gecko/layout/xul/nsTextBoxFrame.h
Nicholas Nethercote 102bc2324f Bug 1231550 - Use DrawTarget instead of gfxContext and/or nsRenderingContext in many places in font/text code. r=jfkthame.
AutoTextRun now only needs a DrawTarget instead of an nsRenderingContext, and
similar nsRenderingContext/gfxContext-to-DrawTarget replacements can be
propagated a long way up the call graph. This patch replaces 93 occurrences of
nsRenderingContext and 135 occurrences of gfxContext with DrawTarget; that's
13% of them.

The patch is mostly plumbing changes. A couple of not-entirely-plumbing
changes:

- It adds a comment about the null check in
  gfxGlyphExtents::GetTightGlyphExtentsAppUnits().

- A couple of functions simply had an unused gfxContext or nsRenderingContext
  parameter removed, e.g. SetLineBreaks().
2015-12-15 13:56:41 -08:00

136 lines
4.5 KiB
C++

/* -*- 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/. */
#ifndef nsTextBoxFrame_h___
#define nsTextBoxFrame_h___
#include "mozilla/Attributes.h"
#include "nsLeafBoxFrame.h"
class nsAccessKeyInfo;
class nsAsyncAccesskeyUpdate;
class nsFontMetrics;
typedef nsLeafBoxFrame nsTextBoxFrameSuper;
class nsTextBoxFrame : public nsTextBoxFrameSuper
{
public:
NS_DECL_QUERYFRAME_TARGET(nsTextBoxFrame)
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS
virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState) override;
virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState) override;
virtual nscoord GetBoxAscent(nsBoxLayoutState& aBoxLayoutState) override;
NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState) override;
virtual void MarkIntrinsicISizesDirty() override;
enum CroppingStyle { CropNone, CropLeft, CropRight, CropCenter };
friend nsIFrame* NS_NewTextBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
virtual void Init(nsIContent* aContent,
nsContainerFrame* aParent,
nsIFrame* asPrevInFlow) override;
virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
virtual nsresult AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType) override;
#ifdef DEBUG_FRAME_DUMP
virtual nsresult GetFrameName(nsAString& aResult) const override;
#endif
void UpdateAttributes(nsIAtom* aAttribute,
bool& aResize,
bool& aRedraw);
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists) override;
virtual ~nsTextBoxFrame();
void PaintTitle(nsRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsPoint aPt,
const nscolor* aOverrideColor);
nsRect GetComponentAlphaBounds();
virtual bool ComputesOwnOverflowArea() override;
void GetCroppedTitle(nsString& aTitle) const { aTitle = mCroppedTitle; }
virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) override;
protected:
friend class nsAsyncAccesskeyUpdate;
friend class nsDisplayXULTextBox;
// Should be called only by nsAsyncAccesskeyUpdate.
// Returns true if accesskey was updated.
bool UpdateAccesskey(nsWeakFrame& aWeakThis);
void UpdateAccessTitle();
void UpdateAccessIndex();
// Recompute our title, ignoring the access key but taking into
// account text-transform.
void RecomputeTitle();
// REVIEW: SORRY! Couldn't resist devirtualizing these
void LayoutTitle(nsPresContext* aPresContext,
nsRenderingContext& aRenderingContext,
const nsRect& aRect);
void CalculateUnderline(DrawTarget* aDrawTarget, nsFontMetrics& aFontMetrics);
void CalcTextSize(nsBoxLayoutState& aBoxLayoutState);
void CalcDrawRect(nsRenderingContext &aRenderingContext);
explicit nsTextBoxFrame(nsStyleContext* aContext);
nscoord CalculateTitleForWidth(nsRenderingContext& aRenderingContext,
nscoord aWidth);
void GetTextSize(nsRenderingContext& aRenderingContext,
const nsString& aString,
nsSize& aSize,
nscoord& aAscent);
nsresult RegUnregAccessKey(bool aDoReg);
private:
bool AlwaysAppendAccessKey();
bool InsertSeparatorBeforeAccessKey();
void DrawText(nsRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
const nsRect& aTextRect,
const nscolor* aOverrideColor);
nsString mTitle;
nsString mCroppedTitle;
nsString mAccessKey;
nsSize mTextSize;
nsRect mTextDrawRect;
nsAccessKeyInfo* mAccessKeyInfo;
CroppingStyle mCropType;
nscoord mAscent;
bool mNeedsRecalc;
bool mNeedsReflowCallback;
static bool gAlwaysAppendAccessKey;
static bool gAccessKeyPrefInitialized;
static bool gInsertSeparatorBeforeAccessKey;
static bool gInsertSeparatorPrefInitialized;
}; // class nsTextBoxFrame
#endif /* nsTextBoxFrame_h___ */