git.sur5r.net Git - glabels/blob - src/view.h

   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.h:  GLabels View module header file
   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
  25 #ifndef __VIEW_H__
  26 #define __VIEW_H__
  27
  28 #include <gtk/gtkvbox.h>
  29
  30 #include "label-object.h"
  31
  32 typedef enum {
  33         GL_VIEW_MODE_ARROW,
  34         GL_VIEW_MODE_OBJECT_CREATE
  35 } glViewMode;
  36
  37 typedef enum {
  38         GL_VIEW_IDLE = 0,
  39         GL_VIEW_ARROW_SELECT_REGION,
  40         GL_VIEW_ARROW_MOVE,
  41         GL_VIEW_ARROW_RESIZE,
  42         GL_VIEW_CREATE_DRAG,
  43 } glViewState;
  44
  45 #define GL_TYPE_VIEW            (gl_view_get_type ())
  46 #define GL_VIEW(obj)            (GTK_CHECK_CAST((obj), GL_TYPE_VIEW, glView ))
  47 #define GL_VIEW_CLASS(klass)    (GTK_CHECK_CLASS_CAST ((klass), GL_TYPE_VIEW, glViewClass))
  48 #define GL_IS_VIEW(obj)         (GTK_CHECK_TYPE ((obj), GL_TYPE_VIEW))
  49 #define GL_IS_VIEW_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GL_TYPE_VIEW))
  50
  51 typedef struct _glView      glView;
  52 typedef struct _glViewClass glViewClass;
  53
  54 #include "view-object.h"
  55 #include "color.h"
  56
  57 struct _glView {
  58         GtkVBox            parent_widget;
  59
  60         glLabel           *label;
  61
  62         GtkWidget         *canvas;
  63         gdouble            zoom;
  64         gboolean           zoom_to_fit_flag;
  65         gdouble            home_scale;
  66         gdouble            x0, y0;
  67         gdouble            w, h;
  68
  69         gboolean           update_scheduled_flag;
  70         gboolean           grid_visible;
  71         gdouble            grid_spacing;
  72
  73         gboolean           markup_visible;
  74
  75         glViewMode         mode;
  76         glLabelObjectType  create_type;
  77         glViewState        state;
  78         gboolean           grabbed_flag;
  79
  80         /* GL_VIEW_ARROW_MOVE state */
  81         gdouble            move_last_x;
  82         gdouble            move_last_y;
  83
  84         /* GL_VIEW_ARROW_SELECT_REGION state */
  85         gboolean           select_region_visible;
  86         glLabelRegion      select_region;
  87
  88         /* GL_VIEW_ARROW_RESIZE state */
  89         glViewObject      *resize_object;
  90         glViewObjectHandle resize_handle;
  91         gboolean           resize_honor_aspect;
  92
  93         /* GL_VIEW_CREATE_DRAG state */
  94         glLabelObject     *create_object;
  95         gdouble            create_x0;
  96         gdouble            create_y0;
  97
  98         GList             *object_list;           /* glViewObjects */
  99         GList             *selected_object_list;  /* glViewObjects */
 100
 101         /* Clipboard selection stuff */
 102         gint               have_selection;
 103         glLabel           *selection_data;
 104         GtkWidget         *invisible;
 105
 106         /* Default object text properties */
 107         gchar             *default_font_family;
 108         gdouble            default_font_size;
 109         PangoWeight        default_font_weight;
 110         gboolean           default_font_italic_flag;
 111         guint              default_text_color;
 112         PangoAlignment     default_text_alignment;
 113         gdouble            default_text_line_spacing;
 114
 115         /* Default object line properties */
 116         gdouble            default_line_width;
 117         guint              default_line_color;
 118
 119         /* Default object fill properties */
 120         guint              default_fill_color;
 121
 122 };
 123
 124 struct _glViewClass {
 125         GtkVBoxClass      parent_class;
 126
 127         /* Selection changed signal */
 128         void (*selection_changed) (glView   *view,
 129                                    gpointer  user_data);
 130
 131         /* Signal to launch a context menu */
 132         void (*context_menu_activate) (glView   *view,
 133                                        gint      button,
 134                                        guint32   activate_time,
 135                                        gpointer  user_data);
 136
 137         /* Signals to support a status bar */
 138         void (*zoom_changed)      (glView   *view,
 139                                    gdouble   zoom,
 140                                    gpointer  user_data);
 141         void (*pointer_moved)     (glView   *view,
 142                                    gdouble   x,
 143                                    gdouble   y,
 144                                    gpointer  user_data);
 145         void (*pointer_exit)      (glView   *view,
 146                                    gpointer  user_data);
