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Don't attempt to draw an invalid area

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If we don't intersect, the area is invalid or of size 0.
This commit is contained in:
Marc-André Lureau 2012-06-19 17:26:32 +02:00
parent b79f3e148b
commit 8ee2675649
1 changed files with 4 additions and 2 deletions
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6
gtk/spice-widget.c
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@ -878,7 +878,8 @@ static gboolean draw_event(GtkWidget *widget, cairo_t *cr)
SpiceDisplayPrivate *d = SPICE_DISPLAY_GET_PRIVATE(display);
g_return_val_if_fail(d != NULL, false);
if (d->mark == 0 || d->data == NULL)
if (d->mark == 0 || d->data == NULL ||
d->area.width == 0 || d->area.height == 0)
return false;
g_return_val_if_fail(d->ximage != NULL, false);
@ -894,7 +895,8 @@ static gboolean expose_event(GtkWidget *widget, GdkEventExpose *expose)
SpiceDisplayPrivate *d = SPICE_DISPLAY_GET_PRIVATE(display);
g_return_val_if_fail(d != NULL, false);
if (d->mark == 0 || d->data == NULL)
if (d->mark == 0 || d->data == NULL ||
d->area.width == 0 || d->area.height == 0)
return false;
g_return_val_if_fail(d->ximage != NULL, false);