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   1 /*
   2  *  label-object.h
   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 #ifndef __LABEL_OBJECT_H__
  22 #define __LABEL_OBJECT_H__
  23
  24 #include <glib-object.h>
  25 #include <gtk/gtk.h>
  26 #include <pango/pango.h>
  27 #include <cairo.h>
  28
  29 G_BEGIN_DECLS
  30
  31
  32 typedef enum {
  33         GL_LABEL_OBJECT_TEXT,
  34         GL_LABEL_OBJECT_BOX,
  35         GL_LABEL_OBJECT_LINE,
  36         GL_LABEL_OBJECT_ELLIPSE,
  37         GL_LABEL_OBJECT_IMAGE,
  38         GL_LABEL_OBJECT_BARCODE,
  39         GL_LABEL_OBJECT_N_TYPES
  40 } glLabelObjectType;
  41
  42
  43 typedef enum {
  44         GL_LABEL_OBJECT_HANDLE_NONE = 0,
  45         GL_LABEL_OBJECT_HANDLE_N,
  46         GL_LABEL_OBJECT_HANDLE_E,
  47         GL_LABEL_OBJECT_HANDLE_W,
  48         GL_LABEL_OBJECT_HANDLE_S,
  49         GL_LABEL_OBJECT_HANDLE_NW,
  50         GL_LABEL_OBJECT_HANDLE_NE,
  51         GL_LABEL_OBJECT_HANDLE_SE,
  52         GL_LABEL_OBJECT_HANDLE_SW,
  53         GL_LABEL_OBJECT_HANDLE_P1,
  54         GL_LABEL_OBJECT_HANDLE_P2,
  55 } glLabelObjectHandle;
  56
  57
  58 #define GL_TYPE_LABEL_OBJECT              (gl_label_object_get_type ())
  59 #define GL_LABEL_OBJECT(obj)              (G_TYPE_CHECK_INSTANCE_CAST ((obj), GL_TYPE_LABEL_OBJECT, glLabelObject))
  60 #define GL_LABEL_OBJECT_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GL_TYPE_LABEL_OBJECT, glLabelObjectClass))
  61 #define GL_IS_LABEL_OBJECT(obj)           (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GL_TYPE_LABEL_OBJECT))
  62 #define GL_IS_LABEL_OBJECT_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GL_TYPE_LABEL_OBJECT))
  63 #define GL_LABEL_OBJECT_GET_CLASS(object) (G_TYPE_INSTANCE_GET_CLASS ((object), GL_TYPE_LABEL_OBJECT, glLabelObjectClass))
  64
  65
  66 typedef struct _glLabelObject          glLabelObject;
  67 typedef struct _glLabelObjectClass     glLabelObjectClass;
  68
  69 typedef struct _glLabelObjectPrivate   glLabelObjectPrivate;
  70
  71 #include "label.h"
  72 #include "color.h"
  73
  74 struct _glLabelObject {
  75         GObject               object;
  76
  77         glLabelObjectPrivate *priv;
  78 };
  79
  80 struct _glLabelObjectClass {
  81         GObjectClass          parent_class;
  82
  83         /*
  84          * Set/Get Methods
  85          */
  86
  87         void              (*set_size)             (glLabelObject     *object,
  88                                                    gdouble            w,
  89                                                    gdouble            h,
  90                                                    gboolean           checkpoint);
  91
  92         void              (*set_font_family)      (glLabelObject     *object,
  93                                                    const gchar       *font_family,
  94                                                    gboolean           checkpoint);
  95
  96         void              (*set_font_size)        (glLabelObject     *object,
  97                                                    gdouble            font_size,
  98                                                    gboolean           checkpoint);
  99
 100         void              (*set_font_weight)      (glLabelObject     *object,
 101                                                    PangoWeight        font_weight,
 102                                                    gboolean           checkpoint);
 103
 104         void              (*set_font_italic_flag) (glLabelObject     *object,
 105                                                    gboolean           font_italic_flag,
 106                                                    gboolean           checkpoint);
 107
 108         void              (*set_text_alignment)   (glLabelObject     *object,
 109                                                    PangoAlignment     text_alignment,
 110                                                    gboolean           checkpoint);
 111
 112         void              (*set_text_line_spacing)(glLabelObject     *object,
 113                                                    gdouble            text_line_spacing,
 114                                                    gboolean           checkpoint);
 115
 116         void              (*set_text_color)       (glLabelObject     *object,
 117                                                    glColorNode       *text_color_node,
 118                                                    gboolean           checkpoint);
 119
 120         void              (*set_fill_color)       (glLabelObject     *object,
 121                                                    glColorNode       *fill_color_node,
 122                                                    gboolean           checkpoint);
 123
 124         void              (*set_line_color)       (glLabelObject     *object,
 125                                                    glColorNode       *line_color_node,
 126                                                    gboolean           checkpoint);
 127
 128         void              (*set_line_width)       (glLabelObject     *object,
 129                                                    gdouble            line_width,
