static void gimp_histogram_editor_frozen_update (GimpHistogramEditor *editor, const GParamSpec *pspec) { GimpHistogramView *view = GIMP_HISTOGRAM_BOX (editor->box)->view; if (gimp_viewable_preview_is_frozen (GIMP_VIEWABLE (editor->drawable))) { /* Only do the background histogram if the histogram is visible. * This is a workaround for the fact that recalculating the * histogram is expensive and that it is only validated when it * is shown. So don't slow down painting by doing something that * is not even seen by the user. */ if (! editor->bg_histogram && GTK_WIDGET_DRAWABLE (editor)) { if (gimp_histogram_editor_validate (editor)) editor->bg_histogram = gimp_histogram_duplicate (editor->histogram); gimp_histogram_view_set_background (view, editor->bg_histogram); } } else if (editor->bg_histogram) { gimp_histogram_unref (editor->bg_histogram); editor->bg_histogram = NULL; gimp_histogram_view_set_background (view, NULL); } }
static void gimp_histogram_editor_set_image (GimpImageEditor *image_editor, GimpImage *image) { GimpHistogramEditor *editor = GIMP_HISTOGRAM_EDITOR (image_editor); GimpHistogramView *view = GIMP_HISTOGRAM_BOX (editor->box)->view; if (image_editor->image) { if (editor->idle_id) { g_source_remove (editor->idle_id); editor->idle_id = 0; } g_signal_handlers_disconnect_by_func (image_editor->image, gimp_histogram_editor_layer_changed, editor); g_signal_handlers_disconnect_by_func (image_editor->image, gimp_histogram_editor_menu_update, editor); if (editor->histogram) { gimp_histogram_unref (editor->histogram); editor->histogram = NULL; gimp_histogram_view_set_histogram (view, NULL); } if (editor->bg_histogram) { gimp_histogram_unref (editor->bg_histogram); editor->bg_histogram = NULL; gimp_histogram_view_set_background (view, NULL); } } GIMP_IMAGE_EDITOR_CLASS (parent_class)->set_image (image_editor, image); if (image) { editor->histogram = gimp_histogram_new (); gimp_histogram_view_set_histogram (view, editor->histogram); g_signal_connect_object (image, "mode-changed", G_CALLBACK (gimp_histogram_editor_menu_update), editor, G_CONNECT_SWAPPED); g_signal_connect_object (image, "active-layer-changed", G_CALLBACK (gimp_histogram_editor_layer_changed), editor, 0); g_signal_connect_object (image, "mask-changed", G_CALLBACK (gimp_histogram_editor_update), editor, G_CONNECT_SWAPPED); } gimp_histogram_editor_layer_changed (image, editor); }
static void gimp_threshold_tool_dialog (GimpImageMapTool *image_map_tool) { GimpThresholdTool *t_tool = GIMP_THRESHOLD_TOOL (image_map_tool); GimpToolOptions *tool_options = GIMP_TOOL_GET_OPTIONS (image_map_tool); GimpThresholdConfig *config = t_tool->config; GtkWidget *main_vbox; GtkWidget *hbox; GtkWidget *menu; GtkWidget *box; GtkWidget *button; gint n_bins; main_vbox = gimp_image_map_tool_dialog_get_vbox (image_map_tool); hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6); gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0); gtk_widget_show (hbox); menu = gimp_prop_enum_icon_box_new (G_OBJECT (tool_options), "histogram-scale", "gimp-histogram", 0, 0); gtk_box_pack_end (GTK_BOX (hbox), menu, FALSE, FALSE, 0); gtk_widget_show (menu); box = gimp_histogram_box_new (); gtk_box_pack_start (GTK_BOX (main_vbox), box, TRUE, TRUE, 0); gtk_widget_show (box); t_tool->histogram_box = GIMP_HISTOGRAM_BOX (box); n_bins = gimp_histogram_n_bins (t_tool->histogram); gimp_histogram_view_set_range (t_tool->histogram_box->view, config->low * (n_bins - 0.0001), config->high * (n_bins - 0.0001)); g_signal_connect (t_tool->histogram_box->view, "range-changed", G_CALLBACK (gimp_threshold_tool_histogram_range), t_tool); gimp_histogram_options_connect_view (GIMP_HISTOGRAM_OPTIONS (tool_options), t_tool->histogram_box->view); hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6); gtk_box_pack_start (GTK_BOX (main_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); }
