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553 lines
22 KiB
C++
553 lines
22 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsFormControlHelper_h___
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#define nsFormControlHelper_h___
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#include "nsIFormControlFrame.h"
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#include "nsIFormManager.h"
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#include "nsISupports.h"
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#include "nsIWidget.h"
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#include "nsLeafFrame.h"
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#include "nsCoord.h"
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#include "nsIStyleContext.h"
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#include "nsIPresContext.h"
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class nsIView;
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//class nsIPresContext;
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class nsStyleCoord;
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class nsFormFrame;
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//class nsIStyleContext;
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#define CSS_NOTSET -1
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#define ATTR_NOTSET -1
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/**
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* Enumeration of possible mouse states used to detect mouse clicks
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*/
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enum nsMouseState {
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eMouseNone,
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eMouseEnter,
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eMouseExit,
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eMouseDown,
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eMouseUp
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};
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struct nsInputDimensionSpec
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{
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nsIAtom* mColSizeAttr; // attribute used to determine width
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PRBool mColSizeAttrInPixels; // is attribute value in pixels (otherwise num chars)
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nsIAtom* mColValueAttr; // attribute used to get value to determine size
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// if not determined above
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nsString* mColDefaultValue; // default value if not determined above
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nscoord mColDefaultSize; // default width if not determined above
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PRBool mColDefaultSizeInPixels; // is default width in pixels (otherswise num chars)
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nsIAtom* mRowSizeAttr; // attribute used to determine height
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nscoord mRowDefaultSize; // default height if not determined above
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nsInputDimensionSpec(nsIAtom* aColSizeAttr, PRBool aColSizeAttrInPixels,
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nsIAtom* aColValueAttr, nsString* aColDefaultValue,
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nscoord aColDefaultSize, PRBool aColDefaultSizeInPixels,
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nsIAtom* aRowSizeAttr, nscoord aRowDefaultSize)
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: mColSizeAttr(aColSizeAttr), mColSizeAttrInPixels(aColSizeAttrInPixels),
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mColValueAttr(aColValueAttr),
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mColDefaultValue(aColDefaultValue), mColDefaultSize(aColDefaultSize),
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mColDefaultSizeInPixels(aColDefaultSizeInPixels),
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mRowSizeAttr(aRowSizeAttr), mRowDefaultSize(aRowDefaultSize)
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{
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}
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};
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/**
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* nsFormControlHelper is the base class for frames of form controls. It
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* provides a uniform way of creating widgets, resizing, and painting.
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* @see nsLeafFrame and its base classes for more info
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*/
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class nsFormControlHelper
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{
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public:
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static nscoord CalculateSize (nsIPresContext* aPresContext, nsIFormControlFrame* aFrame,
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const nsSize& aCSSSize, nsInputDimensionSpec& aDimensionSpec,
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nsSize& aBounds, PRBool& aWidthExplicit,
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PRBool& aHeightExplicit, nscoord& aRowSize,
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nsIRenderingContext *aRendContext);
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static nscoord GetTextSize(nsIPresContext& aContext, nsIFormControlFrame* aFrame,
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const nsString& aString, nsSize& aSize,
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nsIRenderingContext *aRendContext);
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static nscoord GetTextSize(nsIPresContext& aContext, nsIFormControlFrame* aFrame,
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PRInt32 aNumChars, nsSize& aSize,
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nsIRenderingContext *aRendContext);
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static void GetFont(nsIFormControlFrame * aFormFrame,
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nsIPresContext* aPresContext,
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nsIStyleContext * aStyleContext,
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nsFont& aFont);
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// XXX similar functionality needs to be added to widget library and these
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// need to change to use it.
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static nscoord GetScrollbarWidth(float aPixToTwip);
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/*virtual nscoord GetVerticalBorderWidth(float aPixToTwip) const;
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virtual nscoord GetHorizontalBorderWidth(float aPixToTwip) const;
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virtual nscoord GetVerticalInsidePadding(float aPixToTwip,
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nscoord aInnerHeight) const;
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virtual nscoord GetHorizontalInsidePadding(nsIPresContext& aPresContext,
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float aPixToTwip,
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nscoord aInnerWidth,
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nscoord aCharWidth) const;
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*/
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static nsCompatibility GetRepChars(nsIPresContext& aPresContext, char& char1, char& char2);
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//
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//-------------------------------------------------------------------------------------
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// Utility methods for managing checkboxes and radiobuttons
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//-------------------------------------------------------------------------------------
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//
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/**
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* Get the state of the checked attribute.
