gecko/layout/xul/base/src/nsTextBoxFrame.h

145 lines
5.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Peter Annema <disttsc@bart.nl>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsTextBoxFrame_h___
#define nsTextBoxFrame_h___
#include "nsLeafBoxFrame.h"
class nsAccessKeyInfo;
class nsAsyncAccesskeyUpdate;
typedef nsLeafBoxFrame nsTextBoxFrameSuper;
class nsTextBoxFrame : public nsTextBoxFrameSuper
{
public:
// nsIBox
virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState);
virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState);
virtual nscoord GetBoxAscent(nsBoxLayoutState& aBoxLayoutState);
NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState);
virtual void MarkIntrinsicWidthsDirty();
enum CroppingStyle { CropNone, CropLeft, CropRight, CropCenter };
friend nsIFrame* NS_NewTextBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
NS_IMETHOD Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* asPrevInFlow);
virtual void Destroy();
NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aModType);
#ifdef DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const;
#endif
void UpdateAttributes(nsIAtom* aAttribute,
PRBool& aResize,
PRBool& aRedraw);
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists);
virtual ~nsTextBoxFrame();
void PaintTitle(nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsPoint aPt);
protected:
friend class nsAsyncAccesskeyUpdate;
// Should be called only by nsAsyncAccesskeyUpdate.
// Returns PR_TRUE if accesskey was updated.
PRBool UpdateAccesskey(nsWeakFrame& aWeakThis);
void UpdateAccessTitle();
void UpdateAccessIndex();
// REVIEW: SORRY! Couldn't resist devirtualizing these
void LayoutTitle(nsPresContext* aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aRect);
void CalculateUnderline(nsIRenderingContext& aRenderingContext);
void CalcTextSize(nsBoxLayoutState& aBoxLayoutState);
nsTextBoxFrame(nsIPresShell* aShell, nsStyleContext* aContext);
void CalculateTitleForWidth(nsPresContext* aPresContext,
nsIRenderingContext& aRenderingContext,
nscoord aWidth);
void GetTextSize(nsPresContext* aPresContext,
nsIRenderingContext& aRenderingContext,
const nsString& aString,
nsSize& aSize,
nscoord& aAscent);
nsresult RegUnregAccessKey(PRBool aDoReg);
private:
PRBool AlwaysAppendAccessKey();
PRBool InsertSeparatorBeforeAccessKey();
CroppingStyle mCropType;
nsString mTitle;
nsString mCroppedTitle;
nsString mAccessKey;
nscoord mTitleWidth;
nsAccessKeyInfo* mAccessKeyInfo;
PRPackedBool mNeedsRecalc;
PRPackedBool mNeedsReflowCallback;
nsSize mTextSize;
nscoord mAscent;
static PRBool gAlwaysAppendAccessKey;
static PRBool gAccessKeyPrefInitialized;
static PRBool gInsertSeparatorBeforeAccessKey;
static PRBool gInsertSeparatorPrefInitialized;
}; // class nsTextBoxFrame
#endif /* nsTextBoxFrame_h___ */