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do not calculate the histogram if the histogram dock is invisible. 

2005-09-28  Sven Neumann  <sven@gimp.org>

	* app/widgets/gimphistogrameditor.[ch]: do not calculate the
	histogram if the histogram dock is invisible.
This commit is contained in:
Sven Neumann 2005-09-28 00:31:46 +00:00 committed by Sven Neumann
parent f478549bf1
commit 4bb311bbd7
3 changed files with 43 additions and 13 deletions
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5
ChangeLog
View File

@ -1,3 +1,8 @@
2005-09-28 Sven Neumann <sven@gimp.org>
* app/widgets/gimphistogrameditor.[ch]: do not calculate the
histogram if the histogram dock is invisible.
2005-09-28 Sven Neumann <sven@gimp.org>
* app/paint-funcs/paint-funcs-generic.h (swap_pixels): replaced

50
app/widgets/gimphistogrameditor.c
View File

@ -63,6 +63,8 @@ static void gimp_histogram_editor_menu_update (GimpHistogramEditor *editor);
static void gimp_histogram_editor_name_update (GimpHistogramEditor *editor);
static void gimp_histogram_editor_info_update (GimpHistogramEditor *editor);
static gboolean gimp_histogram_view_expose (GimpHistogramEditor *editor);
static GimpImageEditorClass *parent_class = NULL;
static GimpDockedInterface *parent_docked_iface = NULL;
@ -136,6 +138,7 @@ gimp_histogram_editor_init (GimpHistogramEditor *editor)
editor->drawable = NULL;
editor->histogram = NULL;
editor->valid = FALSE;
editor->idle_id = 0;
editor->box = gimp_histogram_box_new ();
@ -180,6 +183,10 @@ gimp_histogram_editor_init (GimpHistogramEditor *editor)
G_CALLBACK (gimp_histogram_editor_info_update),
editor);
g_signal_connect_swapped (view, "expose-event",
G_CALLBACK (gimp_histogram_view_expose),
editor);
table = gtk_table_new (3, 4, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 2);
gtk_table_set_col_spacing (GTK_TABLE (table), 1, 6);
@ -357,8 +364,8 @@ gimp_histogram_editor_layer_changed (GimpImage *gimage,
}
else if (editor->histogram)
{
gimp_histogram_calculate (editor->histogram, NULL, NULL);
gtk_widget_queue_draw GTK_WIDGET (editor->box);
editor->valid = FALSE;
gtk_widget_queue_draw (GTK_WIDGET (editor->box));
}
gimp_histogram_editor_info_update (editor);
@ -371,10 +378,11 @@ gimp_histogram_editor_update (GimpHistogramEditor *editor)
if (editor->idle_id)
g_source_remove (editor->idle_id);
editor->idle_id = g_idle_add_full (G_PRIORITY_LOW,
(GSourceFunc) gimp_histogram_editor_idle_update,
editor,
(GDestroyNotify) NULL);
editor->idle_id =
g_idle_add_full (G_PRIORITY_LOW,
(GSourceFunc) gimp_histogram_editor_idle_update,
editor,
NULL);
}
static gboolean
@ -382,13 +390,12 @@ gimp_histogram_editor_idle_update (GimpHistogramEditor *editor)
{
editor->idle_id = 0;
if (editor->drawable && editor->histogram)
{
gimp_drawable_calculate_histogram (editor->drawable, editor->histogram);
/* Mark the histogram as invalid and queue a redraw.
* We will then recalculate the histogram when the view is exposed.
*/
gtk_widget_queue_draw GTK_WIDGET (editor->box);
gimp_histogram_editor_info_update (editor);
}
editor->valid = FALSE;
gtk_widget_queue_draw (GTK_WIDGET (editor->box));
return FALSE;
}
@ -455,7 +462,6 @@ gimp_histogram_editor_name_update (GimpHistogramEditor *editor)
gimp_editor_set_name (GIMP_EDITOR (editor), name);
}
static void
gimp_histogram_editor_info_update (GimpHistogramEditor *editor)
{
@ -507,3 +513,21 @@ gimp_histogram_editor_info_update (GimpHistogramEditor *editor)
gtk_label_set_text (GTK_LABEL (editor->labels[i]), NULL);
}
}
static gboolean
gimp_histogram_view_expose (GimpHistogramEditor *editor)
{
if (! editor->valid && editor->histogram)
{
if (editor->drawable)
gimp_drawable_calculate_histogram (editor->drawable, editor->histogram);
else
gimp_histogram_calculate (editor->histogram, NULL, NULL);
editor->valid = TRUE;
gimp_histogram_editor_info_update (editor);
}
return FALSE;
}

1
app/widgets/gimphistogrameditor.h
View File

@ -41,6 +41,7 @@ struct _GimpHistogramEditor
GimpHistogram *histogram;
guint idle_id;
gboolean valid;
GtkWidget *menu;
GtkWidget *box;