 147         void (*mode_changed)      (glView   *view,
 148                                    gpointer  user_data);
 149 };
 150
 151 G_BEGIN_DECLS
 152
 153 GType      gl_view_get_type                (void) G_GNUC_CONST;
 154
 155 GtkWidget *gl_view_new                     (glLabel           *label);
 156
 157
 158 void       gl_view_update                  (glView            *view);
 159
 160 void       gl_view_update_region           (glView            *view,
 161                                             cairo_t           *cr,
 162                                             glLabelRegion     *region);
 163
 164 void       gl_view_show_grid               (glView            *view);
 165
 166 void       gl_view_hide_grid               (glView            *view);
 167
 168 void       gl_view_set_grid_spacing        (glView            *view,
 169                                             gdouble            spacing);
 170
 171 void       gl_view_show_markup             (glView            *view);
 172
 173 void       gl_view_hide_markup             (glView            *view);
 174
 175 void       gl_view_arrow_mode              (glView            *view);
 176
 177 void       gl_view_object_create_mode      (glView            *view,
 178                                             glLabelObjectType  type);
 179
 180
 181 void       gl_view_select_object           (glView            *view,
 182                                             glViewObject      *view_object);
 183
 184 void       gl_view_unselect_object         (glView            *view,
 185                                             glViewObject      *view_object);
 186
 187 void       gl_view_select_all              (glView            *view);
 188
 189 void       gl_view_unselect_all            (glView            *view);
 190
 191 void       gl_view_select_region           (glView            *view,
 192                                             glLabelRegion     *region);
 193
 194 gboolean   gl_view_is_object_selected      (glView            *view,
 195                                             glViewObject      *view_object);
 196
 197 gboolean   gl_view_is_selection_empty      (glView            *view);
 198
 199 gboolean   gl_view_is_selection_atomic     (glView            *view);
 200
 201 void       gl_view_delete_selection        (glView            *view);
 202
 203 GtkWidget *gl_view_get_editor              (glView            *view);
 204
 205 void       gl_view_raise_selection         (glView            *view);
 206
 207 void       gl_view_lower_selection         (glView            *view);
 208
 209 void       gl_view_rotate_selection        (glView            *view,
 210                                             gdouble            theta_degs);
 211
 212 void       gl_view_rotate_selection_left   (glView            *view);
 213
 214 void       gl_view_rotate_selection_right  (glView            *view);
 215
 216 void       gl_view_flip_selection_horiz    (glView            *view);
 217
 218 void       gl_view_flip_selection_vert     (glView            *view);
 219
 220 void       gl_view_align_selection_left    (glView            *view);
 221
 222 void       gl_view_align_selection_right   (glView            *view);
 223
 224 void       gl_view_align_selection_hcenter (glView            *view);
 225
 226 void       gl_view_align_selection_top     (glView            *view);
 227
 228 void       gl_view_align_selection_bottom  (glView            *view);
 229
 230 void       gl_view_align_selection_vcenter (glView            *view);
 231
 232 void       gl_view_center_selection_horiz  (glView            *view);
 233
 234 void       gl_view_center_selection_vert   (glView            *view);
 235
 236 void       gl_view_move_selection          (glView            *view,
 237                                             gdouble            dx,
 238                                             gdouble            dy);
 239
 240 gboolean   gl_view_can_selection_text             (glView           *view);
 241
 242 void       gl_view_set_selection_font_family      (glView           *view,
 243                                                    const gchar      *font_family);
 244
 245 void       gl_view_set_selection_font_size        (glView           *view,
 246                                                    gdouble           font_size);
 247
 248 void       gl_view_set_selection_font_weight      (glView           *view,
 249                                                    PangoWeight      font_weight);
 250
 251 void       gl_view_set_selection_text_line_spacing (glView           *view,
 252                                                    gdouble           text_line_spacing);
 253
 254 void       gl_view_set_selection_font_italic_flag (glView           *view,
