app/diagram.h

   1 /* Dia -- an diagram creation/manipulation program -*- c -*-
   2  * Copyright (C) 1998 Alexander Larsson
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  */
  18 #ifndef DIAGRAM_H
  19 #define DIAGRAM_H
  20
  21 #include <gtk/gtk.h>
  22
  23 typedef struct _Diagram Diagram;
  24
  25 #include "geometry.h"
  26 #include "object.h"
  27 #include "handle.h"
  28 #include "connectionpoint.h"
  29 #include "display.h"
  30 #include "diagramdata.h"
  31 #include "undo.h"
  32 #include "filter.h"
  33 #include "menus.h"
  34
  35 struct _Diagram {
  36   char *filename;
  37   int unsaved;            /* True if diagram is created but not saved.*/
  38   int modified;
  39   gboolean autosaved;     /* True if the diagram is autosaved since last mod */
  40   char *autosavefilename;     /* Holds the name of the current autosave file
  41                                * for this diagram, or NULL.  */
  42
  43   DiagramData *data;
  44
  45   guint display_count;
  46   GSList *displays;       /* List of all displays showing this diagram */
  47
  48   UndoStack *undo;
  49 };
  50
  51 struct _object_extent
  52 {
  53   Object *object;
  54   Rectangle *extent;
  55 };
  56
  57 typedef struct _object_extent object_extent;
  58
  59 GList *dia_open_diagrams(void); /* Read only! */
  60
  61 Diagram *diagram_load(const char *filename, DiaImportFilter *ifilter);
  62 int diagram_load_into (Diagram *dest, const char *filename, DiaImportFilter *ifilter);
  63 Diagram *new_diagram(const char *filename); /*Note: filename is copied*/
  64 void diagram_destroy(Diagram *dia);
  65 void diagram_modified(Diagram *dia);
  66 void diagram_set_modified(Diagram *dia, int modified);
  67 void diagram_add_ddisplay(Diagram *dia, DDisplay *ddisp);
  68 void diagram_remove_ddisplay(Diagram *dia, DDisplay *ddisp);
  69 void diagram_add_object(Diagram *dia, Object *obj);
  70 void diagram_add_object_list(Diagram *dia, GList *list);
  71 void diagram_selected_break_external(Diagram *dia);
  72 void diagram_remove_all_selected(Diagram *diagram, int delete_empty);
  73 void diagram_unselect_object(Diagram *diagram, Object *obj);
  74 void diagram_unselect_objects(Diagram *dia, GList *obj_list);
  75 void diagram_select(Diagram *diagram, Object *obj);
  76 void diagram_select_list(Diagram *diagram, GList *list);
  77 int diagram_is_selected(Diagram *diagram, Object *obj);
  78 GList *diagram_get_sorted_selected(Diagram *dia);
  79 /* Removes selected from objects list, NOT selected list: */
  80 GList *diagram_get_sorted_selected_remove(Diagram *dia);
  81 void diagram_add_update(Diagram *dia, Rectangle *update);
  82 void diagram_add_update_all(Diagram *dia);
  83 void diagram_add_update_all_all_and_flush();
  84 void diagram_add_update_pixels(Diagram *dia, Point *point,
  85                                int pixel_width, int pixel_height);
  86 void diagram_flush(Diagram *dia);
  87 Object *diagram_find_clicked_object(Diagram *dia,
  88                                     Point *pos,
  89                                     real maxdist);
  90 Object *diagram_find_clicked_object_except(Diagram *dia,
  91                                            Point *pos,
  92                                            real maxdist,
  93                                            GList *avoid);
  94 real diagram_find_closest_handle(Diagram *dia, Handle **handle,
  95                                  Object **obj, Point *pos);
  96 real diagram_find_closest_connectionpoint(Diagram *dia,
  97                                           ConnectionPoint **cp,
  98                                           Point *pos,
  99                                           Object *notthis);
 100 void diagram_update_extents(Diagram *dia);
 101 gint diagram_parent_sort_cb(object_extent ** a, object_extent **b);
 102
 103 void diagram_update_menu_sensitivity (Diagram *dia, UpdatableMenuItems *items);
 104 void diagram_update_menubar_sensitivity(Diagram *dia, UpdatableMenuItems *items);
 105 void diagram_update_popupmenu_sensitivity(Diagram *dia);
 106
 107 void diagram_place_under_selected(Diagram *dia);
 108 void diagram_place_over_selected(Diagram *dia);
 109 void diagram_place_down_selected(Diagram *dia);
 110 void diagram_place_up_selected(Diagram *dia);
 111 void diagram_group_selected(Diagram *dia);
 112 void diagram_ungroup_selected(Diagram *dia);
 113 void diagram_parent_selected(Diagram *dia);
 114 void diagram_unparent_selected(Diagram *dia);
 115 void diagram_unparent_children_selected(Diagram *dia);
 116
 117 void diagram_set_filename(Diagram *dia, char *filename);
 118 gchar *diagram_get_name(Diagram *dia);
 119
 120 int diagram_modified_exists(void);
 121
 122 void diagram_redraw_all(void);
 123
 124 void diagram_object_modified(Diagram *dia, Object *object);
 125
 126 #endif /* DIAGRAM_H */
 127
 128