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 // style common to both wxFrame and wxDialog
  36 #define wxSTAY_ON_TOP           0x8000
  37 #define wxICONIZE               0x4000
  38 #define wxMINIMIZE              wxICONIZE
  39 #define wxMAXIMIZE              0x2000
  40 #define wxCLOSE_BOX             0x1000
  41
  42 #define wxSYSTEM_MENU           0x0800
  43 #define wxMINIMIZE_BOX          0x0400
  44 #define wxMAXIMIZE_BOX          0x0200
  45 #define wxTINY_CAPTION_HORIZ    0x0100
  46 #define wxTINY_CAPTION_VERT     0x0080
  47 #define wxRESIZE_BORDER         0x0040
  48
  49 #if WXWIN_COMPATIBILITY_2_6
  50
  51     // deprecated versions defined for compatibility reasons
  52     #define wxRESIZE_BOX            wxMAXIMIZE_BOX
  53     #define wxTHICK_FRAME           wxRESIZE_BORDER
  54
  55     // obsolete styles, unused any more
  56     #define wxDIALOG_MODAL          0
  57     #define wxDIALOG_MODELESS       0
  58     #define wxNO_3D                 0
  59     #define wxUSER_COLOURS          0
  60
  61 #endif // WXWIN_COMPATIBILITY_2_6
  62
  63 // default style
  64 //
  65 // under Windows CE (at least when compiling with eVC 4) we should create
  66 // top level windows without any styles at all for them to appear
  67 // "correctly", i.e. as full screen windows with a "hide" button (same as
  68 // "close" but round instead of squared and just hides the applications
  69 // instead of closing it) in the title bar
  70 #if defined(__WXWINCE__)
  71     #if defined(__SMARTPHONE__)
  72         #define wxDEFAULT_FRAME_STYLE (wxMAXIMIZE)
  73     #elif defined(__WINCE_STANDARDSDK__)
  74         #define wxDEFAULT_FRAME_STYLE (wxMAXIMIZE|wxCLOSE_BOX)
  75     #else
  76         #define wxDEFAULT_FRAME_STYLE (wxNO_BORDER)
  77     #endif
  78 #else // !__WXWINCE__
  79     #define wxDEFAULT_FRAME_STYLE \
  80             (wxSYSTEM_MENU | \
  81              wxRESIZE_BORDER | \
  82              wxMINIMIZE_BOX | \
  83              wxMAXIMIZE_BOX | \
  84              wxCLOSE_BOX | \
  85              wxCAPTION | \
  86              wxCLIP_CHILDREN)
  87 #endif
  88
  89
  90 // Dialogs are created in a special way
  91 #define wxTOPLEVEL_EX_DIALOG        0x00000008
  92
  93 // Styles for ShowFullScreen
  94 // (note that wxTopLevelWindow only handles wxFULLSCREEN_NOBORDER and
  95 //  wxFULLSCREEN_NOCAPTION; the rest is handled by wxTopLevelWindow)
  96 enum
  97 {
  98     wxFULLSCREEN_NOMENUBAR   = 0x0001,
  99     wxFULLSCREEN_NOTOOLBAR   = 0x0002,
 100     wxFULLSCREEN_NOSTATUSBAR = 0x0004,
 101     wxFULLSCREEN_NOBORDER    = 0x0008,
 102     wxFULLSCREEN_NOCAPTION   = 0x0010,
 103
 104     wxFULLSCREEN_ALL         = wxFULLSCREEN_NOMENUBAR | wxFULLSCREEN_NOTOOLBAR |
 105                                wxFULLSCREEN_NOSTATUSBAR | wxFULLSCREEN_NOBORDER |
 106                                wxFULLSCREEN_NOCAPTION
 107 };
 108
 109 // Styles for RequestUserAttention
 110 enum
 111 {
 112     wxUSER_ATTENTION_INFO = 1,
 113     wxUSER_ATTENTION_ERROR = 2
 114 };
 115
 116 // ----------------------------------------------------------------------------
