src/examples/testStrokeLine.cpp

   1 #include "testCommon.h"
   2
   3 /************************************************************************/
   4 /* Drawing Commands                                                     */
   5 /************************************************************************/
   6
   7 void tvgDrawCmds(tvg::Canvas* canvas)
   8 {
   9     if (!canvas) return;
  10
  11     //Test for Stroke Width
  12     for (int i = 0; i < 10; ++i) {
  13         auto shape = tvg::Shape::gen();
  14         shape->moveTo(50, 50 + (25 * i));
  15         shape->lineTo(750, 50 + (25 * i));
  16         shape->stroke(255, 255, 255, 255);       //color: r, g, b, a
  17         shape->stroke(i + 1);                    //stroke width
  18         shape->stroke(tvg::StrokeCap::Round);    //default is Square
  19         if (canvas->push(move(shape)) != tvg::Result::Success) return;
  20     }
  21
  22     //Test for StrokeJoin & StrokeCap
  23     auto shape1 = tvg::Shape::gen();
  24     shape1->moveTo(20, 350);
  25     shape1->lineTo(250, 350);
  26     shape1->lineTo(220, 500);
  27     shape1->lineTo(70, 470);
  28     shape1->lineTo(70, 330);
  29     shape1->stroke(255, 0, 0, 255);
  30     shape1->stroke(10);
  31     shape1->stroke(tvg::StrokeJoin::Round);
  32     shape1->stroke(tvg::StrokeCap::Round);
  33     if (canvas->push(move(shape1)) != tvg::Result::Success) return;
  34
  35     auto shape2 = tvg::Shape::gen();
  36     shape2->moveTo(270, 350);
  37     shape2->lineTo(500, 350);
  38     shape2->lineTo(470, 500);
  39     shape2->lineTo(320, 470);
  40     shape2->lineTo(320, 330);
  41     shape2->stroke(255, 255, 0, 255);
  42     shape2->stroke(10);
  43     shape2->stroke(tvg::StrokeJoin::Bevel);
  44     shape2->stroke(tvg::StrokeCap::Square);
  45     if (canvas->push(move(shape2)) != tvg::Result::Success) return;
  46
  47     auto shape3 = tvg::Shape::gen();
  48     shape3->moveTo(520, 350);
  49     shape3->lineTo(750, 350);
  50     shape3->lineTo(720, 500);
  51     shape3->lineTo(570, 470);
  52     shape3->lineTo(570, 330);
  53     shape3->stroke(0, 255, 0, 255);
  54     shape3->stroke(10);
  55     shape3->stroke(tvg::StrokeJoin::Miter);
  56     shape3->stroke(tvg::StrokeCap::Butt);
  57     if (canvas->push(move(shape3)) != tvg::Result::Success) return;
  58
  59     //Test for Stroke Dash
  60     auto shape4 = tvg::Shape::gen();
  61     shape4->moveTo(20, 600);
  62     shape4->lineTo(250, 600);
  63     shape4->lineTo(220, 750);
  64     shape4->lineTo(70, 720);
  65     shape4->lineTo(70, 580);
  66     shape4->stroke(255, 0, 0, 255);
  67     shape4->stroke(5);
  68     shape4->stroke(tvg::StrokeJoin::Round);
  69     shape4->stroke(tvg::StrokeCap::Round);
  70
  71     float dashPattern1[2] = {10, 10};
  72     shape4->stroke(dashPattern1, 2);
  73     if (canvas->push(move(shape4)) != tvg::Result::Success) return;
  74
  75     auto shape5 = tvg::Shape::gen();
  76     shape5->moveTo(270, 600);
  77     shape5->lineTo(500, 600);
  78     shape5->lineTo(470, 750);
  79     shape5->lineTo(320, 720);
  80     shape5->lineTo(320, 580);
  81     shape5->stroke(255, 255, 0, 255);
  82     shape5->stroke(5);
  83     shape5->stroke(tvg::StrokeJoin::Bevel);
  84     shape5->stroke(tvg::StrokeCap::Butt);
  85
  86     float dashPattern2[2] = {10, 10};
  87     shape5->stroke(dashPattern2, 2);
  88     if (canvas->push(move(shape5)) != tvg::Result::Success) return;
  89
  90     auto shape6 = tvg::Shape::gen();
  91     shape6->moveTo(520, 600);
  92     shape6->lineTo(750, 600);
  93     shape6->lineTo(720, 750);
  94     shape6->lineTo(570, 720);
  95     shape6->lineTo(570, 580);
  96     shape6->stroke(255, 255, 255, 255);
  97     shape6->stroke(5);
  98     shape6->stroke(tvg::StrokeJoin::Miter);
