git.sur5r.net Git - glabels/blob - src/view-barcode.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
   2
   3 /*
   4  *  (GLABELS) Label and Business Card Creation program for GNOME
   5  *
   6  *  view_barcode.c:  GLabels label barcode object view
   7  *
   8  *  Copyright (C) 2001-2007  Jim Evins <evins@snaught.com>.
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with this program; if not, write to the Free Software
  22  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  23  */
  24 #include <config.h>
  25
  26 #include "view-barcode.h"
  27
  28 #include <glib/gi18n.h>
  29 #include <glib/gmem.h>
  30
  31 #include "color.h"
  32 #include "object-editor.h"
  33 #include "stock.h"
  34
  35 #include "pixmaps/cursor_barcode.xbm"
  36 #include "pixmaps/cursor_barcode_mask.xbm"
  37
  38 #include "debug.h"
  39
  40 /*========================================================*/
  41 /* Private macros and constants.                          */
  42 /*========================================================*/
  43
  44 /*========================================================*/
  45 /* Private types.                                         */
  46 /*========================================================*/
  47
  48 struct _glViewBarcodePrivate {
  49         int place_holder; /* Place holder for future private data. */
  50 };
  51
  52 /*========================================================*/
  53 /* Private globals.                                       */
  54 /*========================================================*/
  55
  56
  57 /*========================================================*/
  58 /* Private function prototypes.                           */
  59 /*========================================================*/
  60
  61 static void       gl_view_barcode_finalize          (GObject          *object);
  62
  63 static GtkWidget *construct_properties_editor       (glViewObject     *view_object);
  64
  65 static void       update_object_from_editor_cb      (glObjectEditor   *editor,
  66                                                      glLabelObject    *object);
  67
  68 static void       update_editor_from_object_cb      (glLabelObject    *object,
  69                                                      glObjectEditor   *editor);
  70
  71 static void       update_editor_from_move_cb        (glLabelObject    *object,
  72                                                      gdouble           dx,
  73                                                      gdouble           dy,
  74                                                      glObjectEditor   *editor);
  75
  76 static gboolean   object_at                         (glViewObject     *view_object,
  77                                                      cairo_t          *cr,
  78                                                      gdouble           x,
  79                                                      gdouble           y);
  80
  81
  82
  83 \f
  84 /*****************************************************************************/
  85 /* Boilerplate object stuff.                                                 */
  86 /*****************************************************************************/
  87 G_DEFINE_TYPE (glViewBarcode, gl_view_barcode, GL_TYPE_VIEW_OBJECT);
  88
  89
  90 static void
  91 gl_view_barcode_class_init (glViewBarcodeClass *class)
  92 {
  93         GObjectClass      *object_class      = G_OBJECT_CLASS (class);
  94         glViewObjectClass *view_object_class = GL_VIEW_OBJECT_CLASS (class);
  95
  96         gl_debug (DEBUG_VIEW, "START");
  97
  98         gl_view_barcode_parent_class = g_type_class_peek_parent (class);
  99
 100         object_class->finalize = gl_view_barcode_finalize;
 101
 102         view_object_class->construct_editor = construct_properties_editor;
 103         view_object_class->object_at        = object_at;
 104
 105         gl_debug (DEBUG_VIEW, "END");
 106 }
 107
 108 static void
 109 gl_view_barcode_init (glViewBarcode *view_barcode)
 110 {
 111         gl_debug (DEBUG_VIEW, "START");
 112
 113         view_barcode->priv = g_new0 (glViewBarcodePrivate, 1);
 114
 115         gl_debug (DEBUG_VIEW, "END");
 116 }
 117
 118 static void
 119 gl_view_barcode_finalize (GObject *object)
 120 {
 121         glViewBarcode *view_barcode = GL_VIEW_BARCODE (object);
 122
 123         gl_debug (DEBUG_VIEW, "START");
 124
 125         g_return_if_fail (object && GL_IS_VIEW_BARCODE (object));
