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      1 
      2 /*
      3  * Copyright 2011 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 #ifndef skiagm_DEFINED
      9 #define skiagm_DEFINED
     10 
     11 #include "SkBitmap.h"
     12 #include "SkCanvas.h"
     13 #include "SkDevice.h"
     14 #include "SkPaint.h"
     15 #include "SkSize.h"
     16 #include "SkString.h"
     17 #include "SkTRegistry.h"
     18 
     19 #define DEF_GM(code) \
     20     static skiagm::GM*          SK_MACRO_APPEND_LINE(F_)(void* p) { code; } \
     21     static skiagm::GMRegistry   SK_MACRO_APPEND_LINE(R_)(SK_MACRO_APPEND_LINE(F_));
     22 
     23 namespace skiagm {
     24 
     25         static inline SkISize make_isize(int w, int h) {
     26                 SkISize sz;
     27                 sz.set(w, h);
     28                 return sz;
     29         }
     30 
     31     class GM {
     32     public:
     33         GM();
     34         virtual ~GM();
     35 
     36         enum Flags {
     37             kSkipPDF_Flag           = 1 << 0,
     38             kSkipPicture_Flag       = 1 << 1,
     39             kSkipPipe_Flag          = 1 << 2,
     40             kSkipTiled_Flag         = 1 << 3,
     41             kSkip565_Flag           = 1 << 4,
     42             kSkipScaledReplay_Flag  = 1 << 5,
     43         };
     44 
     45         void draw(SkCanvas*);
     46         void drawBackground(SkCanvas*);
     47         void drawContent(SkCanvas*);
     48 
     49         SkISize getISize() { return this->onISize(); }
     50         const char* shortName();
     51 
     52         uint32_t getFlags() const {
     53             return this->onGetFlags();
     54         }
     55 
     56         SkScalar width() {
     57             return SkIntToScalar(this->getISize().width());
     58         }
     59         SkScalar height() {
     60             return SkIntToScalar(this->getISize().width());
     61         }
     62 
     63         // TODO(vandebo) Instead of exposing this, we should run all the GMs
     64         // with and without an initial transform.
     65         // Most GMs will return the identity matrix, but some PDFs tests
     66         // require setting the initial transform.
     67         SkMatrix getInitialTransform() const {
     68             return this->onGetInitialTransform();
     69         }
     70 
     71         SkColor getBGColor() const { return fBGColor; }
     72         void setBGColor(SkColor);
     73 
     74         // helper: fill a rect in the specified color based on the
     75         // GM's getISize bounds.
     76         void drawSizeBounds(SkCanvas*, SkColor);
     77 
     78         static void SetResourcePath(const char* resourcePath) {
     79             gResourcePath = resourcePath;
     80         }
     81 
     82         bool isCanvasDeferred() const { return fCanvasIsDeferred; }
     83         void setCanvasIsDeferred(bool isDeferred) {
     84             fCanvasIsDeferred = isDeferred;
     85         }
     86 
     87     protected:
     88         static SkString gResourcePath;
     89 
     90         virtual void onOnceBeforeDraw() {}
     91         virtual void onDraw(SkCanvas*) = 0;
     92         virtual void onDrawBackground(SkCanvas*);
     93         virtual SkISize onISize() = 0;
     94         virtual SkString onShortName() = 0;
     95         virtual uint32_t onGetFlags() const { return 0; }
     96         virtual SkMatrix onGetInitialTransform() const { return SkMatrix::I(); }
     97 
     98     private:
     99         SkString fShortName;
    100         SkColor  fBGColor;
    101         bool     fCanvasIsDeferred; // work-around problem in srcmode.cpp
    102         bool     fHaveCalledOnceBeforeDraw;
    103     };
    104 
    105     typedef SkTRegistry<GM*, void*> GMRegistry;
    106 }
    107 
    108 #endif
    109