libempathy-gtk/empathy-cell-renderer-activatable.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2007 Raphael Slinckx <raphael@slinckx.net>
   4  * Copyright (C) 2007-2008 Collabora Ltd.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  * Authors: Raphael Slinckx <raphael@slinckx.net>
  21  */
  22
  23 #include <gtk/gtktreeview.h>
  24
  25 #include "empathy-cell-renderer-activatable.h"
  26
  27 static void     empathy_cell_renderer_activatable_init       (EmpathyCellRendererActivatable      *cell);
  28 static void     empathy_cell_renderer_activatable_class_init (EmpathyCellRendererActivatableClass *klass);
  29 static gboolean cell_renderer_activatable_activate           (GtkCellRenderer                     *cell,
  30                                                               GdkEvent                            *event,
  31                                                               GtkWidget                           *widget,
  32                                                               const gchar                         *path,
  33                                                               GdkRectangle                        *background_area,
  34                                                               GdkRectangle                        *cell_area,
  35                                                               GtkCellRendererState                 flags);
  36
  37 enum {
  38         PATH_ACTIVATED,
  39         LAST_SIGNAL
  40 };
  41
  42 static guint signals[LAST_SIGNAL];
  43
  44 G_DEFINE_TYPE (EmpathyCellRendererActivatable, empathy_cell_renderer_activatable, GTK_TYPE_CELL_RENDERER_PIXBUF)
  45
  46 static void
  47 empathy_cell_renderer_activatable_init (EmpathyCellRendererActivatable *cell)
  48 {
  49         g_object_set (cell,
  50                       "xpad", 0,
  51                       "ypad", 0,
  52                       "mode", GTK_CELL_RENDERER_MODE_ACTIVATABLE,
  53                       "follow-state", TRUE,
  54                       NULL);
  55 }
  56
  57 static void
  58 empathy_cell_renderer_activatable_class_init (EmpathyCellRendererActivatableClass *klass)
  59 {
  60         GtkCellRendererClass *cell_class;
  61
  62         cell_class = GTK_CELL_RENDERER_CLASS (klass);
  63         cell_class->activate = cell_renderer_activatable_activate;
  64
  65         signals[PATH_ACTIVATED] =
  66                 g_signal_new ("path-activated",
  67                               G_TYPE_FROM_CLASS (klass),
  68                               G_SIGNAL_RUN_LAST,
  69                               0,
  70                               NULL, NULL,
  71                               g_cclosure_marshal_VOID__STRING,
  72                               G_TYPE_NONE,
  73                               1, G_TYPE_STRING);
  74 }
  75
  76 GtkCellRenderer *
  77 empathy_cell_renderer_activatable_new (void)
  78 {
  79         return g_object_new (EMPATHY_TYPE_CELL_RENDERER_ACTIVATABLE, NULL);
  80 }
  81
  82 static gboolean
  83 cell_renderer_activatable_activate (GtkCellRenderer      *cell,
  84                                     GdkEvent             *event,
  85                                     GtkWidget            *widget,
  86                                     const gchar          *path_string,
  87                                     GdkRectangle         *background_area,
  88                                     GdkRectangle         *cell_area,
  89                                     GtkCellRendererState  flags)
  90 {
  91         EmpathyCellRendererActivatable *activatable;
  92         gint                            ex, ey, bx, by, bw, bh;
  93
  94         activatable = EMPATHY_CELL_RENDERER_ACTIVATABLE (cell);
  95
  96         if (!GTK_IS_TREE_VIEW (widget) || event == NULL ||
  97             event->type != GDK_BUTTON_PRESS) {
  98                 return FALSE;
  99         }
 100
 101         ex  = (gint) ((GdkEventButton *) event)->x;
 102         ey  = (gint) ((GdkEventButton *) event)->y;
 103         bx = background_area->x;
 104         by = background_area->y;
 105         bw = background_area->width;
 106         bh = background_area->height;
 107
 108         if (ex < bx || ex > (bx+bw) || ey < by || ey > (by+bh)){
 109                 /* Click wasn't on the icon */
 110                 return FALSE;
 111         }
 112
 113         g_signal_emit (activatable, signals[PATH_ACTIVATED], 0, path_string);
 114
 115         return TRUE;
 116 }
 117