зеркало из https://github.com/mozilla/gecko-dev.git
125 строки
4.3 KiB
C++
125 строки
4.3 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: MPL 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 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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*
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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 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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* 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 MPL, 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 MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsGfxRadioControlFrame.h"
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#include "nsIContent.h"
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#include "nsCOMPtr.h"
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#include "nsCSSRendering.h"
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#ifdef ACCESSIBILITY
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#include "nsAccessibilityService.h"
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#endif
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#include "nsIServiceManager.h"
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#include "nsITheme.h"
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#include "nsDisplayList.h"
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#include "nsCSSAnonBoxes.h"
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nsIFrame*
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NS_NewGfxRadioControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsGfxRadioControlFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsGfxRadioControlFrame)
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nsGfxRadioControlFrame::nsGfxRadioControlFrame(nsStyleContext* aContext):
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nsFormControlFrame(aContext)
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{
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}
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nsGfxRadioControlFrame::~nsGfxRadioControlFrame()
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{
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}
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#ifdef ACCESSIBILITY
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already_AddRefed<nsAccessible>
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nsGfxRadioControlFrame::CreateAccessible()
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{
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nsAccessibilityService* accService = nsIPresShell::AccService();
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if (accService) {
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return accService->CreateHTMLRadioButtonAccessible(mContent,
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PresContext()->PresShell());
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}
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return nsnull;
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}
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#endif
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//--------------------------------------------------------------
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// Draw the dot for a non-native radio button in the checked state.
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static void
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PaintCheckedRadioButton(nsIFrame* aFrame,
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nsIRenderingContext* aCtx,
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const nsRect& aDirtyRect,
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nsPoint aPt)
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{
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// The dot is an ellipse 2px on all sides smaller than the content-box,
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// drawn in the foreground color.
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nsRect rect(aPt, aFrame->GetSize());
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rect.Deflate(aFrame->GetUsedBorderAndPadding());
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rect.Deflate(nsPresContext::CSSPixelsToAppUnits(2),
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nsPresContext::CSSPixelsToAppUnits(2));
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aCtx->SetColor(aFrame->GetStyleColor()->mColor);
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aCtx->FillEllipse(rect);
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}
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NS_IMETHODIMP
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nsGfxRadioControlFrame::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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NS_ENSURE_SUCCESS(rv, rv);
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if (!IsVisibleForPainting(aBuilder))
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return NS_OK;
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if (IsThemed())
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return NS_OK; // The theme will paint the check, if any.
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PRBool checked = PR_TRUE;
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GetCurrentCheckState(&checked); // Get check state from the content model
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if (!checked)
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return NS_OK;
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return aLists.Content()->AppendNewToTop(new (aBuilder)
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nsDisplayGeneric(aBuilder, this, PaintCheckedRadioButton,
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"CheckedRadioButton",
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nsDisplayItem::TYPE_CHECKED_RADIOBUTTON));
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}
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