mirror of https://github.com/bsnes-emu/bsnes.git
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
namespace phoenix {
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static void VerticalScroller_change(GtkRange* gtkRange, VerticalScroller* self) {
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unsigned position = (unsigned)gtk_range_get_value(gtkRange);
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if(self->state.position == position) return;
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self->state.position = position;
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if(!self->p.locked && self->onChange) self->onChange();
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}
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Size pVerticalScroller::minimumSize() {
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return {20, 0};
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}
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void pVerticalScroller::setLength(unsigned length) {
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locked = true;
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length += length == 0;
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gtk_range_set_range(GTK_RANGE(gtkWidget), 0, max(1u, length - 1));
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gtk_range_set_increments(GTK_RANGE(gtkWidget), 1, length >> 3);
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locked = false;
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}
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void pVerticalScroller::setPosition(unsigned position) {
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gtk_range_set_value(GTK_RANGE(gtkWidget), position);
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}
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void pVerticalScroller::constructor() {
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gtkWidget = gtk_vscrollbar_new(0);
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g_signal_connect(G_OBJECT(gtkWidget), "value-changed", G_CALLBACK(VerticalScroller_change), (gpointer)&verticalScroller);
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setLength(verticalScroller.state.length);
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setPosition(verticalScroller.state.position);
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}
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void pVerticalScroller::destructor() {
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gtk_widget_destroy(gtkWidget);
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}
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void pVerticalScroller::orphan() {
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destructor();
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constructor();
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}
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}
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