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example/capi: chores++
This commit is contained in:
Hermet Park
parent
c854a7207f
commit
57dd66de1b
1 changed files with 176 additions and 195 deletions
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@ -37,202 +37,181 @@ static Tvg_Animation* animation = NULL;
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void contents()
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{
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//////1. Linear gradient shape with a linear gradient stroke
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//Set a shape
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Tvg_Paint* shape1 = tvg_shape_new();
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tvg_shape_move_to(shape1, 25.0f, 25.0f);
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tvg_shape_line_to(shape1, 375.0f, 25.0f);
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tvg_shape_cubic_to(shape1, 500.0f, 100.0f, -500.0f, 200.0f, 375.0f, 375.0f);
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tvg_shape_close(shape1);
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//Prepare a gradient for the fill
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Tvg_Gradient* grad1 = tvg_linear_gradient_new();
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tvg_linear_gradient_set(grad1, 25.0f, 25.0f, 200.0f, 200.0f);
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Tvg_Color_Stop color_stops1[4] =
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//Linear gradient shape with a linear gradient stroke
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{
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{0.00f, 255, 0, 0, 155},
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{0.33f, 0, 255, 0, 100},
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{0.66f, 255, 0, 255, 100},
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{1.00f, 0, 0, 255, 155}
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};
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tvg_gradient_set_color_stops(grad1, color_stops1, 4);
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tvg_gradient_set_spread(grad1, TVG_STROKE_FILL_REFLECT);
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//Set a shape
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Tvg_Paint* shape1 = tvg_shape_new();
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tvg_shape_move_to(shape1, 25.0f, 25.0f);
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tvg_shape_line_to(shape1, 375.0f, 25.0f);
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tvg_shape_cubic_to(shape1, 500.0f, 100.0f, -500.0f, 200.0f, 375.0f, 375.0f);
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tvg_shape_close(shape1);
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//Prepare a gradient for the stroke
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Tvg_Gradient* grad1_stroke = tvg_gradient_duplicate(grad1);
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//Prepare a gradient for the fill
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Tvg_Gradient* grad = tvg_linear_gradient_new();
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tvg_linear_gradient_set(grad, 25.0f, 25.0f, 200.0f, 200.0f);
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Tvg_Color_Stop color_stops[4] = {{0.00f, 255, 0, 0, 155}, {0.33f, 0, 255, 0, 100}, {0.66f, 255, 0, 255, 100}, {1.00f, 0, 0, 255, 155}};
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tvg_gradient_set_color_stops(grad, color_stops, 4);
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tvg_gradient_set_spread(grad, TVG_STROKE_FILL_REFLECT);
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//Set a gradient fill
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tvg_shape_set_gradient(shape1, grad1);
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//Prepare a gradient for the stroke
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Tvg_Gradient* grad_stroke = tvg_gradient_duplicate(grad);
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//Set a gradient stroke
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tvg_shape_set_stroke_width(shape1, 20.0f);
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tvg_shape_set_stroke_gradient(shape1, grad1_stroke);
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tvg_shape_set_stroke_join(shape1, TVG_STROKE_JOIN_ROUND);
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//Set a gradient fill
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tvg_shape_set_gradient(shape1, grad);
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//Set a gradient stroke
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tvg_shape_set_stroke_width(shape1, 20.0f);
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tvg_shape_set_stroke_gradient(shape1, grad_stroke);
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tvg_shape_set_stroke_join(shape1, TVG_STROKE_JOIN_ROUND);
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//////2. Solid transformed shape
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//Set a shape
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const Tvg_Path_Command* cmds;
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const Tvg_Point* pts;
