2 Copyright (C) 2000-2007 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include "fix_carbon.h"
27 #include <glib/gstdio.h>
29 #include <gtkmm/stock.h>
30 #include <gtkmm/settings.h>
32 #include "gtkmm2ext/gtk_ui.h"
33 #include "gtkmm2ext/cell_renderer_color_selector.h"
34 #include "gtkmm2ext/utils.h"
36 #include "pbd/file_utils.h"
37 #include "pbd/compose.h"
39 #include "ardour/filesystem_paths.h"
41 #include "canvas/container.h"
42 #include "canvas/rectangle.h"
43 #include "canvas/scroll_group.h"
44 #include "canvas/wave_view.h"
46 #include "ardour_button.h"
47 #include "ardour_dialog.h"
48 #include "theme_manager.h"
49 #include "rgb_macros.h"
50 #include "ardour_ui.h"
51 #include "global_signals.h"
59 using namespace ARDOUR;
60 using namespace ARDOUR_UI_UTILS;
62 namespace ARDOUR_UI_UTILS {
63 sigc::signal<void> ColorsChanged;
66 ThemeManager::ThemeManager()
67 : dark_button (_("Dark Theme"))
68 , light_button (_("Light Theme"))
69 , reset_button (_("Restore Defaults"))
70 , flat_buttons (_("Draw \"flat\" buttons"))
71 , blink_rec_button (_("Blink Rec-Arm buttons"))
72 , region_color_button (_("Color regions using their track's color"))
73 , show_clipping_button (_("Show waveform clipping"))
74 , waveform_gradient_depth (0, 1.0, 0.05)
75 , waveform_gradient_depth_label (_("Waveforms color gradient depth"))
76 , timeline_item_gradient_depth (0, 1.0, 0.05)
77 , timeline_item_gradient_depth_label (_("Timeline item gradient depth"))
78 , all_dialogs (_("All floating windows are dialogs"))
79 , transients_follow_front (_("Transient windows follow front window."))
80 , icon_set_label (_("Icon Set"))
81 , palette_viewport (*palette_scroller.get_hadjustment(), *palette_scroller.get_vadjustment())
85 /* Now the alias list */
87 alias_list = TreeStore::create (alias_columns);
88 alias_display.set_model (alias_list);
89 alias_display.append_column (_("Object"), alias_columns.name);
91 Gtkmm2ext::CellRendererColorSelector* color_renderer = manage (new Gtkmm2ext::CellRendererColorSelector);
92 TreeViewColumn* color_column = manage (new TreeViewColumn (_("Color"), *color_renderer));
93 color_column->add_attribute (color_renderer->property_color(), alias_columns.color);
94 alias_display.append_column (*color_column);
96 alias_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
97 alias_display.get_column (0)->set_expand (true);
98 alias_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
99 alias_display.get_column (1)->set_expand (false);
100 alias_display.set_reorderable (false);
101 alias_display.get_selection()->set_mode (SELECTION_NONE);
102 alias_display.set_headers_visible (true);
104 alias_display.signal_button_press_event().connect (sigc::mem_fun (*this, &ThemeManager::alias_button_press_event), false);
106 alias_scroller.add (alias_display);
108 /* various buttons */
110 RadioButton::Group group = dark_button.get_group();
111 light_button.set_group(group);
112 theme_selection_hbox.set_homogeneous(false);
113 theme_selection_hbox.pack_start (dark_button);
114 theme_selection_hbox.pack_start (light_button);
116 set_homogeneous (false);
117 #if 0 // disable light/dark theme choice. until the 'light theme gets some attention.
