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#if defined(Hiro_Canvas)
namespace hiro {
auto pCanvas::construct() -> void {
qtWidget = qtCanvas = new QtCanvas(*this);
qtCanvas->setMouseTracking(true);
pWidget::construct();
_rasterize();
qtCanvas->update();
}
auto pCanvas::destruct() -> void {
_release();
delete qtCanvas;
qtWidget = qtCanvas = nullptr;
}
auto pCanvas::minimumSize() const -> Size {
if(auto& icon = state().icon) return {(int)icon.width(), (int)icon.height()};
return {0, 0};
}
auto pCanvas::setColor(Color color) -> void {
update();
}
auto pCanvas::setDroppable(bool droppable) -> void {
qtCanvas->setAcceptDrops(droppable);
}
auto pCanvas::setGeometry(Geometry geometry) -> void {
update();
pWidget::setGeometry(geometry);
}
auto pCanvas::setGradient(Gradient gradient) -> void {
update();
}
auto pCanvas::setIcon(const image& icon) -> void {
update();
}
auto pCanvas::update() -> void {
_rasterize();
qtCanvas->update();
}
auto pCanvas::_rasterize() -> void {
int width = 0;
int height = 0;
if(auto& icon = state().icon) {
width = icon.width();
height = icon.height();
} else {
width = pSizable::state().geometry.width();
height = pSizable::state().geometry.height();
}
if(width <= 0 || height <= 0) return;
if(width != qtImageWidth || height != qtImageHeight) _release();
qtImageWidth = width;
qtImageHeight = height;
if(!qtImage) qtImage = new QImage(width, height, QImage::Format_ARGB32);
auto buffer = (uint32*)qtImage->bits();
if(auto& icon = state().icon) {
memory::copy(buffer, state().icon.data(), width * height * sizeof(uint32));
} else if(auto& gradient = state().gradient) {
auto& colors = gradient.state.colors;
image fill;
fill.allocate(width, height);
fill.gradient(colors[0].value(), colors[1].value(), colors[2].value(), colors[3].value());
memory::copy(buffer, fill.data(), fill.size());
} else {
uint32 color = state().color.value();
for(auto n : range(width * height)) buffer[n] = color;
}
}
auto pCanvas::_release() -> void {
if(qtImage) {
delete qtImage;
qtImage = nullptr;
}
qtImageWidth = 0;
qtImageHeight = 0;
}
auto QtCanvas::dragEnterEvent(QDragEnterEvent* event) -> void {
if(event->mimeData()->hasUrls()) {
event->acceptProposedAction();
}
}
auto QtCanvas::dropEvent(QDropEvent* event) -> void {
if(auto paths = DropPaths(event)) p.self().doDrop(paths);
}
auto QtCanvas::leaveEvent(QEvent* event) -> void {
p.self().doMouseLeave();
}
auto QtCanvas::mouseMoveEvent(QMouseEvent* event) -> void {
p.self().doMouseMove({event->pos().x(), event->pos().y()});
}
auto QtCanvas::mousePressEvent(QMouseEvent* event) -> void {
switch(event->button()) {
case Qt::LeftButton: p.self().doMousePress(Mouse::Button::Left); break;
case Qt::MidButton: p.self().doMousePress(Mouse::Button::Middle); break;
case Qt::RightButton: p.self().doMousePress(Mouse::Button::Right); break;
}
}
auto QtCanvas::mouseReleaseEvent(QMouseEvent* event) -> void {
switch(event->button()) {
case Qt::LeftButton: p.self().doMouseRelease(Mouse::Button::Left); break;
case Qt::MidButton: p.self().doMouseRelease(Mouse::Button::Middle); break;
case Qt::RightButton: p.self().doMouseRelease(Mouse::Button::Right); break;
}
}
auto QtCanvas::paintEvent(QPaintEvent* event) -> void {
if(!p.qtImage) return;
signed sx = 0, sy = 0, dx = 0, dy = 0;
signed width = p.qtImageWidth;
signed height = p.qtImageHeight;
auto geometry = p.pSizable::state().geometry;
if(width <= geometry.width()) {
sx = 0;
dx = (geometry.width() - width) / 2;
} else {
sx = (width - geometry.width()) / 2;
dx = 0;
width = geometry.width();
}
if(height <= geometry.height()) {
sy = 0;
dy = (geometry.height() - height) / 2;
} else {
sy = (height - geometry.height()) / 2;
dy = 0;
height = geometry.height();
}
QPainter painter(p.qtCanvas);
painter.drawImage(dx, dy, *p.qtImage, sx, sy, width, height);
}
}
#endif
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