another UI attempt, I guess.

sorry.

src/libui_sdl/libui/unix/progressbar.c

@@ -0,0 +1,71 @@
+// 11 june 2015
+#include "uipriv_unix.h"
+
+struct uiProgressBar {
+	uiUnixControl c;
+	GtkWidget *widget;
+	GtkProgressBar *pbar;
+	gboolean indeterminate;
+	guint pulser;
+};
+
+uiUnixControlAllDefaultsExceptDestroy(uiProgressBar)
+
+static void uiProgressBarDestroy(uiControl *c)
+{
+	uiProgressBar *p = uiProgressBar(c);
+
+	// be sure to stop the timeout now
+	if (p->indeterminate)
+		g_source_remove(p->pulser);
+	g_object_unref(p->widget);
+	uiFreeControl(uiControl(p));
+}
+
+int uiProgressBarValue(uiProgressBar *p)
+{
+	if (p->indeterminate)
+		return -1;
+	return (int) (gtk_progress_bar_get_fraction(p->pbar) * 100);
+}
+
+static gboolean pulse(void* data)
+{
+	uiProgressBar *p = uiProgressBar(data);
+
+	gtk_progress_bar_pulse(p->pbar);
+	return TRUE;
+}
+
+void uiProgressBarSetValue(uiProgressBar *p, int value)
+{
+	if (value == -1) {
+		if (!p->indeterminate) {
+			p->indeterminate = TRUE;
+			// TODO verify the timeout
+			p->pulser = g_timeout_add(100, pulse, p);
+		}
+		return;
+	}
+	if (p->indeterminate) {
+		p->indeterminate = FALSE;
+		g_source_remove(p->pulser);
+	}
+
+	if (value < 0 || value > 100)
+		userbug("Value %d is out of range for a uiProgressBar.", value);
+
+	gtk_progress_bar_set_fraction(p->pbar, ((gdouble) value) / 100);
+}
+
+uiProgressBar *uiNewProgressBar(void)
+{
+	uiProgressBar *p;
+
+	uiUnixNewControl(uiProgressBar, p);
+
+	p->widget = gtk_progress_bar_new();
+	p->pbar = GTK_PROGRESS_BAR(p->widget);
+
+	return p;
+}