SkWindow.h revision ecf3dbe8f2987a08b21be1aff61b7fbfbb69640a 
1/*
2 * Copyright 2006 The Android Open Source Project
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef SkWindow_DEFINED
9#define SkWindow_DEFINED
10
11#include "../private/SkTDArray.h"
12#include "SkView.h"
13#include "SkBitmap.h"
14#include "SkMatrix.h"
15#include "SkRegion.h"
16#include "SkEvent.h"
17#include "SkKey.h"
18#include "SkSurfaceProps.h"
19
20class SkSurface;
21class SkOSMenu;
22
23#if SK_SUPPORT_GPU
24struct GrGLInterface;
25class GrContext;
26class GrRenderTarget;
27#endif
28
29class SkWindow : public SkView {
30public:
31            SkWindow();
32    virtual ~SkWindow();
33
34    struct AttachmentInfo {
35        AttachmentInfo()
36            : fSampleCount(0)
37            , fStencilBits(0)
38            , fColorBits(0) {}
39
40        int fSampleCount;
41        int fStencilBits;
42        int fColorBits;
43    };
44
45    SkSurfaceProps getSurfaceProps() const { return fSurfaceProps; }
46    void setSurfaceProps(const SkSurfaceProps& props) {
47        fSurfaceProps = props;
48    }
49
50    SkImageInfo info() const { return fBitmap.info(); }
51    const SkBitmap& getBitmap() const { return fBitmap; }
52
53    void    resize(int width, int height);
54    void    resize(const SkImageInfo&);
55    void    setColorType(SkColorType, sk_sp<SkColorSpace>);
56
57    bool    isDirty() const { return !fDirtyRgn.isEmpty(); }
58    bool    update(SkIRect* updateArea);
59    // does not call through to onHandleInval(), but does force the fDirtyRgn
60    // to be wide open. Call before update() to ensure we redraw everything.
61    void    forceInvalAll();
62    // return the bounds of the dirty/inval rgn, or [0,0,0,0] if none
63    const SkIRect& getDirtyBounds() const { return fDirtyRgn.getBounds(); }
64
65    bool    handleClick(int x, int y, Click::State, void* owner, unsigned modi = 0);
66    bool    handleChar(SkUnichar);
67    bool    handleKey(SkKey);
68    bool    handleKeyUp(SkKey);
69
70    void    addMenu(SkOSMenu*);
71    const SkTDArray<SkOSMenu*>* getMenus() { return &fMenus; }
72
73    const char* getTitle() const { return fTitle.c_str(); }
74    void    setTitle(const char title[]);
75
76    const SkMatrix& getMatrix() const { return fMatrix; }
77    void    setMatrix(const SkMatrix&);
78    void    preConcat(const SkMatrix&);
79    void    postConcat(const SkMatrix&);
80
81    virtual sk_sp<SkSurface> makeSurface();
82
83protected:
84    virtual bool onEvent(const SkEvent&);
85    virtual bool onDispatchClick(int x, int y, Click::State, void* owner, unsigned modi);
86    // called if part of our bitmap is invalidated
87    virtual void onHandleInval(const SkIRect&);
88    virtual bool onHandleChar(SkUnichar);
89    virtual bool onHandleKey(SkKey);
90    virtual bool onHandleKeyUp(SkKey);
91    virtual void onAddMenu(const SkOSMenu*) {};
92    virtual void onUpdateMenu(const SkOSMenu*) {};
93    virtual void onSetTitle(const char title[]) {}
94
95    // overrides from SkView
96    virtual bool handleInval(const SkRect*);
97    virtual bool onGetFocusView(SkView** focus) const;
98    virtual bool onSetFocusView(SkView* focus);
99
100#if SK_SUPPORT_GPU
101    sk_sp<SkSurface> makeGpuBackedSurface(const AttachmentInfo& attachmentInfo,
102                                          const GrGLInterface* , GrContext* grContext);
103#endif
104
105private:
106    SkSurfaceProps  fSurfaceProps;
107    SkBitmap    fBitmap;
108    SkRegion    fDirtyRgn;
109
110    SkTDArray<Click*>       fClicks; // to track clicks
111
112    SkTDArray<SkOSMenu*>    fMenus;
113
114    SkView* fFocusView;
115    bool    fWaitingOnInval;
116
117    SkString    fTitle;
118    SkMatrix    fMatrix;
119
120    typedef SkView INHERITED;
121};
122
123////////////////////////////////////////////////////////////////////////////////
124
125#if defined(SK_USE_SDL)
126    #include "SkOSWindow_SDL.h"
127#elif defined(SK_BUILD_FOR_MAC)
128    #include "SkOSWindow_Mac.h"
129#elif defined(SK_BUILD_FOR_WIN)
130    #include "SkOSWindow_Win.h"
131#elif defined(SK_BUILD_FOR_ANDROID)
132    #error Android does not support SkOSWindow and SampleApp. Please use Viewer instead.
133#elif defined(SK_BUILD_FOR_UNIX)
134    #include "SkOSWindow_Unix.h"
135#elif defined(SK_BUILD_FOR_IOS)
136    #include "SkOSWindow_iOS.h"
137#endif
138
139#endif
140