/usr/include/thunderbird/skia/SkTextBox.h is in thunderbird-dev 1:38.6.0+build1-0ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | /*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkTextBox_DEFINED
#define SkTextBox_DEFINED
#include "SkCanvas.h"
/** \class SkTextBox
SkTextBox is a helper class for drawing 1 or more lines of text
within a rectangle. The textbox is positioned and clipped by its Frame.
The Margin rectangle controls where the text is drawn relative to
the Frame. Line-breaks occur inside the Margin rectangle.
Spacing is a linear equation used to compute the distance between lines
of text. Spacing consists of two scalars: mul and add, and the spacing
between lines is computed as: spacing = paint.getTextSize() * mul + add
*/
class SkTextBox {
public:
SkTextBox();
enum Mode {
kOneLine_Mode,
kLineBreak_Mode,
kModeCount
};
Mode getMode() const { return (Mode)fMode; }
void setMode(Mode);
enum SpacingAlign {
kStart_SpacingAlign,
kCenter_SpacingAlign,
kEnd_SpacingAlign,
kSpacingAlignCount
};
SpacingAlign getSpacingAlign() const { return (SpacingAlign)fSpacingAlign; }
void setSpacingAlign(SpacingAlign);
void getBox(SkRect*) const;
void setBox(const SkRect&);
void setBox(SkScalar left, SkScalar top, SkScalar right, SkScalar bottom);
void getSpacing(SkScalar* mul, SkScalar* add) const;
void setSpacing(SkScalar mul, SkScalar add);
void draw(SkCanvas*, const char text[], size_t len, const SkPaint&);
void setText(const char text[], size_t len, const SkPaint&);
void draw(SkCanvas*);
int countLines() const;
SkScalar getTextHeight() const;
private:
SkRect fBox;
SkScalar fSpacingMul, fSpacingAdd;
uint8_t fMode, fSpacingAlign;
const char* fText;
size_t fLen;
const SkPaint* fPaint;
};
class SkTextLineBreaker {
public:
static int CountLines(const char text[], size_t len, const SkPaint&, SkScalar width);
};
#endif
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