зеркало из https://github.com/mozilla/gecko-dev.git
3389 строки
122 KiB
C++
3389 строки
122 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsStyleConsts.h"
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#include "nsIPresContext.h"
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#include "nsIImage.h"
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#include "nsIFrame.h"
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#include "nsPoint.h"
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#include "nsRect.h"
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#include "nsIViewManager.h"
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#include "nsIPresShell.h"
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#include "nsIStyleContext.h"
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#include "nsStyleUtil.h"
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#include "nsIScrollableView.h"
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#include "nsLayoutAtoms.h"
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#include "nsIDrawingSurface.h"
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#include "nsTransform2D.h"
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#include "nsIDeviceContext.h"
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#include "nsIContent.h"
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#include "nsHTMLAtoms.h"
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#include "nsIDocument.h"
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#include "nsIScrollableFrame.h"
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#include "imgIRequest.h"
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#include "imgIContainer.h"
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#include "nsCSSRendering.h"
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#define BORDER_FULL 0 //entire side
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#define BORDER_INSIDE 1 //inside half
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#define BORDER_OUTSIDE 2 //outside half
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//thickness of dashed line relative to dotted line
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#define DOT_LENGTH 1 //square
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#define DASH_LENGTH 3 //3 times longer than dot
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/** The following classes are used by CSSRendering for the rounded rect implementation */
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#define MAXPATHSIZE 12
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#define MAXPOLYPATHSIZE 1000
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enum ePathTypes{
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eOutside =0,
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eInside,
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eCalc,
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eCalcRev
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};
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static void GetPath(nsFloatPoint aPoints[],nsPoint aPolyPath[],PRInt32 *aCurIndex,ePathTypes aPathType,PRInt32 &aC1Index,float aFrac=0);
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static void TileImage(nsIRenderingContext& aRC,nsDrawingSurface aDS,nsRect &aSrcRect,PRInt16 aWidth,PRInt16 aHeight);
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static PRBool GetBGColorForHTMLElement(nsIPresContext *aPresContext,const nsStyleColor *&aBGColor);
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static nsresult GetFrameForBackgroundUpdate(nsIPresContext *aPresContext,nsIFrame *aFrame, nsIFrame **aBGFrame);
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// FillRect or InvertRect depending on the renderingaInvert parameter
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static void FillOrInvertRect(nsIRenderingContext& aRC,nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight, PRBool aInvert);
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static void FillOrInvertRect(nsIRenderingContext& aRC,const nsRect& aRect, PRBool aInvert);
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// Draw a line, skipping that portion which crosses aGap. aGap defines a rectangle gap
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// This services fieldset legends and only works for coords defining horizontal lines.
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void nsCSSRendering::DrawLine (nsIRenderingContext& aContext,
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nscoord aX1, nscoord aY1, nscoord aX2, nscoord aY2,
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nsRect* aGap)
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{
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if (nsnull == aGap) {
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aContext.DrawLine(aX1, aY1, aX2, aY2);
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} else {
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nscoord x1 = (aX1 < aX2) ? aX1 : aX2;
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nscoord x2 = (aX1 < aX2) ? aX2 : aX1;
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nsPoint gapUpperRight(aGap->x + aGap->width, aGap->y);
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nsPoint gapLowerRight(aGap->x + aGap->width, aGap->y + aGap->height);
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if ((aGap->y <= aY1) && (gapLowerRight.y >= aY2)) {
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if ((aGap->x > x1) && (aGap->x < x2)) {
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aContext.DrawLine(x1, aY1, aGap->x, aY1);
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}
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if ((gapLowerRight.x > x1) && (gapLowerRight.x < x2)) {
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aContext.DrawLine(gapUpperRight.x, aY2, x2, aY2);
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}
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} else {
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aContext.DrawLine(aX1, aY1, aX2, aY2);
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}
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}
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}
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// Fill a polygon, skipping that portion which crosses aGap. aGap defines a rectangle gap
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// This services fieldset legends and only works for points defining a horizontal rectangle
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void nsCSSRendering::FillPolygon (nsIRenderingContext& aContext,
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const nsPoint aPoints[],
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PRInt32 aNumPoints,
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nsRect* aGap)
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{
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#ifdef DEBUG
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nsPenMode penMode;
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aContext.GetPenMode(penMode);
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if (penMode == nsPenMode_kInvert) {
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NS_WARNING( "Invert mode ignored in FillPolygon" );
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}
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#endif
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if (nsnull == aGap) {
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aContext.FillPolygon(aPoints, aNumPoints);
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} else if (4 == aNumPoints) {
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nsPoint gapUpperRight(aGap->x + aGap->width, aGap->y);
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nsPoint gapLowerRight(aGap->x + aGap->width, aGap->y + aGap->height);
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// sort the 4 points by x
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nsPoint points[4];
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for (PRInt32 pX = 0; pX < 4; pX++) {
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points[pX] = aPoints[pX];
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}
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for (PRInt32 i = 0; i < 3; i++) {
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for (PRInt32 j = i+1; j < 4; j++) {
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if (points[j].x < points[i].x) {
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nsPoint swap = points[i];
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points[i] = points[j];
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points[j] = swap;
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}
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}
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}
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nsPoint upperLeft = (points[0].y <= points[1].y) ? points[0] : points[1];
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nsPoint lowerLeft = (points[0].y <= points[1].y) ? points[1] : points[0];
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nsPoint upperRight = (points[2].y <= points[3].y) ? points[2] : points[3];
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nsPoint lowerRight = (points[2].y <= points[3].y) ? points[3] : points[2];
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if ((aGap->y <= upperLeft.y) && (gapLowerRight.y >= lowerRight.y)) {
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if ((aGap->x > upperLeft.x) && (aGap->x < upperRight.x)) {
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nsPoint leftRect[4];
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leftRect[0] = upperLeft;
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leftRect[1] = nsPoint(aGap->x, upperLeft.y);
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leftRect[2] = nsPoint(aGap->x, lowerLeft.y);
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leftRect[3] = lowerLeft;
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aContext.FillPolygon(leftRect, 4);
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}
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if ((gapUpperRight.x > upperLeft.x) && (gapUpperRight.x < upperRight.x)) {
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nsPoint rightRect[4];
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rightRect[0] = nsPoint(gapUpperRight.x, upperRight.y);
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rightRect[1] = upperRight;
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rightRect[2] = lowerRight;
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rightRect[3] = nsPoint(gapLowerRight.x, lowerRight.y);
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aContext.FillPolygon(rightRect, 4);
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}
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} else {
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aContext.FillPolygon(aPoints, aNumPoints);
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}
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}
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}
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/**
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* Make a bevel color
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*/
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nscolor nsCSSRendering::MakeBevelColor(PRIntn whichSide, PRUint8 style,
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nscolor aBackgroundColor,
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nscolor aBorderColor,
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PRBool aSpecialCase)
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{
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nscolor colors[2];
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nscolor theColor;
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// Given a background color and a border color
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// calculate the color used for the shading
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if(aSpecialCase)
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NS_GetSpecial3DColors(colors, aBackgroundColor, aBorderColor);
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else
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NS_Get3DColors(colors, aBackgroundColor);
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if ((style == NS_STYLE_BORDER_STYLE_BG_OUTSET) ||
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(style == NS_STYLE_BORDER_STYLE_OUTSET) ||
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(style == NS_STYLE_BORDER_STYLE_RIDGE)) {
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// Flip colors for these two border style
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switch (whichSide) {
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case NS_SIDE_BOTTOM: whichSide = NS_SIDE_TOP; break;
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case NS_SIDE_RIGHT: whichSide = NS_SIDE_LEFT; break;
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case NS_SIDE_TOP: whichSide = NS_SIDE_BOTTOM; break;
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case NS_SIDE_LEFT: whichSide = NS_SIDE_RIGHT; break;
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}
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}
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switch (whichSide) {
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case NS_SIDE_BOTTOM:
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theColor = colors[1];
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break;
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case NS_SIDE_RIGHT:
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theColor = colors[1];
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break;
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case NS_SIDE_TOP:
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theColor = colors[0];
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break;
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case NS_SIDE_LEFT:
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default:
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theColor = colors[0];
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break;
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}
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return theColor;
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}
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// Maximum poly points in any of the polygons we generate below
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#define MAX_POLY_POINTS 4
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// a nifty helper function to create a polygon representing a
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// particular side of a border. This helps localize code for figuring
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// mitered edges. It is mainly used by the solid, inset, and outset
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// styles.
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//
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// If the side can be represented as a line segment (because the thickness
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// is one pixel), then a line with two endpoints is returned
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PRIntn nsCSSRendering::MakeSide(nsPoint aPoints[],
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nsIRenderingContext& aContext,
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PRIntn whichSide,
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const nsRect& outside, const nsRect& inside,
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PRIntn aSkipSides,
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PRIntn borderPart, float borderFrac,
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nscoord twipsPerPixel)
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{
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float borderRest = 1.0f - borderFrac;
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PRIntn np = 0;
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nscoord thickness, outsideEdge, insideEdge, outsideTL, insideTL, outsideBR,
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insideBR;
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// Initialize the following six nscoord's:
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// outsideEdge, insideEdge, outsideTL, insideTL, outsideBR, insideBR
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// so that outsideEdge is the x or y of the outside edge, etc., and
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// outsideTR is the y or x at the top or right end, etc., e.g.:
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//
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// outsideEdge --- ----------------------------------------
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// \ /
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// \ /
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// \ /
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// insideEdge ------- ----------------------------------
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// | | | |
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// outsideTL insideTL insideBR outsideBR
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//
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// if we don't want the bevel, we'll get rid of it later by setting
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// outsideXX to insideXX
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switch (whichSide) {
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case NS_SIDE_TOP:
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// the TL points are the left end; the BR points are the right end
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outsideEdge = outside.y;
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insideEdge = inside.y;
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outsideTL = outside.x;
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insideTL = inside.x;
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insideBR = inside.XMost();
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outsideBR = outside.XMost();
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break;
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case NS_SIDE_BOTTOM:
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// the TL points are the left end; the BR points are the right end
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outsideEdge = outside.YMost();
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insideEdge = inside.YMost();
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outsideTL = outside.x;
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insideTL = inside.x;
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insideBR = inside.XMost();
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outsideBR = outside.XMost();
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break;
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case NS_SIDE_LEFT:
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// the TL points are the top end; the BR points are the bottom end
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outsideEdge = outside.x;
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insideEdge = inside.x;
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outsideTL = outside.y;
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insideTL = inside.y;
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insideBR = inside.YMost();
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outsideBR = outside.YMost();
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break;
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case NS_SIDE_RIGHT:
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// the TL points are the top end; the BR points are the bottom end
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outsideEdge = outside.XMost();
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insideEdge = inside.XMost();
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outsideTL = outside.y;
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insideTL = inside.y;
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insideBR = inside.YMost();
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outsideBR = outside.YMost();
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break;
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}
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// Don't draw the bevels if an adjacent side is skipped
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if ( (whichSide == NS_SIDE_TOP) || (whichSide == NS_SIDE_BOTTOM) ) {
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// a top or bottom side
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if ((1<<NS_SIDE_LEFT) & aSkipSides) {
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insideTL = outsideTL;
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}
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if ((1<<NS_SIDE_RIGHT) & aSkipSides) {
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insideBR = outsideBR;
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}
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} else {
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// a right or left side
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if ((1<<NS_SIDE_TOP) & aSkipSides) {
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insideTL = outsideTL;
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}
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if ((1<<NS_SIDE_BOTTOM) & aSkipSides) {
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insideBR = outsideBR;
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}
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}
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// move things around when only drawing part of the border
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if (borderPart == BORDER_INSIDE) {
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outsideEdge = nscoord(outsideEdge * borderFrac + insideEdge * borderRest);
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outsideTL = nscoord(outsideTL * borderFrac + insideTL * borderRest);
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outsideBR = nscoord(outsideBR * borderFrac + insideBR * borderRest);
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} else if (borderPart == BORDER_OUTSIDE ) {
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insideEdge = nscoord(insideEdge * borderFrac + outsideEdge * borderRest);
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insideTL = nscoord(insideTL * borderFrac + outsideTL * borderRest);
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insideBR = nscoord(insideBR * borderFrac + outsideBR * borderRest);
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}
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// Base our thickness check on the segment being less than a pixel and 1/2
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twipsPerPixel += twipsPerPixel >> 2;
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// find the thickness of the piece being drawn
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if ((whichSide == NS_SIDE_TOP) || (whichSide == NS_SIDE_LEFT)) {
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thickness = insideEdge - outsideEdge;
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} else {
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thickness = outsideEdge - insideEdge;
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}
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// if returning a line, do it along inside edge for bottom or right borders
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// so that it's in the same place as it would be with polygons (why?)
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// XXX The previous version of the code shortened the right border too.
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if ( !((thickness >= twipsPerPixel) || (borderPart != BORDER_FULL)) &&
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((whichSide == NS_SIDE_BOTTOM) || (whichSide == NS_SIDE_RIGHT))) {
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outsideEdge = insideEdge;
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}
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// return the appropriate line or trapezoid
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if ((whichSide == NS_SIDE_TOP) || (whichSide == NS_SIDE_BOTTOM)) {
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// top and bottom borders
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aPoints[np++].MoveTo(outsideTL,outsideEdge);
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aPoints[np++].MoveTo(outsideBR,outsideEdge);
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// XXX Making this condition only (thickness >= twipsPerPixel) will
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// improve double borders and some cases of groove/ridge,
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// but will cause problems with table borders. See last and third
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// from last tests in test4.htm
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// Doing it this way emulates the old behavior. It might be worth
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// fixing.
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if ((thickness >= twipsPerPixel) || (borderPart != BORDER_FULL) ) {
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aPoints[np++].MoveTo(insideBR,insideEdge);
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aPoints[np++].MoveTo(insideTL,insideEdge);
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}
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} else {
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// right and left borders
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// XXX Ditto above
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if ((thickness >= twipsPerPixel) || (borderPart != BORDER_FULL) ) {
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aPoints[np++].MoveTo(insideEdge,insideBR);
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aPoints[np++].MoveTo(insideEdge,insideTL);
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}
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aPoints[np++].MoveTo(outsideEdge,outsideTL);
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aPoints[np++].MoveTo(outsideEdge,outsideBR);
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}
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return np;
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}
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void nsCSSRendering::DrawSide(nsIRenderingContext& aContext,
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PRIntn whichSide,
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const PRUint8 borderStyle,
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const nscolor borderColor,
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const nscolor aBackgroundColor,
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const nsRect& borderOutside,
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const nsRect& borderInside,
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PRIntn aSkipSides,
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nscoord twipsPerPixel,
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nsRect* aGap)
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{
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nsPoint theSide[MAX_POLY_POINTS];
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nscolor theColor = borderColor;
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PRUint8 theStyle = borderStyle;
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PRInt32 np;
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switch (theStyle) {
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case NS_STYLE_BORDER_STYLE_NONE:
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case NS_STYLE_BORDER_STYLE_HIDDEN:
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case NS_STYLE_BORDER_STYLE_BLANK:
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return;
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case NS_STYLE_BORDER_STYLE_DOTTED: //handled a special case elsewhere
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case NS_STYLE_BORDER_STYLE_DASHED: //handled a special case elsewhere
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break; // That was easy...
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case NS_STYLE_BORDER_STYLE_GROOVE:
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case NS_STYLE_BORDER_STYLE_RIDGE:
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np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside, aSkipSides,
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BORDER_INSIDE, 0.5f, twipsPerPixel);
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aContext.SetColor ( MakeBevelColor (whichSide,
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((theStyle == NS_STYLE_BORDER_STYLE_RIDGE) ?
