skia2/include/utils/SkCullPoints.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

69 lines
1.7 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 SkCullPoints_DEFINED
#define SkCullPoints_DEFINED
#include "SkRect.h"
class SkCullPoints {
public:
SkCullPoints();
SkCullPoints(const SkIRect& r);
void reset(const SkIRect& r);
/** Start a contour at (x,y). Follow this with call(s) to lineTo(...)
*/
void moveTo(int x, int y);
enum LineToResult {
kNo_Result, //!< line segment was completely clipped out
kLineTo_Result, //!< path.lineTo(pts[1]);
kMoveToLineTo_Result //!< path.moveTo(pts[0]); path.lineTo(pts[1]);
};
/** Connect a line to the previous call to lineTo (or moveTo).
*/
LineToResult lineTo(int x, int y, SkIPoint pts[2]);
private:
SkIRect fR; // the caller's rectangle
SkIPoint fAsQuad[4]; // cache of fR as 4 points
SkIPoint fPrevPt; // private state
LineToResult fPrevResult; // private state
bool sect_test(int x0, int y0, int x1, int y1) const;
};
/////////////////////////////////////////////////////////////////////////////////
class SkPath;
/** \class SkCullPointsPath
Similar to SkCullPoints, but this class handles the return values
from lineTo, and automatically builds a SkPath with the result(s).
*/
class SkCullPointsPath {
public:
SkCullPointsPath();
SkCullPointsPath(const SkIRect& r, SkPath* dst);
void reset(const SkIRect& r, SkPath* dst);
void moveTo(int x, int y);
void lineTo(int x, int y);
private:
SkCullPoints fCP;
SkPath* fPath;
};
#endif