75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
// 11 june 2015
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#include "uipriv_unix.h"
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// LONGTERM:
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// - in GTK+ 3.22 at least, running both a GtkProgressBar and a GtkCellRendererProgress in pulse mode with our code will cause the former to slow down and eventually stop, and I can't tell why at all
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struct uiProgressBar {
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uiUnixControl c;
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GtkWidget *widget;
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GtkProgressBar *pbar;
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gboolean indeterminate;
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guint pulser;
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};
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uiUnixControlAllDefaultsExceptDestroy(uiProgressBar)
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static void uiProgressBarDestroy(uiControl *c)
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{
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uiProgressBar *p = uiProgressBar(c);
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// be sure to stop the timeout now
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if (p->indeterminate)
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g_source_remove(p->pulser);
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g_object_unref(p->widget);
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uiFreeControl(uiControl(p));
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}
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int uiProgressBarValue(uiProgressBar *p)
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{
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if (p->indeterminate)
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return -1;
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return (int) (gtk_progress_bar_get_fraction(p->pbar) * 100);
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}
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static gboolean pulse(void* data)
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{
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uiProgressBar *p = uiProgressBar(data);
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gtk_progress_bar_pulse(p->pbar);
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return TRUE;
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}
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void uiProgressBarSetValue(uiProgressBar *p, int value)
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{
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if (value == -1) {
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if (!p->indeterminate) {
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p->indeterminate = TRUE;
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// TODO verify the timeout
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p->pulser = g_timeout_add(100, pulse, p);
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}
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return;
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}
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if (p->indeterminate) {
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p->indeterminate = FALSE;
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g_source_remove(p->pulser);
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}
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if (value < 0 || value > 100)
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uiprivUserBug("Value %d is out of range for a uiProgressBar.", value);
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gtk_progress_bar_set_fraction(p->pbar, ((gdouble) value) / 100);
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}
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uiProgressBar *uiNewProgressBar(void)
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{
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uiProgressBar *p;
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uiUnixNewControl(uiProgressBar, p);
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p->widget = gtk_progress_bar_new();
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p->pbar = GTK_PROGRESS_BAR(p->widget);
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return p;
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}
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