bsnes/hiro/extension/vertical-resize-grip.cpp

51 lines
1.6 KiB
C++

#if defined(Hiro_VerticalResizeGrip)
mVerticalResizeGrip::mVerticalResizeGrip() {
image icon;
icon.allocate(15, 5);
for(uint x : range(icon.width())) {
auto data = icon.data() + x * icon.stride();
icon.write(data, 0x00000000); data += icon.pitch();
icon.write(data, 0xff9f9f9f); data += icon.pitch();
icon.write(data, 0x00000000); data += icon.pitch();
icon.write(data, 0xff9f9f9f); data += icon.pitch();
icon.write(data, 0x00000000); data += icon.pitch();
}
mCanvas::setIcon(icon);
mCanvas::setMouseCursor(MouseCursor::VerticalResize);
mCanvas::onMousePress([&](auto button) {
if(button == Mouse::Button::Left && !state.timer.enabled()) {
doActivate();
state.offset = 0;
state.origin = Mouse::position();
state.timer.setEnabled();
}
});
state.timer.setInterval(10).onActivate([&] {
if(!Mouse::pressed(Mouse::Button::Left)) return (void)state.timer.setEnabled(false);
auto position = Mouse::position();
auto offset = position.y() - state.origin.y();
if(offset != state.offset) doResize(offset), offset = state.offset;
});
}
auto mVerticalResizeGrip::doActivate() const -> void {
if(state.onActivate) state.onActivate();
}
auto mVerticalResizeGrip::doResize(int offset) const -> void {
if(state.onResize) state.onResize(offset);
}
auto mVerticalResizeGrip::onActivate(const function<void ()>& callback) -> type& {
state.onActivate = callback;
return *this;
}
auto mVerticalResizeGrip::onResize(const function<void (int)>& callback) -> type& {
state.onResize = callback;
return *this;
}
#endif