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 "handle.h" 27 #include "connectionpoint.h" 28 #include "display.h" 29 #include "diagramdata.h" 30 #include "undo.h" 31 #include "filter.h" 32 #include "menus.h" 33 #include "diagrid.h" 34 35 GType diagram_get_type (void) G_GNUC_CONST; 36 37 #define DIA_TYPE_DIAGRAM (diagram_get_type ()) 38 #define DIA_DIAGRAM(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), DIA_TYPE_DIAGRAM, Diagram)) 39 #define DIA_DIAGRAM_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), DIA_TYPE_DIAGRAM, DiagramClass)) 40 #define DIA_IS_DIAGRAM(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), DIA_TYPE_DIAGRAM)) 41 #define DIA_DIAGRAM_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), DIA_TYPE_DIAGRAM, DiagramClass)) 42 43 struct _Diagram { 44 DiagramData parent_instance; 45 46 char *filename; 47 int unsaved; /* True if diagram is created but not saved.*/ 48 gboolean is_default; /* True if the diagram was created as the default.*/ 49 int mollified; 50 gboolean autosaved; /* True if the diagram is autosaved since last mod */ 51 char *autosavefilename; /* Holds the name of the current autosave file 52 * for this diagram, or NULL. */ 53 54 Color pagebreak_color; /*!< just to show page breaks */ 55 DiaGrid grid; /*!< the display grid */ 56 57 /*! almost completely unused guides (load and save code is there) */ 58 struct { 59 /* sorted arrays of the guides for the diagram */ 60 real *hguides, *vguides; 61 guint nhguides, nvguides; 62 } guides; 63 64 DiagramData *data; /*! just for compatibility, now that the Diagram _is_ and not _has_ DiagramData */ 65 66 GSList *displays; /* List of all displays showing this diagram */ 67 68 UndoStack *undo; 69 }; 70 71 typedef struct _DiagramClass { 72 DiagramDataClass parent_class; 73 74 /* signals */ 75 void (* removed) (Diagram*); 76 void (* selection_changed) (Diagram*, int); 77 78 } DiagramClass; 79 80 GList *dia_open_diagrams(void); /* Read only! */ 81 82 Diagram *diagram_load(const char *filename, DiaImportFilter *ifilter); 83 int diagram_load_into (Diagram *dest, const char *filename, DiaImportFilter *ifilter); 84 Diagram *new_diagram(const char *filename); /*Note: filename is copied*/ 85 /** Perform updates related to getting a new current diagram */ 86 void diagram_set_current(Diagram *diagram); 87 void diagram_destroy(Diagram *dia); 88 gboolean diagram_is_modified(Diagram *dia); 89 void diagram_modified(Diagram *dia); 90 void diagram_set_modified(Diagram *dia, int modified); 91 void diagram_add_ddisplay(Diagram *dia, DDisplay *ddisp); 92 void diagram_remove_ddisplay(Diagram *dia, DDisplay *ddisp); 93 void diagram_add_object(Diagram *dia, DiaObject *obj); 94 void diagram_add_object_list(Diagram *dia, GList *list); 95 void diagram_selected_break_external(Diagram *dia); 96 void diagram_remove_all_selected(Diagram *diagram, int delete_empty); 97 void diagram_unselect_object(Diagram *dia, DiaObject *obj); 98 void diagram_unselect_objects(Diagram *dia, GList *obj_list); 99 void diagram_select(Diagram *diagram, DiaObject *obj); 100 void diagram_select_list(Diagram *diagram, GList *list); 101 int diagram_is_selected(Diagram *diagram, DiaObject *obj); 102 GList *diagram_get_sorted_selected(Diagram *dia); 103 /* Removes selected from objects list, NOT selected list: */ 104 GList *diagram_get_sorted_selected_remove(Diagram *dia); 105 void diagram_add_update(Diagram *dia, Rectangle *update); 106 void diagram_add_update_with_border(Diagram *dia, Rectangle *update, 107 int pixel_border); 108 void diagram_add_update_all(Diagram *dia); 109 void diagram_add_update_all_all_and_flush(); 110 void diagram_add_update_pixels(Diagram *dia, Point *point, 111 int pixel_width, int pixel_height); 112 void diagram_flush(Diagram *dia); 113 DiaObject *diagram_find_clicked_object(Diagram *dia, 114 Point *pos, 115 real maxdist); 116 DiaObject *diagram_find_clicked_object_except(Diagram *dia, 117 Point *pos, 118 real maxdist, 119 GList *avoid); 120 real diagram_find_closest_handle(Diagram *dia, Handle **handle, 121 DiaObject **obj, Point *pos); 122 real diagram_find_closest_connectionpoint(Diagram *dia, 123 ConnectionPoint **cp, 124 Point *pos, 125 DiaObject *notthis); 126 void diagram_update_extents(Diagram *dia); 127 128 void diagram_update_menu_sensitivity (Diagram *dia); 129 130 void diagram_place_under_selected(Diagram *dia); 131 void diagram_place_over_selected(Diagram *dia); 132 void diagram_place_down_selected(Diagram *dia); 133 void diagram_place_up_selected(Diagram *dia); 134 void diagram_group_selected(Diagram *dia); 135 void diagram_ungroup_selected(Diagram *dia); 136 void diagram_parent_selected(Diagram *dia); 137 void diagram_unparent_selected(Diagram *dia); 138 void diagram_unparent_children_selected(Diagram *dia); 139 140 gboolean object_within_parent(DiaObject *obj, DiaObject *parent); 141 void diagram_set_filename(Diagram *dia, const char *filename); 142 gchar *diagram_get_name(Diagram *dia); 143 144 int diagram_modified_exists(void); 145 146 void diagram_redraw_all(void); 147 148 void diagram_object_modified(Diagram *dia, DiaObject *object); 149 150 #endif /* DIAGRAM_H */ 151 152 153