Avoided flickering when playing on the borders of the glance panel.

git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@287 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a

2 files changed, 11 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index 6dcedb6..f5e628d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 12-11-20  Cyrille Bagard <nocbos@gmail.com>
 
+	* src/gui/panels/glance.c:
+	Avoid flickering when playing on the borders of the glance panel.
+
+12-11-20  Cyrille Bagard <nocbos@gmail.com>
+
 	* plugins/androhelpers/try_n_catch.c:
 	Fix some links to Dalvik exception handlers.
 
diff --git a/src/gui/panels/glance.c b/src/gui/panels/glance.c
index fb1723a..abbe6a1 100644
--- a/src/gui/panels/glance.c
+++ b/src/gui/panels/glance.c
@@ -626,6 +626,7 @@ static gboolean on_mouse_motion_over_glance(GtkWidget *widget, GdkEventMotion *e
     gdouble diff_y;                         /* Evolution sur les ordonnées */
     GtkAdjustment *hadj;                    /* Gestionnaire du défilement  */
     GtkAdjustment *vadj;                    /* Gestionnaire du défilement  */
+    gdouble value;                          /* Nouvelle valeur bornée      */
 
     if (panel->view != NULL && event->state & GDK_BUTTON1_MASK && panel->valid)
     {
@@ -635,8 +636,11 @@ static gboolean on_mouse_motion_over_glance(GtkWidget *widget, GdkEventMotion *e
         hadj = gtk_scrolled_window_get_hadjustment(panel->support);
         vadj = gtk_scrolled_window_get_vadjustment(panel->support);
 
-        gtk_adjustment_set_value(hadj, panel->ref_h + diff_x);
-        gtk_adjustment_set_value(vadj, panel->ref_v + diff_y);
+        value = CLAMP(panel->ref_h + diff_x, hadj->lower, hadj->upper - hadj->page_size);
+        gtk_adjustment_set_value(hadj, value);
+
+        value = CLAMP(panel->ref_v + diff_y, vadj->lower, vadj->upper - vadj->page_size);
+        gtk_adjustment_set_value(vadj, value);
 
     }