wxWidgets/include/wx/univ/menu.h
2003-02-02 14:50:05 +00:00

276 lines
8.3 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: wx/univ/menu.h
// Purpose: wxMenu and wxMenuBar classes for wxUniversal
// Author: Vadim Zeitlin
// Modified by:
// Created: 05.05.01
// RCS-ID: $Id$
// Copyright: (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_UNIV_MENU_H_
#define _WX_UNIV_MENU_H_
#ifdef __GNUG__
#pragma interface "univmenu.h"
#endif
#if wxUSE_ACCEL
#include "wx/accel.h"
#endif // wxUSE_ACCEL
#include "wx/dynarray.h"
// fwd declarations
class WXDLLEXPORT wxMenuInfo;
WX_DECLARE_OBJARRAY(wxMenuInfo, wxMenuInfoArray);
class WXDLLEXPORT wxMenuGeometryInfo;
class WXDLLEXPORT wxPopupMenuWindow;
class WXDLLEXPORT wxRenderer;
// ----------------------------------------------------------------------------
// wxMenu
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxMenu : public wxMenuBase
{
public:
// ctors and dtor
wxMenu(const wxString& title, long style = 0)
: wxMenuBase(title, style) { Init(); }
wxMenu(long style = 0) : wxMenuBase(style) { Init(); }
virtual ~wxMenu();
// called by wxMenuItem when an item of this menu changes
void RefreshItem(wxMenuItem *item);
// does the menu have any items?
bool IsEmpty() const { return !GetMenuItems().GetFirst(); }
// show this menu at the given position (in screen coords) and optionally
// select its first item
void Popup(const wxPoint& pos, const wxSize& size,
bool selectFirst = TRUE);
// dismiss the menu
void Dismiss();
// override the base class methods to connect/disconnect event handlers
virtual void Attach(wxMenuBarBase *menubar);
virtual void Detach();
// implementation only from here
// do as if this item were clicked, return TRUE if the resulting event was
// processed, FALSE otherwise
bool ClickItem(wxMenuItem *item);
// process the key event, return TRUE if done
bool ProcessKeyDown(int key);
#if wxUSE_ACCEL
// find the item for the given accel and generate an event if found
bool ProcessAccelEvent(const wxKeyEvent& event);
#endif // wxUSE_ACCEL
protected:
// implement base class virtuals
virtual bool DoAppend(wxMenuItem *item);
virtual bool DoInsert(size_t pos, wxMenuItem *item);
virtual wxMenuItem *DoRemove(wxMenuItem *item);
// common part of DoAppend and DoInsert
void OnItemAdded(wxMenuItem *item);
// called by wxPopupMenuWindow when the window is hidden
void OnDismiss(bool dismissParent);
// return true if the menu is currently shown on screen
bool IsShown() const;
// get the menu geometry info
const wxMenuGeometryInfo& GetGeometryInfo() const;
// forget old menu geometry info
void InvalidateGeometryInfo();
// return either the menubar or the invoking window, normally never NULL
wxWindow *GetRootWindow() const;
// get the renderer we use for drawing: either the one of the menu bar or
// the one of the window if we're a popup menu
wxRenderer *GetRenderer() const;
#if wxUSE_ACCEL
// add/remove accel for the given menu item
void AddAccelFor(wxMenuItem *item);
void RemoveAccelFor(wxMenuItem *item);
#endif // wxUSE_ACCEL
private:
// common part of all ctors
void Init();
// terminate the current radio group, if any
void EndRadioGroup();
// the exact menu geometry is defined by a struct derived from this one
// which is opaque and defined by the renderer
wxMenuGeometryInfo *m_geometry;
// the menu shown on screen or NULL if not currently shown
wxPopupMenuWindow *m_popupMenu;
#if wxUSE_ACCEL
// the accel table for this menu
wxAcceleratorTable m_accelTable;
#endif // wxUSE_ACCEL
// the position of the first item in the current radio group or -1
int m_startRadioGroup;
// it calls out OnDismiss()
friend class wxPopupMenuWindow;
DECLARE_DYNAMIC_CLASS(wxMenu)
};
// ----------------------------------------------------------------------------
// wxMenuBar