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NS_STYLE_BORDER_STYLE_GROOVE :
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NS_STYLE_BORDER_STYLE_RIDGE),
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aBackgroundColor, theColor,
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PR_TRUE));
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if (2 == np) {
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//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
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DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
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} else {
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//aContext.FillPolygon (theSide, np);
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FillPolygon (aContext, theSide, np, aGap);
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}
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np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
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BORDER_OUTSIDE, 0.5f, twipsPerPixel);
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aContext.SetColor ( MakeBevelColor (whichSide, theStyle, aBackgroundColor,
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theColor, PR_TRUE));
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if (2 == np) {
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//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
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DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
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} else {
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//aContext.FillPolygon (theSide, np);
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FillPolygon (aContext, theSide, np, aGap);
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}
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break;
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case NS_STYLE_BORDER_STYLE_SOLID:
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np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
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BORDER_FULL, 1.0f, twipsPerPixel);
|
|
aContext.SetColor (borderColor);
|
|
if (2 == np) {
|
|
//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
|
|
DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
|
|
} else {
|
|
//aContext.FillPolygon (theSide, np);
|
|
FillPolygon (aContext, theSide, np, aGap);
|
|
}
|
|
break;
|
|
|
|
case NS_STYLE_BORDER_STYLE_DOUBLE:
|
|
np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
|
|
BORDER_INSIDE, 0.333333f, twipsPerPixel);
|
|
aContext.SetColor (borderColor);
|
|
if (2 == np) {
|
|
//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
|
|
DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
|
|
} else {
|
|
//aContext.FillPolygon (theSide, np);
|
|
FillPolygon (aContext, theSide, np, aGap);
|
|
}
|
|
np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
|
|
BORDER_OUTSIDE, 0.333333f, twipsPerPixel);
|
|
if (2 == np) {
|
|
//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
|
|
DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
|
|
} else {
|
|
//aContext.FillPolygon (theSide, np);
|
|
FillPolygon (aContext, theSide, np, aGap);
|
|
}
|
|
break;
|
|
|
|
case NS_STYLE_BORDER_STYLE_BG_OUTSET:
|
|
case NS_STYLE_BORDER_STYLE_BG_INSET:
|
|
np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
|
|
BORDER_FULL, 1.0f, twipsPerPixel);
|
|
aContext.SetColor ( MakeBevelColor (whichSide, theStyle, aBackgroundColor,
|
|
theColor, PR_FALSE));
|
|
if (2 == np) {
|
|
//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
|
|
DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
|
|
} else {
|
|
//aContext.FillPolygon (theSide, np);
|
|
FillPolygon (aContext, theSide, np, aGap);
|
|
}
|
|
break;
|
|
case NS_STYLE_BORDER_STYLE_OUTSET:
|
|
case NS_STYLE_BORDER_STYLE_INSET:
|
|
np = MakeSide (theSide, aContext, whichSide, borderOutside, borderInside,aSkipSides,
|
|
BORDER_FULL, 1.0f, twipsPerPixel);
|
|
aContext.SetColor ( MakeBevelColor (whichSide, theStyle, aBackgroundColor,
|
|
theColor, PR_TRUE));
|
|
if (2 == np) {
|
|
//aContext.DrawLine (theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y);
|
|
DrawLine (aContext, theSide[0].x, theSide[0].y, theSide[1].x, theSide[1].y, aGap);
|
|
} else {
|
|
//aContext.FillPolygon (theSide, np);
|
|
FillPolygon (aContext, theSide, np, aGap);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Draw a dotted/dashed sides of a box
|
|
*/
|
|
//XXX dashes which span more than two edges are not handled properly MMP
|
|
void nsCSSRendering::DrawDashedSides(PRIntn startSide,
|
|
nsIRenderingContext& aContext,
|
|
const nsRect& aDirtyRect,
|
|
const PRUint8 borderStyles[],
|
|
const nscolor borderColors[],
|
|
const nsRect& borderOutside,
|
|
const nsRect& borderInside,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap)
|
|
{
|
|
PRIntn dashLength;
|
|
nsRect dashRect, firstRect, currRect;
|
|
PRBool bSolid = PR_TRUE;
|
|
float over = 0.0f;
|
|
PRUint8 style = borderStyles[startSide];
|
|
PRBool skippedSide = PR_FALSE;
|
|
nscoord xstart,xwidth,ystart,ywidth;
|
|
|
|
// find out were x and y start
|
|
if(aDirtyRect.x > borderInside.x) {
|
|
xstart = aDirtyRect.x;
|
|
} else {
|
|
xstart = borderInside.x;
|
|
}
|
|
|
|
if(aDirtyRect.y > borderInside.y) {
|
|
ystart = aDirtyRect.y;
|
|
} else {
|
|
ystart = aDirtyRect.y;
|
|
}
|
|
|
|
// find the x and y width
|
|
xwidth = aDirtyRect.XMost();
|
|
ywidth = aDirtyRect.YMost();
|
|
|
|
for (PRIntn whichSide = startSide; whichSide < 4; whichSide++) {
|
|
PRUint8 prevStyle = style;
|
|
style = borderStyles[whichSide];
|
|
if ((1<<whichSide) & aSkipSides) {
|
|
// Skipped side
|
|
skippedSide = PR_TRUE;
|
|
continue;
|
|
}
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
if ((style != prevStyle) || skippedSide) {
|
|
//style discontinuity
|
|
over = 0.0f;
|
|
bSolid = PR_TRUE;
|
|
}
|
|
|
|
// XXX units for dash & dot?
|
|
if (style == NS_STYLE_BORDER_STYLE_DASHED) {
|
|
dashLength = DASH_LENGTH;
|
|
} else {
|
|
dashLength = DOT_LENGTH;
|
|
}
|
|
|
|
aContext.SetColor(borderColors[whichSide]);
|
|
switch (whichSide) {
|
|
case NS_SIDE_LEFT:
|
|
//XXX need to properly handle wrap around from last edge to first edge
|
|
//(this is the first edge) MMP
|
|
dashRect.width = borderInside.x - borderOutside.x;
|
|
dashRect.height = nscoord(dashRect.width * dashLength);
|
|
dashRect.x = borderOutside.x;
|
|
dashRect.y = borderInside.YMost() - dashRect.height;
|
|
|
|
if (over > 0.0f) {
|
|
firstRect.x = dashRect.x;
|
|
firstRect.width = dashRect.width;
|
|
firstRect.height = nscoord(dashRect.height * over);
|
|
firstRect.y = dashRect.y + (dashRect.height - firstRect.height);
|
|
over = 0.0f;
|
|
currRect = firstRect;
|
|
} else {
|
|
currRect = dashRect;
|
|
}
|
|
|
|
while (currRect.YMost() > borderInside.y) {
|
|
//clip if necessary
|
|
if (currRect.y < borderInside.y) {
|
|
over = float(borderInside.y - dashRect.y) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height - (borderInside.y - currRect.y);
|
|
currRect.y = borderInside.y;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y - currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_TOP:
|
|
//if we are continuing a solid rect, fill in the corner first
|
|
if (bSolid) {
|
|
aContext.FillRect(borderOutside.x, borderOutside.y,
|
|
borderInside.x - borderOutside.x,
|
|
borderInside.y - borderOutside.y);
|
|
}
|
|
|
|
dashRect.height = borderInside.y - borderOutside.y;
|
|
dashRect.width = dashRect.height * dashLength;
|
|
dashRect.x = borderInside.x;
|
|
dashRect.y = borderOutside.y;
|
|
|
|
if (over > 0.0f) {
|
|
firstRect.x = dashRect.x;
|
|
firstRect.y = dashRect.y;
|
|
firstRect.width = nscoord(dashRect.width * over);
|
|
firstRect.height = dashRect.height;
|
|
over = 0.0f;
|
|
currRect = firstRect;
|
|
} else {
|
|
currRect = dashRect;
|
|
}
|
|
|
|
while (currRect.x < borderInside.XMost()) {
|
|
//clip if necessary
|
|
if (currRect.XMost() > borderInside.XMost()) {
|
|
over = float(dashRect.XMost() - borderInside.XMost()) /
|
|
float(dashRect.width);
|
|
currRect.width = currRect.width -
|
|
(currRect.XMost() - borderInside.XMost());
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.x = dashRect.x + currRect.width;
|
|
currRect = dashRect;
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_RIGHT:
|
|
//if we are continuing a solid rect, fill in the corner first
|
|
if (bSolid) {
|
|
aContext.FillRect(borderInside.XMost(), borderOutside.y,
|
|
borderOutside.XMost() - borderInside.XMost(),
|
|
borderInside.y - borderOutside.y);
|
|
}
|
|
|
|
dashRect.width = borderOutside.XMost() - borderInside.XMost();
|
|
dashRect.height = nscoord(dashRect.width * dashLength);
|
|
dashRect.x = borderInside.XMost();
|
|
dashRect.y = borderInside.y;
|
|
|
|
if (over > 0.0f) {
|
|
firstRect.x = dashRect.x;
|
|
firstRect.y = dashRect.y;
|
|
firstRect.width = dashRect.width;
|
|
firstRect.height = nscoord(dashRect.height * over);
|
|
over = 0.0f;
|
|
currRect = firstRect;
|
|
} else {
|
|
currRect = dashRect;
|
|
}
|
|
|
|
while (currRect.y < borderInside.YMost()) {
|
|
//clip if necessary
|
|
if (currRect.YMost() > borderInside.YMost()) {
|
|
over = float(dashRect.YMost() - borderInside.YMost()) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height -
|
|
(currRect.YMost() - borderInside.YMost());
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y + currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_BOTTOM:
|
|
//if we are continuing a solid rect, fill in the corner first
|
|
if (bSolid) {
|
|
aContext.FillRect(borderInside.XMost(), borderInside.YMost(),
|
|
borderOutside.XMost() - borderInside.XMost(),
|
|
borderOutside.YMost() - borderInside.YMost());
|
|
}
|
|
|
|
dashRect.height = borderOutside.YMost() - borderInside.YMost();
|
|
dashRect.width = nscoord(dashRect.height * dashLength);
|
|
dashRect.x = borderInside.XMost() - dashRect.width;
|
|
dashRect.y = borderInside.YMost();
|
|
|
|
if (over > 0.0f) {
|
|
firstRect.y = dashRect.y;
|
|
firstRect.width = nscoord(dashRect.width * over);
|
|
firstRect.height = dashRect.height;
|
|
firstRect.x = dashRect.x + (dashRect.width - firstRect.width);
|
|
over = 0.0f;
|
|
currRect = firstRect;
|
|
} else {
|
|
currRect = dashRect;
|
|
}
|
|
|
|
while (currRect.XMost() > borderInside.x) {
|
|
//clip if necessary
|
|
if (currRect.x < borderInside.x) {
|
|
over = float(borderInside.x - dashRect.x) / float(dashRect.width);
|
|
currRect.width = currRect.width - (borderInside.x - currRect.x);
|
|
currRect.x = borderInside.x;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.x = dashRect.x - currRect.width;
|
|
currRect = dashRect;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
skippedSide = PR_FALSE;
|
|
}
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 10/22/99 dwc
|
|
*/
|
|
void nsCSSRendering::DrawDashedSides(PRIntn startSide,
|
|
nsIRenderingContext& aContext,
|
|
const nsRect& aDirtyRect,
|
|
const nsStyleColor* aColorStyle,
|
|
const nsStyleBorder* aBorderStyle,
|
|
const nsStyleOutline* aOutlineStyle,
|
|
PRBool aDoOutline,
|
|
const nsRect& borderOutside,
|
|
const nsRect& borderInside,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap)
|
|
{
|
|
|
|
PRIntn dashLength;
|
|
nsRect dashRect, currRect;
|
|
nscoord xstart,xwidth,ystart,ywidth,temp,temp1,adjust;
|
|
PRBool bSolid = PR_TRUE;
|
|
float over = 0.0f;
|
|
PRBool skippedSide = PR_FALSE;
|
|
const nscolor kBlackColor = NS_RGB(0,0,0);
|
|
|
|
NS_ASSERTION((aDoOutline && aOutlineStyle) || (!aDoOutline && aBorderStyle), "null params not allowed");
|
|
PRUint8 style = aDoOutline
|
|
? aOutlineStyle->GetOutlineStyle()
|
|
: aBorderStyle->GetBorderStyle(startSide);
|
|
|
|
// find out were x and y start
|
|
if(aDirtyRect.x > borderInside.x) {
|
|
xstart = aDirtyRect.x;
|
|
} else {
|
|
xstart = borderInside.x;
|
|
}
|
|
|
|
if(aDirtyRect.y > borderInside.y) {
|
|
ystart = aDirtyRect.y;
|
|
} else {
|
|
ystart = borderInside.y;
|
|
}
|
|
|
|
|
|
// find the x and y width
|
|
xwidth = aDirtyRect.XMost();
|
|
ywidth = aDirtyRect.YMost();
|
|
|
|
|
|
for (PRIntn whichSide = startSide; whichSide < 4; whichSide++) {
|
|
PRUint8 prevStyle = style;
|
|
style = aDoOutline
|
|
? aOutlineStyle->GetOutlineStyle()
|
|
: aBorderStyle->GetBorderStyle(whichSide);
|
|
if ((1<<whichSide) & aSkipSides) {
|
|
// Skipped side
|
|
skippedSide = PR_TRUE;
|
|
continue;
|
|
}
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
if ((style != prevStyle) || skippedSide) {
|
|
//style discontinuity
|
|
over = 0.0f;
|
|
bSolid = PR_TRUE;
|
|
}
|
|
|
|
if (style == NS_STYLE_BORDER_STYLE_DASHED) {
|
|
dashLength = DASH_LENGTH;
|
|
} else {
|
|
dashLength = DOT_LENGTH;
|
|
}
|
|
|
|
nscolor sideColor(kBlackColor); // default to black in case color cannot be resolved
|
|
// (because invert is not supported on cur platform)
|
|
PRBool isInvert=PR_FALSE;
|
|
if (aDoOutline) {
|
|
// see if the outline color is 'invert'
|
|
if (aOutlineStyle->GetOutlineInvert()) {
|
|
isInvert = PR_TRUE;
|
|
} else {
|
|
aOutlineStyle->GetOutlineColor(sideColor);
|
|
}
|
|
} else {
|
|
PRBool transparent;
|
|
PRBool foreground;
|
|
aBorderStyle->GetBorderColor(whichSide, sideColor, transparent, foreground);
|
|
if (foreground)
|
|
sideColor = aColorStyle->mColor;
|
|
if (transparent)
|
|
continue; // side is transparent
|
|
}
|
|
aContext.SetColor(sideColor);
|
|
|
|
switch (whichSide) {
|
|
case NS_SIDE_RIGHT:
|
|
case NS_SIDE_LEFT:
|
|
bSolid = PR_FALSE;
|
|
|
|
// This is our dot or dash..
|
|
if(whichSide==NS_SIDE_LEFT){
|
|
dashRect.width = borderInside.x - borderOutside.x;
|
|
} else {
|
|
dashRect.width = borderOutside.XMost() - borderInside.XMost();
|
|
}
|
|
if( dashRect.width >0 ) {
|
|
dashRect.height = dashRect.width * dashLength;
|
|
dashRect.y = borderOutside.y;
|
|
|
|
if(whichSide == NS_SIDE_RIGHT){
|
|
dashRect.x = borderInside.XMost();
|
|
} else {
|
|
dashRect.x = borderOutside.x;
|
|
}
|
|
|
|
temp = borderOutside.YMost();
|
|
temp1 = temp/dashRect.height;
|
|
|
|
currRect = dashRect;
|
|
|
|
if((temp1%2)==0){
|
|
adjust = (dashRect.height-(temp%dashRect.height))/2; // adjust back
|
|
// draw in the left and right
|
|
FillOrInvertRect(aContext, dashRect.x, borderOutside.y,dashRect.width, dashRect.height-adjust,isInvert);
|
|
FillOrInvertRect(aContext,dashRect.x,(borderOutside.YMost()-(dashRect.height-adjust)),dashRect.width, dashRect.height-adjust,isInvert);
|
|
currRect.y += (dashRect.height-adjust);
|
|
temp = temp-= (dashRect.height-adjust);
|
|
} else {
|
|
adjust = (temp%dashRect.width)/2; // adjust a tad longer
|
|
// draw in the left and right
|
|
FillOrInvertRect(aContext, dashRect.x, borderOutside.y,dashRect.width, dashRect.height+adjust,isInvert);
|
|
FillOrInvertRect(aContext, dashRect.x,(borderOutside.YMost()-(dashRect.height+adjust)),dashRect.width, dashRect.height+adjust,isInvert);
|
|
currRect.y += (dashRect.height+adjust);
|
|
temp = temp-= (dashRect.height+adjust);
|
|
}
|
|
|
|
if( temp > ywidth)
|
|
temp = ywidth;
|
|
|
|
// get the currRect's x into the view before we start
|
|
if( currRect.y < aDirtyRect.y){
|
|
temp1 = NSToCoordFloor((float)((aDirtyRect.y-currRect.y)/dashRect.height));
|
|
currRect.y += temp1*dashRect.height;
|
|
if((temp1%2)==1){
|
|
bSolid = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
while(currRect.y<temp) {
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
FillOrInvertRect(aContext, currRect,isInvert);
|
|
}
|
|
|
|
bSolid = PRBool(!bSolid);
|
|
currRect.y += dashRect.height;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_BOTTOM:
|
|
case NS_SIDE_TOP:
|
|
bSolid = PR_FALSE;
|
|
|
|
// This is our dot or dash..
|
|
|
|
if(whichSide==NS_SIDE_TOP){
|
|
dashRect.height = borderInside.y - borderOutside.y;
|
|
} else {
|
|
dashRect.height = borderOutside.YMost() - borderInside.YMost();
|
|
}
|
|
if( dashRect.height >0 ) {
|
|
dashRect.width = dashRect.height * dashLength;
|
|
dashRect.x = borderOutside.x;
|
|
|
|
if(whichSide == NS_SIDE_BOTTOM){
|
|
dashRect.y = borderInside.YMost();
|
|
} else {
|
|
dashRect.y = borderOutside.y;
|
|
}
|
|
|
|
temp = borderOutside.XMost();
|
|
temp1 = temp/dashRect.width;
|
|
|
|
currRect = dashRect;
|
|
|
|
if((temp1%2)==0){
|
|
adjust = (dashRect.width-(temp%dashRect.width))/2; // even, adjust back
|
|
// draw in the left and right
|
|
FillOrInvertRect(aContext, borderOutside.x,dashRect.y,dashRect.width-adjust,dashRect.height,isInvert);
|
|
FillOrInvertRect(aContext, (borderOutside.XMost()-(dashRect.width-adjust)),dashRect.y,dashRect.width-adjust,dashRect.height,isInvert);
|
|
currRect.x += (dashRect.width-adjust);
|
|
temp = temp-= (dashRect.width-adjust);
|
|
} else {
|
|
adjust = (temp%dashRect.width)/2;
|
|
// draw in the left and right
|
|
FillOrInvertRect(aContext, borderOutside.x,dashRect.y,dashRect.width+adjust,dashRect.height,isInvert);
|
|
FillOrInvertRect(aContext, (borderOutside.XMost()-(dashRect.width+adjust)),dashRect.y,dashRect.width+adjust,dashRect.height,isInvert);
|
|
currRect.x += (dashRect.width+adjust);
|
|
temp = temp-= (dashRect.width+adjust);
|
|
}
|
|
|
|
|
|
if( temp > xwidth)
|
|
temp = xwidth;
|
|
|
|
// get the currRect's x into the view before we start
|
|
if( currRect.x < aDirtyRect.x){
|
|
temp1 = NSToCoordFloor((float)((aDirtyRect.x-currRect.x)/dashRect.width));
|
|
currRect.x += temp1*dashRect.width;
|
|
if((temp1%2)==1){
|
|
bSolid = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
while(currRect.x<temp) {
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
FillOrInvertRect(aContext, currRect,isInvert);
|
|
}
|
|
|
|
bSolid = PRBool(!bSolid);
|
|
currRect.x += dashRect.width;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
skippedSide = PR_FALSE;
|
|
}
|
|
}
|
|
|
|
/* draw the portions of the border described in aBorderEdges that are dashed.