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uint32_t cmdCnt, ptsCnt;
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tvg_shape_get_path(shape1, &cmds, &cmdCnt, &pts, &ptsCnt);
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tvg_canvas_push(canvas, shape1);
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}
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Tvg_Paint* shape2 = tvg_shape_new();
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tvg_shape_append_path(shape2, cmds, cmdCnt, pts, ptsCnt);
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tvg_shape_set_fill_color(shape2, 255, 255, 255, 128);
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//Transform a shape
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tvg_paint_scale(shape2, 0.3f);
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tvg_paint_translate(shape2, 100.0f, 100.0f);
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//Push shapes 1 and 2 into the canvas
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tvg_canvas_push(canvas, shape1);
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tvg_canvas_push(canvas, shape2);
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//////3. Radial gradient shape with a radial dashed stroke
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//Set a shape
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Tvg_Paint* shape3 = tvg_shape_new();
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tvg_shape_append_rect(shape3, 550.0f, 20.0f, 100.0f, 50.0f, 0.0f, 0.0f, true);
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tvg_shape_append_circle(shape3, 600.0f, 150.0f, 100.0f, 50.0f, true);
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tvg_shape_append_rect(shape3, 550.0f, 230.0f, 100.0f, 100.0f, 20.0f, 40.0f, true);
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//Prepare a radial gradient for the fill
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Tvg_Gradient* grad2 = tvg_radial_gradient_new();
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tvg_radial_gradient_set(grad2, 600.0f, 180.0f, 50.0f, 640.0f, 180.0f, 0.0f);
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Tvg_Color_Stop color_stops2[3] =
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//Solid transformed shape
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{
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{0.0f, 255, 0, 255, 255},
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{0.5f, 0, 0, 255, 255},
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{1.0f, 50, 55, 155, 255}
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};
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tvg_gradient_set_color_stops(grad2, color_stops2, 3);
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tvg_gradient_set_spread(grad2, TVG_STROKE_FILL_PAD);
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//Set a shape
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Tvg_Paint* shape = tvg_shape_new();
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tvg_shape_move_to(shape, 25.0f, 25.0f);
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tvg_shape_line_to(shape, 375.0f, 25.0f);
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tvg_shape_cubic_to(shape, 500.0f, 100.0f, -500.0f, 200.0f, 375.0f, 375.0f);
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tvg_shape_close(shape);
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tvg_shape_set_fill_color(shape, 255, 255, 255, 128);
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//Set a gradient fill
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tvg_shape_set_gradient(shape3, grad2);
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//Transform a shape
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tvg_paint_scale(shape, 0.3f);
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tvg_paint_translate(shape, 100.0f, 100.0f);
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//Prepare a radial gradient for the stroke
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uint32_t cnt;
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const Tvg_Color_Stop* color_stops2_get;
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tvg_gradient_get_color_stops(grad2, &color_stops2_get, &cnt);
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float cx, cy, r, fx, fy, fr;
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tvg_radial_gradient_get(grad2, &cx, &cy, &r, &fx, &fy, &fr);
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Tvg_Gradient* grad2_stroke = tvg_radial_gradient_new();
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tvg_radial_gradient_set(grad2_stroke, cx, cy, r, fx, fy, fr);
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tvg_gradient_set_color_stops(grad2_stroke, color_stops2_get, cnt);
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tvg_gradient_set_spread(grad2_stroke, TVG_STROKE_FILL_REPEAT);
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//Set a gradient stroke
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tvg_shape_set_stroke_width(shape3, 30.0f);
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tvg_shape_set_stroke_gradient(shape3, grad2_stroke);
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tvg_paint_set_opacity(shape3, 200);
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//Push the shape into the canvas
