include/wx/msw/mdi.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/mdi.h
   3 // Purpose:     MDI (Multiple Document Interface) classes
   4 // Author:      Julian Smart
   5 // Modified by: 2008-10-31 Vadim Zeitlin: derive from the base classes
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1997 Julian Smart
   9 //              (c) 2008 Vadim Zeitlin
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef _WX_MSW_MDI_H_
  14 #define _WX_MSW_MDI_H_
  15
  16 #include "wx/frame.h"
  17
  18 class WXDLLIMPEXP_FWD_CORE wxAcceleratorTable;
  19
  20 // ---------------------------------------------------------------------------
  21 // wxMDIParentFrame
  22 // ---------------------------------------------------------------------------
  23
  24 class WXDLLIMPEXP_CORE wxMDIParentFrame : public wxMDIParentFrameBase
  25 {
  26 public:
  27     wxMDIParentFrame() { }
  28     wxMDIParentFrame(wxWindow *parent,
  29                      wxWindowID id,
  30                      const wxString& title,
  31                      const wxPoint& pos = wxDefaultPosition,
  32                      const wxSize& size = wxDefaultSize,
  33                      long style = wxDEFAULT_FRAME_STYLE | wxVSCROLL | wxHSCROLL,
  34                      const wxString& name = wxFrameNameStr)
  35     {
  36         Create(parent, id, title, pos, size, style, name);
  37     }
  38
  39     virtual ~wxMDIParentFrame();
  40
  41     bool Create(wxWindow *parent,
  42                 wxWindowID id,
  43                 const wxString& title,
  44                 const wxPoint& pos = wxDefaultPosition,
  45                 const wxSize& size = wxDefaultSize,
  46                 long style = wxDEFAULT_FRAME_STYLE | wxVSCROLL | wxHSCROLL,
  47                 const wxString& name = wxFrameNameStr);
  48
  49     // override/implement base class [pure] virtual methods
  50     // ----------------------------------------------------
  51
  52     static bool IsTDI() { return false; }
  53
  54     // we don't store the active child in m_currentChild so override this
  55     // function to find it dynamically
  56     virtual wxMDIChildFrame *GetActiveChild() const;
  57
  58     virtual void Cascade();
  59     virtual void Tile(wxOrientation orient = wxHORIZONTAL);
  60     virtual void ArrangeIcons();
  61     virtual void ActivateNext();
  62     virtual void ActivatePrevious();
  63
  64 #if wxUSE_MENUS
  65     virtual void SetWindowMenu(wxMenu* menu);
  66
  67     virtual void DoMenuUpdates(wxMenu* menu = NULL);
  68
  69     // return the active child menu, if any
  70     virtual WXHMENU MSWGetActiveMenu() const;
  71 #endif // wxUSE_MENUS
  72
  73
  74     // implementation only from now on
  75
  76     // MDI helpers
  77     // -----------
  78
  79 #if wxUSE_MENUS
  80     // called by wxMDIChildFrame after it was successfully created
  81     virtual void AddMDIChild(wxMDIChildFrame *child);
  82
  83     // called by wxMDIChildFrame just before it is destroyed
  84     virtual void RemoveMDIChild(wxMDIChildFrame *child);
  85 #endif // wxUSE_MENUS
  86
  87     // handlers
  88     // --------
  89
  90     // Responds to colour changes
  91     void OnSysColourChanged(wxSysColourChangedEvent& event);
  92
  93     void OnSize(wxSizeEvent& event);
  94     void OnIconized(wxIconizeEvent& event);
  95
  96     bool HandleActivate(int state, bool minimized, WXHWND activate);
  97
  98     // override window proc for MDI-specific message processing
  99     virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
 100
 101     virtual WXLRESULT MSWDefWindowProc(WXUINT, WXWPARAM, WXLPARAM);
 102     virtual bool MSWTranslateMessage(WXMSG* msg);
 103
 104 #if wxUSE_MENUS
 105     // override wxFrameBase function to also look in the active child menu bar
 106     // and the "Window" menu
 107     virtual wxMenuItem *FindItemInMenuBar(int menuId) const;
 108 #endif // wxUSE_MENUS
 109
 110 protected:
 111     // override to pass menu/toolbar events to the active child first
 112     virtual bool TryBefore(wxEvent& event);
 113
 114 #if wxUSE_MENUS_NATIVE
 115     virtual void InternalSetMenuBar();
 116 #endif // wxUSE_MENUS_NATIVE
 117
 118     virtual WXHICON GetDefaultIcon() const;
 119
 120     // set the size of the MDI client window to match the frame size
 121     void UpdateClientSize();
 122
 123 private:
 124 #if wxUSE_MENUS
 125     // "Window" menu commands event handlers
 126     void OnMDICommand(wxCommandEvent& event);
 127     void OnMDIChild(wxCommandEvent& event);
 128
 129
 130     // add/remove window menu if we have it (i.e. m_windowMenu != NULL)
 131     void AddWindowMenu();
 132     void RemoveWindowMenu();
 133