 130                                                    gboolean           checkpoint);
 131
 132         void              (*get_size)             (glLabelObject     *object,
 133                                                    gdouble           *w,
 134                                                    gdouble           *h);
 135
 136         gchar *           (*get_font_family)      (glLabelObject     *object);
 137
 138         gdouble           (*get_font_size)        (glLabelObject     *object);
 139
 140         PangoWeight       (*get_font_weight)      (glLabelObject     *object);
 141
 142         gboolean          (*get_font_italic_flag) (glLabelObject     *object);
 143
 144         PangoAlignment    (*get_text_alignment)   (glLabelObject     *object);
 145
 146         gdouble           (*get_text_line_spacing) (glLabelObject    *object);
 147
 148         glColorNode *     (*get_text_color)       (glLabelObject     *object);
 149
 150         glColorNode *     (*get_fill_color)       (glLabelObject     *object);
 151
 152         glColorNode *     (*get_line_color)       (glLabelObject     *object);
 153
 154         gdouble           (*get_line_width)       (glLabelObject     *object);
 155
 156         void              (*copy)                 (glLabelObject     *dst_object
 157 ,
 158                                                    glLabelObject     *src_object);
 159
 160         /*
 161          * Draw methods
 162          */
 163         void        (*draw_shadow)      (glLabelObject *object,
 164                                          cairo_t       *cr,
 165                                          gboolean       screen_flag,
 166                                          glMergeRecord *record);
 167
 168         void        (*draw_object)      (glLabelObject *object,
 169                                          cairo_t       *cr,
 170                                          gboolean       screen_flag,
 171                                          glMergeRecord *record);
 172
 173         void        (*draw_handles)     (glLabelObject *object,
 174                                          cairo_t       *cr);
 175
 176         /*
 177          * Cairo context query methods
 178          */
 179         gboolean            (*object_at) (glLabelObject     *object,
 180                                           cairo_t           *cr,
 181                                           gdouble            x_pixels,
 182                                           gdouble            y_pixels);
 183
 184         glLabelObjectHandle (*handle_at) (glLabelObject     *object,
 185                                           cairo_t           *cr,
 186                                           gdouble            x_pixels,
 187                                           gdouble            y_pixels);
 188
 189
 190         /*
 191          * Signals
 192          */
 193
 194         void        (*changed) (glLabelObject *object,
 195                                 gpointer       user_data);
 196
 197 };
 198
 199
 200
 201 GType          gl_label_object_get_type              (void) G_GNUC_CONST;
 202
 203 GObject       *gl_label_object_new                   (glLabel           *label);
 204
 205
 206 glLabelObject *gl_label_object_dup                   (glLabelObject     *src_object,
 207                                                       glLabel           *label);
 208
 209
 210 void           gl_label_object_emit_changed          (glLabelObject     *object);
 211
 212 void           gl_label_object_set_parent            (glLabelObject     *object,
 213                                                       glLabel           *label);
 214
 215 glLabel       *gl_label_object_get_parent            (glLabelObject     *object);
 216
 217
 218 void           gl_label_object_select                (glLabelObject     *object);
 219 void           gl_label_object_unselect              (glLabelObject     *object);
 220 gboolean       gl_label_object_is_selected           (glLabelObject     *object);
 221
 222 void           gl_label_object_set_name              (glLabelObject     *object,
 223                                                       gchar             *name);
 224
 225 gchar         *gl_label_object_get_name              (glLabelObject     *object);
 226
 227
 228 void           gl_label_object_set_position          (glLabelObject     *object,
 229                                                       gdouble            x,
 230                                                       gdouble            y,
 231                                                       gboolean           checkpoint);
 232
 233 void           gl_label_object_set_position_relative (glLabelObject     *object,
 234                                                       gdouble            dx,
 235                                                       gdouble            dy,
 236                                                       gboolean           checkpoint);
 237
 238 void           gl_label_object_set_size              (glLabelObject     *object,
 239                                                       gdouble            w,
 240                                                       gdouble            h,
