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//
// "$Id"
//
// Widget header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998 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@easysw.com".
//
#ifndef Fl_Widget_H
#define Fl_Widget_H
#include "Enumerations.H"
class Fl_Widget;
class Fl_Window;
typedef void (Fl_Callback )(Fl_Widget*, void*);
typedef void (Fl_Callback0)(Fl_Widget*);
typedef void (Fl_Callback1)(Fl_Widget*, long);
struct Fl_Label {
const char* value;
uchar type;
uchar font;
uchar size;
uchar color;
void draw(int,int,int,int, Fl_Align) const ;
void measure(int&, int&) const ;
};
class Fl_Widget {
friend class Fl_Group;
Fl_Widget* parent_;
Fl_Callback* callback_;
void* user_data_;
short x_,y_,w_,h_;
Fl_Label label_;
uchar type_;
uchar flags_;
uchar damage_;
uchar box_;
uchar color_;
uchar color2_;
uchar align_;
uchar when_;
// "de-implement" the copy constructors:
Fl_Widget & operator=(const Fl_Widget &);
Fl_Widget(const Fl_Widget &);
protected:
Fl_Widget(int,int,int,int,const char* =0);
void x(int v) {x_ = v;}
void y(int v) {y_ = v;}
void w(int v) {w_ = v;}
void h(int v) {h_ = v;}
uchar flags() const {return flags_;}
void set_flag(int c) {flags_ |= c;}
void clear_flag(int c) {flags_ &= ~c;}
enum {INACTIVE=1, INVISIBLE=2, OUTPUT=4, SHORTCUT_LABEL=64, CHANGED=128};
void draw_box() const;
void draw_box(Fl_Boxtype, Fl_Color) const;
void draw_box(Fl_Boxtype, int,int,int,int, Fl_Color) const;
void draw_label() const;
void draw_label(int, int, int, int) const;
static Fl_Font default_font_;
static int default_size_;
public:
virtual ~Fl_Widget();
virtual void draw() = 0;
virtual int handle(int);
Fl_Widget* parent() const {return parent_;}
void parent(Fl_Widget* w) {parent_ = w;} // for hacks only
uchar type() const {return type_;}
void type(uchar t) {type_ = t;}
int x() const {return x_;}
int y() const {return y_;}
int w() const {return w_;}
int h() const {return h_;}
virtual void resize(int,int,int,int);
int damage_resize(int,int,int,int);
void position(int X,int Y) {resize(X,Y,w_,h_);}
void size(int W,int H) {resize(x_,y_,W,H);}
Fl_Align align() const {return (Fl_Align)align_;}
void align(uchar a) {align_ = a;}
Fl_Boxtype box() const {return (Fl_Boxtype)box_;}
void box(Fl_Boxtype a) {box_ = a;}
Fl_Color color() const {return (Fl_Color)color_;}
void color(uchar a) {color_ = a;}
Fl_Color selection_color() const {return (Fl_Color)color2_;}
void selection_color(uchar a) {color2_ = a;}
void color(uchar a, uchar b) {color_=a; color2_=b;}
const char* label() const {return label_.value;}
void label(const char* a) {label_.value=a;}
void label(Fl_Labeltype a,const char* b) {label_.type = a; label_.value = b;}
Fl_Labeltype labeltype() const {return (Fl_Labeltype)label_.type;}
void labeltype(Fl_Labeltype a) {label_.type = a;}
Fl_Color labelcolor() const {return (Fl_Color)label_.color;}
void labelcolor(uchar a) {label_.color=a;}
Fl_Font labelfont() const {return (Fl_Font)label_.font;}
void labelfont(uchar a) {label_.font=a;}
uchar labelsize() const {return label_.size;}
void labelsize(uchar a) {label_.size=a;}
Fl_Callback* callback() const {return callback_;}
void callback(Fl_Callback* c, void* p) {callback_=c; user_data_=p;}
void callback(Fl_Callback* c) {callback_=c;}
void callback(Fl_Callback0*c) {callback_=(Fl_Callback*)c;}
void callback(Fl_Callback1*c, long p=0) {callback_=(Fl_Callback*)c; user_data_=(void*)p;}
void* user_data() const {return user_data_;}
void user_data(void* v) {user_data_ = v;}
long argument() const {return (long)user_data_;}
void argument(long v) {user_data_ = (void*)v;}
Fl_When when() const {return (Fl_When)when_;}
void when(uchar i) {when_ = i;}
static void default_font(Fl_Font b) {default_font_ = b;}
static Fl_Font default_font() {return default_font_;}
static void default_size(int b) {default_size_ = b;}
static int default_size() {return default_size_;}
int visible() const {return !(flags_&INVISIBLE);}
int visible_r() const;
void show();
void hide();
void set_visible() {flags_ &= ~INVISIBLE;}
void clear_visible() {flags_ |= INVISIBLE;}
int active() const {return !(flags_&INACTIVE);}
int active_r() const;
void activate();
void deactivate();
int output() const {return (flags_&OUTPUT);}
void set_output() {flags_ |= OUTPUT;}
void clear_output() {flags_ &= ~OUTPUT;}
int takesevents() const {return !(flags_&(INACTIVE|INVISIBLE|OUTPUT));}
int changed() const {return flags_&CHANGED;}
void set_changed() {flags_ |= CHANGED;}
void clear_changed() {flags_ &= ~CHANGED;}
int take_focus();
static void default_callback(Fl_Widget*, void*);
void do_callback() {callback_(this,user_data_);}
void do_callback(Fl_Widget* o,void* arg=0) {callback_(o,arg);}
void do_callback(Fl_Widget* o,long arg) {callback_(o,(void*)arg);}
int test_shortcut();
static int test_shortcut(const char*);
int contains(const Fl_Widget*) const ;
int inside(const Fl_Widget* o) const {return o ? o->contains(this) : 0;}
void redraw();
uchar damage() const {return damage_;}
void clear_damage(uchar c = 0) {damage_ = c;}
void damage(uchar c);
void damage(uchar c,int,int,int,int);
void draw_label(int, int, int, int, Fl_Align) const;
void measure_label(int& x, int& y) {label_.measure(x,y);}
Fl_Window* window() const ;
// back compatability only:
Fl_Color color2() const {return (Fl_Color)color2_;}
void color2(uchar a) {color2_ = a;}
};
// reserved type numbers (necessary for my cheapo RTTI) start here.
// grep the header files for "RESERVED_TYPE" to find the next available
// number.
#define FL_RESERVED_TYPE 100
#endif
//
// End of "$Id: Fl_Widget.H,v 1.2 1998/10/19 21:39:18 mike Exp $".
//
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