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

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2004-2007 Imendio AB
   4  * Copyright (C) 2010 Collabora Ltd
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program 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  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  19  * Boston, MA  02110-1301  USA
  20  *
  21  * Authors: Mikael Hallendal <micke@imendio.com>
  22  */
  23
  24 #include "config.h"
  25
  26 #include <string.h>
  27
  28 #include <libempathy/empathy-utils.h>
  29 #include "empathy-cell-renderer-text.h"
  30
  31 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyCellRendererText)
  32 typedef struct {
  33         gchar    *name;
  34         TpConnectionPresenceType presence_type;
  35         gchar    *status;
  36         gboolean  is_group;
  37
  38         gboolean  is_valid;
  39         gboolean  is_selected;
  40
  41         gchar   **types;
  42
  43         gboolean  compact;
  44 } EmpathyCellRendererTextPriv;
  45
  46 static void cell_renderer_text_finalize          (GObject                     *object);
  47 static void cell_renderer_text_get_property      (GObject                     *object,
  48                                                   guint                        param_id,
  49                                                   GValue                      *value,
  50                                                   GParamSpec                  *pspec);
  51 static void cell_renderer_text_set_property      (GObject                     *object,
  52                                                   guint                        param_id,
  53                                                   const GValue                *value,
  54                                                   GParamSpec                  *pspec);
  55 static void cell_renderer_text_render            (GtkCellRenderer             *cell,
  56                                                   cairo_t *cr,
  57                                                   GtkWidget                   *widget,
  58                                                   const GdkRectangle          *background_area,
  59                                                   const GdkRectangle          *cell_area,
  60                                                   GtkCellRendererState         flags);
  61 static void cell_renderer_text_update_text       (EmpathyCellRendererText      *cell,
  62                                                   GtkWidget                   *widget,
  63                                                   gboolean                     selected);
  64
  65 /* Properties */
  66 enum {
  67         PROP_0,
  68         PROP_NAME,
  69         PROP_PRESENCE_TYPE,
  70         PROP_STATUS,
  71         PROP_IS_GROUP,
  72         PROP_COMPACT,
  73         PROP_CLIENT_TYPES
  74 };
  75
  76 G_DEFINE_TYPE (EmpathyCellRendererText, empathy_cell_renderer_text, GTK_TYPE_CELL_RENDERER_TEXT);
  77
  78 static void
  79 cell_renderer_text_get_preferred_height_for_width (GtkCellRenderer *renderer,
  80                                                                 GtkWidget *widget,
  81                                                                 gint width,
  82                                                                 gint *minimum_size,
  83                                                                 gint *natural_size)
  84 {
  85         EmpathyCellRendererText *self = EMPATHY_CELL_RENDERER_TEXT (renderer);
  86         EmpathyCellRendererTextPriv *priv = GET_PRIV (self);
  87
  88         /* Only update if not already valid so we get the right size. */
  89         cell_renderer_text_update_text (self, widget, priv->is_selected);
  90
  91         GTK_CELL_RENDERER_CLASS (empathy_cell_renderer_text_parent_class)->
  92                         get_preferred_height_for_width (renderer, widget, width,
  93                                         minimum_size, natural_size);
  94 }
  95
  96
  97 static void
  98 empathy_cell_renderer_text_class_init (EmpathyCellRendererTextClass *klass)
  99 {
 100         GObjectClass         *object_class;
 101         GtkCellRendererClass *cell_class;
 102         GParamSpec           *spec;
 103
 104         object_class = G_OBJECT_CLASS (klass);
 105         cell_class = GTK_CELL_RENDERER_CLASS (klass);
 106
 107         object_class->finalize = cell_renderer_text_finalize;
 108
 109         object_class->get_property = cell_renderer_text_get_property;
 110         object_class->set_property = cell_renderer_text_set_property;
 111
 112         cell_class->get_preferred_height_for_width = cell_renderer_text_get_preferred_height_for_width;
 113         cell_class->render = cell_renderer_text_render;
 114
 115         spec = g_param_spec_string ("name", "Name", "Contact name", NULL,
 116                 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 117         g_object_class_install_property (object_class, PROP_NAME, spec);
 118
 119         spec = g_param_spec_uint ("presence-type", "TpConnectionPresenceType",
 120                 "The contact's presence type",
 121                 0, G_MAXUINT, /* Telepathy enum, can be extended */
 122                 TP_CONNECTION_PRESENCE_TYPE_UNKNOWN,
 123                 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 124         g_object_class_install_property (object_class, PROP_PRESENCE_TYPE,
 125                 spec);
 126
 127         spec = g_param_spec_string ("status", "Status message",
 128                 "Contact's custom status message", NULL,
