// File: fdialog.h
// Provides: class FDialog
//
//  Inheritance diagram
//  ═══════════════════
//
// ▕▔▔▔▔▔▔▔▔▔▏ ▕▔▔▔▔▔▔▔▔▔▏
// ▕ FObject ▏ ▕  FTerm  ▏
// ▕▁▁▁▁▁▁▁▁▁▏ ▕▁▁▁▁▁▁▁▁▁▏
//      ▲           ▲
//      │           │
//      └─────┬─────┘
//            │
//       ▕▔▔▔▔▔▔▔▔▏
//       ▕ FVTerm ▏
//       ▕▁▁▁▁▁▁▁▁▏
//            ▲
//            │
//       ▕▔▔▔▔▔▔▔▔▔▏
//       ▕ FWidget ▏
//       ▕▁▁▁▁▁▁▁▁▁▏
//            ▲
//            │
//       ▕▔▔▔▔▔▔▔▔▔▏
//       ▕ FWindow ▏
//       ▕▁▁▁▁▁▁▁▁▁▏
//            ▲
//            │
//       ▕▔▔▔▔▔▔▔▔▔▏
//       ▕ FDialog ▏
//       ▕▁▁▁▁▁▁▁▁▁▏

#ifndef _FDIALOG_H
#define _FDIALOG_H

#include "fmenu.h"
#include "fmenuitem.h"
#include "ftooltip.h"
#include "fwindow.h"


//----------------------------------------------------------------------
// class FDialog
//----------------------------------------------------------------------

#pragma pack(push)
#pragma pack(1)

class FDialog : public FWindow
{
 public:
    // Using-declaration
   using FWindow::setResizeable;
   using FWindow::move;
   using FWindow::setPos;

   // Enumeration
   enum DialogCode
   {
     Reject = 0,
     Accept = 1
   };

   // Constructors
   explicit FDialog (FWidget* = 0);
   FDialog (const FString&, FWidget* = 0);

   // Destructor
   virtual ~FDialog();

   // Accessors
   virtual const char* getClassName() const;
   FString             getText() const;

   // Mutators
   bool                setFocus (bool);
   bool                setFocus();
   bool                unsetFocus();
   bool                setDialogWidget (bool);
   bool                setDialogWidget();
   bool                unsetDialogWidget();
   bool                setModal (bool);
   bool                setModal();
   bool                unsetModal();
   bool                setResizeable (bool);
   bool                setScrollable (bool);
   bool                setScrollable();
   bool                unsetScrollable();
   void                setText (const FString&);

   // Inquiries
   bool                isModal();
   bool                isScrollable();

   // Methods
   void                show();
   void                hide();
   int                 exec();
   void                setPos (int, int, bool = true);
   void                move (int, int);
   void                setSize (int, int, bool = true);
   void                activateDialog();

   // Event handlers
   void                onKeyPress (FKeyEvent*);
   void                onMouseDown (FMouseEvent*);
   void                onMouseUp (FMouseEvent*);
   void                onMouseMove (FMouseEvent*);
   void                onMouseDoubleClick (FMouseEvent*);
   void                onAccel (FAccelEvent*);
   void                onWindowActive (FEvent*);
   void                onWindowInactive (FEvent*);
   void                onWindowRaised (FEvent*);
   void                onWindowLowered (FEvent*);

 protected:
   // Methods
   virtual void        done (int);
   virtual void        draw();
   void                drawDialogShadow();

   // Event handlers
   virtual void        onShow (FShowEvent*);
   virtual void        onHide (FHideEvent*);
   virtual void        onClose (FCloseEvent*);

 private:
   // Using-declaration
   using FWidget::drawBorder;

   // Disable copy constructor
   FDialog (const FDialog&);

   // Disable assignment operator (=)
   FDialog& operator = (const FDialog&);

   // Methods
   void                init();
   virtual void        drawBorder();
   void                drawTitleBar();
   void                leaveMenu();
   void                openMenu();
   void                selectFirstMenuItem();
   void                setZoomItem();
   static void         addDialog (FWidget*);
   static void         delDialog (FWidget*);

   // Callback methods
   void                cb_move (FWidget*, void*);
   void                cb_zoom (FWidget*, void*);
   void                cb_close (FWidget*, void*);

   // Data Members
   FString             tb_text;        // title bar text
   int                 result_code;
   bool                zoom_button_pressed;
   bool                zoom_button_active;
   FPoint              titlebar_click_pos;
   FPoint              resize_click_pos;
   FRect               save_geometry;  // required by keyboard move/size
   FMenu*              dialog_menu;
   FMenuItem*          dgl_menuitem;
   FMenuItem*          move_size_item;
   FMenuItem*          zoom_item;
   FMenuItem*          close_item;
   FToolTip*           tooltip;

   // Friend function from FMenu
   friend void FMenu::hideSuperMenus();
};
#pragma pack(pop)

// FDialog inline functions
//----------------------------------------------------------------------
inline const char* FDialog::getClassName() const
{ return "FDialog"; }

//----------------------------------------------------------------------
inline FString FDialog::getText() const
{ return tb_text; }

//----------------------------------------------------------------------
inline bool FDialog::setFocus()
{ return setFocus(true); }

//----------------------------------------------------------------------
inline bool FDialog::unsetFocus()
{ return setFocus(false); }

//----------------------------------------------------------------------
inline bool FDialog::setDialogWidget()
{ return setDialogWidget(true); }

//----------------------------------------------------------------------
inline bool FDialog::unsetDialogWidget()
{ return setDialogWidget(false); }

//----------------------------------------------------------------------
inline bool FDialog::setModal()
{ return setModal(true); }

//----------------------------------------------------------------------
inline bool FDialog::unsetModal()
{ return setModal(false); }

//----------------------------------------------------------------------
inline bool FDialog::setScrollable()
{ return setScrollable(true); }

//----------------------------------------------------------------------
inline bool FDialog::unsetScrollable()
{ return setScrollable(false); }

//----------------------------------------------------------------------
inline void FDialog::setText (const FString& txt)
{ tb_text = txt; }

//----------------------------------------------------------------------
inline bool FDialog::isModal()
{ return ((flags & fc::modal) != 0); }

//----------------------------------------------------------------------
inline bool FDialog::isScrollable()
{ return ((flags & fc::scrollable) != 0); }



#endif  // _FDIALOG_H