gimp/app/tools.h

154 lines
4.4 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __TOOLS_H__
#define __TOOLS_H__
#include "layerF.h"
#include "gdisplayF.h"
#include "gimpcontext.h"
#include "tool_options.h"
#include "channel.h"
#include "cursorutil.h"
#include "toolsF.h"
#include <gtk/gtk.h>
/* The possible states for tools */
typedef enum
{
INACTIVE,
ACTIVE,
PAUSED
} ToolState;
/* Selection Boolean operations that rect, */
/* ellipse, freehand, and fuzzy tools may */
/* perform. */
typedef enum
{
SELECTION_ADD = ADD,
SELECTION_SUB = SUB,
SELECTION_REPLACE = REPLACE,
SELECTION_INTERSECT = INTERSECT,
SELECTION_MOVE_MASK,
SELECTION_MOVE,
SELECTION_ANCHOR
} SelectOps;
/* The possibilities for where the cursor lies */
#define ACTIVE_LAYER (1 << 0)
#define SELECTION (1 << 1)
#define NON_ACTIVE_LAYER (1 << 2)
/* The types of tools... */
struct _Tool
{
/* Data */
ToolType type; /* Tool type */
gint ID; /* unique tool ID */
ToolState state; /* state of tool activity */
gint paused_count; /* paused control count */
gboolean scroll_lock; /* allow scrolling or not */
gboolean auto_snap_to; /* snap to guides automatically */
gboolean preserve; /* Preserve this tool across drawable changes */
void *gdisp_ptr; /* pointer to currently active gdisp */
void *drawable; /* pointer to the tool's current drawable */
gboolean toggled; /* Bad hack to let the paint_core show the */
/* right toggle cursors */
void *private; /* Tool-specific information */
/* Action functions */
ButtonPressFunc button_press_func;
ButtonReleaseFunc button_release_func;
MotionFunc motion_func;
ArrowKeysFunc arrow_keys_func;
ModifierKeyFunc modifier_key_func;
CursorUpdateFunc cursor_update_func;
OperUpdateFunc oper_update_func;
ToolCtlFunc control_func;
};
struct _ToolInfo
{
ToolOptions *tool_options;
gchar *tool_name;
gchar *menu_path;
gchar *menu_accel;
gchar **icon_data;
GdkPixmap *icon_pixmap;
GdkBitmap *icon_mask;
gchar *tool_desc;
const gchar *private_tip;
ToolType tool_id;
ToolInfoNewFunc new_func;
ToolInfoFreeFunc free_func;
ToolInfoInitFunc init_func;
GtkWidget *tool_widget;
GimpContext *tool_context;
BitmapCursor tool_cursor;
BitmapCursor toggle_cursor;
};
/* Global Data Structures */
extern Tool * active_tool;
extern ToolInfo tool_info[];
extern gint num_tools;
/* Function declarations */
Tool * tools_new_tool (ToolType tool_type);
void tools_select (ToolType tool_type);
void tools_initialize (ToolType tool_type,
GDisplay *gdisplay);
void active_tool_control (ToolAction action,
void *gdisp_ptr);
void tools_help_func (const gchar *help_data);
void tools_register (ToolType tool_type,
ToolOptions *tool_options);
void tool_options_dialog_new (void);
void tool_options_dialog_show (void);
void tool_options_dialog_free (void);
gchar * tool_active_PDB_string (void);
/* don't unref this pixmaps, they are static! */
GdkPixmap * tool_get_pixmap (ToolType tool_type);
GdkBitmap * tool_get_mask (ToolType tool_type);
#endif /* __TOOLS_H__ */