 129                 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 130         g_object_class_install_property (object_class, PROP_STATUS, spec);
 131
 132         spec = g_param_spec_boolean ("is-group", "Is group",
 133                 "Whether this cell is a group", FALSE,
 134                 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 135         g_object_class_install_property (object_class, PROP_IS_GROUP, spec);
 136
 137         spec = g_param_spec_boolean ("compact", "Compact",
 138                 "TRUE to show the status alongside the contact name;"
 139                 "FALSE to show it on its own line",
 140                 FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 141         g_object_class_install_property (object_class, PROP_COMPACT, spec);
 142
 143         spec = g_param_spec_boxed ("client-types", "Contact client types",
 144                 "Client types of the contact",
 145                 G_TYPE_STRV, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 146         g_object_class_install_property (object_class, PROP_CLIENT_TYPES, spec);
 147
 148         g_type_class_add_private (object_class, sizeof (EmpathyCellRendererTextPriv));
 149 }
 150
 151 static void
 152 empathy_cell_renderer_text_init (EmpathyCellRendererText *cell)
 153 {
 154         EmpathyCellRendererTextPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (cell,
 155                 EMPATHY_TYPE_CELL_RENDERER_TEXT, EmpathyCellRendererTextPriv);
 156
 157         cell->priv = priv;
 158         g_object_set (cell,
 159                       "ellipsize", PANGO_ELLIPSIZE_END,
 160                       NULL);
 161
 162         priv->name = g_strdup ("");
 163         priv->status = g_strdup ("");
 164         priv->compact = FALSE;
 165 }
 166
 167 static void
 168 cell_renderer_text_finalize (GObject *object)
 169 {
 170         EmpathyCellRendererText     *cell;
 171         EmpathyCellRendererTextPriv *priv;
 172
 173         cell = EMPATHY_CELL_RENDERER_TEXT (object);
 174         priv = GET_PRIV (cell);
 175
 176         g_free (priv->name);
 177         g_free (priv->status);
 178         g_strfreev (priv->types);
 179
 180         (G_OBJECT_CLASS (empathy_cell_renderer_text_parent_class)->finalize) (object);
 181 }
 182
 183 static void
 184 cell_renderer_text_get_property (GObject    *object,
 185                                  guint       param_id,
 186                                  GValue     *value,
 187                                  GParamSpec *pspec)
 188 {
 189         EmpathyCellRendererText     *cell;
 190         EmpathyCellRendererTextPriv *priv;
 191
 192         cell = EMPATHY_CELL_RENDERER_TEXT (object);
 193         priv = GET_PRIV (cell);
 194
 195         switch (param_id) {
 196         case PROP_NAME:
 197                 g_value_set_string (value, priv->name);
 198                 break;
 199         case PROP_PRESENCE_TYPE:
 200                 g_value_set_uint (value, priv->presence_type);
 201                 break;
 202         case PROP_STATUS:
 203                 g_value_set_string (value, priv->status);
 204                 break;
 205         case PROP_IS_GROUP:
 206                 g_value_set_boolean (value, priv->is_group);
 207                 break;
 208         case PROP_COMPACT:
 209                 g_value_set_boolean (value, priv->compact);
 210                 break;
 211         case PROP_CLIENT_TYPES:
 212                 g_value_set_boxed (value, priv->types);
 213                 break;
 214         default:
 215                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 216                 break;
 217         }
 218 }
 219
 220 static void
 221 cell_renderer_text_set_property (GObject      *object,
 222                                  guint         param_id,
 223                                  const GValue *value,
 224                                  GParamSpec   *pspec)
 225 {
 226         EmpathyCellRendererText     *cell;
 227         EmpathyCellRendererTextPriv *priv;
 228         const gchar                *str;
 229
 230         cell = EMPATHY_CELL_RENDERER_TEXT (object);
 231         priv = GET_PRIV (cell);
 232
 233         switch (param_id) {
 234         case PROP_NAME:
 235                 g_free (priv->name);
 236                 str = g_value_get_string (value);
 237                 priv->name = g_strdup (str ? str : "");
 238                 g_strdelimit (priv->name, "\n\r\t", ' ');
 239                 priv->is_valid = FALSE;
 240                 break;
 241         case PROP_PRESENCE_TYPE:
 242                 priv->presence_type = g_value_get_uint (value);
 243                 priv->is_valid = FALSE;
 244                 break;
 245         case PROP_STATUS:
 246                 g_free (priv->status);
 247                 str = g_value_get_string (value);
 248                 priv->status = g_strdup (str ? str : "");
 249                 g_strdelimit (priv->status, "\n\r\t", ' ');
 250                 priv->is_valid = FALSE;
 251                 break;
 252         case PROP_IS_GROUP:
 253                 priv->is_group = g_value_get_boolean (value);
 254                 priv->is_valid = FALSE;
 255                 break;
 256         case PROP_COMPACT:
 257                 priv->compact = g_value_get_boolean (value);
 258                 priv->is_valid = FALSE;
 259                 break;
 260         case PROP_CLIENT_TYPES:
 261                 g_strfreev (priv->types);
 262                 priv->types = g_value_dup_boxed (value);
 263                 priv->is_valid = FALSE;
 264                 break;
