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

   1 /*
   2  *  (GLABELS) Label and Business Card Creation program for GNOME
   3  *
   4  *  view.h:  GLabels View module header file
   5  *
   6  *  Copyright (C) 2001-2002  Jim Evins <evins@snaught.com>.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  */
  22
  23 #ifndef __VIEW_H__
  24 #define __VIEW_H__
  25
  26 #include <gtk/gtk.h>
  27 #include <libgnomecanvas/libgnomecanvas.h>
  28
  29 #include "label-object.h"
  30
  31 typedef enum {
  32         GL_VIEW_STATE_ARROW,
  33         GL_VIEW_STATE_OBJECT_CREATE
  34 } glViewState;
  35
  36 #define GL_TYPE_VIEW            (gl_view_get_type ())
  37 #define GL_VIEW(obj)            (GTK_CHECK_CAST((obj), GL_TYPE_VIEW, glView ))
  38 #define GL_VIEW_CLASS(klass)    (GTK_CHECK_CLASS_CAST ((klass), GL_TYPE_VIEW, glViewClass))
  39 #define GL_IS_VIEW(obj)         (GTK_CHECK_TYPE ((obj), GL_TYPE_VIEW))
  40 #define GL_IS_VIEW_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GL_TYPE_VIEW))
  41
  42 typedef struct _glView      glView;
  43 typedef struct _glViewClass glViewClass;
  44
  45 #include "view-object.h"
  46
  47 struct _glView {
  48         GtkVBox           parent_widget;
  49
  50         glLabel          *label;
  51
  52         GtkWidget        *canvas;
  53         gdouble           scale;
  54
  55         GnomeCanvasGroup *bg_group;              /* Background layer */
  56         GnomeCanvasGroup *grid_group;            /* Grid layer */
  57         GnomeCanvasGroup *markup_group;          /* Markup layer */
  58         GnomeCanvasGroup *label_group;           /* Label layer (user objects) */
  59         GnomeCanvasGroup *fg_group;              /* Foreground layer */
  60
  61         gdouble           grid_spacing;
  62
  63         glViewState       state;
  64         glLabelObjectType create_type;
  65
  66         GList             *object_list;           /* glViewObjects */
  67         GList             *selected_object_list;  /* glViewObjects */
  68
  69         /* Clipboard selection stuff */
  70         gint              have_selection;
  71         glLabel           *selection_data;
  72         GtkWidget         *invisible;
  73
  74         GtkWidget         *menu;
  75 };
  76
  77 struct _glViewClass {
  78         GtkVBoxClass      parent_class;
  79
  80         /* Selection changed signal */
  81         void (*selection_changed) (glView   *view,
  82                                    gpointer  user_data);
  83
  84         /* Signals to support a status bar */
  85         void (*zoom_changed)      (glView   *view,
  86                                    gdouble   zoom,
  87                                    gpointer  user_data);
  88         void (*pointer_moved)     (glView   *view,
  89                                    gdouble   x,
  90                                    gdouble   y,
  91                                    gpointer  user_data);
  92         void (*pointer_exit)      (glView   *view,
  93                                    gpointer  user_data);
  94         void (*mode_changed)      (glView   *view,
  95                                    gpointer  user_data);
  96 };
  97
  98 G_BEGIN_DECLS
  99
 100 guint      gl_view_get_type                (void);
 101
 102 GtkWidget *gl_view_new                     (glLabel           *label);
 103
 104
 105 void       gl_view_raise_fg                (glView            *view);
 106
 107
 108 void       gl_view_show_grid               (glView            *view);
 109
 110 void       gl_view_hide_grid               (glView            *view);
 111
 112 void       gl_view_set_grid_spacing        (glView            *view,
 113                                             gdouble            spacing);
 114
 115 void       gl_view_show_markup             (glView            *view);
 116
 117 void       gl_view_hide_markup             (glView            *view);
 118
 119 void       gl_view_arrow_mode              (glView            *view);
 120
 121 void       gl_view_object_create_mode      (glView            *view,
 122                                             glLabelObjectType  type);
 123
 124
 125 void       gl_view_select_object           (glView            *view,
 126                                             glViewObject      *view_object);
 127
 128 void       gl_view_unselect_object         (glView            *view,
 129                                             glViewObject      *view_object);
 130
 131 void       gl_view_select_all              (glView            *view);
 132
 133 void       gl_view_unselect_all            (glView            *view);
 134
 135 void       gl_view_select_region           (glView            *view,
 136                                             gdouble            x1,
 137                                             gdouble            y1,
 138                                             gdouble            x2,
 139                                             gdouble            y2);
 140
 141 gboolean   gl_view_is_selection_empty      (glView            *view);
 142
 143 gboolean   gl_view_is_selection_atomic     (glView            *view);
 144
 145 void       gl_view_delete_selection        (glView            *view);
 146
 147 void       gl_view_edit_object_props       (glView            *view);
 148
 149 void       gl_view_raise_selection         (glView            *view);
 150
 151 void       gl_view_lower_selection         (glView            *view);
 152
 153 void       gl_view_flip_selection_horiz    (glView            *view);
 154
 155 void       gl_view_flip_selection_vert     (glView            *view);
 156
 157 void       gl_view_cut                     (glView            *view);
 158
 159 void       gl_view_copy                    (glView            *view);
 160
 161 void       gl_view_paste                   (glView            *view);
 162
 163
 164 void       gl_view_zoom_in                 (glView            *view);
 165
 166 void       gl_view_zoom_out                (glView            *view);
 167
 168 void       gl_view_set_zoom                (glView            *view,
 169                                             gdouble            scale);
 170
 171 gdouble    gl_view_get_zoom                (glView            *view);
 172
 173 gboolean   gl_view_is_zoom_max             (glView            *view);
 174
 175 gboolean   gl_view_is_zoom_min             (glView            *view);
 176
 177
 178 int        gl_view_item_event_handler      (GnomeCanvasItem   *item,
 179                                             GdkEvent          *event,
 180                                             glViewObject      *view_object);
 181
 182 G_END_DECLS
 183
 184 #endif