 117 // wxTopLevelWindow: a top level (as opposed to child) window
 118 // ----------------------------------------------------------------------------
 119
 120 class WXDLLIMPEXP_CORE wxTopLevelWindowBase : public wxNonOwnedWindow
 121 {
 122 public:
 123     // construction
 124     wxTopLevelWindowBase();
 125     virtual ~wxTopLevelWindowBase();
 126
 127     // top level wnd state
 128     // --------------------
 129
 130     // maximize = true => maximize, otherwise - restore
 131     virtual void Maximize(bool maximize = true) = 0;
 132
 133     // undo Maximize() or Iconize()
 134     virtual void Restore() = 0;
 135
 136     // iconize = true => iconize, otherwise - restore
 137     virtual void Iconize(bool iconize = true) = 0;
 138
 139     // return true if the frame is maximized
 140     virtual bool IsMaximized() const = 0;
 141
 142     // return true if the frame is always maximized
 143     // due to native guidelines or current policy
 144     virtual bool IsAlwaysMaximized() const;
 145
 146     // return true if the frame is iconized
 147     virtual bool IsIconized() const = 0;
 148
 149     // get the frame icon
 150     wxIcon GetIcon() const;
 151
 152     // get the frame icons
 153     const wxIconBundle& GetIcons() const { return m_icons; }
 154
 155     // set the frame icon: implemented in terms of SetIcons()
 156     void SetIcon(const wxIcon& icon);
 157
 158     // set the frame icons
 159     virtual void SetIcons(const wxIconBundle& icons) { m_icons = icons; }
 160
 161     // maximize the window to cover entire screen
 162     virtual bool ShowFullScreen(bool show, long style = wxFULLSCREEN_ALL) = 0;
 163
 164     // shows the window, but doesn't activate it. If the base code is being run,
 165     // it means the port doesn't implement this method yet and so alert the user.
 166     virtual void ShowWithoutActivating() {
 167         wxFAIL_MSG("ShowWithoutActivating not implemented on this platform.");
 168     }
 169
 170     // return true if the frame is in fullscreen mode
 171     virtual bool IsFullScreen() const = 0;
 172
 173     // the title of the top level window: the text which the
 174     // window shows usually at the top of the frame/dialog in dedicated bar
 175     virtual void SetTitle(const wxString& title) = 0;
 176     virtual wxString GetTitle() const = 0;
 177
 178     // enable/disable close button [x]
 179     virtual bool EnableCloseButton(bool WXUNUSED(enable) ) { return false; }
 180
 181     // Set the shape of the window to the given region.
 182     // Returns true if the platform supports this feature (and the
 183     // operation is successful.)
 184     virtual bool SetShape(const wxRegion& WXUNUSED(region)) { return false; }
 185
 186     // Attracts the users attention to this window if the application is
 187     // inactive (should be called when a background event occurs)
 188     virtual void RequestUserAttention(int flags = wxUSER_ATTENTION_INFO);
 189
 190     // Is this the active frame (highlighted in the taskbar)?
