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visualizer-view: dynamically toggle scrollbar visibility

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Generally we want this thing hidden, so only show it if we have
zoomed in enough to cause it to be useful.

We need to also find a way for the container to be able to
handle the change in size request and adjust the GtkPaned
to be non-ugly.
This commit is contained in:
Christian Hergert
2016-09-29 17:49:53 -07:00
parent 0766bd6b93
commit 75332678a6
1 changed files with 13 additions and 0 deletions
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13
lib/sp-visualizer-view.c
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@ -33,6 +33,7 @@ typedef struct
SpVisualizerList *list;
GtkAdjustment *scroll_adjustment;
GtkScrollbar *scrollbar;
SpVisualizerTicks *ticks;
} SpVisualizerViewPrivate;
@ -142,6 +143,17 @@ sp_visualizer_view_notify_zoom (SpVisualizerView *self,
sp_visualizer_view_set_time_range (self, begin_time, end_time);
gtk_adjustment_set_page_size (priv->scroll_adjustment, end_time - begin_time);
if (priv->reader != NULL)
{
gint64 real_range;
gboolean visible;
real_range = sp_capture_reader_get_end_time (priv->reader)
- sp_capture_reader_get_start_time (priv->reader);
visible = (gtk_adjustment_get_page_size (priv->scroll_adjustment) < real_range);
gtk_widget_set_visible (GTK_WIDGET (priv->scrollbar), visible);
}
}
static void
@ -247,6 +259,7 @@ sp_visualizer_view_class_init (SpVisualizerViewClass *klass)
gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/sysprof/ui/sp-visualizer-view.ui");
gtk_widget_class_bind_template_child_private (widget_class, SpVisualizerView, list);
gtk_widget_class_bind_template_child_private (widget_class, SpVisualizerView, scroll_adjustment);
gtk_widget_class_bind_template_child_private (widget_class, SpVisualizerView, scrollbar);
gtk_widget_class_bind_template_child_private (widget_class, SpVisualizerView, ticks);
gtk_widget_class_set_css_name (widget_class, "visualizers");