зеркало из https://github.com/mozilla/gecko-dev.git
added major selection method and data members
This commit is contained in:
rods
Родитель
7710bf746a
Коммит
1d7ce79a12
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Загрузить разницу
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@ -20,6 +20,9 @@
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#include "nsIFrame.h"
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#include "nsRect.h"
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#include "nsISelection.h"
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#include "nsSelectionRange.h"
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#include "nsSelectionPoint.h"
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// Implementation of a simple frame with no children and that isn't splittable
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@ -173,10 +176,7 @@ public:
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NS_IMETHOD VerifyTree() const;
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protected:
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// Style post processing hook
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virtual NS_METHOD DidSetStyleContext(nsIPresContext* aPresContext);
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// Selection Methods
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// Selection Methods
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NS_METHOD HandlePress(nsIPresContext& aPresContext,
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nsGUIEvent * aEvent,
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nsEventStatus& aEventStatus,
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@ -192,18 +192,34 @@ protected:
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nsEventStatus& aEventStatus,
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nsFrame * aFrame);
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void NewContentIsBefore(nsIPresContext& aPresContext,
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virtual void NewContentIsBefore(nsIPresContext& aPresContext,
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nsGUIEvent * aEvent,
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nsIContent * aNewContent,
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nsIContent * aCurrentContent,
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nsIFrame * aNewFrame);
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void NewContentIsAfter(nsIPresContext& aPresContext,
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virtual void NewContentIsAfter(nsIPresContext& aPresContext,
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nsGUIEvent * aEvent,
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nsIContent * aNewContent,
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nsIContent * aCurrentContent,
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nsIFrame * aNewFrame);
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virtual PRInt32 GetPosition(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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nsIFrame * aNewFrame);
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virtual void AdjustPointsInNewContent(nsIPresContext& aPresContext,
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nsGUIEvent * aEvent,
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nsIFrame * aNewFrame);
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virtual void AdjustPointsInSameContent(nsIPresContext& aPresContext,
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nsGUIEvent * aEvent);
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// Style post processing hook
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virtual NS_METHOD DidSetStyleContext(nsIPresContext* aPresContext);
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// Constructor. Takes as arguments the content object, the index in parent,
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// and the Frame for the content parent
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@ -218,6 +234,23 @@ protected:
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nsIFrame* mGeometricParent;
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nsIFrame* mNextSibling; // singly linked list of frames
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///////////////////////////////////
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// Important Selection Variables
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///////////////////////////////////
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static nsIFrame * mCurrentFrame;
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static PRBool mDoingSelection;
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static PRBool mDidDrag;
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static PRInt32 mStartPos;
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// Selection data is valid only from the Mouse Press to the Mouse Release
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static nsSelectionRange * mSelectionRange;
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static nsISelection * mSelection;
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static nsSelectionPoint * mStartSelectionPoint;
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static nsSelectionPoint * mEndSelectionPoint;
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///////////////////////////////////
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private:
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nsIView* mView; // must use accessor member functions
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@ -39,6 +39,15 @@
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#include "nsIDOMText.h"
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#include "nsIDocument.h"
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// Selection includes
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#include "nsISelection.h"
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#include "nsSelectionRange.h"
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#define gCalcDebug 0
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PRBool IsInRange(nsIContent * aStart, nsIContent * aEnd, nsIContent * aContent);
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#ifdef NS_DEBUG
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#undef NOISY
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#undef NOISY_BLINK
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@ -134,10 +143,31 @@ public:
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NS_IMETHOD List(FILE* out, PRInt32 aIndent) const;
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PRInt32 GetPosition(nsIPresContext& aCX,
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nsGUIEvent* aEvent,
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nsIFrame * aNewFrame);
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void CalcCursorPosition(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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TextFrame * aNewFrame,
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PRInt32 & aOffset,
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PRInt32 & aWidth);
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void CalcActualPosition(PRUint32 &aMsgType,
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const PRUnichar* aCPStart,
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const PRUnichar* aCP,
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PRInt32 & aOffset,
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PRInt32 & aWidth,
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nsIFontMetrics * aFM);
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PRInt32 GetContentOffset() { return mContentOffset;}
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PRInt32 GetContentLength() { return mContentLength;}
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protected:
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virtual ~TextFrame();
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void PaintRegularText(nsIRenderingContext& aRenderingContext,