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* @param aState set to PR_TRUE if the checked attribute is set,
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* PR_FALSE if the checked attribute has been removed
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* @returns NS_OK or NS_CONTENT_ATTR_HAS_VALUE
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*/
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nsresult GetCurrentCheckState(PRBool* aState);
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/**
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* Set the state of the checked attribute.
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* @param aState set to PR_TRUE to set the attribute,
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* PR_FALSE to unset the attribute
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* @returns NS_OK or NS_CONTENT_ATTR_HAS_VALUE
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*/
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nsresult SetCurrentCheckState(PRBool aState);
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/**
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* Get the state of the defaultchecked attribute.
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* @param aState set to PR_TRUE if the defaultchecked attribute is set,
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* PR_FALSE if the defaultchecked attribute has been removed
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* @returns NS_OK or NS_CONTENT_ATTR_HAS_VALUE
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*/
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nsresult GetDefaultCheckState(PRBool* aState);
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//nscoord GetStyleDim(nsIPresContext& aPresContext, nscoord aMaxDim,
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// nscoord aMaxWidth, const nsStyleCoord& aCoord);
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//
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//-------------------------------------------------------------------------------------
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// Utility methods for rendering Form Elements using GFX
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//-------------------------------------------------------------------------------------
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//
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// XXX: The following location for the paint code is TEMPORARY.
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// It is being used to get printing working
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// under windows. Later it will be used to GFX-render the controls to the display.
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// Expect this code to repackaged and moved to a new location in the future.
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/**
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* Enumeration of possible mouse states used to detect mouse clicks
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*/
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enum nsArrowDirection {
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eArrowDirection_Left,
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eArrowDirection_Right,
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eArrowDirection_Up,
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eArrowDirection_Down
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};
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/**
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* Scale, translate and convert an arrow of poitns from nscoord's to nsPoints's.
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*
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* @param aNumberOfPoints number of (x,y) pairs
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* @param aPoints arrow of points to convert
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* @param aScaleFactor scale factor to apply to each points translation.
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* @param aX x coordinate to add to each point after scaling
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* @param aY y coordinate to add to each point after scaling
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* @param aCenterX x coordinate of the center point in the original array of points.
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* @param aCenterY y coordiante of the center point in the original array of points.
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*/
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static void SetupPoints(PRUint32 aNumberOfPoints, nscoord* aPoints,
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nsPoint* aPolygon, nscoord aScaleFactor, nscoord aX, nscoord aY,
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nscoord aCenterX, nscoord aCenterY);
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/**
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* Paint a fat line. The line is drawn as a polygon with a specified width.
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*
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* @param aRenderingContext the rendering context
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* @param aSX starting x in pixels
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* @param aSY starting y in pixels
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* @param aEX ending x in pixels
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* @param aEY ending y in pixels
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* @param aHorz PR_TRUE if aWidth is added to x coordinates to form polygon. If
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* PR_FALSE then aWidth as added to the y coordinates.
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* @param aOnePixel number of twips in a single pixel.
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*/
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static void PaintLine(nsIRenderingContext& aRenderingContext,
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nscoord aSX, nscoord aSY, nscoord aEX, nscoord aEY,
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PRBool aHorz, nscoord aWidth, nscoord aOnePixel);
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/**
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* Draw an arrow glyph.
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*
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* @param aRenderingContext the rendering context
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* @param aSX upper left x coordinate pixels
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* @param aSY upper left y coordinate pixels
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* @param aType @see nsArrowDirection enumeration
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* @param aOnePixel number of twips in a single pixel.
