irreco/src/core/irreco_button_browser_dlg.c

   1 /*
   2  * irreco - Ir Remote Control
   3  * Copyright (C) 2007  Arto Karppinen (arto.karppinen@iki.fi)
   4  *               2008  Joni Kokko (t5kojo01@students.oamk.fi)
   5  *               2008  Harri Vattulainen (t5vaha01@students.oamk.fi)
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  20  */
  21
  22 #include "irreco_button_browser_dlg.h"
  23 #include <hildon/hildon-banner.h>
  24
  25
  26
  27 /**
  28  * @addtogroup IrrecoButtonBrowserDlg
  29  * @ingroup Irreco
  30  *
  31  * Allow user to select one button from one theme.
  32  *
  33  * @{
  34  */
  35
  36 /**
  37  * @file
  38  * Source file of @ref IrrecoButtonBrowserDlg.
  39  */
  40
  41
  42
  43 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  44 /* Datatypes                                                                  */
  45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  46
  47 #define IRRECO_BUTTON_BROWSER_PREVIEW_WIDHT     (IRRECO_SCREEN_WIDTH / 6)
  48 #define IRRECO_BUTTON_BROWSER_PREVIEW_HEIGHT    (IRRECO_SCREEN_HEIGHT / 6)
  49
  50
  51
  52 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  53 /* Prototypes                                                                 */
  54 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  55
  56 static void
  57 _irreco_button_browser_dlg_set_banner(IrrecoButtonBrowserDlg *self,
  58                                                 const gchar *text,
  59                                                 gdouble fraction);
  60 static void
  61 _irreco_button_browser_dlg_hide_banner(IrrecoButtonBrowserDlg *self);
  62 static gboolean _irreco_button_browser_dlg_loader_images(
  63                                                 IrrecoButtonBrowserDlg *self);
  64 static void irreco_button_browser_dlg_image_selection_changed(
  65                                                 GtkTreeSelection * selection,
  66                                                 IrrecoButtonBrowserDlg *self);
  67 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  68 /* Construction & Destruction                                                 */
  69 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  70
  71 /**
  72  * @name Construction & Destruction
  73  * @{
  74  */
  75
  76 G_DEFINE_TYPE(IrrecoButtonBrowserDlg, irreco_button_browser_dlg,
  77               IRRECO_TYPE_INTERNAL_DLG)
  78
  79 static void irreco_button_browser_dlg_constructed(GObject *object)
  80 {
  81         IrrecoButtonBrowserDlg *self;
  82
  83         IRRECO_ENTER
  84
  85         G_OBJECT_CLASS(irreco_button_browser_dlg_parent_class)->constructed(
  86                                                                         object);
  87         self = IRRECO_BUTTON_BROWSER_DLG(object);
  88
  89         self->current_image = NULL;
  90
  91         /* Construct dialog. */
  92         gtk_window_set_title(GTK_WINDOW(self), _("Select preview button"));
  93         gtk_window_set_modal(GTK_WINDOW(self), TRUE);
  94         gtk_window_set_destroy_with_parent(GTK_WINDOW(self), TRUE);
  95         gtk_dialog_set_has_separator(GTK_DIALOG(self), FALSE);
  96
  97         /* Create list for images */
  98         self->images = IRRECO_LISTBOX_IMAGE(
  99                 irreco_listbox_image_new_with_autosize(200, 450, 180, 180));
 100         irreco_listbox_set_select_new_rows(IRRECO_LISTBOX(self->images), FALSE);
 101         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(self)->vbox),
 102                           GTK_WIDGET(self->images));
 103
 104         g_signal_connect(G_OBJECT(IRRECO_LISTBOX(self->images)->tree_selection),
 105                 "changed",
 106                 G_CALLBACK(irreco_button_browser_dlg_image_selection_changed),
 107                 self);
 108
 109         gtk_widget_show_all(GTK_WIDGET(self));
 110
 111         IRRECO_RETURN
 112 }
 113
 114 static void irreco_button_browser_dlg_init(IrrecoButtonBrowserDlg *self)
 115 {
 116         IRRECO_ENTER
 117         IRRECO_RETURN
 118 }
 119
 120 static void irreco_button_browser_dlg_finalize(GObject *object)
 121 {
 122         IrrecoButtonBrowserDlg *self;
 123
 124         IRRECO_ENTER
 125
 126         self = IRRECO_BUTTON_BROWSER_DLG(object);
 127         G_OBJECT_CLASS(irreco_button_browser_dlg_parent_class)->finalize(object);
 128
 129         IRRECO_RETURN
 130 }
 131
 132 static void
 133 irreco_button_browser_dlg_class_init(IrrecoButtonBrowserDlgClass *klass)
 134 {
 135         GObjectClass* object_class = G_OBJECT_CLASS (klass);
 136         object_class->finalize = irreco_button_browser_dlg_finalize;
 137         object_class->constructed = irreco_button_browser_dlg_constructed;
 138 }
 139
 140 GtkWidget *irreco_button_browser_dlg_new(IrrecoData *irreco_data,
 141                                      GtkWindow *parent_window)