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tvg_canvas_push(canvas, shape3);
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tvg_canvas_push(canvas, shape);
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}
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//////4. Scene
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//Set a scene
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Tvg_Paint* scene = tvg_scene_new();
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//Radial gradient shape with a radial dashed stroke
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{
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//Set a shape
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Tvg_Paint* shape = tvg_shape_new();
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tvg_shape_append_rect(shape, 550.0f, 20.0f, 100.0f, 50.0f, 0.0f, 0.0f, true);
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tvg_shape_append_circle(shape, 600.0f, 150.0f, 100.0f, 50.0f, true);
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tvg_shape_append_rect(shape, 550.0f, 230.0f, 100.0f, 100.0f, 20.0f, 40.0f, true);
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//Set circles
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Tvg_Paint* scene_shape1 = tvg_shape_new();
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tvg_shape_append_circle(scene_shape1, 80.0f, 650.f, 40.0f, 140.0f, true);
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tvg_shape_append_circle(scene_shape1, 180.0f, 600.f, 40.0f, 60.0f, true);
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tvg_shape_set_fill_color(scene_shape1, 0, 0, 255, 150);
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tvg_shape_set_stroke_color(scene_shape1, 75, 25, 155, 255);
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tvg_shape_set_stroke_width(scene_shape1, 10.0f);
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tvg_shape_set_stroke_cap(scene_shape1, Tvg_Stroke_Cap::TVG_STROKE_CAP_ROUND);
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tvg_shape_set_stroke_join(scene_shape1, Tvg_Stroke_Join::TVG_STROKE_JOIN_ROUND);
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tvg_shape_set_trimpath(scene_shape1, 0.25f, 0.75f, true);
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//Prepare a radial gradient for the fill
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Tvg_Gradient* grad = tvg_radial_gradient_new();
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tvg_radial_gradient_set(grad, 600.0f, 180.0f, 50.0f, 640.0f, 180.0f, 0.0f);
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Tvg_Color_Stop color_stops2[3] = {{0.0f, 255, 0, 255, 255}, {0.5f, 0, 0, 255, 255}, {1.0f, 50, 55, 155, 255}};
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tvg_gradient_set_color_stops(grad, color_stops2, 3);
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tvg_gradient_set_spread(grad, TVG_STROKE_FILL_PAD);
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//Set circles with a dashed stroke
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Tvg_Paint* scene_shape2 = tvg_paint_duplicate(scene_shape1);
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tvg_shape_set_fill_color(scene_shape2, 75, 25, 155, 200);
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//Set a gradient fill
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tvg_shape_set_gradient(shape, grad);
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//Prapare a dash for the stroke
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float dashPattern[4] = {15.0f, 30.0f, 2.0f, 30.0f};
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tvg_shape_set_stroke_dash(scene_shape2, dashPattern, 4, 0.0f);
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tvg_shape_set_stroke_cap(scene_shape2, TVG_STROKE_CAP_ROUND);
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tvg_shape_set_stroke_color(scene_shape2, 0, 0, 255, 255);
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tvg_shape_set_stroke_width(scene_shape2, 15.0f);
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//Prepare a radial gradient for the stroke
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uint32_t cnt;
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const Tvg_Color_Stop* color_stops2_get;
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tvg_gradient_get_color_stops(grad, &color_stops2_get, &cnt);
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//Transform a shape
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tvg_paint_scale(scene_shape2, 0.8f);
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tvg_paint_rotate(scene_shape2, -90.0f);
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tvg_paint_translate(scene_shape2, -200.0f, 800.0f);
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float cx, cy, r, fx, fy, fr;
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tvg_radial_gradient_get(grad, &cx, &cy, &r, &fx, &fy, &fr);
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//Push the shapes into the scene
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tvg_scene_push(scene, scene_shape1);
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tvg_scene_push(scene, scene_shape2);
