git.sur5r.net Git - glabels/blob - glabels2/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 };
  50
  51 /*========================================================*/
  52 /* Private globals.                                       */
  53 /*========================================================*/
  54
  55
  56 /*========================================================*/
  57 /* Private function prototypes.                           */
  58 /*========================================================*/
  59
  60 static void       gl_view_barcode_finalize          (GObject          *object);
  61
  62 static GtkWidget *construct_properties_editor       (glViewObject     *view_object);
  63
  64 static void       update_object_from_editor_cb      (glObjectEditor   *editor,
  65                                                      glLabelObject    *object);
  66
  67 static void       update_editor_from_object_cb      (glLabelObject    *object,
  68                                                      glObjectEditor   *editor);
  69
  70 static void       update_editor_from_move_cb        (glLabelObject    *object,
  71                                                      gdouble           dx,
  72                                                      gdouble           dy,
  73                                                      glObjectEditor   *editor);
  74
  75 static void       update_editor_from_label_cb       (glLabel          *label,
  76                                                      glObjectEditor   *editor);
  77
  78 static gboolean   object_at                         (glViewObject     *view_object,
  79                                                      cairo_t          *cr,
  80                                                      gdouble           x,
  81                                                      gdouble           y);
  82
  83
  84
  85 \f
  86 /*****************************************************************************/
  87 /* Boilerplate object stuff.                                                 */
  88 /*****************************************************************************/
  89 G_DEFINE_TYPE (glViewBarcode, gl_view_barcode, GL_TYPE_VIEW_OBJECT);
  90
  91
  92 static void
  93 gl_view_barcode_class_init (glViewBarcodeClass *class)
  94 {
  95         GObjectClass      *object_class      = G_OBJECT_CLASS (class);
  96         glViewObjectClass *view_object_class = GL_VIEW_OBJECT_CLASS (class);
  97
  98         gl_debug (DEBUG_VIEW, "START");
  99
 100         gl_view_barcode_parent_class = g_type_class_peek_parent (class);
 101
 102         object_class->finalize = gl_view_barcode_finalize;
 103
 104         view_object_class->construct_editor = construct_properties_editor;
 105         view_object_class->object_at        = object_at;
 106
 107         gl_debug (DEBUG_VIEW, "END");
 108 }
 109
 110 static void
 111 gl_view_barcode_init (glViewBarcode *view_barcode)
 112 {
 113         gl_debug (DEBUG_VIEW, "START");
 114
 115         view_barcode->priv = g_new0 (glViewBarcodePrivate, 1);
 116
 117         gl_debug (DEBUG_VIEW, "END");
 118 }
 119
 120 static void
 121 gl_view_barcode_finalize (GObject *object)
 122 {
 123         glViewBarcode *view_barcode = GL_VIEW_BARCODE (object);
 124
 125         gl_debug (DEBUG_VIEW, "START");
 126
 127         g_return_if_fail (object && GL_IS_VIEW_BARCODE (object));
 128
 129         g_free (view_barcode->priv);
 130
 131         G_OBJECT_CLASS (gl_view_barcode_parent_class)->finalize (object);
 132
 133         gl_debug (DEBUG_VIEW, "END");
 134 }
 135
 136 /*****************************************************************************/
 137 /* NEW barcode object view.                                                  */
 138 /*****************************************************************************/
 139 glViewObject *
 140 gl_view_barcode_new (glLabelBarcode *object,
 141                      glView         *view)
 142 {
 143         glViewBarcode         *view_barcode;
 144
 145         gl_debug (DEBUG_VIEW, "START");
 146
 147         g_return_val_if_fail (object && GL_IS_LABEL_BARCODE (object), NULL);
 148         g_return_val_if_fail (view && GL_IS_VIEW (view), NULL);
 149
 150         view_barcode = g_object_new (gl_view_barcode_get_type(), NULL);
 151
 152         gl_view_object_set_object (GL_VIEW_OBJECT(view_barcode),
 153                                    GL_LABEL_OBJECT(object),
 154                                    GL_VIEW_OBJECT_HANDLES_BOX);
