src/msw/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for MSW
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     24.09.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   9 // License:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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/dialog.h"
  35     #include "wx/string.h"
  36     #include "wx/log.h"
  37     #include "wx/intl.h"
  38     #include "wx/frame.h"
  39     #include "wx/containr.h"        // wxSetFocusToChild()
  40 #endif //WX_PRECOMP
  41
  42 #include "wx/module.h"
  43 #include "wx/dynlib.h"
  44
  45 #include "wx/msw/private.h"
  46 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__)
  47   #include <ole2.h>
  48   #include <shellapi.h>
  49   // Standard SDK doesn't have aygshell.dll: see include/wx/msw/wince/libraries.h
  50   #if _WIN32_WCE < 400 || !defined(__WINCE_STANDARDSDK__)
  51     #include <aygshell.h>
  52   #endif
  53 #include "wx/msw/wince/missing.h"
  54 #endif
  55
  56 #include "wx/msw/missing.h"
  57 #include "wx/msw/winundef.h"
  58
  59 #include "wx/display.h"
  60
  61 #ifndef ICON_BIG
  62     #define ICON_BIG 1
  63 #endif
  64
  65 #ifndef ICON_SMALL
  66     #define ICON_SMALL 0
  67 #endif
  68
  69 // ----------------------------------------------------------------------------
  70 // stubs for missing functions under MicroWindows
  71 // ----------------------------------------------------------------------------
  72
  73 #ifdef __WXMICROWIN__
  74
  75 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return false; }
  76 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return false; }
  77
  78 #endif // __WXMICROWIN__
  79
  80 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  81 //     is not included by wxUniv build which does need wxDlgProc
  82 LONG APIENTRY _EXPORT
  83 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  84
  85 // ----------------------------------------------------------------------------
  86 // globals
  87 // ----------------------------------------------------------------------------
  88
  89 // the name of the default wxWidgets class
  90 #ifdef __WXWINCE__
  91 extern       wxChar *wxCanvasClassName;
  92 #else
  93 extern const wxChar *wxCanvasClassName;
  94 #endif
  95
  96 // ----------------------------------------------------------------------------
  97 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
  98 // module to ensure that the window is always deleted)
  99 // ----------------------------------------------------------------------------
 100
 101 class wxTLWHiddenParentModule : public wxModule
 102 {
 103 public:
 104     // module init/finalize
 105     virtual bool OnInit();
 106     virtual void OnExit();
 107
 108     // get the hidden window (creates on demand)
 109     static HWND GetHWND();
 110
 111 private:
 112     // the HWND of the hidden parent
 113     static HWND ms_hwnd;
 114
 115     // the class used to create it
 116     static const wxChar *ms_className;
 117
 118     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 119 };
 120
 121 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 122
 123 // ============================================================================
 124 // wxTopLevelWindowMSW implementation
 125 // ============================================================================
 126
 127 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 128     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 129 END_EVENT_TABLE()
 130
 131 // ----------------------------------------------------------------------------
 132 // wxTopLevelWindowMSW creation
 133 // ----------------------------------------------------------------------------
 134
 135 void wxTopLevelWindowMSW::Init()
 136 {
 137     m_iconized =
 138     m_maximizeOnShow = false;
 139
 140     // Data to save/restore when calling ShowFullScreen
 141     m_fsStyle = 0;
 142     m_fsOldWindowStyle = 0;
 143     m_fsIsMaximized = false;
 144     m_fsIsShowing = false;
 145
 146     m_winLastFocused = (wxWindow *)NULL;
 147
 148 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
 149     m_MenuBarHWND = 0;
 150 #endif
 151 }
 152
 153 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 154 {
 155     // let the base class deal with the common styles but fix the ones which
 156     // don't make sense for us (we also deal with the borders ourselves)
 157     WXDWORD msflags = wxWindow::MSWGetStyle
 158                       (
 159                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 160                       ) & ~WS_CHILD & ~WS_VISIBLE;
 161
 162     // For some reason, WS_VISIBLE needs to be defined on creation for
 163     // SmartPhone 2003. The title can fail to be displayed otherwise.
