2001-09-29 00:14:13 +04:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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2004-04-18 18:30:37 +04:00
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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1999-08-06 09:13:07 +04:00
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*
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2004-04-18 18:30:37 +04:00
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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1999-08-06 09:13:07 +04:00
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*
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2001-09-29 00:14:13 +04:00
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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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1999-08-06 09:13:07 +04:00
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*
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1999-11-06 06:40:37 +03:00
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* The Original Code is mozilla.org code.
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*
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2004-04-18 18:30:37 +04:00
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* The Initial Developer of the Original Code is
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2001-09-29 00:14:13 +04:00
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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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1999-11-06 06:40:37 +03:00
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*
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2001-09-29 00:14:13 +04:00
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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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2004-04-18 18:30:37 +04:00
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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2001-09-29 00:14:13 +04:00
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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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2004-04-18 18:30:37 +04:00
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* use your version of this file under the terms of the MPL, indicate your
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2001-09-29 00:14:13 +04:00
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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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2004-04-18 18:30:37 +04:00
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* the terms of any one of the MPL, the GPL or the LGPL.
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2001-09-29 00:14:13 +04:00
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*
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* ***** END LICENSE BLOCK ***** */
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1999-08-06 09:13:07 +04:00
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#include "nsGfxCheckboxControlFrame.h"
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#include "nsIContent.h"
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2006-07-13 09:05:54 +04:00
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#include "nsCOMPtr.h"
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2000-03-24 18:02:02 +03:00
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#include "nsCSSRendering.h"
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2011-04-08 05:04:40 +04:00
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#include "nsRenderingContext.h"
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2001-08-17 07:13:07 +04:00
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#ifdef ACCESSIBILITY
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2011-01-28 07:38:14 +03:00
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#include "nsAccessibilityService.h"
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2001-08-17 07:13:07 +04:00
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#endif
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2001-04-01 05:01:33 +04:00
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#include "nsIServiceManager.h"
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2002-06-04 04:44:04 +04:00
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#include "nsIDOMHTMLInputElement.h"
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2006-01-26 05:29:17 +03:00
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#include "nsDisplayList.h"
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2009-01-19 21:31:32 +03:00
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#include "nsCSSAnonBoxes.h"
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static void
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2009-04-03 12:45:17 +04:00
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PaintCheckMark(nsIFrame* aFrame,
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2011-04-08 05:04:40 +04:00
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nsRenderingContext* aCtx,
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2009-04-03 12:45:17 +04:00
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const nsRect& aDirtyRect,
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nsPoint aPt)
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{
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nsRect rect(aPt, aFrame->GetSize());
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rect.Deflate(aFrame->GetUsedBorderAndPadding());
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2006-07-13 09:05:54 +04:00
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// Points come from the coordinates on a 7X7 unit box centered at 0,0
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const PRInt32 checkPolygonX[] = { -3, -1, 3, 3, -1, -3 };
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const PRInt32 checkPolygonY[] = { -1, 1, -3, -1, 3, 1 };
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const PRInt32 checkNumPoints = sizeof(checkPolygonX) / sizeof(PRInt32);
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2009-04-03 12:45:17 +04:00
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const PRInt32 checkSize = 9; // 2 units of padding on either side
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// of the 7x7 unit checkmark
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// Scale the checkmark based on the smallest dimension
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nscoord paintScale = NS_MIN(rect.width, rect.height) / checkSize;
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2009-04-03 12:45:17 +04:00
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nsPoint paintCenter(rect.x + rect.width / 2,
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rect.y + rect.height / 2);
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2006-07-13 09:05:54 +04:00
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nsPoint paintPolygon[checkNumPoints];
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// Convert checkmark for screen rendering
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for (PRInt32 polyIndex = 0; polyIndex < checkNumPoints; polyIndex++) {
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paintPolygon[polyIndex] = paintCenter +
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nsPoint(checkPolygonX[polyIndex] * paintScale,
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checkPolygonY[polyIndex] * paintScale);
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}
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2006-07-13 09:05:54 +04:00
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2009-04-03 12:45:17 +04:00
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aCtx->SetColor(aFrame->GetStyleColor()->mColor);
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aCtx->FillPolygon(paintPolygon, checkNumPoints);
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}
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2009-01-22 03:07:44 +03:00
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static void
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PaintIndeterminateMark(nsIFrame* aFrame,
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2011-04-08 05:04:40 +04:00
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nsRenderingContext* aCtx,
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2009-04-03 12:45:17 +04:00
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const nsRect& aDirtyRect,
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nsPoint aPt)
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{
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nsRect rect(aPt, aFrame->GetSize());
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rect.Deflate(aFrame->GetUsedBorderAndPadding());
