src/x11/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        x11/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for X11
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     24.09.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2002 Julian Smart
   9 // License:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "toplevel.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/toplevel.h"
  34     #include "wx/string.h"
  35     #include "wx/log.h"
  36     #include "wx/intl.h"
  37     #include "wx/frame.h"
  38 #endif //WX_PRECOMP
  39
  40 #include "wx/x11/private.h"
  41 #include "X11/Xatom.h"
  42 #include "X11/Xutil.h"
  43
  44 // list of all frames and modeless dialogs
  45 // wxWindowList wxModelessWindows;
  46
  47 // ----------------------------------------------------------------------------
  48 // wxTopLevelWindowX11 creation
  49 // ----------------------------------------------------------------------------
  50
  51 void wxTopLevelWindowX11::Init()
  52 {
  53     m_iconized =
  54     m_maximizeOnShow = FALSE;
  55
  56     // unlike (almost?) all other windows, frames are created hidden
  57     m_isShown = FALSE;
  58
  59     // Data to save/restore when calling ShowFullScreen
  60     m_fsStyle = 0;
  61     m_fsIsMaximized = FALSE;
  62     m_fsIsShowing = FALSE;
  63 }
  64
  65 bool wxTopLevelWindowX11::Create(wxWindow *parent,
  66                                  wxWindowID id,
  67                                  const wxString& title,
  68                                  const wxPoint& pos,
  69                                  const wxSize& size,
  70                                  long style,
  71                                  const wxString& name)
  72 {
  73     // init our fields
  74     Init();
  75
  76     m_windowStyle = style;
  77     m_parent = parent;
  78
  79     SetName(name);
  80
  81     m_windowId = id == -1 ? NewControlId() : id;
  82
  83     if (parent)
  84         parent->AddChild(this);
  85
  86     wxTopLevelWindows.Append(this);
  87
  88     Display *xdisplay = wxGlobalDisplay();
  89     int xscreen = DefaultScreen( xdisplay );
  90     Visual *xvisual = DefaultVisual( xdisplay, xscreen );
  91     Window xparent = RootWindow( xdisplay, xscreen );
  92
  93     XSetWindowAttributes xattributes;
  94     XSizeHints size_hints;
  95     XWMHints wm_hints;
  96
  97     long xattributes_mask =
  98         CWEventMask |
  99         CWBorderPixel | CWBackPixel;
 100     xattributes.background_pixel = BlackPixel( xdisplay, xscreen );
 101     xattributes.border_pixel = BlackPixel( xdisplay, xscreen );
 102     xattributes.override_redirect = False;
 103
 104     Window xwindow = XCreateWindow( xdisplay, xparent, pos.x, pos.y, size.x, size.y,
 105        0, DefaultDepth(xdisplay,xscreen), InputOutput, xvisual, xattributes_mask, &xattributes );
 106     m_mainWidget = (WXWindow) xwindow;
 107
 108     XSelectInput( xdisplay, xwindow,
 109         ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
 110         ButtonMotionMask | EnterWindowMask | LeaveWindowMask | PointerMotionMask |
 111         KeymapStateMask | FocusChangeMask | ColormapChangeMask | StructureNotifyMask |
 112         PropertyChangeMask );
 113
 114     wxAddWindowToTable( xwindow, (wxWindow*) this );
 115
 116     XSetTransientForHint( xdisplay, xwindow, xparent );
 117
 118     size_hints.flags = PSize;
 119     size_hints.width = size.x;
 120     size_hints.height = size.y;
 121     XSetWMNormalHints( xdisplay, xwindow, &size_hints);
 122
 123     wm_hints.flags = InputHint | StateHint /* | WindowGroupHint */;
 124     wm_hints.input = True;
 125     wm_hints.initial_state = NormalState;
 126     XSetWMHints( xdisplay, xwindow, &wm_hints);
 127
 128     Atom wm_delete_window = XInternAtom( xdisplay, "WM_DELETE_WINDOW", False);
 129     XSetWMProtocols( xdisplay, xwindow, &wm_delete_window, 1);
 130
 131     wxSetWMDecorations((Window) GetMainWindow(), style);
 132
 133     SetTitle(title);
 134
 135     return TRUE;
 136 }
 137
 138 wxTopLevelWindowX11::~wxTopLevelWindowX11()
 139 {
 140     wxTopLevelWindows.DeleteObject(this);
 141
 142     // If this is the last top-level window, exit.
