void
gimp_histogram_view_set_background (GimpHistogramView *view,
GimpHistogram *histogram)
{
g_return_if_fail (GIMP_IS_HISTOGRAM_VIEW (view));
#if 0
g_return_if_fail (histogram == NULL ||
view->histogram == NULL ||
gimp_histogram_n_channels (view->histogram) ==
gimp_histogram_n_channels (histogram));
#endif
if (view->bg_histogram != histogram)
{
if (view->bg_histogram)
gimp_histogram_unref (view->bg_histogram);
view->bg_histogram = histogram;
if (histogram)
{
gimp_histogram_ref (histogram);
if (view->channel >= gimp_histogram_n_channels (histogram))
gimp_histogram_view_set_channel (view, GIMP_HISTOGRAM_VALUE);
}
}
gtk_widget_queue_draw (GTK_WIDGET (view));
}
void
gimp_histogram_box_set_channel (GimpHistogramBox *box,
GimpHistogramChannel channel)
{
g_return_if_fail (GIMP_IS_HISTOGRAM_BOX (box));
if (box->view)
gimp_histogram_view_set_channel (box->view, channel);
}
static void
gimp_histogram_editor_menu_update (GimpHistogramEditor *editor)
{
GimpHistogramView *view = GIMP_HISTOGRAM_BOX (editor->box)->view;
gtk_widget_queue_draw (editor->menu);
if (! gimp_histogram_editor_channel_valid (editor, view->channel))
{
gimp_histogram_view_set_channel (view, GIMP_HISTOGRAM_VALUE);
}
}
static void
levels_channel_callback (GtkWidget *widget,
GimpLevelsTool *tool)
{
gint value;
if (gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget), &value))
{
tool->channel = value;
gimp_histogram_view_set_channel (GIMP_HISTOGRAM_VIEW (tool->hist_view),
tool->channel);
/* FIXME: hack */
if (! tool->color)
tool->channel = (tool->channel == GIMP_HISTOGRAM_ALPHA) ? 1 : 0;
levels_update (tool, ALL);
}
}
static void
gimp_threshold_tool_config_notify (GimpFilterTool *filter_tool,
GimpConfig *config,
const GParamSpec *pspec)
{
GimpThresholdTool *t_tool = GIMP_THRESHOLD_TOOL (filter_tool);
GIMP_FILTER_TOOL_CLASS (parent_class)->config_notify (filter_tool,
config, pspec);
if (! t_tool->histogram_box)
return;
if (! strcmp (pspec->name, "channel"))
{
GimpHistogramChannel channel;
g_object_get (config,
"channel", &channel,
NULL);
gimp_histogram_view_set_channel (t_tool->histogram_box->view,
channel);
}
else if (! strcmp (pspec->name, "low") ||
! strcmp (pspec->name, "high"))
{
gdouble low;
gdouble high;
gint n_bins;
g_object_get (config,
"low", &low,
"high", &high,
NULL);
n_bins = gimp_histogram_n_bins (t_tool->histogram);
gimp_histogram_view_set_range (t_tool->histogram_box->view,
low * (n_bins - 0.0001),
high * (n_bins - 0.0001));
}
}
static void
gimp_threshold_tool_dialog (GimpFilterTool *filter_tool)
{
GimpThresholdTool *t_tool = GIMP_THRESHOLD_TOOL (filter_tool);
GimpToolOptions *tool_options = GIMP_TOOL_GET_OPTIONS (filter_tool);
GtkWidget *main_vbox;
GtkWidget *main_frame;
GtkWidget *frame_vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *hbox2;
GtkWidget *box;
GtkWidget *button;
GimpHistogramChannel channel;
main_vbox = gimp_filter_tool_dialog_get_vbox (filter_tool);
main_frame = gimp_frame_new (NULL);
gtk_box_pack_start (GTK_BOX (main_vbox), main_frame, TRUE, TRUE, 0);
gtk_widget_show (main_frame);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_frame_set_label_widget (GTK_FRAME (main_frame), hbox);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("Cha_nnel:"));
gimp_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_WEIGHT, PANGO_WEIGHT_BOLD,
-1);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
t_tool->channel_menu = gimp_prop_enum_combo_box_new (filter_tool->config,
"channel", -1, -1);
gimp_enum_combo_box_set_icon_prefix (GIMP_ENUM_COMBO_BOX (t_tool->channel_menu),
"gimp-channel");
gimp_int_combo_box_set_sensitivity (GIMP_INT_COMBO_BOX (t_tool->channel_menu),
gimp_threshold_tool_channel_sensitive,
filter_tool, NULL);
gtk_box_pack_start (GTK_BOX (hbox), t_tool->channel_menu, FALSE, FALSE, 0);
gtk_widget_show (t_tool->channel_menu);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), t_tool->channel_menu);
hbox2 = gimp_prop_enum_icon_box_new (G_OBJECT (tool_options),
"histogram-scale", "gimp-histogram",
0, 0);
gtk_box_pack_end (GTK_BOX (hbox), hbox2, FALSE, FALSE, 0);
gtk_widget_show (hbox2);
frame_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
gtk_container_add (GTK_CONTAINER (main_frame), frame_vbox);
gtk_widget_show (frame_vbox);
box = gimp_histogram_box_new ();
gtk_box_pack_start (GTK_BOX (frame_vbox), box, TRUE, TRUE, 0);
gtk_widget_show (box);
t_tool->histogram_box = GIMP_HISTOGRAM_BOX (box);
g_object_get (filter_tool->config,
"channel", &channel,
NULL);
gimp_histogram_view_set_channel (t_tool->histogram_box->view, channel);
g_signal_connect (t_tool->histogram_box->view, "range-changed",
G_CALLBACK (gimp_threshold_tool_histogram_range),
t_tool);
g_object_bind_property (G_OBJECT (tool_options), "histogram-scale",
G_OBJECT (t_tool->histogram_box->view), "histogram-scale",
G_BINDING_SYNC_CREATE |
G_BINDING_BIDIRECTIONAL);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (frame_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
button = gtk_button_new_with_mnemonic (_("_Auto"));
gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gimp_help_set_help_data (button, _("Automatically adjust to optimal "
"binarization threshold"), NULL);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (gimp_threshold_tool_auto_clicked),
t_tool);
}
