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