 164 #if defined(__SMARTPHONE__) || (defined(__WXWINCE__) && _WIN32_WCE < 400)
 165     msflags |= WS_VISIBLE;
 166     ((wxTopLevelWindowMSW*)this)->wxWindowBase::Show(true);
 167 #endif
 168
 169     // first select the kind of window being created
 170     //
 171     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 172     // creates a window with both caption and border, hence we need to use
 173     // WS_POPUP in a few cases just to avoid having caption/border which we
 174     // don't want
 175
 176 #if !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
 177     // border and caption styles
 178     if ( style & wxRESIZE_BORDER )
 179         msflags |= WS_THICKFRAME;
 180     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 181         *exflags |= WS_EX_DLGMODALFRAME;
 182     else if ( !(style & wxBORDER_NONE) )
 183         msflags |= WS_BORDER;
 184     else
 185         msflags |= WS_POPUP;
 186 #endif
 187
 188     // normally we consider that all windows without a caption must be popups,
 189     // but CE is an exception: there windows normally do not have the caption
 190     // but shouldn't be made popups as popups can't have menus and don't look
 191     // like normal windows anyhow
 192
 193     // TODO: Smartphone appears to like wxCAPTION, but we should check that
 194     // we need it.
 195 #if defined(__SMARTPHONE__) || !defined(__WXWINCE__)
 196     if ( style & wxCAPTION )
 197         msflags |= WS_CAPTION;
 198 #ifndef __WXWINCE__
 199     else
 200         msflags |= WS_POPUP;
 201 #endif // !__WXWINCE__
 202 #endif
 203
 204     // next translate the individual flags
 205     if ( style & wxMINIMIZE_BOX )
 206         msflags |= WS_MINIMIZEBOX;
 207     if ( style & wxMAXIMIZE_BOX )
 208         msflags |= WS_MAXIMIZEBOX;
 209
 210 #ifndef __WXWINCE__
 211     if ( style & wxSYSTEM_MENU )
 212         msflags |= WS_SYSMENU;
 213 #endif
 214
 215     // NB: under CE these 2 styles are not supported currently, we should
 216     //     call Minimize()/Maximize() "manually" if we want to support them
 217     if ( style & wxMINIMIZE )
 218         msflags |= WS_MINIMIZE;
 219
 220 #if !defined(__POCKETPC__)
 221     if ( style & wxMAXIMIZE )
 222         msflags |= WS_MAXIMIZE;
 223 #endif
 224
 225     // Keep this here because it saves recoding this function in wxTinyFrame
 226     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 227         msflags |= WS_CAPTION;
 228
 229     if ( exflags )
 230     {
 231         // there is no taskbar under CE, so omit all this
 232 #if !defined(__WXWINCE__)
 233         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 234         {
 235             if ( style & wxFRAME_TOOL_WINDOW )
 236             {
 237                 // create the palette-like window
 238                 *exflags |= WS_EX_TOOLWINDOW;
 239
 240                 // tool windows shouldn't appear on the taskbar (as documented)
 241                 style |= wxFRAME_NO_TASKBAR;
 242             }
 243
 244             // We have to solve 2 different problems here:
 245             //
 246             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 247             //    taskbar even if they don't have a parent
 248             //
 249             // 2. frames without this style should appear in the taskbar even
 250             //    if they're owned (Windows only puts non owned windows into
 251             //    the taskbar normally)
 252             //
 253             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 254             // first one is dealt with in our MSWGetParent() method
 255             // implementation
 256             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 257             {
 258                 // need to force the frame to appear in the taskbar
 259                 *exflags |= WS_EX_APPWINDOW;
 260             }
 261             //else: nothing to do [here]
 262         }
 263
 264         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 265             *exflags |= WS_EX_CONTEXTHELP;
 266 #endif // !__WXWINCE__
 267
 268         if ( style & wxSTAY_ON_TOP )
 269             *exflags |= WS_EX_TOPMOST;
 270     }
 271
 272     return msflags;
 273 }
 274
 275 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 276 {
 277     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 278     // parent HWND or it would be always on top of its parent which is not what
 279     // we usually want (in fact, we only want it for frames with the
 280     // wxFRAME_FLOAT_ON_PARENT flag)
 281     HWND hwndParent = NULL;
 282     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 283     {