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void PaintRegularText(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nscoord dx, nscoord dy);
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@ -421,17 +451,19 @@ NS_METHOD TextFrame::Paint(nsIPresContext& aPresContext,
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}
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return NS_OK;
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}
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PaintRegularText(aRenderingContext, aDirtyRect, 0, 0);
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PaintRegularText(aPresContext, aRenderingContext, aDirtyRect, 0, 0);
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//nsFrame::Paint(aPresContext, aRenderingContext, aDirtyRect);
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if (font->mThreeD) {
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nscoord onePixel = nscoord(1.0f * aPresContext.GetPixelsToTwips());
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aRenderingContext.SetColor(color->mBackgroundColor);
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PaintRegularText(aRenderingContext, aDirtyRect, onePixel, onePixel);
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PaintRegularText(aPresContext, aRenderingContext, aDirtyRect, onePixel, onePixel);
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}
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return NS_OK;
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}
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void TextFrame::PaintRegularText(nsIRenderingContext& aRenderingContext,
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void TextFrame::PaintRegularText(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nscoord dx, nscoord dy)
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{
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@ -496,8 +528,40 @@ void TextFrame::PaintRegularText(nsIRenderingContext& aRenderingContext,
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}
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}
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// Render the text
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aRenderingContext.DrawString(s0, s - s0, dx, dy, mRect.width);
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// Get Selection Object
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nsIPresShell * shell = aPresContext.GetShell();
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nsIDocument * doc = shell->GetDocument();
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nsISelection * selection = doc->GetSelection();
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nsSelectionRange * range = selection->GetRange();
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NS_RELEASE(shell);
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NS_RELEASE(doc);
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NS_RELEASE(selection);
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if (IsInRange(range->GetStartContent(), range->GetEndContent(), mContent)) {
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nsRect rect;
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GetRect(rect);
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rect.width--;
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rect.height--;
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nsIFontMetrics * fm = aRenderingContext.GetFontMetrics();
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aRenderingContext.SetColor(NS_RGB(0,0,0));
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aRenderingContext.FillRect(rect);
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aRenderingContext.SetColor(NS_RGB(255,255,255));
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// Render the text
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aRenderingContext.DrawString(s0, s - s0, dx, dy, mRect.width);
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nsStyleColor* color = (nsStyleColor*)mStyleContext->GetData(kStyleColorSID);
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aRenderingContext.SetColor(color->mColor);
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} else {
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// Render the text
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nsStyleColor* color = (nsStyleColor*)mStyleContext->GetData(kStyleColorSID);
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aRenderingContext.SetColor(color->mColor);
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aRenderingContext.DrawString(s0, s - s0, dx, dy, mRect.width);
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}
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if (s0 != buf) {
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delete[] s0;
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@ -542,8 +606,39 @@ void TextFrame::PaintRegularText(nsIRenderingContext& aRenderingContext,
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}
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}
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// Render the text
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aRenderingContext.DrawString(s0, s - s0, dx, dy, mRect.width);
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// Get Selection Object
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nsIPresShell * shell = aPresContext.GetShell();
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nsIDocument * doc = shell->GetDocument();
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nsISelection * selection = doc->GetSelection();
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nsSelectionRange * range = selection->GetRange();
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NS_RELEASE(shell);
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NS_RELEASE(doc);
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NS_RELEASE(selection);
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if (IsInRange(range->GetStartContent(), range->GetEndContent(), mContent)) {
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nsRect rect;
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GetRect(rect);
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rect.width--;
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rect.height--;
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nsIFontMetrics * fm = aRenderingContext.GetFontMetrics();
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aRenderingContext.SetColor(NS_RGB(0,0,0));
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aRenderingContext.FillRect(rect);
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aRenderingContext.SetColor(NS_RGB(255,255,255));
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// Render the text
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aRenderingContext.DrawString(s0, s - s0, dx, dy, mRect.width);
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nsStyleColor* color = (nsStyleColor*)mStyleContext->GetData(kStyleColorSID);
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aRenderingContext.SetColor(color->mColor);
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} else {
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// Render the text
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nsStyleColor* color = (nsStyleColor*)mStyleContext->GetData(kStyleColorSID);
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aRenderingContext.SetColor(color->mColor);
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aRenderingContext.DrawString(s0, s - s0, dx, dy, mRect.width);
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}
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if (s0 != buf) {
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delete[] s0;
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@ -1142,6 +1237,295 @@ bail:
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}
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#undef NUM_WORDS
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//--------------------------------------------------------------------------
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// CalcActualPosition
