bsnes/phoenix/gtk/widget/horizontal-slider.cpp

43 lines
1.2 KiB
C++

namespace phoenix {
static void HorizontalSlider_change(GtkRange* gtkRange, HorizontalSlider* self) {
unsigned position = (unsigned)gtk_range_get_value(gtkRange);
if(self->state.position == position) return;
self->state.position = position;
if(self->onChange) self->onChange();
}
Size pHorizontalSlider::minimumSize() {
return {0, 20};
}
void pHorizontalSlider::setLength(unsigned length) {
length += length == 0;
gtk_range_set_range(GTK_RANGE(gtkWidget), 0, max(1u, length - 1));
gtk_range_set_increments(GTK_RANGE(gtkWidget), 1, length >> 3);
}
void pHorizontalSlider::setPosition(unsigned position) {
gtk_range_set_value(GTK_RANGE(gtkWidget), position);
}
void pHorizontalSlider::constructor() {
gtkWidget = gtk_hscale_new_with_range(0, 100, 1);
gtk_scale_set_draw_value(GTK_SCALE(gtkWidget), false);
g_signal_connect(G_OBJECT(gtkWidget), "value-changed", G_CALLBACK(HorizontalSlider_change), (gpointer)&horizontalSlider);
setLength(horizontalSlider.state.length);
setPosition(horizontalSlider.state.position);
}
void pHorizontalSlider::destructor() {
gtk_widget_destroy(gtkWidget);
}
void pHorizontalSlider::orphan() {
destructor();
constructor();
}
}