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 #include "irreco_webdb_client.h"
  25
  26
  27
  28 /**
  29  * @addtogroup IrrecoButtonBrowserDlg
  30  * @ingroup Irreco
  31  *
  32  * Allow user to select one button from one theme.
  33  *
  34  * @{
  35  */
  36
  37 /**
  38  * @file
  39  * Source file of @ref IrrecoButtonBrowserDlg.
  40  */
  41
  42
  43
  44 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  45 /* Datatypes                                                                  */
  46 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  47
  48 #define IRRECO_BUTTON_BROWSER_PREVIEW_WIDHT     (IRRECO_SCREEN_WIDTH / 6)
  49 #define IRRECO_BUTTON_BROWSER_PREVIEW_HEIGHT    (IRRECO_SCREEN_HEIGHT / 6)
  50
  51
  52
  53 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  54 /* Prototypes                                                                 */
  55 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  56
  57 static void
  58 _irreco_button_browser_dlg_set_banner(IrrecoButtonBrowserDlg *self,
  59                                                 const gchar *text,
  60                                                 gdouble fraction);
  61 static void
  62 _irreco_button_browser_dlg_hide_banner(IrrecoButtonBrowserDlg *self);
  63 static gboolean _irreco_button_browser_dlg_loader_images(
  64                                                 IrrecoButtonBrowserDlg *self);
  65 static void irreco_button_browser_dlg_image_selection_changed(
  66                                                 GtkTreeSelection * selection,
  67                                                 IrrecoButtonBrowserDlg *self);
  68 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  69 /* Construction & Destruction                                                 */
  70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  71
  72 /**
  73  * @name Construction & Destruction
  74  * @{
  75  */
  76
  77 G_DEFINE_TYPE(IrrecoButtonBrowserDlg, irreco_button_browser_dlg,
  78               IRRECO_TYPE_INTERNAL_DLG)
  79
  80 static void irreco_button_browser_dlg_constructed(GObject *object)
  81 {
  82         IrrecoButtonBrowserDlg *self;
  83
  84         IRRECO_ENTER
  85
  86         G_OBJECT_CLASS(irreco_button_browser_dlg_parent_class)->constructed(
  87                                                                         object);
  88         self = IRRECO_BUTTON_BROWSER_DLG(object);
  89
  90         self->current_image = NULL;
  91
  92         /* Construct dialog. */
  93         gtk_window_set_title(GTK_WINDOW(self), _("Select preview button"));
  94         gtk_window_set_modal(GTK_WINDOW(self), TRUE);
  95         gtk_window_set_destroy_with_parent(GTK_WINDOW(self), TRUE);
  96         gtk_dialog_set_has_separator(GTK_DIALOG(self), FALSE);
  97         gtk_dialog_add_buttons(GTK_DIALOG(self),
  98                                GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
  99                                NULL);
 100
 101         /* Create list for images */
 102         self->images = IRRECO_LISTBOX_IMAGE(
 103                 irreco_listbox_image_new_with_autosize(200, 450, 180, 180));
 104         irreco_listbox_set_select_new_rows(IRRECO_LISTBOX(self->images), FALSE);
 105         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(self)->vbox),
 106                           GTK_WIDGET(self->images));
 107
 108         g_signal_connect(G_OBJECT(IRRECO_LISTBOX(self->images)->tree_selection),
 109                 "changed",
 110                 G_CALLBACK(irreco_button_browser_dlg_image_selection_changed),
 111                 self);
 112
 113         gtk_widget_show_all(GTK_WIDGET(self));
 114
 115         IRRECO_RETURN
 116 }
 117
 118 static void irreco_button_browser_dlg_init(IrrecoButtonBrowserDlg *self)
 119 {
 120         IRRECO_ENTER
 121         IRRECO_RETURN
 122 }
 123
 124 static void irreco_button_browser_dlg_finalize(GObject *object)
 125 {
 126         IrrecoButtonBrowserDlg *self;
 127
 128         IRRECO_ENTER
 129
 130         self = IRRECO_BUTTON_BROWSER_DLG(object);
 131         G_OBJECT_CLASS(irreco_button_browser_dlg_parent_class)->finalize(object);
 132
 133         IRRECO_RETURN
 134 }
 135
 136 static void
 137 irreco_button_browser_dlg_class_init(IrrecoButtonBrowserDlgClass *klass)
 138 {
 139         GObjectClass* object_class = G_OBJECT_CLASS (klass);
 140         object_class->finalize = irreco_button_browser_dlg_finalize;
 141         object_class->constructed = irreco_button_browser_dlg_constructed;
 142 }
 143
 144 GtkWidget *irreco_button_browser_dlg_new(IrrecoData *irreco_data,
 145                                      GtkWindow *parent_window)
 146 {
 147         IrrecoButtonBrowserDlg *self;
 148
 149         IRRECO_ENTER