 143     if ( wxTheApp && (wxTopLevelWindows.Number() == 0) )
 144     {
 145         wxTheApp->SetTopWindow(NULL);
 146
 147         if (wxTheApp->GetExitOnFrameDelete())
 148         {
 149             // Signal to the app that we're going to close
 150             wxTheApp->ExitMainLoop();
 151         }
 152     }
 153 }
 154
 155 // ----------------------------------------------------------------------------
 156 // wxTopLevelWindowX11 showing
 157 // ----------------------------------------------------------------------------
 158
 159 bool wxTopLevelWindowX11::Show(bool show)
 160 {
 161     if ( !wxWindowBase::Show(show) )
 162         return FALSE;
 163
 164     return wxWindowX11::Show(show);
 165 }
 166
 167 // ----------------------------------------------------------------------------
 168 // wxTopLevelWindowX11 maximize/minimize
 169 // ----------------------------------------------------------------------------
 170
 171 void wxTopLevelWindowX11::Maximize(bool maximize)
 172 {
 173     // TODO
 174 }
 175
 176 bool wxTopLevelWindowX11::IsMaximized() const
 177 {
 178     // TODO
 179     return TRUE;
 180 }
 181
 182 void wxTopLevelWindowX11::Iconize(bool iconize)
 183 {
 184     if (!m_iconized && GetMainWindow())
 185     {
 186         if (XIconifyWindow(wxGlobalDisplay(),
 187             (Window) GetMainWindow(), DefaultScreen(wxGlobalDisplay())) != 0)
 188             m_iconized = TRUE;
 189     }
 190 }
 191
 192 bool wxTopLevelWindowX11::IsIconized() const
 193 {
 194     return m_iconized;
 195 }
 196
 197 void wxTopLevelWindowX11::Restore()
 198 {
 199     // This is the way to deiconify the window, according to the X FAQ
 200     if (m_iconized && GetMainWindow())
 201     {
 202         XMapWindow(wxGlobalDisplay(), (Window) GetMainWindow());
 203         m_iconized = FALSE;
 204     }
 205 }
 206
 207 // ----------------------------------------------------------------------------
 208 // wxTopLevelWindowX11 fullscreen
 209 // ----------------------------------------------------------------------------
 210
 211 bool wxTopLevelWindowX11::ShowFullScreen(bool show, long style)
 212 {
 213     if (show)
 214     {
 215         if (IsFullScreen())
 216             return FALSE;
 217
 218         m_fsIsShowing = TRUE;
 219         m_fsStyle = style;
 220
 221         // TODO
 222
 223         return TRUE;
 224     }
 225     else
 226     {
 227         if (!IsFullScreen())
 228             return FALSE;
 229
 230         m_fsIsShowing = FALSE;
 231
 232         // TODO
 233         return TRUE;
 234     }
 235 }
 236
 237 // ----------------------------------------------------------------------------
 238 // wxTopLevelWindowX11 misc
 239 // ----------------------------------------------------------------------------
 240
 241 void wxTopLevelWindowX11::SetIcon(const wxIcon& icon)
 242 {
 243     // this sets m_icon
 244     wxTopLevelWindowBase::SetIcon(icon);
 245
 246     if (icon.Ok() && GetMainWindow())
 247     {
 248         XWMHints *wmHints = XAllocWMHints();
 249         wmHints->icon_pixmap = (Pixmap) icon.GetPixmap();
 250
 251         wmHints->flags = IconPixmapHint;
 252
 253         if (icon.GetMask())
 254         {
 255             wmHints->flags |= IconMaskHint;
 256             wmHints->icon_mask = (Pixmap) icon.GetMask()->GetPixmap();
 257         }
 258
 259         XSetWMHints(wxGlobalDisplay(), (Window) GetMainWindow(),
 260             wmHints);
 261         XFree(wmHints);
 262     }
 263 }
 264
 265 void wxTopLevelWindowX11::SetTitle(const wxString& title)
 266 {
 267     m_title = title;
 268     if (GetMainWindow())
 269     {
 270         XStoreName(wxGlobalDisplay(), (Window) GetMainWindow(),
 271             (const char*) title);
 272         XSetIconName(wxGlobalDisplay(), (Window) GetMainWindow(),
 273             (const char*) title);
 274
 275         // Use this if the platform doesn't supply the above functions.