118 pack_start (theme_selection_hbox, PACK_SHRINK);
120 pack_start (reset_button, PACK_SHRINK);
122 pack_start (all_dialogs, PACK_SHRINK);
123 pack_start (transients_follow_front, PACK_SHRINK);
125 pack_start (flat_buttons, PACK_SHRINK);
126 pack_start (blink_rec_button, PACK_SHRINK);
127 pack_start (region_color_button, PACK_SHRINK);
128 pack_start (show_clipping_button, PACK_SHRINK);
132 vector<string> icon_sets = ::get_icon_sets ();
134 if (icon_sets.size() > 1) {
135 Gtkmm2ext::set_popdown_strings (icon_set_dropdown, icon_sets);
136 icon_set_dropdown.set_active_text (ARDOUR_UI::config()->get_icon_set());
138 hbox = Gtk::manage (new Gtk::HBox());
139 hbox->set_spacing (6);
140 hbox->pack_start (icon_set_label, false, false);
141 hbox->pack_start (icon_set_dropdown, true, true);
142 pack_start (*hbox, PACK_SHRINK);
146 hbox = Gtk::manage (new Gtk::HBox());
147 hbox->set_spacing (6);
148 hbox->pack_start (waveform_gradient_depth, true, true);
149 hbox->pack_start (waveform_gradient_depth_label, false, false);
150 pack_start (*hbox, PACK_SHRINK);
152 hbox = Gtk::manage (new Gtk::HBox());
153 hbox->set_spacing (6);
154 hbox->pack_start (timeline_item_gradient_depth, true, true);
155 hbox->pack_start (timeline_item_gradient_depth_label, false, false);
156 pack_start (*hbox, PACK_SHRINK);
158 palette_group = initialize_palette_canvas (*palette_viewport.canvas());
159 palette_viewport.signal_size_allocate().connect (sigc::bind (sigc::mem_fun (*this, &ThemeManager::palette_canvas_allocated), palette_group, palette_viewport.canvas(),
160 sigc::mem_fun (*this, &ThemeManager::palette_event)));
161 palette_scroller.add (palette_viewport);
163 modifier_scroller.add (modifier_vbox);
165 notebook.append_page (alias_scroller, _("Items"));
166 notebook.append_page (palette_scroller, _("Palette"));
167 notebook.append_page (modifier_scroller, _("Transparency"));
169 pack_start (notebook);
173 waveform_gradient_depth.set_update_policy (Gtk::UPDATE_DELAYED);
174 timeline_item_gradient_depth.set_update_policy (Gtk::UPDATE_DELAYED);
176 color_dialog.get_colorsel()->set_has_opacity_control (true);
177 color_dialog.get_colorsel()->set_has_palette (true);
181 color_dialog.get_ok_button()->signal_clicked().connect (sigc::bind (sigc::mem_fun (color_dialog, &Gtk::Dialog::response), RESPONSE_ACCEPT));
182 color_dialog.get_cancel_button()->signal_clicked().connect (sigc::bind (sigc::mem_fun (color_dialog, &Gtk::Dialog::response), RESPONSE_CANCEL));
183 dark_button.signal_toggled().connect (sigc::mem_fun (*this, &ThemeManager::on_dark_theme_button_toggled));
184 light_button.signal_toggled().connect (sigc::mem_fun (*this, &ThemeManager::on_light_theme_button_toggled));
185 reset_button.signal_clicked().connect (sigc::mem_fun (*this, &ThemeManager::reset_canvas_colors));
186 flat_buttons.signal_toggled().connect (sigc::mem_fun (*this, &ThemeManager::on_flat_buttons_toggled));
187 blink_rec_button.signal_toggled().connect (sigc::mem_fun (*this, &ThemeManager::on_blink_rec_arm_toggled));
188 region_color_button.signal_toggled().connect (sigc::mem_fun (*this, &ThemeManager::on_region_color_toggled));
189 show_clipping_button.signal_toggled().connect (sigc::mem_fun (*this, &ThemeManager::on_show_clip_toggled));
190 waveform_gradient_depth.signal_value_changed().connect (sigc::mem_fun (*this, &ThemeManager::on_waveform_gradient_depth_change));
191 timeline_item_gradient_depth.signal_value_changed().connect (sigc::mem_fun (*this, &ThemeManager::on_timeline_item_gradient_depth_change));
192 all_dialogs.signal_toggled().connect (sigc::mem_fun (*this, &ThemeManager::on_all_dialogs_toggled));