|
|
* a border has 4 edges. Each edge has 1 or more segments.
|
|
* "inside edges" are drawn differently than "outside edges" so the shared edges will match up.
|
|
* in the case of table collapsing borders, the table edge is the "outside" edge and
|
|
* cell edges are always "inside" edges (so adjacent cells have 2 shared "inside" edges.)
|
|
* There is a case for each of the four sides. Only the left side is well documented. The others
|
|
* are very similar.
|
|
*/
|
|
// XXX: doesn't do corners or junctions well at all. Just uses logic stolen
|
|
// from DrawDashedSides which is insufficient
|
|
void nsCSSRendering::DrawDashedSegments(nsIRenderingContext& aContext,
|
|
const nsRect& aBounds,
|
|
nsBorderEdges * aBorderEdges,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap)
|
|
{
|
|
PRIntn dashLength;
|
|
nsRect dashRect, currRect;
|
|
|
|
PRBool bSolid = PR_TRUE;
|
|
float over = 0.0f;
|
|
PRBool skippedSide = PR_FALSE;
|
|
PRIntn whichSide=0;
|
|
|
|
|
|
// do this just to set up initial condition for loop
|
|
// "segment" is the current portion of the edge we are computing
|
|
nsBorderEdge * segment = (nsBorderEdge *)(aBorderEdges->mEdges[whichSide].ElementAt(0));
|
|
PRUint8 style = segment->mStyle;
|
|
for ( ; whichSide < 4; whichSide++)
|
|
{
|
|
if ((1<<whichSide) & aSkipSides) {
|
|
// Skipped side
|
|
skippedSide = PR_TRUE;
|
|
continue;
|
|
}
|
|
nscoord x=0; nscoord y=0;
|
|
PRInt32 i;
|
|
PRInt32 segmentCount = aBorderEdges->mEdges[whichSide].Count();
|
|
nsBorderEdges * neighborBorderEdges=nsnull;
|
|
PRIntn neighborEdgeCount=0; // keeps track of which inside neighbor is shared with an outside segment
|
|
for (i=0; i<segmentCount; i++)
|
|
{
|
|
bSolid=PR_TRUE;
|
|
over = 0.0f;
|
|
segment = (nsBorderEdge *)(aBorderEdges->mEdges[whichSide].ElementAt(i));
|
|
style = segment->mStyle;
|
|
|
|
// XXX units for dash & dot?
|
|
if (style == NS_STYLE_BORDER_STYLE_DASHED) {
|
|
dashLength = DASH_LENGTH;
|
|
} else {
|
|
dashLength = DOT_LENGTH;
|
|
}
|
|
|
|
aContext.SetColor(segment->mColor);
|
|
switch (whichSide) {
|
|
case NS_SIDE_LEFT:
|
|
{ // draw left segment i
|
|
nsBorderEdge * topEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_TOP].ElementAt(0));
|
|
if (0==y)
|
|
{ // y is the offset to the top of this segment. 0 means its the topmost left segment
|
|
y = aBorderEdges->mMaxBorderWidth.top - topEdge->mWidth;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
y += topEdge->mWidth;
|
|
}
|
|
// the x offset is the x position offset by the max width of the left edge minus this segment's width
|
|
x = aBounds.x + (aBorderEdges->mMaxBorderWidth.left - segment->mWidth);
|
|
nscoord height = segment->mLength;
|
|
// the space between borderOutside and borderInside inclusive is the segment.
|
|
nsRect borderOutside(x, y, aBounds.width, height);
|
|
y += segment->mLength; // keep track of the y offset for the next segment
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
nsRect borderInside(borderOutside);
|
|
nsMargin outsideMargin(segment->mWidth, 0, 0, 0);
|
|
borderInside.Deflate(outsideMargin);
|
|
nscoord totalLength = segment->mLength; // the computed length of this segment
|
|
// outside edges need info from their inside neighbor. The following code keeps track
|
|
// of which segment of the inside neighbor's shared edge we should use for this outside segment
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
{
|
|
if (segment->mInsideNeighbor == neighborBorderEdges)
|
|
{
|
|
neighborEdgeCount++;
|
|
}
|
|
else
|
|
{
|
|
neighborBorderEdges = segment->mInsideNeighbor;
|
|
neighborEdgeCount=0;
|
|
}
|
|
nsBorderEdge * neighborLeft = (nsBorderEdge *)(segment->mInsideNeighbor->mEdges[NS_SIDE_LEFT].ElementAt(neighborEdgeCount));
|
|
totalLength = neighborLeft->mLength;
|
|
}
|
|
dashRect.width = borderInside.x - borderOutside.x;
|
|
dashRect.height = nscoord(dashRect.width * dashLength);
|
|
dashRect.x = borderOutside.x;
|
|
dashRect.y = borderOutside.y + (totalLength/2) - dashRect.height;
|
|
if ((PR_TRUE==aBorderEdges->mOutsideEdge) && (0!=i))
|
|
dashRect.y -= topEdge->mWidth; // account for the topmost left edge corner with the leftmost top edge
|
|
if (0)
|
|
{
|
|
printf(" L: totalLength = %d, borderOutside.y = %d, midpoint %d, dashRect.y = %d\n",
|
|
totalLength, borderOutside.y, borderOutside.y +(totalLength/2), dashRect.y);
|
|
}
|
|
currRect = dashRect;
|
|
|
|
// we draw the segment in 2 halves to get the inside and outside edges to line up on the
|
|
// centerline of the shared edge.
|
|
|
|
// draw the top half
|
|
while (currRect.YMost() > borderInside.y) {
|
|
//clip if necessary
|
|
if (currRect.y < borderInside.y) {
|
|
over = float(borderInside.y - dashRect.y) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height - (borderInside.y - currRect.y);
|
|
currRect.y = borderInside.y;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (0)
|
|
{
|
|
printf("DASHED LEFT: xywh in loop currRect = %d %d %d %d %s\n",
|
|
currRect.x, currRect.y, currRect.width, currRect.height, bSolid?"TRUE":"FALSE");
|
|
}
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y - currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
|
|
// draw the bottom half
|
|
dashRect.y = borderOutside.y + (totalLength/2) + dashRect.height;
|
|
if ((PR_TRUE==aBorderEdges->mOutsideEdge) && (0!=i))
|
|
dashRect.y -= topEdge->mWidth;
|
|
currRect = dashRect;
|
|
bSolid=PR_TRUE;
|
|
over = 0.0f;
|
|
while (currRect.YMost() < borderInside.YMost()) {
|
|
//clip if necessary
|
|
if (currRect.y < borderInside.y) {
|
|
over = float(borderInside.y - dashRect.y) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height - (borderInside.y - currRect.y);
|
|
currRect.y = borderInside.y;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (0)
|
|
{
|
|
printf("DASHED LEFT: xywh in loop currRect = %d %d %d %d %s\n",
|
|
currRect.x, currRect.y, currRect.width, currRect.height, bSolid?"TRUE":"FALSE");
|
|
}
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y + currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_TOP:
|
|
{ // draw top segment i
|
|
if (0==x)
|
|
{
|
|
nsBorderEdge * leftEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
x = aBorderEdges->mMaxBorderWidth.left - leftEdge->mWidth;
|
|
}
|
|
y = aBounds.y;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge) // segments of the outside edge are bottom-aligned
|
|
y += aBorderEdges->mMaxBorderWidth.top - segment->mWidth;
|
|
nsRect borderOutside(x, y, segment->mLength, aBounds.height);
|
|
x += segment->mLength;
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
nsRect borderInside(borderOutside);
|
|
nsBorderEdge * neighbor;
|
|
// XXX Adding check to make sure segment->mInsideNeighbor is not null
|
|
// so it will do the else part, at this point we are assuming this is an
|
|
// ok thing to do (Bug 52130)
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge && segment->mInsideNeighbor)
|
|
neighbor = (nsBorderEdge *)(segment->mInsideNeighbor->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
else
|
|
neighbor = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
nsMargin outsideMargin(neighbor->mWidth, segment->mWidth, 0, segment->mWidth);
|
|
borderInside.Deflate(outsideMargin);
|
|
nscoord firstRectWidth = 0;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge && 0==i)
|
|
{
|
|
firstRectWidth = borderInside.x - borderOutside.x;
|
|
aContext.FillRect(borderOutside.x, borderOutside.y,
|
|
firstRectWidth,
|
|
borderInside.y - borderOutside.y);
|
|
}
|
|
|
|
dashRect.height = borderInside.y - borderOutside.y;
|
|
dashRect.width = dashRect.height * dashLength;
|
|
dashRect.x = borderOutside.x + firstRectWidth;
|
|
dashRect.y = borderOutside.y;
|
|
currRect = dashRect;
|
|
|
|
while (currRect.x < borderInside.XMost()) {
|
|
//clip if necessary
|
|
if (currRect.XMost() > borderInside.XMost()) {
|
|
over = float(dashRect.XMost() - borderInside.XMost()) /
|
|
float(dashRect.width);
|
|
currRect.width = currRect.width -
|
|
(currRect.XMost() - borderInside.XMost());
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.x = dashRect.x + currRect.width;
|
|
currRect = dashRect;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_RIGHT:
|
|
{ // draw right segment i
|
|
nsBorderEdge * topEdge = (nsBorderEdge *)
|
|
(aBorderEdges->mEdges[NS_SIDE_TOP].ElementAt(aBorderEdges->mEdges[NS_SIDE_TOP].Count()-1));
|
|
if (0==y)
|
|
{
|
|
y = aBorderEdges->mMaxBorderWidth.top - topEdge->mWidth;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
y += topEdge->mWidth;
|
|
}
|
|
nscoord width;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
{
|
|
width = aBounds.width - aBorderEdges->mMaxBorderWidth.right;
|
|
width += segment->mWidth;
|
|
}
|
|
else
|
|
{
|
|
width = aBounds.width;
|
|
}
|
|
nscoord height = segment->mLength;
|
|
nsRect borderOutside(aBounds.x, y, width, height);
|
|
y += segment->mLength;
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
nsRect borderInside(borderOutside);
|
|
nsMargin outsideMargin(segment->mWidth, 0, (segment->mWidth), 0);
|
|
borderInside.Deflate(outsideMargin);
|
|
nscoord totalLength = segment->mLength;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
{
|
|
if (segment->mInsideNeighbor == neighborBorderEdges)
|
|
{
|
|
neighborEdgeCount++;
|
|
}
|
|
else
|
|
{
|
|
neighborBorderEdges = segment->mInsideNeighbor;
|
|
neighborEdgeCount=0;
|
|
}
|
|
nsBorderEdge * neighborRight = (nsBorderEdge *)(segment->mInsideNeighbor->mEdges[NS_SIDE_RIGHT].ElementAt(neighborEdgeCount));
|
|
totalLength = neighborRight->mLength;
|
|
}
|
|
dashRect.width = borderOutside.XMost() - borderInside.XMost();
|
|
dashRect.height = nscoord(dashRect.width * dashLength);
|
|
dashRect.x = borderInside.XMost();
|
|
dashRect.y = borderOutside.y + (totalLength/2) - dashRect.height;
|
|
if ((PR_TRUE==aBorderEdges->mOutsideEdge) && (0!=i))
|
|
dashRect.y -= topEdge->mWidth;
|
|
currRect = dashRect;
|
|
|
|
// draw the top half
|
|
while (currRect.YMost() > borderInside.y) {
|
|
//clip if necessary
|
|
if (currRect.y < borderInside.y) {
|
|
over = float(borderInside.y - dashRect.y) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height - (borderInside.y - currRect.y);
|
|
currRect.y = borderInside.y;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y - currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
|
|
// draw the bottom half
|
|
dashRect.y = borderOutside.y + (totalLength/2) + dashRect.height;
|
|
if ((PR_TRUE==aBorderEdges->mOutsideEdge) && (0!=i))
|
|
dashRect.y -= topEdge->mWidth;
|
|
currRect = dashRect;
|
|
bSolid=PR_TRUE;
|
|
over = 0.0f;
|
|
while (currRect.YMost() < borderInside.YMost()) {
|
|
//clip if necessary
|
|
if (currRect.y < borderInside.y) {
|
|
over = float(borderInside.y - dashRect.y) /
|
|
float(dashRect.height);
|
|
currRect.height = currRect.height - (borderInside.y - currRect.y);
|
|
currRect.y = borderInside.y;
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.y = dashRect.y + currRect.height;
|
|
currRect = dashRect;
|
|
}
|
|
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NS_SIDE_BOTTOM:
|
|
{ // draw bottom segment i
|
|
if (0==x)
|
|
{
|
|
nsBorderEdge * leftEdge = (nsBorderEdge *)
|
|
(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(aBorderEdges->mEdges[NS_SIDE_LEFT].Count()-1));
|
|
x = aBorderEdges->mMaxBorderWidth.left - leftEdge->mWidth;
|
|
}
|
|
y = aBounds.y;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge) // segments of the outside edge are top-aligned
|
|
y -= aBorderEdges->mMaxBorderWidth.bottom - segment->mWidth;
|
|
nsRect borderOutside(x, y, segment->mLength, aBounds.height);
|
|
x += segment->mLength;
|
|
if ((style == NS_STYLE_BORDER_STYLE_DASHED) ||
|
|
(style == NS_STYLE_BORDER_STYLE_DOTTED))
|
|
{
|
|
nsRect borderInside(borderOutside);
|
|
nsBorderEdge * neighbor;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
neighbor = (nsBorderEdge *)(segment->mInsideNeighbor->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
else
|
|
neighbor = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
nsMargin outsideMargin(neighbor->mWidth, segment->mWidth, 0, segment->mWidth);
|
|
borderInside.Deflate(outsideMargin);
|
|
nscoord firstRectWidth = 0;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge && 0==i)
|
|
{
|
|
firstRectWidth = borderInside.x - borderOutside.x;
|
|
aContext.FillRect(borderOutside.x, borderInside.YMost(),
|
|
firstRectWidth,
|
|
borderOutside.YMost() - borderInside.YMost());
|
|
}
|
|
|
|
dashRect.height = borderOutside.YMost() - borderInside.YMost();
|
|
dashRect.width = nscoord(dashRect.height * dashLength);
|
|
dashRect.x = borderOutside.x + firstRectWidth;
|
|
dashRect.y = borderInside.YMost();
|
|
currRect = dashRect;
|
|
|
|
while (currRect.x < borderInside.XMost()) {
|
|
//clip if necessary
|
|
if (currRect.XMost() > borderInside.XMost()) {
|
|
over = float(dashRect.XMost() - borderInside.XMost()) /
|
|
float(dashRect.width);
|
|
currRect.width = currRect.width -
|
|
(currRect.XMost() - borderInside.XMost());
|
|
}
|
|
|
|
//draw if necessary
|
|
if (bSolid) {
|
|
aContext.FillRect(currRect);
|
|
}
|
|
|
|
//setup for next iteration
|
|
if (over == 0.0f) {
|
|
bSolid = PRBool(!bSolid);
|
|
}
|
|
dashRect.x = dashRect.x + currRect.width;
|
|
currRect = dashRect;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
skippedSide = PR_FALSE;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
nscolor
|
|
nsCSSRendering::TransformColor(nscolor aMapColor,PRBool aNoBackGround)
|
|
{
|
|
PRInt32 brightness;
|
|
nscolor newcolor;
|
|
|
|
newcolor = aMapColor;
|
|
if (PR_TRUE == aNoBackGround){
|
|
// convert the RBG to a brightness value (HSV scale)
|
|
brightness = NS_GetBrightness(NS_GET_R(aMapColor),NS_GET_G(aMapColor),NS_GET_B(aMapColor));
|
|
|
|
if(brightness > 64){
|
|
newcolor = NS_RGB(64,64,64);
|
|
}
|
|
}
|
|
|
|
return newcolor;
|
|
}
|
|
|
|
|
|
|
|
|
|
// method GetBGColorForHTMLElement
|
|
//
|
|
// Now here's a *fun* hack: Nav4 uses the BODY element's background color for the
|
|
// background color on tables so we need to find that element's
|
|
// color and use it... Actually, we can use the HTML element as well.
|
|
//
|
|
// Traverse from PresContext to PresShell to Document to RootContent. The RootContent is
|
|
// then checked to ensure that it is the HTML or BODY element, and if it is, we get
|
|
// it's primary frame and from that the style context and from that the color to use.
|
|
//
|
|
PRBool GetBGColorForHTMLElement( nsIPresContext *aPresContext,
|
|
const nsStyleBackground *&aBGColor )
|
|
{
|
|
NS_ASSERTION(aPresContext, "null params not allowed");
|
|
PRBool result = PR_FALSE; // assume we did not find the HTML element
|
|
|
|
nsIPresShell* shell = nsnull;
|
|
aPresContext->GetShell(&shell);
|
|
if (shell) {
|
|
nsIDocument *doc = nsnull;
|
|
if (NS_SUCCEEDED(shell->GetDocument(&doc)) && doc) {
|
|
nsIContent *pContent;
|
|
if (NS_SUCCEEDED(doc->GetRootContent(&pContent)) && pContent) {
|
|
// make sure that this is the HTML element
|
|
nsIAtom *tag = nsnull;
|
|
pContent->GetTag(tag);
|
|
NS_ASSERTION(tag, "Tag could not be retrieved from root content element");
|
|
if (tag) {
|
|
if (tag == nsHTMLAtoms::html ||
|
|
tag == nsHTMLAtoms::body) {
|
|
// use this guy's color
|
|
nsIFrame *pFrame = nsnull;
|
|
if (NS_SUCCEEDED(shell->GetPrimaryFrameFor(pContent, &pFrame)) && pFrame) {
|
|
nsIStyleContext *pContext = nsnull;
|
|
pFrame->GetStyleContext(&pContext);
|
|
if (pContext) {
|
|
const nsStyleBackground* color = (const nsStyleBackground*)pContext->GetStyleData(eStyleStruct_Background);
|
|
NS_ASSERTION(color,"ColorStyleData should not be null");
|
|
if (0 == (color->mBackgroundFlags & NS_STYLE_BG_COLOR_TRANSPARENT)) {
|
|
aBGColor = color;
|
|
// set the reslt to TRUE to indicate we mapped the color
|
|
result = PR_TRUE;
|
|
}
|
|
NS_RELEASE(pContext);
|
|
}// if context
|
|
}// if frame
|
|
}// if tag == html or body
|
|
#ifdef DEBUG
|
|
else {
|
|
printf( "Root Content is not HTML or BODY: cannot get bgColor of HTML or BODY\n");
|
|
}
|
|
#endif
|
|
NS_RELEASE(tag);
|
|
}// if tag
|
|
NS_RELEASE(pContent);
|
|
}// if content
|
|
NS_RELEASE(doc);
|
|
}// if doc
|
|
NS_RELEASE(shell);
|
|
} // if shell
|
|
|
|
return result;
|
|
}
|
|
|
|
// nethod GetFrameForBackgroundUpdate
|
|
//
|
|
// If the frame (aFrame) is the HTML or BODY frame then find the canvas frame and set the
|
|
// aBGFrame param to that. This is used when we need a frame to invalidate after an asynch
|
|
// image load for the background.
