420 lines
14 KiB
C++
420 lines
14 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/mdi.h
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// Purpose: wxMDI base header
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// Author: Julian Smart (original)
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// Vadim Zeitlin (base MDI classes refactoring)
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// Copyright: (c) 1998 Julian Smart
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// (c) 2008 Vadim Zeitlin
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_MDI_H_BASE_
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#define _WX_MDI_H_BASE_
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#include "wx/defs.h"
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#if wxUSE_MDI
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#include "wx/frame.h"
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#include "wx/menu.h"
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// forward declarations
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class WXDLLIMPEXP_FWD_CORE wxMDIParentFrame;
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class WXDLLIMPEXP_FWD_CORE wxMDIChildFrame;
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class WXDLLIMPEXP_FWD_CORE wxMDIClientWindowBase;
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class WXDLLIMPEXP_FWD_CORE wxMDIClientWindow;
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// ----------------------------------------------------------------------------
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// wxMDIParentFrameBase: base class for parent frame for MDI children
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxMDIParentFrameBase : public wxFrame
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{
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public:
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wxMDIParentFrameBase()
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{
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m_clientWindow = NULL;
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m_currentChild = NULL;
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#if wxUSE_MENUS
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m_windowMenu = NULL;
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#endif // wxUSE_MENUS
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}
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/*
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Derived classes should provide ctor and Create() with the following
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declaration:
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bool Create(wxWindow *parent,
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wxWindowID winid,
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const wxString& title,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = wxDEFAULT_FRAME_STYLE | wxVSCROLL | wxHSCROLL,
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const wxString& name = wxFrameNameStr);
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*/
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#if wxUSE_MENUS
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virtual ~wxMDIParentFrameBase()
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{
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delete m_windowMenu;
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}
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#endif // wxUSE_MENUS
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// accessors
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// ---------
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// Get or change the active MDI child window
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virtual wxMDIChildFrame *GetActiveChild() const
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{ return m_currentChild; }
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virtual void SetActiveChild(wxMDIChildFrame *child)
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{ m_currentChild = child; }
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// Get the client window
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wxMDIClientWindowBase *GetClientWindow() const { return m_clientWindow; }
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// MDI windows menu functions
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// --------------------------
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#if wxUSE_MENUS
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// return the pointer to the current window menu or NULL if we don't have
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// because of wxFRAME_NO_WINDOW_MENU style
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wxMenu* GetWindowMenu() const { return m_windowMenu; }
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// use the given menu instead of the default window menu
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//
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// menu can be NULL to disable the window menu completely
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virtual void SetWindowMenu(wxMenu *menu)
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{
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if ( menu != m_windowMenu )
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{
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delete m_windowMenu;
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m_windowMenu = menu;
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}
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}
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#endif // wxUSE_MENUS
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// standard MDI window management functions
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// ----------------------------------------
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virtual void Cascade() { }
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virtual void Tile(wxOrientation WXUNUSED(orient) = wxHORIZONTAL) { }
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virtual void ArrangeIcons() { }
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virtual void ActivateNext() = 0;
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virtual void ActivatePrevious() = 0;
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/*
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Derived classes must provide the following function:
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static bool IsTDI();
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*/
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// Create the client window class (don't Create() the window here, just
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// return a new object of a wxMDIClientWindow-derived class)
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//
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// Notice that if you override this method you should use the default
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// constructor and Create() and not the constructor creating the window
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// when creating the frame or your overridden version is not going to be
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// called (as the call to a virtual function from ctor will be dispatched
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// to this class version)
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virtual wxMDIClientWindow *OnCreateClient();
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protected:
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// Override to pass menu/toolbar events to the active child first.
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virtual bool TryBefore(wxEvent& event) wxOVERRIDE;
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// This is wxMDIClientWindow for all the native implementations but not for
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// the generic MDI version which has its own wxGenericMDIClientWindow and
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// so we store it as just a base class pointer because we don't need its
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// exact type anyhow
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wxMDIClientWindowBase *m_clientWindow;
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wxMDIChildFrame *m_currentChild;
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#if wxUSE_MENUS
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// the current window menu or NULL if we are not using it
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wxMenu *m_windowMenu;
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#endif // wxUSE_MENUS
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};
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// ----------------------------------------------------------------------------
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// wxMDIChildFrameBase: child frame managed by wxMDIParentFrame
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxMDIChildFrameBase : public wxFrame
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{
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public:
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wxMDIChildFrameBase() { m_mdiParent = NULL; }
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/*
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Derived classes should provide Create() with the following signature:
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bool Create(wxMDIParentFrame *parent,
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wxWindowID id,
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const wxString& title,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = wxDEFAULT_FRAME_STYLE,
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const wxString& name = wxFrameNameStr);
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And setting m_mdiParent to parent parameter.