193 transients_follow_front.signal_toggled().connect (sigc::mem_fun (*this, &ThemeManager::on_transients_follow_front_toggled));
194 icon_set_dropdown.signal_changed().connect (sigc::mem_fun (*this, &ThemeManager::on_icon_set_changed));
196 Gtkmm2ext::UI::instance()->set_tip (all_dialogs,
197 string_compose (_("Mark all floating windows to be type \"Dialog\" rather than using \"Utility\" for some.\n"
198 "This may help with some window managers. This requires a restart of %1 to take effect"),
200 Gtkmm2ext::UI::instance()->set_tip (transients_follow_front,
201 string_compose (_("Make transient windows follow the front window when toggling between the editor and mixer.\n"
202 "This requires a restart of %1 to take effect"), PROGRAM_NAME));
204 set_size_request (-1, 400);
205 /* no need to call setup_palette() here, it will be done when its size is allocated */
209 ARDOUR_UI_UTILS::ColorsChanged.connect (sigc::mem_fun (*this, &ThemeManager::colors_changed));
212 ThemeManager::~ThemeManager()
217 ThemeManager::setup_modifiers ()
219 UIConfiguration* uic (ARDOUR_UI::config());
220 UIConfiguration::Modifiers& modifiers (uic->modifiers);
222 Gtk::Label* mod_label;
223 Gtk::HScale* mod_scale;
225 Gtkmm2ext::container_clear (modifier_vbox);
227 for (UIConfiguration::Modifiers::const_iterator m = modifiers.begin(); m != modifiers.end(); ++m) {
228 mod_hbox = manage (new HBox);
230 mod_scale = manage (new HScale (0.0, 1.0, 0.01));
231 mod_scale->set_draw_value (false);
232 mod_scale->set_value (m->second.a());
233 mod_scale->set_update_policy (Gtk::UPDATE_DISCONTINUOUS);
234 mod_scale->signal_value_changed().connect (sigc::bind (sigc::mem_fun (*this, &ThemeManager::modifier_edited), mod_scale, m->first));
236 mod_label = manage (new Label (m->first));
237 mod_label->set_alignment (1.0, 0.5);
238 mod_label->set_size_request (150, -1); /* 150 pixels should be enough for anyone */
240 mod_hbox->pack_start (*mod_label, false, true, 12);
241 mod_hbox->pack_start (*mod_scale, true, true);
243 modifier_vbox.pack_start (*mod_hbox, false, false);
246 modifier_vbox.show_all ();
251 ThemeManager::modifier_edited (Gtk::Range* range, string name)
253 using namespace ArdourCanvas;
255 double alpha = range->get_value();
256 SVAModifier svam (SVAModifier::Assign, -1.0, -1.0, alpha);
257 ARDOUR_UI::config()->set_modifier (name, svam);
261 ThemeManager::colors_changed ()
269 ThemeManager::save (string /*path*/)
275 ThemeManager::on_flat_buttons_toggled ()
277 ARDOUR_UI::config()->set_flat_buttons (flat_buttons.get_active());
278 ArdourButton::set_flat_buttons (flat_buttons.get_active());
280 gtk_rc_reset_styles (gtk_settings_get_default());
284 ThemeManager::on_blink_rec_arm_toggled ()
286 ARDOUR_UI::config()->set_blink_rec_arm (blink_rec_button.get_active());
287 ARDOUR::Config->ParameterChanged("blink-rec-arm");
291 ThemeManager::on_region_color_toggled ()
293 ARDOUR_UI::config()->set_color_regions_using_track_color (region_color_button.get_active());
297 ThemeManager::on_show_clip_toggled ()
299 ARDOUR_UI::config()->set_show_waveform_clipping (show_clipping_button.get_active());
300 // "show-waveform-clipping" was a session config key
301 ArdourCanvas::WaveView::set_global_show_waveform_clipping (ARDOUR_UI::config()->get_show_waveform_clipping());
305 ThemeManager::on_all_dialogs_toggled ()
307 ARDOUR_UI::config()->set_all_floating_windows_are_dialogs (all_dialogs.get_active());
311 ThemeManager::on_transients_follow_front_toggled ()
313 ARDOUR_UI::config()->set_transients_follow_front (transients_follow_front.get_active());
317 ThemeManager::on_waveform_gradient_depth_change ()