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Tvg_Gradient* grad_stroke = tvg_radial_gradient_new();
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tvg_radial_gradient_set(grad_stroke, cx, cy, r, fx, fy, fr);
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tvg_gradient_set_color_stops(grad_stroke, color_stops2_get, cnt);
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tvg_gradient_set_spread(grad_stroke, TVG_STROKE_FILL_REPEAT);
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//Push the scene into the canvas
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tvg_canvas_push(canvas, scene);
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//Set a gradient stroke
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tvg_shape_set_stroke_width(shape, 30.0f);
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tvg_shape_set_stroke_gradient(shape, grad_stroke);
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//////5. Masked picture
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//Set a scene
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Tvg_Paint* pict = tvg_picture_new();
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if (tvg_picture_load(pict, EXAMPLE_DIR"/svg/tiger.svg") != TVG_RESULT_SUCCESS) {
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printf("Problem with loading an svg file\n");
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tvg_paint_del(pict);
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} else {
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float w, h;
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tvg_picture_get_size(pict, &w, &h);
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tvg_picture_set_size(pict, w/2, h/2);
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Tvg_Matrix m = {0.8f, 0.0f, 400.0f, 0.0f, 0.8f, 400.0f, 0.0f, 0.0f, 1.0f};
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tvg_paint_set_transform(pict, &m);
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tvg_paint_set_opacity(shape, 200);
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// Set a composite shape
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Tvg_Paint* comp = tvg_shape_new();
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tvg_shape_append_circle(comp, 600.0f, 600.0f, 100.0f, 100.0f, true);
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tvg_shape_set_fill_color(comp, 0, 0, 0, 200);
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tvg_paint_set_mask_method(pict, comp, TVG_MASK_METHOD_INVERSE_ALPHA);
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//Push the shape into the canvas
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tvg_canvas_push(canvas, shape);
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}
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//Scene
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{
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//Set a scene
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Tvg_Paint* scene = tvg_scene_new();
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//Set circles
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Tvg_Paint* scene_shape1 = tvg_shape_new();
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tvg_shape_append_circle(scene_shape1, 80.0f, 650.f, 40.0f, 140.0f, true);
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tvg_shape_append_circle(scene_shape1, 180.0f, 600.f, 40.0f, 60.0f, true);
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tvg_shape_set_fill_color(scene_shape1, 0, 0, 255, 150);
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tvg_shape_set_stroke_color(scene_shape1, 75, 25, 155, 255);
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tvg_shape_set_stroke_width(scene_shape1, 10.0f);
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tvg_shape_set_stroke_cap(scene_shape1, Tvg_Stroke_Cap::TVG_STROKE_CAP_ROUND);
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tvg_shape_set_stroke_join(scene_shape1, Tvg_Stroke_Join::TVG_STROKE_JOIN_ROUND);
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tvg_shape_set_trimpath(scene_shape1, 0.25f, 0.75f, true);
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//Set circles with a dashed stroke
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Tvg_Paint* scene_shape2 = tvg_paint_duplicate(scene_shape1);
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tvg_shape_set_fill_color(scene_shape2, 75, 25, 155, 200);
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//Prapare a dash for the stroke
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float dashPattern[4] = {15.0f, 30.0f, 2.0f, 30.0f};
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tvg_shape_set_stroke_dash(scene_shape2, dashPattern, 4, 0.0f);
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tvg_shape_set_stroke_cap(scene_shape2, TVG_STROKE_CAP_ROUND);
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tvg_shape_set_stroke_color(scene_shape2, 0, 0, 255, 255);
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tvg_shape_set_stroke_width(scene_shape2, 15.0f);
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//Transform a shape
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tvg_paint_scale(scene_shape2, 0.8f);
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tvg_paint_rotate(scene_shape2, -90.0f);
