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     #include "wx/menu.h"
  39     #include "wx/statusbr.h"
  40 #endif //WX_PRECOMP
  41
  42 #include "wx/settings.h"
  43 #include "wx/x11/private.h"
  44 #include "X11/Xutil.h"
  45
  46 bool wxMWMIsRunning(Window w);
  47
  48 // ----------------------------------------------------------------------------
  49 // wxTopLevelWindowX11 creation
  50 // ----------------------------------------------------------------------------
  51
  52 void wxTopLevelWindowX11::Init()
  53 {
  54     m_iconized =
  55     m_maximizeOnShow = FALSE;
  56
  57     // unlike (almost?) all other windows, frames are created hidden
  58     m_isShown = FALSE;
  59
  60     // Data to save/restore when calling ShowFullScreen
  61     m_fsStyle = 0;
  62     m_fsIsMaximized = FALSE;
  63     m_fsIsShowing = FALSE;
  64 }
  65
  66 bool wxTopLevelWindowX11::Create(wxWindow *parent,
  67                                  wxWindowID id,
  68                                  const wxString& title,
  69                                  const wxPoint& pos,
  70                                  const wxSize& size,
  71                                  long style,
  72                                  const wxString& name)
  73 {
  74     // init our fields
  75     Init();
  76
  77     m_windowStyle = style;
  78     m_parent = parent;
  79
  80     SetName(name);
  81
  82     m_windowId = id == -1 ? NewControlId() : id;
  83
  84     if (parent)
  85         parent->AddChild(this);
  86
  87     wxTopLevelWindows.Append(this);
  88
  89     Display *xdisplay = wxGlobalDisplay();
  90     int xscreen = DefaultScreen( xdisplay );
  91     Visual *xvisual = DefaultVisual( xdisplay, xscreen );
  92     Window xparent = RootWindow( xdisplay, xscreen );
  93     Colormap cm = DefaultColormap( xdisplay, xscreen );
  94
  95     // TODO: For dialogs, this should be wxSYS_COLOUR_3DFACE
  96     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE);
  97     m_backgroundColour.CalcPixel( (WXColormap) cm );
  98     m_hasBgCol = TRUE;
  99
 100     XSetWindowAttributes xattributes;
 101     XSizeHints size_hints;
 102     XWMHints wm_hints;
 103
 104     long xattributes_mask =
 105         CWOverrideRedirect |
 106         CWBorderPixel | CWBackPixel;
 107     xattributes.background_pixel = m_backgroundColour.GetPixel();
 108     xattributes.border_pixel = BlackPixel( xdisplay, xscreen );
 109
 110     // TODO: if we want no border, caption etc.,
 111     // I think we set this to True to remove decorations
 112     xattributes.override_redirect = False;
 113
 114     Window xwindow = XCreateWindow( xdisplay, xparent, pos.x, pos.y, size.x, size.y,
 115        0, DefaultDepth(xdisplay,xscreen), InputOutput, xvisual, xattributes_mask, &xattributes );
 116     m_mainWidget = (WXWindow) xwindow;
 117
 118     XSelectInput( xdisplay, xwindow,
 119         ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
 120         ButtonMotionMask | EnterWindowMask | LeaveWindowMask | PointerMotionMask |
 121         KeymapStateMask | FocusChangeMask | ColormapChangeMask | StructureNotifyMask |
 122         PropertyChangeMask );
 123
 124     wxAddWindowToTable( xwindow, (wxWindow*) this );
 125
 126     XSetTransientForHint( xdisplay, xwindow, xparent );
 127
 128     size_hints.flags = PSize;
 129     size_hints.width = size.x;
 130     size_hints.height = size.y;
 131     XSetWMNormalHints( xdisplay, xwindow, &size_hints);
 132
 133     wm_hints.flags = InputHint | StateHint /* | WindowGroupHint */;
 134     wm_hints.input = True;
 135     wm_hints.initial_state = NormalState;
 136     XSetWMHints( xdisplay, xwindow, &wm_hints);
 137
 138     Atom wm_delete_window = XInternAtom( xdisplay, "WM_DELETE_WINDOW", False);
 139     XSetWMProtocols( xdisplay, xwindow, &wm_delete_window, 1);
 140
 141     wxSetWMDecorations((Window) GetMainWindow(), style);
 142
 143     SetTitle(title);
 144
 145     return TRUE;
 146 }
 147
 148 wxTopLevelWindowX11::~wxTopLevelWindowX11()
 149 {
 150     wxTopLevelWindows.DeleteObject(this);
 151
 152     // If this is the last top-level window, exit.
