Fl_Text_Editor.h Source File

00001 /*
00002  * $Id: Fl_Text_Editor.h,v 1.8 2003/04/04 19:18:46 parshin Exp $
00003  *
00004  * Extended Fast Light Toolkit (EFLTK)
00005  * Copyright (C) 2002-2003 by EDE-Team
00006  * WWW: http://www.sourceforge.net/projects/ede
00007  *
00008  * Fast Light Toolkit (FLTK)
00009  * Copyright (C) 1998-2003 by Bill Spitzak and others.
00010  * WWW: http://www.fltk.org
00011  *
00012  * This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
00013  * version 2. See COPYING for details.
00014  *
00015  * Author : Mikko Lahteenmaki
00016  * Email  : mikko@fltk.net
00017  *
00018  * Please report all bugs and problems to "efltk-bugs@fltk.net"
00019  *
00020  */
00021 
00022 #ifndef _FL_TEXT_EDITOR_H_
00023 #define _FL_TEXT_EDITOR_H_
00024 
00025 #include "Fl_Text_Display.h"
00026 
00027 // key will match in any state
00028 #define FL_TEXT_EDITOR_ANY_STATE  (-1L)
00029 
00031 class FL_API Fl_Text_Editor : public Fl_Text_Display {
00032 public:
00033     typedef int (*Key_Func)(int key, Fl_Text_Editor* editor);
00034 
00035     struct FL_API Key_Binding {
00036         int          key;
00037         int          state;
00038         Key_Func     function;
00039         Key_Binding* next;
00040     };
00041 
00043     Fl_Text_Editor(int X, int Y, int W, int H, const char* l = 0);
00044 
00046     Fl_Text_Editor(const char* l = 0,int layout_size=30,Fl_Align layout_al=FL_ALIGN_TOP,int label_w=-1);
00047 
00049     ~Fl_Text_Editor() { remove_all_key_bindings(); }
00050 
00051     static Fl_Named_Style* default_style;
00052     virtual int handle(int e);
00053     void insert_mode(int b) { insert_mode_ = b; }
00054     int insert_mode() { return insert_mode_; }
00055 
00056     void add_key_binding(int key, int state, Key_Func f, Key_Binding** list);
00057     void add_key_binding(int key, int state, Key_Func f)
00058     { add_key_binding(key, state, f, &key_bindings); }
00059     void remove_key_binding(int key, int state, Key_Binding** list);
00060     void remove_key_binding(int key, int state)
00061     { remove_key_binding(key, state, &key_bindings); }
00062     void remove_all_key_bindings(Key_Binding** list);
00063     void remove_all_key_bindings() { remove_all_key_bindings(&key_bindings); }
00064     void add_default_key_bindings(Key_Binding** list);
00065     Key_Func bound_key_function(int key, int state, Key_Binding* list);
00066     Key_Func bound_key_function(int key, int state)
00067     { return bound_key_function(key, state, key_bindings); }
00068     void default_key_function(Key_Func f) { default_key_function_ = f; }
00069 
00070     // functions for the built in default bindings
00071     static int kf_default(int c, Fl_Text_Editor* e);
00072     static int kf_ignore(int c, Fl_Text_Editor* e);
00073     static int kf_backspace(int c, Fl_Text_Editor* e);
00074     static int kf_enter(int c, Fl_Text_Editor* e);
00075     static int kf_move(int c, Fl_Text_Editor* e);
00076     static int kf_shift_move(int c, Fl_Text_Editor* e);
00077     static int kf_ctrl_move(int c, Fl_Text_Editor* e);
00078     static int kf_c_s_move(int c, Fl_Text_Editor* e);
00079     static int kf_home(int, Fl_Text_Editor* e);
00080     static int kf_end(int c, Fl_Text_Editor* e);
00081     static int kf_left(int c, Fl_Text_Editor* e);
00082     static int kf_up(int c, Fl_Text_Editor* e);
00083     static int kf_right(int c, Fl_Text_Editor* e);
00084     static int kf_down(int c, Fl_Text_Editor* e);
00085     static int kf_page_up(int c, Fl_Text_Editor* e);
00086     static int kf_page_down(int c, Fl_Text_Editor* e);
00087     static int kf_insert(int c, Fl_Text_Editor* e);
00088     static int kf_delete(int c, Fl_Text_Editor* e);
00089     static int kf_copy(int c, Fl_Text_Editor* e);
00090     static int kf_cut(int c, Fl_Text_Editor* e);
00091     static int kf_undo(int c, Fl_Text_Editor* e);
00092     static int kf_paste(int c, Fl_Text_Editor* e);
00093     static int kf_select_all(int c, Fl_Text_Editor* e);
00094 
00095     void insert(const char* text);
00096     void overstrike(const char* text);
00097 
00098 protected:
00099     int handle_key();
00100     int insert_mode_;
00101     Key_Binding* key_bindings;
00102     static Key_Binding* global_key_bindings;
00103     Key_Func default_key_function_;
00104 private:
00105     void ctor_init();
00106 };
00107 
00108 #endif