 126
 127         g_free (view_barcode->priv);
 128
 129         G_OBJECT_CLASS (gl_view_barcode_parent_class)->finalize (object);
 130
 131         gl_debug (DEBUG_VIEW, "END");
 132 }
 133
 134 /*****************************************************************************/
 135 /* NEW barcode object view.                                                  */
 136 /*****************************************************************************/
 137 glViewObject *
 138 gl_view_barcode_new (glLabelBarcode *object,
 139                      glView         *view)
 140 {
 141         glViewBarcode         *view_barcode;
 142
 143         gl_debug (DEBUG_VIEW, "START");
 144
 145         g_return_val_if_fail (object && GL_IS_LABEL_BARCODE (object), NULL);
 146         g_return_val_if_fail (view && GL_IS_VIEW (view), NULL);
 147
 148         view_barcode = g_object_new (gl_view_barcode_get_type(), NULL);
 149
 150         gl_view_object_set_object (GL_VIEW_OBJECT(view_barcode),
 151                                    GL_LABEL_OBJECT(object),
 152                                    GL_VIEW_OBJECT_HANDLES_BOX);
 153         gl_view_object_set_view (GL_VIEW_OBJECT(view_barcode), view);
 154
 155         gl_debug (DEBUG_VIEW, "END");
 156
 157         return GL_VIEW_OBJECT (view_barcode);
 158 }
 159
 160 /*****************************************************************************/
 161 /* Create a properties dialog for a barcode object.                          */
 162 /*****************************************************************************/
 163 static GtkWidget *
 164 construct_properties_editor (glViewObject *view_object)
 165 {
 166         GtkWidget          *editor;
 167         glViewBarcode      *view_bc = (glViewBarcode *)view_object;
 168         glLabelObject      *object;
 169
 170         gl_debug (DEBUG_VIEW, "START");
 171
 172         object = gl_view_object_get_object (GL_VIEW_OBJECT(view_bc));
 173
 174         /* Build editor. */
 175         editor = gl_object_editor_new (GL_STOCK_BARCODE, _("Barcode object properties"),
 176                                        object->parent,
 177                                        GL_OBJECT_EDITOR_POSITION_PAGE,
 178                                        GL_OBJECT_EDITOR_SIZE_PAGE,
 179                                        GL_OBJECT_EDITOR_BC_PAGE,
 180                                        GL_OBJECT_EDITOR_DATA_PAGE,
 181                                        0);
 182
 183         /* Update */
 184         update_editor_from_object_cb (object, GL_OBJECT_EDITOR(editor));
 185         update_editor_from_move_cb (object, 0, 0, GL_OBJECT_EDITOR(editor));
 186
 187         /* Connect signals. */
 188         g_signal_connect (G_OBJECT (editor), "changed",
 189                           G_CALLBACK(update_object_from_editor_cb), object);
 190         g_signal_connect (G_OBJECT (object), "changed",
 191                           G_CALLBACK (update_editor_from_object_cb), editor);
 192         g_signal_connect (G_OBJECT (object), "moved",
 193                           G_CALLBACK (update_editor_from_move_cb), editor);
 194
 195         gl_debug (DEBUG_VIEW, "END");
 196
 197         return editor;
 198 }
 199
 200 /*---------------------------------------------------------------------------*/
 201 /* PRIVATE.  editor "changed" callback.                                      */
 202 /*---------------------------------------------------------------------------*/
 203 static void
 204 update_object_from_editor_cb (glObjectEditor *editor,
 205                               glLabelObject  *object)
 206 {
 207         gdouble            x, y, w, h;
 208         glTextNode        *text_node;
 209         gchar             *id;
 210         gboolean           text_flag, cs_flag;
 211         glColorNode       *color_node;
 212         guint              format_digits;
 213
 214         gl_debug (DEBUG_VIEW, "START");
 215
 216         g_signal_handlers_block_by_func (G_OBJECT(object),
 217                                          update_editor_from_object_cb,
 218                                          editor);
 219         g_signal_handlers_block_by_func (G_OBJECT(object),
 220                                          update_editor_from_move_cb,
 221                                          editor);
 222
 223
 224         gl_object_editor_get_position (editor, &x, &y);
 225         gl_label_object_set_position (object, x, y);