 153     if ( wxTheApp && (wxTopLevelWindows.Number() == 0) )
 154     {
 155         wxTheApp->SetTopWindow(NULL);
 156
 157         if (wxTheApp->GetExitOnFrameDelete())
 158         {
 159             // Signal to the app that we're going to close
 160             wxTheApp->ExitMainLoop();
 161         }
 162     }
 163 }
 164
 165 // ----------------------------------------------------------------------------
 166 // wxTopLevelWindowX11 showing
 167 // ----------------------------------------------------------------------------
 168
 169 bool wxTopLevelWindowX11::Show(bool show)
 170 {
 171     return wxWindowX11::Show(show);
 172 }
 173
 174 // ----------------------------------------------------------------------------
 175 // wxTopLevelWindowX11 maximize/minimize
 176 // ----------------------------------------------------------------------------
 177
 178 void wxTopLevelWindowX11::Maximize(bool maximize)
 179 {
 180     // TODO
 181 }
 182
 183 bool wxTopLevelWindowX11::IsMaximized() const
 184 {
 185     // TODO
 186     return TRUE;
 187 }
 188
 189 void wxTopLevelWindowX11::Iconize(bool iconize)
 190 {
 191     if (!m_iconized && GetMainWindow())
 192     {
 193         if (XIconifyWindow(wxGlobalDisplay(),
 194             (Window) GetMainWindow(), DefaultScreen(wxGlobalDisplay())) != 0)
 195             m_iconized = TRUE;
 196     }
 197 }
 198
 199 bool wxTopLevelWindowX11::IsIconized() const
 200 {
 201     return m_iconized;
 202 }
 203
 204 void wxTopLevelWindowX11::Restore()
 205 {
 206     // This is the way to deiconify the window, according to the X FAQ
 207     if (m_iconized && GetMainWindow())
 208     {
 209         XMapWindow(wxGlobalDisplay(), (Window) GetMainWindow());
 210         m_iconized = FALSE;
 211     }
 212 }
 213
 214 // ----------------------------------------------------------------------------
 215 // wxTopLevelWindowX11 fullscreen
 216 // ----------------------------------------------------------------------------
 217
 218 bool wxTopLevelWindowX11::ShowFullScreen(bool show, long style)
 219 {
 220     if (show)
 221     {
 222         if (IsFullScreen())
 223             return FALSE;
 224
 225         m_fsIsShowing = TRUE;
 226         m_fsStyle = style;
 227
 228         // TODO
 229
 230         return TRUE;
 231     }
 232     else
 233     {
 234         if (!IsFullScreen())
 235             return FALSE;
 236
 237         m_fsIsShowing = FALSE;
 238
 239         // TODO
 240         return TRUE;
 241     }
 242 }
 243
 244 // ----------------------------------------------------------------------------
 245 // wxTopLevelWindowX11 misc
 246 // ----------------------------------------------------------------------------
 247
 248 void wxTopLevelWindowX11::SetIcon(const wxIcon& icon)
 249 {
 250     // this sets m_icon
 251     wxTopLevelWindowBase::SetIcon(icon);
 252
 253     if (icon.Ok() && GetMainWindow())
 254     {
 255         XWMHints *wmHints = XAllocWMHints();
 256         wmHints->icon_pixmap = (Pixmap) icon.GetPixmap();
 257
 258         wmHints->flags = IconPixmapHint;
 259
 260         if (icon.GetMask())
 261         {
 262             wmHints->flags |= IconMaskHint;
 263             wmHints->icon_mask = (Pixmap) icon.GetMask()->GetBitmap();
 264         }
 265
 266         XSetWMHints(wxGlobalDisplay(), (Window) GetMainWindow(), wmHints);
 267         XFree(wmHints);
 268     }
 269 }
 270
 271 void wxTopLevelWindowX11::SetTitle(const wxString& title)
 272 {
 273     m_title = title;
 274     if (GetMainWindow())
 275     {
 276         XStoreName(wxGlobalDisplay(), (Window) GetMainWindow(),
 277             (const char*) title);
 278         XSetIconName(wxGlobalDisplay(), (Window) GetMainWindow(),
 279             (const char*) title);
 280
 281         // Use this if the platform doesn't supply the above functions.