 276 #if 0
 277         XTextProperty textProperty;
 278         textProperty.value = (unsigned char*) title;
 279         textProperty.encoding = XA_STRING;
 280         textProperty.format = 8;
 281         textProperty.nitems = 1;
 282
 283         XSetTextProperty(wxGlobalDisplay(), (Window) GetMainWindow(),
 284             & textProperty, WM_NAME);
 285 #endif
 286     }
 287 }
 288
 289 wxString wxTopLevelWindowX11::GetTitle() const
 290 {
 291     return m_title;
 292 }
 293
 294 #ifndef MWM_DECOR_BORDER
 295 /* bit definitions for MwmHints.flags */
 296 #define MWM_HINTS_FUNCTIONS (1L << 0)
 297 #define MWM_HINTS_DECORATIONS (1L << 1)
 298 #define MWM_HINTS_INPUT_MODE (1L << 2)
 299 #define MWM_HINTS_STATUS (1L << 3)
 300
 301 #define MWM_DECOR_ALL           (1L << 0)
 302 #define MWM_DECOR_BORDER        (1L << 1)
 303 #define MWM_DECOR_RESIZEH       (1L << 2)
 304 #define MWM_DECOR_TITLE         (1L << 3)
 305 #define MWM_DECOR_MENU          (1L << 4)
 306 #define MWM_DECOR_MINIMIZE      (1L << 5)
 307 #define MWM_DECOR_MAXIMIZE      (1L << 6)
 308 #endif
 309
 310 struct MwmHints {
 311     long flags;
 312     long functions;
 313     long decorations;
 314     long input_mode;
 315 };
 316
 317 #define PROP_MOTIF_WM_HINTS_ELEMENTS 5
 318
 319 // Set the window manager decorations according to the
 320 // given wxWindows style
 321 bool wxSetWMDecorations(Window w, long style)
 322 {
 323     if (!wxMWMIsRunning(w))
 324         return FALSE;
 325
 326     Atom mwm_wm_hints = XInternAtom(wxGlobalDisplay(),"_MOTIF_WM_HINTS", False);
 327     MwmHints hints;
 328     hints.flags = 0;
 329     hints.decorations = 0;
 330
 331     if (style & wxRESIZE_BORDER)
 332     {
 333         hints.flags |= MWM_HINTS_DECORATIONS;
 334         hints.decorations |= MWM_DECOR_RESIZEH;
 335     }
 336
 337     if (style & wxSYSTEM_MENU)
 338     {
 339         hints.flags |= MWM_HINTS_DECORATIONS;
 340         hints.decorations |= MWM_DECOR_MENU;
 341     }
 342
 343     if ((style & wxCAPTION) ||
 344         (style & wxTINY_CAPTION_HORIZ) ||
 345         (style & wxTINY_CAPTION_VERT))
 346     {
 347         hints.flags |= MWM_HINTS_DECORATIONS;
 348         hints.decorations |= MWM_DECOR_TITLE;
 349     }
 350
 351     if (style & wxTHICK_FRAME)
 352     {
 353         hints.flags |= MWM_HINTS_DECORATIONS;
 354         hints.decorations |= MWM_DECOR_BORDER;
 355     }
 356
 357     if (style & wxTHICK_FRAME)
 358     {
 359         hints.flags |= MWM_HINTS_DECORATIONS;
 360         hints.decorations |= MWM_DECOR_BORDER;
 361     }
 362
 363     if (style & wxMINIMIZE_BOX)
 364     {
 365         hints.flags |= MWM_HINTS_DECORATIONS;
 366         hints.decorations |= MWM_DECOR_MINIMIZE;
 367     }
 368
 369     if (style & wxMAXIMIZE_BOX)
 370     {
 371         hints.flags |= MWM_HINTS_DECORATIONS;
 372         hints.decorations |= MWM_DECOR_MAXIMIZE;
 373     }
 374
 375     XChangeProperty(wxGlobalDisplay(),
 376                     w,
 377                     mwm_wm_hints, mwm_wm_hints,
 378                     32, PropModeReplace,
 379                     (unsigned char *) &hints, PROP_MOTIF_WM_HINTS_ELEMENTS);
 380
 381     return TRUE;
 382 }
 383
 384 bool wxMWMIsRunning(Window w)
 385 {
 386     Display *dpy = (Display*)wxGetDisplay();
 387     Atom motifWmInfo = XInternAtom(dpy, "_MOTIF_WM_INFO", False);
 388
 389     unsigned long length, bytesafter;
 390     unsigned char value[20];
 391     unsigned char *ptr = &value[0];
 392     int ret, format;
 393     Atom type;
 394
 395     type = format = length = 0;
 396     value[0] = 0;
 397
 398     ret = XGetWindowProperty(wxGlobalDisplay(), w, motifWmInfo,
 399             0L, 2, False, motifWmInfo,
 400             &type, &format, &length, &bytesafter, &ptr);
 401
 402     return (ret == Success);
 403 }
 404