 191     virtual bool IsActive() { return wxGetTopLevelParent(FindFocus()) == this; }
 192
 193     // this function may be overridden to return false to allow closing the
 194     // application even when this top level window is still open
 195     //
 196     // notice that the window is still closed prior to the application exit and
 197     // so it can still veto it even if it returns false from here
 198     virtual bool ShouldPreventAppExit() const { return true; }
 199
 200
 201 #if defined(__SMARTPHONE__)
 202     virtual void SetLeftMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 203     virtual void SetRightMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 204 #endif // __SMARTPHONE__
 205
 206     // centre the window on screen: this is just a shortcut
 207     void CentreOnScreen(int dir = wxBOTH) { DoCentre(dir | wxCENTRE_ON_SCREEN); }
 208     void CenterOnScreen(int dir = wxBOTH) { CentreOnScreen(dir); }
 209
 210
 211     // default item access: we have a permanent default item which is the one
 212     // set by the user code but we may also have a temporary default item which
 213     // would be chosen if the user pressed "Enter" now but the default action
 214     // reverts to the "permanent" default as soon as this temporary default
 215     // item loses focus
 216
 217     // get the default item, temporary or permanent
 218     wxWindow *GetDefaultItem() const
 219         { return m_winTmpDefault ? m_winTmpDefault : m_winDefault; }
 220
 221     // set the permanent default item, return the old default
 222     wxWindow *SetDefaultItem(wxWindow *win)
 223         { wxWindow *old = GetDefaultItem(); m_winDefault = win; return old; }
 224
 225     // return the temporary default item, can be NULL
 226     wxWindow *GetTmpDefaultItem() const { return m_winTmpDefault; }
 227
 228     // set a temporary default item, SetTmpDefaultItem(NULL) should be called
 229     // soon after a call to SetTmpDefaultItem(window), return the old default
 230     wxWindow *SetTmpDefaultItem(wxWindow *win)
 231         { wxWindow *old = GetDefaultItem(); m_winTmpDefault = win; return old; }
 232
 233
 234     // implementation only from now on
 235     // -------------------------------
 236
 237     // override some base class virtuals
 238     virtual bool Destroy();
 239     virtual bool IsTopLevel() const { return true; }
 240     virtual bool IsVisible() const { return IsShown(); }
 241
 242     // event handlers
 243     void OnCloseWindow(wxCloseEvent& event);
 244     void OnSize(wxSizeEvent& WXUNUSED(event)) { DoLayout(); }
 245
 246     // Get rect to be used to center top-level children
 247     virtual void GetRectForTopLevelChildren(int *x, int *y, int *w, int *h);
 248
 249     // this should go away, but for now it's called from docview.cpp,
 250     // so should be there for all platforms
 251     void OnActivate(wxActivateEvent &WXUNUSED(event)) { }
 252
 253     // do the window-specific processing after processing the update event
 254     virtual void DoUpdateWindowUI(wxUpdateUIEvent& event) ;
 255
 256     // a different API for SetSizeHints
 257     virtual void SetMinSize(const wxSize& minSize);
 258     virtual void SetMaxSize(const wxSize& maxSize);
 259
 260     virtual void OSXSetModified(bool modified) { m_modified = modified; }
 261     virtual bool OSXIsModified() const { return m_modified; }
 262
 263 protected:
 264     // the frame client to screen translation should take account of the
 265     // toolbar which may shift the origin of the client area
 266     virtual void DoClientToScreen(int *x, int *y) const;
 267     virtual void DoScreenToClient(int *x, int *y) const;
 268
 269     // add support for wxCENTRE_ON_SCREEN
 270     virtual void DoCentre(int dir);
 271
 272     // no need to do client to screen translation to get our position in screen
 273     // coordinates: this is already the case
 274     virtual void DoGetScreenPosition(int *x, int *y) const
 275     {
 276         DoGetPosition(x, y);
 277     }
 278
 279     // test whether this window makes part of the frame
 280     // (menubar, toolbar and statusbar are excluded from automatic layout)
 281     virtual bool IsOneOfBars(const wxWindow *WXUNUSED(win)) const
 282         { return false; }
 283
 284     // check if we should exit the program after deleting this window
 285     bool IsLastBeforeExit() const;
 286
 287     // send the iconize event, return true if processed
 288     bool SendIconizeEvent(bool iconized = true);
 289
 290     // do TLW-specific layout: we resize our unique child to fill the entire
 291     // client area
 292     void DoLayout();
 293
 294     // Get the default size for the new window if no explicit size given. If
 295     // there are better default sizes then these can be changed, just as long
 296     // as they are not too small for TLWs (and not larger than screen).