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// This finds the actual interger offset into the text and the width of the
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// offset in Twips
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//--------------------------------------------------------------------------
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void TextFrame::CalcActualPosition(PRUint32 &aMsgType,
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const PRUnichar* aCPStart,
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const PRUnichar* aCP,
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PRInt32 & aOffset,
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PRInt32 & aWidth,
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nsIFontMetrics * aFM) {
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//printf("**STOPPED! Offset is [%d][%d]\n", width, PRUint32(cp - cpStart));
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if (aMsgType == NS_MOUSE_LEFT_BUTTON_UP || aMsgType == NS_MOUSE_MOVE) {
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aOffset = PRUint32(aCP - aCPStart);
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aWidth = aFM->GetWidth(aCPStart, aOffset-1);
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} else if (aMsgType == NS_MOUSE_LEFT_BUTTON_DOWN) {
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aOffset = PRUint32(aCP - aCPStart)-1;
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if (aOffset == 0) {
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aWidth = 0;
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} else {
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aWidth = aFM->GetWidth(aCPStart, aOffset);
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}
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}
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}
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//--------------------------------------------------------------------------
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//-- GetPosition
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//--------------------------------------------------------------------------
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PRInt32 TextFrame::GetPosition(nsIPresContext& aCX,
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nsGUIEvent * aEvent,
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nsIFrame * aNewFrame) {
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PRInt32 offset;
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PRInt32 width;
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CalcCursorPosition(aCX, aEvent, (TextFrame *)aNewFrame, offset, width);
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offset += ((TextFrame *)aNewFrame)->GetContentOffset();
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return offset;
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}
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//--------------------------------------------------------------------------
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//-- CalcCursorPosition
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//--------------------------------------------------------------------------
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void TextFrame::CalcCursorPosition(nsIPresContext& aCX,
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nsGUIEvent* aEvent,
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TextFrame * aNewFrame,
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PRInt32 & aOffset,
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PRInt32 & aWidth) {
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if (gCalcDebug) printf("Cursor Point [%d,%d]\n", aEvent->point.x, aEvent->point.y);
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// Get starting offset into the content
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PRInt32 startingOffset = 0;
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if (nsnull != aNewFrame->GetPrevInFlow()) {
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TextFrame* prev = (TextFrame*) aNewFrame->GetPrevInFlow();
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startingOffset = prev->GetContentOffset() + prev->GetContentLength();
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}
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// Get cached state for containing block frame
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nsLineLayout* lineLayoutState = nsnull;
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nsBlockReflowState* state = nsBlockFrame::FindBlockReflowState(&aCX, this);
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if (nsnull != state) {
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lineLayoutState = state->mCurrentLine;
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if (nsnull != lineLayoutState) {
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lineLayoutState->mReflowResult = NS_LINE_LAYOUT_REFLOW_RESULT_AWARE;
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}
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}
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nsIContent * content;
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GetContent(content);
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Text* txt = (Text*) content;
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const PRUnichar* cp = txt->mText + startingOffset;
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const PRUnichar* end = cp + txt->mLength - startingOffset;
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const PRUnichar* cpStart = cp;
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//mContentOffset = startingOffset;
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nsIStyleContext * styleContext;
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aNewFrame->GetStyleContext(&aCX, styleContext);
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nsStyleFont *font = (nsStyleFont*)styleContext->GetData(kStyleFontSID);
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nsStyleText *styleText = (nsStyleText*)styleContext->GetData(kStyleTextSID);
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NS_RELEASE(styleContext);
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nsIFontMetrics* fm = aCX.GetMetricsFor(font->mFont);
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PRInt32 spaceWidth = fm->GetWidth(' ');
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PRBool atLeftMargin = PR_TRUE;
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PRBool wrapping = PR_TRUE;
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if (NS_STYLE_WHITESPACE_NORMAL != styleText->mWhiteSpace) {
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wrapping = PR_FALSE;
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}
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// Set whitespace skip flag
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PRBool skipWhitespace = PR_FALSE;
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if (nsnull != lineLayoutState) {
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if (lineLayoutState->mSkipLeadingWhiteSpace) {
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skipWhitespace = PR_TRUE;
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mFlags |= TEXT_SKIP_LEADING_WS;
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}
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}
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// Try to fit as much of the text as possible. Note that if we are
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// at the left margin then the first word always fits. In addition,
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// we compute the size of the largest word that we contain. If we
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// end up containing nothing (because there isn't enough space for
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// the first word) then we still compute the size of that first
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// non-fitting word.