 241                                                       gboolean           checkpoint);
 242
 243 void           gl_label_object_set_size_honor_aspect (glLabelObject     *object,
 244                                                       gdouble            w,
 245                                                       gdouble            h,
 246                                                       gboolean           checkpoint);
 247
 248 void           gl_label_object_set_font_family       (glLabelObject     *object,
 249                                                       const gchar       *font_family,
 250                                                       gboolean           checkpoint);
 251
 252 void           gl_label_object_set_font_size         (glLabelObject     *object,
 253                                                       gdouble            font_size,
 254                                                       gboolean           checkpoint);
 255
 256 void           gl_label_object_set_font_weight       (glLabelObject     *object,
 257                                                       PangoWeight        font_weight,
 258                                                       gboolean           checkpoint);
 259
 260 void           gl_label_object_set_font_italic_flag  (glLabelObject     *object,
 261                                                       gboolean           font_italic_flag,
 262                                                       gboolean           checkpoint);
 263
 264 void           gl_label_object_set_text_alignment    (glLabelObject     *object,
 265                                                       PangoAlignment     text_alignment,
 266                                                       gboolean           checkpoint);
 267
 268 void           gl_label_object_set_text_color        (glLabelObject     *object,
 269                                                       glColorNode       *text_color_node,
 270                                                       gboolean           checkpoint);
 271
 272 void           gl_label_object_set_text_line_spacing (glLabelObject     *object,
 273                                                       gdouble            text_line_spacing,
 274                                                       gboolean           checkpoint);
 275
 276 void           gl_label_object_set_fill_color        (glLabelObject     *object,
 277                                                       glColorNode       *fill_color_node,
 278                                                       gboolean           checkpoint);
 279
 280 void           gl_label_object_set_line_color        (glLabelObject     *object,
 281                                                       glColorNode       *line_color_node,
 282                                                       gboolean           checkpoint);
 283
 284 void           gl_label_object_set_line_width        (glLabelObject     *object,
 285                                                       gdouble            line_width,
 286                                                       gboolean           checkpoint);
 287
 288
 289 void           gl_label_object_set_shadow_state      (glLabelObject     *object,
 290                                                       gboolean           state,
 291                                                       gboolean           checkpoint);
 292
 293 void           gl_label_object_set_shadow_offset     (glLabelObject     *object,
 294                                                       gdouble            x,
 295                                                       gdouble            y,
 296                                                       gboolean           checkpoint);
 297
 298 void           gl_label_object_set_shadow_color      (glLabelObject     *object,
 299                                                       glColorNode       *color_node,
 300                                                       gboolean           checkpoint);
 301
 302 void           gl_label_object_set_shadow_opacity    (glLabelObject     *object,
 303                                                       gdouble            alpha,
 304                                                       gboolean           checkpoint);
 305
 306
 307 void           gl_label_object_flip_horiz            (glLabelObject     *object);
 308
 309 void           gl_label_object_flip_vert             (glLabelObject     *object);
 310
 311 void           gl_label_object_rotate                (glLabelObject     *object,
 312                                                       gdouble            theta_degs);
 313
 314 void           gl_label_object_set_matrix            (glLabelObject     *object,
 315                                                       cairo_matrix_t    *matrix);
 316
 317
 318 void           gl_label_object_get_position          (glLabelObject     *object,
 319                                                       gdouble           *x,
 320                                                       gdouble           *y);
 321
 322 void           gl_label_object_get_size              (glLabelObject     *object,
 323                                                       gdouble           *w,