|
|
//
|
|
// The check is a bit expensive, however until the canvas frame is somehow cached on the
|
|
// body frame, or the root element, we need to walk the frames up until we find the canvas
|
|
//
|
|
nsresult GetFrameForBackgroundUpdate(nsIPresContext *aPresContext,nsIFrame *aFrame, nsIFrame **aBGFrame)
|
|
{
|
|
NS_ASSERTION(aFrame && aBGFrame, "illegal null parameter");
|
|
|
|
nsresult rv = NS_OK;
|
|
|
|
if (aFrame && aBGFrame) {
|
|
*aBGFrame = aFrame; // default to the frame passed in
|
|
|
|
nsCOMPtr<nsIContent> pContent;
|
|
aFrame->GetContent(getter_AddRefs(pContent));
|
|
if (pContent) {
|
|
// make sure that this is the HTML or BODY element
|
|
nsCOMPtr<nsIAtom> tag;
|
|
pContent->GetTag(*(getter_AddRefs(tag)));
|
|
if (tag) {
|
|
if (tag.get() == nsHTMLAtoms::html ||
|
|
tag.get() == nsHTMLAtoms::body) {
|
|
// the frame is the body frame, so we provide the canvas frame
|
|
nsIFrame *pCanvasFrame = nsnull;
|
|
aFrame->GetParent(&pCanvasFrame);
|
|
while (pCanvasFrame) {
|
|
nsCOMPtr<nsIAtom> parentType;
|
|
pCanvasFrame->GetFrameType(getter_AddRefs(parentType));
|
|
if (parentType.get() == nsLayoutAtoms::canvasFrame) {
|
|
*aBGFrame = pCanvasFrame;
|
|
break;
|
|
}
|
|
pCanvasFrame->GetParent(&pCanvasFrame);
|
|
}
|
|
}// if tag == html or body
|
|
}// if tag
|
|
}
|
|
} else {
|
|
rv = NS_ERROR_NULL_POINTER;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
// helper macro to determine if the borderstyle 'a' is a MOZ-BG-XXX style
|
|
#define MOZ_BG_BORDER(a)\
|
|
((a==NS_STYLE_BORDER_STYLE_BG_INSET) || (a==NS_STYLE_BORDER_STYLE_BG_OUTSET))
|
|
|
|
static
|
|
PRBool GetBorderColor(const nsStyleColor* aColor, const nsStyleBorder& aBorder, PRUint8 aSide, nscolor& aColorVal)
|
|
{
|
|
PRBool transparent;
|
|
PRBool foreground;
|
|
aBorder.GetBorderColor(aSide, aColorVal, transparent, foreground);
|
|
if (foreground)
|
|
aColorVal = aColor->mColor;
|
|
|
|
return !transparent;
|
|
}
|
|
|
|
// XXX improve this to constrain rendering to the damaged area
|
|
void nsCSSRendering::PaintBorder(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
const nsStyleBorder& aBorderStyle,
|
|
nsIStyleContext* aStyleContext,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap,
|
|
nscoord aHardBorderSize,
|
|
PRBool aShouldIgnoreRounded)
|
|
{
|
|
PRIntn cnt;
|
|
nsMargin border;
|
|
nsStyleCoord bordStyleRadius[4];
|
|
PRInt16 borderRadii[4],i;
|
|
float percent;
|
|
nsCompatibility compatMode;
|
|
aPresContext->GetCompatibilityMode(&compatMode);
|
|
|
|
// Get our style context's color struct.
|
|
const nsStyleColor* ourColor = (const nsStyleColor*)aStyleContext->GetStyleData(eStyleStruct_Color);
|
|
|
|
// Get our style context's background struct.
|
|
const nsStyleBackground* ourBG = (const nsStyleBackground*)aStyleContext->GetStyleData(eStyleStruct_Background);
|
|
|
|
// in NavQuirks mode we want to use the parent's context as a starting point
|
|
// for determining the background color
|
|
const nsStyleBackground* bgColor =
|
|
nsStyleUtil::FindNonTransparentBackground(aStyleContext,
|
|
compatMode == eCompatibility_NavQuirks ? PR_TRUE : PR_FALSE);
|
|
// mozBGColor is used instead of bgColor when the display type is BG_INSET or BG_OUTSET
|
|
// AND, in quirk mode, it is set to the BODY element's background color instead of the nearest
|
|
// ancestor's background color.
|
|
const nsStyleBackground* mozBGColor = bgColor;
|
|
|
|
// now check if we are in Quirks mode and have a border style of BG_INSET or OUTSET
|
|
// - if so we use the bgColor from the HTML element instead of the nearest ancestor
|
|
if (compatMode == eCompatibility_NavQuirks) {
|
|
PRBool bNeedBodyBGColor = PR_FALSE;
|
|
if (aStyleContext) {
|
|
for (cnt=0; cnt<4;cnt++) {
|
|
bNeedBodyBGColor = MOZ_BG_BORDER(aBorderStyle.GetBorderStyle(cnt));
|
|
if (bNeedBodyBGColor) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (bNeedBodyBGColor) {
|
|
GetBGColorForHTMLElement(aPresContext, mozBGColor);
|
|
}
|
|
}
|
|
|
|
if (aHardBorderSize > 0) {
|
|
border.SizeTo(aHardBorderSize, aHardBorderSize, aHardBorderSize, aHardBorderSize);
|
|
} else {
|
|
aBorderStyle.CalcBorderFor(aForFrame, border);
|
|
}
|
|
if ((0 == border.left) && (0 == border.right) &&
|
|
(0 == border.top) && (0 == border.bottom)) {
|
|
// Empty border area
|
|
return;
|
|
}
|
|
|
|
|
|
// get the radius for our border
|
|
aBorderStyle.mBorderRadius.GetTop(bordStyleRadius[0]); //topleft
|
|
aBorderStyle.mBorderRadius.GetRight(bordStyleRadius[1]); //topright
|
|
aBorderStyle.mBorderRadius.GetBottom(bordStyleRadius[2]); //bottomright
|
|
aBorderStyle.mBorderRadius.GetLeft(bordStyleRadius[3]); //bottomleft
|
|
|
|
for(i=0;i<4;i++) {
|
|
borderRadii[i] = 0;
|
|
switch ( bordStyleRadius[i].GetUnit()) {
|
|
case eStyleUnit_Inherit:
|
|
break;
|
|
case eStyleUnit_Percent:
|
|
percent = bordStyleRadius[i].GetPercentValue();
|
|
borderRadii[i] = (nscoord)(percent * aBorderArea.width);
|
|
break;
|
|
case eStyleUnit_Coord:
|
|
borderRadii[i] = bordStyleRadius[i].GetCoordValue();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
// rounded version of the outline
|
|
// check for any corner that is rounded
|
|
for(i=0;i<4;i++){
|
|
if(borderRadii[i] > 0){
|
|
PaintRoundedBorder(aPresContext,aRenderingContext,aForFrame,aDirtyRect,aBorderArea,&aBorderStyle,nsnull,aStyleContext,aSkipSides,borderRadii,aGap,PR_FALSE);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Turn off rendering for all of the zero sized sides
|
|
if (0 == border.top) aSkipSides |= (1 << NS_SIDE_TOP);
|
|
if (0 == border.right) aSkipSides |= (1 << NS_SIDE_RIGHT);
|
|
if (0 == border.bottom) aSkipSides |= (1 << NS_SIDE_BOTTOM);
|
|
if (0 == border.left) aSkipSides |= (1 << NS_SIDE_LEFT);
|
|
|
|
// get the inside and outside parts of the border
|
|
nsRect outerRect(aBorderArea);
|
|
nsRect innerRect(outerRect);
|
|
innerRect.Deflate(border);
|
|
|
|
if (border.left + border.right > aBorderArea.width) {
|
|
innerRect.x = outerRect.x;
|
|
innerRect.width = outerRect.width;
|
|
}
|
|
if (border.top + border.bottom > aBorderArea.height) {
|
|
innerRect.y = outerRect.y;
|
|
innerRect.height = outerRect.height;
|
|
}
|
|
|
|
|
|
|
|
// If the dirty rect is completely inside the border area (e.g., only the
|
|
// content is being painted), then we can skip out now
|
|
if (innerRect.Contains(aDirtyRect)) {
|
|
return;
|
|
}
|
|
|
|
//see if any sides are dotted or dashed
|
|
for (cnt = 0; cnt < 4; cnt++) {
|
|
if ((aBorderStyle.GetBorderStyle(cnt) == NS_STYLE_BORDER_STYLE_DOTTED) ||
|
|
(aBorderStyle.GetBorderStyle(cnt) == NS_STYLE_BORDER_STYLE_DASHED)) {
|
|
break;
|
|
}
|
|
}
|
|
if (cnt < 4) {
|
|
DrawDashedSides(cnt, aRenderingContext,aDirtyRect, ourColor, &aBorderStyle,nsnull, PR_FALSE,
|
|
outerRect, innerRect, aSkipSides, aGap);
|
|
}
|
|
|
|
// Draw all the other sides
|
|
|
|
/* Get our conversion values */
|
|
nscoord twipsPerPixel;
|
|
float p2t;
|
|
aPresContext->GetScaledPixelsToTwips(&p2t);
|
|
twipsPerPixel = NSIntPixelsToTwips(1,p2t);
|
|
|
|
|
|
nscolor sideColor;
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_BOTTOM))) {
|
|
if (GetBorderColor(ourColor, aBorderStyle, NS_SIDE_BOTTOM, sideColor)) {
|
|
DrawSide(aRenderingContext, NS_SIDE_BOTTOM,
|
|
aBorderStyle.GetBorderStyle(NS_SIDE_BOTTOM),
|
|
sideColor,
|
|
MOZ_BG_BORDER(aBorderStyle.GetBorderStyle(NS_SIDE_BOTTOM)) ?
|
|
mozBGColor->mBackgroundColor :
|
|
bgColor->mBackgroundColor,
|
|
outerRect,innerRect, aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_LEFT))) {
|
|
if (GetBorderColor(ourColor, aBorderStyle, NS_SIDE_LEFT, sideColor)) {
|
|
DrawSide(aRenderingContext, NS_SIDE_LEFT,
|
|
aBorderStyle.GetBorderStyle(NS_SIDE_LEFT),
|
|
sideColor,
|
|
MOZ_BG_BORDER(aBorderStyle.GetBorderStyle(NS_SIDE_LEFT)) ?
|
|
mozBGColor->mBackgroundColor :
|
|
bgColor->mBackgroundColor,
|
|
outerRect, innerRect,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_TOP))) {
|
|
if (GetBorderColor(ourColor, aBorderStyle, NS_SIDE_TOP, sideColor)) {
|
|
DrawSide(aRenderingContext, NS_SIDE_TOP,
|
|
aBorderStyle.GetBorderStyle(NS_SIDE_TOP),
|
|
sideColor,
|
|
MOZ_BG_BORDER(aBorderStyle.GetBorderStyle(NS_SIDE_TOP)) ?
|
|
mozBGColor->mBackgroundColor :
|
|
bgColor->mBackgroundColor,
|
|
outerRect, innerRect,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_RIGHT))) {
|
|
if (GetBorderColor(ourColor, aBorderStyle, NS_SIDE_RIGHT, sideColor)) {
|
|
DrawSide(aRenderingContext, NS_SIDE_RIGHT,
|
|
aBorderStyle.GetBorderStyle(NS_SIDE_RIGHT),
|
|
sideColor,
|
|
MOZ_BG_BORDER(aBorderStyle.GetBorderStyle(NS_SIDE_RIGHT)) ?
|
|
mozBGColor->mBackgroundColor :
|
|
bgColor->mBackgroundColor,
|
|
outerRect, innerRect,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
}
|
|
|
|
// XXX improve this to constrain rendering to the damaged area
|
|
void nsCSSRendering::PaintOutline(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
const nsStyleBorder& aBorderStyle,
|
|
const nsStyleOutline& aOutlineStyle,
|
|
nsIStyleContext* aStyleContext,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap)
|
|
{
|
|
nsStyleCoord bordStyleRadius[4];
|
|
PRInt16 borderRadii[4],i;
|
|
float percent;
|
|
const nsStyleBackground* bgColor = nsStyleUtil::FindNonTransparentBackground(aStyleContext);
|
|
nscoord width;
|
|
|
|
// Get our style context's color struct.
|
|
const nsStyleColor* ourColor = (const nsStyleColor*)aStyleContext->GetStyleData(eStyleStruct_Color);
|
|
|
|
aOutlineStyle.GetOutlineWidth(width);
|
|
|
|
if (0 == width) {
|
|
// Empty outline
|
|
return;
|
|
}
|
|
|
|
// get the radius for our border
|
|
aOutlineStyle.mOutlineRadius.GetTop(bordStyleRadius[0]); //topleft
|
|
aOutlineStyle.mOutlineRadius.GetRight(bordStyleRadius[1]); //topright
|
|
aOutlineStyle.mOutlineRadius.GetBottom(bordStyleRadius[2]); //bottomright
|
|
aOutlineStyle.mOutlineRadius.GetLeft(bordStyleRadius[3]); //bottomleft
|
|
|
|
for(i=0;i<4;i++) {
|
|
borderRadii[i] = 0;
|
|
switch ( bordStyleRadius[i].GetUnit()) {
|
|
case eStyleUnit_Inherit:
|
|
break;
|
|
case eStyleUnit_Percent:
|
|
percent = bordStyleRadius[i].GetPercentValue();
|
|
borderRadii[i] = (nscoord)(percent * aBorderArea.width);
|
|
break;
|
|
case eStyleUnit_Coord:
|
|
borderRadii[i] = bordStyleRadius[i].GetCoordValue();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
// This if control whether the outline paints on the inside
|
|
// or outside of the frame
|
|
// XXX This is temporary fix for nsbeta3+ Bug 48973
|
|
// so we can use "mozoutline
|
|
#if 0 // outside
|
|
nsRect inside(aBorderArea);
|
|
nsRect outside(inside);
|
|
inside.Inflate(width, width);
|
|
|
|
nsRect clipRect(aBorderArea);
|
|
clipRect.Inflate(width, width); // make clip extra big for now
|
|
|
|
#else // inside
|
|
nsMargin borderWidth;
|
|
aBorderStyle.GetBorder(borderWidth);
|
|
|
|
nsRect outside(aBorderArea);
|
|
outside.Deflate(borderWidth);
|
|
nsRect inside(outside);
|
|
inside.Deflate(width, width);
|
|
|
|
nsRect clipRect(outside);
|
|
#endif
|
|
|
|
PRBool clipState = PR_FALSE;
|
|
aRenderingContext.PushState();
|
|
aRenderingContext.SetClipRect(clipRect, nsClipCombine_kReplace, clipState);
|
|
|
|
// rounded version of the border
|
|
for(i=0;i<4;i++){
|
|
if(borderRadii[i] > 0){
|
|
PaintRoundedBorder(aPresContext,aRenderingContext,aForFrame,aDirtyRect,aBorderArea,nsnull,&aOutlineStyle,aStyleContext,aSkipSides,borderRadii,aGap,PR_TRUE);
|
|
aRenderingContext.PopState(clipState);
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
PRUint8 outlineStyle = aOutlineStyle.GetOutlineStyle();
|
|
//see if any sides are dotted or dashed
|
|
if ((outlineStyle == NS_STYLE_BORDER_STYLE_DOTTED) ||
|
|
(outlineStyle == NS_STYLE_BORDER_STYLE_DASHED)) {
|
|
DrawDashedSides(0, aRenderingContext, aDirtyRect, ourColor, nsnull, &aOutlineStyle, PR_TRUE,
|
|
outside, inside, aSkipSides, aGap);
|
|
aRenderingContext.PopState(clipState);
|
|
return;
|
|
}
|
|
|
|
// Draw all the other sides
|
|
|
|
/* XXX something is misnamed here!!!! */
|
|
nscoord twipsPerPixel;/* XXX */
|
|
float p2t;/* XXX */
|
|
aPresContext->GetPixelsToTwips(&p2t);/* XXX */
|
|
twipsPerPixel = (nscoord) p2t;/* XXX */
|
|
|
|
nscolor outlineColor(NS_RGB(0,0,0)); // default to black in case it is invert color and the platform does not support that
|
|
PRBool canDraw = PR_FALSE;
|
|
PRBool modeChanged=PR_FALSE;
|
|
|
|
// see if the outline color is 'invert' or can invert.