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// XXX XP_IS_SPACE must not return PR_TRUE for the unicode   character
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// XXX what about &zwj and it's cousins?
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nscoord x = 0;
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nscoord maxWidth = 100000;//aMaxSize.width;
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nscoord width = 0;
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nscoord maxWordWidth = 0;
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const PRUnichar* lastWordEnd = cpStart;
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PRBool hasMultibyte = PR_FALSE;
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PRBool endsInWhitespace = PR_FALSE;
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int w = 0;
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while (cp < end) {
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width = fm->GetWidth(cpStart, PRUint32(cp - cpStart));
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if (gCalcDebug) printf("Cursor %d ******>> Width %d Pos: %d end: %d \n", aEvent->point.x,
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width,
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PRUint32(cp - cpStart),
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end-cpStart);
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if (width >= aEvent->point.x) {
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if (gCalcDebug) printf("*********************************\n*STOPPED**! Offset is [%d][%d]\n", width, PRUint32(cp - cpStart));
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if (gCalcDebug) printf("**********************************\n");
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CalcActualPosition(aEvent->message, cpStart, cp, aOffset, aWidth, fm);
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//--------- Major Debugging ----
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/*if (aEvent->message == NS_MOUSE_MOVE ||
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aEvent->message == NS_MOUSE_LEFT_BUTTON_UP) {
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int len = txt->mLength - startingOffset;
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//printf("Len %d\n", len);
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PRUnichar buf0[256];
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PRUnichar buf1[256];
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PRUnichar buf2[256];
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const PRUnichar* start = txt->mText + startingOffset;
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printf("mStart %d mEnd %d len %d\n", mStartSelect, mEndSelect, len);
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for (PRUint32 i=0;i<mStartSelect;i++) {
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printf("%c/", *start);
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buf0[i] = *start;
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start++;
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}
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if (mEndSelect-mStartSelect > 4) {
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int x = 0;
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x++;
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}
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printf("\n%d>", mEndSelect-mStartSelect);
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buf0[i] = 0;
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for (i=0;i<mEndSelect-mStartSelect;i++) {
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printf("%c/", *start);
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buf1[i] = *start;
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start++;
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}
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printf("\n%d>", len-mEndSelect);
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buf1[i] = 0;
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for (i=0;i<len-mEndSelect;i++) {
|
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printf("%c/", *start);
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buf2[i] = *start;
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start++;
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}
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printf("\n");
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buf2[i] = 0;
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//printf("[%s][%s][%s]\n", buf0, buf1, buf2);
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int l0 = fm->GetWidth(cpStart, PRUint32(mStartSelect));
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int l1 = fm->GetWidth(cpStart+mStartSelect, PRUint32(mEndSelect-mStartSelect));