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*/
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// MDI children specific methods
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virtual void Activate() = 0;
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// Return the MDI parent frame: notice that it may not be the same as
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// GetParent() (our parent may be the client window or even its subwindow
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// in some implementations)
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wxMDIParentFrame *GetMDIParent() const { return m_mdiParent; }
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// Synonym for GetMDIParent(), was used in some other ports
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wxMDIParentFrame *GetMDIParentFrame() const { return GetMDIParent(); }
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// in most ports MDI children frames are not really top-level, the only
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// exception are the Mac ports in which MDI children are just normal top
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// level windows too
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virtual bool IsTopLevel() const wxOVERRIDE { return false; }
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// In all ports keyboard navigation must stop at MDI child frame level and
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// can't cross its boundary. Indicate this by overriding this function to
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// return true.
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virtual bool IsTopNavigationDomain(NavigationKind kind) const wxOVERRIDE
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{
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switch ( kind )
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{
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case Navigation_Tab:
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return true;
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case Navigation_Accel:
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// Parent frame accelerators should work inside MDI child, so
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// don't block their processing by returning true for them.
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break;
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}
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return false;
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}
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// Raising any frame is supposed to show it but wxFrame Raise()
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// implementation doesn't work for MDI child frames in most forms so
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// forward this to Activate() which serves the same purpose by default.
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virtual void Raise() wxOVERRIDE { Activate(); }
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protected:
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wxMDIParentFrame *m_mdiParent;
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};
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// ----------------------------------------------------------------------------
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// wxTDIChildFrame: child frame used by TDI implementations
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxTDIChildFrame : public wxMDIChildFrameBase
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{
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public:
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// override wxFrame methods for this non top-level window
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#if wxUSE_STATUSBAR
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// no status bars
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//
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// TODO: MDI children should have their own status bars, why not?
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virtual wxStatusBar* CreateStatusBar(int WXUNUSED(number) = 1,
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long WXUNUSED(style) = 1,
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wxWindowID WXUNUSED(id) = 1,
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const wxString& WXUNUSED(name)
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= wxEmptyString) wxOVERRIDE
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{ return NULL; }
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virtual wxStatusBar *GetStatusBar() const wxOVERRIDE
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{ return NULL; }
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virtual void SetStatusText(const wxString &WXUNUSED(text),
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int WXUNUSED(number)=0) wxOVERRIDE
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{ }
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virtual void SetStatusWidths(int WXUNUSED(n),
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const int WXUNUSED(widths)[]) wxOVERRIDE
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{ }
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#endif // wxUSE_STATUSBAR
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#if wxUSE_TOOLBAR
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// no toolbar
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//
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// TODO: again, it should be possible to have tool bars
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virtual wxToolBar *CreateToolBar(long WXUNUSED(style),
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wxWindowID WXUNUSED(id),
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const wxString& WXUNUSED(name)) wxOVERRIDE
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{ return NULL; }
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virtual wxToolBar *GetToolBar() const wxOVERRIDE { return NULL; }
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#endif // wxUSE_TOOLBAR
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// no icon
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virtual void SetIcons(const wxIconBundle& WXUNUSED(icons)) wxOVERRIDE { }
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// title is used as the tab label
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virtual wxString GetTitle() const wxOVERRIDE { return m_title; }
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virtual void SetTitle(const wxString& title) wxOVERRIDE = 0;
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// no maximize etc
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virtual void Maximize(bool WXUNUSED(maximize) = true) wxOVERRIDE { }
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virtual bool IsMaximized() const wxOVERRIDE { return true; }
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virtual bool IsAlwaysMaximized() const wxOVERRIDE { return true; }
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virtual void Iconize(bool WXUNUSED(iconize) = true) wxOVERRIDE { }
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virtual bool IsIconized() const wxOVERRIDE { return false; }
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virtual void Restore() wxOVERRIDE { }
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virtual bool ShowFullScreen(bool WXUNUSED(show),
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long WXUNUSED(style)) wxOVERRIDE { return false; }
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virtual bool IsFullScreen() const wxOVERRIDE { return false; }
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// we need to override these functions to ensure that a child window is
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// created even though we derive from wxFrame -- basically we make it
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// behave as just a wxWindow by short-circuiting wxTLW changes to the base
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// class behaviour
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virtual void AddChild(wxWindowBase *child) wxOVERRIDE { wxWindow::AddChild(child); }
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virtual bool Destroy() wxOVERRIDE { return wxWindow::Destroy(); }
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// extra platform-specific hacks
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#ifdef __WXMSW__
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virtual WXDWORD MSWGetStyle(long flags, WXDWORD *exstyle = NULL) const
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{
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return wxWindow::MSWGetStyle(flags, exstyle);
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}
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virtual WXHWND MSWGetParent() const
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{
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return wxWindow::MSWGetParent();
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}
