move SkTextBox into utils

include/views/SkTextBox.h

-
-/*
- * 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