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/*
* Copyright 2008, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SELECT_TEXT_H
#define SELECT_TEXT_H
#include "DrawExtra.h"
#include "IntPoint.h"
#include "IntRect.h"
#include "PlatformString.h"
#include "SkPath.h"
#include "SkPicture.h"
#include "SkRect.h"
#include "SkRegion.h"
namespace android {
class CachedRoot;
class SelectText : public DrawExtra {
public:
SelectText();
virtual ~SelectText();
virtual void draw(SkCanvas* , LayerAndroid* , IntRect* );
void extendSelection(const IntRect& vis, int x, int y);
const String getSelection();
bool hitSelection(int x, int y) const;
void moveSelection(const IntRect& vis, int x, int y);
void reset();
IntPoint selectableText(const CachedRoot* );
void selectAll();
int selectionX() const;
int selectionY() const;
void setDrawPointer(bool drawPointer) { m_drawPointer = drawPointer; }
void setExtendSelection(bool extend) { m_extendSelection = extend; }
bool startSelection(const CachedRoot* , const IntRect& vis, int x, int y);
bool wordSelection(const CachedRoot* , const IntRect& vis, int x, int y);
public:
float m_inverseScale; // inverse scale, x, y used for drawing select path
int m_selectX;
int m_selectY;
private:
class FirstCheck;
class EdgeCheck;
void drawSelectionPointer(SkCanvas* , IntRect* );
void drawSelectionRegion(SkCanvas* , IntRect* );
SkIRect findClosest(FirstCheck& , const SkPicture& , int* base);
SkIRect findEdge(const SkPicture& , const SkIRect& area,
int x, int y, bool left, int* base);
SkIRect findLeft(const SkPicture& picture, const SkIRect& area,
int x, int y, int* base);
SkIRect findRight(const SkPicture& picture, const SkIRect& area,
int x, int y, int* base);
static void getSelectionArrow(SkPath* );
void getSelectionCaret(SkPath* );
bool hitCorner(int cx, int cy, int x, int y) const;
void setVisibleRect(const IntRect& );
void swapAsNeeded();
SkIPoint m_original; // computed start of extend selection
SkIPoint m_startOffset; // difference from global to layer
SkIRect m_selStart;
SkIRect m_selEnd;
SkIRect m_lastStart;
SkIRect m_lastEnd;
SkIRect m_lastDrawnStart;
SkIRect m_lastDrawnEnd;
SkIRect m_wordBounds;
int m_startBase;
int m_endBase;
int m_layerId;
SkIRect m_visibleRect; // constrains picture computations to visible area
SkRegion m_lastSelRegion;
SkRegion m_selRegion; // computed from sel start, end
SkPicture m_startControl;
SkPicture m_endControl;
const SkPicture* m_picture;
bool m_drawPointer;
bool m_extendSelection; // false when trackball is moving pointer
bool m_flipped;
bool m_hitTopLeft;
bool m_startSelection;
bool m_wordSelection;
bool m_outsideWord;
};
}
namespace WebCore {
void ReverseBidi(UChar* chars, int len);
}
#endif
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