1 files changed, 71 insertions, 0 deletions
diff --git a/src/libui_sdl/libui/unix/slider.c b/src/libui_sdl/libui/unix/slider.c
new file mode 100644
index 0000000..7f0cc24
--- /dev/null
+++ b/src/libui_sdl/libui/unix/slider.c
@@ -0,0 +1,71 @@
+// 11 june 2015
+#include "uipriv_unix.h"
+
+struct uiSlider {
+	uiUnixControl c;
+	GtkWidget *widget;
+	GtkRange *range;
+	GtkScale *scale;
+	void (*onChanged)(uiSlider *, void *);
+	void *onChangedData;
+	gulong onChangedSignal;
+};
+
+uiUnixControlAllDefaults(uiSlider)
+
+static void onChanged(GtkRange *range, gpointer data)
+{
+	uiSlider *s = uiSlider(data);
+
+	(*(s->onChanged))(s, s->onChangedData);
+}
+
+static void defaultOnChanged(uiSlider *s, void *data)
+{
+	// do nothing
+}
+
+int uiSliderValue(uiSlider *s)
+{
+	return gtk_range_get_value(s->range);
+}
+
+void uiSliderSetValue(uiSlider *s, int value)
+{
+	// we need to inhibit sending of ::value-changed because this WILL send a ::value-changed otherwise
+	g_signal_handler_block(s->range, s->onChangedSignal);
+	gtk_range_set_value(s->range, value);
+	g_signal_handler_unblock(s->range, s->onChangedSignal);
+}
+
+void uiSliderOnChanged(uiSlider *s, void (*f)(uiSlider *, void *), void *data)
+{
+	s->onChanged = f;
+	s->onChangedData = data;
+}
+
+uiSlider *uiNewSlider(int min, int max)
+{
+	uiSlider *s;
+	int temp;
+
+	if (min >= max) {
+		temp = min;
+		min = max;
+		max = temp;
+	}
+
+	uiUnixNewControl(uiSlider, s);
+
+	s->widget = gtk_scale_new_with_range(GTK_ORIENTATION_HORIZONTAL, min, max, 1);
+	s->range = GTK_RANGE(s->widget);
+	s->scale = GTK_SCALE(s->widget);
+
+	// ensure integers, just to be safe
+	gtk_scale_set_digits(s->scale, 0);
+
+	s->onChangedSignal = g_signal_connect(s->scale, "value-changed", G_CALLBACK(onChanged), s);
+	uiSliderOnChanged(s, defaultOnChanged, NULL);
+
+	return s;
+}