 142 {
 143         IrrecoButtonBrowserDlg *self;
 144
 145         IRRECO_ENTER
 146
 147         self = g_object_new(IRRECO_TYPE_BUTTON_BROWSER_DLG,
 148                             "irreco-data", irreco_data,
 149                             NULL);
 150         irreco_dlg_set_parent(IRRECO_DLG(self), parent_window);
 151
 152         IRRECO_RETURN_PTR(self);
 153 }
 154
 155 /** @} */
 156
 157
 158
 159 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 160 /* Private Functions                                                          */
 161 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 162 /**
 163  * @name Private Functions
 164  * @{
 165  */
 166
 167 /**
 168  * Show hildon progressbar banner.
 169  *
 170  * This function will create a new banner if one has not been created yet,
 171  * if banner already exists, it's properties will be changed.
 172  *
 173  * @param text          Text to show.
 174  * @param fraction      Value of progress.
 175  */
 176 static void
 177 _irreco_button_browser_dlg_set_banner(IrrecoButtonBrowserDlg *self,
 178                                                 const gchar *text,
 179                                                 gdouble fraction)
 180 {
 181         IRRECO_ENTER
 182
 183         if (self->banner == NULL) {
 184                 self->banner = hildon_banner_show_progress(
 185                         GTK_WIDGET(self), NULL, "");
 186         }
 187
 188         hildon_banner_set_text(HILDON_BANNER(self->banner), text);
 189         hildon_banner_set_fraction(HILDON_BANNER(self->banner), fraction);
 190
 191         IRRECO_RETURN
 192 }
 193
 194 /**
 195  * Destroy banner, if it exists.
 196  */
 197 static void
 198 _irreco_button_browser_dlg_hide_banner(IrrecoButtonBrowserDlg *self)
 199 {
 200         IRRECO_ENTER
 201
 202         if (self->banner) {
 203                 gtk_widget_destroy(self->banner);
 204                 self->banner = NULL;
 205         }
 206
 207         IRRECO_RETURN
 208 }
 209
 210 /**
 211  * Background-image loader.
 212  *
 213  * This loader will create a list of background-images from the
 214  * given theme and update the TreeView accordingly.
 215  */
 216 static gboolean _irreco_button_browser_dlg_loader_images(
 217                                                 IrrecoButtonBrowserDlg *self)
 218 {
 219         gint theme_button_count;
 220         gfloat banner;
 221         gboolean rvalue;
 222
 223         IRRECO_ENTER
 224
 225         theme_button_count = irreco_string_table_lenght(self->theme->buttons);
 226
 227         if (theme_button_count > 0) {
 228                 if(self->loader_index == 0) {
 229                         _irreco_button_browser_dlg_set_banner(self,
 230                                                               _("Loading ..."),
 231                                                               0);
 232                 }
 233                 rvalue = TRUE;
 234         } else {
 235                 rvalue = FALSE;
 236         }
 237
 238         if(self->loader_index < theme_button_count){
 239                 IrrecoThemeButton       *button_image;
 240                 const gchar             *image_name;
 241                 /* get button */
 242                 irreco_string_table_index(self->theme->buttons,
 243                                         self->loader_index,
 244                                         &image_name,
 245                                         (gpointer *) &button_image);
 246                 /* add button to list */
 247                 irreco_listbox_image_append(self->images,
 248                                 button_image->name->str,
 249                                 button_image,
 250                                 button_image->image_up->str);
 251                 /* get and set banner fraction */
 252                 banner = (gfloat) self->loader_index /
 253                                                 (gfloat) theme_button_count;
 254                 _irreco_button_browser_dlg_set_banner(self,
 255                                                         _("Loading ..."),
 256                                                         banner);
 257                 /* get next button, next time */
 258                 self->loader_index++;
 259         }
 260
 261         if(self->loader_index == theme_button_count) {
 262                 _irreco_button_browser_dlg_hide_banner(self);
 263                 rvalue = FALSE;
 264         }
 265
 266         IRRECO_RETURN_BOOL(rvalue);
 267 }
 268
 269 /** @} */
 270
 271
 272
 273 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 274 /* Public Functions                                                           */
 275 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 276
 277 /**
 278  * Show dialog, and ask user for input.
