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
  24 // the default names for various classes
  25 extern WXDLLEXPORT_DATA(const wxChar) wxFrameNameStr[];
  26
  27 class WXDLLEXPORT wxTopLevelWindowBase;
  28
  29 // ----------------------------------------------------------------------------
  30 // constants
  31 // ----------------------------------------------------------------------------
  32
  33 // style common to both wxFrame and wxDialog
  34 #define wxSTAY_ON_TOP           0x8000
  35 #define wxICONIZE               0x4000
  36 #define wxMINIMIZE              wxICONIZE
  37 #define wxMAXIMIZE              0x2000
  38 #define wxCLOSE_BOX             0x1000
  39
  40 #define wxSYSTEM_MENU           0x0800
  41 #define wxMINIMIZE_BOX          0x0400
  42 #define wxMAXIMIZE_BOX          0x0200
  43 #define wxTINY_CAPTION_HORIZ    0x0100
  44 #define wxTINY_CAPTION_VERT     0x0080
  45 #define wxRESIZE_BORDER         0x0040
  46
  47 #if WXWIN_COMPATIBILITY_2_6
  48
  49     // deprecated versions defined for compatibility reasons
  50     #define wxRESIZE_BOX            wxMAXIMIZE_BOX
  51     #define wxTHICK_FRAME           wxRESIZE_BORDER
  52
  53     // obsolete styles, unused any more
  54     #define wxDIALOG_MODAL          0
  55     #define wxDIALOG_MODELESS       0
  56     #define wxNO_3D                 0
  57     #define wxUSER_COLOURS          0
  58
  59 #endif // WXWIN_COMPATIBILITY_2_6
  60
  61 // default style
  62 //
  63 // under Windows CE (at least when compiling with eVC 4) we should create
  64 // top level windows without any styles at all for them to appear
  65 // "correctly", i.e. as full screen windows with a "hide" button (same as
  66 // "close" but round instead of squared and just hides the applications
  67 // instead of closing it) in the title bar
  68 #if defined(__WXWINCE__)
  69     #if defined(__SMARTPHONE__)
  70         #define wxDEFAULT_FRAME_STYLE (wxMAXIMIZE)
  71     #elif defined(__WINCE_STANDARDSDK__)
  72         #define wxDEFAULT_FRAME_STYLE (wxMAXIMIZE|wxCLOSE_BOX)
  73     #else
  74         #define wxDEFAULT_FRAME_STYLE (wxNO_BORDER)
  75     #endif
  76 #else // !__WXWINCE__
  77     #define wxDEFAULT_FRAME_STYLE \
  78             (wxSYSTEM_MENU | \
  79              wxRESIZE_BORDER | \
  80              wxMINIMIZE_BOX | \
  81              wxMAXIMIZE_BOX | \
  82              wxCLOSE_BOX | \
  83              wxCAPTION | \
  84              wxCLIP_CHILDREN)
  85 #endif
  86
  87
  88 // Dialogs are created in a special way
  89 #define wxTOPLEVEL_EX_DIALOG        0x00000008
  90
  91 // Styles for ShowFullScreen
  92 // (note that wxTopLevelWindow only handles wxFULLSCREEN_NOBORDER and
  93 //  wxFULLSCREEN_NOCAPTION; the rest is handled by wxTopLevelWindow)
  94 enum
  95 {
  96     wxFULLSCREEN_NOMENUBAR   = 0x0001,
  97     wxFULLSCREEN_NOTOOLBAR   = 0x0002,
  98     wxFULLSCREEN_NOSTATUSBAR = 0x0004,
  99     wxFULLSCREEN_NOBORDER    = 0x0008,
 100     wxFULLSCREEN_NOCAPTION   = 0x0010,
 101
 102     wxFULLSCREEN_ALL         = wxFULLSCREEN_NOMENUBAR | wxFULLSCREEN_NOTOOLBAR |