 226
 227         gl_object_editor_get_size (editor, &w, &h);
 228         gl_label_object_set_size (object, w, h);
 229
 230         text_node = gl_object_editor_get_data (editor);
 231         gl_label_barcode_set_data (GL_LABEL_BARCODE(object), text_node);
 232         gl_text_node_free (&text_node);
 233
 234         gl_object_editor_get_bc_style (editor, &id, &text_flag, &cs_flag, &format_digits);
 235         color_node = gl_object_editor_get_bc_color (editor);
 236         gl_label_barcode_set_props (GL_LABEL_BARCODE(object),
 237                                     id, text_flag, cs_flag, format_digits);
 238         gl_label_object_set_line_color (object, color_node);
 239         gl_color_node_free (&color_node);
 240         g_free (id);
 241
 242         g_signal_handlers_unblock_by_func (G_OBJECT(object),
 243                                            update_editor_from_object_cb,
 244                                            editor);
 245         g_signal_handlers_unblock_by_func (G_OBJECT(object),
 246                                            update_editor_from_move_cb,
 247                                            editor);
 248
 249         gl_debug (DEBUG_VIEW, "END");
 250 }
 251
 252 /*---------------------------------------------------------------------------*/
 253 /* PRIVATE. label object "changed" callback.                                 */
 254 /*---------------------------------------------------------------------------*/
 255 static void
 256 update_editor_from_object_cb (glLabelObject  *object,
 257                               glObjectEditor *editor)
 258 {
 259         gdouble            w, h;
 260         glTextNode        *text_node;
 261         gchar             *id;
 262         gboolean           text_flag, cs_flag;
 263         glColorNode       *color_node;
 264         glMerge           *merge;
 265         guint              format_digits;
 266
 267         gl_debug (DEBUG_VIEW, "START");
 268
 269         gl_label_object_get_size (object, &w, &h);
 270         gl_object_editor_set_size (editor, w, h);
 271
 272         merge = gl_label_get_merge (GL_LABEL(object->parent));
 273
 274         gl_label_barcode_get_props (GL_LABEL_BARCODE(object),
 275                                     &id, &text_flag, &cs_flag, &format_digits);
 276         color_node = gl_label_object_get_line_color (object);
 277         gl_object_editor_set_bc_style (editor, id, text_flag, cs_flag, format_digits);
 278         gl_object_editor_set_bc_color (editor, (merge != NULL), color_node);
 279         gl_color_node_free (&color_node);
 280         g_free (id);
 281
 282         text_node = gl_label_barcode_get_data (GL_LABEL_BARCODE(object));
 283         gl_object_editor_set_data (editor, (merge != NULL), text_node);
 284         gl_text_node_free (&text_node);
 285
 286
 287         gl_debug (DEBUG_VIEW, "END");
 288 }
 289
 290 /*---------------------------------------------------------------------------*/
 291 /* PRIVATE. label object "moved" callback.                                   */
 292 /*---------------------------------------------------------------------------*/
 293 static void
 294 update_editor_from_move_cb (glLabelObject    *object,
 295                             gdouble           dx,
 296                             gdouble           dy,
 297                             glObjectEditor   *editor)
 298 {
 299         gdouble            x, y;
 300
 301         gl_debug (DEBUG_VIEW, "START");
 302
 303         gl_label_object_get_position (object, &x, &y);
 304         gl_object_editor_set_position (editor, x, y);
 305
 306         gl_debug (DEBUG_VIEW, "END");
 307 }
 308
 309 /*****************************************************************************/
 310 /* Is object at (x,y)?                                                       */
 311 /*****************************************************************************/
 312 static gboolean
 313 object_at (glViewObject  *view_object,
 314            cairo_t       *cr,
 315            gdouble        x,
 316            gdouble        y)
 317 {
 318         glLabelObject    *object;
 319         gdouble           w, h;
 320
 321         object = gl_view_object_get_object (view_object);
 322
 323         gl_label_object_get_size (object, &w, &h);
 324
 325         cairo_rectangle (cr, 0.0, 0.0, w, h);
 326
 327         if (cairo_in_fill (cr, x, y))
 328         {
 329                 return TRUE;
 330         }
