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/window.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 wxWindow
 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     const wxIcon& GetIcon() const { return m_icons.GetIcon( -1 ); }
 149
 150     // get the frame icons
 151     const wxIconBundle& GetIcons() const { return m_icons; }
 152
 153     // set the frame icon
 154     virtual void SetIcon(const wxIcon& icon) { m_icons = wxIconBundle( 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     // Set the shape of the window to the given region.
 171     // Returns true if the platform supports this feature (and the
 172     // operation is successful.)
 173     virtual bool SetShape(const wxRegion& WXUNUSED(region)) { return false; }
 174
 175     // Attracts the users attention to this window if the application is
 176     // inactive (should be called when a background event occurs)
 177     virtual void RequestUserAttention(int flags = wxUSER_ATTENTION_INFO);
 178
 179     // Is this the active frame (highlighted in the taskbar)?
 180     virtual bool IsActive() { return wxGetTopLevelParent(FindFocus()) == this; }
 181
 182     // this function may be overridden to return false to allow closing the
 183     // application even when this top level window is still open
 184     //
 185     // notice that the window is still closed prior to the application exit and
 186     // so it can still veto it even if it returns false from here
 187     virtual bool ShouldPreventAppExit() const { return true; }
 188
 189
 190 #if defined(__SMARTPHONE__)
 191     virtual void SetLeftMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 192     virtual void SetRightMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 193 #endif // __SMARTPHONE__
 194
 195     // centre the window on screen: this is just a shortcut
 196     void CentreOnScreen(int dir = wxBOTH) { DoCentre(dir | wxCENTRE_ON_SCREEN); }
 197     void CenterOnScreen(int dir = wxBOTH) { CentreOnScreen(dir); }
 198
 199     // Set window transparency if the platform supports it
 200     virtual bool SetTransparent(wxByte WXUNUSED(alpha)) { return false; }
 201     virtual bool CanSetTransparent() { return false; }
 202
 203
 204     // default item access: we have a permanent default item which is the one
 205     // set by the user code but we may also have a temporary default item which
 206     // would be chosen if the user pressed "Enter" now but the default action
 207     // reverts to the "permanent" default as soon as this temporary default
 208     // item loses focus
 209
 210     // used to reset default if pointing to removed child
 211     virtual void RemoveChild(wxWindowBase *child);
 212
 213     // get the default item, temporary or permanent
 214     wxWindow *GetDefaultItem() const
 215         { return m_winTmpDefault ? m_winTmpDefault : m_winDefault; }
 216
 217     // set the permanent default item, return the old default
 218     wxWindow *SetDefaultItem(wxWindow *win)
 219         { wxWindow *old = GetDefaultItem(); m_winDefault = win; return old; }
 220
 221     // return the temporary default item, can be NULL
 222     wxWindow *GetTmpDefaultItem() const { return m_winTmpDefault; }
 223
 224     // set a temporary default item, SetTmpDefaultItem(NULL) should be called
 225     // soon after a call to SetTmpDefaultItem(window), return the old default
 226     wxWindow *SetTmpDefaultItem(wxWindow *win)
 227         { wxWindow *old = GetDefaultItem(); m_winTmpDefault = win; return old; }
 228
 229
 230     // implementation only from now on
 231     // -------------------------------
 232
 233     // override some base class virtuals
 234     virtual bool Destroy();
 235     virtual bool IsTopLevel() const { return true; }
 236     virtual wxSize GetMaxSize() const;
 237
 238     // event handlers
 239     void OnCloseWindow(wxCloseEvent& event);
 240     void OnSize(wxSizeEvent& WXUNUSED(event)) { DoLayout(); }
 241
 242     // Get rect to be used to center top-level children
 243     virtual void GetRectForTopLevelChildren(int *x, int *y, int *w, int *h);
 244
 245     // this should go away, but for now it's called from docview.cpp,
 246     // so should be there for all platforms
 247     void OnActivate(wxActivateEvent &WXUNUSED(event)) { }
 248
 249     // do the window-specific processing after processing the update event
 250     virtual void DoUpdateWindowUI(wxUpdateUIEvent& event) ;
 251
 252 protected:
 253     // the frame client to screen translation should take account of the
 254     // toolbar which may shift the origin of the client area
 255     virtual void DoClientToScreen(int *x, int *y) const;
 256     virtual void DoScreenToClient(int *x, int *y) const;
 257
 258     // add support for wxCENTRE_ON_SCREEN
 259     virtual void DoCentre(int dir);
 260
 261     // no need to do client to screen translation to get our position in screen
 262     // coordinates: this is already the case
 263     virtual void DoGetScreenPosition(int *x, int *y) const
 264     {
 265         DoGetPosition(x, y);
 266     }
 267
 268     // test whether this window makes part of the frame
 269     // (menubar, toolbar and statusbar are excluded from automatic layout)
 270     virtual bool IsOneOfBars(const wxWindow *WXUNUSED(win)) const
 271         { return false; }
 272
 273     // check if we should exit the program after deleting this window
 274     bool IsLastBeforeExit() const;
 275
 276     // send the iconize event, return true if processed
 277     bool SendIconizeEvent(bool iconized = true);
 278
 279     // do TLW-specific layout: we resize our unique child to fill the entire
 280     // client area
 281     void DoLayout();
 282
 283     // Get the default size for the new window if no explicit size given. If
 284     // there are better default sizes then these can be changed, just as long
 285     // as they are not too small for TLWs (and not larger than screen).
