chiark - git - mdw - disorder/blob - disobedience/popup.c

   1 /*
   2  * This file is part of DisOrder
   3  * Copyright (C) 2008 Richard Kettlewell
   4  *
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 /** @file disobedience/popup.c
  19  * @brief Disobedience popup menus
  20  */
  21 #include "disobedience.h"
  22 #include "popup.h"
  23
  24 void popup(GtkWidget **menup,
  25            GdkEventButton *event,
  26            struct menuitem *items,
  27            int nitems,
  28            void *extra) {
  29   GtkWidget *menu = *menup;
  30
  31   /* Create the menu if it does not yet exist */
  32   if(!menu) {
  33     menu = *menup = gtk_menu_new();
  34     g_signal_connect(menu, "destroy",
  35                      G_CALLBACK(gtk_widget_destroyed), menup);
  36     for(int n = 0; n < nitems; ++n) {
  37       if(items[n].stock) {
  38         GtkWidget *image = gtk_image_new_from_stock(items[n].stock,
  39                                                     GTK_ICON_SIZE_MENU);
  40         items[n].w = gtk_image_menu_item_new_with_label(items[n].name);
  41         gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(items[n].w),
  42                                       image);
  43       } else
  44         items[n].w = gtk_menu_item_new_with_label(items[n].name);
  45       /* TODO accelerators would be useful here.  There might be some
  46        * interaction with the main menu accelerators, _except_ for playlist
  47        * case!  */
  48       gtk_menu_attach(GTK_MENU(menu), items[n].w, 0, 1, n, n + 1);
  49     }
  50     set_tool_colors(menu);
  51   }
  52   /* Configure item sensitivity */
  53   for(int n = 0; n < nitems; ++n) {
  54     if(items[n].handlerid)
  55       g_signal_handler_disconnect(items[n].w,
  56                                   items[n].handlerid);
  57     gtk_widget_set_sensitive(items[n].w,
  58                              items[n].sensitive(extra));
  59     items[n].handlerid = g_signal_connect(items[n].w,
  60                                           "activate",
  61                                           G_CALLBACK(items[n].activate),
  62                                           extra);
  63   }
  64   /* Pop up the menu */
  65   gtk_widget_show_all(menu);
  66   gtk_menu_popup(GTK_MENU(menu), 0, 0, 0, 0,
  67                  event->button, event->time);
  68 }
  69
  70 /** @brief Make sure the right thing is selected
  71  * @param treeview Tree view
  72  * @param event Mouse event
  73  */
  74 void ensure_selected(GtkTreeView *treeview,
  75                      GdkEventButton *event) {
  76   GtkTreeSelection *selection = gtk_tree_view_get_selection(treeview);
  77   /* Get the path of the hovered item */
  78   GtkTreePath *path;
  79   if(!gtk_tree_view_get_path_at_pos(treeview,
  80                                     event->x, event->y,
  81                                     &path,
  82                                     NULL,
  83                                     NULL, NULL))
  84     return;                     /* If there isn't one, do nothing */
  85   if(!gtk_tree_selection_path_is_selected(selection, path)) {
  86     /* We're hovered over one thing but it's not the selected row.  This is
  87      * very confusing for the poor old user so we select the hovered row. */
  88     gtk_tree_selection_unselect_all(selection);
  89     gtk_tree_selection_select_path(selection, path);
  90   }
  91   gtk_tree_path_free(path);
  92 }
  93
  94 /*
  95 Local Variables:
  96 c-basic-offset:2
  97 comment-column:40
  98 fill-column:79
  99 indent-tabs-mode:nil
 100 End:
 101 */