app/tool.h

   1 /* Dia -- an diagram creation/manipulation program
   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 TOOL_H
  19 #define TOOL_H
  20
  21 #include <gdk/gdk.h>
  22
  23 typedef struct _Tool Tool;
  24 typedef struct _ToolInfo ToolInfo;
  25 typedef struct _ToolState ToolState;
  26
  27 typedef enum _ToolType ToolType;
  28
  29 #include "display.h"
  30
  31 typedef void (* ButtonPressFunc)   (Tool *, GdkEventButton *, DDisplay *ddisp);
  32 typedef void (* DoubleClickFunc)   (Tool *, GdkEventButton *, DDisplay *ddisp);
  33 typedef void (* ButtonReleaseFunc) (Tool *, GdkEventButton *, DDisplay *ddisp);
  34 typedef void (* MotionFunc)        (Tool *, GdkEventMotion *, DDisplay *ddisp);
  35
  36 enum _ToolType {
  37   CREATE_OBJECT_TOOL,
  38   MAGNIFY_TOOL,
  39   MODIFY_TOOL,
  40   SCROLL_TOOL
  41 };
  42
  43 struct _Tool {
  44   ToolType type;
  45
  46   /*  Action functions  */
  47   ButtonPressFunc    button_press_func;
  48   ButtonReleaseFunc  button_release_func;
  49   MotionFunc         motion_func;
  50   DoubleClickFunc    double_click_func;
  51 };
  52
  53 struct _ToolInfo {
  54   ToolType type;
  55   char *tooltip;
  56 };
  57
  58 struct _ToolState {
  59   ToolType type;
  60   gpointer extra_data;
  61   gpointer user_data;
  62   GtkWidget *button;
  63   int invert_persistence;
  64 };
  65
  66 extern Tool *active_tool, *transient_tool;
  67
  68 void tool_get(ToolState *state);
  69 void tool_restore(const ToolState *state);
  70 void tool_free(Tool *tool);
  71 void tool_select(ToolType type, gpointer extra_data, gpointer user_date,
  72                  GtkWidget *button, int invert_persistence);
  73 void tool_select_former(void);
  74 void tool_reset(void);
  75 void tool_options_dialog_show(ToolType type, gpointer extra_data,
  76                               gpointer user_data,GtkWidget *button,
  77                               int invert_persistence);
  78
  79 #endif /* TOOL_H */