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     bool HandleCommand(WXWORD id, WXWORD cmd, WXHWND control);
  98
  99     // override window proc for MDI-specific message processing
 100     virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
 101
 102     virtual WXLRESULT MSWDefWindowProc(WXUINT, WXWPARAM, WXLPARAM);
 103     virtual bool MSWTranslateMessage(WXMSG* msg);
 104
 105 #if wxUSE_MENUS
 106     // override wxFrameBase function to also look in the active child menu bar
 107     // and the "Window" menu
 108     virtual wxMenuItem *FindItemInMenuBar(int menuId) const;
 109 #endif // wxUSE_MENUS
 110
 111 protected:
 112 #if wxUSE_MENUS_NATIVE
 113     virtual void InternalSetMenuBar();
 114 #endif // wxUSE_MENUS_NATIVE
 115
 116     virtual WXHICON GetDefaultIcon() const;
 117
 118     // set the size of the MDI client window to match the frame size
 119     void UpdateClientSize();
 120
 121 private:
 122 #if wxUSE_MENUS
 123     // "Window" menu commands event handlers
 124     void OnMDICommand(wxCommandEvent& event);
 125     void OnMDIChild(wxCommandEvent& event);
 126
 127
 128     // add/remove window menu if we have it (i.e. m_windowMenu != NULL)
 129     void AddWindowMenu();
 130     void RemoveWindowMenu();
 131
 132     // update the window menu (if we have it) to enable or disable the commands
 133     // which only make sense when we have more than one child
 134     void UpdateWindowMenu(bool enable);
 135
 136 #if wxUSE_ACCEL
 137     wxAcceleratorTable *m_accelWindowMenu;
 138 #endif // wxUSE_ACCEL
 139 #endif // wxUSE_MENUS
 140
 141     // return the number of child frames we currently have (maybe 0)
 142     int GetChildFramesCount() const;
 143
 144
 145     friend class WXDLLIMPEXP_FWD_CORE wxMDIChildFrame;
 146
 147     DECLARE_EVENT_TABLE()
 148     DECLARE_DYNAMIC_CLASS(wxMDIParentFrame)
 149     wxDECLARE_NO_COPY_CLASS(wxMDIParentFrame);
 150 };
 151
 152 // ---------------------------------------------------------------------------
 153 // wxMDIChildFrame
 154 // ---------------------------------------------------------------------------
 155
 156 class WXDLLIMPEXP_CORE wxMDIChildFrame : public wxMDIChildFrameBase
 157 {
 158 public:
 159     wxMDIChildFrame() { Init(); }
 160     wxMDIChildFrame(wxMDIParentFrame *parent,
 161                     wxWindowID id,
 162                     const wxString& title,
 163                     const wxPoint& pos = wxDefaultPosition,
 164                     const wxSize& size = wxDefaultSize,
 165                     long style = wxDEFAULT_FRAME_STYLE,
 166                     const wxString& name = wxFrameNameStr)
 167     {
 168         Init();
 169
 170         Create(parent, id, title, pos, size, style, name);
 171     }
 172
 173     bool Create(wxMDIParentFrame *parent,
 174                 wxWindowID id,
 175                 const wxString& title,
 176                 const wxPoint& pos = wxDefaultPosition,
 177                 const wxSize& size = wxDefaultSize,
 178                 long style = wxDEFAULT_FRAME_STYLE,
 179                 const wxString& name = wxFrameNameStr);
 180
 181     virtual ~wxMDIChildFrame();
 182
 183     // implement MDI operations
 184     virtual void Activate();
 185
 186     // Override some frame operations too
 187     virtual void Maximize(bool maximize = true);
 188     virtual void Restore();
 189
 190     virtual bool Show(bool show = true);
 191
 192     // Implementation only from now on
 193     // -------------------------------
 194
 195     // Handlers
 196     bool HandleMDIActivate(long bActivate, WXHWND, WXHWND);
 197     bool HandleWindowPosChanging(void *lpPos);
 198     bool HandleGetMinMaxInfo(void *mmInfo);
 199
 200     virtual WXLRESULT MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
 201     virtual WXLRESULT MSWDefWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
 202     virtual bool MSWTranslateMessage(WXMSG *msg);
 203
 204     virtual void MSWDestroyWindow();
 205
 206     bool ResetWindowStyle(void *vrect);
 207
 208     void OnIdle(wxIdleEvent& event);
 209
 210 protected:
 211     virtual void DoGetScreenPosition(int *x, int *y) const;
 212     virtual void DoGetPosition(int *x, int *y) const;
 213     virtual void DoSetClientSize(int width, int height);
 214     virtual void InternalSetMenuBar();
 215     virtual bool IsMDIChild() const { return true; }
 216     virtual void DetachMenuBar();
 217
 218     virtual WXHICON GetDefaultIcon() const;
 219
 220     // common part of all ctors
 221     void Init();
 222
 223 private:
 224     bool m_needsInitialShow; // Show must be called in idle time after Creation
 225     bool m_needsResize; // flag which tells us to artificially resize the frame
 226
 227     DECLARE_EVENT_TABLE()
 228     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMDIChildFrame)
 229 };
 230
 231 // ---------------------------------------------------------------------------
 232 // wxMDIClientWindow
 233 // ---------------------------------------------------------------------------
 234
 235 class WXDLLIMPEXP_CORE wxMDIClientWindow : public wxMDIClientWindowBase
 236 {
 237 public:
 238     wxMDIClientWindow() { Init(); }
 239
 240     // Note: this is virtual, to allow overridden behaviour.
 241     virtual bool CreateClient(wxMDIParentFrame *parent,
 242                               long style = wxVSCROLL | wxHSCROLL);
 243
 244     // Explicitly call default scroll behaviour
 245     void OnScroll(wxScrollEvent& event);
 246
 247 protected:
 248     virtual void DoSetSize(int x, int y,
 249                            int width, int height,
 250                            int sizeFlags = wxSIZE_AUTO);
 251
 252     void Init() { m_scrollX = m_scrollY = 0; }
 253
 254     int m_scrollX, m_scrollY;
 255
 256 private:
 257     DECLARE_EVENT_TABLE()
 258     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMDIClientWindow)
 259 };
 260
 261 #endif // _WX_MSW_MDI_H_