|
|
if (aOutlineStyle.GetOutlineInvert()) {
|
|
canDraw = PR_TRUE;
|
|
if( NS_SUCCEEDED(aRenderingContext.SetPenMode(nsPenMode_kInvert)) ) {
|
|
modeChanged=PR_TRUE;
|
|
}
|
|
} else {
|
|
canDraw = aOutlineStyle.GetOutlineColor(outlineColor);
|
|
}
|
|
|
|
if (PR_TRUE == canDraw) {
|
|
DrawSide(aRenderingContext, NS_SIDE_BOTTOM,
|
|
outlineStyle,
|
|
outlineColor,
|
|
bgColor->mBackgroundColor, outside, inside, aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
|
|
DrawSide(aRenderingContext, NS_SIDE_LEFT,
|
|
outlineStyle,
|
|
outlineColor,
|
|
bgColor->mBackgroundColor,outside, inside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
|
|
DrawSide(aRenderingContext, NS_SIDE_TOP,
|
|
outlineStyle,
|
|
outlineColor,
|
|
bgColor->mBackgroundColor,outside, inside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
|
|
DrawSide(aRenderingContext, NS_SIDE_RIGHT,
|
|
outlineStyle,
|
|
outlineColor,
|
|
bgColor->mBackgroundColor,outside, inside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
|
|
if(modeChanged ) {
|
|
aRenderingContext.SetPenMode(nsPenMode_kNone);
|
|
}
|
|
}
|
|
// Restore clipping
|
|
aRenderingContext.PopState(clipState);
|
|
}
|
|
|
|
/* draw the edges of the border described in aBorderEdges one segment at a time.
|
|
* a border has 4 edges. Each edge has 1 or more segments.
|
|
* "inside edges" are drawn differently than "outside edges" so the shared edges will match up.
|
|
* in the case of table collapsing borders, the table edge is the "outside" edge and
|
|
* cell edges are always "inside" edges (so adjacent cells have 2 shared "inside" edges.)
|
|
* dashed segments are drawn by DrawDashedSegments().
|
|
*/
|
|
// XXX: doesn't do corners or junctions well at all. Just uses logic stolen
|
|
// from PaintBorder which is insufficient
|
|
|
|
void nsCSSRendering::PaintBorderEdges(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
nsBorderEdges * aBorderEdges,
|
|
nsIStyleContext* aStyleContext,
|
|
PRIntn aSkipSides,
|
|
nsRect* aGap)
|
|
{
|
|
const nsStyleBackground* bgColor = nsStyleUtil::FindNonTransparentBackground(aStyleContext);
|
|
|
|
if (nsnull==aBorderEdges) { // Empty border segments
|
|
return;
|
|
}
|
|
|
|
// Turn off rendering for all of the zero sized sides
|
|
if (0 == aBorderEdges->mMaxBorderWidth.top)
|
|
aSkipSides |= (1 << NS_SIDE_TOP);
|
|
if (0 == aBorderEdges->mMaxBorderWidth.right)
|
|
aSkipSides |= (1 << NS_SIDE_RIGHT);
|
|
if (0 == aBorderEdges->mMaxBorderWidth.bottom)
|
|
aSkipSides |= (1 << NS_SIDE_BOTTOM);
|
|
if (0 == aBorderEdges->mMaxBorderWidth.left)
|
|
aSkipSides |= (1 << NS_SIDE_LEFT);
|
|
|
|
// Draw any dashed or dotted segments separately
|
|
DrawDashedSegments(aRenderingContext, aBorderArea, aBorderEdges, aSkipSides, aGap);
|
|
|
|
// Draw all the other sides
|
|
nscoord twipsPerPixel;
|
|
float p2t;
|
|
aPresContext->GetPixelsToTwips(&p2t);
|
|
twipsPerPixel = (nscoord) p2t;/* XXX huh!*/
|
|
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_TOP))) {
|
|
PRInt32 segmentCount = aBorderEdges->mEdges[NS_SIDE_TOP].Count();
|
|
PRInt32 i;
|
|
nsBorderEdge * leftEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(0));
|
|
nscoord x = aBorderEdges->mMaxBorderWidth.left - leftEdge->mWidth;
|
|
for (i=0; i<segmentCount; i++)
|
|
{
|
|
nsBorderEdge * borderEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_TOP].ElementAt(i));
|
|
nscoord y = aBorderArea.y;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge) // segments of the outside edge are bottom-aligned
|
|
y += aBorderEdges->mMaxBorderWidth.top - borderEdge->mWidth;
|
|
nsRect inside(x, y, borderEdge->mLength, aBorderArea.height);
|
|
x += borderEdge->mLength;
|
|
nsRect outside(inside);
|
|
nsMargin outsideMargin(0, borderEdge->mWidth, 0, 0);
|
|
outside.Deflate(outsideMargin);
|
|
DrawSide(aRenderingContext, NS_SIDE_TOP,
|
|
borderEdge->mStyle,
|
|
borderEdge->mColor,
|
|
bgColor->mBackgroundColor,
|
|
inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_LEFT))) {
|
|
PRInt32 segmentCount = aBorderEdges->mEdges[NS_SIDE_LEFT].Count();
|
|
PRInt32 i;
|
|
nsBorderEdge * topEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_TOP].ElementAt(0));
|
|
nscoord y = aBorderEdges->mMaxBorderWidth.top - topEdge->mWidth;
|
|
for (i=0; i<segmentCount; i++)
|
|
{
|
|
nsBorderEdge * borderEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(i));
|
|
nscoord x = aBorderArea.x + (aBorderEdges->mMaxBorderWidth.left - borderEdge->mWidth);
|
|
nsRect inside(x, y, aBorderArea.width, borderEdge->mLength);
|
|
y += borderEdge->mLength;
|
|
nsRect outside(inside);
|
|
nsMargin outsideMargin(borderEdge->mWidth, 0, 0, 0);
|
|
outside.Deflate(outsideMargin);
|
|
DrawSide(aRenderingContext, NS_SIDE_LEFT,
|
|
borderEdge->mStyle,
|
|
borderEdge->mColor,
|
|
bgColor->mBackgroundColor,
|
|
inside, outside, aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_BOTTOM))) {
|
|
PRInt32 segmentCount = aBorderEdges->mEdges[NS_SIDE_BOTTOM].Count();
|
|
PRInt32 i;
|
|
nsBorderEdge * leftEdge = (nsBorderEdge *)
|
|
(aBorderEdges->mEdges[NS_SIDE_LEFT].ElementAt(aBorderEdges->mEdges[NS_SIDE_LEFT].Count()-1));
|
|
nscoord x = aBorderEdges->mMaxBorderWidth.left - leftEdge->mWidth;
|
|
for (i=0; i<segmentCount; i++)
|
|
{
|
|
nsBorderEdge * borderEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_BOTTOM].ElementAt(i));
|
|
nscoord y = aBorderArea.y;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge) // segments of the outside edge are top-aligned
|
|
y -= (aBorderEdges->mMaxBorderWidth.bottom - borderEdge->mWidth);
|
|
nsRect inside(x, y, borderEdge->mLength, aBorderArea.height);
|
|
x += borderEdge->mLength;
|
|
nsRect outside(inside);
|
|
nsMargin outsideMargin(0, 0, 0, borderEdge->mWidth);
|
|
outside.Deflate(outsideMargin);
|
|
DrawSide(aRenderingContext, NS_SIDE_BOTTOM,
|
|
borderEdge->mStyle,
|
|
borderEdge->mColor,
|
|
bgColor->mBackgroundColor,
|
|
inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
if (0 == (aSkipSides & (1<<NS_SIDE_RIGHT))) {
|
|
PRInt32 segmentCount = aBorderEdges->mEdges[NS_SIDE_RIGHT].Count();
|
|
PRInt32 i;
|
|
nsBorderEdge * topEdge = (nsBorderEdge *)
|
|
(aBorderEdges->mEdges[NS_SIDE_TOP].ElementAt(aBorderEdges->mEdges[NS_SIDE_TOP].Count()-1));
|
|
nscoord y = aBorderEdges->mMaxBorderWidth.top - topEdge->mWidth;
|
|
for (i=0; i<segmentCount; i++)
|
|
{
|
|
nsBorderEdge * borderEdge = (nsBorderEdge *)(aBorderEdges->mEdges[NS_SIDE_RIGHT].ElementAt(i));
|
|
nscoord width;
|
|
if (PR_TRUE==aBorderEdges->mOutsideEdge)
|
|
{
|
|
width = aBorderArea.width - aBorderEdges->mMaxBorderWidth.right;
|
|
width += borderEdge->mWidth;
|
|
}
|
|
else
|
|
{
|
|
width = aBorderArea.width;
|
|
}
|
|
nsRect inside(aBorderArea.x, y, width, borderEdge->mLength);
|
|
y += borderEdge->mLength;
|
|
nsRect outside(inside);
|
|
nsMargin outsideMargin(0, 0, (borderEdge->mWidth), 0);
|
|
outside.Deflate(outsideMargin);
|
|
DrawSide(aRenderingContext, NS_SIDE_RIGHT,
|
|
borderEdge->mStyle,
|
|
borderEdge->mColor,
|
|
bgColor->mBackgroundColor,
|
|
inside, outside,aSkipSides,
|
|
twipsPerPixel, aGap);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
// Returns the anchor point to use for the background image. The
|
|
// anchor point is the (x, y) location where the first tile should
|
|
// be placed
|
|
//
|
|
// For repeated tiling, the anchor values are normalized wrt to the upper-left
|
|
// edge of the bounds, and are always in the range:
|
|
// -(aTileWidth - 1) <= anchor.x <= 0
|
|
// -(aTileHeight - 1) <= anchor.y <= 0
|
|
//
|
|
// i.e., they are either 0 or a negative number whose absolute value is
|
|
// less than the tile size in that dimension
|
|
//
|
|
// aRelativeBounds is the box to which the tiling position should be relative,
|
|
// aTilingBounds is the box in which the tiling will actually be done. They
|
|
// should be identical except when painting on the canvas, in which case the
|
|
// relative bounds should be the bounds of the root element's frame and the
|
|
// tiling bounds should be the bounds of the canvas frame.
|
|
static void
|
|
ComputeBackgroundAnchorPoint(const nsStyleBackground& aColor,
|
|
const nsRect& aRelativeBounds, const nsRect& aTilingBounds,
|
|
nscoord aTileWidth, nscoord aTileHeight,
|
|
nsPoint& aResult)
|
|
{
|
|
nscoord x;
|
|
if (NS_STYLE_BG_X_POSITION_LENGTH & aColor.mBackgroundFlags) {
|
|
x = aColor.mBackgroundXPosition;
|
|
}
|
|
else {
|
|
nscoord t = aColor.mBackgroundXPosition;
|
|
float pct = float(t) / 100.0f;
|
|
nscoord tilePos = nscoord(pct * aTileWidth);
|
|
nscoord boxPos = nscoord(pct * aRelativeBounds.width);
|
|
x = boxPos - tilePos;
|
|
}
|
|
x += aRelativeBounds.x - aTilingBounds.x;
|
|
if (NS_STYLE_BG_REPEAT_X & aColor.mBackgroundRepeat) {
|
|
// When we are tiling in the x direction the loop will run from
|
|
// the left edge of the box to the right edge of the box. We need
|
|
// to adjust the starting coordinate to lie within the band being
|
|
// rendered.
|
|
if (x < 0) {
|
|
x = -x;
|
|
if (x < 0) {
|
|
// Some joker gave us max-negative-integer.
|
|
x = 0;
|
|
}
|
|
x %= aTileWidth;
|
|
x = -x;
|
|
}
|
|
else if (x != 0) {
|
|
x %= aTileWidth;
|
|
if (x > 0) {
|
|
x = x - aTileWidth;
|
|
}
|
|
}
|
|
|
|
NS_POSTCONDITION((x >= -(aTileWidth - 1)) && (x <= 0), "bad computed anchor value");
|
|
}
|
|
aResult.x = x;
|
|
|
|
nscoord y;
|
|
if (NS_STYLE_BG_Y_POSITION_LENGTH & aColor.mBackgroundFlags) {
|
|
y = aColor.mBackgroundYPosition;
|
|
}
|
|
else {
|
|
nscoord t = aColor.mBackgroundYPosition;
|
|
float pct = float(t) / 100.0f;
|
|
nscoord tilePos = nscoord(pct * aTileHeight);
|
|
nscoord boxPos = nscoord(pct * aRelativeBounds.height);
|
|
y = boxPos - tilePos;
|
|
}
|
|
y += aRelativeBounds.y - aTilingBounds.y;
|
|
if (NS_STYLE_BG_REPEAT_Y & aColor.mBackgroundRepeat) {
|
|
// When we are tiling in the y direction the loop will run from
|
|
// the top edge of the box to the bottom edge of the box. We need
|
|
// to adjust the starting coordinate to lie within the band being
|
|
// rendered.
|
|
if (y < 0) {
|
|
y = -y;
|
|
if (y < 0) {
|
|
// Some joker gave us max-negative-integer.
|
|
y = 0;
|
|
}
|
|
y %= aTileHeight;
|
|
y = -y;
|
|
}
|
|
else if (y != 0) {
|
|
y %= aTileHeight;
|
|
if (y > 0) {
|
|
y = y - aTileHeight;
|
|
}
|
|
}
|
|
|
|
NS_POSTCONDITION((y >= -(aTileHeight - 1)) && (y <= 0), "bad computed anchor value");
|
|
}
|
|
aResult.y = y;
|
|
}
|
|
|
|
// Returns the nearest scroll frame ancestor
|
|
static nsIFrame*
|
|
GetNearestScrollFrame(nsIFrame* aFrame)
|
|
{
|
|
for (nsIFrame* f = aFrame; f; f->GetParent(&f)) {
|
|
nsIAtom* frameType;
|
|
|
|
// Is it a scroll frame?
|
|
f->GetFrameType(&frameType);
|
|
if (nsLayoutAtoms::scrollFrame == frameType) {
|
|
NS_RELEASE(frameType);
|
|
return f;
|
|
}
|
|
|
|
NS_IF_RELEASE(frameType);
|
|
}
|
|
|
|
return nsnull;
|
|
}
|
|
|
|
void
|
|
nsCSSRendering::PaintBackground(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
const nsStyleBackground& aColor,
|
|
const nsStyleBorder& aBorder,
|
|
nscoord aDX,
|
|
nscoord aDY)
|
|
{
|
|
NS_ASSERTION(aForFrame, "Frame is expected to be provided to PaintBackground");
|
|
|
|
// consider it transparent if transparent is set, or if it is propagated to the parent
|
|
PRBool transparentBG =
|
|
(NS_STYLE_BG_COLOR_TRANSPARENT == (aColor.mBackgroundFlags & NS_STYLE_BG_COLOR_TRANSPARENT)) ||
|
|
(aColor.mBackgroundFlags & NS_STYLE_BG_PROPAGATED_TO_PARENT);
|
|
float percent;
|
|
nsStyleCoord bordStyleRadius[4];
|
|
PRInt16 borderRadii[4],i;
|
|
|
|
|
|
// if there is no background image, try a color.
|
|
if (aColor.mBackgroundImage.IsEmpty()) {
|
|
// See if there's a background color specified. The background color
|
|
// is rendered over the 'border' 'padding' and 'content' areas
|
|
if (!transparentBG) {
|
|
// get the radius for our border
|
|
aBorder.mBorderRadius.GetTop(bordStyleRadius[0]); //topleft
|
|
aBorder.mBorderRadius.GetRight(bordStyleRadius[1]); //topright
|
|
aBorder.mBorderRadius.GetBottom(bordStyleRadius[2]); //bottomright
|
|
aBorder.mBorderRadius.GetLeft(bordStyleRadius[3]); //bottomleft
|
|
|
|
for(i=0;i<4;i++) {
|
|
borderRadii[i] = 0;
|
|
switch ( bordStyleRadius[i].GetUnit()) {
|
|
case eStyleUnit_Inherit:
|
|
break;
|
|
case eStyleUnit_Percent:
|
|
percent = bordStyleRadius[i].GetPercentValue();
|
|
borderRadii[i] = (nscoord)(percent * aBorderArea.width);
|
|
break;
|
|
case eStyleUnit_Coord:
|
|
borderRadii[i] = bordStyleRadius[i].GetCoordValue();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
// rounded version of the border
|
|
for(i=0;i<4;i++){
|
|
if (borderRadii[i] > 0){
|
|
PaintRoundedBackground(aPresContext,aRenderingContext,aForFrame,aDirtyRect,
|
|
aBorderArea,aColor,aDX,aDY,borderRadii);
|
|
return;
|
|
}
|
|
}
|
|
|
|
aRenderingContext.SetColor(aColor.mBackgroundColor);
|
|
aRenderingContext.FillRect(aBorderArea);
|
|
}
|
|
} else {
|
|
// we have a background image
|
|
|
|
|
|
// get the frame for the background image load to complete in
|
|
// - this may be different than the frame we are rendering
|
|
// (as in the case of the canvas frame)
|
|
nsIFrame *pBGFrame = nsnull;
|
|
GetFrameForBackgroundUpdate(aPresContext, aForFrame, &pBGFrame);
|
|
NS_ASSERTION(pBGFrame, "Background Frame must be set by GetFrameForBackgroundUpdate");
|
|
|
|
// Lookup the image
|
|
nsCOMPtr<imgIRequest> req;
|
|
nsresult rv = aPresContext->LoadImage(aColor.mBackgroundImage, pBGFrame, getter_AddRefs(req));
|
|
|
|
PRUint32 status = imgIRequest::STATUS_ERROR;
|
|
if (req)
|
|
req->GetImageStatus(&status);
|
|
|
|
if (NS_FAILED(rv) || !req || !(status & imgIRequest::STATUS_SIZE_AVAILABLE)) {
|
|
if (!transparentBG) {
|
|
// The background color is rendered over the 'border' 'padding' and
|
|
// 'content' areas
|
|
aRenderingContext.SetColor(aColor.mBackgroundColor);
|
|
aRenderingContext.FillRect(aBorderArea);
|
|
}
|
|
return;
|
|
}
|
|
|
|
nsSize imageSize;
|
|
nsCOMPtr<imgIContainer> image;
|
|
req->GetImage(getter_AddRefs(image));
|
|
|
|
image->GetWidth(&imageSize.width);
|
|
image->GetHeight(&imageSize.height);
|
|
|
|
float p2t;
|
|
aPresContext->GetPixelsToTwips(&p2t);
|
|
imageSize.width = NSIntPixelsToTwips(imageSize.width, p2t);
|
|
imageSize.height = NSIntPixelsToTwips(imageSize.height, p2t);
|
|
|
|
req = nsnull;
|
|
|
|
// Background images are tiled over the 'content' and 'padding' areas
|
|
// only (not the 'border' area)
|
|
nsRect paddingArea(aBorderArea);
|
|
nsMargin border;
|
|
|
|
if (!aBorder.GetBorder(border)) {
|
|
NS_NOTYETIMPLEMENTED("percentage border");
|
|
}
|
|
paddingArea.Deflate(border);
|
|
|
|
// The actual dirty rect is the intersection of the padding area and the
|
|
// dirty rect we were given
|
|
nsRect dirtyRect;
|
|
|
|
if (!dirtyRect.IntersectRect(paddingArea, aDirtyRect)) {
|
|
// Nothing to paint
|
|
return;
|
|
}
|
|
|
|
// Based on the repeat setting, compute how many tiles we should
|
|
// lay down for each axis. The value computed is the maximum based
|
|
// on the dirty rect before accounting for the background-position.