 155         gl_view_object_set_view (GL_VIEW_OBJECT(view_barcode), view);
 156
 157         gl_debug (DEBUG_VIEW, "END");
 158
 159         return GL_VIEW_OBJECT (view_barcode);
 160 }
 161
 162 /*****************************************************************************/
 163 /* Create a properties dialog for a barcode object.                          */
 164 /*****************************************************************************/
 165 static GtkWidget *
 166 construct_properties_editor (glViewObject *view_object)
 167 {
 168         GtkWidget          *editor;
 169         glViewBarcode      *view_bc = (glViewBarcode *)view_object;
 170         glLabelObject      *object;
 171
 172         gl_debug (DEBUG_VIEW, "START");
 173
 174         object = gl_view_object_get_object (GL_VIEW_OBJECT(view_bc));
 175
 176         /* Build editor. */
 177         editor = gl_object_editor_new (GL_STOCK_BARCODE, _("Barcode object properties"),
 178                                        GL_OBJECT_EDITOR_POSITION_PAGE,
 179                                        GL_OBJECT_EDITOR_SIZE_PAGE,
 180                                        GL_OBJECT_EDITOR_BC_PAGE,
 181                                        GL_OBJECT_EDITOR_DATA_PAGE,
 182                                        0);
 183
 184         /* Update */
 185         update_editor_from_label_cb (object->parent, GL_OBJECT_EDITOR(editor));
 186         update_editor_from_object_cb (object, GL_OBJECT_EDITOR(editor));
 187         update_editor_from_move_cb (object, 0, 0, GL_OBJECT_EDITOR(editor));
 188
 189         /* Connect signals. */
 190         g_signal_connect (G_OBJECT (editor), "changed",
 191                           G_CALLBACK(update_object_from_editor_cb), object);
 192         g_signal_connect (G_OBJECT (object), "changed",
 193                           G_CALLBACK (update_editor_from_object_cb), editor);
 194         g_signal_connect (G_OBJECT (object), "moved",
 195                           G_CALLBACK (update_editor_from_move_cb), editor);
 196         g_signal_connect (G_OBJECT (object->parent), "size_changed",
 197                           G_CALLBACK (update_editor_from_label_cb), editor);
 198         g_signal_connect (G_OBJECT (object->parent), "merge_changed",
 199                           G_CALLBACK (update_editor_from_label_cb), editor);
 200
 201         gl_debug (DEBUG_VIEW, "END");
 202
 203         return editor;
 204 }
 205
 206 /*---------------------------------------------------------------------------*/
 207 /* PRIVATE.  editor "changed" callback.                                      */
 208 /*---------------------------------------------------------------------------*/
 209 static void
 210 update_object_from_editor_cb (glObjectEditor *editor,
 211                               glLabelObject  *object)
 212 {
 213         gdouble            x, y, w, h;
 214         glTextNode        *text_node;
 215         gchar             *id;
 216         gboolean           text_flag, cs_flag;
 217         glColorNode       *color_node;
 218         guint              format_digits;
 219
 220         gl_debug (DEBUG_VIEW, "START");
 221
 222         g_signal_handlers_block_by_func (G_OBJECT(object),
 223                                          update_editor_from_object_cb,
 224                                          editor);
 225         g_signal_handlers_block_by_func (G_OBJECT(object),
 226                                          update_editor_from_move_cb,
 227                                          editor);
 228
 229
 230         gl_object_editor_get_position (editor, &x, &y);
 231         gl_label_object_set_position (object, x, y);
 232
 233         gl_object_editor_get_size (editor, &w, &h);
 234         gl_label_object_set_size (object, w, h);
 235
 236         text_node = gl_object_editor_get_data (editor);
 237         gl_label_barcode_set_data (GL_LABEL_BARCODE(object), text_node);
 238         gl_text_node_free (&text_node);
 239
 240         gl_object_editor_get_bc_style (editor, &id, &text_flag, &cs_flag, &format_digits);
 241         color_node = gl_object_editor_get_bc_color (editor);
 242         gl_label_barcode_set_props (GL_LABEL_BARCODE(object),
 243                                     id, text_flag, cs_flag, format_digits);
 244         gl_label_object_set_line_color (object, color_node);
 245         gl_color_node_free (&color_node);
 246         g_free (id);
 247
 248         g_signal_handlers_unblock_by_func (G_OBJECT(object),
 249                                            update_editor_from_object_cb,