 150
 151         self = g_object_new(IRRECO_TYPE_BUTTON_BROWSER_DLG,
 152                             "irreco-data", irreco_data,
 153                             NULL);
 154         irreco_dlg_set_parent(IRRECO_DLG(self), parent_window);
 155
 156         IRRECO_RETURN_PTR(self);
 157 }
 158
 159 /** @} */
 160
 161
 162
 163 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 164 /* Private Functions                                                          */
 165 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 166 /**
 167  * @name Private Functions
 168  * @{
 169  */
 170
 171 /**
 172  * Show hildon progressbar banner.
 173  *
 174  * This function will create a new banner if one has not been created yet,
 175  * if banner already exists, it's properties will be changed.
 176  *
 177  * @param text          Text to show.
 178  * @param fraction      Value of progress.
 179  */
 180 static void
 181 _irreco_button_browser_dlg_set_banner(IrrecoButtonBrowserDlg *self,
 182                                                 const gchar *text,
 183                                                 gdouble fraction)
 184 {
 185         IRRECO_ENTER
 186
 187         if (self->banner == NULL) {
 188                 self->banner = hildon_banner_show_progress(
 189                         GTK_WIDGET(self), NULL, "");
 190         }
 191
 192         hildon_banner_set_text(HILDON_BANNER(self->banner), text);
 193         hildon_banner_set_fraction(HILDON_BANNER(self->banner), fraction);
 194
 195         IRRECO_RETURN
 196 }
 197
 198 /**
 199  * Destroy banner, if it exists.
 200  */
 201 static void
 202 _irreco_button_browser_dlg_hide_banner(IrrecoButtonBrowserDlg *self)
 203 {
 204         IRRECO_ENTER
 205
 206         if (self->banner) {
 207                 gtk_widget_destroy(self->banner);
 208                 self->banner = NULL;
 209         }
 210
 211         IRRECO_RETURN
 212 }
 213
 214 /**
 215  * Background-image loader.
 216  *
 217  * This loader will create a list of background-images from the
 218  * given theme and update the TreeView accordingly.
 219  */
 220 static gboolean _irreco_button_browser_dlg_loader_images(
 221                                                 IrrecoButtonBrowserDlg *self)
 222 {
 223         gint theme_button_count;
 224         gfloat banner;
 225         gboolean rvalue;
 226
 227         IRRECO_ENTER
 228
 229         theme_button_count = irreco_string_table_lenght(self->theme->buttons);
 230
 231         if (theme_button_count > 0) {
 232                 if(self->loader_index == 0) {
 233                         _irreco_button_browser_dlg_set_banner(self,
 234                                                               _("Loading ..."),
 235                                                               0);
 236                 }
 237                 rvalue = TRUE;
 238         } else {
 239                 rvalue = FALSE;
 240         }
 241
 242         if(self->loader_index < theme_button_count){
 243                 IrrecoThemeButton       *button_image;
 244                 const gchar             *image_name;
 245                 /* get button */
 246                 irreco_string_table_index(self->theme->buttons,
 247                                         self->loader_index,
 248                                         &image_name,
 249                                         (gpointer *) &button_image);
 250                 /* add button to list */
 251                 irreco_listbox_image_append(self->images,
 252                                 button_image->name->str,
 253                                 button_image,
 254                                 button_image->image_up->str);
 255                 /* get and set banner fraction */
 256                 banner = (gfloat) self->loader_index /
 257                                                 (gfloat) theme_button_count;
 258                 _irreco_button_browser_dlg_set_banner(self,
 259                                                         _("Loading ..."),
 260                                                         banner);
 261                 /* get next button, next time */
 262                 self->loader_index++;
 263         }
 264
 265         if(self->loader_index == theme_button_count) {
 266                 _irreco_button_browser_dlg_hide_banner(self);
 267                 rvalue = FALSE;
 268         }
 269
 270         IRRECO_RETURN_BOOL(rvalue);
 271 }
 272
 273 /** @} */
 274
 275
 276
 277 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 278 /* Public Functions                                                           */
 279 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 280
 281 /**
 282  * Show dialog, and ask user for input.
