gtk/gtk/gtkentry.h

/* GTK - The GIMP Toolkit
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

/*
 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
 * file for a list of people on the GTK+ Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
 */

#ifndef __GTK_ENTRY_H__
#define __GTK_ENTRY_H__


#include <gdk/gdk.h>
#include <gtk/gtkeditable.h>
#include <gtk/gtkimcontext.h>
#include <pango/pango.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */


#define GTK_TYPE_ENTRY                  (gtk_entry_get_type ())
#define GTK_ENTRY(obj)                  (GTK_CHECK_CAST ((obj), GTK_TYPE_ENTRY, GtkEntry))
#define GTK_ENTRY_CLASS(klass)          (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_ENTRY, GtkEntryClass))
#define GTK_IS_ENTRY(obj)               (GTK_CHECK_TYPE ((obj), GTK_TYPE_ENTRY))
#define GTK_IS_ENTRY_CLASS(klass)       (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_ENTRY))
#define GTK_ENTRY_GET_CLASS(obj)        (GTK_CHECK_GET_CLASS ((obj), GTK_TYPE_ENTRY, GtkEntryClass))


typedef struct _GtkEntry       GtkEntry;
typedef struct _GtkEntryClass  GtkEntryClass;

struct _GtkEntry
{
  GtkWidget  widget;

  gchar     *text;

  guint      editable : 1;
  guint      visible  : 1;
  guint      overwrite_mode : 1;
  guint      in_drag : 1;	/* Dragging within the selection */

  guint16 text_length;	/* length in use, in chars */
  guint16 text_max_length;

  /*< private >*/
  GdkWindow *text_area;
  GtkIMContext *im_context;
  GtkWidget   *popup_menu;
  
  gint         current_pos;
  gint         selection_bound;
  
  PangoLayout *cached_layout;
  guint        cache_includes_preedit : 1;

  guint        need_im_reset : 1;

  guint   button;
  guint   timer;
  guint   recompute_idle;
  gint    scroll_offset;
  gint    ascent;	/* font ascent, in pango units  */
  gint    descent;	/* font descent, in pango units  */
  
  guint16 text_size;	/* allocated size, in bytes */
  guint16 n_bytes;	/* length in use, in bytes */

  guint16 preedit_length;	/* length of preedit string, in bytes */
  guint16 preedit_cursor;	/* offset of cursor within preedit string, in chars */

  gint dnd_position;		/* In chars, -1 == no DND cursor */

  gint drag_start_x;
  gint drag_start_y;
  
  gunichar invisible_char;
};

struct _GtkEntryClass
{
  GtkWidgetClass parent_class;
  
  /* Notification of changes
   */
  void (* changed)          (GtkEntry       *entry);
  void (* insert_text)      (GtkEntry       *entry,
			     const gchar    *text,
			     gint            length,
			     gint           *position);
  void (* delete_text)      (GtkEntry       *entry,
		    	     gint            start_pos,
			     gint            end_pos);

  /* Action signals
   */
  void (* activate)           (GtkEntry       *entry);
  void (* move_cursor)        (GtkEntry       *entry,
			       GtkMovementStep step,
			       gint            count,
			       gboolean        extend_selection);
  void (* insert_at_cursor)   (GtkEntry       *entry,
			       const gchar    *str);
  void (* delete_from_cursor) (GtkEntry       *entry,
			       GtkDeleteType   type,
			       gint            count);
  void (* cut_clipboard)      (GtkEntry       *entry);
  void (* copy_clipboard)     (GtkEntry       *entry);
  void (* paste_clipboard)    (GtkEntry       *entry);
  void (* toggle_overwrite)   (GtkEntry       *entry);
};

GtkType    gtk_entry_get_type       		(void) G_GNUC_CONST;
GtkWidget* gtk_entry_new            		(void);
void       gtk_entry_set_visibility 		(GtkEntry      *entry,
						 gboolean       visible);
void       gtk_entry_set_invisible_char         (GtkEntry      *entry,
                                                 gunichar       ch);
void       gtk_entry_set_editable   		(GtkEntry      *entry,
						 gboolean       editable);
/* text is truncated if needed */
void       gtk_entry_set_max_length 		(GtkEntry      *entry,
						 guint16        max);

/* Somewhat more convenient than the GtkEditable generic functions
 */
void       gtk_entry_set_text       		(GtkEntry      *entry,
						 const gchar   *text);
/* returns a reference to the text */
gchar*     gtk_entry_get_text       		(GtkEntry      *entry);

/* Deprecated compatibility functions
 */
GtkWidget* gtk_entry_new_with_max_length	(guint16       max);
void       gtk_entry_append_text    		(GtkEntry      *entry,
						 const gchar   *text);
void       gtk_entry_prepend_text   		(GtkEntry      *entry,
						 const gchar   *text);
void       gtk_entry_set_position   		(GtkEntry      *entry,
						 gint           position);
void       gtk_entry_select_region  		(GtkEntry      *entry,
						 gint           start,
						 gint           end);

#ifdef __cplusplus
}
#endif /* __cplusplus */


#endif /* __GTK_ENTRY_H__ */