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

   1 /*
   2  * Copyright (C) 2007 Raphael Slinckx <raphael@slinckx.net>
   3  * Copyright (C) 2007-2009 Collabora Ltd.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library 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 GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  *
  19  * Authors: Raphael Slinckx <raphael@slinckx.net>
  20  *          Cosimo Cecchi   <cosimo.cecchi@collabora.co.uk>
  21  */
  22
  23 #include <config.h>
  24
  25 #include <gtk/gtk.h>
  26
  27 #include <libempathy/empathy-utils.h>
  28
  29 #include "empathy-cell-renderer-activatable.h"
  30
  31 enum {
  32   PATH_ACTIVATED,
  33   LAST_SIGNAL
  34 };
  35
  36 enum {
  37   PROP_SHOW_ON_SELECT = 1
  38 };
  39
  40 typedef struct {
  41   gboolean show_on_select;
  42 } EmpathyCellRendererActivatablePriv;
  43
  44 static guint signals[LAST_SIGNAL];
  45
  46 G_DEFINE_TYPE (EmpathyCellRendererActivatable,
  47     empathy_cell_renderer_activatable, GTK_TYPE_CELL_RENDERER_PIXBUF)
  48
  49 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyCellRendererActivatable)
  50
  51 static void
  52 empathy_cell_renderer_activatable_init (EmpathyCellRendererActivatable *cell)
  53 {
  54   cell->priv = G_TYPE_INSTANCE_GET_PRIVATE (cell,
  55       EMPATHY_TYPE_CELL_RENDERER_ACTIVATABLE,
  56       EmpathyCellRendererActivatablePriv);
  57
  58   g_object_set (cell,
  59       "xpad", 0,
  60       "ypad", 0,
  61       "mode", GTK_CELL_RENDERER_MODE_ACTIVATABLE,
  62       "follow-state", TRUE,
  63       NULL);
  64 }
  65
  66 static void
  67 cell_renderer_activatable_get_property (GObject *object,
  68     guint prop_id,
  69     GValue *value,
  70     GParamSpec *pspec)
  71 {
  72   EmpathyCellRendererActivatablePriv *priv = GET_PRIV (object);
  73
  74   switch (prop_id)
  75     {
  76       case PROP_SHOW_ON_SELECT:
  77         g_value_set_boolean (value, priv->show_on_select);
  78         break;
  79       default:
  80         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
  81         break;
  82     }
  83 }
  84
  85 static void
  86 cell_renderer_activatable_set_property (GObject *object,
  87     guint prop_id,
  88     const GValue *value,
  89     GParamSpec *pspec)
  90 {
  91   EmpathyCellRendererActivatablePriv *priv = GET_PRIV (object);
  92
  93   switch (prop_id)
  94     {
  95       case PROP_SHOW_ON_SELECT:
  96         priv->show_on_select = g_value_get_boolean (value);
  97         break;
  98       default:
  99         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 100         break;
 101     }
 102 }
 103
 104 GtkCellRenderer *
 105 empathy_cell_renderer_activatable_new (void)
 106 {
 107   return g_object_new (EMPATHY_TYPE_CELL_RENDERER_ACTIVATABLE, NULL);
 108 }
 109
 110 static gboolean
 111 cell_renderer_activatable_activate (GtkCellRenderer      *cell,
 112     GdkEvent *event,
 113     GtkWidget *widget,
 114     const gchar *path_string,
 115     GdkRectangle *background_area,
 116     GdkRectangle *cell_area,
 117     GtkCellRendererState  flags)
 118 {
 119   EmpathyCellRendererActivatable *activatable;
 120   gint ex, ey, bx, by, bw, bh;
 121
 122   activatable = EMPATHY_CELL_RENDERER_ACTIVATABLE (cell);
 123
 124   if (!GTK_IS_TREE_VIEW (widget) || event == NULL ||
 125       event->type != GDK_BUTTON_PRESS) {
 126     return FALSE;
 127   }
 128
 129   ex  = (gint) ((GdkEventButton *) event)->x;
 130   ey  = (gint) ((GdkEventButton *) event)->y;
 131   bx = background_area->x;
 132   by = background_area->y;
 133   bw = background_area->width;
 134   bh = background_area->height;
 135
 136   if (ex < bx || ex > (bx+bw) || ey < by || ey > (by+bh)){
 137     /* Click wasn't on the icon */
 138     return FALSE;
 139   }
 140
 141   g_signal_emit (activatable, signals[PATH_ACTIVATED], 0, path_string);
 142
 143   return TRUE;
 144 }
 145
 146 static void
 147 cell_renderer_activatable_render (
 148     GtkCellRenderer      *cell,
 149     GdkWindow            *window,
 150     GtkWidget            *widget,
 151     GdkRectangle         *background_area,
 152     GdkRectangle         *cell_area,
 153     GdkRectangle         *expose_area,
 154     GtkCellRendererState  flags)
 155 {
 156   EmpathyCellRendererActivatablePriv *priv = GET_PRIV (cell);
 157
 158   if (priv->show_on_select && !(flags & (GTK_CELL_RENDERER_SELECTED)))
 159     return;
 160
 161   GTK_CELL_RENDERER_CLASS
 162     (empathy_cell_renderer_activatable_parent_class)->render (
 163         cell, window, widget, background_area, cell_area, expose_area, flags);
 164 }
 165
 166 static void
 167 empathy_cell_renderer_activatable_class_init (
 168     EmpathyCellRendererActivatableClass *klass)
 169 {
 170   GtkCellRendererClass *cell_class;
 171   GObjectClass *oclass;
 172
 173   oclass = G_OBJECT_CLASS (klass);
 174   oclass->get_property = cell_renderer_activatable_get_property;
 175   oclass->set_property = cell_renderer_activatable_set_property;
 176
 177   cell_class = GTK_CELL_RENDERER_CLASS (klass);
 178   cell_class->activate = cell_renderer_activatable_activate;
 179   cell_class->render = cell_renderer_activatable_render;
 180
 181   signals[PATH_ACTIVATED] =
 182     g_signal_new ("path-activated",
 183         G_TYPE_FROM_CLASS (klass),
 184         G_SIGNAL_RUN_LAST,
 185         0,
 186         NULL, NULL,
 187         g_cclosure_marshal_VOID__STRING,
 188         G_TYPE_NONE,
 189         1, G_TYPE_STRING);
 190
 191   g_object_class_install_property (oclass, PROP_SHOW_ON_SELECT,
 192       g_param_spec_boolean ("show-on-select",
 193           "Show on select",
 194           "Whether the cell renderer should be shown only when it's selected",
 195           FALSE,
 196           G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
 197
 198   g_type_class_add_private (klass,
 199       sizeof (EmpathyCellRendererActivatablePriv));
 200 }