 331
 332         return FALSE;
 333 }
 334
 335
 336 /*****************************************************************************/
 337 /* Return apropos cursor for create object mode.                             */
 338 /*****************************************************************************/
 339 GdkCursor *
 340 gl_view_barcode_get_create_cursor (void)
 341 {
 342         GdkCursor       *cursor = NULL;
 343         GdkPixmap       *pixmap_data, *pixmap_mask;
 344         GdkColor         fg = { 0, 0, 0, 0 };
 345         GdkColor         bg = { 0, 65535, 65535, 65535 };
 346
 347         gl_debug (DEBUG_VIEW, "START");
 348
 349         pixmap_data = gdk_bitmap_create_from_data (NULL,
 350                                                    (gchar *)cursor_barcode_bits,
 351                                                    cursor_barcode_width,
 352                                                    cursor_barcode_height);
 353         pixmap_mask = gdk_bitmap_create_from_data (NULL,
 354                                                    (gchar *)cursor_barcode_mask_bits,
 355                                                    cursor_barcode_mask_width,
 356                                                    cursor_barcode_mask_height);
 357         cursor = gdk_cursor_new_from_pixmap (pixmap_data, pixmap_mask, &fg,
 358                                              &bg, cursor_barcode_x_hot,
 359                                              cursor_barcode_y_hot);
 360
 361         gl_debug (DEBUG_VIEW, "END");
 362
 363         return cursor;
 364 }
 365
 366 /*****************************************************************************/
 367 /* Object creation handler: button press event.                              */
 368 /*****************************************************************************/
 369 void
 370 gl_view_barcode_create_button_press_event   (glView *view,
 371                                              gdouble x,
 372                                              gdouble y)
 373 {
 374         GObject             *object;
 375         glTextNode          *text_node;
 376         glColorNode         *line_color_node;
 377
 378         gl_view_unselect_all (view);
 379
 380         line_color_node = gl_color_node_new_default ();
 381
 382         object = gl_label_barcode_new (view->label);
 383         gl_label_object_set_position (GL_LABEL_OBJECT(object), x, y);
 384         text_node = gl_text_node_new_from_text ("123456789");
 385         gl_label_barcode_set_data (GL_LABEL_BARCODE(object), text_node);
 386         line_color_node->color = gl_color_set_opacity (gl_view_get_default_line_color(view), 0.5);
 387         gl_label_object_set_line_color (GL_LABEL_OBJECT(object),
 388                                         line_color_node);
 389
 390         gl_color_node_free (&line_color_node);
 391
 392         view->create_object = GL_LABEL_OBJECT (object);
 393         view->create_x0 = x;
 394         view->create_y0 = y;
 395 }
 396
 397 /*****************************************************************************/
 398 /* Object creation handler: motion event.                                    */
 399 /*****************************************************************************/
 400 void
 401 gl_view_barcode_create_motion_event         (glView *view,
 402                                              gdouble x,
 403                                              gdouble y)
 404 {
 405         gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object), x, y);
 406 }
 407
 408 /*****************************************************************************/
 409 /* Object creation handler: button relesase event.                           */
 410 /*****************************************************************************/
 411 void
 412 gl_view_barcode_create_button_release_event (glView *view,
 413                                              gdouble x,
 414                                              gdouble y)
 415 {
 416         glColorNode         *line_color_node;
 417
 418         line_color_node = gl_color_node_new_default ();
 419
 420         gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object), x, y);
 421         line_color_node->color = gl_view_get_default_line_color(view);
 422         gl_label_object_set_line_color (GL_LABEL_OBJECT(view->create_object), line_color_node);
 423         gl_color_node_free (&line_color_node);
 424 }
 425