bsnes/hiro/windows/widget/horizontal-slider.cpp

44 lines
1.2 KiB
C++

#if defined(Hiro_HorizontalSlider)
namespace hiro {
auto pHorizontalSlider::construct() -> void {
hwnd = CreateWindow(
TRACKBAR_CLASS, L"", WS_CHILD | WS_TABSTOP | TBS_TRANSPARENTBKGND | TBS_NOTICKS | TBS_BOTH | TBS_HORZ,
0, 0, 0, 0, _parentHandle(), nullptr, GetModuleHandle(0), 0
);
SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)&reference);
pWidget::_setState();
setLength(state().length);
setPosition(state().position);
}
auto pHorizontalSlider::destruct() -> void {
DestroyWindow(hwnd);
}
auto pHorizontalSlider::minimumSize() const -> Size {
return {0, 25};
}
auto pHorizontalSlider::setLength(unsigned length) -> void {
length += (length == 0);
SendMessage(hwnd, TBM_SETRANGE, (WPARAM)true, (LPARAM)MAKELONG(0, length - 1));
SendMessage(hwnd, TBM_SETPAGESIZE, 0, (LPARAM)(length >> 3));
}
auto pHorizontalSlider::setPosition(unsigned position) -> void {
SendMessage(hwnd, TBM_SETPOS, (WPARAM)true, (LPARAM)position);
}
auto pHorizontalSlider::onChange() -> void {
unsigned position = SendMessage(hwnd, TBM_GETPOS, 0, 0);
if(position == state().position) return;
state().position = position;
self().doChange();
}
}
#endif