 265         default:
 266                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 267                 break;
 268         }
 269 }
 270
 271 static void
 272 cell_renderer_text_render (GtkCellRenderer      *cell,
 273                            cairo_t *cr,
 274                            GtkWidget            *widget,
 275                            const GdkRectangle   *background_area,
 276                            const GdkRectangle   *cell_area,
 277                            GtkCellRendererState  flags)
 278 {
 279         EmpathyCellRendererText *celltext;
 280
 281         celltext = EMPATHY_CELL_RENDERER_TEXT (cell);
 282
 283         cell_renderer_text_update_text (celltext,
 284                                         widget,
 285                                         (flags & GTK_CELL_RENDERER_SELECTED));
 286
 287         (GTK_CELL_RENDERER_CLASS (empathy_cell_renderer_text_parent_class)->render) (
 288                 cell, cr,
 289                 widget,
 290                 background_area,
 291                 cell_area,
 292                 flags);
 293 }
 294
 295 static void
 296 cell_renderer_text_update_text (EmpathyCellRendererText *cell,
 297                                 GtkWidget              *widget,
 298                                 gboolean                selected)
 299 {
 300         EmpathyCellRendererTextPriv *priv;
 301         const PangoFontDescription *font_desc;
 302         PangoAttrList              *attr_list;
 303         PangoAttribute             *attr_color = NULL, *attr_size;
 304         GtkStyleContext            *style;
 305         gchar                      *str;
 306         gint                        font_size;
 307
 308         priv = GET_PRIV (cell);
 309
 310         if (priv->is_valid && priv->is_selected == selected) {
 311                 return;
 312         }
 313
 314         if (priv->is_group) {
 315                 g_object_set (cell,
 316                               "visible", TRUE,
 317                               "weight", PANGO_WEIGHT_BOLD,
 318                               "text", priv->name,
 319                               "attributes", NULL,
 320                               "xpad", 1,
 321                               "ypad", 1,
 322                               NULL);
 323
 324                 priv->is_selected = selected;
 325                 priv->is_valid = TRUE;
 326                 return;
 327         }
 328
 329         style = gtk_widget_get_style_context (widget);
 330
 331         attr_list = pango_attr_list_new ();
 332
 333         font_desc = gtk_style_context_get_font (style, GTK_STATE_FLAG_NORMAL);
 334         font_size = pango_font_description_get_size (font_desc);
 335         attr_size = pango_attr_size_new (font_size / 1.2);
 336         attr_size->start_index = strlen (priv->name) + 1;
 337         attr_size->end_index = -1;
 338         pango_attr_list_insert (attr_list, attr_size);
 339
 340         if (!selected) {
 341                 GdkRGBA color;
 342
 343                 gtk_style_context_get_color (style, 0, &color);
 344
 345                 attr_color = pango_attr_foreground_new (color.red * 0xffff,
 346                                                         color.green * 0xffff,
 347                                                         color.blue * 0xffff);
 348                 attr_color->start_index = attr_size->start_index;
 349                 attr_color->end_index = -1;
 350                 pango_attr_list_insert (attr_list, attr_color);
 351         }
 352
 353         if (priv->compact) {
 354                 if (EMP_STR_EMPTY (priv->status)) {
 355                         str = g_strdup (priv->name);
 356                 } else {
 357                         str = g_strdup_printf ("%s %s", priv->name, priv->status);
 358                 }
 359         } else {
 360                 const gchar *status = priv->status;
 361                 gboolean on_a_phone = FALSE;
 362
 363                 if (EMP_STR_EMPTY (priv->status)) {
 364                         status = empathy_presence_get_default_message (priv->presence_type);
 365                 }
 366
 367                 if (!priv->is_group && priv->types != NULL && g_strv_length (priv->types) > 0
 368                     && !tp_strdiff (priv->types[0], "phone")) {
 369                         on_a_phone = TRUE;
 370                         /* We want the phone black. */
 371                         if (attr_color)
 372                                 attr_color->start_index += 3;
 373                 }
 374
 375                 if (status == NULL)
 376                         str = g_strdup (priv->name);
 377                 else
 378                         str = g_strdup_printf ("%s\n%s%s", priv->name,
 379                                                on_a_phone ? "☎  " : "",
 380                                                status);
 381         }
 382
 383         g_object_set (cell,
 384                       "visible", TRUE,
 385                       "weight", PANGO_WEIGHT_NORMAL,
 386                       "text", str,
 387                       "attributes", attr_list,
 388                       "xpad", 0,
 389                       "ypad", 1,
 390                       NULL);
 391
 392         g_free (str);
 393         pango_attr_list_unref (attr_list);
 394
 395         priv->is_selected = selected;
 396         priv->is_valid = TRUE;
 397 }
 398
 399 GtkCellRenderer *
 400 empathy_cell_renderer_text_new (void)
 401 {
 402         return g_object_new (EMPATHY_TYPE_CELL_RENDERER_TEXT, NULL);
 403 }