 103                                wxFULLSCREEN_NOSTATUSBAR | wxFULLSCREEN_NOBORDER |
 104                                wxFULLSCREEN_NOCAPTION
 105 };
 106
 107 // Styles for RequestUserAttention
 108 enum
 109 {
 110     wxUSER_ATTENTION_INFO = 1,
 111     wxUSER_ATTENTION_ERROR = 2
 112 };
 113
 114 // ----------------------------------------------------------------------------
 115 // wxTopLevelWindow: a top level (as opposed to child) window
 116 // ----------------------------------------------------------------------------
 117
 118 class WXDLLEXPORT wxTopLevelWindowBase : public wxNonOwnedWindow
 119 {
 120 public:
 121     // construction
 122     wxTopLevelWindowBase();
 123     virtual ~wxTopLevelWindowBase();
 124
 125     // top level wnd state
 126     // --------------------
 127
 128     // maximize = true => maximize, otherwise - restore
 129     virtual void Maximize(bool maximize = true) = 0;
 130
 131     // undo Maximize() or Iconize()
 132     virtual void Restore() = 0;
 133
 134     // iconize = true => iconize, otherwise - restore
 135     virtual void Iconize(bool iconize = true) = 0;
 136
 137     // return true if the frame is maximized
 138     virtual bool IsMaximized() const = 0;
 139
 140     // return true if the frame is always maximized
 141     // due to native guidelines or current policy
 142     virtual bool IsAlwaysMaximized() const;
 143
 144     // return true if the frame is iconized
 145     virtual bool IsIconized() const = 0;
 146
 147     // get the frame icon
 148     wxIcon GetIcon() const;
 149
 150     // get the frame icons
 151     const wxIconBundle& GetIcons() const { return m_icons; }
 152
 153     // set the frame icon: implemented in terms of SetIcons()
 154     void SetIcon(const wxIcon& icon);
 155
 156     // set the frame icons
 157     virtual void SetIcons(const wxIconBundle& icons) { m_icons = icons; }
 158
 159     // maximize the window to cover entire screen
 160     virtual bool ShowFullScreen(bool show, long style = wxFULLSCREEN_ALL) = 0;
 161
 162     // return true if the frame is in fullscreen mode
 163     virtual bool IsFullScreen() const = 0;
 164
 165     // the title of the top level window: the text which the
 166     // window shows usually at the top of the frame/dialog in dedicated bar
 167     virtual void SetTitle(const wxString& title) = 0;
 168     virtual wxString GetTitle() const = 0;
 169
 170     // enable/disable close button [x]
 171     virtual bool EnableCloseButton(bool WXUNUSED(enable) ) { return false; }
 172
 173     // Set the shape of the window to the given region.
 174     // Returns true if the platform supports this feature (and the
 175     // operation is successful.)
 176     virtual bool SetShape(const wxRegion& WXUNUSED(region)) { return false; }
 177
 178     // Attracts the users attention to this window if the application is
 179     // inactive (should be called when a background event occurs)
 180     virtual void RequestUserAttention(int flags = wxUSER_ATTENTION_INFO);
 181
 182     // Is this the active frame (highlighted in the taskbar)?
