skia2/include/utils/SkTextBox.h
epoger@google.com ec3ed6a5eb Automatic update of all copyright notices to reflect new license terms.
I have manually examined all of these diffs and restored a few files that
seem to require manual adjustment.

The following files still need to be modified manually, in a separate CL:

android_sample/SampleApp/AndroidManifest.xml
android_sample/SampleApp/res/layout/layout.xml
android_sample/SampleApp/res/menu/sample.xml
android_sample/SampleApp/res/values/strings.xml
android_sample/SampleApp/src/com/skia/sampleapp/SampleApp.java
android_sample/SampleApp/src/com/skia/sampleapp/SampleView.java
experimental/CiCarbonSampleMain.c
experimental/CocoaDebugger/main.m
experimental/FileReaderApp/main.m
experimental/SimpleCocoaApp/main.m
experimental/iOSSampleApp/Shared/SkAlertPrompt.h
experimental/iOSSampleApp/Shared/SkAlertPrompt.m
experimental/iOSSampleApp/SkiOSSampleApp-Base.xcconfig
experimental/iOSSampleApp/SkiOSSampleApp-Debug.xcconfig
experimental/iOSSampleApp/SkiOSSampleApp-Release.xcconfig
gpu/src/android/GrGLDefaultInterface_android.cpp
gyp/common.gypi
gyp_skia
include/ports/SkHarfBuzzFont.h
include/views/SkOSWindow_wxwidgets.h
make.bat
make.py
src/opts/memset.arm.S
src/opts/memset16_neon.S
src/opts/memset32_neon.S
src/opts/opts_check_arm.cpp
src/ports/SkDebug_brew.cpp
src/ports/SkMemory_brew.cpp
src/ports/SkOSFile_brew.cpp
src/ports/SkXMLParser_empty.cpp
src/utils/ios/SkImageDecoder_iOS.mm
src/utils/ios/SkOSFile_iOS.mm
src/utils/ios/SkStream_NSData.mm
tests/FillPathTest.cpp
Review URL: http://codereview.appspot.com/4816058

git-svn-id: http://skia.googlecode.com/svn/trunk@1982 2bbb7eff-a529-9590-31e7-b0007b416f81
2011-07-28 14:26:00 +00:00

79 lines
2.1 KiB
C++

/*
* 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