|
|
nscoord tileWidth = imageSize.width;
|
|
nscoord tileHeight = imageSize.height;
|
|
PRBool needBackgroundColor = PR_TRUE;
|
|
PRIntn repeat = aColor.mBackgroundRepeat;
|
|
nscoord xDistance, yDistance;
|
|
PRBool needBackgroundOnContinuation = PR_FALSE; // set to true if repeat-y value is set
|
|
|
|
switch (repeat) {
|
|
case NS_STYLE_BG_REPEAT_OFF:
|
|
default:
|
|
xDistance = tileWidth;
|
|
yDistance = tileHeight;
|
|
break;
|
|
case NS_STYLE_BG_REPEAT_X:
|
|
xDistance = dirtyRect.width;
|
|
yDistance = tileHeight;
|
|
break;
|
|
case NS_STYLE_BG_REPEAT_Y:
|
|
xDistance = tileWidth;
|
|
yDistance = dirtyRect.height;
|
|
needBackgroundOnContinuation = PR_TRUE;
|
|
break;
|
|
case NS_STYLE_BG_REPEAT_XY:
|
|
xDistance = dirtyRect.width;
|
|
yDistance = dirtyRect.height;
|
|
needBackgroundOnContinuation = PR_TRUE;
|
|
// We need to render the background color if the image is transparent
|
|
//needBackgroundColor = image->GetHasAlphaMask();
|
|
break;
|
|
}
|
|
|
|
// The background color is rendered over the 'border' 'padding' and
|
|
// 'content' areas
|
|
if (!transparentBG && needBackgroundColor) {
|
|
aRenderingContext.SetColor(aColor.mBackgroundColor);
|
|
aRenderingContext.FillRect(aBorderArea);
|
|
}
|
|
|
|
// See if there's nothing left to do
|
|
if ((tileWidth == 0) || (tileHeight == 0) || dirtyRect.IsEmpty()) {
|
|
// Nothing to paint
|
|
return;
|
|
}
|
|
|
|
// if the frame is a continuation frame, check if we need to draw the image for it
|
|
// (continuation with no repeat setting in the Y direction do not get background images)
|
|
if (aForFrame) {
|
|
nsIFrame *prevInFlowFrame = nsnull;
|
|
aForFrame->GetPrevInFlow(&prevInFlowFrame);
|
|
if (prevInFlowFrame != nsnull) {
|
|
if (!needBackgroundOnContinuation) {
|
|
// the frame is a continuation, and we do not want the background image repeated
|
|
// in the Y direction (needBackgroundOnContinuation == PR_FALSE) so just bail
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// Compute the anchor point.
|
|
//
|
|
// When tiling, the anchor coordinate values will be negative offsets
|
|
// from the padding area
|
|
|
|
nsPoint anchor;
|
|
if (NS_STYLE_BG_ATTACHMENT_FIXED == aColor.mBackgroundAttachment) {
|
|
// If it's a fixed background attachment, then the image is placed
|
|
// relative to the nearest scrolling ancestor, or the viewport if
|
|
// the frame doesn't have a scrolling ancestor
|
|
nsIFrame* scrolledFrame = nsnull;
|
|
nsIView* viewportView = nsnull;
|
|
nsRect viewportArea;
|
|
|
|
// get the nsIScrollableFrame interface from the scrollFrame
|
|
nsIFrame* scrollFrame = GetNearestScrollFrame(aForFrame);
|
|
if (scrollFrame) {
|
|
nsCOMPtr<nsIScrollableFrame> scrollableFrame(do_QueryInterface(scrollFrame));
|
|
if (scrollableFrame) {
|
|
scrollableFrame->GetScrolledFrame(aPresContext, scrolledFrame);
|
|
if (scrolledFrame) {
|
|
scrolledFrame->GetRect(viewportArea);
|
|
scrolledFrame->GetView(aPresContext, &viewportView);
|
|
}
|
|
}
|
|
}
|
|
if (!scrolledFrame) {
|
|
// The viewport isn't scrollable, so use the root frame's view
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
aPresContext->GetShell(getter_AddRefs(presShell));
|
|
NS_ASSERTION(presShell, "no pres shell");
|
|
|
|
nsIFrame* rootFrame;
|
|
presShell->GetRootFrame(&rootFrame);
|
|
NS_ASSERTION(rootFrame, "no root frame");
|
|
|
|
rootFrame->GetView(aPresContext, &viewportView);
|
|
NS_ASSERTION(viewportView, "no viewport view");
|
|
viewportArea.x = 0;
|
|
viewportArea.y = 0;
|
|
viewportView->GetDimensions(&viewportArea.width, &viewportArea.height);
|
|
}
|
|
|
|
// Get the anchor point
|
|
ComputeBackgroundAnchorPoint(aColor, viewportArea, viewportArea, tileWidth, tileHeight, anchor);
|
|
|
|
// Convert the anchor point to aForFrame's coordinate space
|
|
nsIView* view;
|
|
aForFrame->GetView(aPresContext, &view);
|
|
if (!view) {
|
|
nsPoint offset;
|
|
aForFrame->GetOffsetFromView(aPresContext, offset, &view);
|
|
anchor -= offset;
|
|
}
|
|
NS_ASSERTION(view, "expected a view");
|
|
while (view && (view != viewportView)) {
|
|
nscoord x, y;
|
|
|
|
view->GetPosition(&x, &y);
|
|
anchor.x -= x;
|
|
anchor.y -= y;
|
|
|
|
// Get the parent view until we reach the viewport view
|
|
view->GetParent(view);
|
|
}
|
|
|
|
// Move the padding area so that we can use the same logic for both the
|
|
// fixed and scrolling cases
|
|
paddingArea.x = 0;
|
|
paddingArea.y = 0;
|
|
} else {
|
|
nsCOMPtr<nsIAtom> frameType;
|
|
aForFrame->GetFrameType(getter_AddRefs(frameType));
|
|
if (frameType.get() == nsLayoutAtoms::canvasFrame) {
|
|
// If the frame is the canvas, the image is placed relative to
|
|
// the root element's (first) frame (see bug 46446)
|
|
nsRect firstRootElementFrameArea;
|
|
nsIFrame* firstRootElementFrame;
|
|
aForFrame->FirstChild(aPresContext, nsnull, &firstRootElementFrame);
|
|
NS_ASSERTION(firstRootElementFrame, "A canvas with a background "
|
|
"image had no child frame, which is impossible according to CSS. "
|
|
"Make sure there isn't a background image specified on the "
|
|
"|:viewport| pseudo-element in |html.css|.");
|
|
|
|
// temporary null check -- see bug 97226
|
|
if (firstRootElementFrame) {
|
|
firstRootElementFrame->GetRect(firstRootElementFrameArea);
|
|
|
|
// Take the border out of the frame's rect
|
|
const nsStyleBorder* borderStyle;
|
|
firstRootElementFrame->GetStyleData(eStyleStruct_Border, (const nsStyleStruct*&)borderStyle);
|
|
nsMargin border;
|
|
borderStyle->GetBorder(border);
|
|
firstRootElementFrameArea.Deflate(border);
|
|
|
|
// Get the anchor point
|
|
ComputeBackgroundAnchorPoint(aColor, firstRootElementFrameArea, paddingArea, tileWidth, tileHeight, anchor);
|
|
} else {
|
|
ComputeBackgroundAnchorPoint(aColor, paddingArea, paddingArea, tileWidth, tileHeight, anchor);
|
|
}
|
|
} else {
|
|
// Otherwise, it is the normal case, and the background is
|
|
// simply placed relative to the frame's padding area
|
|
ComputeBackgroundAnchorPoint(aColor, paddingArea, paddingArea, tileWidth, tileHeight, anchor);
|
|
}
|
|
}
|
|
|
|
|
|
#if !defined(XP_UNIX) && !defined(XP_BEOS)
|
|
// Setup clipping so that rendering doesn't leak out of the computed
|
|
// dirty rect
|
|
PRBool clipState;
|
|
aRenderingContext.PushState();
|
|
aRenderingContext.SetClipRect(dirtyRect, nsClipCombine_kIntersect,
|
|
clipState);
|
|
#endif
|
|
|
|
// Compute the x and y starting points and limits for tiling
|
|
|
|
/* An Overview Of The Following Logic
|
|
|
|
A........ . . . . . . . . . . . . . .
|
|
: +---:-------.-------.-------.---- /|\
|
|
: | : . . . | nh
|
|
:.......: . . . x . . . . . . . . . . \|/
|
|
. | . . . .
|
|
. | . . ########### .
|
|
. . . . . . . . . .#. . . . .#. . . .
|
|
. | . . ########### . /|\
|
|
. | . . . . | h
|
|
. . | . . . . . . . . . . . . . z . . \|/
|
|
. | . . . .
|
|
|<-----nw------>| |<--w-->|
|
|
|
|
---- = the paddingArea edge. The padding is done relative to this
|
|
area. Outside the padding is the border. If the background
|
|
is positioned relative to the viewport ('fixed') then this
|
|
is the viewport edge.
|
|
|
|
.... = the primary tile.
|
|
|
|
. . = the other tiles.
|
|
|
|
#### = the dirtyRect. This is the minimum region we want to cover.
|
|
|
|
A = The anchor point. This is the point at which the tile should
|
|
start. Always negative or zero.
|
|
|
|
x = x0 and y0 in the code. The point at which tiling must start
|
|
so that the fewest tiles are laid out while completly
|
|
covering the dirtyRect area.
|
|
|
|
z = x1 and y1 in the code. The point at which tiling must end so
|
|
that the fewest tiles are laid out while completly covering
|
|
the dirtyRect area.
|
|
|
|
w = the width of the tile (tileWidth).
|
|
|
|
h = the height of the tile (tileHeight).
|
|
|
|
n = the number of whole tiles that fit between 'A' and 'x'.
|
|
(the vertical n and the horizontal n are different)
|
|
|
|
|
|
Therefore,
|
|
|
|
x0 = paddingArea.x + anchor.x + n * tileWidth;
|
|
|
|
...where n is an integer greater or equal to 0 fitting:
|
|
|
|
n * tileWidth <=
|
|
dirtyRect.x - (paddingArea.x + anchor.x) <=
|
|
(n+1) * tileWidth
|
|
|
|
...i.e.,
|
|
|
|
n <= (dirtyRect.x - (paddingArea.x + anchor.x)) / tileWidth < n + 1
|
|
|
|
...which, treating the division as an integer divide rounding down, gives:
|
|
|
|
n = (dirtyRect.x - (paddingArea.x + anchor.x)) / tileWidth
|
|
|
|
Substituting into the original expression for x0:
|
|
|
|
x0 = paddingArea.x + anchor.x +
|
|
((dirtyRect.x - (paddingArea.x + anchor.x)) / tileWidth) *
|
|
tileWidth;
|
|
|
|
From this x1 is determined,
|
|
|
|
x1 = x0 + m * tileWidth;
|
|
|
|
...where m is an integer greater than 0 fitting:
|
|
|
|
(m - 1) * tileWidth <
|
|
dirtyRect.x + dirtyRect.width - x0 <=
|
|
m * tileWidth
|
|
|
|
...i.e.,
|
|
|
|
m - 1 < (dirtyRect.x + dirtyRect.width - x0) / tileWidth <= m
|
|
|
|
...which, treating the division as an integer divide, and making it
|
|
round up, gives:
|
|
|
|
m = (dirtyRect.x + dirtyRect.width - x0 + tileWidth - 1) / tileWidth
|
|
|
|
Substituting into the original expression for x1:
|
|
|
|
x1 = x0 + ((dirtyRect.x + dirtyRect.width - x0 + tileWidth - 1) /
|
|
tileWidth) * tileWidth
|
|
|
|
The vertical case is analogous. If the background is fixed, then
|
|
paddingArea.x and paddingArea.y are set to zero when finding the parent
|
|
viewport, above.
|
|
|
|
*/
|
|
|
|
// first do the horizontal case
|
|
nscoord x0, x1;
|
|
if (repeat & NS_STYLE_BG_REPEAT_X) {
|
|
// When tiling in the x direction, adjust the starting position of the
|
|
// tile to account for dirtyRect.x. When tiling in x, the anchor.x value
|
|
// will be a negative value used to adjust the starting coordinate.
|
|
x0 = paddingArea.x + anchor.x + ((dirtyRect.x - (paddingArea.x + anchor.x)) / tileWidth) * tileWidth;
|
|
x1 = x0 + ((dirtyRect.x + dirtyRect.width - x0 + tileWidth - 1) / tileWidth) * tileWidth;
|
|
}
|
|
else {
|
|
// For scrolling attachment, the anchor is relative to the padding area.
|
|
// For fixed attachment, paddingArea.x is set to zero and the anchor is
|
|
// relative to the nearest scrolling ancestor (or the viewport).
|
|
x0 = paddingArea.x + anchor.x;
|
|
x1 = x0 + tileWidth;
|
|
}
|
|
|
|
// now do all that again with the vertical case
|
|
nscoord y0, y1;
|
|
if (repeat & NS_STYLE_BG_REPEAT_Y) {
|
|
// When tiling in the y direction, adjust the starting position of the
|
|
// tile to account for dirtyRect.y. When tiling in y, the anchor.y value
|
|
// will be a negative value used to adjust the starting coordinate.
|
|
y0 = paddingArea.y + anchor.y + ((dirtyRect.y - (paddingArea.y + anchor.y)) / tileHeight) * tileHeight;
|
|
y1 = y0 + ((dirtyRect.y + dirtyRect.height - y0 + tileHeight - 1) / tileHeight) * tileHeight;
|
|
}
|
|
else {
|
|
// For scrolling attachment, the anchor is relative to the padding area.
|
|
// For fixed attachment, paddingArea.y is set to zero and the anchor is
|
|
// relative to the nearest scrolling ancestor (or the viewport).