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*/
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static void PaintArrowGlyph(nsIRenderingContext& aRenderingContext,
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nscoord aSX, nscoord aSY, nsArrowDirection aArrowDirection,
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nscoord aOnePixel);
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/**
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* Draw an arrow
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*
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* @param aArrowDirection @see nsArrowDirection enumeration
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* @param aRenderingContext the rendering context
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* @param aPresContext the presentation context
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* @param aDirtyRect rectangle requiring update
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* @param aOnePixel number of TWIPS in a single pixel
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* @param aColor color of the arrow glph
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* @param aSpacing spacing for the arrow background
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* @param aForFrame frame which the arrow will be rendered into.
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* @param aFrameRect rectangle for the frame specified by aForFrame
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*/
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static void PaintArrow(nsArrowDirection aArrowDirection,
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nsIRenderingContext& aRenderingContext,
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nsIPresContext& aPresContext,
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const nsRect& aDirtyRect,
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nsRect& aRect,
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nscoord aOnePixel,
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nsIStyleContext* aArrowStyle,
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const nsStyleSpacing& aSpacing,
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nsIFrame* aForFrame,
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nsRect& aFrameRect);
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/**
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* Paint a scrollbar
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*
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* @param aRenderingContext the rendering context
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* @param aPresContext the presentation context
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* @param aDirtyRect rectangle requiring update
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* @param aRect width and height of the scrollbar
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* @param aHorizontal if TRUE scrollbar is drawn horizontally, vertical if FALSE
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* @param aOnePixel number TWIPS per pixel
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* @param aScrollbarStyleContext style context for the scrollbar
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* @param aScrollbarArrowStyleContext style context for the scrollbar arrow
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* @param aForFrame the frame that the scrollbar will be rendered in to
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* @param aFrameRect the rectangle for the frame passed as aForFrame
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*/
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static void PaintScrollbar(nsIRenderingContext& aRenderingContext,
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nsIPresContext& aPresContext,
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const nsRect& aDirtyRect,
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nsRect& aRect,
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PRBool aHorizontal,
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nscoord aOnePixel,
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nsIStyleContext* aScrollbarStyleContext,
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nsIStyleContext* aScrollbarArrowStyleContext,
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nsIFrame* aForFrame,
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nsRect& aFrameRect);
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/**
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* Paint a fixed size checkmark
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*
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* @param aRenderingContext the rendering context
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* @param aPixelsToTwips scale factor for convering pixels to twips.
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*/
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static void PaintFixedSizeCheckMark(nsIRenderingContext& aRenderingContext,
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float aPixelsToTwips);
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/**
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* Paint a fixed size checkmark border
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*
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* @param aRenderingContext the rendering context
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* @param aPixelsToTwips scale factor for convering pixels to twips.
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* @param aBackgroundColor color for background of checkbox
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*/
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static void PaintFixedSizeCheckMarkBorder(nsIRenderingContext& aRenderingContext,
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float aPixelsToTwips, const nsStyleColor& aBackgroundColor);
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/**
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* Paint a rectangular button. Includes background, string, and focus indicator
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*
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* @param aPresContext the presentation context
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* @param aRenderingContext the rendering context
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* @param aDirtyRect rectangle requiring update
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* @param aWidth width the checkmark border in TWIPS
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* @param aHeight height of the checkmark border in TWIPS
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* @param aShift if PR_TRUE offset button as if it were pressed
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* @param aShowFocus if PR_TRUE draw focus rectangle over button
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* @param aStyleContext style context used for drawing button background
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* @param aLabel label for button
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* @param aForFrame the frame that the scrollbar will be rendered in to
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*/
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static void PaintRectangularButton(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect, PRUint32 aWidth,
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PRUint32 aHeight, PRBool aShift, PRBool aShowFocus,
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nsIStyleContext* aStyleContext, nsString& aLabel,
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nsIFrame* aForFrame);
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/**
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* Paint a focus indicator.