 183     virtual bool IsActive() { return wxGetTopLevelParent(FindFocus()) == this; }
 184
 185     // this function may be overridden to return false to allow closing the
 186     // application even when this top level window is still open
 187     //
 188     // notice that the window is still closed prior to the application exit and
 189     // so it can still veto it even if it returns false from here
 190     virtual bool ShouldPreventAppExit() const { return true; }
 191
 192
 193 #if defined(__SMARTPHONE__)
 194     virtual void SetLeftMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 195     virtual void SetRightMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 196 #endif // __SMARTPHONE__
 197
 198     // centre the window on screen: this is just a shortcut
 199     void CentreOnScreen(int dir = wxBOTH) { DoCentre(dir | wxCENTRE_ON_SCREEN); }
 200     void CenterOnScreen(int dir = wxBOTH) { CentreOnScreen(dir); }
 201
 202
 203     // default item access: we have a permanent default item which is the one
 204     // set by the user code but we may also have a temporary default item which
 205     // would be chosen if the user pressed "Enter" now but the default action
 206     // reverts to the "permanent" default as soon as this temporary default
 207     // item loses focus
 208
 209     // used to reset default if pointing to removed child
 210     virtual void RemoveChild(wxWindowBase *child);
 211
 212     // get the default item, temporary or permanent
 213     wxWindow *GetDefaultItem() const
 214         { return m_winTmpDefault ? m_winTmpDefault : m_winDefault; }
 215
 216     // set the permanent default item, return the old default
 217     wxWindow *SetDefaultItem(wxWindow *win)
 218         { wxWindow *old = GetDefaultItem(); m_winDefault = win; return old; }
 219
 220     // return the temporary default item, can be NULL
 221     wxWindow *GetTmpDefaultItem() const { return m_winTmpDefault; }
 222
 223     // set a temporary default item, SetTmpDefaultItem(NULL) should be called
 224     // soon after a call to SetTmpDefaultItem(window), return the old default
 225     wxWindow *SetTmpDefaultItem(wxWindow *win)
 226         { wxWindow *old = GetDefaultItem(); m_winTmpDefault = win; return old; }
 227
 228
 229     // implementation only from now on
 230     // -------------------------------
 231
 232     // override some base class virtuals
 233     virtual bool Destroy();
 234     virtual bool IsTopLevel() const { return true; }
 235     virtual bool IsVisible() const { return IsShown(); }
 236
 237     // event handlers
 238     void OnCloseWindow(wxCloseEvent& event);
 239     void OnSize(wxSizeEvent& WXUNUSED(event)) { DoLayout(); }
 240
 241     // Get rect to be used to center top-level children
 242     virtual void GetRectForTopLevelChildren(int *x, int *y, int *w, int *h);
 243
 244     // this should go away, but for now it's called from docview.cpp,
 245     // so should be there for all platforms
 246     void OnActivate(wxActivateEvent &WXUNUSED(event)) { }
 247
 248     // do the window-specific processing after processing the update event
 249     virtual void DoUpdateWindowUI(wxUpdateUIEvent& event) ;
 250
 251     // a different API for SetSizeHints
 252     virtual void SetMinSize(const wxSize& minSize);
 253     virtual void SetMaxSize(const wxSize& maxSize);
 254
 255 protected:
 256     // the frame client to screen translation should take account of the
 257     // toolbar which may shift the origin of the client area
 258     virtual void DoClientToScreen(int *x, int *y) const;
 259     virtual void DoScreenToClient(int *x, int *y) const;
 260
 261     // add support for wxCENTRE_ON_SCREEN
 262     virtual void DoCentre(int dir);
 263
 264     // no need to do client to screen translation to get our position in screen
 265     // coordinates: this is already the case
 266     virtual void DoGetScreenPosition(int *x, int *y) const
 267     {
 268         DoGetPosition(x, y);
 269     }
 270
 271     // test whether this window makes part of the frame
 272     // (menubar, toolbar and statusbar are excluded from automatic layout)
 273     virtual bool IsOneOfBars(const wxWindow *WXUNUSED(win)) const
 274         { return false; }
 275
 276     // check if we should exit the program after deleting this window
 277     bool IsLastBeforeExit() const;
 278
 279     // send the iconize event, return true if processed
 280     bool SendIconizeEvent(bool iconized = true);
 281
 282     // do TLW-specific layout: we resize our unique child to fill the entire
 283     // client area
 284     void DoLayout();
 285
 286     // Get the default size for the new window if no explicit size given. If
 287     // there are better default sizes then these can be changed, just as long
 288     // as they are not too small for TLWs (and not larger than screen).