319 double v = waveform_gradient_depth.get_value();
321 ARDOUR_UI::config()->set_waveform_gradient_depth (v);
322 ArdourCanvas::WaveView::set_global_gradient_depth (v);
326 ThemeManager::on_timeline_item_gradient_depth_change ()
328 double v = timeline_item_gradient_depth.get_value();
330 ARDOUR_UI::config()->set_timeline_item_gradient_depth (v);
334 ThemeManager::on_icon_set_changed ()
336 string new_set = icon_set_dropdown.get_active_text();
337 ARDOUR_UI::config()->set_icon_set (new_set);
341 ThemeManager::on_dark_theme_button_toggled()
343 if (!dark_button.get_active()) return;
345 UIConfiguration* uic (ARDOUR_UI::config());
347 uic->set_color_file("dark");
351 ThemeManager::on_light_theme_button_toggled()
353 if (!light_button.get_active()) return;
355 UIConfiguration* uic (ARDOUR_UI::config());
357 uic->set_color_file("light");
361 ThemeManager::set_ui_to_state()
363 /* there is no way these values can change individually
364 * by themselves (w/o user-interaction)
365 * hence a common combined update function suffices
368 if (ARDOUR_UI::config()->get_color_file() == "light") {
369 light_button.set_active(true);
371 dark_button.set_active(true);
374 /* there is no need to block signal handlers, here,
375 * all elements check if the value has changed and ignore NOOPs
377 all_dialogs.set_active (ARDOUR_UI::config()->get_all_floating_windows_are_dialogs());
378 transients_follow_front.set_active (ARDOUR_UI::config()->get_transients_follow_front());
379 flat_buttons.set_active (ARDOUR_UI::config()->get_flat_buttons());
380 blink_rec_button.set_active (ARDOUR_UI::config()->get_blink_rec_arm());
381 region_color_button.set_active (ARDOUR_UI::config()->get_color_regions_using_track_color());
382 show_clipping_button.set_active (ARDOUR_UI::config()->get_show_waveform_clipping());
383 waveform_gradient_depth.set_value(ARDOUR_UI::config()->get_waveform_gradient_depth());
384 timeline_item_gradient_depth.set_value(ARDOUR_UI::config()->get_timeline_item_gradient_depth());
388 ThemeManager::reset_canvas_colors()
394 basename += ARDOUR_UI::config()->get_color_file();
395 basename += ".colors";
397 if (find_file (ardour_config_search_path(), basename, cfile)) {
398 string backup = cfile + string (X_(".old"));
399 g_rename (cfile.c_str(), backup.c_str());
400 /* don't really care if it fails */
403 ARDOUR_UI::config()->load_defaults();
404 ARDOUR_UI::config()->save_state ();
408 ArdourCanvas::Container*
409 ThemeManager::initialize_palette_canvas (ArdourCanvas::Canvas& canvas)
411 using namespace ArdourCanvas;
413 /* hide background */
414 canvas.set_background_color (rgba_to_color (0.0, 0.0, 1.0, 0.0));
416 /* bi-directional scroll group */
418 ScrollGroup* scroll_group = new ScrollGroup (canvas.root(), ScrollGroup::ScrollSensitivity (ScrollGroup::ScrollsVertically|ScrollGroup::ScrollsHorizontally));
419 canvas.add_scroller (*scroll_group);
421 /* new container to hold everything */
423 return new ArdourCanvas::Container (scroll_group);
427 ThemeManager::palette_canvas_allocated (Gtk::Allocation& alloc, ArdourCanvas::Container* group, ArdourCanvas::Canvas* canvas, sigc::slot<bool,GdkEvent*,std::string> event_handler)
429 build_palette_canvas (*canvas, *group, event_handler);
434 ArdourCanvas::HSV color;
435 NamedColor (string s, ArdourCanvas::HSV c) : name (s), color (c) {}
439 bool operator() (NamedColor const & a, NamedColor const & b) {
440 using namespace ArdourCanvas;
441 const HSV black (0, 0, 0);
442 if (a.color.is_gray() || b.color.is_gray()) {
443 return black.distance (a.color) < black.distance (b.color);
445 return a.color.h < b.color.h;
446 // const HSV red (rgba_to_color (1.0, 0.0, 0.0, 1.0));
