git.sur5r.net Git - glabels/blob - glabels2/src/view-barcode.c

   1 /*
   2  *  view-barcode.c
   3  *  Copyright (C) 2001-2009  Jim Evins <evins@snaught.com>.
   4  *
   5  *  This file is part of gLabels.
   6  *
   7  *  gLabels is free software: you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation, either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  gLabels 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 gLabels.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <config.h>
  22
  23 #include "view-barcode.h"
  24
  25 #include <glib/gi18n.h>
  26 #include <glib.h>
  27
  28 #include "color.h"
  29 #include "object-editor.h"
  30 #include "stock.h"
  31
  32 #include "pixmaps/cursor_barcode.xbm"
  33 #include "pixmaps/cursor_barcode_mask.xbm"
  34
  35 #include "debug.h"
  36
  37
  38 /*========================================================*/
  39 /* Private macros and constants.                          */
  40 /*========================================================*/
  41
  42
  43 /*========================================================*/
  44 /* Private types.                                         */
  45 /*========================================================*/
  46
  47 struct _glViewBarcodePrivate {
  48 };
  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 /* Boilerplate object stuff.                                                 */
  83 /*****************************************************************************/
  84 G_DEFINE_TYPE (glViewBarcode, gl_view_barcode, GL_TYPE_VIEW_OBJECT);
  85
  86
  87 static void
  88 gl_view_barcode_class_init (glViewBarcodeClass *class)
  89 {
  90         GObjectClass      *object_class      = G_OBJECT_CLASS (class);
  91         glViewObjectClass *view_object_class = GL_VIEW_OBJECT_CLASS (class);
  92
  93         gl_debug (DEBUG_VIEW, "START");
  94
  95         gl_view_barcode_parent_class = g_type_class_peek_parent (class);
  96
  97         object_class->finalize = gl_view_barcode_finalize;
  98
  99         view_object_class->construct_editor = construct_properties_editor;
 100         view_object_class->object_at        = object_at;
 101
 102         gl_debug (DEBUG_VIEW, "END");
 103 }
 104
 105
 106 static void
 107 gl_view_barcode_init (glViewBarcode *view_barcode)
 108 {
 109         gl_debug (DEBUG_VIEW, "START");
 110
 111         view_barcode->priv = g_new0 (glViewBarcodePrivate, 1);
 112
 113         gl_debug (DEBUG_VIEW, "END");
 114 }
 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 /*****************************************************************************/
 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 /*****************************************************************************/
 162 /* Create a properties dialog for a barcode object.                          */
 163 /*****************************************************************************/
 164 static GtkWidget *
 165 construct_properties_editor (glViewObject *view_object)
 166 {
 167         GtkWidget          *editor;
 168         glViewBarcode      *view_bc = (glViewBarcode *)view_object;
 169         glLabelObject      *object;
 170
 171         gl_debug (DEBUG_VIEW, "START");
 172
 173         object = gl_view_object_get_object (GL_VIEW_OBJECT(view_bc));
 174
 175         /* Build editor. */
 176         editor = gl_object_editor_new (GL_STOCK_BARCODE, _("Barcode object properties"),
 177                                        object->parent,
 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_object_cb (object, GL_OBJECT_EDITOR(editor));
 186         update_editor_from_move_cb (object, 0, 0, GL_OBJECT_EDITOR(editor));
 187
 188         /* Connect signals. */
 189         g_signal_connect (G_OBJECT (editor), "changed",
 190                           G_CALLBACK(update_object_from_editor_cb), object);
 191         g_signal_connect (G_OBJECT (object), "changed",
 192                           G_CALLBACK (update_editor_from_object_cb), editor);
 193         g_signal_connect (G_OBJECT (object), "moved",
 194                           G_CALLBACK (update_editor_from_move_cb), editor);
 195
 196         gl_debug (DEBUG_VIEW, "END");
 197
 198         return editor;
 199 }
 200
 201
 202 /*---------------------------------------------------------------------------*/
 203 /* PRIVATE.  editor "changed" callback.                                      */
 204 /*---------------------------------------------------------------------------*/
 205 static void
 206 update_object_from_editor_cb (glObjectEditor *editor,
 207                               glLabelObject  *object)
 208 {
 209         gdouble            x, y, w, h;
 210         glTextNode        *text_node;
 211         gchar             *id;
 212         gboolean           text_flag, cs_flag;
 213         glColorNode       *color_node;
 214         guint              format_digits;
 215
