include/wx/toplevel.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/toplevel.h
   3 // Purpose:     declares wxTopLevelWindow class, the base class for all
   4 //              top level windows (such as frames and dialogs)
   5 // Author:      Vadim Zeitlin, Vaclav Slavik
   6 // Modified by:
   7 // Created:     06.08.01
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
  10 //                       Vaclav Slavik <vaclav@wxwidgets.org>
  11 // Licence:     wxWindows licence
  12 ///////////////////////////////////////////////////////////////////////////////
  13
  14 #ifndef _WX_TOPLEVEL_BASE_H_
  15 #define _WX_TOPLEVEL_BASE_H_
  16
  17 // ----------------------------------------------------------------------------
  18 // headers
  19 // ----------------------------------------------------------------------------
  20
  21 #include "wx/nonownedwnd.h"
  22 #include "wx/iconbndl.h"
  23 #include "wx/containr.h"
  24 #include "wx/weakref.h"
  25
  26 // the default names for various classes
  27 extern WXDLLIMPEXP_DATA_CORE(const char) wxFrameNameStr[];
  28
  29 class WXDLLIMPEXP_FWD_CORE wxTopLevelWindowBase;
  30
  31 // ----------------------------------------------------------------------------
  32 // constants
  33 // ----------------------------------------------------------------------------
  34
  35 /*
  36     Summary of the bits used (some of them are defined in wx/frame.g and
  37     wx/dialog.h and not here):
  38
  39     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
  40     |15|14|13|12|11|10| 9| 8| 7| 6| 5| 4| 3| 2| 1| 0|
  41     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
  42       |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
  43       |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  \_ wxCENTRE
  44       |  |  |  |  |  |  |  |  |  |  |  |  |  |  \____ wxFRAME_NO_TASKBAR
  45       |  |  |  |  |  |  |  |  |  |  |  |  |  \_______ wxFRAME_TOOL_WINDOW
  46       |  |  |  |  |  |  |  |  |  |  |  |  \__________ wxFRAME_FLOAT_ON_PARENT
  47       |  |  |  |  |  |  |  |  |  |  |  \_____________ wxFRAME_SHAPED
  48       |  |  |  |  |  |  |  |  |  |  \________________
  49       |  |  |  |  |  |  |  |  |  \___________________ wxRESIZE_BORDER
  50       |  |  |  |  |  |  |  |  \______________________ wxTINY_CAPTION_VERT
  51       |  |  |  |  |  |  |  \_________________________ wxDIALOG_NO_PARENT
  52       |  |  |  |  |  |  \____________________________ wxMAXIMIZE_BOX
  53       |  |  |  |  |  \_______________________________ wxMINIMIZE_BOX
  54       |  |  |  |  \__________________________________ wxSYSTEM_MENU
  55       |  |  |  \_____________________________________ wxCLOSE_BOX
  56       |  |  \________________________________________ wxMAXIMIZE
  57       |  \___________________________________________ wxMINIMIZE
  58       \______________________________________________ wxSTAY_ON_TOP
  59
  60
  61     Notice that the 8 lower bits overlap with wxCENTRE and the button selection
  62     bits (wxYES, wxOK wxNO, wxCANCEL, wxAPPLY, wxCLOSE and wxNO_DEFAULT) which
  63     can be combined with the dialog style for several standard dialogs and
  64     hence shouldn't overlap with any styles which can be used for the dialogs.
