gm/gm.cpp

   1 /*
   2  * Copyright 2011 Google Inc.
   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 #include "gm.h"
   9 #include "sk_tool_utils.h"
  10 #include "SkShader.h"
  11 using namespace skiagm;
  12
  13 GM::GM() {
  14     fMode = kGM_Mode;
  15     fBGColor = SK_ColorWHITE;
  16     fCanvasIsDeferred = false;
  17     fHaveCalledOnceBeforeDraw = false;
  18     fStarterMatrix.reset();
  19 }
  20
  21 GM::~GM() {}
  22
  23 void GM::draw(SkCanvas* canvas) {
  24     this->drawBackground(canvas);
  25     this->drawContent(canvas);
  26 }
  27
  28 void GM::drawContent(SkCanvas* canvas) {
  29     if (!fHaveCalledOnceBeforeDraw) {
  30         fHaveCalledOnceBeforeDraw = true;
  31         this->onOnceBeforeDraw();
  32     }
  33     this->onDraw(canvas);
  34 }
  35
  36 void GM::drawBackground(SkCanvas* canvas) {
  37     if (!fHaveCalledOnceBeforeDraw) {
  38         fHaveCalledOnceBeforeDraw = true;
  39         this->onOnceBeforeDraw();
  40     }
  41     this->onDrawBackground(canvas);
  42 }
  43
  44 const char* GM::getName() {
  45     if (fShortName.size() == 0) {
  46         fShortName = this->onShortName();
  47     }
  48     return fShortName.c_str();
  49 }
  50
  51 void GM::setBGColor(SkColor color) {
  52     fBGColor = color;
  53 }
  54
  55 bool GM::animate(const SkAnimTimer& timer) {
  56     return this->onAnimate(timer);
  57 }
  58
  59 /////////////////////////////////////////////////////////////////////////////////////////////
  60
  61 void GM::onDrawBackground(SkCanvas* canvas) {
  62     canvas->drawColor(fBGColor, SkBlendMode::kSrc);
  63 }
  64
  65 void GM::drawSizeBounds(SkCanvas* canvas, SkColor color) {
  66     SkISize size = this->getISize();
  67     SkRect r = SkRect::MakeWH(SkIntToScalar(size.width()),
  68                               SkIntToScalar(size.height()));
  69     SkPaint paint;
  70     paint.setColor(color);
  71     canvas->drawRect(r, paint);
  72 }
  73
  74 void GM::DrawGpuOnlyMessage(SkCanvas* canvas) {
  75     SkBitmap bmp;
  76     bmp.allocN32Pixels(128, 64);
  77     SkCanvas bmpCanvas(bmp);
  78     bmpCanvas.drawColor(SK_ColorWHITE);
  79     SkPaint paint;
  80     paint.setAntiAlias(true);
  81     paint.setTextSize(20);
  82     paint.setColor(SK_ColorRED);
  83     sk_tool_utils::set_portable_typeface(&paint);
  84     constexpr char kTxt[] = "GPU Only";
  85     bmpCanvas.drawString(kTxt, 20, 40, paint);
  86     SkMatrix localM;
  87     localM.setRotate(35.f);
  88     localM.postTranslate(10.f, 0.f);
  89     paint.setShader(SkShader::MakeBitmapShader(bmp, SkShader::kMirror_TileMode,
  90                                                SkShader::kMirror_TileMode,
  91                                                &localM));
  92     paint.setFilterQuality(kMedium_SkFilterQuality);
  93     canvas->drawPaint(paint);
  94     return;
  95 }
  96
  97 // need to explicitly declare this, or we get some weird infinite loop llist
  98 template GMRegistry* GMRegistry::gHead;
  99
 100 void skiagm::SimpleGM::onDraw(SkCanvas* canvas) {
 101     fDrawProc(canvas);
 102 }
 103
 104 SkISize skiagm::SimpleGM::onISize() {
 105     return fSize;
 106 }
 107
 108 SkString skiagm::SimpleGM::onShortName() {
 109     return fName;
 110 }