fltk/fluid/Fl_Type.h

//
// "$Id: Fl_Type.h,v 1.5.2.5 1999/09/10 16:40:17 bill Exp $"
//
// Widget type header file for the Fast Light Tool Kit (FLTK).
//
// Each object described by Fluid is one of these objects.  They
// are all stored in a double-linked list.
//
// There is also a single "factory" instance of each type of this.
// The method "make()" is called on this factory to create a new
// instance of this object.  It could also have a "copy()" function,
// but it was easier to implement this by using the file read/write
// that is needed to save the setup anyways.
// Copyright 1998-1999 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".
//

#include <FL/Fl_Widget.H>
#include <FL/Fl_Menu.H>
#include "Fluid_Image.h"

class Fl_Type {

  friend class Widget_Browser;
  friend Fl_Widget *make_type_browser(int,int,int,int,const char *l=0);
  friend class Fl_Window_Type;
  virtual void setlabel(const char *); // virtual part of label(char*)

protected:

  Fl_Type();

  const char *name_;
  const char *label_;
  const char *callback_;
  const char *user_data_;
  const char *user_data_type_;

public:	// things that should not be public:

  Fl_Type *parent; // parent, which is previous in list
  char new_selected; // browser highlight
  char selected; // copied here by selection_changed()
  char open_;	// state of triangle in browser
  char visible; // true if all parents are open
  char rtti;	// hack because I have no rtti, this is 0 for base class
  int level;	// number of parents over this
  static Fl_Type *first, *last; // linked list of all objects
  Fl_Type *next, *prev;	// linked list of all objects

  Fl_Type *factory;
  const char *callback_name();

public:

  virtual ~Fl_Type();
  virtual Fl_Type *make() = 0;

  void add(Fl_Type *parent); // add as new child
  void insert(Fl_Type *n); // insert into list before n
  Fl_Type* remove();	// remove from list
  void move_before(Fl_Type*); // move before a sibling

  virtual const char *title(); // string for browser
  virtual const char *type_name() = 0; // type for code output

  const char *name() const {return name_;}
  void name(const char *);
  const char *label() const {return label_;}
  void label(const char *);
  const char *callback() const {return callback_;}
  void callback(const char *);
  const char *user_data() const {return user_data_;}
  void user_data(const char *);
  const char *user_data_type() const {return user_data_type_;}
  void user_data_type(const char *);

  virtual Fl_Type* click_test(int,int);
  virtual void add_child(Fl_Type*, Fl_Type* beforethis);
  virtual void move_child(Fl_Type*, Fl_Type* beforethis);
  virtual void remove_child(Fl_Type*);

  static Fl_Type *current;  // most recently picked object
  virtual void open();	// what happens when you double-click

  // read and write data to a saved file:
  void write();
  virtual void write_properties();
  virtual void read_property(const char *);
  virtual int read_fdesign(const char*, const char*);

  // write code, these are called in order:
  virtual void write_static(); // write static stuff to .c file
  virtual void write_code1(); // code and .h before children
  virtual void write_code2(); // code and .h after children

  // fake rtti:
  virtual int is_parent() const;
  virtual int is_widget() const;
  virtual int is_button() const;
  virtual int is_valuator() const;
  virtual int is_menu_item() const;
  virtual int is_menu_button() const;
  virtual int is_group() const;
  virtual int is_window() const;
  virtual int is_code_block() const;
  virtual int is_decl_block() const;
  virtual int is_class() const;

  const char* class_name() const;
};

class Fl_Function_Type : public Fl_Type {
  const char* return_type;
  char public_, cdecl_, constructor, havewidgets;
public:
  Fl_Type *make();
  void write_code1();
  void write_code2();
  void open();
  int ismain() {return name_ == 0;}
  virtual const char *type_name() {return "Function";}
  virtual const char *title() {
    return name() ? name() : "main()";
  }
  int is_parent() const {return 1;}
  int is_code_block() const {return 1;}
  void write_properties();
  void read_property(const char *);
};

class Fl_Code_Type : public Fl_Type {
public:
  Fl_Type *make();
  void write_code1();
  void write_code2();
  void open();
  virtual const char *type_name() {return "code";}
  int is_code_block() const {return 0;}
};