 324                                                       gdouble           *h);
 325
 326 void           gl_label_object_get_raw_size          (glLabelObject     *object,
 327                                                       gdouble           *w,
 328                                                       gdouble           *h);
 329
 330 void           gl_label_object_get_extent            (glLabelObject     *object,
 331                                                       glLabelRegion     *region);
 332
 333 gboolean       gl_label_object_can_text              (glLabelObject     *object);
 334
 335
 336 gchar         *gl_label_object_get_font_family       (glLabelObject     *object);
 337
 338 gdouble        gl_label_object_get_font_size         (glLabelObject     *object);
 339
 340 PangoWeight    gl_label_object_get_font_weight       (glLabelObject     *object);
 341
 342 gboolean       gl_label_object_get_font_italic_flag  (glLabelObject     *object);
 343
 344 PangoAlignment gl_label_object_get_text_alignment    (glLabelObject     *object);
 345
 346 gdouble        gl_label_object_get_text_line_spacing (glLabelObject     *object);
 347
 348 glColorNode   *gl_label_object_get_text_color        (glLabelObject     *object);
 349
 350
 351 gboolean       gl_label_object_can_fill              (glLabelObject     *object);
 352
 353 glColorNode*   gl_label_object_get_fill_color        (glLabelObject     *object);
 354
 355
 356 gboolean       gl_label_object_can_line_color        (glLabelObject     *object);
 357
 358 glColorNode   *gl_label_object_get_line_color        (glLabelObject     *object);
 359
 360 gboolean       gl_label_object_can_line_width        (glLabelObject     *object);
 361
 362 gdouble        gl_label_object_get_line_width        (glLabelObject     *object);
 363
 364
 365 void           gl_label_object_get_matrix            (glLabelObject     *object,
 366                                                       cairo_matrix_t    *matrix);
 367
 368 gboolean       gl_label_object_get_shadow_state      (glLabelObject     *object);
 369
 370 void           gl_label_object_get_shadow_offset     (glLabelObject     *object,
 371                                                       gdouble           *x,
 372                                                       gdouble           *y);
 373
 374 glColorNode*   gl_label_object_get_shadow_color      (glLabelObject     *object);
 375
 376 gdouble        gl_label_object_get_shadow_opacity    (glLabelObject     *object);
 377
 378
 379 void           gl_label_object_draw                  (glLabelObject     *object,
 380                                                       cairo_t           *cr,
 381                                                       gboolean           screen_flag,
 382                                                       glMergeRecord     *record);
 383
 384 gboolean       gl_label_object_is_located_at         (glLabelObject     *object,
 385                                                       cairo_t           *cr,
 386                                                       gdouble            x_pixels,
 387                                                       gdouble            y_pixels);
 388
 389 void           gl_label_object_draw_handles          (glLabelObject     *object,
 390                                                       cairo_t           *cr);
 391
 392 glLabelObjectHandle gl_label_object_handle_at        (glLabelObject     *object,
 393                                                       cairo_t           *cr,
 394                                                       gdouble            x_pixels,
 395                                                       gdouble            y_pixels);
 396
 397
 398 /*
 399  * Specific handle drawing methods.
 400  */
 401 void           gl_label_object_draw_handles_box      (glLabelObject     *object,
 402                                                       cairo_t           *cr);
 403
 404 void           gl_label_object_draw_handles_line     (glLabelObject     *object,
 405                                                       cairo_t           *cr);
 406
 407
 408 /*
 409  * Specific handle query methods.
 410  */
 411 glLabelObjectHandle gl_label_object_box_handle_at    (glLabelObject     *object,
 412                                                       cairo_t           *cr,
 413                                                       gdouble            x,
 414                                                       gdouble            y);
 415
 416 glLabelObjectHandle gl_label_object_line_handle_at   (glLabelObject     *object,
 417                                                       cairo_t           *cr,
 418                                                       gdouble            x,
 419                                                       gdouble            y);
 420
 421
 422
 423 G_END_DECLS
 424
 425 #endif /* __LABEL_OBJECT_H__ */
 426
 427
 428
 429
 430 /*
 431  * Local Variables:       -- emacs
 432  * mode: C                -- emacs
 433  * c-basic-offset: 8      -- emacs
 434  * tab-width: 8           -- emacs
 435  * indent-tabs-mode: nil  -- emacs
 436  * End:                   -- emacs
 437  */