 284         const wxWindow *parent = GetParent();
 285
 286         if ( !parent )
 287         {
 288             // this flag doesn't make sense then and will be ignored
 289             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 290         }
 291         else
 292         {
 293             hwndParent = GetHwndOf(parent);
 294         }
 295     }
 296     //else: don't float on parent, must not be owned
 297
 298     // now deal with the 2nd taskbar-related problem (see comments above in
 299     // MSWGetStyle())
 300     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 301     {
 302         // use hidden parent
 303         hwndParent = wxTLWHiddenParentModule::GetHWND();
 304     }
 305
 306     return (WXHWND)hwndParent;
 307 }
 308
 309 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 310                                        const wxString& title,
 311                                        const wxPoint& pos,
 312                                        const wxSize& size)
 313 {
 314 #ifdef __WXMICROWIN__
 315     // no dialogs support under MicroWin yet
 316     return CreateFrame(title, pos, size);
 317 #else // !__WXMICROWIN__
 318     wxWindow *parent = GetParent();
 319
 320     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 321     // app window as parent - this avoids creating modal dialogs without
 322     // parent
 323     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 324     {
 325         parent = wxTheApp->GetTopWindow();
 326
 327         if ( parent )
 328         {
 329             // don't use transient windows as parents, this is dangerous as it
 330             // can lead to a crash if the parent is destroyed before the child
 331             //
 332             // also don't use the window which is currently hidden as then the
 333             // dialog would be hidden as well
 334             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 335                     !parent->IsShown() )
 336             {
 337                 parent = NULL;
 338             }
 339         }
 340     }
 341
 342     m_hWnd = (WXHWND)::CreateDialogIndirect
 343                        (
 344                         wxGetInstance(),
 345                         (DLGTEMPLATE*)dlgTemplate,
 346                         parent ? GetHwndOf(parent) : NULL,
 347                         (DLGPROC)wxDlgProc
 348                        );
 349
 350     if ( !m_hWnd )
 351     {
 352         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 353
 354         wxLogSysError(wxT("Can't create dialog using memory template"));
 355
 356         return false;
 357     }
 358
 359     WXDWORD exflags;
 360     (void)MSWGetCreateWindowFlags(&exflags);
 361
 362     if ( exflags )
 363     {
 364         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 365         ::SetWindowPos(GetHwnd(),
 366                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 367                        0, 0, 0, 0,
 368                        SWP_NOSIZE |
 369                        SWP_NOMOVE |
 370                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 371                        SWP_NOACTIVATE);
 372     }
 373
 374 #if !defined(__WXWINCE__)
 375     // For some reason, the system menu is activated when we use the
 376     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 377     if ( exflags & WS_EX_CONTEXTHELP )
 378     {
 379         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 380         if ( winTop )
 381         {
 382             wxIcon icon = winTop->GetIcon();
 383             if ( icon.Ok() )
 384             {
 385                 ::SendMessage(GetHwnd(), WM_SETICON,
 386                               (WPARAM)TRUE,
 387                               (LPARAM)GetHiconOf(icon));
 388             }
 389         }
 390     }
 391 #endif
 392
 393     // move the dialog to its initial position without forcing repainting
 394     int x, y, w, h;
 395     (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
 396
 397     if ( x == (int)CW_USEDEFAULT )
 398     {
 399         // centre it on the screen - what else can we do?
 400         wxSize sizeDpy = wxGetDisplaySize();
 401
 402         x = (sizeDpy.x - w) / 2;
 403         y = (sizeDpy.y - h) / 2;
 404     }
 405
 406 #if !defined(__WXWINCE__) || defined(__WINCE_STANDARDSDK__)
 407     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 408     {
 409         wxLogLastError(wxT("MoveWindow"));
 410     }
 411 #endif
 412
 413     if ( !title.empty() )
 414     {
 415         ::SetWindowText(GetHwnd(), title);
 416     }
 417
 418     SubclassWin(m_hWnd);