class Fl_CodeBlock_Type : public Fl_Type {
  const char* after;
public:
  Fl_Type *make();
  void write_code1();
  void write_code2();
  void open();
  virtual const char *type_name() {return "codeblock";}
  int is_code_block() const {return 1;}
  int is_parent() const {return 1;}
  void write_properties();
  void read_property(const char *);
};

class Fl_Decl_Type : public Fl_Type {
  char public_;
public:
  Fl_Type *make();
  void write_code1();
  void write_code2();
  void open();
  virtual const char *type_name() {return "decl";}
  void write_properties();
  void read_property(const char *);
};

class Fl_DeclBlock_Type : public Fl_Type {
  const char* after;
public:
  Fl_Type *make();
  void write_code1();
  void write_code2();
  void open();
  virtual const char *type_name() {return "declblock";}
  void write_properties();
  void read_property(const char *);
  int is_parent() const {return 1;}
  int is_decl_block() const {return 1;}
};

class Fl_Class_Type : public Fl_Type {
  const char* subclass_of;
  char public_;
public:
  // state variables for output:
  char write_public_state; // true when public: has been printed
  Fl_Class_Type* parent_class; // save class if nested
//
  Fl_Type *make();
  void write_code1();
  void write_code2();
  void open();
  virtual const char *type_name() {return "class";}
  int is_parent() const {return 1;}
  int is_decl_block() const {return 1;}
  int is_class() const {return 1;}
  void write_properties();
  void read_property(const char *);
};

#define NUM_EXTRA_CODE 4

class Fl_Widget_Type : public Fl_Type {
  virtual Fl_Widget *widget(int,int,int,int) = 0;
  virtual Fl_Widget_Type *_make() = 0; // virtual constructor
  virtual void setlabel(const char *);

  const char *extra_code_[NUM_EXTRA_CODE];
  const char *subclass_;
  uchar hotspot_;

protected:

  void write_static();
  void write_code1();
  void write_widget_code();
  void write_extra_code();
  void write_block_close();
  void write_code2();

public:

  const char *xclass; // junk string, used for shortcut
  Fl_Widget *o;
  int public_;

  Fluid_Image *image;
  void setimage(Fluid_Image *);

  Fl_Widget_Type();
  Fl_Type *make();
  void open();

  const char *extra_code(int n) const {return extra_code_[n];}
  void extra_code(int n,const char *);
  const char *subclass() const {return subclass_;}
  void subclass(const char *);
  uchar hotspot() const {return hotspot_;}
  void hotspot(uchar v) {hotspot_ = v;}
  uchar resizable() const;
  void resizable(uchar v);

  virtual int textstuff(int what, Fl_Font &, int &, Fl_Color &);
  virtual Fl_Menu_Item *subtypes();

  virtual int is_widget() const;

  virtual void write_properties();
  virtual void read_property(const char *);
  virtual int read_fdesign(const char*, const char*);

  ~Fl_Widget_Type();
  void redraw();
};

#include <FL/Fl_Tabs.H>
#include <FL/Fl_Pack.H>

class igroup : public Fl_Group {
public:
  void resize(int,int,int,int);
  igroup(int x,int y,int w,int h) : Fl_Group(x,y,w,h) {Fl_Group::current(0);}
};

class itabs : public Fl_Tabs {
public:
  void resize(int,int,int,int);
  itabs(int x,int y,int w,int h) : Fl_Tabs(x,y,w,h) {}
};

class Fl_Group_Type : public Fl_Widget_Type {
public:
  virtual const char *type_name() {return "Fl_Group";}
  Fl_Widget *widget(int x,int y,int w,int h) {
    igroup *g = new igroup(x,y,w,h); Fl_Group::current(0); return g;}
  Fl_Widget_Type *_make() {return new Fl_Group_Type();}
  Fl_Type *make();
  void write_code1();
  void write_code2();
  void add_child(Fl_Type*, Fl_Type*);
  void move_child(Fl_Type*, Fl_Type*);
  void remove_child(Fl_Type*);
  int is_parent() const {return 1;}
  int is_group() const {return 1;}
};

extern const char pack_type_name[];
extern Fl_Menu_Item pack_type_menu[];

