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79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsGfxRadioControlFrame.h"
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#include "nsRenderingContext.h"
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#include "nsDisplayList.h"
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using namespace mozilla;
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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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a11y::AccType
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nsGfxRadioControlFrame::AccessibleType()
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{
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return a11y::eHTMLRadioButtonType;
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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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nsRenderingContext* 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->StyleColor()->mColor);
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aCtx->FillEllipse(rect);
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}
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void
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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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nsFormControlFrame::BuildDisplayList(aBuilder, aDirtyRect, aLists);
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if (!IsVisibleForPainting(aBuilder))
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return;
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if (IsThemed())
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return; // The theme will paint the check, if any.
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bool checked = 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;
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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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