 216         gl_debug (DEBUG_VIEW, "START");
 217
 218         g_signal_handlers_block_by_func (G_OBJECT(object),
 219                                          update_editor_from_object_cb,
 220                                          editor);
 221         g_signal_handlers_block_by_func (G_OBJECT(object),
 222                                          update_editor_from_move_cb,
 223                                          editor);
 224
 225
 226         gl_object_editor_get_position (editor, &x, &y);
 227         gl_label_object_set_position (object, x, y);
 228
 229         gl_object_editor_get_size (editor, &w, &h);
 230         gl_label_object_set_size (object, w, h);
 231
 232         text_node = gl_object_editor_get_data (editor);
 233         gl_label_barcode_set_data (GL_LABEL_BARCODE(object), text_node);
 234         gl_text_node_free (&text_node);
 235
 236         gl_object_editor_get_bc_style (editor, &id, &text_flag, &cs_flag, &format_digits);
 237         color_node = gl_object_editor_get_bc_color (editor);
 238         gl_label_barcode_set_props (GL_LABEL_BARCODE(object),
 239                                     id, text_flag, cs_flag, format_digits);
 240         gl_label_object_set_line_color (object, color_node);
 241         gl_color_node_free (&color_node);
 242         g_free (id);
 243
 244         g_signal_handlers_unblock_by_func (G_OBJECT(object),
 245                                            update_editor_from_object_cb,
 246                                            editor);
 247         g_signal_handlers_unblock_by_func (G_OBJECT(object),
 248                                            update_editor_from_move_cb,
 249                                            editor);
 250
 251         gl_debug (DEBUG_VIEW, "END");
 252 }
 253
 254
 255 /*---------------------------------------------------------------------------*/
 256 /* PRIVATE. label object "changed" callback.                                 */
 257 /*---------------------------------------------------------------------------*/
 258 static void
 259 update_editor_from_object_cb (glLabelObject  *object,
 260                               glObjectEditor *editor)
 261 {
 262         gdouble            w, h;
 263         glTextNode        *text_node;
 264         gchar             *id;
 265         gboolean           text_flag, cs_flag;
 266         glColorNode       *color_node;
 267         glMerge           *merge;
 268         guint              format_digits;
 269
 270         gl_debug (DEBUG_VIEW, "START");
 271
 272         gl_label_object_get_size (object, &w, &h);
 273         gl_object_editor_set_size (editor, w, h);
 274
 275         merge = gl_label_get_merge (GL_LABEL(object->parent));
 276
 277         gl_label_barcode_get_props (GL_LABEL_BARCODE(object),
 278                                     &id, &text_flag, &cs_flag, &format_digits);
 279         color_node = gl_label_object_get_line_color (object);
 280         gl_object_editor_set_bc_style (editor, id, text_flag, cs_flag, format_digits);
 281         gl_object_editor_set_bc_color (editor, (merge != NULL), color_node);
 282         gl_color_node_free (&color_node);
 283         g_free (id);
 284
 285         text_node = gl_label_barcode_get_data (GL_LABEL_BARCODE(object));
 286         gl_object_editor_set_data (editor, (merge != NULL), text_node);
 287         gl_text_node_free (&text_node);
 288
 289
 290         gl_debug (DEBUG_VIEW, "END");
 291 }
 292
 293
 294 /*---------------------------------------------------------------------------*/
 295 /* PRIVATE. label object "moved" callback.                                   */
 296 /*---------------------------------------------------------------------------*/
 297 static void
 298 update_editor_from_move_cb (glLabelObject    *object,
 299                             gdouble           dx,
 300                             gdouble           dy,
 301                             glObjectEditor   *editor)
 302 {
 303         gdouble            x, y;
 304
 305         gl_debug (DEBUG_VIEW, "START");
 306
 307         gl_label_object_get_position (object, &x, &y);
 308         gl_object_editor_set_position (editor, x, y);
 309
 310         gl_debug (DEBUG_VIEW, "END");
 311 }
 312
 313
 314 /*****************************************************************************/
 315 /* Is object at (x,y)?                                                       */
 316 /*****************************************************************************/
 317 static gboolean
 318 object_at (glViewObject  *view_object,
 319            cairo_t       *cr,
 320            gdouble        x,
 321            gdouble        y)
 322 {
 323         glLabelObject    *object;
 324         gdouble           w, h;
 325
 326         object = gl_view_object_get_object (view_object);
 327
 328         gl_label_object_get_size (object, &w, &h);
 329
