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example: ++ DirectUpdate to cover more scenarios.

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Hermet Park 2024-07-08 11:29:51 +09:00 • committed by Hermet Park
parent 300ced90c1
commit 329ab9ef4a
1 changed files with 56 additions and 19 deletions
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75
examples/DirectUpdate.cpp
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@ -28,7 +28,10 @@
struct UserExample : tvgexam::Example struct UserExample : tvgexam::Example
{ {
tvg::Shape* pShape = nullptr; tvg::Shape* solid = nullptr;
tvg::Shape* gradient = nullptr;
uint32_t w, h;
bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override
{ {
@ -43,21 +46,52 @@ struct UserExample : tvgexam::Example
canvas->push(std::move(bg)); canvas->push(std::move(bg));
//Shape //Solid Shape
auto shape = tvg::Shape::gen(); {
auto shape = tvg::Shape::gen();
/* Acquire shape pointer to access it again. /* Acquire shape pointer to access it again.
instead, you should consider not to interrupt this pointer life-cycle. */ instead, you should consider not to interrupt this pointer life-cycle. */
pShape = shape.get(); solid = shape.get();
shape->appendRect(-100, -100, 200, 200); shape->appendRect(-100, -100, 200, 200);
//fill property will be retained //fill property will be retained
shape->fill(127, 255, 255); shape->fill(127, 255, 255);
shape->strokeFill(0, 0, 255); shape->strokeFill(0, 0, 255);
shape->strokeWidth(1); shape->strokeWidth(1);
canvas->push(std::move(shape)); canvas->push(std::move(shape));
}
//Gradient Shape
{
auto shape = tvg::Shape::gen();
/* Acquire shape pointer to access it again.
instead, you should consider not to interrupt this pointer life-cycle. */
gradient = shape.get();
shape->appendRect(w - 200, 0, 200, 200);
//LinearGradient
auto fill = tvg::LinearGradient::gen();
fill->linear(w - 200, 0, w - 200 + 285, 300);
//Gradient Color Stops
tvg::Fill::ColorStop colorStops[3];
colorStops[0] = {0, 255, 0, 0, 127};
colorStops[1] = {0.5, 255, 255, 0, 127};
colorStops[2] = {1, 255, 255, 255, 127};
fill->colorStops(colorStops, 3);
shape->fill(std::move(fill));
canvas->push(std::move(shape));
}
this->w = w;
this->h = h;
return true; return true;
} }
@ -72,14 +106,17 @@ struct UserExample : tvgexam::Example
auto progress = tvgexam::progress(elapsed, 2.0f, true); //play time 2 sec. auto progress = tvgexam::progress(elapsed, 2.0f, true); //play time 2 sec.
//Reset Shape //Reset Shape
if (tvgexam::verify(pShape->reset())) { if (tvgexam::verify(solid->reset())) {
pShape->appendRect(-100 + (800 * progress), -100 + (800 * progress), 200, 200, (100 * progress), (100 * progress)); //Solid Shape
pShape->fill(127, 255, 255); solid->appendRect(-100 + (w * progress), -100 + (h * progress), 200, 200, (100 * progress), (100 * progress));
pShape->strokeFill(0, 0, 255); solid->fill(127, 255, 255);
pShape->strokeWidth(30 * progress); solid->strokeFill(0, 0, 255);
solid->strokeWidth(30 * progress);
//Update shape for drawing (this may work asynchronously) //Gradient Shape
canvas->update(pShape); gradient->translate(-(w * progress), (h * progress));
canvas->update();
return true; return true;
} }