зеркало из https://github.com/mozilla/gecko-dev.git
123 строки
4.5 KiB
C++
123 строки
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
#include "nsLeafFrame.h"
|
|
#include "nsIStyleContext.h"
|
|
#include "nsCSSRendering.h"
|
|
#include "nsHTMLParts.h"
|
|
#include "nsIPresShell.h"
|
|
|
|
nsLeafFrame::nsLeafFrame(nsIContent* aContent, nsIFrame* aParentFrame)
|
|
: nsFrame(aContent, aParentFrame)
|
|
{
|
|
}
|
|
|
|
nsLeafFrame::~nsLeafFrame()
|
|
{
|
|
}
|
|
|
|
NS_METHOD nsLeafFrame::Paint(nsIPresContext& aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect)
|
|
{
|
|
const nsStyleDisplay* disp =
|
|
(const nsStyleDisplay*)mStyleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
if (disp->mVisible) {
|
|
const nsStyleColor* myColor =
|
|
(const nsStyleColor*)mStyleContext->GetStyleData(eStyleStruct_Color);
|
|
const nsStyleSpacing* mySpacing =
|
|
(const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing);
|
|
nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, this,
|
|
aDirtyRect, mRect, *myColor);
|
|
nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, this,
|
|
aDirtyRect, nsRect(0, 0, mRect.width, mRect.height),
|
|
*mySpacing, 0);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_METHOD nsLeafFrame::Reflow(nsIPresContext& aPresContext,
|
|
nsReflowMetrics& aDesiredSize,
|
|
const nsReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
NS_PRECONDITION(mState & NS_FRAME_IN_REFLOW, "frame is not in reflow");
|
|
|
|
// XXX add in code to check for width/height being set via css
|
|
// and if set use them instead of calling GetDesiredSize.
|
|
|
|
|
|
GetDesiredSize(&aPresContext, aReflowState, aDesiredSize);
|
|
AddBordersAndPadding(&aPresContext, aDesiredSize);
|
|
if (nsnull != aDesiredSize.maxElementSize) {
|
|
aDesiredSize.maxElementSize->width = aDesiredSize.width;
|
|
aDesiredSize.maxElementSize->height = aDesiredSize.height;
|
|
}
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
return NS_OK;
|
|
}
|
|
|
|
// XXX how should border&padding effect baseline alignment?
|
|
// => descent = borderPadding.bottom for example
|
|
void nsLeafFrame::AddBordersAndPadding(nsIPresContext* aPresContext,
|
|
nsReflowMetrics& aDesiredSize)
|
|
{
|
|
const nsStyleSpacing* space =
|
|
(const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing);
|
|
nsMargin borderPadding;
|
|
space->CalcBorderPaddingFor(this, borderPadding);
|
|
aDesiredSize.width += borderPadding.left + borderPadding.right;
|
|
aDesiredSize.height += borderPadding.top + borderPadding.bottom;
|
|
aDesiredSize.ascent = aDesiredSize.height;
|
|
aDesiredSize.descent = 0;
|
|
}
|
|
|
|
void nsLeafFrame::GetInnerArea(nsIPresContext* aPresContext,
|
|
nsRect& aInnerArea) const
|
|
{
|
|
const nsStyleSpacing* space =
|
|
(const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing);
|
|
nsMargin borderPadding;
|
|
space->CalcBorderPaddingFor(this, borderPadding);
|
|
aInnerArea.x = borderPadding.left;
|
|
aInnerArea.y = borderPadding.top;
|
|
aInnerArea.width = mRect.width -
|
|
(borderPadding.left + borderPadding.right);
|
|
aInnerArea.height = mRect.height -
|
|
(borderPadding.top + borderPadding.bottom);
|
|
}
|
|
|
|
NS_METHOD nsLeafFrame::ContentChanged(nsIPresShell* aShell,
|
|
nsIPresContext* aPresContext,
|
|
nsIContent* aChild,
|
|
nsISupports* aSubContent)
|
|
{
|
|
// Generate a reflow command with this frame as the target frame
|
|
nsIReflowCommand* cmd;
|
|
nsresult result;
|
|
|
|
result = NS_NewHTMLReflowCommand(&cmd, this, nsIReflowCommand::ContentChanged);
|
|
if (NS_OK == result) {
|
|
aShell->AppendReflowCommand(cmd);
|
|
NS_RELEASE(cmd);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|