 282 #if 0
 283         XTextProperty textProperty;
 284         textProperty.value = (unsigned char*) title;
 285         textProperty.encoding = XA_STRING;
 286         textProperty.format = 8;
 287         textProperty.nitems = 1;
 288
 289         XSetTextProperty(wxGlobalDisplay(), (Window) GetMainWindow(),
 290             & textProperty, WM_NAME);
 291 #endif
 292     }
 293 }
 294
 295 wxString wxTopLevelWindowX11::GetTitle() const
 296 {
 297     return m_title;
 298 }
 299
 300 #ifndef MWM_DECOR_BORDER
 301 /* bit definitions for MwmHints.flags */
 302 #define MWM_HINTS_FUNCTIONS (1L << 0)
 303 #define MWM_HINTS_DECORATIONS (1L << 1)
 304 #define MWM_HINTS_INPUT_MODE (1L << 2)
 305 #define MWM_HINTS_STATUS (1L << 3)
 306
 307 #define MWM_DECOR_ALL           (1L << 0)
 308 #define MWM_DECOR_BORDER        (1L << 1)
 309 #define MWM_DECOR_RESIZEH       (1L << 2)
 310 #define MWM_DECOR_TITLE         (1L << 3)
 311 #define MWM_DECOR_MENU          (1L << 4)
 312 #define MWM_DECOR_MINIMIZE      (1L << 5)
 313 #define MWM_DECOR_MAXIMIZE      (1L << 6)
 314 #endif
 315
 316 struct MwmHints {
 317     long flags;
 318     long functions;
 319     long decorations;
 320     long input_mode;
 321 };
 322
 323 #define PROP_MOTIF_WM_HINTS_ELEMENTS 5
 324
 325 // Set the window manager decorations according to the
 326 // given wxWindows style
 327 bool wxSetWMDecorations(Window w, long style)
 328 {
 329     if (!wxMWMIsRunning(w))
 330         return FALSE;
 331
 332     Atom mwm_wm_hints = XInternAtom(wxGlobalDisplay(),"_MOTIF_WM_HINTS", False);
 333     MwmHints hints;
 334     hints.flags = 0;
 335     hints.decorations = 0;
 336
 337     if (style & wxRESIZE_BORDER)
 338     {
 339         hints.flags |= MWM_HINTS_DECORATIONS;
 340         hints.decorations |= MWM_DECOR_RESIZEH;
 341     }
 342
 343     if (style & wxSYSTEM_MENU)
 344     {
 345         hints.flags |= MWM_HINTS_DECORATIONS;
 346         hints.decorations |= MWM_DECOR_MENU;
 347     }
 348
 349     if ((style & wxCAPTION) ||
 350         (style & wxTINY_CAPTION_HORIZ) ||
 351         (style & wxTINY_CAPTION_VERT))
 352     {
 353         hints.flags |= MWM_HINTS_DECORATIONS;
 354         hints.decorations |= MWM_DECOR_TITLE;
 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 & wxTHICK_FRAME)
 364     {
 365         hints.flags |= MWM_HINTS_DECORATIONS;
 366         hints.decorations |= MWM_DECOR_BORDER;
 367     }
 368
 369     if (style & wxMINIMIZE_BOX)
 370     {
 371         hints.flags |= MWM_HINTS_DECORATIONS;
 372         hints.decorations |= MWM_DECOR_MINIMIZE;
 373     }
 374
 375     if (style & wxMAXIMIZE_BOX)
 376     {
 377         hints.flags |= MWM_HINTS_DECORATIONS;
