wxWidgets/include/wx/mdi.h
Paul Cornett 8b4ae731d3 use wxOVERRIDE
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76220 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2014-03-30 00:02:23 +00:00

408 lines
14 KiB
C++

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