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tvg_paint_translate(scene_shape2, -200.0f, 800.0f);
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//Push the shapes into the scene
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tvg_scene_push(scene, scene_shape1);
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tvg_scene_push(scene, scene_shape2);
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//Push the scene into the canvas
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tvg_canvas_push(canvas, pict);
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tvg_canvas_push(canvas, scene);
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}
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//////6. Animation with a picture
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//instead loading from a memory, an animation can be loaded directly from a file using:
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//tvg_picture_load(pict_lottie, EXAMPLE_DIR"/lottie/sample.json")
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FILE *file = fopen(EXAMPLE_DIR"/lottie/sample.json", "r");
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if (file == NULL) return;
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fseek(file, 0, SEEK_END);
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long data_size = ftell(file);
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fseek(file, 0, SEEK_SET);
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auto data = (char*)malloc(data_size + 1);
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if (!data) return;
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if (fread(data, 1, data_size, file) != (size_t)data_size) {
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free(data);
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fclose(file);
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return;
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}
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//ensure null-termination in case tvg_picture_load_data is called with copy = false
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data[data_size++] = '\0';
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//Masked picture
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{
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//Set a scene
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Tvg_Paint* pict = tvg_picture_new();
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if (tvg_picture_load(pict, EXAMPLE_DIR"/svg/tiger.svg") != TVG_RESULT_SUCCESS) {
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printf("Problem with loading an svg file\n");
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tvg_paint_del(pict);
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} else {
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float w, h;
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tvg_picture_get_size(pict, &w, &h);
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tvg_picture_set_size(pict, w/2, h/2);
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Tvg_Matrix m = {0.8f, 0.0f, 400.0f, 0.0f, 0.8f, 400.0f, 0.0f, 0.0f, 1.0f};
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tvg_paint_set_transform(pict, &m);
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animation = tvg_animation_new();
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Tvg_Paint* pict_lottie = tvg_animation_get_picture(animation);
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if (tvg_picture_load_data(pict_lottie, data, data_size, "lot", nullptr, false) != TVG_RESULT_SUCCESS) {
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printf("Problem with loading a lottie file\n");
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tvg_animation_del(animation);
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} else {
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tvg_paint_scale(pict_lottie, 3.0f);
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tvg_canvas_push(canvas, pict_lottie);
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// Set a composite shape
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Tvg_Paint* comp = tvg_shape_new();
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tvg_shape_append_circle(comp, 600.0f, 600.0f, 100.0f, 100.0f, true);
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tvg_shape_set_fill_color(comp, 0, 0, 0, 200);
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tvg_paint_set_mask_method(pict, comp, TVG_MASK_METHOD_INVERSE_ALPHA);
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//Push the scene into the canvas
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tvg_canvas_push(canvas, pict);
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}
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}
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free(data);
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fclose(file);
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//Animation with a picture
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{
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animation = tvg_animation_new();
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Tvg_Paint* pict_lottie = tvg_animation_get_picture(animation);