 330         cairo_rectangle (cr, 0.0, 0.0, w, h);
 331
 332         if (cairo_in_fill (cr, x, y))
 333         {
 334                 return TRUE;
 335         }
 336
 337         return FALSE;
 338 }
 339
 340
 341 /*****************************************************************************/
 342 /* Return apropos cursor for create object mode.                             */
 343 /*****************************************************************************/
 344 GdkCursor *
 345 gl_view_barcode_get_create_cursor (void)
 346 {
 347         GdkCursor       *cursor = NULL;
 348         GdkPixmap       *pixmap_data, *pixmap_mask;
 349         GdkColor         fg = { 0, 0, 0, 0 };
 350         GdkColor         bg = { 0, 65535, 65535, 65535 };
 351
 352         gl_debug (DEBUG_VIEW, "START");
 353
 354         pixmap_data = gdk_bitmap_create_from_data (NULL,
 355                                                    (gchar *)cursor_barcode_bits,
 356                                                    cursor_barcode_width,
 357                                                    cursor_barcode_height);
 358         pixmap_mask = gdk_bitmap_create_from_data (NULL,
 359                                                    (gchar *)cursor_barcode_mask_bits,
 360                                                    cursor_barcode_mask_width,
 361                                                    cursor_barcode_mask_height);
 362         cursor = gdk_cursor_new_from_pixmap (pixmap_data, pixmap_mask, &fg,
 363                                              &bg, cursor_barcode_x_hot,
 364                                              cursor_barcode_y_hot);
 365
 366         gl_debug (DEBUG_VIEW, "END");
 367
 368         return cursor;
 369 }
 370
 371
 372 /*****************************************************************************/
 373 /* Object creation handler: button press event.                              */
 374 /*****************************************************************************/
 375 void
 376 gl_view_barcode_create_button_press_event   (glView *view,
 377                                              gdouble x,
 378                                              gdouble y)
 379 {
 380         GObject             *object;
 381         glTextNode          *text_node;
 382         glColorNode         *line_color_node;
 383
 384         gl_view_unselect_all (view);
 385
 386         line_color_node = gl_color_node_new_default ();
 387
 388         object = gl_label_barcode_new (view->label);
 389         gl_label_object_set_position (GL_LABEL_OBJECT(object), x, y);
 390         text_node = gl_text_node_new_from_text ("123456789");
 391         gl_label_barcode_set_data (GL_LABEL_BARCODE(object), text_node);
 392         line_color_node->color = gl_color_set_opacity (gl_view_get_default_line_color(view), 0.5);
 393         gl_label_object_set_line_color (GL_LABEL_OBJECT(object),
 394                                         line_color_node);
 395
 396         gl_color_node_free (&line_color_node);
 397
 398         view->create_object = GL_LABEL_OBJECT (object);
 399         view->create_x0 = x;
 400         view->create_y0 = y;
 401 }
 402
 403
 404 /*****************************************************************************/
 405 /* Object creation handler: motion event.                                    */
 406 /*****************************************************************************/
 407 void
 408 gl_view_barcode_create_motion_event         (glView *view,
 409                                              gdouble x,
 410                                              gdouble y)
 411 {
 412         gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object), x, y);
 413 }
 414
 415
 416 /*****************************************************************************/
 417 /* Object creation handler: button relesase event.                           */
 418 /*****************************************************************************/
 419 void
 420 gl_view_barcode_create_button_release_event (glView *view,
 421                                              gdouble x,
 422                                              gdouble y)
 423 {
 424         glColorNode         *line_color_node;
 425
 426         line_color_node = gl_color_node_new_default ();
 427
 428         gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object), x, y);
 429         line_color_node->color = gl_view_get_default_line_color(view);
 430         gl_label_object_set_line_color (GL_LABEL_OBJECT(view->create_object), line_color_node);
 431         gl_color_node_free (&line_color_node);
 432 }
 433
 434
 435
 436 /*
 437  * Local Variables:       -- emacs
 438  * mode: C                -- emacs
 439  * c-basic-offset: 8      -- emacs
 440  * tab-width: 8           -- emacs
 441  * indent-tabs-mode: nil  -- emacs
 442  * End:                   -- emacs
 443  */