michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsGfxRadioControlFrame.h"
michael@0: #include "nsRenderingContext.h"
michael@0: #include "nsDisplayList.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: 
michael@0: nsIFrame*
michael@0: NS_NewGfxRadioControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
michael@0: {
michael@0:   return new (aPresShell) nsGfxRadioControlFrame(aContext);
michael@0: }
michael@0: 
michael@0: NS_IMPL_FRAMEARENA_HELPERS(nsGfxRadioControlFrame)
michael@0: 
michael@0: nsGfxRadioControlFrame::nsGfxRadioControlFrame(nsStyleContext* aContext):
michael@0:   nsFormControlFrame(aContext)
michael@0: {
michael@0: }
michael@0: 
michael@0: nsGfxRadioControlFrame::~nsGfxRadioControlFrame()
michael@0: {
michael@0: }
michael@0: 
michael@0: #ifdef ACCESSIBILITY
michael@0: a11y::AccType
michael@0: nsGfxRadioControlFrame::AccessibleType()
michael@0: {
michael@0:   return a11y::eHTMLRadioButtonType;
michael@0: }
michael@0: #endif
michael@0: 
michael@0: //--------------------------------------------------------------
michael@0: // Draw the dot for a non-native radio button in the checked state.
michael@0: static void
michael@0: PaintCheckedRadioButton(nsIFrame* aFrame,
michael@0:                         nsRenderingContext* aCtx,
michael@0:                         const nsRect& aDirtyRect,
michael@0:                         nsPoint aPt)
michael@0: {
michael@0:   // The dot is an ellipse 2px on all sides smaller than the content-box,
michael@0:   // drawn in the foreground color.
michael@0:   nsRect rect(aPt, aFrame->GetSize());
michael@0:   rect.Deflate(aFrame->GetUsedBorderAndPadding());
michael@0:   rect.Deflate(nsPresContext::CSSPixelsToAppUnits(2),
michael@0:                nsPresContext::CSSPixelsToAppUnits(2));
michael@0: 
michael@0:   aCtx->SetColor(aFrame->StyleColor()->mColor);
michael@0:   aCtx->FillEllipse(rect);
michael@0: }
michael@0: 
michael@0: void
michael@0: nsGfxRadioControlFrame::BuildDisplayList(nsDisplayListBuilder*   aBuilder,
michael@0:                                          const nsRect&           aDirtyRect,
michael@0:                                          const nsDisplayListSet& aLists)
michael@0: {
michael@0:   nsFormControlFrame::BuildDisplayList(aBuilder, aDirtyRect, aLists);
michael@0: 
michael@0:   if (!IsVisibleForPainting(aBuilder))
michael@0:     return;
michael@0:   
michael@0:   if (IsThemed())
michael@0:     return; // The theme will paint the check, if any.
michael@0: 
michael@0:   bool checked = true;
michael@0:   GetCurrentCheckState(&checked); // Get check state from the content model
michael@0:   if (!checked)
michael@0:     return;
michael@0:     
michael@0:   aLists.Content()->AppendNewToTop(new (aBuilder)
michael@0:     nsDisplayGeneric(aBuilder, this, PaintCheckedRadioButton,
michael@0:                      "CheckedRadioButton",
michael@0:                      nsDisplayItem::TYPE_CHECKED_RADIOBUTTON));
michael@0: }