common scene: design load()/save() interfaces

these interfaces will perform for vector resources such as svg/tvg/etc ...

see testSvg examples

Change-Id: Icec0a4682301a13646868bd7c3bfc1771ae7db2c

.gitignore

@@ -17,3 +17,5 @@ testStrokeLine
 testLinearGradient
 testRadialGradient
 testGradientTransform
+testSvg
+testSvg2

inc/tizenvg.h

@@ -71,6 +71,7 @@ enum class TVG_EXPORT StrokeJoin { Bevel = 0, Round, Miter };
 enum class TVG_EXPORT FillSpread { Pad = 0, Reflect, Repeat };
 enum class TVG_EXPORT CanvasEngine { Sw = 0, Gl };
 
+
 struct Point
 {
     float x, y;
@@ -282,6 +283,9 @@ public:
     Result push(std::unique_ptr<Paint> paint) noexcept;
     Result reserve(uint32_t size) noexcept;
 
+    Result load(const std::string& path, float w, float h, bool lazy = false) noexcept;
+    Result save(const std::string& path) noexcept;
+
     Result rotate(float degree) noexcept override;
     Result scale(float factor) noexcept override;
     Result translate(float x, float y) noexcept override;

src/lib/tvgScene.cpp

@@ -107,4 +107,27 @@ Result Scene::bounds(float* x, float* y, float* w, float* h) const noexcept
     return Result::Success;
 }
 
+
+Result Scene::load(const std::string& path, float w, float h, bool lazy) noexcept
+{
+    if (path.empty()) return Result::InvalidArguments;
+
+    auto impl = pImpl.get();
+    if (!impl) return Result::MemoryCorruption;
+
+    return impl->load(path, w, h, lazy);
+}
+
+
+Result Scene::save(const std::string& path) noexcept
+{
+    if (path.empty()) return Result::InvalidArguments;
+
+    auto impl = pImpl.get();
+    if (!impl) return Result::MemoryCorruption;
+
+    return impl->save(path);
+}
+
+
 #endif /* _TVG_SCENE_CPP_ */

src/lib/tvgSceneImpl.h

@@ -191,6 +191,16 @@ struct Scene::Impl
 
         return true;
     }
+
+    Result load(const string& path, float w, float h, bool lazy)
+    {
+        return Result::Success;
+    }
+
+    Result save(const string& path)
+    {
+        return Result::Success;
+    }
 };
 
 #endif //_TVG_SCENE_IMPL_H_

test/makefile

@@ -15,3 +15,5 @@ all:
 	gcc -o testLinearGradient testLinearGradient.cpp -g -lstdc++ `pkg-config --cflags --libs elementary tizenvg`
 	gcc -o testRadialGradient testRadialGradient.cpp -g -lstdc++ `pkg-config --cflags --libs elementary tizenvg`
 	gcc -o testGradientTransform testGradientTransform.cpp -g -lstdc++ `pkg-config --cflags --libs elementary tizenvg`
+	gcc -o testSvg testSvg.cpp -g -lstdc++ `pkg-config --cflags --libs elementary tizenvg`
+	gcc -o testSvg2 testSvg2.cpp -g -lstdc++ `pkg-config --cflags --libs elementary tizenvg`

test/testSvg.cpp

@@ -0,0 +1,63 @@
+#include <tizenvg.h>
+#include <Elementary.h>
+
+using namespace std;
+
+#define WIDTH 800
+#define HEIGHT 800
+
+static uint32_t buffer[WIDTH * HEIGHT];
+
+void tvgtest()
+{
+    //Initialize TizenVG Engine
+    tvg::Initializer::init(tvg::CanvasEngine::Sw);
+
+    //Create a Canvas
+    auto canvas = tvg::SwCanvas::gen();
+    canvas->target(buffer, WIDTH, WIDTH, HEIGHT);
+
+    /* Create a SVG scene, keep original size,
+       You can pass 0 x 0 size for lazying loading in this case.
+       scene->load("sample.svg", 0, 0, true); */
+    auto scene = tvg::Scene::gen();
+    scene->load("sample.svg");
+    canvas->push(move(scene));
+
+    canvas->draw();
+    canvas->sync();
+
+    //Terminate TizenVG Engine
+    tvg::Initializer::term(tvg::CanvasEngine::Sw);
+}
+
+void
+win_del(void *data, Evas_Object *o, void *ev)
+{
+   elm_exit();
+}
+
+
+int main(int argc, char **argv)
+{
+    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_run();
+    elm_shutdown();
+}

test/testSvg2.cpp

@@ -0,0 +1,67 @@
+#include <tizenvg.h>
+#include <Elementary.h>
+
+using namespace std;
+
+#define WIDTH 800
+#define HEIGHT 800
+
+static uint32_t buffer[WIDTH * HEIGHT];
+
+void tvgtest()
+{
+    //Initialize TizenVG Engine
+    tvg::Initializer::init(tvg::CanvasEngine::Sw);
+
+    //Create a Canvas
+    auto canvas = tvg::SwCanvas::gen();
+    canvas->target(buffer, WIDTH, WIDTH, HEIGHT);
+
+    //Create a SVG scene, keep aspect ratio to width/2 with lazy loading
+    auto scene = tvg::Scene::gen();
+    scene->load("sample.svg", WIDTH/2, 0, true);
+    canvas->push(move(scene));
+
+    //Create a SVG scene, keep aspect ratio to height/2 with lazy loading
+    auto scene2 = tvg::Scene::gen();
+    scene2->load("sample.svg", 0, HEIGHT/2, true);
+    scene2->translate(WIDTH/2, HEIGHT/2);
+    canvas->push(move(scene2));
+
+    canvas->draw();
+    canvas->sync();
+
+    //Terminate TizenVG Engine
+    tvg::Initializer::term(tvg::CanvasEngine::Sw);
+}
+
+void
+win_del(void *data, Evas_Object *o, void *ev)
+{
+   elm_exit();
+}
+
+
+int main(int argc, char **argv)
+{
+    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_run();
+    elm_shutdown();
+}