|
|
y0 = paddingArea.y + anchor.y;
|
|
y1 = y0 + tileHeight;
|
|
}
|
|
|
|
// Take the intersection again to paint only the required area
|
|
nsRect tileRect(x0,y0,(x1-x0),(y1-y0));
|
|
#ifdef XP_WIN
|
|
PRInt32 xOffset = tileRect.x - x0,
|
|
yOffset = tileRect.y - y0;
|
|
aRenderingContext.DrawTile(image,xOffset,yOffset,&tileRect);
|
|
#else
|
|
nsRect drawRect;
|
|
|
|
if (drawRect.IntersectRect(tileRect, dirtyRect)) {
|
|
PRInt32 xOffset = drawRect.x - x0,
|
|
yOffset = drawRect.y - y0;
|
|
aRenderingContext.DrawTile(image,xOffset,yOffset,&drawRect);
|
|
}
|
|
#endif
|
|
|
|
#if !defined(XP_UNIX) && !defined(XP_BEOS)
|
|
// Restore clipping
|
|
aRenderingContext.PopState(clipState);
|
|
#endif
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* A bit blitter to tile images to the background recursively
|
|
* @update 4/13/99 dwc
|
|
* @param aRC -- Rendering Context to render to
|
|
* @param aDS -- Target drawing surface for the rendering context
|
|
* @param aSrcRect -- Rectangle we are build with the image
|
|
* @param aHeight -- height of the tile
|
|
* @param aWidth -- width of the tile
|
|
*/
|
|
static void
|
|
TileImage(nsIRenderingContext& aRC,nsDrawingSurface aDS,nsRect &aSrcRect,PRInt16 aWidth,PRInt16 aHeight)
|
|
{
|
|
nsRect destRect;
|
|
PRInt32 flag = NS_COPYBITS_TO_BACK_BUFFER | NS_COPYBITS_XFORM_DEST_VALUES;
|
|
|
|
if( aSrcRect.width < aWidth) {
|
|
// width is less than double so double our source bitmap width
|
|
destRect = aSrcRect;
|
|
destRect.x += aSrcRect.width;
|
|
aRC.CopyOffScreenBits(aDS,aSrcRect.x,aSrcRect.y,destRect,flag);
|
|
aSrcRect.width*=2;
|
|
TileImage(aRC,aDS,aSrcRect,aWidth,aHeight);
|
|
} else if (aSrcRect.height < aHeight) {
|
|
// height is less than double so double our source bitmap height
|
|
destRect = aSrcRect;
|
|
destRect.y += aSrcRect.height;
|
|
aRC.CopyOffScreenBits(aDS,aSrcRect.x,aSrcRect.y,destRect,flag);
|
|
aSrcRect.height*=2;
|
|
TileImage(aRC,aDS,aSrcRect,aWidth,aHeight);
|
|
}
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 3/26/99 dwc
|
|
*/
|
|
void
|
|
nsCSSRendering::PaintRoundedBackground(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
const nsStyleBackground& aColor,
|
|
nscoord aDX,
|
|
nscoord aDY,
|
|
PRInt16 aTheRadius[4])
|
|
{
|
|
RoundedRect outerPath;
|
|
QBCurve cr1,cr2,cr3,cr4;
|
|
QBCurve UL,UR,LL,LR;
|
|
PRInt32 curIndex,c1Index;
|
|
nsFloatPoint thePath[MAXPATHSIZE];
|
|
static nsPoint polyPath[MAXPOLYPATHSIZE];
|
|
PRInt16 np;
|
|
nscoord twipsPerPixel;
|
|
float p2t;
|
|
|
|
// needed for our border thickness
|
|
aPresContext->GetPixelsToTwips(&p2t);
|
|
twipsPerPixel = NSToCoordRound(p2t);
|
|
|
|
aRenderingContext.SetColor(aColor.mBackgroundColor);
|
|
|
|
// set the rounded rect up, and let'er rip
|
|
outerPath.Set(aBorderArea.x,aBorderArea.y,aBorderArea.width,aBorderArea.height,aTheRadius,twipsPerPixel);
|
|
outerPath.GetRoundedBorders(UL,UR,LL,LR);
|
|
|
|
// BUILD THE ENTIRE OUTSIDE PATH
|
|
// TOP LINE ----------------------------------------------------------------
|
|
UL.MidPointDivide(&cr1,&cr2);
|
|
UR.MidPointDivide(&cr3,&cr4);
|
|
np=0;
|
|
thePath[np++].MoveTo(cr2.mAnc1.x,cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x, cr2.mAnc2.y);
|
|
thePath[np++].MoveTo(cr3.mAnc1.x, cr3.mAnc1.y);
|
|
thePath[np++].MoveTo(cr3.mCon.x, cr3.mCon.y);
|
|
thePath[np++].MoveTo(cr3.mAnc2.x, cr3.mAnc2.y);
|
|
|
|
polyPath[0].x = NSToCoordRound(thePath[0].x);
|
|
polyPath[0].y = NSToCoordRound(thePath[0].y);
|
|
curIndex = 1;
|
|
GetPath(thePath,polyPath,&curIndex,eOutside,c1Index);
|
|
|
|
// RIGHT LINE ----------------------------------------------------------------
|
|
LR.MidPointDivide(&cr2,&cr3);
|
|
np=0;
|
|
thePath[np++].MoveTo(cr4.mAnc1.x,cr4.mAnc1.y);
|
|
thePath[np++].MoveTo(cr4.mCon.x, cr4.mCon.y);
|
|
thePath[np++].MoveTo(cr4.mAnc2.x, cr4.mAnc2.y);
|
|
thePath[np++].MoveTo(cr2.mAnc1.x, cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x, cr2.mAnc2.y);
|
|
GetPath(thePath,polyPath,&curIndex,eOutside,c1Index);
|
|
|
|
// BOTTOM LINE ----------------------------------------------------------------
|
|
LL.MidPointDivide(&cr2,&cr4);
|
|
np=0;
|
|
thePath[np++].MoveTo(cr3.mAnc1.x,cr3.mAnc1.y);
|
|
thePath[np++].MoveTo(cr3.mCon.x, cr3.mCon.y);
|
|
thePath[np++].MoveTo(cr3.mAnc2.x, cr3.mAnc2.y);
|
|
thePath[np++].MoveTo(cr2.mAnc1.x, cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x, cr2.mAnc2.y);
|
|
GetPath(thePath,polyPath,&curIndex,eOutside,c1Index);
|
|
|
|
// LEFT LINE ----------------------------------------------------------------
|
|
np=0;
|
|
thePath[np++].MoveTo(cr4.mAnc1.x,cr4.mAnc1.y);
|
|
thePath[np++].MoveTo(cr4.mCon.x, cr4.mCon.y);
|
|
thePath[np++].MoveTo(cr4.mAnc2.x, cr4.mAnc2.y);
|
|
thePath[np++].MoveTo(cr1.mAnc1.x, cr1.mAnc1.y);
|
|
thePath[np++].MoveTo(cr1.mCon.x, cr1.mCon.y);
|
|
thePath[np++].MoveTo(cr1.mAnc2.x, cr1.mAnc2.y);
|
|
GetPath(thePath,polyPath,&curIndex,eOutside,c1Index);
|
|
|
|
aRenderingContext.FillPolygon(polyPath,curIndex);
|
|
|
|
}
|
|
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 3/26/99 dwc
|
|
*/
|
|
void
|
|
nsCSSRendering::PaintRoundedBorder(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsIFrame* aForFrame,
|
|
const nsRect& aDirtyRect,
|
|
const nsRect& aBorderArea,
|
|
const nsStyleBorder* aBorderStyle,
|
|
const nsStyleOutline* aOutlineStyle,
|
|
nsIStyleContext* aStyleContext,
|
|
PRIntn aSkipSides,
|
|
PRInt16 aBorderRadius[4],
|
|
nsRect* aGap,
|
|
PRBool aIsOutline)
|
|
{
|
|
RoundedRect outerPath;
|
|
QBCurve UL,LL,UR,LR;
|
|
QBCurve IUL,ILL,IUR,ILR;
|
|
QBCurve cr1,cr2,cr3,cr4;
|
|
QBCurve Icr1,Icr2,Icr3,Icr4;
|
|
nsFloatPoint thePath[MAXPATHSIZE];
|
|
PRInt16 np;
|
|
nsMargin border;
|
|
nscoord twipsPerPixel,qtwips;
|
|
float p2t;
|
|
|
|
NS_ASSERTION((aIsOutline && aOutlineStyle) || (!aIsOutline && aBorderStyle), "null params not allowed");
|
|
if (!aIsOutline) {
|
|
aBorderStyle->CalcBorderFor(aForFrame, border);
|
|
if ((0 == border.left) && (0 == border.right) &&
|
|
(0 == border.top) && (0 == border.bottom)) {
|
|
return;
|
|
}
|
|
} else {
|
|
nscoord width;
|
|
if (!aOutlineStyle->GetOutlineWidth(width)) {
|
|
return;
|
|
}
|
|
border.left = width;
|
|
border.right = width;
|
|
border.top = width;
|
|
border.bottom = width;
|
|
}
|
|
|
|
// needed for our border thickness
|
|
aPresContext->GetPixelsToTwips(&p2t);
|
|
twipsPerPixel = NSToCoordRound(p2t);
|
|
|
|
// Base our thickness check on the segment being less than a pixel and 1/2
|
|
qtwips = twipsPerPixel >> 2;
|
|
//qtwips = twipsPerPixel;
|
|
|
|
outerPath.Set(aBorderArea.x,aBorderArea.y,aBorderArea.width,aBorderArea.height,aBorderRadius,twipsPerPixel);
|
|
outerPath.GetRoundedBorders(UL,UR,LL,LR);
|
|
outerPath.CalcInsetCurves(IUL,IUR,ILL,ILR,border);
|
|
|
|
// TOP LINE -- construct and divide the curves first, then put together our top and bottom paths
|
|
UL.MidPointDivide(&cr1,&cr2);
|
|
UR.MidPointDivide(&cr3,&cr4);
|
|
IUL.MidPointDivide(&Icr1,&Icr2);
|
|
IUR.MidPointDivide(&Icr3,&Icr4);
|
|
if(0!=border.top){
|
|
np=0;
|
|
thePath[np++].MoveTo(cr2.mAnc1.x,cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x, cr2.mAnc2.y);
|
|
thePath[np++].MoveTo(cr3.mAnc1.x, cr3.mAnc1.y);
|
|
thePath[np++].MoveTo(cr3.mCon.x, cr3.mCon.y);
|
|
thePath[np++].MoveTo(cr3.mAnc2.x, cr3.mAnc2.y);
|
|
|
|
thePath[np++].MoveTo(Icr3.mAnc2.x,Icr3.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr3.mCon.x, Icr3.mCon.y);
|
|
thePath[np++].MoveTo(Icr3.mAnc1.x, Icr3.mAnc1.y);
|
|
thePath[np++].MoveTo(Icr2.mAnc2.x, Icr2.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr2.mCon.x, Icr2.mCon.y);
|
|
thePath[np++].MoveTo(Icr2.mAnc1.x, Icr2.mAnc1.y);
|
|
RenderSide(thePath,aRenderingContext,aBorderStyle,aOutlineStyle,aStyleContext,NS_SIDE_TOP,border,qtwips, aIsOutline);
|
|
}
|
|
// RIGHT LINE ----------------------------------------------------------------
|
|
LR.MidPointDivide(&cr2,&cr3);
|
|
ILR.MidPointDivide(&Icr2,&Icr3);
|
|
if(0!=border.right){
|
|
np=0;
|
|
thePath[np++].MoveTo(cr4.mAnc1.x,cr4.mAnc1.y);
|
|
thePath[np++].MoveTo(cr4.mCon.x, cr4.mCon.y);
|
|
thePath[np++].MoveTo(cr4.mAnc2.x,cr4.mAnc2.y);
|
|
thePath[np++].MoveTo(cr2.mAnc1.x,cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x,cr2.mAnc2.y);
|
|
|
|
thePath[np++].MoveTo(Icr2.mAnc2.x,Icr2.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr2.mCon.x, Icr2.mCon.y);
|
|
thePath[np++].MoveTo(Icr2.mAnc1.x,Icr2.mAnc1.y);
|
|
thePath[np++].MoveTo(Icr4.mAnc2.x,Icr4.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr4.mCon.x, Icr4.mCon.y);
|
|
thePath[np++].MoveTo(Icr4.mAnc1.x,Icr4.mAnc1.y);
|
|
RenderSide(thePath,aRenderingContext,aBorderStyle,aOutlineStyle,aStyleContext,NS_SIDE_RIGHT,border,qtwips, aIsOutline);
|
|
}
|
|
|
|
// bottom line ----------------------------------------------------------------
|
|
LL.MidPointDivide(&cr2,&cr4);
|
|
ILL.MidPointDivide(&Icr2,&Icr4);
|
|
if(0!=border.bottom){
|
|
np=0;
|
|
thePath[np++].MoveTo(cr3.mAnc1.x,cr3.mAnc1.y);
|
|
thePath[np++].MoveTo(cr3.mCon.x, cr3.mCon.y);
|
|
thePath[np++].MoveTo(cr3.mAnc2.x, cr3.mAnc2.y);
|
|
thePath[np++].MoveTo(cr2.mAnc1.x, cr2.mAnc1.y);
|
|
thePath[np++].MoveTo(cr2.mCon.x, cr2.mCon.y);
|
|
thePath[np++].MoveTo(cr2.mAnc2.x, cr2.mAnc2.y);
|
|
|
|
thePath[np++].MoveTo(Icr2.mAnc2.x,Icr2.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr2.mCon.x, Icr2.mCon.y);
|
|
thePath[np++].MoveTo(Icr2.mAnc1.x, Icr2.mAnc1.y);
|
|
thePath[np++].MoveTo(Icr3.mAnc2.x, Icr3.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr3.mCon.x, Icr3.mCon.y);
|
|
thePath[np++].MoveTo(Icr3.mAnc1.x, Icr3.mAnc1.y);
|
|
RenderSide(thePath,aRenderingContext,aBorderStyle,aOutlineStyle,aStyleContext,NS_SIDE_BOTTOM,border,qtwips, aIsOutline);
|
|
}
|
|
// left line ----------------------------------------------------------------
|
|
if(0==border.left)
|
|
return;
|
|
np=0;
|
|
thePath[np++].MoveTo(cr4.mAnc1.x,cr4.mAnc1.y);
|
|
thePath[np++].MoveTo(cr4.mCon.x, cr4.mCon.y);
|
|
thePath[np++].MoveTo(cr4.mAnc2.x, cr4.mAnc2.y);
|
|
thePath[np++].MoveTo(cr1.mAnc1.x, cr1.mAnc1.y);
|
|
thePath[np++].MoveTo(cr1.mCon.x, cr1.mCon.y);
|
|
thePath[np++].MoveTo(cr1.mAnc2.x, cr1.mAnc2.y);
|
|
|
|
|
|
thePath[np++].MoveTo(Icr1.mAnc2.x,Icr1.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr1.mCon.x, Icr1.mCon.y);
|
|
thePath[np++].MoveTo(Icr1.mAnc1.x, Icr1.mAnc1.y);
|
|
thePath[np++].MoveTo(Icr4.mAnc2.x, Icr4.mAnc2.y);
|
|
thePath[np++].MoveTo(Icr4.mCon.x, Icr4.mCon.y);
|
|
thePath[np++].MoveTo(Icr4.mAnc1.x, Icr4.mAnc1.y);
|
|
|
|
RenderSide(thePath,aRenderingContext,aBorderStyle,aOutlineStyle,aStyleContext,NS_SIDE_LEFT,border,qtwips, aIsOutline);
|
|
}
|
|
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 3/26/99 dwc
|
|
*/
|
|
void
|
|
nsCSSRendering::RenderSide(nsFloatPoint aPoints[],nsIRenderingContext& aRenderingContext,
|
|
const nsStyleBorder* aBorderStyle,const nsStyleOutline* aOutlineStyle,nsIStyleContext* aStyleContext,
|
|
PRUint8 aSide,nsMargin &aBorThick,nscoord aTwipsPerPixel,
|
|
PRBool aIsOutline)
|
|
{
|
|
QBCurve thecurve;
|
|
nscolor sideColor = NS_RGB(0,0,0);
|
|
static nsPoint polypath[MAXPOLYPATHSIZE];
|
|
PRInt32 curIndex,c1Index,c2Index,junk;
|
|
PRInt8 border_Style;
|
|
PRInt16 thickness;
|
|
|
|
// Get our style context's color struct.
|
|
const nsStyleColor* ourColor = (const nsStyleColor*)aStyleContext->GetStyleData(eStyleStruct_Color);
|
|
|
|
NS_ASSERTION((aIsOutline && aOutlineStyle) || (!aIsOutline && aBorderStyle), "null params not allowed");
|
|
// set the style information
|
|
if (!aIsOutline) {
|
|
GetBorderColor(ourColor, *aBorderStyle, aSide, sideColor);
|
|
} else {
|
|
aOutlineStyle->GetOutlineColor(sideColor);
|
|
}
|
|
aRenderingContext.SetColor ( sideColor );
|
|
|
|
thickness = 0;
|
|
switch(aSide){
|
|
case NS_SIDE_LEFT:
|
|
thickness = aBorThick.left;
|
|
break;
|
|
case NS_SIDE_TOP:
|
|
thickness = aBorThick.top;
|
|
break;
|
|
case NS_SIDE_RIGHT:
|
|
thickness = aBorThick.right;
|
|
break;
|
|
case NS_SIDE_BOTTOM:
|
|
thickness = aBorThick.bottom;
|
|
break;
|
|
}
|
|
|
|
// if the border is thin, just draw it
|
|
if (thickness<=aTwipsPerPixel) {
|
|
// NOTHING FANCY JUST DRAW OUR OUTSIDE BORDER
|
|
thecurve.SetPoints(aPoints[0].x,aPoints[0].y,aPoints[1].x,aPoints[1].y,aPoints[2].x,aPoints[2].y);
|
|
thecurve.SubDivide((nsIRenderingContext*)&aRenderingContext,0,0);
|
|
aRenderingContext.DrawLine((nscoord)aPoints[2].x,(nscoord)aPoints[2].y,(nscoord)aPoints[3].x,(nscoord)aPoints[3].y);
|
|
thecurve.SetPoints(aPoints[3].x,aPoints[3].y,aPoints[4].x,aPoints[4].y,aPoints[5].x,aPoints[5].y);
|
|
thecurve.SubDivide((nsIRenderingContext*)&aRenderingContext,0,0);
|
|
} else {
|
|
|
|
if (!aIsOutline) {
|
|
border_Style = aBorderStyle->GetBorderStyle(aSide);
|
|
} else {
|
|
border_Style = aOutlineStyle->GetOutlineStyle();
|
|
}
|
|
switch (border_Style){
|
|
case NS_STYLE_BORDER_STYLE_OUTSET:
|
|
case NS_STYLE_BORDER_STYLE_INSET:
|
|
{
|
|
const nsStyleBackground* bgColor = nsStyleUtil::FindNonTransparentBackground(aStyleContext);
|
|
aRenderingContext.SetColor ( MakeBevelColor (aSide, border_Style, bgColor->mBackgroundColor,sideColor, PR_TRUE));
|
|
}
|
|
case NS_STYLE_BORDER_STYLE_DOTTED:
|
|
case NS_STYLE_BORDER_STYLE_DASHED:
|
|
// break; This is here until dotted and dashed are supported. It is ok to have
|
|
// dotted and dashed render in solid until this style is supported. This code should
|
|
// be moved when it is supported so that the above outset and inset will fall into the
|
|
// solid code below....