 134     // update the window menu (if we have it) to enable or disable the commands
 135     // which only make sense when we have more than one child
 136     void UpdateWindowMenu(bool enable);
 137
 138 #if wxUSE_ACCEL
 139     wxAcceleratorTable *m_accelWindowMenu;
 140 #endif // wxUSE_ACCEL
 141 #endif // wxUSE_MENUS
 142
 143     // return the number of child frames we currently have (maybe 0)
 144     int GetChildFramesCount() const;
 145
 146
 147     friend class WXDLLIMPEXP_FWD_CORE wxMDIChildFrame;
 148
 149     DECLARE_EVENT_TABLE()
 150     DECLARE_DYNAMIC_CLASS(wxMDIParentFrame)
 151     wxDECLARE_NO_COPY_CLASS(wxMDIParentFrame);
 152 };
 153
 154 // ---------------------------------------------------------------------------
 155 // wxMDIChildFrame
 156 // ---------------------------------------------------------------------------
 157
 158 class WXDLLIMPEXP_CORE wxMDIChildFrame : public wxMDIChildFrameBase
 159 {
 160 public:
 161     wxMDIChildFrame() { Init(); }
 162     wxMDIChildFrame(wxMDIParentFrame *parent,
 163                     wxWindowID id,
 164                     const wxString& title,
 165                     const wxPoint& pos = wxDefaultPosition,
 166                     const wxSize& size = wxDefaultSize,
 167                     long style = wxDEFAULT_FRAME_STYLE,
 168                     const wxString& name = wxFrameNameStr)
 169     {
 170         Init();
 171
 172         Create(parent, id, title, pos, size, style, name);
 173     }
 174
 175     bool Create(wxMDIParentFrame *parent,
 176                 wxWindowID id,
 177                 const wxString& title,
 178                 const wxPoint& pos = wxDefaultPosition,
 179                 const wxSize& size = wxDefaultSize,
 180                 long style = wxDEFAULT_FRAME_STYLE,
 181                 const wxString& name = wxFrameNameStr);
 182
 183     virtual ~wxMDIChildFrame();
 184
 185     // implement MDI operations
 186     virtual void Activate();
 187
 188     // Override some frame operations too
 189     virtual void Maximize(bool maximize = true);
 190     virtual void Restore();
 191
 192     virtual bool Show(bool show = true);
 193
 194     // Implementation only from now on
 195     // -------------------------------
 196
 197     // Handlers
 198     bool HandleMDIActivate(long bActivate, WXHWND, WXHWND);
 199     bool HandleWindowPosChanging(void *lpPos);
 200     bool HandleGetMinMaxInfo(void *mmInfo);
 201
 202     virtual WXLRESULT MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
 203     virtual WXLRESULT MSWDefWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
 204     virtual bool MSWTranslateMessage(WXMSG *msg);
 205
 206     virtual void MSWDestroyWindow();
 207
 208     bool ResetWindowStyle(void *vrect);
 209
 210     void OnIdle(wxIdleEvent& event);
 211
 212 protected:
 213     virtual void DoGetScreenPosition(int *x, int *y) const;
 214     virtual void DoGetPosition(int *x, int *y) const;
 215     virtual void DoSetClientSize(int width, int height);
 216     virtual void InternalSetMenuBar();
 217     virtual bool IsMDIChild() const { return true; }
 218     virtual void DetachMenuBar();
 219
 220     virtual WXHICON GetDefaultIcon() const;
 221
 222     // common part of all ctors
 223     void Init();
 224
 225 private:
 226     bool m_needsInitialShow; // Show must be called in idle time after Creation
 227     bool m_needsResize; // flag which tells us to artificially resize the frame
 228
 229     DECLARE_EVENT_TABLE()
 230     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMDIChildFrame)
 231 };
 232
 233 // ---------------------------------------------------------------------------
 234 // wxMDIClientWindow
 235 // ---------------------------------------------------------------------------
 236
 237 class WXDLLIMPEXP_CORE wxMDIClientWindow : public wxMDIClientWindowBase
 238 {
 239 public:
 240     wxMDIClientWindow() { Init(); }
 241
 242     // Note: this is virtual, to allow overridden behaviour.
 243     virtual bool CreateClient(wxMDIParentFrame *parent,
 244                               long style = wxVSCROLL | wxHSCROLL);
 245
 246     // Explicitly call default scroll behaviour
 247     void OnScroll(wxScrollEvent& event);
 248
 249 protected:
 250     virtual void DoSetSize(int x, int y,
 251                            int width, int height,
 252                            int sizeFlags = wxSIZE_AUTO);
 253
 254     void Init() { m_scrollX = m_scrollY = 0; }
 255
 256     int m_scrollX, m_scrollY;
 257
 258 private:
 259     DECLARE_EVENT_TABLE()
 260     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMDIClientWindow)
 261 };
 262
 263 #endif // _WX_MSW_MDI_H_