 250                                            editor);
 251         g_signal_handlers_unblock_by_func (G_OBJECT(object),
 252                                            update_editor_from_move_cb,
 253                                            editor);
 254
 255         gl_debug (DEBUG_VIEW, "END");
 256 }
 257
 258 /*---------------------------------------------------------------------------*/
 259 /* PRIVATE. label object "changed" callback.                                 */
 260 /*---------------------------------------------------------------------------*/
 261 static void
 262 update_editor_from_object_cb (glLabelObject  *object,
 263                               glObjectEditor *editor)
 264 {
 265         gdouble            w, h;
 266         glTextNode        *text_node;
 267         gchar             *id;
 268         gboolean           text_flag, cs_flag;
 269         glColorNode       *color_node;
 270         glMerge           *merge;
 271         guint              format_digits;
 272
 273         gl_debug (DEBUG_VIEW, "START");
 274
 275         gl_label_object_get_size (object, &w, &h);
 276         gl_object_editor_set_size (editor, w, h);
 277
 278         merge = gl_label_get_merge (GL_LABEL(object->parent));
 279
 280         gl_label_barcode_get_props (GL_LABEL_BARCODE(object),
 281                                     &id, &text_flag, &cs_flag, &format_digits);
 282         color_node = gl_label_object_get_line_color (object);
 283         gl_object_editor_set_bc_style (editor, id, text_flag, cs_flag, format_digits);
 284         gl_object_editor_set_bc_color (editor, (merge != NULL), color_node);
 285         gl_color_node_free (&color_node);
 286         g_free (id);
 287
 288         text_node = gl_label_barcode_get_data (GL_LABEL_BARCODE(object));
 289         gl_object_editor_set_data (editor, (merge != NULL), text_node);
 290         gl_text_node_free (&text_node);
 291
 292
 293         gl_debug (DEBUG_VIEW, "END");
 294 }
 295
 296 /*---------------------------------------------------------------------------*/
 297 /* PRIVATE. label object "moved" callback.                                   */
 298 /*---------------------------------------------------------------------------*/
 299 static void
 300 update_editor_from_move_cb (glLabelObject    *object,
 301                             gdouble           dx,
 302                             gdouble           dy,
 303                             glObjectEditor   *editor)
 304 {
 305         gdouble            x, y;
 306
 307         gl_debug (DEBUG_VIEW, "START");
 308
 309         gl_label_object_get_position (object, &x, &y);
 310         gl_object_editor_set_position (editor, x, y);
 311
 312         gl_debug (DEBUG_VIEW, "END");
 313 }
 314
 315 /*---------------------------------------------------------------------------*/
 316 /* PRIVATE. label "changed" callback.                                        */
 317 /*---------------------------------------------------------------------------*/
 318 static void
 319 update_editor_from_label_cb (glLabel        *label,
 320                              glObjectEditor *editor)
 321 {
 322         gdouble            label_width, label_height;
 323         glMerge                    *merge;
 324
 325         gl_debug (DEBUG_VIEW, "START");
 326
 327         gl_label_get_size (label, &label_width, &label_height);
 328         gl_object_editor_set_max_position (GL_OBJECT_EDITOR (editor),
 329                                            label_width, label_height);
 330         gl_object_editor_set_max_size (GL_OBJECT_EDITOR (editor),
 331                                        label_width, label_height);
 332
 333         merge = gl_label_get_merge (label);
 334         gl_object_editor_set_key_names (editor, merge);
 335
 336         gl_debug (DEBUG_VIEW, "END");
 337 }
 338
 339 /*****************************************************************************/
 340 /* Is object at (x,y)?                                                       */
 341 /*****************************************************************************/
 342 static gboolean
 343 object_at (glViewObject  *view_object,
 344            cairo_t       *cr,
 345            gdouble        x,
 346            gdouble        y)
 347 {
 348         glLabelObject    *object;
 349         gdouble           w, h;
 350
 351         object = gl_view_object_get_object (view_object);
 352
 353         gl_label_object_get_size (object, &w, &h);
 354
 355         cairo_rectangle (cr, 0.0, 0.0, w, h);
 356
 357         if (cairo_in_fill (cr, x, y))
 358         {
 359                 return TRUE;
 360         }
 361
 362         return FALSE;
 363 }
 364
 365
 366 /*****************************************************************************/
 367 /* Return apropos cursor for create object mode.                             */
 368 /*****************************************************************************/
 369 GdkCursor *
 370 gl_view_barcode_get_create_cursor (void)
 371 {
 372         GdkCursor       *cursor = NULL;
 373         GdkPixmap       *pixmap_data, *pixmap_mask;
 374         GdkColor         fg = { 0, 0, 0, 0 };
 375         GdkColor         bg = { 0, 65535, 65535, 65535 };
 376
 377         gl_debug (DEBUG_VIEW, "START");
 378
 379         pixmap_data = gdk_bitmap_create_from_data (NULL,
 380                                                    (gchar *)cursor_barcode_bits,
 381                                                    cursor_barcode_width,
 382                                                    cursor_barcode_height);
 383         pixmap_mask = gdk_bitmap_create_from_data (NULL,
 384                                                    (gchar *)cursor_barcode_mask_bits,
 385                                                    cursor_barcode_mask_width,
 386                                                    cursor_barcode_mask_height);
 387         cursor = gdk_cursor_new_from_pixmap (pixmap_data, pixmap_mask, &fg,
 388                                              &bg, cursor_barcode_x_hot,
 389                                              cursor_barcode_y_hot);
 390
 391         gl_debug (DEBUG_VIEW, "END");
 392
 393         return cursor;
 394 }
 395
 396 /*****************************************************************************/
 397 /* Object creation handler: button press event.                              */
 398 /*****************************************************************************/
 399 void
 400 gl_view_barcode_create_button_press_event   (glView *view,
 401                                              gdouble x,
 402                                              gdouble y)
 403 {
 404         GObject             *object;
 405         glTextNode          *text_node;
 406         glColorNode         *line_color_node;
 407
 408         gl_view_unselect_all (view);
 409
 410         line_color_node = gl_color_node_new_default ();
 411
 412         object = gl_label_barcode_new (view->label);
 413         gl_label_object_set_position (GL_LABEL_OBJECT(object), x, y);
 414         text_node = gl_text_node_new_from_text ("123456789");
 415         gl_label_barcode_set_data (GL_LABEL_BARCODE(object), text_node);
 416         line_color_node->color = gl_color_set_opacity (gl_view_get_default_line_color(view), 0.5);
 417         gl_label_object_set_line_color (GL_LABEL_OBJECT(object),
 418                                         line_color_node);
 419
 420         gl_color_node_free (&line_color_node);
 421
 422         view->create_object = GL_LABEL_OBJECT (object);
 423         view->create_x0 = x;
 424         view->create_y0 = y;
 425 }
 426
 427 /*****************************************************************************/
 428 /* Object creation handler: motion event.                                    */
 429 /*****************************************************************************/
 430 void
 431 gl_view_barcode_create_motion_event         (glView *view,
 432                                              gdouble x,
 433                                              gdouble y)
 434 {
 435         gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object), x, y);
 436 }
 437
 438 /*****************************************************************************/
 439 /* Object creation handler: button relesase event.                           */
 440 /*****************************************************************************/
 441 void
 442 gl_view_barcode_create_button_release_event (glView *view,
 443                                              gdouble x,
 444                                              gdouble y)
 445 {
 446         glColorNode         *line_color_node;
 447
 448         line_color_node = gl_color_node_new_default ();
 449
 450         gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object), x, y);
 451         line_color_node->color = gl_view_get_default_line_color(view);
 452         gl_label_object_set_line_color (GL_LABEL_OBJECT(view->create_object), line_color_node);
 453         gl_color_node_free (&line_color_node);
 454 }
 455