/////////////////////////////////////////////////////////////////////////////
// Name:        mdi.h
// Purpose:     MDI (Multiple Document Interface) classes.
// Author:      Julian Smart
// Modified by:
// Created:     17/09/98
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:   	wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_MDI_H_
#define _WX_MDI_H_

#ifdef __GNUG__
#pragma interface "mdi.h"
#endif

/*
New MDI scheme using tabs. We can use a wxNotebook to implement the client
window. wxMDIChildFrame can be implemented as an XmMainWindow widget
as before, and is a child of the notebook _and_ of the parent frame...
but wxMDIChildFrame::GetParent should return the parent frame.

*/

#include "wx/frame.h"
#include "wx/notebook.h"

WXDLLEXPORT_DATA(extern const char*) wxFrameNameStr;
WXDLLEXPORT_DATA(extern const char*) wxStatusLineNameStr;

class WXDLLEXPORT wxMDIClientWindow;
class WXDLLEXPORT wxMDIChildFrame;

class WXDLLEXPORT wxMDIParentFrame: public wxFrame
{
    DECLARE_DYNAMIC_CLASS(wxMDIParentFrame)
        
        friend class WXDLLEXPORT wxMDIChildFrame;
public:
    
    wxMDIParentFrame();
    inline wxMDIParentFrame(wxWindow *parent,
        wxWindowID id,
        const wxString& title,
        const wxPoint& pos = wxDefaultPosition,
        const wxSize& size = wxDefaultSize,
        long style = wxDEFAULT_FRAME_STYLE | wxVSCROLL | wxHSCROLL,  // Scrolling refers to client window
        const wxString& name = wxFrameNameStr)
    {
        Create(parent, id, title, pos, size, style, name);
    }
    
    ~wxMDIParentFrame();
    
    bool Create(wxWindow *parent,
        wxWindowID id,
        const wxString& title,
        const wxPoint& pos = wxDefaultPosition,
        const wxSize& size = wxDefaultSize,
        long style = wxDEFAULT_FRAME_STYLE | wxVSCROLL | wxHSCROLL,
        const wxString& name = wxFrameNameStr);
    
    void OnSize(wxSizeEvent& event);
    void OnActivate(wxActivateEvent& event);
    void OnSysColourChanged(wxSysColourChangedEvent& event);
    void OnMenuHighlight(wxMenuEvent& event);
    
    void SetMenuBar(wxMenuBar *menu_bar);
    
    // Get the active MDI child window
    wxMDIChildFrame *GetActiveChild() const ;
    
    // Get the client window
    wxMDIClientWindow *GetClientWindow() const { return m_clientWindow; };
    
    // Create the client window class (don't Create the window,
    // just return a new class)
    virtual wxMDIClientWindow *OnCreateClient() ;
    
    // MDI operations
    virtual void Cascade();
    virtual void Tile();
    virtual void ArrangeIcons();
    virtual void ActivateNext();
    virtual void ActivatePrevious();
    
    // Implementation
    
    // Set the active child
    inline void SetActiveChild(wxMDIChildFrame* child) { m_activeChild = child; }
    
    // Set the child's menubar into the parent frame
    void SetChildMenuBar(wxMDIChildFrame* frame);
    
    inline wxMenuBar* GetActiveMenuBar() const { return m_activeMenuBar; }
    
    // Redirect events to active child first
    virtual bool ProcessEvent(wxEvent& event);
    
protected:
    virtual void DoSetSize(int x, int y,
        int width, int height,
        int sizeFlags = wxSIZE_AUTO);
    virtual void DoSetClientSize(int width, int height);
    
    // Gets the size available for subwindows after menu size, toolbar size
    // and status bar size have been subtracted. If you want to manage your own
    // toolbar(s), don't call SetToolBar.
    void DoGetClientSize(int *width, int *height) const;
    
protected:
    
    wxMDIClientWindow*    m_clientWindow;
    wxMDIChildFrame*      m_activeChild;
    wxMenuBar*            m_activeMenuBar;
    