class Fl_Pack_Type : public Fl_Group_Type {
  Fl_Menu_Item *subtypes() {return pack_type_menu;}
public:
  virtual const char *type_name() {return pack_type_name;}
  Fl_Widget_Type *_make() {return new Fl_Pack_Type();}
};

extern const char tabs_type_name[];

class Fl_Tabs_Type : public Fl_Group_Type {
public:
  virtual const char *type_name() {return tabs_type_name;}
  Fl_Widget *widget(int x,int y,int w,int h) {
    itabs *g = new itabs(x,y,w,h); Fl_Group::current(0); return g;}
  Fl_Widget_Type *_make() {return new Fl_Tabs_Type();}
  Fl_Type* click_test(int,int);
  void add_child(Fl_Type*, Fl_Type*);
  void remove_child(Fl_Type*);
};

extern const char scroll_type_name[];
extern Fl_Menu_Item scroll_type_menu[];

class Fl_Scroll_Type : public Fl_Group_Type {
  Fl_Menu_Item *subtypes() {return scroll_type_menu;}
public:
  virtual const char *type_name() {return scroll_type_name;}
  Fl_Widget_Type *_make() {return new Fl_Scroll_Type();}
};

extern const char tile_type_name[];

class Fl_Tile_Type : public Fl_Group_Type {
public:
  virtual const char *type_name() {return tile_type_name;}
  Fl_Widget_Type *_make() {return new Fl_Tile_Type();}
};

extern Fl_Menu_Item window_type_menu[];

class Fl_Window_Type : public Fl_Widget_Type {
  Fl_Menu_Item* subtypes() {return window_type_menu;}

  friend class Overlay_Window;
  int mx,my;		// mouse position during dragging
  int x1,y1;		// initial position of selection box
  int bx,by,br,bt;	// bounding box of selection
  int dx,dy;
  int drag;		// which parts of bbox are being moved
  int numselected;	// number of children selected
  enum {LEFT=1,RIGHT=2,BOTTOM=4,TOP=8,DRAG=16,BOX=32};
  void draw_overlay();
  void newdx();
  void newposition(Fl_Widget_Type *,int &x,int &y,int &w,int &h);
  int handle(int);
  virtual void setlabel(const char *);
  void write_code1();
  void write_code2();
  Fl_Widget_Type *_make() {return 0;} // we don't call this
  Fl_Widget *widget(int,int,int,int) {return 0;}
  int recalc;		// set by fix_overlay()
  void moveallchildren();

public:

  uchar modal, non_modal;

  Fl_Type *make();
  virtual const char *type_name() {return "Fl_Window";}

  void open();

  void fix_overlay();	// update the bounding box, etc

  virtual void write_properties();
  virtual void read_property(const char *);
  virtual int read_fdesign(const char*, const char*);

  void add_child(Fl_Type*, Fl_Type*);
  void move_child(Fl_Type*, Fl_Type*);
  void remove_child(Fl_Type*);

  int is_parent() const {return 1;}
  int is_group() const {return 1;}
  int is_window() const {return 1;}
};

extern Fl_Menu_Item menu_item_type_menu[];

class Fl_Menu_Item_Type : public Fl_Widget_Type {
public:
  Fl_Menu_Item* subtypes() {return menu_item_type_menu;}
  const char* type_name() {return "menuitem";}
  Fl_Type* make();
  int is_menu_item() const {return 1;}
  int is_button() const {return 1;} // this gets shortcut to work
  Fl_Widget* widget(int,int,int,int) {return 0;}
  Fl_Widget_Type* _make() {return 0;}
  const char* menu_name(int& i);
  int flags();
  void write_static();
  void write_item();
  void write_code1();
  void write_code2();
};

class Fl_Submenu_Type : public Fl_Menu_Item_Type {
public:
  Fl_Menu_Item* subtypes() {return 0;}
  const char* type_name() {return "submenu";}
  int is_parent() const {return 1;}
  int is_button() const {return 0;} // disable shortcut
  Fl_Type* make();
  // changes to submenu must propagate up so build_menu is called
  // on the parent Fl_Menu_Type:
  void add_child(Fl_Type*a, Fl_Type*b) {parent->add_child(a,b);}
  void move_child(Fl_Type*a, Fl_Type*b) {parent->move_child(a,b);}
  void remove_child(Fl_Type*a) {parent->remove_child(a);}
};