 283  */
 284
 285 IrrecoThemeButton *irreco_button_browser_dlg_run(GtkWindow *parent_window,
 286                                      IrrecoData *irreco_data,
 287                                      IrrecoTheme * irreco_theme)
 288 {
 289         IrrecoButtonBrowserDlg  *self;
 290         gint                    response;
 291         gboolean                loop    = TRUE;
 292         IrrecoThemeButton       *rvalue = NULL;
 293
 294         IRRECO_ENTER
 295
 296         self = (IrrecoButtonBrowserDlg *)irreco_button_browser_dlg_new(
 297                                                                 irreco_data,
 298                                                                 parent_window);
 299
 300         self->theme = irreco_theme;
 301
 302         /* init and start loading buttons */
 303         self->loader_index = 0;
 304         irreco_listbox_clear(IRRECO_LISTBOX(self->images));
 305         g_idle_add((GSourceFunc)_irreco_button_browser_dlg_loader_images, self);
 306
 307         do {
 308                 response = gtk_dialog_run(GTK_DIALOG(self));
 309
 310                 switch (response) {
 311
 312                 case GTK_RESPONSE_CANCEL:
 313                         IRRECO_DEBUG("GTK_RESPONSE_CANCEL\n");
 314                         rvalue = NULL;
 315                         loop = FALSE;
 316                         break;
 317
 318                 case GTK_RESPONSE_ACCEPT:
 319                         IRRECO_DEBUG("GTK_RESPONSE_ACCEPT\n");
 320                         /*rvalue = g_strdup(self->current_image->name->str);*/
 321                         rvalue = self->current_image;
 322                         loop = FALSE;
 323                         break;
 324
 325                 default:
 326                         IRRECO_DEBUG("Something went horribly wrong\n");
 327                         break;
 328                 }
 329         } while (loop);
 330
 331         gtk_widget_destroy(GTK_WIDGET(self));
 332
 333         IRRECO_RETURN_PTR(rvalue);
 334 }
 335
 336 /** @} */
 337
 338
 339
 340 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 341 /* Events and Callbacks                                                       */
 342 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 343
 344 /**
 345  * @name Events and Callbacks
 346  * @{
 347  */
 348
 349 /**
 350  * Respond to image selection change.
 351  *
 352  * This function will store selected button to self->current_image
 353  */
 354 static void irreco_button_browser_dlg_image_selection_changed(
 355                                                 GtkTreeSelection *selection,
 356                                                 IrrecoButtonBrowserDlg *self)
 357 {
 358         gint sel_index = -1;
 359         gchar *sel_label = NULL;
 360         IrrecoThemeButton *button = NULL;
 361
 362         IRRECO_ENTER
 363
 364         if (irreco_listbox_get_selection(IRRECO_LISTBOX(self->images),
 365                                 &sel_index, &sel_label, (gpointer *)&button)) {
 366                 self->current_image = button;
 367         } else {
 368                 self->current_image = NULL;
 369         }
 370
 371         g_free(sel_label);
 372         gtk_dialog_response(GTK_DIALOG(self), GTK_RESPONSE_ACCEPT);
 373
 374         IRRECO_RETURN
 375 }
 376
 377 /** @} */
 378
 379
 380
 381 /** @} */