 419
 420 #ifdef __SMARTPHONE__
 421     // Work around title non-display glitch
 422     Show(false);
 423 #endif
 424
 425     return true;
 426 #endif // __WXMICROWIN__/!__WXMICROWIN__
 427 }
 428
 429 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 430                                       const wxPoint& pos,
 431                                       const wxSize& size)
 432 {
 433     WXDWORD exflags;
 434     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 435
 436 #if !defined(__HANDHELDPC__) && ((defined(_WIN32_WCE) && _WIN32_WCE < 400) || \
 437     defined(__POCKETPC__) || \
 438     defined(__SMARTPHONE__))
 439     // Always expand to fit the screen in PocketPC or SmartPhone
 440     wxSize sz(wxDefaultSize);
 441     wxUnusedVar(size);
 442 #else // other (including normal desktop) Windows
 443     wxSize sz(size);
 444 #endif
 445
 446     bool result = MSWCreate(wxCanvasClassName, title, pos, sz, flags, exflags);
 447
 448 #ifdef __SMARTPHONE__
 449     // Work around title non-display glitch
 450     Show(false);
 451 #endif
 452     return result;
 453 }
 454
 455 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 456                                  wxWindowID id,
 457                                  const wxString& title,
 458                                  const wxPoint& pos,
 459                                  const wxSize& size,
 460                                  long style,
 461                                  const wxString& name)
 462 {
 463     bool ret wxDUMMY_INITIALIZE(false);
 464
 465     // init our fields
 466     Init();
 467
 468     wxSize sizeReal = size;
 469     if ( !sizeReal.IsFullySpecified() )
 470     {
 471         sizeReal.SetDefaults(GetDefaultSize());
 472     }
 473
 474     m_windowStyle = style;
 475
 476     SetName(name);
 477
 478     m_windowId = id == wxID_ANY ? NewControlId() : id;
 479
 480     wxTopLevelWindows.Append(this);
 481
 482     if ( parent )
 483         parent->AddChild(this);
 484
 485     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 486     {
 487         // we have different dialog templates to allows creation of dialogs
 488         // with & without captions under MSWindows, resizeable or not (but a
 489         // resizeable dialog always has caption - otherwise it would look too
 490         // strange)
 491
 492         // we need 3 additional WORDs for dialog menu, class and title (as we
 493         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 494         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 495         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 496         memset(dlgTemplate, 0, dlgsize);
 497
 498         // these values are arbitrary, they won't be used normally anyhow
 499         dlgTemplate->x  = 34;
 500         dlgTemplate->y  = 22;
 501         dlgTemplate->cx = 144;
 502         dlgTemplate->cy = 75;
 503
 504         // reuse the code in MSWGetStyle() but correct the results slightly for
 505         // the dialog
 506         dlgTemplate->style = MSWGetStyle(style, NULL);
 507
 508         // all dialogs are popups
 509         dlgTemplate->style |= WS_POPUP;
 510
 511         // force 3D-look if necessary, it looks impossibly ugly otherwise
 512         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 513             dlgTemplate->style |= DS_MODALFRAME;
 514
 515         ret = CreateDialog(dlgTemplate, title, pos, sizeReal);
 516         free(dlgTemplate);
 517     }
 518     else // !dialog
 519     {
 520         ret = CreateFrame(title, pos, sizeReal);
 521     }
 522
 523 #ifndef __WXWINCE__
 524     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 525     {
 526         EnableCloseButton(false);
 527     }
 528 #endif
 529
 530     // for some reason we need to manually send ourselves this message as
 531     // otherwise the mnemonics are always shown -- even if they're configured
 532     // to be hidden until "Alt" is pressed in the control panel
 533     //
 534     // this could indicate a bug somewhere else but for now this is the only
 535     // fix we have
 536     if ( ret )
 537     {
 538         ::SendMessage
 539         (
 540             GetHwnd(),
 541             WM_UPDATEUISTATE,
 542             MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL),
 543             0
 544         );
 545     }
 546
 547     // Native look is full screen window on Smartphones and Standard SDK.
 548     // TODO: check that we need this (if we're passing default values to ctor).
 549     // Also check that there really is a difference between PocketPC and Smartphone in this regard.