#include <FL/Fl_Menu_.H>
class Fl_Menu_Type : public Fl_Widget_Type {
  int textstuff(int w, Fl_Font& f, int& s, Fl_Color& c) {
    Fl_Menu_ *o = (Fl_Menu_*)(w==4 ? ((Fl_Widget_Type*)this->factory)->o : this->o);
    switch (w) {
    case 4:
    case 0: f = o->textfont(); s = o->textsize(); c = o->textcolor(); break;
    case 1: o->textfont(f); break;
    case 2: o->textsize(s); break;
    case 3: o->textcolor(c); break;
    }
    return 1;
  }
public:
  int is_menu_button() const {return 1;}
  int is_parent() const {return 1;}
  int menusize;
  void build_menu();
  Fl_Menu_Type() : Fl_Widget_Type() {menusize = 0;}
  ~Fl_Menu_Type() {
    if (menusize) delete[] (Fl_Menu_Item*)(((Fl_Menu_*)o)->menu());
  }
  void add_child(Fl_Type*, Fl_Type*) {build_menu();}
  void move_child(Fl_Type*, Fl_Type*) {build_menu();}
  void remove_child(Fl_Type*) {build_menu();}
  Fl_Type* click_test(int x, int y);
  void write_code2();
};

extern Fl_Menu_Item button_type_menu[];

#include <FL/Fl_Menu_Button.H>
class Fl_Menu_Button_Type : public Fl_Menu_Type {
  Fl_Menu_Item *subtypes() {return button_type_menu;}
public:
  virtual const char *type_name() {return "Fl_Menu_Button";}
  Fl_Widget *widget(int x,int y,int w,int h) {
    return new Fl_Menu_Button(x,y,w,h,"menu");}
  Fl_Widget_Type *_make() {return new Fl_Menu_Button_Type();}
};

extern Fl_Menu_Item dummymenu[];

#include <FL/Fl_Choice.H>
class Fl_Choice_Type : public Fl_Menu_Type {
public:
  virtual const char *type_name() {return "Fl_Choice";}
  Fl_Widget *widget(int x,int y,int w,int h) {
    Fl_Choice *o = new Fl_Choice(x,y,w,h,"choice:");
    o->menu(dummymenu);
    return o;
  }
  Fl_Widget_Type *_make() {return new Fl_Choice_Type();}
};

#include <FL/Fl_Menu_Bar.H>
class Fl_Menu_Bar_Type : public Fl_Menu_Type {
public:
  virtual const char *type_name() {return "Fl_Menu_Bar";}
  Fl_Widget *widget(int x,int y,int w,int h) {
    return new Fl_Menu_Bar(x,y,w,h);}
  Fl_Widget_Type *_make() {return new Fl_Menu_Bar_Type();}
};
// object list operations:
Fl_Widget *make_widget_browser(int x,int y,int w,int h);
extern int modflag;
void delete_all(int selected_only=0);
void selection_changed(Fl_Type* new_current);

// file operations:
void write_word(const char *);
void write_string(const char *,...);
int write_file(const char *, int selected_only = 0);
int write_code(const char *cfile, const char *hfile);

int write_declare(const char *, ...);
int is_id(char);
const char* unique_id(void* o, const char*, const char*, const char*);
void write_c(const char*, ...);
void write_h(const char*, ...);
void write_cstring(const char *);
void write_cstring(const char *,int length);
void write_indent(int n);
void write_open(int);
void write_close(int n);
extern int write_number;
void write_public(int state); // writes pubic:/private: as needed
extern int indentation;
extern const char* indent();

int read_file(const char *, int merge);
const char *read_word(int wantbrace = 0);
void read_error(const char *format, ...);

// check legality of c code (sort of) and return error:
const char *c_check(const char *c, int type = 0);

// replace a string pointer with new value, strips leading/trailing blanks:
int storestring(const char *n, const char * & p, int nostrip=0);

extern int include_H_from_C;

//
// End of "$Id: Fl_Type.h,v 1.5.2.5 1999/09/10 16:40:17 bill Exp $".
//