  99     shape6->stroke(tvg::StrokeCap::Square);
 100
 101     float dashPattern3[2] = {10, 10};
 102     shape6->stroke(dashPattern3, 2);
 103     if (canvas->push(move(shape6)) != tvg::Result::Success) return;
 104 }
 105
 106
 107 /************************************************************************/
 108 /* Sw Engine Test Code                                                  */
 109 /************************************************************************/
 110
 111 static unique_ptr<tvg::SwCanvas> swCanvas;
 112
 113 void tvgSwTest(uint32_t* buffer)
 114 {
 115     //Create a Canvas
 116     swCanvas = tvg::SwCanvas::gen();
 117     swCanvas->target(buffer, WIDTH, WIDTH, HEIGHT, tvg::SwCanvas::ARGB8888);
 118
 119     /* Push the shape into the Canvas drawing list
 120        When this shape is into the canvas list, the shape could update & prepare
 121        internal data asynchronously for coming rendering.
 122        Canvas keeps this shape node unless user call canvas->clear() */
 123     tvgDrawCmds(swCanvas.get());
 124 }
 125
 126 void drawSwView(void* data, Eo* obj)
 127 {
 128     if (swCanvas->draw() == tvg::Result::Success) {
 129         swCanvas->sync();
 130     }
 131 }
 132
 133
 134 /************************************************************************/
 135 /* GL Engine Test Code                                                  */
 136 /************************************************************************/
 137
 138 static unique_ptr<tvg::GlCanvas> glCanvas;
 139
 140 void initGLview(Evas_Object *obj)
 141 {
 142     static constexpr auto BPP = 4;
 143
 144     //Create a Canvas
 145     glCanvas = tvg::GlCanvas::gen();
 146     glCanvas->target(nullptr, WIDTH * BPP, WIDTH, HEIGHT);
 147
 148     /* Push the shape into the Canvas drawing list
 149        When this shape is into the canvas list, the shape could update & prepare
 150        internal data asynchronously for coming rendering.
 151        Canvas keeps this shape node unless user call canvas->clear() */
 152     tvgDrawCmds(glCanvas.get());
 153 }
 154
 155 void drawGLview(Evas_Object *obj)
 156 {
 157     auto gl = elm_glview_gl_api_get(obj);
 158     gl->glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
 159     gl->glClear(GL_COLOR_BUFFER_BIT);
 160
 161     if (glCanvas->draw() == tvg::Result::Success) {
 162         glCanvas->sync();
 163     }
 164 }
 165
 166
 167 /************************************************************************/
 168 /* Main Code                                                            */
 169 /************************************************************************/
 170
 171 int main(int argc, char **argv)
 172 {
 173     tvg::CanvasEngine tvgEngine = tvg::CanvasEngine::Sw;
 174
 175     if (argc > 1) {
 176         if (!strcmp(argv[1], "gl")) tvgEngine = tvg::CanvasEngine::Gl;
 177     }
 178
 179     //Initialize ThorVG Engine
 180     if (tvgEngine == tvg::CanvasEngine::Sw) {
 181         cout << "tvg engine: software" << endl;
 182     } else {
 183         cout << "tvg engine: opengl" << endl;
 184     }
 185
 186     //Threads Count
 187     auto threads = std::thread::hardware_concurrency();
 188
 189     //Initialize ThorVG Engine
 190     if (tvg::Initializer::init(tvgEngine, threads) == tvg::Result::Success) {
 191
 192
 193         elm_init(argc, argv);
 194
 195         if (tvgEngine == tvg::CanvasEngine::Sw) {
 196             createSwView();
 197         } else {
 198             createGlView();
 199         }
 200
 201         elm_run();
 202         elm_shutdown();
 203
 204         //Terminate ThorVG Engine
 205         tvg::Initializer::term(tvgEngine);
 206
 207     } else {
 208         cout << "engine is not supported" << endl;
 209     }
 210     return 0;
 211 }