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rect.y += (rect.height - rect.height/4) / 2;
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rect.height /= 4;
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2009-04-03 12:45:17 +04:00
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aCtx->SetColor(aFrame->GetStyleColor()->mColor);
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aCtx->FillRect(rect);
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2009-01-22 03:07:44 +03:00
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}
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2000-02-09 22:34:39 +03:00
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//------------------------------------------------------------
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nsIFrame*
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NS_NewGfxCheckboxControlFrame(nsIPresShell* aPresShell,
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nsStyleContext* aContext)
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{
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return new (aPresShell) nsGfxCheckboxControlFrame(aContext);
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1999-08-06 09:13:07 +04:00
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}
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2009-09-12 20:49:24 +04:00
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NS_IMPL_FRAMEARENA_HELPERS(nsGfxCheckboxControlFrame)
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1999-08-11 08:45:49 +04:00
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2000-02-09 22:34:39 +03:00
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//------------------------------------------------------------
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// Initialize GFX-rendered state
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nsGfxCheckboxControlFrame::nsGfxCheckboxControlFrame(nsStyleContext* aContext)
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: nsFormControlFrame(aContext)
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1999-08-06 09:13:07 +04:00
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{
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}
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2000-03-24 18:02:02 +03:00
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nsGfxCheckboxControlFrame::~nsGfxCheckboxControlFrame()
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{
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}
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2009-04-02 14:03:52 +04:00
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#ifdef ACCESSIBILITY
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2010-06-28 16:02:03 +04:00
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already_AddRefed<nsAccessible>
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nsGfxCheckboxControlFrame::CreateAccessible()
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2001-05-18 03:52:32 +04:00
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{
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2011-01-28 07:38:14 +03:00
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nsAccessibilityService* accService = nsIPresShell::AccService();
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if (accService) {
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2010-06-28 16:02:03 +04:00
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return accService->CreateHTMLCheckboxAccessible(mContent,
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PresContext()->PresShell());
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2001-05-18 03:52:32 +04:00
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}
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2010-06-28 16:02:03 +04:00
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return nsnull;
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2001-05-18 03:52:32 +04:00
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}
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2001-08-17 07:13:07 +04:00
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#endif
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2001-05-18 03:52:32 +04:00
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2000-02-09 22:34:39 +03:00
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//------------------------------------------------------------
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2006-01-26 05:29:17 +03:00
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NS_IMETHODIMP
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nsGfxCheckboxControlFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists)
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{
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nsresult rv = nsFormControlFrame::BuildDisplayList(aBuilder, aDirtyRect,
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aLists);
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2006-01-26 05:29:17 +03:00
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NS_ENSURE_SUCCESS(rv, rv);
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// Get current checked state through content model.
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2009-01-22 03:07:44 +03:00
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if ((!IsChecked() && !IsIndeterminate()) || !IsVisibleForPainting(aBuilder))
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2006-01-26 05:29:17 +03:00
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return NS_OK; // we're not checked or not visible, nothing to paint.
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if (IsThemed())
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return NS_OK; // No need to paint the checkmark. The theme will do it.
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2009-04-03 12:45:17 +04:00
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return aLists.Content()->AppendNewToTop(new (aBuilder)
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2010-08-13 14:01:13 +04:00
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nsDisplayGeneric(aBuilder, this,
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IsIndeterminate()
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? PaintIndeterminateMark : PaintCheckMark,
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2010-07-16 01:07:49 +04:00
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"CheckedCheckbox",
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nsDisplayItem::TYPE_CHECKED_CHECKBOX));
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1999-08-06 09:13:07 +04:00
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}
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2000-02-09 22:34:39 +03:00
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//------------------------------------------------------------
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2011-09-29 10:19:26 +04:00
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bool
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nsGfxCheckboxControlFrame::IsChecked()
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{
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2002-01-24 22:04:55 +03:00
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nsCOMPtr<nsIDOMHTMLInputElement> elem(do_QueryInterface(mContent));
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2011-09-29 10:19:26 +04:00
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bool retval = false;
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2002-01-24 22:04:55 +03:00
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elem->GetChecked(&retval);
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return retval;
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1999-08-06 09:13:07 +04:00
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}
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2009-01-22 03:07:44 +03:00
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2011-09-29 10:19:26 +04:00
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bool
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nsGfxCheckboxControlFrame::IsIndeterminate()
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{
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2010-08-05 06:40:18 +04:00
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nsCOMPtr<nsIDOMHTMLInputElement> elem(do_QueryInterface(mContent));
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2011-09-29 10:19:26 +04:00
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bool retval = false;
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2009-01-22 03:07:44 +03:00
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elem->GetIndeterminate(&retval);
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return retval;
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}
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