 279  */
 280
 281 IrrecoThemeButton *irreco_button_browser_dlg_run(GtkWindow *parent_window,
 282                                      IrrecoData *irreco_data,
 283                                      IrrecoTheme * irreco_theme)
 284 {
 285         IrrecoButtonBrowserDlg  *self;
 286         gint                    response;
 287         gboolean                loop    = TRUE;
 288         IrrecoThemeButton       *rvalue = NULL;
 289
 290         IRRECO_ENTER
 291
 292         self = (IrrecoButtonBrowserDlg *)irreco_button_browser_dlg_new(
 293                                                                 irreco_data,
 294                                                                 parent_window);
 295
 296         self->theme = irreco_theme;
 297
 298         /* init and start loading buttons */
 299         self->loader_index = 0;
 300         irreco_listbox_clear(IRRECO_LISTBOX(self->images));
 301         g_idle_add((GSourceFunc)_irreco_button_browser_dlg_loader_images, self);
 302
 303         do {
 304                 response = gtk_dialog_run(GTK_DIALOG(self));
 305
 306                 switch (response) {
 307                 case GTK_RESPONSE_DELETE_EVENT:
 308                         IRRECO_DEBUG("GTK_RESPONSE_DELETE_EVENT\n");
 309                         rvalue = NULL;
 310                         loop = FALSE;
 311                         break;
 312
 313                 case GTK_RESPONSE_ACCEPT:
 314                         IRRECO_DEBUG("GTK_RESPONSE_ACCEPT\n");
 315                         /*rvalue = g_strdup(self->current_image->name->str);*/
 316                         rvalue = self->current_image;
 317                         loop = FALSE;
 318                         break;
 319
 320                 default:
 321                         IRRECO_DEBUG("Something went horribly wrong\n");
 322                         break;
 323                 }
 324         } while (loop);
 325
 326         gtk_widget_destroy(GTK_WIDGET(self));
 327
 328         IRRECO_RETURN_PTR(rvalue);
 329 }
 330
 331 /** @} */
 332
 333
 334
 335 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 336 /* Events and Callbacks                                                       */
 337 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 338
 339 /**
 340  * @name Events and Callbacks
 341  * @{
 342  */
 343
 344 /**
 345  * Respond to image selection change.
 346  *
 347  * This function will store selected button to self->current_image
 348  */
 349 static void irreco_button_browser_dlg_image_selection_changed(
 350                                                 GtkTreeSelection *selection,
 351                                                 IrrecoButtonBrowserDlg *self)
 352 {
 353         gint sel_index = -1;
 354         gchar *sel_label = NULL;
 355         IrrecoThemeButton *button = NULL;
 356
 357         IRRECO_ENTER
 358
 359         if (irreco_listbox_get_selection(IRRECO_LISTBOX(self->images),
 360                                 &sel_index, &sel_label, (gpointer *)&button)) {
 361                 self->current_image = button;
 362         } else {
 363                 self->current_image = NULL;
 364         }
 365
 366         g_free(sel_label);
 367         gtk_dialog_response(GTK_DIALOG(self), GTK_RESPONSE_ACCEPT);
 368
 369         IRRECO_RETURN
 370 }
 371
 372 /** @} */
 373
 374
 375
 376 /** @} */