 286     static wxSize GetDefaultSize();
 287     static int WidthDefault(int w) { return w == wxDefaultCoord ? GetDefaultSize().x : w; }
 288     static int HeightDefault(int h) { return h == wxDefaultCoord ? GetDefaultSize().y : h; }
 289
 290     // the frame icon
 291     wxIconBundle m_icons;
 292
 293     // a default window (usually a button) or NULL
 294     wxWindow *m_winDefault;
 295
 296     // a temporary override of m_winDefault, use the latter if NULL
 297     wxWindow *m_winTmpDefault;
 298
 299     DECLARE_NO_COPY_CLASS(wxTopLevelWindowBase)
 300     DECLARE_EVENT_TABLE()
 301 };
 302
 303
 304 // include the real class declaration
 305 #if defined(__WXPALMOS__)
 306     #include "wx/palmos/toplevel.h"
 307     #define wxTopLevelWindowNative wxTopLevelWindowPalm
 308 #elif defined(__WXMSW__)
 309     #include "wx/msw/toplevel.h"
 310     #define wxTopLevelWindowNative wxTopLevelWindowMSW
 311 #elif defined(__WXGTK20__)
 312     #include "wx/gtk/toplevel.h"
 313     #define wxTopLevelWindowNative wxTopLevelWindowGTK
 314 #elif defined(__WXGTK__)
 315     #include "wx/gtk1/toplevel.h"
 316     #define wxTopLevelWindowNative wxTopLevelWindowGTK
 317 #elif defined(__WXX11__)
 318     #include "wx/x11/toplevel.h"
 319     #define wxTopLevelWindowNative wxTopLevelWindowX11
 320 #elif defined(__WXMGL__)
 321     #include "wx/mgl/toplevel.h"
 322     #define wxTopLevelWindowNative wxTopLevelWindowMGL
 323 #elif defined(__WXMAC__)
 324     #include "wx/mac/toplevel.h"
 325     #define wxTopLevelWindowNative wxTopLevelWindowMac
 326 #elif defined(__WXCOCOA__)
 327     #include "wx/cocoa/toplevel.h"
 328     #define wxTopLevelWindowNative wxTopLevelWindowCocoa
 329 #elif defined(__WXPM__)
 330     #include "wx/os2/toplevel.h"
 331     #define wxTopLevelWindowNative wxTopLevelWindowOS2
 332 #elif defined(__WXMOTIF__)
 333     #include "wx/motif/toplevel.h"
 334     #define wxTopLevelWindowNative wxTopLevelWindowMotif
 335 #endif
 336
 337 #ifdef __WXUNIVERSAL__
 338     #include "wx/univ/toplevel.h"
 339 #else // !__WXUNIVERSAL__
 340     #ifdef wxTopLevelWindowNative
 341         class WXDLLEXPORT wxTopLevelWindow : public wxTopLevelWindowNative
 342         {
 343         public:
 344             // construction
 345             wxTopLevelWindow() { Init(); }
 346             wxTopLevelWindow(wxWindow *parent,
 347                        wxWindowID winid,
 348                        const wxString& title,
 349                        const wxPoint& pos = wxDefaultPosition,
 350                        const wxSize& size = wxDefaultSize,
 351                        long style = wxDEFAULT_FRAME_STYLE,
 352                        const wxString& name = wxFrameNameStr)
 353             {
 354                 Init();
 355                 Create(parent, winid, title, pos, size, style, name);
 356             }
 357
 358             DECLARE_DYNAMIC_CLASS_NO_COPY(wxTopLevelWindow)
 359         };
 360     #endif // wxTopLevelWindowNative
 361 #endif // __WXUNIVERSAL__/!__WXUNIVERSAL__
 362
 363
 364 #endif // _WX_TOPLEVEL_BASE_H_