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int l2 = fm->GetWidth(cpStart+mEndSelect, PRUint32(len-mEndSelect));
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int l3 = fm->GetWidth(cpStart, PRUint32(mEndSelect));
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printf("%d %d %d/\n", mStartSelect, mEndSelect-mStartSelect, len-mEndSelect);
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printf("%d %d %d %d %d\n", l0, l1, l2, l3, (l0+l1+l2));
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printf("mStart %d,%d mEnd %d,%d whole width %d len %d\n", mStartSelect, mStartWidth, mEndSelect, mEndWidth, fm->GetWidth(cpStart, PRUint32(txt->mLength-startingOffset)), PRUint32(txt->mLength-startingOffset));
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if (mEndSelect-mStartSelect > 0) {
|
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mSelectWidth = fm->GetWidth(cpStart+mStartSelect, PRUint32(mEndSelect-mStartSelect));
|
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} else {
|
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mSelectWidth = 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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NS_RELEASE(content);
|
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return;
|
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}
|
||||
|
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PRUnichar ch = *cp++;
|
||||
|
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PRBool isWhitespace;
|
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if (XP_IS_SPACE(ch)) {
|
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if (gCalcDebug) printf("Before 11111111111111111111111111111111\n");
|
||||
// Compress whitespace down to a single whitespace
|
||||
while (cp < end) {
|
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ch = *cp;
|
||||
if (XP_IS_SPACE(ch)) {
|
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cp++;
|
||||
continue;
|
||||
}
|
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break;
|
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}
|
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if (skipWhitespace) {
|
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skipWhitespace = PR_FALSE;
|
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continue;
|
||||
}
|
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width = spaceWidth;
|
||||
isWhitespace = PR_TRUE;
|
||||
if (gCalcDebug) printf("After 11111111111111111111111111111111\n");
|
||||
} else {
|
||||
if (gCalcDebug) printf("Before 2222222222222222222222222222222222222\n");
|
||||
// The character is not a space character. Find the end of the
|
||||
// word and then measure it.
|
||||
if (ch >= 256) {
|
||||
hasMultibyte = PR_TRUE;
|
||||
}
|
||||
const PRUnichar* wordStart = cp - 1;
|
||||
while (cp < end) {
|
||||
width = fm->GetWidth(cpStart, PRUint32(cp - cpStart));
|
||||
|
||||
if (gCalcDebug) printf("-Cursor %d ******>> Width %d Pos: %d end: %d \n", aEvent->point.x,
|
||||
width,
|
||||
PRUint32(cp - cpStart),
|
||||
end-cpStart);
|
||||
if (width >= aEvent->point.x) {
|
||||
if (gCalcDebug) printf("**********************************\nSTOPPED! Offset is [%d][%d]\n", width, PRUint32(cp - cpStart));
|
||||
if (gCalcDebug) printf("**********************************\n");
|
||||
CalcActualPosition(aEvent->message, cpStart, cp, aOffset, aWidth, fm);
|
||||
NS_RELEASE(content);
|
||||
return;
|
||||
}
|
||||
|
||||
ch = *cp;
|
||||
if (ch >= 256) {
|
||||
hasMultibyte = PR_TRUE;
|
||||
}
|
||||
if (!XP_IS_SPACE(ch)) {
|
||||
cp++;
|
||||
continue;
|
||||
}
|
||||
if (gCalcDebug) printf("At bottom...breaking..........................\n");
|
||||
break;
|
||||
}
|
||||
if (gCalcDebug) printf("After 2222222222222222222222222222222222222\n");
|
||||
}
|
||||
|
||||
// Now that we have the end of the word or whitespace, see if it
|
||||
// will fit.
|
||||
if (!atLeftMargin && wrapping && (x + width > maxWidth)) {
|
||||
// The word/whitespace will not fit.
|
||||
cp = lastWordEnd;
|
||||
if (x == 0) {
|
||||
// Nothing fit at all. In this case, we still may want to know
|
||||
// the maxWordWidth so compute it right now.
|
||||
maxWordWidth = width;
|
||||
}
|
||||
if (gCalcDebug) printf(">>>>> Breaking\n");
|
||||
break;
|
||||
} // if
|
||||
|
||||
// The word fits. Add it to the run of text.
|
||||
x += width;
|
||||
if (width > maxWordWidth) {
|
||||
maxWordWidth = width;
|
||||
}
|
||||
atLeftMargin = PR_FALSE;
|
||||
lastWordEnd = cp;
|
||||
width = 0;
|
||||
endsInWhitespace = isWhitespace;
|
||||
if (gCalcDebug) printf("Bottom--------------------------------\n");
|
||||
} // while
|
||||
|
||||
NS_RELEASE(content);
|
||||
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD TextFrame::List(FILE* out, PRInt32 aIndent) const
|
||||
{
|
||||
PRInt32 i;
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче