layout/forms/nsGfxRadioControlFrame.cpp
author Nathan Froyd <froydnj@mozilla.com>
Wed, 07 Oct 2015 15:05:02 -0400
changeset 301510 1f51d1614b9a58e41dd3a1bf2dc6aad34dbb2170
parent 237446 8714fdc213ca6bed614ee7981e1fe9f83e7cb67a
child 301514 91d4539e00cecb658604e021675a923c60ef3235
permissions -rw-r--r--
Bug 1207245 - part 3 - switch all uses of mozilla::RefPtr<T> to nsRefPtr<T>; r=ehsan This commit was generated using the following script, executed at the top level of a typical source code checkout. # Don't modify select files in mfbt/ because it's not worth trying to # tease out the dependencies currently. # # Don't modify anything in media/gmp-clearkey/0.1/ because those files # use their own RefPtr, defined in their own RefCounted.h. find . -name '*.cpp' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ grep -v 'mfbt/RefPtr.h' | \ grep -v 'mfbt/nsRefPtr.h' | \ grep -v 'mfbt/RefCounted.h' | \ grep -v 'media/gmp-clearkey/0.1/' | \ xargs perl -p -i -e ' s/mozilla::RefPtr/nsRefPtr/g; # handle declarations in headers s/\bRefPtr</nsRefPtr</g; # handle local variables in functions s#mozilla/RefPtr.h#mozilla/nsRefPtr.h#; # handle #includes s#mfbt/RefPtr.h#mfbt/nsRefPtr.h#; # handle strange #includes ' # |using mozilla::RefPtr;| is OK; |using nsRefPtr;| is invalid syntax. find . -name '*.cpp' -o -name '*.mm' | xargs sed -i -e '/using nsRefPtr/d' # RefPtr.h used |byRef| for dealing with COM-style outparams. # nsRefPtr.h uses |getter_AddRefs|. # Fixup that mismatch. find . -name '*.cpp' | \ xargs perl -p -i -e 's/byRef/getter_AddRefs/g'

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsGfxRadioControlFrame.h"

#include "gfx2DGlue.h"
#include "gfxUtils.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/PathHelpers.h"
#include "nsLayoutUtils.h"
#include "nsRenderingContext.h"
#include "nsDisplayList.h"

using namespace mozilla;
using namespace mozilla::gfx;

nsIFrame*
NS_NewGfxRadioControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
  return new (aPresShell) nsGfxRadioControlFrame(aContext);
}

NS_IMPL_FRAMEARENA_HELPERS(nsGfxRadioControlFrame)

nsGfxRadioControlFrame::nsGfxRadioControlFrame(nsStyleContext* aContext):
  nsFormControlFrame(aContext)
{
}

nsGfxRadioControlFrame::~nsGfxRadioControlFrame()
{
}

#ifdef ACCESSIBILITY
a11y::AccType
nsGfxRadioControlFrame::AccessibleType()
{
  return a11y::eHTMLRadioButtonType;
}
#endif

//--------------------------------------------------------------
// Draw the dot for a non-native radio button in the checked state.
static void
PaintCheckedRadioButton(nsIFrame* aFrame,
                        nsRenderingContext* aCtx,
                        const nsRect& aDirtyRect,
                        nsPoint aPt)
{
  // The dot is an ellipse 2px on all sides smaller than the content-box,
  // drawn in the foreground color.
  nsRect rect(aPt, aFrame->GetSize());
  rect.Deflate(aFrame->GetUsedBorderAndPadding());
  rect.Deflate(nsPresContext::CSSPixelsToAppUnits(2),
               nsPresContext::CSSPixelsToAppUnits(2));

  Rect devPxRect =
    ToRect(nsLayoutUtils::RectToGfxRect(rect,
                                        aFrame->PresContext()->AppUnitsPerDevPixel()));

  ColorPattern color(ToDeviceColor(aFrame->StyleColor()->mColor));

  DrawTarget* drawTarget = aCtx->GetDrawTarget();
  nsRefPtr<PathBuilder> builder = drawTarget->CreatePathBuilder();
  AppendEllipseToPath(builder, devPxRect.Center(), devPxRect.Size());
  nsRefPtr<Path> ellipse = builder->Finish();
  drawTarget->Fill(ellipse, color);
}

void
nsGfxRadioControlFrame::BuildDisplayList(nsDisplayListBuilder*   aBuilder,
                                         const nsRect&           aDirtyRect,
                                         const nsDisplayListSet& aLists)
{
  nsFormControlFrame::BuildDisplayList(aBuilder, aDirtyRect, aLists);

  if (!IsVisibleForPainting(aBuilder))
    return;
  
  if (IsThemed())
    return; // The theme will paint the check, if any.

  bool checked = true;
  GetCurrentCheckState(&checked); // Get check state from the content model
  if (!checked)
    return;
    
  aLists.Content()->AppendNewToTop(new (aBuilder)
    nsDisplayGeneric(aBuilder, this, PaintCheckedRadioButton,
                     "CheckedRadioButton",
                     nsDisplayItem::TYPE_CHECKED_RADIOBUTTON));
}