  65     Additionally, wxCENTRE can be used with frames also.
  66  */
  67
  68 // style common to both wxFrame and wxDialog
  69 #define wxSTAY_ON_TOP           0x8000
  70 #define wxICONIZE               0x4000
  71 #define wxMINIMIZE              wxICONIZE
  72 #define wxMAXIMIZE              0x2000
  73 #define wxCLOSE_BOX             0x1000
  74
  75 #define wxSYSTEM_MENU           0x0800
  76 #define wxMINIMIZE_BOX          0x0400
  77 #define wxMAXIMIZE_BOX          0x0200
  78
  79 #define wxTINY_CAPTION          0x0080  // clashes with wxNO_DEFAULT
  80 #define wxRESIZE_BORDER         0x0040
  81
  82 #if WXWIN_COMPATIBILITY_2_8
  83     // HORIZ and VERT styles are equivalent anyhow so don't use different names
  84     // for them
  85     #define wxTINY_CAPTION_HORIZ    wxTINY_CAPTION
  86     #define wxTINY_CAPTION_VERT     wxTINY_CAPTION
  87 #endif
  88
  89 #if WXWIN_COMPATIBILITY_2_6
  90
  91     // deprecated versions defined for compatibility reasons
  92     #define wxRESIZE_BOX            wxMAXIMIZE_BOX
  93     #define wxTHICK_FRAME           wxRESIZE_BORDER
  94
  95     // obsolete styles, unused any more
  96     #define wxDIALOG_MODAL          0
  97     #define wxDIALOG_MODELESS       0
  98     #define wxNO_3D                 0
  99     #define wxUSER_COLOURS          0
 100
 101 #endif // WXWIN_COMPATIBILITY_2_6
 102
 103 // default style
 104 //
 105 // under Windows CE (at least when compiling with eVC 4) we should create
 106 // top level windows without any styles at all for them to appear
 107 // "correctly", i.e. as full screen windows with a "hide" button (same as
 108 // "close" but round instead of squared and just hides the applications
 109 // instead of closing it) in the title bar
 110 #if defined(__WXWINCE__)
 111     #if defined(__SMARTPHONE__)
 112         #define wxDEFAULT_FRAME_STYLE (wxMAXIMIZE)
 113     #elif defined(__WINCE_STANDARDSDK__)
 114         #define wxDEFAULT_FRAME_STYLE (wxMAXIMIZE|wxCLOSE_BOX)
 115     #else
 116         #define wxDEFAULT_FRAME_STYLE (wxNO_BORDER)
 117     #endif
 118 #else // !__WXWINCE__
 119     #define wxDEFAULT_FRAME_STYLE \
 120             (wxSYSTEM_MENU | \
 121              wxRESIZE_BORDER | \
 122              wxMINIMIZE_BOX | \
 123              wxMAXIMIZE_BOX | \
 124              wxCLOSE_BOX | \
 125              wxCAPTION | \
 126              wxCLIP_CHILDREN)
 127 #endif
 128
 129
 130 // Dialogs are created in a special way
 131 #define wxTOPLEVEL_EX_DIALOG        0x00000008
 132
 133 // Styles for ShowFullScreen
 134 // (note that wxTopLevelWindow only handles wxFULLSCREEN_NOBORDER and
 135 //  wxFULLSCREEN_NOCAPTION; the rest is handled by wxTopLevelWindow)
 136 enum
 137 {
 138     wxFULLSCREEN_NOMENUBAR   = 0x0001,
 139     wxFULLSCREEN_NOTOOLBAR   = 0x0002,
 140     wxFULLSCREEN_NOSTATUSBAR = 0x0004,
 141     wxFULLSCREEN_NOBORDER    = 0x0008,
 142     wxFULLSCREEN_NOCAPTION   = 0x0010,
 143
 144     wxFULLSCREEN_ALL         = wxFULLSCREEN_NOMENUBAR | wxFULLSCREEN_NOTOOLBAR |
 145                                wxFULLSCREEN_NOSTATUSBAR | wxFULLSCREEN_NOBORDER |
 146                                wxFULLSCREEN_NOCAPTION
 147 };
 148
 149 // Styles for RequestUserAttention
 150 enum
 151 {
 152     wxUSER_ATTENTION_INFO = 1,
 153     wxUSER_ATTENTION_ERROR = 2
 154 };
 155
 156 // ----------------------------------------------------------------------------
 157 // wxTopLevelWindow: a top level (as opposed to child) window
 158 // ----------------------------------------------------------------------------
 159
 160 class WXDLLIMPEXP_CORE wxTopLevelWindowBase : public wxNonOwnedWindow
 161 {
 162 public:
 163     // construction
 164     wxTopLevelWindowBase();
 165     virtual ~wxTopLevelWindowBase();
 166
 167     // top level wnd state
 168     // --------------------
 169
 170     // maximize = true => maximize, otherwise - restore
 171     virtual void Maximize(bool maximize = true) = 0;
 172
 173     // undo Maximize() or Iconize()
 174     virtual void Restore() = 0;
 175
 176     // iconize = true => iconize, otherwise - restore
 177     virtual void Iconize(bool iconize = true) = 0;
 178
 179     // return true if the frame is maximized
 180     virtual bool IsMaximized() const = 0;
 181
 182     // return true if the frame is always maximized
 183     // due to native guidelines or current policy
 184     virtual bool IsAlwaysMaximized() const;
 185
 186     // return true if the frame is iconized
 187     virtual bool IsIconized() const = 0;
 188
 189     // get the frame icon
 190     wxIcon GetIcon() const;
 191
 192     // get the frame icons
 193     const wxIconBundle& GetIcons() const { return m_icons; }
 194
 195     // set the frame icon: implemented in terms of SetIcons()
 196     void SetIcon(const wxIcon& icon);
 197
 198     // set the frame icons
 199     virtual void SetIcons(const wxIconBundle& icons) { m_icons = icons; }
 200
 201     // maximize the window to cover entire screen
 202     virtual bool ShowFullScreen(bool show, long style = wxFULLSCREEN_ALL) = 0;
 203
 204     // shows the window, but doesn't activate it. If the base code is being run,
 205     // it means the port doesn't implement this method yet and so alert the user.
 206     virtual void ShowWithoutActivating() {
 207         wxFAIL_MSG("ShowWithoutActivating not implemented on this platform.");
 208     }
 209
 210     // return true if the frame is in fullscreen mode
 211     virtual bool IsFullScreen() const = 0;
 212
 213     // the title of the top level window: the text which the
 214     // window shows usually at the top of the frame/dialog in dedicated bar
 215     virtual void SetTitle(const wxString& title) = 0;
 216     virtual wxString GetTitle() const = 0;
 217
 218     // enable/disable close button [x]
 219     virtual bool EnableCloseButton(bool WXUNUSED(enable) ) { return false; }
 220
 221     // Set the shape of the window to the given region.
 222     // Returns true if the platform supports this feature (and the
 223     // operation is successful.)
 224     virtual bool SetShape(const wxRegion& WXUNUSED(region)) { return false; }
 225
 226     // Attracts the users attention to this window if the application is
 227     // inactive (should be called when a background event occurs)
 228     virtual void RequestUserAttention(int flags = wxUSER_ATTENTION_INFO);
 229
 230     // Is this the active frame (highlighted in the taskbar)?
