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.h 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 :
 161     public wxNavigationEnabled<wxNonOwnedWindow>
 162 {
 163 public:
 164     // construction
 165     wxTopLevelWindowBase();
 166     virtual ~wxTopLevelWindowBase();
 167
 168     // top level wnd state
 169     // --------------------
 170
 171     // maximize = true => maximize, otherwise - restore
 172     virtual void Maximize(bool maximize = true) = 0;
 173
 174     // undo Maximize() or Iconize()
 175     virtual void Restore() = 0;
 176
 177     // iconize = true => iconize, otherwise - restore
 178     virtual void Iconize(bool iconize = true) = 0;
 179
 180     // return true if the frame is maximized
 181     virtual bool IsMaximized() const = 0;
 182
 183     // return true if the frame is always maximized
 184     // due to native guidelines or current policy
 185     virtual bool IsAlwaysMaximized() const;
 186
 187     // return true if the frame is iconized
 188     virtual bool IsIconized() const = 0;
 189
 190     // get the frame icon
 191     wxIcon GetIcon() const;
 192
 193     // get the frame icons
 194     const wxIconBundle& GetIcons() const { return m_icons; }
 195
 196     // set the frame icon: implemented in terms of SetIcons()
 197     void SetIcon(const wxIcon& icon);
 198
 199     // set the frame icons
 200     virtual void SetIcons(const wxIconBundle& icons) { m_icons = icons; }
 201
 202     // maximize the window to cover entire screen
 203     virtual bool ShowFullScreen(bool show, long style = wxFULLSCREEN_ALL) = 0;
 204
 205     // shows the window, but doesn't activate it. If the base code is being run,
 206     // it means the port doesn't implement this method yet and so alert the user.
 207     virtual void ShowWithoutActivating() {
 208         wxFAIL_MSG("ShowWithoutActivating not implemented on this platform.");
 209     }
 210
 211     // return true if the frame is in fullscreen mode
 212     virtual bool IsFullScreen() const = 0;
 213
 214     // the title of the top level window: the text which the
 215     // window shows usually at the top of the frame/dialog in dedicated bar
 216     virtual void SetTitle(const wxString& title) = 0;
 217     virtual wxString GetTitle() const = 0;
 218
 219     // enable/disable close button [x]
 220     virtual bool EnableCloseButton(bool WXUNUSED(enable) ) { return false; }
 221
 222     // Set the shape of the window to the given region.
 223     // Returns true if the platform supports this feature (and the
 224     // operation is successful.)
 225     virtual bool SetShape(const wxRegion& WXUNUSED(region)) { return false; }
 226
 227     // Attracts the users attention to this window if the application is
 228     // inactive (should be called when a background event occurs)
 229     virtual void RequestUserAttention(int flags = wxUSER_ATTENTION_INFO);
 230
 231     // Is this the active frame (highlighted in the taskbar)?
 232     virtual bool IsActive() { return wxGetTopLevelParent(FindFocus()) == this; }
 233
 234     // this function may be overridden to return false to allow closing the
 235     // application even when this top level window is still open
 236     //
 237     // notice that the window is still closed prior to the application exit and
 238     // so it can still veto it even if it returns false from here
 239     virtual bool ShouldPreventAppExit() const { return true; }
 240
 241
 242 #if defined(__SMARTPHONE__)
 243     virtual void SetLeftMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 244     virtual void SetRightMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 245 #endif // __SMARTPHONE__
 246
 247     // centre the window on screen: this is just a shortcut
 248     void CentreOnScreen(int dir = wxBOTH) { DoCentre(dir | wxCENTRE_ON_SCREEN); }
 249     void CenterOnScreen(int dir = wxBOTH) { CentreOnScreen(dir); }
 250
 251     // Get the default size for a new top level window. This is used when
 252     // creating a wxTLW under some platforms if no explicit size given.