 289     static wxSize GetDefaultSize();
 290     static int WidthDefault(int w) { return w == wxDefaultCoord ? GetDefaultSize().x : w; }
 291     static int HeightDefault(int h) { return h == wxDefaultCoord ? GetDefaultSize().y : h; }
 292
 293     // reset m_winDefault and m_winTmpDefault if they point to the window being
 294     // destroyed
 295     void OnChildDestroy(wxWindowDestroyEvent& event);
 296
 297
 298     // the frame icon
 299     wxIconBundle m_icons;
 300
 301     // a default window (usually a button) or NULL
 302     wxWindow *m_winDefault;
 303
 304     // a temporary override of m_winDefault, use the latter if NULL
 305     wxWindow *m_winTmpDefault;
 306
 307     DECLARE_NO_COPY_CLASS(wxTopLevelWindowBase)
 308     DECLARE_EVENT_TABLE()
 309 };
 310
 311
 312 // include the real class declaration
 313 #if defined(__WXPALMOS__)
 314     #include "wx/palmos/toplevel.h"
 315     #define wxTopLevelWindowNative wxTopLevelWindowPalm
 316 #elif defined(__WXMSW__)
 317     #include "wx/msw/toplevel.h"
 318     #define wxTopLevelWindowNative wxTopLevelWindowMSW
 319 #elif defined(__WXGTK20__)
 320     #include "wx/gtk/toplevel.h"
 321     #define wxTopLevelWindowNative wxTopLevelWindowGTK
 322 #elif defined(__WXGTK__)
 323     #include "wx/gtk1/toplevel.h"
 324     #define wxTopLevelWindowNative wxTopLevelWindowGTK
 325 #elif defined(__WXX11__)
 326     #include "wx/x11/toplevel.h"
 327     #define wxTopLevelWindowNative wxTopLevelWindowX11
 328 #elif defined(__WXMGL__)
 329     #include "wx/mgl/toplevel.h"
 330     #define wxTopLevelWindowNative wxTopLevelWindowMGL
 331 #elif defined(__WXDFB__)
 332     #include "wx/dfb/toplevel.h"
 333     #define wxTopLevelWindowNative wxTopLevelWindowDFB
 334 #elif defined(__WXMAC__)
 335     #include "wx/mac/toplevel.h"
 336     #define wxTopLevelWindowNative wxTopLevelWindowMac
 337 #elif defined(__WXCOCOA__)
 338     #include "wx/cocoa/toplevel.h"
 339     #define wxTopLevelWindowNative wxTopLevelWindowCocoa
 340 #elif defined(__WXPM__)
 341     #include "wx/os2/toplevel.h"
 342     #define wxTopLevelWindowNative wxTopLevelWindowOS2
 343 #elif defined(__WXMOTIF__)
 344     #include "wx/motif/toplevel.h"
 345     #define wxTopLevelWindowNative wxTopLevelWindowMotif
 346 #endif
 347
 348 #ifdef __WXUNIVERSAL__
 349     #include "wx/univ/toplevel.h"
 350 #else // !__WXUNIVERSAL__
 351     #ifdef wxTopLevelWindowNative
 352         class WXDLLEXPORT wxTopLevelWindow : public wxTopLevelWindowNative
 353         {
 354         public:
 355             // construction
 356             wxTopLevelWindow() { Init(); }
 357             wxTopLevelWindow(wxWindow *parent,
 358                        wxWindowID winid,
 359                        const wxString& title,
 360                        const wxPoint& pos = wxDefaultPosition,
 361                        const wxSize& size = wxDefaultSize,
 362                        long style = wxDEFAULT_FRAME_STYLE,
 363                        const wxString& name = wxFrameNameStr)
 364             {
 365                 Init();
 366                 Create(parent, winid, title, pos, size, style, name);
 367             }
 368
 369             DECLARE_DYNAMIC_CLASS_NO_COPY(wxTopLevelWindow)
 370         };
 371     #endif // wxTopLevelWindowNative
 372 #endif // __WXUNIVERSAL__/!__WXUNIVERSAL__
 373
 374
 375 #endif // _WX_TOPLEVEL_BASE_H_