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if (tvg_picture_load(pict_lottie, EXAMPLE_DIR"/lottie/sample.json") != TVG_RESULT_SUCCESS) {
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printf("Problem with loading a lottie file\n");
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tvg_animation_del(animation);
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animation = NULL;
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} else {
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tvg_paint_scale(pict_lottie, 0.75f);
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tvg_canvas_push(canvas, pict_lottie);
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}
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}
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//Text 1
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{
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//load from a file
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if (tvg_font_load(EXAMPLE_DIR"/font/SentyCloud.ttf") != TVG_RESULT_SUCCESS) {
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printf("Problem with loading the font from the file. Did you enable TTF Loader?\n");
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}
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//////7. Text
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//load from a file
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if (tvg_font_load(EXAMPLE_DIR"/font/SentyCloud.ttf") != TVG_RESULT_SUCCESS) {
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printf("Problem with loading the font from the file. Did you enable TTF Loader?\n");
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} else {
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Tvg_Paint *text = tvg_text_new();
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tvg_text_set_font(text, "SentyCloud", 25.0f, "");
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tvg_text_set_fill_color(text, 0, 0, 255);
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@ -240,30 +219,28 @@ void contents()
|
|||
tvg_paint_translate(text, 50.0f, 380.0f);
|
||||
tvg_canvas_push(canvas, text);
|
||||
}
|
||||
//load from a memory
|
||||
file = fopen(EXAMPLE_DIR"/font/SentyCloud.ttf", "rb");
|
||||
if (file == NULL) return;
|
||||
fseek(file, 0, SEEK_END);
|
||||
data_size = ftell(file);
|
||||
fseek(file, 0, SEEK_SET);
|
||||
data = (char*)malloc(data_size);
|
||||
if (!data) return;
|
||||
if (fread(data, 1, data_size, file) != (size_t)data_size) {
|
||||
free(data);
|
||||
fclose(file);
|
||||
return;
|
||||
}
|
||||
if (tvg_font_load_data("Arial", data, data_size, "ttf", true) != TVG_RESULT_SUCCESS) {
|
||||
printf("Problem with loading the font file from a memory. Did you enable TTF Loader?\n");
|
||||
} else {
|
||||
//Radial gradient
|
||||
|
||||
//Text 2
|
||||
{
|
||||
//load from a memory
|
||||
FILE* file = fopen(EXAMPLE_DIR"/font/Arial.ttf", "rb");
|
||||
if (file) {
|
||||
fseek(file, 0, SEEK_END);
|
||||
size_t data_size = ftell(file);
|
||||
fseek(file, 0, SEEK_SET);
|
||||
char* data = (char*)malloc(data_size);
|
||||
if (fread(data, 1, data_size, file) == data_size) {
|
||||
if (tvg_font_load_data("Arial", data, data_size, "ttf", true) != TVG_RESULT_SUCCESS) {
|
||||
printf("Problem with loading the font file from a memory. Did you enable TTF Loader?\n");
|
||||
}
|
||||
}
|
||||
free(data);
|
||||
fclose(file);
|
||||
}
|
||||
|
||||
Tvg_Gradient* grad = tvg_radial_gradient_new();
|
||||
tvg_radial_gradient_set(grad, 200.0f, 200.0f, 20.0f, 200.0f, 200.0f, 0.0f);
|
||||
Tvg_Color_Stop color_stops[2] =
|
||||
{
|
||||
{0.0f, 255, 0, 255, 255},
|
||||
{1.0f, 0, 0, 255, 255}
|
||||
};
|
||||
Tvg_Color_Stop color_stops[2] = {{0.0f, 255, 0, 255, 255}, {1.0f, 0, 0, 255, 255}};
|
||||
tvg_gradient_set_color_stops(grad, color_stops, 2);
|
||||
tvg_gradient_set_spread(grad, TVG_STROKE_FILL_REFLECT);
|
||||
|
||||
|
|
@ -274,8 +251,6 @@ void contents()
|
|||
tvg_paint_translate(text, 70.0f, 420.0f);
|
||||
tvg_canvas_push(canvas, text);
|
||||
}
|
||||
free(data);
|
||||
fclose(file);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -306,13 +281,19 @@ int main(int argc, char **argv)
|
|||
|
||||
contents();
|
||||
|
||||
//display the first frame
|
||||
tvg_canvas_draw(canvas, true);
|
||||
tvg_canvas_sync(canvas);
|
||||
SDL_UpdateWindowSurface(window);
|
||||
|
||||
//app main loop!
|
||||
SDL_Event event;
|
||||
auto running = true;
|
||||
auto ptime = SDL_GetTicks();
|
||||
auto elapsed = 0;
|
||||
|
||||
while (running) {
|
||||
//SDL Event handling
|
||||
//SDL event handling
|
||||
while (SDL_PollEvent(&event)) {
|
||||
switch (event.type) {
|
||||
case SDL_QUIT: {
|
||||
|
|
@ -328,7 +309,7 @@ int main(int argc, char **argv)
|
|||
}
|
||||
}
|
||||
|
||||
//Update the animation
|
||||
//update the animation
|
||||
if (animation) {
|
||||
float duration, totalFrame;
|
||||
tvg_animation_get_duration(animation, &duration);
|
||||
|
|
@ -336,7 +317,7 @@ int main(int argc, char **argv)
|
|||
tvg_animation_set_frame(animation, totalFrame * progress(elapsed, duration));
|
||||
}
|
||||
|
||||
//Draw the canvas
|
||||
//draw the canvas
|
||||
tvg_canvas_update(canvas);
|
||||
tvg_canvas_draw(canvas, true);
|
||||
tvg_canvas_sync(canvas);
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue