fltk/FL/Fl_Tile.H
Albrecht Schlosser 6ba7b49baf Improve subclassing cababilities of Fl_Tile (STR 2791)
- remove static variables and functions
- make move_intersection() virtual
- add (protected) cursor access methods

These changes were inspired by STR 2791 where the user proposing an
enhancement was not able to subclass Fl_Tile properly. This commit
fixes the mentioned issues and enables subclassing without copying
internal code.
2023-10-16 13:33:40 +02:00

53 lines
1.5 KiB
C++

//
// Tile header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2023 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
#ifndef Fl_Tile_H
#define Fl_Tile_H
#include "Fl_Group.H"
/*
The Fl_Tile class lets you resize its children by dragging
the border between them.
*/
class FL_EXPORT Fl_Tile : public Fl_Group {
public:
int handle(int event) FL_OVERRIDE;
Fl_Tile(int X, int Y, int W, int H, const char *L=0);
void resize(int X, int Y, int W, int H) FL_OVERRIDE;
virtual void move_intersection(int oldx, int oldy, int newx, int newy);
FL_DEPRECATED("in 1.4.0 - use move_intersection(p) instead",
void position(int oldx, int oldy, int newx, int newy)) { move_intersection(oldx, oldy, newx, newy); }
void position(int x, int y) { Fl_Group::position(x, y); }
protected:
int cursor_; ///< current cursor index (0..3)
Fl_Cursor *cursors_; ///< points at the array of 4 cursors (may be overridden)
/** Returns the cursor for cursor index n.
\see Fl_Tile::set_cursor(int)
*/
Fl_Cursor cursor(int n) {
return cursors_[n];
}
void set_cursor(int n); // set one of n (0..3) cursors
};
#endif