    DECLARE_EVENT_TABLE()
};

class WXDLLEXPORT wxMDIChildFrame: public wxFrame
{
    DECLARE_DYNAMIC_CLASS(wxMDIChildFrame)
        
public:
    wxMDIChildFrame();
    wxMDIChildFrame(wxMDIParentFrame *parent,
        wxWindowID id,
        const wxString& title,
        const wxPoint& pos = wxDefaultPosition,
        const wxSize& size = wxDefaultSize,
        long style = wxDEFAULT_FRAME_STYLE,
        const wxString& name = wxFrameNameStr)
    {
        Create(parent, id, title, pos, size, style, name);
    }
    
    ~wxMDIChildFrame();
    
    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);
    
    // Set menu bar
    void SetMenuBar(wxMenuBar *menu_bar);
    void SetTitle(const wxString& title);
    
    // Set icon
    virtual void SetIcon(const wxIcon& icon);
    virtual void SetIcons(const wxIconBundle& icons );

    // Override wxFrame operations
    void CaptureMouse();
    void ReleaseMouse();
    void Raise();
    void Lower(void);
    void SetSizeHints(int minW = -1, int minH = -1, int maxW = -1, int maxH = -1, int incW = -1, int incH = -1);
    
    // MDI operations
    virtual void Maximize();
    virtual void Maximize(bool WXUNUSED(maximize)) { };
    inline void Minimize() { Iconize(TRUE); };
    virtual void Iconize(bool iconize);
    virtual void Restore();
    virtual void Activate();
    virtual bool IsIconized() const ;
    
    virtual bool IsTopLevel() const { return FALSE; }
    
    // Is the frame maximized? Returns TRUE for
    // wxMDIChildFrame due to the tabbed implementation.
    virtual bool IsMaximized(void) const ;
    
    bool Show(bool show);
    
    WXWidget GetMainWidget() const { return m_mainWidget; };
    WXWidget GetTopWidget() const { return m_mainWidget; };
    WXWidget GetClientWidget() const { return m_mainWidget; };
    
    /*
    virtual void OnRaise();
    virtual void OnLower();
    */
    
    void SetMDIParentFrame(wxMDIParentFrame* parentFrame) { m_mdiParentFrame = parentFrame; }
    wxMDIParentFrame* GetMDIParentFrame() const { return m_mdiParentFrame; }
    
protected:
    wxMDIParentFrame* m_mdiParentFrame;
    
    virtual void DoSetSize(int x, int y,
        int width, int height,
        int sizeFlags = wxSIZE_AUTO);
    virtual void DoSetClientSize(int width, int height);
    
    void DoGetClientSize(int *width, int *height) const;
    void DoGetSize(int *width, int *height) const;
    void DoGetPosition(int *x, int *y) const ;
};

/* The client window is a child of the parent MDI frame, and itself
* contains the child MDI frames.
* However, you create the MDI children as children of the MDI parent:
* only in the implementation does the client window become the parent
* of the children. Phew! So the children are sort of 'adopted'...
*/

class WXDLLEXPORT wxMDIClientWindow: public wxNotebook
{
    DECLARE_DYNAMIC_CLASS(wxMDIClientWindow)
        
public:
    wxMDIClientWindow() ;
    wxMDIClientWindow(wxMDIParentFrame *parent, long style = 0)
    {
        CreateClient(parent, style);
    }
    
    ~wxMDIClientWindow();
    
    // Note: this is virtual, to allow overridden behaviour.
    virtual bool CreateClient(wxMDIParentFrame *parent, long style = wxVSCROLL | wxHSCROLL);
    
    // Explicitly call default scroll behaviour
    void OnScroll(wxScrollEvent& event);
    
    // Implementation
    void OnPageChanged(wxNotebookEvent& event);

    int FindPage(const wxNotebookPage* page);
    
protected:
    virtual void DoSetSize(int x, int y,
        int width, int height,
        int sizeFlags = wxSIZE_AUTO);
    virtual void DoSetClientSize(int width, int height);
    
    void DoGetClientSize(int *width, int *height) const;
    void DoGetSize(int *width, int *height) const ;
    void DoGetPosition(int *x, int *y) const ;
    
private:
    DECLARE_EVENT_TABLE()
};

#endif
// _WX_MDI_H_