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*
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* @param aRenderingContext the rendering context
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* @param aDirtyRect rectangle requiring update
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* @param aInside border inside
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* @param aOutside border outside
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*/
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static void PaintFocus(nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect, nsRect& aInside, nsRect& aOutside);
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/**
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* Paint a circular border
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*
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* @param aPresContext the presentation context
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* @param aRenderingContext the rendering context
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* @param aDirtyRect rectangle requiring update
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* @param aStyleContext style context specifying colors and spacing
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* @param aInset if PR_TRUE draw inset, otherwise draw outset
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* @param aForFrame the frame that the scrollbar will be rendered in to
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* @param aWidth width of the border in TWIPS
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* @param aHeight height ofthe border in TWIPS
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*/
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static void PaintCircularBorder(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect, nsIStyleContext* aStyleContext, PRBool aInset,
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nsIFrame* aForFrame, PRUint32 aWidth, PRUint32 aHeight);
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#if 0
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//******************************************************************
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//******************************************************************
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//******************************************************************
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//******************************************************************
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//******************************************************************
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//******************************************************************
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//******************************************************************
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//******************************************************************
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//
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//-------------------------------------------------------------------------------------
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// Utility methods for rendering Form Elements using GFX
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//-------------------------------------------------------------------------------------
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//
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// XXX: The following location for the paint code is TEMPORARY.
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// It is being used to get printing working
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// under windows. Later it will be used to GFX-render the controls to the display.
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// Expect this code to repackaged and moved to a new location in the future.
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/**
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* Enumeration of possible mouse states used to detect mouse clicks
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*/
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enum nsArrowDirection {
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eArrowDirection_Left,
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eArrowDirection_Right,
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eArrowDirection_Up,
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eArrowDirection_Down
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};
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/**
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* Scale, translate and convert an arrow of poitns from nscoord's to nsPoints's.
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*
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* @param aNumberOfPoints number of (x,y) pairs
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* @param aPoints arrow of points to convert
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* @param aScaleFactor scale factor to apply to each points translation.
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* @param aX x coordinate to add to each point after scaling
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* @param aY y coordinate to add to each point after scaling
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* @param aCenterX x coordinate of the center point in the original array of points.
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* @param aCenterY y coordiante of the center point in the original array of points.
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*/
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static void SetupPoints(PRUint32 aNumberOfPoints, nscoord* aPoints,
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nsPoint* aPolygon, nscoord aScaleFactor, nscoord aX, nscoord aY,
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nscoord aCenterX, nscoord aCenterY);
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/**
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* Paint a fat line. The line is drawn as a polygon with a specified width.
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*
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* @param aRenderingContext the rendering context
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* @param aSX starting x in pixels
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* @param aSY starting y in pixels
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* @param aEX ending x in pixels
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* @param aEY ending y in pixels
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* @param aHorz PR_TRUE if aWidth is added to x coordinates to form polygon. If
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* PR_FALSE then aWidth as added to the y coordinates.
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* @param aOnePixel number of twips in a single pixel.
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*/
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static void PaintLine(nsIRenderingContext& aRenderingContext,
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nscoord aSX, nscoord aSY, nscoord aEX, nscoord aEY,
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PRBool aHorz, nscoord aWidth, nscoord aOnePixel);
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/**
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* Draw an arrow glyph.
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*
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* @param aRenderingContext the rendering context
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* @param aSX upper left x coordinate pixels
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* @param aSY upper left y coordinate pixels
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* @param aType @see nsArrowDirection enumeration
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* @param aOnePixel number of twips in a single pixel.
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*/
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static void PaintArrowGlyph(nsIRenderingContext& aRenderingContext,
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nscoord aSX, nscoord aSY, nsArrowDirection aArrowDirection,
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nscoord aOnePixel);
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/**
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* Draw an arrow
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*
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* @param aArrowDirection @see nsArrowDirection enumeration
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* @param aRenderingContext the rendering context
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* @param aPresContext the presentation context
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* @param aDirtyRect rectangle requiring update
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* @param aOnePixel number of TWIPS in a single pixel
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* @param aColor color of the arrow glph
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* @param aSpacing spacing for the arrow background
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* @param aForFrame frame which the arrow will be rendered into.
