Work around tooltips in treeviews selection issue #7678

When tooltips are disabled, but a tooltip column is set for a treeview,
the treeview selection behaves inconsistently. It requires a 3rd click
after expanding any child-rows to select a child.

gtk2_ardour/editor_regions.cc

@@ -187,8 +187,10 @@ EditorRegions::EditorRegions (Editor* e)
 	_display.set_headers_visible (true);
 	_display.set_rules_hint ();
 
-	/* show path as the row tooltip */
+	if (UIConfiguration::instance().get_use_tooltips()) {
-	_display.set_tooltip_column (14); /* path */
+		/* show path as the row tooltip */
+		_display.set_tooltip_column (14); /* path */
+	}
 
 	CellRendererText* region_name_cell = dynamic_cast<CellRendererText*>(_display.get_column_cell_renderer (0));
 	region_name_cell->property_editable() = true;

gtk2_ardour/mixer_ui.cc

@@ -231,7 +231,6 @@ Mixer_UI::Mixer_UI ()
 	favorite_plugins_display.set_headers_visible (true);
 	favorite_plugins_display.set_rules_hint (true);
 	favorite_plugins_display.set_can_focus (false);
-	favorite_plugins_display.set_tooltip_column (0);
 	favorite_plugins_display.add_object_drag (favorite_plugins_columns.plugin.index(), "PluginFavoritePtr");
 	favorite_plugins_display.set_drag_column (favorite_plugins_columns.name.index());
 	favorite_plugins_display.add_drop_targets (target_list);
@@ -240,6 +239,9 @@ Mixer_UI::Mixer_UI ()
 	favorite_plugins_display.signal_drop.connect (sigc::mem_fun (*this, &Mixer_UI::plugin_drop));
 	favorite_plugins_display.signal_row_expanded().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
 	favorite_plugins_display.signal_row_collapsed().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
+	if (UIConfiguration::instance().get_use_tooltips()) {
+		favorite_plugins_display.set_tooltip_column (0);
+	}
 	favorite_plugins_model->signal_row_has_child_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::sync_treeview_favorite_ui_state));
 
 	favorite_plugins_scroller.add (favorite_plugins_display);

gtk2_ardour/session_dialog.cc

@@ -722,11 +722,13 @@ SessionDialog::setup_new_session_page ()
 #ifdef MIXBUS
 	template_chooser.append_column (_("Modified With"), session_template_columns.modified_with_short);
 #endif
-	template_chooser.set_tooltip_column(4); // modified_with_long
 	template_chooser.set_headers_visible (true);
 	template_chooser.get_selection()->set_mode (SELECTION_SINGLE);
 	template_chooser.get_selection()->signal_changed().connect (sigc::mem_fun (*this, &SessionDialog::template_row_selected));
 	template_chooser.set_sensitive (true);
+	if (UIConfiguration::instance().get_use_tooltips()) {
+		template_chooser.set_tooltip_column(4); // modified_with_long
+	}
 
 	session_new_vbox.pack_start (*template_hbox, true, true);
 	session_new_vbox.pack_start (*folder_box, false, true);
@@ -952,7 +954,9 @@ SessionDialog::redisplay_recent_sessions ()
 		row[recent_session_columns.time_formatted] = gdt.format ("%F %H:%M");
 	}
 
-	recent_session_display.set_tooltip_column(1); // recent_session_columns.tip
+	if (UIConfiguration::instance().get_use_tooltips()) {
+		recent_session_display.set_tooltip_column(1); // recent_session_columns.tip
+	}
 	recent_session_display.set_model (recent_session_model);
 
 	// custom sort

gtk2_ardour/session_import_dialog.cc

@@ -35,6 +35,7 @@
 
 #include "gui_thread.h"
 #include "session_import_dialog.h"
+#include "ui_config.h"
 
 #include "pbd/i18n.h"
 
@@ -76,10 +77,12 @@ SessionImportDialog::SessionImportDialog (ARDOUR::Session* target) :
 	session_browser.set_name ("SessionBrowser");
 	session_browser.append_column (_("Elements"), sb_cols.name);
 	session_browser.append_column_editable (_("Import"), sb_cols.queued);
-	session_browser.set_tooltip_column (3);
 	session_browser.get_column(0)->set_min_width (180);
 	session_browser.get_column(1)->set_min_width (40);
 	session_browser.get_column(1)->set_sizing (TREE_VIEW_COLUMN_AUTOSIZE);
+	if (UIConfiguration::instance().get_use_tooltips()) {
+		session_browser.set_tooltip_column (3);
+	}
 
 	session_scroll.set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 	session_scroll.add (session_browser);