 255                                                    gboolean          font_italic_flag);
 256
 257 void       gl_view_set_selection_text_alignment   (glView           *view,
 258                                                    PangoAlignment    text_alignment);
 259
 260 void       gl_view_set_selection_text_color       (glView           *view,
 261                                                    glColorNode      *text_color_node);
 262
 263 gboolean   gl_view_can_selection_fill             (glView           *view);
 264
 265 void       gl_view_set_selection_fill_color       (glView           *view,
 266                                                    glColorNode      *fill_color);
 267
 268 gboolean   gl_view_can_selection_line_color       (glView           *view);
 269
 270 void       gl_view_set_selection_line_color       (glView           *view,
 271                                                    glColorNode      *line_color_node);
 272
 273 gboolean   gl_view_can_selection_line_width       (glView           *view);
 274
 275 void       gl_view_set_selection_line_width       (glView           *view,
 276                                                    gdouble           line_width);
 277
 278
 279 void       gl_view_cut                     (glView            *view);
 280
 281 void       gl_view_copy                    (glView            *view);
 282
 283 void       gl_view_paste                   (glView            *view);
 284
 285
 286 void       gl_view_zoom_in                 (glView            *view);
 287
 288 void       gl_view_zoom_out                (glView            *view);
 289
 290 void       gl_view_zoom_to_fit             (glView            *view);
 291
 292 void       gl_view_set_zoom                (glView            *view,
 293                                             gdouble            zoom);
 294
 295 gdouble    gl_view_get_zoom                (glView            *view);
 296
 297 gboolean   gl_view_is_zoom_max             (glView            *view);
 298
 299 gboolean   gl_view_is_zoom_min             (glView            *view);
 300
 301
 302 void       gl_view_set_default_font_family      (glView            *view,
 303                                                  const gchar       *font_family);
 304
 305 void       gl_view_set_default_font_size        (glView            *view,
 306                                                  gdouble            font_size);
 307
 308 void       gl_view_set_default_font_weight      (glView            *view,
 309                                                  PangoWeight        font_weight);
 310
 311 void       gl_view_set_default_font_italic_flag (glView            *view,
 312                                                  gboolean           font_italic_flag);
 313
 314 void       gl_view_set_default_text_color       (glView            *view,
 315                                                  guint              text_color);
 316
 317 void       gl_view_set_default_text_alignment   (glView            *view,
 318                                                  PangoAlignment     text_alignment);
 319
 320 void       gl_view_set_default_line_width       (glView            *view,
 321                                                  gdouble            line_width);
 322
 323 void       gl_view_set_default_line_color       (glView            *view,
 324                                                  guint              line_color);
 325
 326 void       gl_view_set_default_fill_color       (glView            *view,
 327                                                  guint              fill_color);
 328 void       gl_view_set_default_text_line_spacing (glView            *view,
 329                                                  gdouble            text_line_spacing);
 330
 331
 332
 333 gchar           *gl_view_get_default_font_family      (glView            *view);
 334
 335 gdouble          gl_view_get_default_font_size        (glView            *view);
 336
 337 PangoWeight      gl_view_get_default_font_weight      (glView            *view);
 338
 339 gboolean         gl_view_get_default_font_italic_flag (glView            *view);
 340
 341 guint            gl_view_get_default_text_color       (glView            *view);
 342
 343 PangoAlignment   gl_view_get_default_text_alignment   (glView            *view);
 344
 345 gdouble          gl_view_get_default_text_line_spacing (glView            *view);
 346
 347 gdouble          gl_view_get_default_line_width       (glView            *view);
 348
 349 guint            gl_view_get_default_line_color       (glView            *view);
 350
 351 guint            gl_view_get_default_fill_color       (glView            *view);
 352
 353
 354
 355 G_END_DECLS
 356
 357 #endif