/***********************************************************************
* fmenu.h - Widget FMenu *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2015-2017 Markus Gans *
* *
* The Final Cut is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public License *
* as published by the Free Software Foundation; either version 3 of *
* the License, or (at your option) any later version. *
* *
* The Final Cut 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 Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this program. If not, see *
* . *
***********************************************************************/
/* Inheritance diagram
* ═══════════════════
*
* ▕▔▔▔▔▔▔▔▔▔▏
* ▕ FTerm ▏
* ▕▁▁▁▁▁▁▁▁▁▏
* ▲
* │
* ▕▔▔▔▔▔▔▔▔▔▏ ▕▔▔▔▔▔▔▔▔▔▏
* ▕ FVTerm ▏ ▕ FObject ▏
* ▕▁▁▁▁▁▁▁▁▁▏ ▕▁▁▁▁▁▁▁▁▁▏
* ▲ ▲
* │ │ *▕▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▏
* └─────┬─────┘ ┌ - -▕ FRadioMenuItem ▏
* │ : ▕▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▏
* ▕▔▔▔▔▔▔▔▔▔▏ :
* ▕ FWidget ▏ : *▕▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▏
* ▕▁▁▁▁▁▁▁▁▁▏ ├ - -▕ FCheckMenuItem ▏
* ▲ : ▕▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▏
* │ 1 :
* ▕▔▔▔▔▔▔▔▔▔▏ ▕▔▔▔▔▔▔▔▔▔▔▔▏- ┘ ▕▔▔▔▔▔▔▔▔▔▔▔▏
* ▕ FWindow ▏ ▕ FMenuList ▏- - - -▕ FMenuItem ▏
* ▕▁▁▁▁▁▁▁▁▁▏ ▕▁▁▁▁▁▁▁▁▁▁▁▏1 *▕▁▁▁▁▁▁▁▁▁▁▁▏
* ▲ ▲ 1:
* │ │ :
* └─────┬─────┘ :
* │ 1 :
* ▕▔▔▔▔▔▔▔▏- - - ┘ ▕▔▔▔▔▔▔▔▔▔▔▔▏
* ▕ FMenu ▏- - - - - - - -▕ FMenuItem ▏
* ▕▁▁▁▁▁▁▁▏1 1▕▁▁▁▁▁▁▁▁▁▁▁▏
*/
#ifndef FMENU_H
#define FMENU_H
#if !defined (USE_FINAL_H) && !defined (COMPILE_FINAL_CUT)
#error "Only can be included directly."
#endif
#include "final/fwindow.h"
#include "final/fmenubar.h"
#include "final/fmenulist.h"
#include "final/fmenuitem.h"
//----------------------------------------------------------------------
// class FMenu
//----------------------------------------------------------------------
#pragma pack(push)
#pragma pack(1)
class FMenu : public FWindow, public FMenuList
{
public:
// Constructor
explicit FMenu (FWidget* = 0);
FMenu (const FString&, FWidget* = 0);
// Destructor
virtual ~FMenu();
// Accessors
virtual const char* getClassName() const;
FString getText() const;
FMenuItem* getItem() const;
// Mutators
bool setEnable(bool);
bool setEnable();
bool unsetEnable();
bool setDisable();
void setSelected();
void unsetSelected();
bool setMenuWidget (bool);
bool setMenuWidget();
bool unsetMenuWidget();
void setStatusbarMessage (const FString&);
void setMenu (FMenu*);
void setText (const FString&);
// Inquiries
bool isEnabled() const;
bool isSelected() const;
bool hasHotkey() const;
bool hasMenu() const;
// Methods
void show();
void hide();
// Event handlers
void onKeyPress (FKeyEvent*);
void onMouseDown (FMouseEvent*);
void onMouseUp (FMouseEvent*);
void onMouseMove (FMouseEvent*);
void onAccel (FAccelEvent*);
// Callback method
void cb_menuitem_toggled (FWidget*, data_ptr);
private:
// Typedef
typedef struct
{
uChar focus_changed : 1;
uChar hide_sub_menu : 1;
uChar mouse_over_menu : 1;
uChar mouse_over_submenu : 1;
uChar mouse_over_supermenu : 1;
uChar mouse_over_menubar : 1;
uChar : 2; // padding bits
} mouseStates;
typedef struct
{
wchar_t* text;
int length;
int hotkeypos;
bool no_underline;
} menuText;
// Constants
static const bool SELECT_ITEM = true;
// Disable copy constructor
FMenu (const FMenu&);
// Disable assignment operator (=)
FMenu& operator = (const FMenu&);
// Accessors
FWidget* getSuperMenu() const;
// Mutators
void setSuperMenu (FWidget*);
// Inquiries
bool isWindowsMenu (FWidget*) const;
bool isMenuBar (FWidget*) const;
bool isMenu (FWidget*) const;
bool isRadioMenuItem (FWidget*) const;
bool isSubMenu() const;
bool isMouseOverMenu (const FPoint&);
bool isMouseOverSubMenu (const FPoint&);
bool isMouseOverSuperMenu (const FPoint&);
bool isMouseOverMenuBar (const FPoint&);
// Methods
void init(FWidget*);
void calculateDimensions();
void adjustItems();
int adjustX(int);
void openSubMenu (FMenu*, bool = false);
void closeOpenedSubMenu();
void hideSubMenus();
void hideSuperMenus();
bool mouseDownOverList (FPoint);
bool mouseUpOverList (FPoint);
bool mouseMoveOverList (FPoint, mouseStates&);
void mouseUpOverBorder();
void mouseMoveOverBorder (mouseStates&);
void passEventToSubMenu (FMouseEvent*& ev);
void passEventToSuperMenu (FMouseEvent*& ev);
void passEventToMenuBar (FMouseEvent*& ev);