 550 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__WINCE_STANDARDSDK__))
 551     if ( style & wxMAXIMIZE )
 552     {
 553         this->Maximize();
 554     }
 555 #endif
 556
 557 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
 558     SetRightMenu(); // to nothing for initialization
 559 #endif
 560
 561     return ret;
 562 }
 563
 564 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 565 {
 566     // after destroying an owned window, Windows activates the next top level
 567     // window in Z order but it may be different from our owner (to reproduce
 568     // this simply Alt-TAB to another application and back before closing the
 569     // owned frame) whereas we always want to yield activation to our parent
 570     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 571     {
 572         wxWindow *parent = GetParent();
 573         if ( parent )
 574         {
 575             ::BringWindowToTop(GetHwndOf(parent));
 576         }
 577     }
 578 }
 579
 580 // ----------------------------------------------------------------------------
 581 // wxTopLevelWindowMSW showing
 582 // ----------------------------------------------------------------------------
 583
 584 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 585 {
 586     ::ShowWindow(GetHwnd(), nShowCmd);
 587
 588     m_iconized = nShowCmd == SW_MINIMIZE;
 589 }
 590
 591 bool wxTopLevelWindowMSW::Show(bool show)
 592 {
 593     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 594     if ( !wxWindowBase::Show(show) )
 595         return false;
 596
 597     int nShowCmd;
 598     if ( show )
 599     {
 600         if ( m_maximizeOnShow )
 601         {
 602             // show and maximize
 603             nShowCmd = SW_MAXIMIZE;
 604
 605             // This is necessary, or no window appears
 606 #if defined( __WINCE_STANDARDSDK__) || defined(__SMARTPHONE__)
 607             DoShowWindow(SW_SHOW);
 608 #endif
 609
 610             m_maximizeOnShow = false;
 611         }
 612         else // just show
 613         {
 614            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 615                nShowCmd = SW_SHOWNA;
 616            else
 617                nShowCmd = SW_SHOW;
 618         }
 619     }
 620     else // hide
 621     {
 622         nShowCmd = SW_HIDE;
 623     }
 624
 625     DoShowWindow(nShowCmd);
 626
 627 #if defined(__WXWINCE__) && (_WIN32_WCE >= 400 && !defined(__POCKETPC__) && !defined(__SMARTPHONE__))
 628     // Addornments have to be added when the frame is the correct size
 629     wxFrame* frame = wxDynamicCast(this, wxFrame);
 630     if (frame && frame->GetMenuBar())
 631         frame->GetMenuBar()->AddAdornments(GetWindowStyleFlag());
 632 #endif
 633
 634     if ( show )
 635     {
 636         ::BringWindowToTop(GetHwnd());
 637
 638         wxActivateEvent event(wxEVT_ACTIVATE, true, m_windowId);
 639         event.SetEventObject( this );
 640         GetEventHandler()->ProcessEvent(event);
 641     }
 642     else // hide
 643     {
 644         // Try to highlight the correct window (the parent)
 645         if ( GetParent() )
 646         {
 647             HWND hWndParent = GetHwndOf(GetParent());
 648             if (hWndParent)
 649                 ::BringWindowToTop(hWndParent);
 650         }
 651     }
 652
 653     return true;
 654 }
 655
 656 // ----------------------------------------------------------------------------
 657 // wxTopLevelWindowMSW maximize/minimize
 658 // ----------------------------------------------------------------------------
 659
 660 void wxTopLevelWindowMSW::Maximize(bool maximize)
 661 {
 662     if ( IsShown() )
 663     {
 664         // just maximize it directly
 665         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 666     }
 667     else // hidden
 668     {
 669         // we can't maximize the hidden frame because it shows it as well, so
 670         // just remember that we should do it later in this case
 671         m_maximizeOnShow = maximize;
 672     }
 673 }
 674
 675 bool wxTopLevelWindowMSW::IsMaximized() const
 676 {
 677 #ifdef __WXWINCE__
 678     return false;
 679 #else
 680     return ::IsZoomed(GetHwnd()) != 0;
 681 #endif
 682 }
 683
 684 void wxTopLevelWindowMSW::Iconize(bool iconize)
 685 {
 686     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 687 }
 688
 689 bool wxTopLevelWindowMSW::IsIconized() const
 690 {
 691 #ifdef __WXWINCE__
 692     return false;
 693 #else
 694     // also update the current state
 695     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 696
 697     return m_iconized;
 698 #endif
 699 }
 700
 701 void wxTopLevelWindowMSW::Restore()
 702 {
 703     DoShowWindow(SW_RESTORE);
 704 }
 705
 706 // ----------------------------------------------------------------------------
 707 // wxTopLevelWindowMSW fullscreen
 708 // ----------------------------------------------------------------------------
 709
 710 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 711 {
 712     if ( show == IsFullScreen() )
 713     {
 714         // nothing to do
 715         return true;
 716     }
 717
 718     m_fsIsShowing = show;
 719
 720     if ( show )
 721     {
 722         m_fsStyle = style;
 723
 724         // zap the frame borders
 725
 726         // save the 'normal' window style
 727         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 728
 729         // save the old position, width & height, maximize state
 730         m_fsOldSize = GetRect();
 731         m_fsIsMaximized = IsMaximized();
 732
 733         // decide which window style flags to turn off
 734         LONG newStyle = m_fsOldWindowStyle;