static void gimp_histogram_editor_info_update (GimpHistogramEditor *editor) { GimpHistogramView *view = GIMP_HISTOGRAM_BOX (editor->box)->view; GimpHistogram *hist = editor->histogram; if (hist) { gint n_bins; gdouble pixels; gdouble count; gchar text[12]; n_bins = gimp_histogram_n_bins (hist); pixels = gimp_histogram_get_count (hist, view->channel, 0, n_bins - 1); count = gimp_histogram_get_count (hist, view->channel, view->start, view->end); g_snprintf (text, sizeof (text), "%.3f", gimp_histogram_get_mean (hist, view->channel, view->start, view->end)); gtk_label_set_text (GTK_LABEL (editor->labels[0]), text); g_snprintf (text, sizeof (text), "%.3f", gimp_histogram_get_std_dev (hist, view->channel, view->start, view->end)); gtk_label_set_text (GTK_LABEL (editor->labels[1]), text); g_snprintf (text, sizeof (text), "%.3f", gimp_histogram_get_median (hist, view->channel, view->start, view->end)); gtk_label_set_text (GTK_LABEL (editor->labels[2]), text); g_snprintf (text, sizeof (text), "%d", (gint) pixels); gtk_label_set_text (GTK_LABEL (editor->labels[3]), text); g_snprintf (text, sizeof (text), "%d", (gint) count); gtk_label_set_text (GTK_LABEL (editor->labels[4]), text); g_snprintf (text, sizeof (text), "%.1f", (pixels > 0 ? (100.0 * count / pixels) : 0.0)); gtk_label_set_text (GTK_LABEL (editor->labels[5]), text); } else { gint i; for (i = 0; i < 6; i++) gtk_label_set_text (GTK_LABEL (editor->labels[i]), NULL); } }
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 gimp_histogram_editor_set_aux_info (GimpDocked *docked, GList *aux_info) { GimpHistogramEditor *editor = GIMP_HISTOGRAM_EDITOR (docked); GimpHistogramView *view = GIMP_HISTOGRAM_BOX (editor->box)->view; parent_docked_iface->set_aux_info (docked, aux_info); gimp_session_info_aux_set_props (G_OBJECT (view), aux_info, "histogram-channel", "histogram-scale", NULL); }
static GList * gimp_histogram_editor_get_aux_info (GimpDocked *docked) { GimpHistogramEditor *editor = GIMP_HISTOGRAM_EDITOR (docked); GimpHistogramView *view = GIMP_HISTOGRAM_BOX (editor->box)->view; GList *aux_info; aux_info = parent_docked_iface->get_aux_info (docked); return g_list_concat (aux_info, gimp_session_info_aux_new_from_props (G_OBJECT (view), "histogram-channel", "histogram-scale", NULL)); }
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); }
static void gimp_histogram_editor_init (GimpHistogramEditor *editor) { GimpHistogramView *view; GtkWidget *hbox; GtkWidget *label; GtkWidget *menu; GtkWidget *table; gint i; const gchar *gimp_histogram_editor_labels[] = { N_("Mean:"), N_("Std dev:"), N_("Median:"), N_("Pixels:"), N_("Count:"), N_("Percentile:") }; editor->drawable = NULL; editor->histogram = NULL; editor->bg_histogram = NULL; editor->valid = FALSE; editor->idle_id = 0; editor->box = gimp_histogram_box_new (); gimp_editor_set_show_name (GIMP_EDITOR (editor), TRUE); view = GIMP_HISTOGRAM_BOX (editor->box)->view; hbox = gtk_hbox_new (FALSE, 6); gtk_box_pack_start (GTK_BOX (editor), hbox, FALSE, FALSE, 0); gtk_widget_show (hbox); label = gtk_label_new (_("Channel:")); gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0); gtk_widget_show (label); editor->menu = menu = gimp_prop_enum_combo_box_new (G_OBJECT (view), "histogram-channel", 0, 0); gimp_enum_combo_box_set_stock_prefix (GIMP_ENUM_COMBO_BOX (menu), "gimp-channel"); gimp_int_combo_box_set_sensitivity (GIMP_INT_COMBO_BOX (editor->menu), gimp_histogram_menu_sensitivity, editor, NULL); gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (editor->menu), view->channel); gtk_box_pack_start (GTK_BOX (hbox), menu, FALSE, FALSE, 0); gtk_widget_show (menu); menu = gimp_prop_enum_stock_box_new (G_OBJECT (view), "histogram-scale", "gimp-histogram", 0, 0); gtk_box_pack_end (GTK_BOX (hbox), menu, FALSE, FALSE, 0); gtk_widget_show (menu); gtk_box_pack_start (GTK_BOX (editor), editor->box, TRUE, TRUE, 0); gtk_widget_show (GTK_WIDGET (editor->box)); g_signal_connect_swapped (view, "range-changed", G_CALLBACK (gimp_histogram_editor_info_update), editor); g_signal_connect_swapped (view, "notify::histogram-channel", 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); gtk_box_pack_start (GTK_BOX (editor), table, FALSE, FALSE, 0); gtk_widget_show (table); for (i = 0; i < 6; i++) { gint x = (i / 3) * 2; gint y = (i % 3); label = gtk_label_new (gettext (gimp_histogram_editor_labels[i])); gimp_label_set_attributes (GTK_LABEL (label), PANGO_ATTR_WEIGHT, PANGO_WEIGHT_BOLD, PANGO_ATTR_SCALE, PANGO_SCALE_SMALL, -1); gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5); gtk_table_attach (GTK_TABLE (table), label, x, x + 1, y, y + 1, GTK_FILL | GTK_EXPAND, GTK_FILL, 2, 2); gtk_widget_show (label); editor->labels[i] = label = g_object_new (GTK_TYPE_LABEL, "xalign", 0.0, "yalign", 0.5, "width-chars", i > 2 ? 9 : 5, NULL); gimp_label_set_attributes (GTK_LABEL (editor->labels[i]), PANGO_ATTR_SCALE, PANGO_SCALE_SMALL, -1); gtk_table_attach (GTK_TABLE (table), label, x + 1, x + 2, y, y + 1, GTK_FILL, GTK_FILL, 2, 2); gtk_widget_show (label); } }
static void gimp_histogram_editor_layer_changed (GimpImage *image, GimpHistogramEditor *editor) { if (editor->drawable) { if (editor->bg_histogram) { GimpHistogramView *view = GIMP_HISTOGRAM_BOX (editor->box)->view; gimp_histogram_unref (editor->bg_histogram); editor->bg_histogram = NULL; gimp_histogram_view_set_background (view, NULL); } g_signal_handlers_disconnect_by_func (editor->drawable, gimp_histogram_editor_name_update, editor); g_signal_handlers_disconnect_by_func (editor->drawable, gimp_histogram_editor_menu_update, editor); g_signal_handlers_disconnect_by_func (editor->drawable, gimp_histogram_editor_update, editor); g_signal_handlers_disconnect_by_func (editor->drawable, gimp_histogram_editor_frozen_update, editor); editor->drawable = NULL; } if (image) editor->drawable = (GimpDrawable *) gimp_image_get_active_layer (image); gimp_histogram_editor_menu_update (editor); if (editor->drawable) { g_signal_connect_object (editor->drawable, "notify::frozen", G_CALLBACK (gimp_histogram_editor_frozen_update), editor, G_CONNECT_SWAPPED); g_signal_connect_object (editor->drawable, "update", G_CALLBACK (gimp_histogram_editor_update), editor, G_CONNECT_SWAPPED); g_signal_connect_object (editor->drawable, "alpha-changed", G_CALLBACK (gimp_histogram_editor_menu_update), editor, G_CONNECT_SWAPPED); g_signal_connect_object (editor->drawable, "name-changed", G_CALLBACK (gimp_histogram_editor_name_update), editor, G_CONNECT_SWAPPED); gimp_histogram_editor_update (editor); } else if (editor->histogram) { editor->valid = FALSE; gtk_widget_queue_draw (GTK_WIDGET (editor->box)); } gimp_histogram_editor_info_update (editor); gimp_histogram_editor_name_update (editor); }