 253     static wxSize GetDefaultSize();
 254
 255
 256     // default item access: we have a permanent default item which is the one
 257     // set by the user code but we may also have a temporary default item which
 258     // would be chosen if the user pressed "Enter" now but the default action
 259     // reverts to the "permanent" default as soon as this temporary default
 260     // item loses focus
 261
 262     // get the default item, temporary or permanent
 263     wxWindow *GetDefaultItem() const
 264         { return m_winTmpDefault ? m_winTmpDefault : m_winDefault; }
 265
 266     // set the permanent default item, return the old default
 267     wxWindow *SetDefaultItem(wxWindow *win)
 268         { wxWindow *old = GetDefaultItem(); m_winDefault = win; return old; }
 269
 270     // return the temporary default item, can be NULL
 271     wxWindow *GetTmpDefaultItem() const { return m_winTmpDefault; }
 272
 273     // set a temporary default item, SetTmpDefaultItem(NULL) should be called
 274     // soon after a call to SetTmpDefaultItem(window), return the old default
 275     wxWindow *SetTmpDefaultItem(wxWindow *win)
 276         { wxWindow *old = GetDefaultItem(); m_winTmpDefault = win; return old; }
 277
 278
 279     // implementation only from now on
 280     // -------------------------------
 281
 282     // override some base class virtuals
 283     virtual bool Destroy();
 284     virtual bool IsTopLevel() const { return true; }
 285     virtual bool IsVisible() const { return IsShown(); }
 286
 287     // event handlers
 288     void OnCloseWindow(wxCloseEvent& event);
 289     void OnSize(wxSizeEvent& WXUNUSED(event)) { DoLayout(); }
 290
 291     // Get rect to be used to center top-level children
 292     virtual void GetRectForTopLevelChildren(int *x, int *y, int *w, int *h);
 293
 294     // this should go away, but for now it's called from docview.cpp,
 295     // so should be there for all platforms
 296     void OnActivate(wxActivateEvent &WXUNUSED(event)) { }
 297
 298     // do the window-specific processing after processing the update event
 299     virtual void DoUpdateWindowUI(wxUpdateUIEvent& event) ;
 300
 301     // a different API for SetSizeHints
 302     virtual void SetMinSize(const wxSize& minSize);
 303     virtual void SetMaxSize(const wxSize& maxSize);
 304
 305     virtual void OSXSetModified(bool modified) { m_modified = modified; }
 306     virtual bool OSXIsModified() const { return m_modified; }
 307
 308 protected:
 309     // the frame client to screen translation should take account of the
 310     // toolbar which may shift the origin of the client area
 311     virtual void DoClientToScreen(int *x, int *y) const;
 312     virtual void DoScreenToClient(int *x, int *y) const;
 313
 314     // add support for wxCENTRE_ON_SCREEN
 315     virtual void DoCentre(int dir);
 316
 317     // no need to do client to screen translation to get our position in screen
 318     // coordinates: this is already the case
 319     virtual void DoGetScreenPosition(int *x, int *y) const
 320     {
 321         DoGetPosition(x, y);
 322     }
 323
 324     // test whether this window makes part of the frame
 325     // (menubar, toolbar and statusbar are excluded from automatic layout)
 326     virtual bool IsOneOfBars(const wxWindow *WXUNUSED(win)) const
 327         { return false; }
 328
 329     // check if we should exit the program after deleting this window
 330     bool IsLastBeforeExit() const;
 331
 332     // send the iconize event, return true if processed
 333     bool SendIconizeEvent(bool iconized = true);
 334
 335     // do TLW-specific layout: we resize our unique child to fill the entire
 336     // client area
 337     void DoLayout();
 338
 339     static int WidthDefault(int w) { return w == wxDefaultCoord ? GetDefaultSize().x : w; }
 340     static int HeightDefault(int h) { return h == wxDefaultCoord ? GetDefaultSize().y : h; }
 341
 342
 343     // the frame icon
 344     wxIconBundle m_icons;
 345
 346     // a default window (usually a button) or NULL
 347     wxWindowRef m_winDefault;
 348
 349     // a temporary override of m_winDefault, use the latter if NULL
 350     wxWindowRef m_winTmpDefault;
 351
 352     bool m_modified;
 353
 354     wxDECLARE_NO_COPY_CLASS(wxTopLevelWindowBase);
 355     DECLARE_EVENT_TABLE()
 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_