139 lines
4.2 KiB
C++
139 lines
4.2 KiB
C++
/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef skiagm_DEFINED
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#define skiagm_DEFINED
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#include "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkSize.h"
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#include "SkString.h"
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#include "SkTRegistry.h"
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#include "sk_tool_utils.h"
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class SkAnimTimer;
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struct GrContextOptions;
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#define DEF_GM(code) \
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static skiagm::GM* SK_MACRO_APPEND_LINE(F_)(void*) { code; } \
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static skiagm::GMRegistry SK_MACRO_APPEND_LINE(R_)(SK_MACRO_APPEND_LINE(F_));
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// See colorwheel.cpp for example usage.
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#define DEF_SIMPLE_GM(NAME, CANVAS, W, H) \
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static void SK_MACRO_CONCAT(NAME, _GM)(SkCanvas* CANVAS); \
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DEF_GM( return SkNEW_ARGS(skiagm::SimpleGM, \
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(SkString(#NAME), \
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SK_MACRO_CONCAT(NAME, _GM), \
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SkISize::Make(W, H))); ) \
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void SK_MACRO_CONCAT(NAME, _GM)(SkCanvas* CANVAS)
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namespace skiagm {
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class GM {
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public:
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GM();
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virtual ~GM();
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enum Mode {
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kGM_Mode,
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kSample_Mode,
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kBench_Mode,
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};
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void setMode(Mode mode) { fMode = mode; }
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Mode getMode() const { return fMode; }
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void draw(SkCanvas*);
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void drawBackground(SkCanvas*);
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void drawContent(SkCanvas*);
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SkISize getISize() { return this->onISize(); }
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const char* getName();
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virtual bool runAsBench() const { return false; }
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SkScalar width() {
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return SkIntToScalar(this->getISize().width());
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}
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SkScalar height() {
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return SkIntToScalar(this->getISize().height());
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}
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// TODO(vandebo) Instead of exposing this, we should run all the GMs
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// with and without an initial transform.
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// Most GMs will return the identity matrix, but some PDFs tests
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// require setting the initial transform.
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SkMatrix getInitialTransform() const {
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SkMatrix matrix = fStarterMatrix;
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matrix.preConcat(this->onGetInitialTransform());
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return matrix;
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}
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SkColor getBGColor() const { return fBGColor; }
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void setBGColor(SkColor);
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// helper: fill a rect in the specified color based on the
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// GM's getISize bounds.
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void drawSizeBounds(SkCanvas*, SkColor);
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bool isCanvasDeferred() const { return fCanvasIsDeferred; }
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void setCanvasIsDeferred(bool isDeferred) {
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fCanvasIsDeferred = isDeferred;
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}
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const SkMatrix& getStarterMatrix() { return fStarterMatrix; }
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void setStarterMatrix(const SkMatrix& matrix) {
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fStarterMatrix = matrix;
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}
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bool animate(const SkAnimTimer&);
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virtual void modifyGrContextOptions(GrContextOptions* options) {}
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protected:
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/** draws a standard message that the GM is only intended to be used with the GPU.*/
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void drawGpuOnlyMessage(SkCanvas*);
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virtual void onOnceBeforeDraw() {}
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virtual void onDraw(SkCanvas*) = 0;
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virtual void onDrawBackground(SkCanvas*);
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virtual SkISize onISize() = 0;
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virtual SkString onShortName() = 0;
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virtual bool onAnimate(const SkAnimTimer&) { return false; }
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virtual SkMatrix onGetInitialTransform() const { return SkMatrix::I(); }
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private:
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Mode fMode;
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SkString fShortName;
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SkColor fBGColor;
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bool fCanvasIsDeferred; // work-around problem in srcmode.cpp
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bool fHaveCalledOnceBeforeDraw;
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SkMatrix fStarterMatrix;
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};
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typedef SkTRegistry<GM*(*)(void*)> GMRegistry;
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class SimpleGM : public skiagm::GM {
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public:
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SimpleGM(const SkString& name,
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void (*drawProc)(SkCanvas*),
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const SkISize& size)
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: fName(name), fDrawProc(drawProc), fSize(size) {}
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protected:
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void onDraw(SkCanvas* canvas) override;
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SkISize onISize() override;
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SkString onShortName() override;
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private:
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SkString fName;
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void (*fDrawProc)(SkCanvas*);
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SkISize fSize;
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};
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}
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#endif
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