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxMenuBar : public wxMenuBarBase
{
public:
// ctors and dtor
wxMenuBar(long WXUNUSED(style) = 0) { Init(); }
virtual ~wxMenuBar();
// implement base class virtuals
virtual bool Append( wxMenu *menu, const wxString &title );
virtual bool Insert(size_t pos, wxMenu *menu, const wxString& title);
virtual wxMenu *Replace(size_t pos, wxMenu *menu, const wxString& title);
virtual wxMenu *Remove(size_t pos);
virtual void EnableTop(size_t pos, bool enable);
virtual bool IsEnabledTop(size_t pos) const;
virtual void SetLabelTop(size_t pos, const wxString& label);
virtual wxString GetLabelTop(size_t pos) const;
virtual void Attach(wxFrame *frame);
virtual void Detach();
// get the next item for the givan accel letter (used by wxFrame), return
// -1 if none
//
// if unique is not NULL, filled with TRUE if there is only one item with
// this accel, FALSE if two or more
int FindNextItemForAccel(int idxStart,
int keycode,
bool *unique = NULL) const;
// called by wxFrame to set focus to or open the given menu
void SelectMenu(size_t pos);
void PopupMenu(size_t pos);
#if wxUSE_ACCEL
// find the item for the given accel and generate an event if found
bool ProcessAccelEvent(const wxKeyEvent& event);
#endif // wxUSE_ACCEL
// called by wxMenu when it is dismissed
void OnDismissMenu(bool dismissMenuBar = FALSE);
protected:
// common part of all ctors
void Init();
// event handlers
void OnLeftDown(wxMouseEvent& event);
void OnMouseMove(wxMouseEvent& event);
void OnKeyDown(wxKeyEvent& event);
void OnKillFocus(wxFocusEvent& event);
// process the mouse move event, return TRUE if we did, FALSE to continue
// processing as usual
//
// the coordinates are client coordinates of menubar, convert if necessary
bool ProcessMouseEvent(const wxPoint& pt);
// called when the menu bar loses mouse capture - it is not hidden unlike
// menus, but it doesn't have modal status any longer
void OnDismiss();
// draw the menubar
virtual void DoDraw(wxControlRenderer *renderer);
// menubar geometry
virtual wxSize DoGetBestClientSize() const;
// has the menubar been created already?
bool IsCreated() const { return m_frameLast != NULL; }
// "fast" version of GetMenuCount()
size_t GetCount() const { return m_menuInfos.GetCount(); }
// get the (total) width of the specified menu
wxCoord GetItemWidth(size_t pos) const;
// get the rect of the item
wxRect GetItemRect(size_t pos) const;
// get the menu from the given point or -1 if none
int GetMenuFromPoint(const wxPoint& pos) const;
// refresh the given item
void RefreshItem(size_t pos);
// refresh all items after this one (including it)
void RefreshAllItemsAfter(size_t pos);
// hide the currently shown menu and show this one
void DoSelectMenu(size_t pos);
// popup the currently selected menu
void PopupCurrentMenu(bool selectFirst = TRUE);
// hide the currently selected menu
void DismissMenu();
// do we show a menu currently?
bool IsShowingMenu() const { return m_menuShown != 0; }
// we don't want to have focus except while selecting from menu
void GiveAwayFocus();
// the array containing extra menu info we need
wxMenuInfoArray m_menuInfos;
// the current item (only used when menubar has focus)
int m_current;
private:
// the last frame to which we were attached, NULL initially
wxFrame *m_frameLast;
// the currently shown menu or NULL
wxMenu *m_menuShown;
// should be showing the menu? this is subtly different from m_menuShown !=
// NULL as the menu which should be shown may be disabled in which case we
// don't show it - but will do as soon as the focus shifts to another menu
bool m_shouldShowMenu;
// it calls out ProcessMouseEvent()
friend class wxPopupMenuWindow;
DECLARE_EVENT_TABLE()
DECLARE_DYNAMIC_CLASS(wxMenuBar)
};
#endif // _WX_UNIV_MENU_H_