447 // return red.distance (a.color) < red.distance (b.color);
454 ThemeManager::build_palette_canvas (ArdourCanvas::Canvas& canvas, ArdourCanvas::Container& group, sigc::slot<bool,GdkEvent*,std::string> event_handler)
456 using namespace ArdourCanvas;
458 /* we want the colors sorted by hue, with their name */
460 UIConfiguration::Colors& colors (ARDOUR_UI::config()->colors);
461 vector<NamedColor> nc;
462 for (UIConfiguration::Colors::const_iterator x = colors.begin(); x != colors.end(); ++x) {
463 nc.push_back (NamedColor (x->first, HSV (x->second)));
466 sort (nc.begin(), nc.end(), sorter);
468 const uint32_t color_limit = nc.size();
469 const double box_size = 20.0;
470 const double width = canvas.width();
471 const double height = canvas.height();
473 uint32_t color_num = 0;
475 /* clear existing rects and delete them */
479 for (uint32_t y = 0; y < height - box_size && color_num < color_limit; y += box_size) {
480 for (uint32_t x = 0; x < width - box_size && color_num < color_limit; x += box_size) {
481 ArdourCanvas::Rectangle* r = new ArdourCanvas::Rectangle (&group, ArdourCanvas::Rect (x, y, x + box_size, y + box_size));
483 string name = nc[color_num++].name;
485 UIConfiguration::Colors::iterator c = colors.find (name);
487 if (c != colors.end()) {
488 Color color = c->second;
489 r->set_fill_color (color);
490 r->set_outline_color (rgba_to_color (0.0, 0.0, 0.0, 1.0));
491 r->set_tooltip (name);
492 r->Event.connect (sigc::bind (event_handler, name));
499 ThemeManager::palette_size_request (Gtk::Requisition* req)
501 uint32_t ncolors = ARDOUR_UI::config()->colors.size();
502 const int box_size = 20;
504 double c = sqrt ((double)ncolors);
505 req->width = (int) floor (c * box_size);
506 req->height = (int) floor (c * box_size);
508 /* add overflow row if necessary */
510 if (fmod (ncolors, c) != 0.0) {
511 req->height += box_size;
516 ThemeManager::setup_palette ()
518 build_palette_canvas (*palette_viewport.canvas(), *palette_group, sigc::mem_fun (*this, &ThemeManager::palette_event));
522 ThemeManager::palette_event (GdkEvent* ev, string name)
525 case GDK_BUTTON_RELEASE:
526 edit_palette_color (name);
535 ThemeManager::edit_palette_color (std::string name)
537 using namespace ArdourCanvas;
539 UIConfiguration* uic (ARDOUR_UI::config());
540 ArdourCanvas::Color c = uic->color (name);
543 color_to_rgba (c, r, g, b, a);
545 gdkcolor.set_rgb_p (r, g, b);
546 color_dialog.get_colorsel()->set_previous_color (gdkcolor);
547 color_dialog.get_colorsel()->set_current_color (gdkcolor);
548 color_dialog.get_colorsel()->set_previous_alpha ((guint16) (a * 65535));
549 color_dialog.get_colorsel()->set_current_alpha ((guint16) (a * 65535));
551 color_dialog_connection.disconnect ();
552 color_dialog_connection = color_dialog.signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ThemeManager::palette_color_response), name));
553 color_dialog.present();
557 ThemeManager::palette_color_response (int result, std::string name)
559 using namespace ArdourCanvas;
561 color_dialog_connection.disconnect ();
563 UIConfiguration* uic (ARDOUR_UI::config());
568 case RESPONSE_ACCEPT:
570 gdkcolor = color_dialog.get_colorsel()->get_current_color();
571 a = color_dialog.get_colorsel()->get_current_alpha() / 65535.0;
572 r = gdkcolor.get_red_p();
573 g = gdkcolor.get_green_p();
574 b = gdkcolor.get_blue_p();
576 uic->set_color (name, rgba_to_color (r, g, b, a));
583 color_dialog.hide ();
587 ThemeManager::alias_palette_event (GdkEvent* ev, string new_alias, string target_name)
590 case GDK_BUTTON_RELEASE:
591 ARDOUR_UI::config()->set_alias (target_name, new_alias);