 378         hints.decorations |= MWM_DECOR_MAXIMIZE;
 379     }
 380
 381     XChangeProperty(wxGlobalDisplay(),
 382                     w,
 383                     mwm_wm_hints, mwm_wm_hints,
 384                     32, PropModeReplace,
 385                     (unsigned char *) &hints, PROP_MOTIF_WM_HINTS_ELEMENTS);
 386
 387     return TRUE;
 388 }
 389
 390 bool wxMWMIsRunning(Window w)
 391 {
 392     Display *dpy = (Display*)wxGetDisplay();
 393     Atom motifWmInfo = XInternAtom(dpy, "_MOTIF_WM_INFO", False);
 394
 395     unsigned long length, bytesafter;
 396     unsigned char value[20];
 397     unsigned char *ptr = &value[0];
 398     int ret, format;
 399     Atom type;
 400
 401     type = format = length = 0;
 402     value[0] = 0;
 403
 404     ret = XGetWindowProperty(wxGlobalDisplay(), w, motifWmInfo,
 405             0L, 2, False, motifWmInfo,
 406             &type, &format, &length, &bytesafter, &ptr);
 407
 408     return (ret == Success);
 409 }
 410
 411 // For implementation purposes - sometimes decorations make the client area
 412 // smaller
 413 wxPoint wxTopLevelWindowX11::GetClientAreaOrigin() const
 414 {
 415     // In fact wxFrame::GetClientAreaOrigin
 416     // does the required calculation already.
 417 #if 0
 418     if (this->IsKindOf(CLASSINFO(wxFrame)))
 419     {
 420         wxFrame* frame = (wxFrame*) this;
 421         if (frame->GetMenuBar())
 422             return wxPoint(0, frame->GetMenuBar()->GetSize().y);
 423     }
 424 #endif
 425     return wxPoint(0, 0);
 426 }
 427
 428 void wxTopLevelWindowX11::DoGetClientSize( int *width, int *height ) const
 429 {
 430     wxWindowX11::DoGetClientSize(width, height);
 431     // Done by wxTopLevelWindow
 432 #if 0
 433     if (this->IsKindOf(CLASSINFO(wxFrame)))
 434     {
 435         wxFrame* frame = (wxFrame*) this;
 436         if (frame->GetMenuBar())
 437             (*height) -= frame->GetMenuBar()->GetSize().y;
 438         if (frame->GetStatusBar())
 439             (*height) -= frame->GetStatusBar()->GetSize().y;
 440     }
 441 #endif
 442 }
 443
 444 void wxTopLevelWindowX11::DoSetClientSize(int width, int height)
 445 {
 446     wxWindowX11::DoSetClientSize(width, height);
 447 #if 0
 448     if (!GetMainWindow())
 449         return;
 450
 451     XWindowChanges windowChanges;
 452     int valueMask = 0;
 453
 454     if (width != -1)
 455     {
 456         windowChanges.width = width ;
 457         valueMask |= CWWidth;
 458     }
 459     if (height != -1)
 460     {
 461         windowChanges.height = height ;
 462         valueMask |= CWHeight;
 463     }
 464     XConfigureWindow(wxGlobalDisplay(), (Window) GetMainWindow(),
 465         valueMask, & windowChanges);
 466 #endif
 467 }