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* @param aFrameRect rectangle for the frame specified by aForFrame
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*/
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static void PaintArrow(nsArrowDirection aArrowDirection,
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nsIRenderingContext& aRenderingContext,
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nsIPresContext& aPresContext,
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const nsRect& aDirtyRect,
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nsRect& aRect,
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nscoord aOnePixel,
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const nsStyleColor& aColor,
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const nsStyleSpacing& aSpacing,
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nsIFrame* aForFrame,
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nsRect& aFrameRect);
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/**
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* Paint a scrollbar
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*
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* @param aRenderingContext the rendering context
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* @param aPresContext the presentation context
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* @param aDirtyRect rectangle requiring update
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* @param aRect width and height of the scrollbar
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* @param aHorizontal if TRUE scrollbar is drawn horizontally, vertical if FALSE
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* @param aOnePixel number TWIPS per pixel
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* @param aScrollbarStyleContext style context for the scrollbar
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* @param aScrollbarArrowStyleContext style context for the scrollbar arrow
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* @param aForFrame the frame that the scrollbar will be rendered in to
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* @param aFrameRect the rectangle for the frame passed as aForFrame
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*/
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static void PaintScrollbar(nsIRenderingContext& aRenderingContext,
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nsIPresContext& aPresContext,
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const nsRect& aDirtyRect,
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nsRect& aRect,
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PRBool aHorizontal,
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nscoord aOnePixel,
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nsIStyleContext* aScrollbarStyleContext,
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nsIStyleContext* aScrollbarArrowStyleContext,
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nsIFrame* aForFrame,
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nsRect& aFrameRect);
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/**
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* Paint a fixed size checkmark
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*
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* @param aRenderingContext the rendering context
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* @param aPixelsToTwips scale factor for convering pixels to twips.
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*/
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static void PaintFixedSizeCheckMark(nsIRenderingContext& aRenderingContext,
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float aPixelsToTwips);
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/**
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* Paint a fixed size checkmark border
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*
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* @param aRenderingContext the rendering context
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* @param aPixelsToTwips scale factor for convering pixels to twips.
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*/
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static void PaintFixedSizeCheckMarkBorder(nsIRenderingContext& aRenderingContext,
|
|
float aPixelsToTwips);
|
|
|
|
/**
|
|
* Paint a rectangular button. Includes background, string, and focus indicator
|
|
*
|
|
* @param aPresContext the presentation context
|
|
* @param aRenderingContext the rendering context
|
|
* @param aDirtyRect rectangle requiring update
|
|
* @param aWidth width the checkmark border in TWIPS
|
|
* @param aHeight height of the checkmark border in TWIPS
|
|
* @param aShift if PR_TRUE offset button as if it were pressed
|
|
* @param aShowFocus if PR_TRUE draw focus rectangle over button
|
|
* @param aStyleContext style context used for drawing button background
|
|
* @param aLabel label for button
|
|
* @param aForFrame the frame that the scrollbar will be rendered in to
|
|
*/
|
|
|
|
static void PaintRectangularButton(nsIPresContext& aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, PRUint32 aWidth,
|
|
PRUint32 aHeight, PRBool aShift, PRBool aShowFocus,
|
|
nsIStyleContext* aStyleContext, nsString& aLabel,
|
|
nsIFrame* aForFrame);
|
|
/**
|
|
* Paint a focus indicator.
|
|
*
|
|
* @param aRenderingContext the rendering context
|
|
* @param aDirtyRect rectangle requiring update
|
|
* @param aInside border inside
|
|
* @param aOutside border outside
|
|
*/
|
|
|
|
static void PaintFocus(nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, nsRect& aInside, nsRect& aOutside);
|
|
|
|
/**
|
|
* Paint a circular border
|
|
*
|
|
* @param aPresContext the presentation context
|
|
* @param aRenderingContext the rendering context
|
|
* @param aDirtyRect rectangle requiring update
|
|
* @param aStyleContext style context specifying colors and spacing
|
|
* @param aInset if PR_TRUE draw inset, otherwise draw outset
|
|
* @param aForFrame the frame that the scrollbar will be rendered in to
|
|
* @param aWidth width of the border in TWIPS
|
|
* @param aHeight height ofthe border in TWIPS
|
|
*/
|
|
|
|
static void PaintCircularBorder(nsIPresContext& aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, nsIStyleContext* aStyleContext, PRBool aInset,
|
|
nsIFrame* aForFrame, PRUint32 aWidth, PRUint32 aHeight);
|
|
|
|
#endif
|
|
|
|
protected:
|
|
nsFormControlHelper();
|
|
virtual ~nsFormControlHelper();
|
|
|
|
|
|
};
|
|
|
|
#endif
|
|
|