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//
// "$Id: Group.h 5915 2007-06-19 17:49:29Z spitzak $"
//
// Group is the base class for all container widgets. For historical
// reasons it also provides a default version of layout.
//
// Copyright 1998-2006 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 to "fltk-bugs@fltk.org".
//
#ifndef fltk_Group_h
#define fltk_Group_h
#ifndef fltk_Widget_h
# include "Widget.h"
#endif
namespace fltk {
class FL_API Group : public Widget {
public:
int children() const {return children_;}
Widget* child(int n) const {return array_[n];}
void draw();
void layout();
int handle(int);
void begin() {current_ = this;}
void end() {current_ = (Group*)parent();}
static Group *current() {return current_;}
static void current(Group *g) {current_ = g;}
int find(const Widget*) const;
int find(const Widget& o) const {return find(&o);}
Group(int,int,int,int, const char * = 0, bool begin=false);
virtual ~Group();
void add(Widget&);
void add(Widget* o) {add(*o);}
void insert(Widget&, int index);
void insert(Widget& o, Widget* before) {insert(o,find(before));}
void remove(int index);
void remove(Widget& o) {remove(find(o));}
void remove(Widget* o) {remove(find(*o));}
void remove_all();
void replace(int index, Widget&);
void replace(Widget& old, Widget& o) {replace(find(old),o);}
void swap(int indexA, int indexB);
void clear();
void resizable(Widget& o) {resizable_ = &o;}
void resizable(Widget* o) {resizable_ = o;}
Widget* resizable() const {return resizable_;}
void add_resizable(Widget& o) {resizable_ = &o; add(o);}
void init_sizes();
void focus_index(int v) {focus_index_ = v;}
void set_focus(Widget* w) {focus_index_ = find(w);}
int focus_index() const {return focus_index_;}
static int navigation_key();
// back compatability function:
friend FL_FORMS_API void end_group(); // forms emulation function
void fix_old_positions();
Flags resize_align() const {return resize_align_;}
void resize_align(Flags f) {resize_align_ = f;}
protected:
void draw_child(Widget&) const;
void update_child(Widget&) const;
void draw_outside_label(Widget&) const ;
int initial_w, initial_h;
int* sizes();
void layout(const Rectangle&, int layout_damage);
private:
int children_;
int focus_index_;
Widget** array_;
Widget* resizable_;
Flags resize_align_;
int *sizes_; // remembered initial sizes of children
static Group *current_;
};
}
#endif
//
// End of "$Id: Group.h 5915 2007-06-19 17:49:29Z spitzak $".
//
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