/usr/include/FL/Fl_Input_.H is in libfltk1.1-dev 1.1.10-17.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// "$Id: Fl_Input_.H 4288 2005-04-16 00:13:17Z mike $"
//
// Input base class header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2005 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library 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.
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
#ifndef Fl_Input__H
#define Fl_Input__H
#ifndef Fl_Widget_H
#include "Fl_Widget.H"
#endif
#define FL_NORMAL_INPUT 0
#define FL_FLOAT_INPUT 1
#define FL_INT_INPUT 2
#define FL_HIDDEN_INPUT 3
#define FL_MULTILINE_INPUT 4
#define FL_SECRET_INPUT 5
#define FL_INPUT_TYPE 7
#define FL_INPUT_READONLY 8
#define FL_NORMAL_OUTPUT (FL_NORMAL_INPUT | FL_INPUT_READONLY)
#define FL_MULTILINE_OUTPUT (FL_MULTILINE_INPUT | FL_INPUT_READONLY)
#define FL_INPUT_WRAP 16
#define FL_MULTILINE_INPUT_WRAP (FL_MULTILINE_INPUT | FL_INPUT_WRAP)
#define FL_MULTILINE_OUTPUT_WRAP (FL_MULTILINE_INPUT | FL_INPUT_READONLY | FL_INPUT_WRAP)
class FL_EXPORT Fl_Input_ : public Fl_Widget {
const char* value_;
char* buffer;
int size_;
int bufsize;
int position_;
int mark_;
int xscroll_, yscroll_;
int mu_p;
int maximum_size_;
uchar erase_cursor_only;
uchar textfont_;
uchar textsize_;
unsigned textcolor_;
unsigned cursor_color_;
const char* expand(const char*, char*) const;
double expandpos(const char*, const char*, const char*, int*) const;
void minimal_update(int, int);
void minimal_update(int p);
void put_in_buffer(int newsize);
void setfont() const;
protected:
int word_start(int i) const;
int word_end(int i) const;
int line_start(int i) const;
int line_end(int i) const;
void drawtext(int, int, int, int);
int up_down_position(int, int keepmark=0);
void handle_mouse(int, int, int, int, int keepmark=0);
int handletext(int e, int, int, int, int);
void maybe_do_callback();
int xscroll() const {return xscroll_;}
int yscroll() const {return yscroll_;}
public:
void resize(int, int, int, int);
Fl_Input_(int, int, int, int, const char* = 0);
~Fl_Input_();
int value(const char*);
int value(const char*, int);
int static_value(const char*);
int static_value(const char*, int);
const char* value() const {return value_;}
char index(int i) const {return value_[i];}
int size() const {return size_;}
void size(int W, int H) { Fl_Widget::size(W, H); }
int maximum_size() const {return maximum_size_;}
void maximum_size(int m) {maximum_size_ = m;}
int position() const {return position_;}
int mark() const {return mark_;}
int position(int p, int m);
int position(int p) {return position(p, p);}
int mark(int m) {return position(position(), m);}
int replace(int, int, const char*, int=0);
int cut() {return replace(position(), mark(), 0);}
int cut(int n) {return replace(position(), position()+n, 0);}
int cut(int a, int b) {return replace(a, b, 0);}
int insert(const char* t, int l=0){return replace(position_, mark_, t, l);}
int copy(int clipboard);
int undo();
int copy_cuts();
Fl_Font textfont() const {return (Fl_Font)textfont_;}
void textfont(uchar s) {textfont_ = s;}
uchar textsize() const {return textsize_;}
void textsize(uchar s) {textsize_ = s;}
Fl_Color textcolor() const {return (Fl_Color)textcolor_;}
void textcolor(unsigned n) {textcolor_ = n;}
Fl_Color cursor_color() const {return (Fl_Color)cursor_color_;}
void cursor_color(unsigned n) {cursor_color_ = n;}
int input_type() const {return type() & FL_INPUT_TYPE; }
void input_type(int t) { type((uchar)(t | readonly())); }
int readonly() const { return type() & FL_INPUT_READONLY; }
void readonly(int b) { if (b) type((uchar)(type() | FL_INPUT_READONLY));
else type((uchar)(type() & ~FL_INPUT_READONLY)); }
int wrap() const { return type() & FL_INPUT_WRAP; }
void wrap(int b) { if (b) type((uchar)(type() | FL_INPUT_WRAP));
else type((uchar)(type() & ~FL_INPUT_WRAP)); }
};
#endif
//
// End of "$Id: Fl_Input_.H 4288 2005-04-16 00:13:17Z mike $".
//
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