thorvg/test/testUpdate.cpp

#include <tizenvg.h>
#include <Elementary.h>

using namespace std;

#define WIDTH 800
#define HEIGHT 800

static uint32_t buffer[WIDTH * HEIGHT];
unique_ptr<tvg::SwCanvas> canvas = nullptr;

void tvgtest()
{
   //Create a Canvas
   canvas = tvg::SwCanvas::gen();
   canvas->target(buffer, WIDTH, WIDTH, HEIGHT);

   //Shape
   auto shape = tvg::ShapeNode::gen();
   shape->appendRect(-100, -100, 200, 200, 0);
   shape->fill(255, 255, 255, 255);
   canvas->push(move(shape));

   //Draw first frame
   canvas->draw();
   canvas->sync();
}

void transit_cb(Elm_Transit_Effect *effect, Elm_Transit* transit, double progress)
{
   //Explicitly clear all retained paint nodes.
   canvas->clear();

   //Shape
   auto shape = tvg::ShapeNode::gen();
   shape->appendRect(-100 + (800 * progress), -100 + (800 * progress), 200, 200, (100 * progress));
   shape->fill(rand()%255, rand()%255, rand()%255, 255);
   canvas->push(move(shape));

   //Draw Next frames
   canvas->draw();
   canvas->sync();

   //Update Efl Canvas
   Eo* img = (Eo*) effect;
   evas_object_image_data_update_add(img, 0, 0, WIDTH, HEIGHT);
}

void
win_del(void *data, Evas_Object *o, void *ev)
{
   elm_exit();
}

int main(int argc, char **argv)
{
   //Initialize TizenVG Engine
   tvg::Engine::init();

   tvgtest();

   //Show the result using EFL...
   elm_init(argc, argv);

   Eo* win = elm_win_util_standard_add(NULL, "TizenVG Test");
   evas_object_smart_callback_add(win, "delete,request", win_del, 0);

   Eo* img = evas_object_image_filled_add(evas_object_evas_get(win));
   evas_object_image_size_set(img, WIDTH, HEIGHT);
   evas_object_image_data_set(img, buffer);
   evas_object_size_hint_weight_set(img, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   evas_object_show(img);

   elm_win_resize_object_add(win, img);
   evas_object_geometry_set(win, 0, 0, WIDTH, HEIGHT);
   evas_object_show(win);

   Elm_Transit *transit = elm_transit_add();
   elm_transit_effect_add(transit, transit_cb, img, nullptr);
   elm_transit_duration_set(transit, 2);
   elm_transit_repeat_times_set(transit, -1);
   elm_transit_auto_reverse_set(transit, EINA_TRUE);
   elm_transit_go(transit);

   elm_run();
   elm_shutdown();

   //Terminate TizenVG Engine
   tvg::Engine::term();
}