 231     virtual bool IsActive() { return wxGetTopLevelParent(FindFocus()) == this; }
 232
 233     // this function may be overridden to return false to allow closing the
 234     // application even when this top level window is still open
 235     //
 236     // notice that the window is still closed prior to the application exit and
 237     // so it can still veto it even if it returns false from here
 238     virtual bool ShouldPreventAppExit() const { return true; }
 239
 240
 241 #if defined(__SMARTPHONE__)
 242     virtual void SetLeftMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 243     virtual void SetRightMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 244 #endif // __SMARTPHONE__
 245
 246     // centre the window on screen: this is just a shortcut
 247     void CentreOnScreen(int dir = wxBOTH) { DoCentre(dir | wxCENTRE_ON_SCREEN); }
 248     void CenterOnScreen(int dir = wxBOTH) { CentreOnScreen(dir); }
 249
 250
 251     // default item access: we have a permanent default item which is the one
 252     // set by the user code but we may also have a temporary default item which
 253     // would be chosen if the user pressed "Enter" now but the default action
 254     // reverts to the "permanent" default as soon as this temporary default
 255     // item loses focus
 256
 257     // get the default item, temporary or permanent
 258     wxWindow *GetDefaultItem() const
 259         { return m_winTmpDefault ? m_winTmpDefault : m_winDefault; }
 260
 261     // set the permanent default item, return the old default
 262     wxWindow *SetDefaultItem(wxWindow *win)
 263         { wxWindow *old = GetDefaultItem(); m_winDefault = win; return old; }
 264
 265     // return the temporary default item, can be NULL
 266     wxWindow *GetTmpDefaultItem() const { return m_winTmpDefault; }
 267
 268     // set a temporary default item, SetTmpDefaultItem(NULL) should be called
 269     // soon after a call to SetTmpDefaultItem(window), return the old default
 270     wxWindow *SetTmpDefaultItem(wxWindow *win)
 271         { wxWindow *old = GetDefaultItem(); m_winTmpDefault = win; return old; }
 272
 273
 274     // implementation only from now on
 275     // -------------------------------
 276
 277     // override some base class virtuals
 278     virtual bool Destroy();
 279     virtual bool IsTopLevel() const { return true; }
 280     virtual bool IsVisible() const { return IsShown(); }
 281
 282     // event handlers
 283     void OnCloseWindow(wxCloseEvent& event);
 284     void OnSize(wxSizeEvent& WXUNUSED(event)) { DoLayout(); }
 285
 286     // Get rect to be used to center top-level children
 287     virtual void GetRectForTopLevelChildren(int *x, int *y, int *w, int *h);
 288
 289     // this should go away, but for now it's called from docview.cpp,
 290     // so should be there for all platforms
 291     void OnActivate(wxActivateEvent &WXUNUSED(event)) { }
 292
 293     // do the window-specific processing after processing the update event
 294     virtual void DoUpdateWindowUI(wxUpdateUIEvent& event) ;
 295
 296     // a different API for SetSizeHints
 297     virtual void SetMinSize(const wxSize& minSize);
 298     virtual void SetMaxSize(const wxSize& maxSize);
 299
 300     virtual void OSXSetModified(bool modified) { m_modified = modified; }
 301     virtual bool OSXIsModified() const { return m_modified; }
 302
 303 protected:
 304     // the frame client to screen translation should take account of the
 305     // toolbar which may shift the origin of the client area
 306     virtual void DoClientToScreen(int *x, int *y) const;
 307     virtual void DoScreenToClient(int *x, int *y) const;
 308
 309     // add support for wxCENTRE_ON_SCREEN
 310     virtual void DoCentre(int dir);
 311
 312     // no need to do client to screen translation to get our position in screen
 313     // coordinates: this is already the case
 314     virtual void DoGetScreenPosition(int *x, int *y) const
 315     {
 316         DoGetPosition(x, y);
 317     }
 318
 319     // test whether this window makes part of the frame
 320     // (menubar, toolbar and statusbar are excluded from automatic layout)
 321     virtual bool IsOneOfBars(const wxWindow *WXUNUSED(win)) const
 322         { return false; }
 323
 324     // check if we should exit the program after deleting this window
 325     bool IsLastBeforeExit() const;
 326
 327     // send the iconize event, return true if processed
 328     bool SendIconizeEvent(bool iconized = true);
 329
 330     // do TLW-specific layout: we resize our unique child to fill the entire
 331     // client area
 332     void DoLayout();
 333
 334     // Get the default size for the new window if no explicit size given. If
 335     // there are better default sizes then these can be changed, just as long
 336     // as they are not too small for TLWs (and not larger than screen).
