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-rw-r--r--skia/include/SkTextBox.h77
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diff --git a/skia/include/SkTextBox.h b/skia/include/SkTextBox.h
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-/*
- * Copyright (C) 2006 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#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&);
-
-private:
- SkRect fBox;
- SkScalar fSpacingMul, fSpacingAdd;
- uint8_t fMode, fSpacingAlign;
-};
-
-class SkTextLineBreaker {
-public:
- static int CountLines(const char text[], size_t len, const SkPaint&, SkScalar width);
-};
-
-#endif
-