601 ThemeManager::alias_palette_response (int response, std::string target_name, std::string old_alias)
604 case GTK_RESPONSE_OK:
605 case GTK_RESPONSE_ACCEPT:
606 /* rebuild alias list with new color: inefficient but simple */
610 case GTK_RESPONSE_REJECT:
612 ARDOUR_UI::config()->set_alias (target_name, old_alias);
620 palette_window->hide ();
624 ThemeManager::choose_color_from_palette (string const & name)
626 UIConfiguration* uic (ARDOUR_UI::config());
627 UIConfiguration::ColorAliases::iterator i = uic->color_aliases.find (name);
629 if (i == uic->color_aliases.end()) {
633 delete palette_window;
635 palette_window = new ArdourDialog (_("Color Palette"));
636 palette_window->add_button (Stock::CANCEL, RESPONSE_REJECT); /* using CANCEL causes confusion if dialog is closed via CloseAllDialogs */
637 palette_window->add_button (Stock::OK, RESPONSE_OK);
639 ArdourCanvas::GtkCanvas* canvas = new ArdourCanvas::GtkCanvas ();
640 ArdourCanvas::Container* group = initialize_palette_canvas (*canvas);
642 canvas->signal_size_request().connect (sigc::mem_fun (*this, &ThemeManager::palette_size_request));
643 canvas->signal_size_allocate().connect (sigc::bind (sigc::mem_fun (*this, &ThemeManager::palette_canvas_allocated), group, canvas,
644 sigc::bind (sigc::mem_fun (*this, &ThemeManager::alias_palette_event), name)));
646 palette_window->get_vbox()->pack_start (*canvas);
647 palette_window->show_all ();
649 palette_response_connection = palette_window->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ThemeManager::alias_palette_response), name, i->second));
651 palette_window->set_position (WIN_POS_MOUSE);
652 palette_window->present ();
656 ThemeManager::setup_aliases ()
658 using namespace ArdourCanvas;
660 UIConfiguration* uic (ARDOUR_UI::config());
661 UIConfiguration::ColorAliases& aliases (uic->color_aliases);
663 alias_list->clear ();
665 for (UIConfiguration::ColorAliases::iterator i = aliases.begin(); i != aliases.end(); ++i) {
666 TreeModel::Children rows = alias_list->children();
668 string::size_type colon;
670 if ((colon = i->first.find (':')) != string::npos) {
672 /* this is supposed to be a child node, so find the
676 string parent = i->first.substr (0, colon);
677 TreeModel::iterator ri;
679 for (ri = rows.begin(); ri != rows.end(); ++ri) {
680 string s = (*ri)[alias_columns.name];
686 if (ri == rows.end()) {
687 /* not found, add the parent as new top level row */
688 row = *(alias_list->append());
689 row[alias_columns.name] = parent;
690 row[alias_columns.alias] = "";
692 /* now add the child as a child of this one */
694 row = *(alias_list->insert (row->children().end()));
695 row[alias_columns.name] = i->first.substr (colon+1);
697 row = *(alias_list->insert ((*ri)->children().end()));
698 row[alias_columns.name] = i->first.substr (colon+1);
703 row = *(alias_list->append());
704 row[alias_columns.name] = i->first;
705 row[alias_columns.key] = i->first;
708 row[alias_columns.key] = i->first;
709 row[alias_columns.alias] = i->second;
713 Color c (uic->color (i->second));
714 color_to_rgba (c, r, g, b, a);
715 col.set_rgb_p (r, g, b);
717 row[alias_columns.color] = col;
722 ThemeManager::alias_button_press_event (GdkEventButton* ev)
725 TreeModel::Path path;
726 TreeViewColumn* column;
730 if (!alias_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
734 guint32 colnum = GPOINTER_TO_UINT (column->get_data (X_("colnum")));
738 /* allow normal processing to occur */
742 if ((iter = alias_list->get_iter (path))) {
743 string target_color_alias = (*iter)[alias_columns.key];
744 if (!target_color_alias.empty()) {
745 choose_color_from_palette (target_color_alias);