bool containsMenuStructure (const FPoint&);
bool containsMenuStructure (int, int);
FMenu* superMenuAt (const FPoint&);
FMenu* superMenuAt (int, int);
bool selectNextItem();
bool selectPrevItem();
void keypressMenuBar (FKeyEvent*);
bool hotkeyMenu (FKeyEvent*);
int getHotkeyPos (wchar_t[], wchar_t[], uInt);
void draw();
void drawItems();
void drawSeparator (int);
void drawMenuLine (FMenuItem*, int);
void drawCheckMarkPrefix (FMenuItem*);
void drawMenuText (menuText&);
void drawSubMenuIndicator (int&);
void drawAcceleratorKey (int&, int);
void drawTrailingSpaces (int);
void setLineAttributes (FMenuItem*, int);
void setCursorToHotkeyPosition (FMenuItem*);
void keyUp();
void keyDown();
void keyLeft (FKeyEvent*);
void keyRight (FKeyEvent*);
void keyEnter();
void keyEscape();
void processActivate();
// Friend classes
friend class FApplication;
friend class FCheckMenuItem;
friend class FDialog;
friend class FMenuBar;
friend class FMenuItem;
friend class FRadioMenuItem;
// Data Members
FMenuItem* item;
FWidget* super_menu;
FMenu* opened_sub_menu;
FMenu* shown_sub_menu;
uInt max_item_width;
int hotkeypos;
bool mouse_down;
bool has_checkable_items;
};
#pragma pack(pop)
// FMenu inline functions
//----------------------------------------------------------------------
inline const char* FMenu::getClassName() const
{ return "FMenu"; }
//----------------------------------------------------------------------
inline FString FMenu::getText() const
{ return item->getText(); }
//----------------------------------------------------------------------
inline FMenuItem* FMenu::getItem() const
{ return item; }
//----------------------------------------------------------------------
inline bool FMenu::setEnable(bool on)
{ return item->setEnable(on); }
//----------------------------------------------------------------------
inline bool FMenu::setEnable()
{ return item->setEnable(); }
//----------------------------------------------------------------------
inline bool FMenu::unsetEnable()
{ return item->unsetEnable(); }
//----------------------------------------------------------------------
inline bool FMenu::setDisable()
{ return item->setDisable(); }
//----------------------------------------------------------------------
inline void FMenu::setSelected()
{ item->setSelected(); }
//----------------------------------------------------------------------
inline void FMenu::unsetSelected()
{ item->unsetSelected(); }
//----------------------------------------------------------------------
inline bool FMenu::setMenuWidget()
{ return setMenuWidget(true); }
//----------------------------------------------------------------------
inline bool FMenu::unsetMenuWidget()
{ return setMenuWidget(false); }
//----------------------------------------------------------------------
inline void FMenu::setMenu (FMenu* m)
{ item->setMenu(m); }
//----------------------------------------------------------------------
inline void FMenu::setText (const FString& txt)
{ item->setText(txt); }
//----------------------------------------------------------------------
inline bool FMenu::isEnabled() const
{ return item->isEnabled(); }
//----------------------------------------------------------------------
inline bool FMenu::isSelected() const
{ return item->isSelected(); }
//----------------------------------------------------------------------
inline bool FMenu::hasHotkey() const
{ return item->hasHotkey(); }
//----------------------------------------------------------------------
inline bool FMenu::hasMenu() const
{ return item->hasMenu(); }
//----------------------------------------------------------------------
inline FWidget* FMenu::getSuperMenu() const
{ return super_menu; }
//----------------------------------------------------------------------
inline void FMenu::setSuperMenu (FWidget* smenu)
{ super_menu = smenu; }
//----------------------------------------------------------------------
inline bool FMenu::containsMenuStructure (const FPoint& p)
{ return containsMenuStructure (p.getX(), p.getY()); }
//----------------------------------------------------------------------
inline FMenu* FMenu::superMenuAt (const FPoint& p)
{ return superMenuAt (p.getX(), p.getY()); }
//----------------------------------------------------------------------
inline void FMenu::onAccel (FAccelEvent* ev)
{ item->onAccel(ev); }
#endif // FMENU_H