 337     static wxSize GetDefaultSize();
 338     static int WidthDefault(int w) { return w == wxDefaultCoord ? GetDefaultSize().x : w; }
 339     static int HeightDefault(int h) { return h == wxDefaultCoord ? GetDefaultSize().y : h; }
 340
 341
 342     // the frame icon
 343     wxIconBundle m_icons;
 344
 345     // a default window (usually a button) or NULL
 346     wxWindowRef m_winDefault;
 347
 348     // a temporary override of m_winDefault, use the latter if NULL
 349     wxWindowRef m_winTmpDefault;
 350
 351     bool m_modified;
 352
 353     wxDECLARE_NO_COPY_CLASS(wxTopLevelWindowBase);
 354     DECLARE_EVENT_TABLE()
 355     WX_DECLARE_CONTROL_CONTAINER();
 356 };
 357
 358
 359 // include the real class declaration
 360 #if defined(__WXPALMOS__)
 361     #include "wx/palmos/toplevel.h"
 362     #define wxTopLevelWindowNative wxTopLevelWindowPalm
 363 #elif defined(__WXMSW__)
 364     #include "wx/msw/toplevel.h"
 365     #define wxTopLevelWindowNative wxTopLevelWindowMSW
 366 #elif defined(__WXGTK20__)
 367     #include "wx/gtk/toplevel.h"
 368     #define wxTopLevelWindowNative wxTopLevelWindowGTK
 369 #elif defined(__WXGTK__)
 370     #include "wx/gtk1/toplevel.h"
 371     #define wxTopLevelWindowNative wxTopLevelWindowGTK
 372 #elif defined(__WXX11__)
 373     #include "wx/x11/toplevel.h"
 374     #define wxTopLevelWindowNative wxTopLevelWindowX11
 375 #elif defined(__WXMGL__)
 376     #include "wx/mgl/toplevel.h"
 377     #define wxTopLevelWindowNative wxTopLevelWindowMGL
 378 #elif defined(__WXDFB__)
 379     #include "wx/dfb/toplevel.h"
 380     #define wxTopLevelWindowNative wxTopLevelWindowDFB
 381 #elif defined(__WXMAC__)
 382     #include "wx/osx/toplevel.h"
 383     #define wxTopLevelWindowNative wxTopLevelWindowMac
 384 #elif defined(__WXCOCOA__)
 385     #include "wx/cocoa/toplevel.h"
 386     #define wxTopLevelWindowNative wxTopLevelWindowCocoa
 387 #elif defined(__WXPM__)
 388     #include "wx/os2/toplevel.h"
 389     #define wxTopLevelWindowNative wxTopLevelWindowOS2
 390 #elif defined(__WXMOTIF__)
 391     #include "wx/motif/toplevel.h"
 392     #define wxTopLevelWindowNative wxTopLevelWindowMotif
 393 #endif
 394
 395 #ifdef __WXUNIVERSAL__
 396     #include "wx/univ/toplevel.h"
 397 #else // !__WXUNIVERSAL__
 398     class WXDLLIMPEXP_CORE wxTopLevelWindow : public wxTopLevelWindowNative
 399     {
 400     public:
 401         // construction
 402         wxTopLevelWindow() { }
 403         wxTopLevelWindow(wxWindow *parent,
 404                    wxWindowID winid,
 405                    const wxString& title,
 406                    const wxPoint& pos = wxDefaultPosition,
 407                    const wxSize& size = wxDefaultSize,
 408                    long style = wxDEFAULT_FRAME_STYLE,
 409                    const wxString& name = wxFrameNameStr)
 410             : wxTopLevelWindowNative(parent, winid, title,
 411                                      pos, size, style, name)
 412         {
 413         }
 414
 415         DECLARE_DYNAMIC_CLASS_NO_COPY(wxTopLevelWindow)
 416     };
 417 #endif // __WXUNIVERSAL__/!__WXUNIVERSAL__
 418
 419 #endif // _WX_TOPLEVEL_BASE_H_