|
|
case NS_STYLE_BORDER_STYLE_SOLID:
|
|
polypath[0].x = NSToCoordRound(aPoints[0].x);
|
|
polypath[0].y = NSToCoordRound(aPoints[0].y);
|
|
curIndex = 1;
|
|
GetPath(aPoints,polypath,&curIndex,eOutside,c1Index);
|
|
c2Index = curIndex;
|
|
polypath[curIndex].x = NSToCoordRound(aPoints[6].x);
|
|
polypath[curIndex].y = NSToCoordRound(aPoints[6].y);
|
|
curIndex++;
|
|
GetPath(aPoints,polypath,&curIndex,eInside,junk);
|
|
polypath[curIndex].x = NSToCoordRound(aPoints[0].x);
|
|
polypath[curIndex].y = NSToCoordRound(aPoints[0].y);
|
|
curIndex++;
|
|
aRenderingContext.FillPolygon(polypath,curIndex);
|
|
|
|
break;
|
|
case NS_STYLE_BORDER_STYLE_DOUBLE:
|
|
polypath[0].x = NSToCoordRound(aPoints[0].x);
|
|
polypath[0].y = NSToCoordRound(aPoints[0].y);
|
|
curIndex = 1;
|
|
GetPath(aPoints,polypath,&curIndex,eOutside,c1Index);
|
|
aRenderingContext.DrawPolyline(polypath,curIndex);
|
|
polypath[0].x = NSToCoordRound(aPoints[6].x);
|
|
polypath[0].y = NSToCoordRound(aPoints[6].y);
|
|
curIndex = 1;
|
|
GetPath(aPoints,polypath,&curIndex,eInside,c1Index);
|
|
aRenderingContext.DrawPolyline(polypath,curIndex);
|
|
break;
|
|
case NS_STYLE_BORDER_STYLE_NONE:
|
|
case NS_STYLE_BORDER_STYLE_HIDDEN:
|
|
case NS_STYLE_BORDER_STYLE_BLANK:
|
|
break;
|
|
case NS_STYLE_BORDER_STYLE_RIDGE:
|
|
case NS_STYLE_BORDER_STYLE_GROOVE:
|
|
{
|
|
const nsStyleBackground* bgColor = nsStyleUtil::FindNonTransparentBackground(aStyleContext);
|
|
aRenderingContext.SetColor ( MakeBevelColor (aSide, border_Style, bgColor->mBackgroundColor,sideColor, PR_TRUE));
|
|
|
|
polypath[0].x = NSToCoordRound(aPoints[0].x);
|
|
polypath[0].y = NSToCoordRound(aPoints[0].y);
|
|
curIndex = 1;
|
|
GetPath(aPoints,polypath,&curIndex,eOutside,c1Index);
|
|
polypath[curIndex].x = NSToCoordRound((aPoints[5].x + aPoints[6].x)/2.0f);
|
|
polypath[curIndex].y = NSToCoordRound((aPoints[5].y + aPoints[6].y)/2.0f);
|
|
curIndex++;
|
|
GetPath(aPoints,polypath,&curIndex,eCalcRev,c1Index,.5);
|
|
polypath[curIndex].x = NSToCoordRound(aPoints[0].x);
|
|
polypath[curIndex].y = NSToCoordRound(aPoints[0].y);
|
|
curIndex++;
|
|
aRenderingContext.FillPolygon(polypath,curIndex);
|
|
|
|
aRenderingContext.SetColor ( MakeBevelColor (aSide,
|
|
((border_Style == NS_STYLE_BORDER_STYLE_RIDGE) ?
|
|
NS_STYLE_BORDER_STYLE_GROOVE :
|
|
NS_STYLE_BORDER_STYLE_RIDGE),
|
|
bgColor->mBackgroundColor,sideColor, PR_TRUE));
|
|
|
|
polypath[0].x = NSToCoordRound((aPoints[0].x + aPoints[11].x)/2.0f);
|
|
polypath[0].y = NSToCoordRound((aPoints[0].y + aPoints[11].y)/2.0f);
|
|
curIndex = 1;
|
|
GetPath(aPoints,polypath,&curIndex,eCalc,c1Index,.5);
|
|
polypath[curIndex].x = NSToCoordRound(aPoints[6].x) ;
|
|
polypath[curIndex].y = NSToCoordRound(aPoints[6].y);
|
|
curIndex++;
|
|
GetPath(aPoints,polypath,&curIndex,eInside,c1Index);
|
|
polypath[curIndex].x = NSToCoordRound(aPoints[0].x);
|
|
polypath[curIndex].y = NSToCoordRound(aPoints[0].y);
|
|
curIndex++;
|
|
aRenderingContext.FillPolygon(polypath,curIndex);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 3/26/99 dwc
|
|
*/
|
|
void
|
|
RoundedRect::CalcInsetCurves(QBCurve &aULCurve,QBCurve &aURCurve,QBCurve &aLLCurve,QBCurve &aLRCurve,nsMargin &aBorder)
|
|
{
|
|
PRInt32 nLeft,nTop,nRight,nBottom;
|
|
PRInt32 tLeft,bLeft,tRight,bRight,lTop,rTop,lBottom,rBottom;
|
|
PRInt16 adjust=0;
|
|
|
|
if(mDoRound)
|
|
adjust = mRoundness[0]>>3;
|
|
|
|
nLeft = mLeft + aBorder.left;
|
|
tLeft = mLeft + mRoundness[0];
|
|
bLeft = mLeft + mRoundness[3];
|
|
|
|
if(tLeft < nLeft){
|
|
tLeft = nLeft;
|
|
}
|
|
|
|
if(bLeft < nLeft){
|
|
bLeft = nLeft;
|
|
}
|
|
|
|
nRight = mRight - aBorder.right;
|
|
tRight = mRight - mRoundness[1];
|
|
bRight = mRight - mRoundness[2];
|
|
|
|
if(tRight > nRight){
|
|
tRight = nRight;
|
|
}
|
|
|
|
if(bRight > nRight){
|
|
bRight = nRight;
|
|
}
|
|
|
|
nTop = mTop + aBorder.top;
|
|
lTop = mTop + mRoundness[0];
|
|
rTop = mTop + mRoundness[1];
|
|
|
|
if(lTop < nTop){
|
|
lTop = nTop;
|
|
}
|
|
|
|
if(rTop < nTop){
|
|
rTop = nTop;
|
|
}
|
|
|
|
nBottom = mBottom - aBorder.bottom;
|
|
lBottom = mBottom - mRoundness[3];
|
|
rBottom = mBottom - mRoundness[2];
|
|
|
|
if(lBottom > nBottom){
|
|
lBottom = nBottom;
|
|
}
|
|
|
|
if(rBottom > nBottom){
|
|
rBottom = nBottom;
|
|
}
|
|
|
|
|
|
// set the passed in curves to the rounded borders of the rectangle
|
|
aULCurve.SetPoints( (float)nLeft,(float)lTop,
|
|
(float)nLeft+adjust,(float)nTop+adjust,
|
|
(float)tLeft,(float)nTop);
|
|
aURCurve.SetPoints( (float)tRight,(float)nTop,
|
|
(float)nRight-adjust,(float)nTop+adjust,
|
|
(float)nRight,(float)rTop);
|
|
aLRCurve.SetPoints( (float)nRight,(float)rBottom,
|
|
(float)nRight-adjust,(float)nBottom-adjust,
|
|
(float)bRight,(float)nBottom);
|
|
aLLCurve.SetPoints( (float)bLeft,(float)nBottom,
|
|
(float)nLeft+adjust,(float)nBottom-adjust,
|
|
(float)nLeft,(float)lBottom);
|
|
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 4/13/99 dwc
|
|
*/
|
|
void
|
|
RoundedRect::Set(nscoord aLeft,nscoord aTop,PRInt32 aWidth,PRInt32 aHeight,PRInt16 aRadius[4],PRInt16 aNumTwipPerPix)
|
|
{
|
|
nscoord x,y,width,height;
|
|
int i;
|
|
|
|
// convert this rect to pixel boundaries
|
|
x = (aLeft/aNumTwipPerPix)*aNumTwipPerPix;
|
|
y = (aTop/aNumTwipPerPix)*aNumTwipPerPix;
|
|
width = (aWidth/aNumTwipPerPix)*aNumTwipPerPix;
|
|
height = (aHeight/aNumTwipPerPix)*aNumTwipPerPix;
|
|
|
|
|
|
for(i=0;i<4;i++) {
|
|
if( (aRadius[i]) > (aWidth>>1) ){
|
|
mRoundness[i] = (aWidth>>1);
|
|
} else {
|
|
mRoundness[i] = aRadius[i];
|
|
}
|
|
|
|
if( mRoundness[i] > (aHeight>>1) )
|
|
mRoundness[i] = aHeight>>1;
|
|
}
|
|
|
|
|
|
// if we are drawing a circle
|
|
mDoRound = PR_FALSE;
|
|
if(aHeight==aWidth){
|
|
PRBool doRound = PR_TRUE;
|
|
for(i=0;i<4;i++){
|
|
if(mRoundness[i]<(aWidth>>1)){
|
|
doRound = PR_FALSE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(doRound){
|
|
mDoRound = PR_TRUE;
|
|
for(i=0;i<4;i++){
|
|
mRoundness[i] = aWidth>>1;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
// important coordinates that the path hits
|
|
mLeft = x;
|
|
mTop = y;
|
|
mRight = x+width;
|
|
mBottom = y+height;
|
|
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 4/13/99 dwc
|
|
*/
|
|
void
|
|
RoundedRect::GetRoundedBorders(QBCurve &aULCurve,QBCurve &aURCurve,QBCurve &aLLCurve,QBCurve &aLRCurve)
|
|
{
|
|
|
|
PRInt16 adjust=0;
|
|
|
|
if(mDoRound)
|
|
adjust = mRoundness[0]>>3;
|
|
|
|
// set the passed in curves to the rounded borders of the rectangle
|
|
aULCurve.SetPoints( (float)mLeft,(float)mTop + mRoundness[0],
|
|
(float)mLeft+adjust,(float)mTop+adjust,
|
|
(float)mLeft+mRoundness[0],(float)mTop);
|
|
aURCurve.SetPoints( (float)mRight - mRoundness[1],(float)mTop,
|
|
(float)mRight-adjust,(float)mTop+adjust,
|
|
(float)mRight,(float)mTop + mRoundness[1]);
|
|
aLRCurve.SetPoints( (float)mRight,(float)mBottom - mRoundness[2],
|
|
(float)mRight-adjust,(float)mBottom-adjust,
|
|
(float)mRight - mRoundness[2],(float)mBottom);
|
|
aLLCurve.SetPoints( (float)mLeft + mRoundness[3],(float)mBottom,
|
|
(float)mLeft+adjust,(float)mBottom-adjust,
|
|
(float)mLeft,(float)mBottom - mRoundness[3]);
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* Given a qbezier path, convert it into a polygon path
|
|
* @update 3/26/99 dwc
|
|
* @param aPoints -- an array of points to use for the path
|
|
* @param aPolyPath -- an array of points containing the flattened polygon to use
|
|
* @param aCurIndex -- the index that points to the last element of the array
|
|
* @param aPathType -- what kind of path that should be returned
|
|
* @param aFrac -- the inset amount for a eCalc type path
|
|
*/
|
|
static void
|
|
GetPath(nsFloatPoint aPoints[],nsPoint aPolyPath[],PRInt32 *aCurIndex,ePathTypes aPathType,PRInt32 &aC1Index,float aFrac)
|
|
{
|
|
QBCurve thecurve;
|
|
|
|
switch (aPathType) {
|
|
case eOutside:
|
|
thecurve.SetPoints(aPoints[0].x,aPoints[0].y,aPoints[1].x,aPoints[1].y,aPoints[2].x,aPoints[2].y);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
aC1Index = *aCurIndex;
|
|
aPolyPath[*aCurIndex].x = (nscoord)aPoints[3].x;
|
|
aPolyPath[*aCurIndex].y = (nscoord)aPoints[3].y;
|
|
(*aCurIndex)++;
|
|
thecurve.SetPoints(aPoints[3].x,aPoints[3].y,aPoints[4].x,aPoints[4].y,aPoints[5].x,aPoints[5].y);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
break;
|
|
case eInside:
|
|
thecurve.SetPoints(aPoints[6].x,aPoints[6].y,aPoints[7].x,aPoints[7].y,aPoints[8].x,aPoints[8].y);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
aPolyPath[*aCurIndex].x = (nscoord)aPoints[9].x;
|
|
aPolyPath[*aCurIndex].y = (nscoord)aPoints[9].y;
|
|
(*aCurIndex)++;
|
|
thecurve.SetPoints(aPoints[9].x,aPoints[9].y,aPoints[10].x,aPoints[10].y,aPoints[11].x,aPoints[11].y);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
break;
|
|
case eCalc:
|
|
thecurve.SetPoints( (aPoints[0].x+aPoints[11].x)/2.0f,(aPoints[0].y+aPoints[11].y)/2.0f,
|
|
(aPoints[1].x+aPoints[10].x)/2.0f,(aPoints[1].y+aPoints[10].y)/2.0f,
|
|
(aPoints[2].x+aPoints[9].x)/2.0f,(aPoints[2].y+aPoints[9].y)/2.0f);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
aPolyPath[*aCurIndex].x = (nscoord)((aPoints[3].x+aPoints[8].x)/2.0f);
|
|
aPolyPath[*aCurIndex].y = (nscoord)((aPoints[3].y+aPoints[8].y)/2.0f);
|
|
(*aCurIndex)++;
|
|
thecurve.SetPoints( (aPoints[3].x+aPoints[8].x)/2.0f,(aPoints[3].y+aPoints[8].y)/2.0f,
|
|
(aPoints[4].x+aPoints[7].x)/2.0f,(aPoints[4].y+aPoints[7].y)/2.0f,
|
|
(aPoints[5].x+aPoints[6].x)/2.0f,(aPoints[5].y+aPoints[6].y)/2.0f);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
break;
|
|
case eCalcRev:
|
|
thecurve.SetPoints( (aPoints[5].x+aPoints[6].x)/2.0f,(aPoints[5].y+aPoints[6].y)/2.0f,
|
|
(aPoints[4].x+aPoints[7].x)/2.0f,(aPoints[4].y+aPoints[7].y)/2.0f,
|
|
(aPoints[3].x+aPoints[8].x)/2.0f,(aPoints[3].y+aPoints[8].y)/2.0f);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
aPolyPath[*aCurIndex].x = (nscoord)((aPoints[2].x+aPoints[9].x)/2.0f);
|
|
aPolyPath[*aCurIndex].y = (nscoord)((aPoints[2].y+aPoints[9].y)/2.0f);
|
|
(*aCurIndex)++;
|
|
thecurve.SetPoints( (aPoints[2].x+aPoints[9].x)/2.0f,(aPoints[2].y+aPoints[9].y)/2.0f,
|
|
(aPoints[1].x+aPoints[10].x)/2.0f,(aPoints[1].y+aPoints[10].y)/2.0f,
|
|
(aPoints[0].x+aPoints[11].x)/2.0f,(aPoints[0].y+aPoints[11].y)/2.0f);
|
|
thecurve.SubDivide(nsnull,aPolyPath,aCurIndex);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 4/13/99 dwc
|
|
*/
|
|
void
|
|
QBCurve::SubDivide(nsIRenderingContext *aRenderingContext,nsPoint aPointArray[],PRInt32 *aCurIndex)
|
|
{
|
|
QBCurve curve1,curve2;
|
|
float fx,fy,smag;
|
|
|
|
// divide the curve into 2 pieces
|
|
MidPointDivide(&curve1,&curve2);
|
|
|
|
fx = (float)fabs(curve1.mAnc2.x - this->mCon.x);
|
|
fy = (float)fabs(curve1.mAnc2.y - this->mCon.y);
|
|
|
|
//smag = fx+fy-(PR_MIN(fx,fy)>>1);
|
|
smag = fx*fx + fy*fy;
|
|
|
|
if (smag>1){
|
|
// split the curve again
|
|
curve1.SubDivide(aRenderingContext,aPointArray,aCurIndex);
|
|
curve2.SubDivide(aRenderingContext,aPointArray,aCurIndex);
|
|
}else{
|
|
if(aPointArray ) {
|
|
// save the points for further processing
|
|
aPointArray[*aCurIndex].x = (nscoord)curve1.mAnc2.x;
|
|
aPointArray[*aCurIndex].y = (nscoord)curve1.mAnc2.y;
|
|
(*aCurIndex)++;
|
|
aPointArray[*aCurIndex].x = (nscoord)curve2.mAnc2.x;
|
|
aPointArray[*aCurIndex].y = (nscoord)curve2.mAnc2.y;
|
|
(*aCurIndex)++;
|
|
}else{
|
|
// draw the curve
|
|
nsTransform2D *aTransform;
|
|
aRenderingContext->GetCurrentTransform(aTransform);
|
|
|
|
|
|
aRenderingContext->DrawLine((nscoord)curve1.mAnc1.x,(nscoord)curve1.mAnc1.y,(nscoord)curve1.mAnc2.x,(nscoord)curve1.mAnc2.y);
|
|
aRenderingContext->DrawLine((nscoord)curve1.mAnc2.x,(nscoord)curve1.mAnc2.y,(nscoord)curve2.mAnc2.x,(nscoord)curve2.mAnc2.y);
|
|
}
|
|
}
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* See documentation in nsCSSRendering.h
|
|
* @update 4/13/99 dwc
|
|
*/
|
|
void
|
|
QBCurve::MidPointDivide(QBCurve *A,QBCurve *B)
|
|
{
|
|
float c1x,c1y,c2x,c2y;
|
|
nsFloatPoint a1;
|
|
|
|
c1x = (mAnc1.x+mCon.x)/2.0f;
|
|
c1y = (mAnc1.y+mCon.y)/2.0f;
|
|
c2x = (mAnc2.x+mCon.x)/2.0f;
|
|
c2y = (mAnc2.y+mCon.y)/2.0f;
|
|
|
|
a1.x = (c1x + c2x)/2.0f;
|
|
a1.y = (c1y + c2y)/2.0f;
|
|
|
|
// put the math into our 2 new curves
|
|
A->mAnc1 = this->mAnc1;
|
|
A->mCon.x = c1x;
|
|
A->mCon.y = c1y;
|
|
A->mAnc2 = a1;
|
|
B->mAnc1 = a1;
|
|
B->mCon.x = c2x;
|
|
B->mCon.y = c2y;
|
|
B->mAnc2 = this->mAnc2;
|
|
}
|
|
|
|
void FillOrInvertRect(nsIRenderingContext& aRC, nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight, PRBool aInvert)
|
|
{
|
|
if (aInvert) {
|
|
aRC.InvertRect(aX, aY, aWidth, aHeight);
|
|
} else {
|
|
aRC.FillRect(aX, aY, aWidth, aHeight);
|
|
}
|
|
}
|
|
|
|
void FillOrInvertRect(nsIRenderingContext& aRC, const nsRect& aRect, PRBool aInvert)
|
|
{
|
|
if (aInvert) {
|
|
aRC.InvertRect(aRect);
|
|
} else {
|
|
aRC.FillRect(aRect);
|
|
}
|
|
}
|
|
|