 297     static wxSize GetDefaultSize();
 298     static int WidthDefault(int w) { return w == wxDefaultCoord ? GetDefaultSize().x : w; }
 299     static int HeightDefault(int h) { return h == wxDefaultCoord ? GetDefaultSize().y : h; }
 300
 301
 302     // the frame icon
 303     wxIconBundle m_icons;
 304
 305     // a default window (usually a button) or NULL
 306     wxWindowRef m_winDefault;
 307
 308     // a temporary override of m_winDefault, use the latter if NULL
 309     wxWindowRef m_winTmpDefault;
 310
 311     bool m_modified;
 312
 313     wxDECLARE_NO_COPY_CLASS(wxTopLevelWindowBase);
 314     DECLARE_EVENT_TABLE()
 315     WX_DECLARE_CONTROL_CONTAINER();
 316 };
 317
 318
 319 // include the real class declaration
 320 #if defined(__WXPALMOS__)
 321     #include "wx/palmos/toplevel.h"
 322     #define wxTopLevelWindowNative wxTopLevelWindowPalm
 323 #elif defined(__WXMSW__)
 324     #include "wx/msw/toplevel.h"
 325     #define wxTopLevelWindowNative wxTopLevelWindowMSW
 326 #elif defined(__WXGTK20__)
 327     #include "wx/gtk/toplevel.h"
 328     #define wxTopLevelWindowNative wxTopLevelWindowGTK
 329 #elif defined(__WXGTK__)
 330     #include "wx/gtk1/toplevel.h"
 331     #define wxTopLevelWindowNative wxTopLevelWindowGTK
 332 #elif defined(__WXX11__)
 333     #include "wx/x11/toplevel.h"
 334     #define wxTopLevelWindowNative wxTopLevelWindowX11
 335 #elif defined(__WXMGL__)
 336     #include "wx/mgl/toplevel.h"
 337     #define wxTopLevelWindowNative wxTopLevelWindowMGL
 338 #elif defined(__WXDFB__)
 339     #include "wx/dfb/toplevel.h"
 340     #define wxTopLevelWindowNative wxTopLevelWindowDFB
 341 #elif defined(__WXMAC__)
 342     #include "wx/osx/toplevel.h"
 343     #define wxTopLevelWindowNative wxTopLevelWindowMac
 344 #elif defined(__WXCOCOA__)
 345     #include "wx/cocoa/toplevel.h"
 346     #define wxTopLevelWindowNative wxTopLevelWindowCocoa
 347 #elif defined(__WXPM__)
 348     #include "wx/os2/toplevel.h"
 349     #define wxTopLevelWindowNative wxTopLevelWindowOS2
 350 #elif defined(__WXMOTIF__)
 351     #include "wx/motif/toplevel.h"
 352     #define wxTopLevelWindowNative wxTopLevelWindowMotif
 353 #endif
 354
 355 #ifdef __WXUNIVERSAL__
 356     #include "wx/univ/toplevel.h"
 357 #else // !__WXUNIVERSAL__
 358     class WXDLLIMPEXP_CORE wxTopLevelWindow : public wxTopLevelWindowNative
 359     {
 360     public:
 361         // construction
 362         wxTopLevelWindow() { }
 363         wxTopLevelWindow(wxWindow *parent,
 364                    wxWindowID winid,
 365                    const wxString& title,
 366                    const wxPoint& pos = wxDefaultPosition,
 367                    const wxSize& size = wxDefaultSize,
 368                    long style = wxDEFAULT_FRAME_STYLE,
 369                    const wxString& name = wxFrameNameStr)
 370             : wxTopLevelWindowNative(parent, winid, title,
 371                                      pos, size, style, name)
 372         {
 373         }
 374
 375         DECLARE_DYNAMIC_CLASS_NO_COPY(wxTopLevelWindow)
 376     };
 377 #endif // __WXUNIVERSAL__/!__WXUNIVERSAL__
 378
 379 #endif // _WX_TOPLEVEL_BASE_H_