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WXLRESULT MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
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{
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return wxWindow::MSWWindowProc(message, wParam, lParam);
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}
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#endif // __WXMSW__
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protected:
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virtual void DoGetSize(int *width, int *height) const wxOVERRIDE
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{
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wxWindow::DoGetSize(width, height);
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}
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virtual void DoSetSize(int x, int y, int width, int height, int sizeFlags) wxOVERRIDE
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{
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wxWindow::DoSetSize(x, y, width, height, sizeFlags);
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}
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virtual void DoGetClientSize(int *width, int *height) const wxOVERRIDE
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{
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wxWindow::DoGetClientSize(width, height);
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}
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virtual void DoSetClientSize(int width, int height) wxOVERRIDE
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{
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wxWindow::DoSetClientSize(width, height);
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}
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virtual void DoMoveWindow(int x, int y, int width, int height) wxOVERRIDE
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{
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wxWindow::DoMoveWindow(x, y, width, height);
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}
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// no size hints
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virtual void DoSetSizeHints(int WXUNUSED(minW), int WXUNUSED(minH),
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int WXUNUSED(maxW), int WXUNUSED(maxH),
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int WXUNUSED(incW), int WXUNUSED(incH)) wxOVERRIDE { }
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wxString m_title;
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};
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// ----------------------------------------------------------------------------
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// wxMDIClientWindowBase: child of parent frame, parent of children frames
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxMDIClientWindowBase : public wxWindow
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{
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public:
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/*
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The derived class must provide the default ctor only (CreateClient()
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will be called later).
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*/
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// Can be overridden in the derived classes but the base class version must
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// be usually called first to really create the client window.
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virtual bool CreateClient(wxMDIParentFrame *parent,
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long style = wxVSCROLL | wxHSCROLL) = 0;
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};
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// ----------------------------------------------------------------------------
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// Include the port-specific implementation of the base classes defined above
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// ----------------------------------------------------------------------------
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// wxUSE_GENERIC_MDI_AS_NATIVE may be predefined to force the generic MDI
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// implementation use even on the platforms which usually don't use it
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//
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// notice that generic MDI can still be used without this, but you would need
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// to explicitly use wxGenericMDIXXX classes in your code (and currently also
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// add src/generic/mdig.cpp to your build as it's not compiled in if generic
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// MDI is not used by default -- but this may change later...)
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#ifndef wxUSE_GENERIC_MDI_AS_NATIVE
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// wxUniv always uses the generic MDI implementation and so do the ports
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// without native version (although wxCocoa seems to have one -- but it's
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// probably not functional?)
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#if defined(__WXMOTIF__) || \
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defined(__WXUNIVERSAL__)
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#define wxUSE_GENERIC_MDI_AS_NATIVE 1
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#else
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#define wxUSE_GENERIC_MDI_AS_NATIVE 0
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#endif
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#endif // wxUSE_GENERIC_MDI_AS_NATIVE
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#if wxUSE_GENERIC_MDI_AS_NATIVE
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#include "wx/generic/mdig.h"
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#elif defined(__WXMSW__)
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#include "wx/msw/mdi.h"
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#elif defined(__WXGTK20__)
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#include "wx/gtk/mdi.h"
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#elif defined(__WXGTK__)
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#include "wx/gtk1/mdi.h"
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#elif defined(__WXMAC__)
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#include "wx/osx/mdi.h"
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#elif defined(__WXQT__)
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#include "wx/qt/mdi.h"
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#endif
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inline wxMDIClientWindow *wxMDIParentFrameBase::OnCreateClient()
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{
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return new wxMDIClientWindow;
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}
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inline bool wxMDIParentFrameBase::TryBefore(wxEvent& event)
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{
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// Menu (and toolbar) events should be sent to the active child frame
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// first, if any.
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if ( event.GetEventType() == wxEVT_MENU ||
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event.GetEventType() == wxEVT_UPDATE_UI )
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{
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wxMDIChildFrame * const child = GetActiveChild();
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if ( child )
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{
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// However avoid sending the event back to the child if it's
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// currently being propagated to us from it.
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wxWindow* const
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from = static_cast<wxWindow*>(event.GetPropagatedFrom());
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if ( !from || !from->IsDescendant(child) )
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{
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if ( child->ProcessWindowEventLocally(event) )
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return true;
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}
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}
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}
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return wxFrame::TryBefore(event);
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}
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#endif // wxUSE_MDI
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#endif // _WX_MDI_H_BASE_
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