 735         LONG offFlags = 0;
 736
 737         if (style & wxFULLSCREEN_NOBORDER)
 738         {
 739             offFlags |= WS_BORDER;
 740 #ifndef __WXWINCE__
 741             offFlags |= WS_THICKFRAME;
 742 #endif
 743         }
 744         if (style & wxFULLSCREEN_NOCAPTION)
 745             offFlags |= WS_CAPTION | WS_SYSMENU;
 746
 747         newStyle &= ~offFlags;
 748
 749         // change our window style to be compatible with full-screen mode
 750         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 751
 752         wxRect rect;
 753 #if wxUSE_DISPLAY
 754         // resize to the size of the display containing us
 755         int dpy = wxDisplay::GetFromWindow(this);
 756         if ( dpy != wxNOT_FOUND )
 757         {
 758             rect = wxDisplay(dpy).GetGeometry();
 759         }
 760         else // fall back to the main desktop
 761 #else // wxUSE_DISPLAY
 762         {
 763             // resize to the size of the desktop
 764             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 765 #ifdef __WXWINCE__
 766             // FIXME: size of the bottom menu (toolbar)
 767             // should be taken in account
 768             rect.height += rect.y;
 769             rect.y       = 0;
 770 #endif
 771         }
 772 #endif // wxUSE_DISPLAY
 773
 774         SetSize(rect);
 775
 776         // now flush the window style cache and actually go full-screen
 777         long flags = SWP_FRAMECHANGED;
 778
 779         // showing the frame full screen should also show it if it's still
 780         // hidden
 781         if ( !IsShown() )
 782         {
 783             // don't call wxWindow version to avoid flicker from calling
 784             // ::ShowWindow() -- we're going to show the window at the correct
 785             // location directly below -- but do call the wxWindowBase version
 786             // to sync the internal m_isShown flag
 787             wxWindowBase::Show();
 788
 789             flags |= SWP_SHOWWINDOW;
 790         }
 791
 792         SetWindowPos(GetHwnd(), HWND_TOP,
 793                      rect.x, rect.y, rect.width, rect.height,
 794                      flags);
 795
 796 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 797         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 798 #endif
 799
 800         // finally send an event allowing the window to relayout itself &c
 801         wxSizeEvent event(rect.GetSize(), GetId());
 802         GetEventHandler()->ProcessEvent(event);
 803     }
 804     else // stop showing full screen
 805     {
 806 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 807         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 808 #endif
 809         Maximize(m_fsIsMaximized);
 810         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 811         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 812             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 813     }
 814
 815     return true;
 816 }
 817
 818 // ----------------------------------------------------------------------------
 819 // wxTopLevelWindowMSW misc
 820 // ----------------------------------------------------------------------------
 821
 822 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 823 {
 824     SetIcons( wxIconBundle( icon ) );
 825 }
 826
 827 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 828 {
 829     wxTopLevelWindowBase::SetIcons(icons);
 830
 831 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 832     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 833     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 834     {
 835         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 836                        (LPARAM)GetHiconOf(sml) );
 837     }
 838
 839     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 840     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 841     {
 842         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 843                        (LPARAM)GetHiconOf(big) );
 844     }
 845 #endif // __WIN95__
 846 }
 847
 848 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 849 {
 850 #if !defined(__WXMICROWIN__)
 851     // get system (a.k.a. window) menu
 852     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 853     if ( !hmenu )
 854     {
 855         // no system menu at all -- ok if we want to remove the close button
 856         // anyhow, but bad if we want to show it
 857         return !enable;
 858     }
 859
 860     // enabling/disabling the close item from it also automatically
 861     // disables/enables the close title bar button
 862     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 863                           MF_BYCOMMAND |
 864                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 865     {
 866         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 867
 868         return false;
 869     }
 870 #ifndef __WXWINCE__
 871     // update appearance immediately
 872     if ( !::DrawMenuBar(GetHwnd()) )
 873     {
 874         wxLogLastError(_T("DrawMenuBar"));
 875     }
 876 #endif
 877 #endif // !__WXMICROWIN__
 878
 879     return true;
 880 }
 881
 882 #ifndef __WXWINCE__
 883
 884 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 885 {
 886     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
 887                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 888
 889     // The empty region signifies that the shape should be removed from the
 890     // window.
 891     if ( region.IsEmpty() )
 892     {
 893         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 894         {
 895             wxLogLastError(_T("SetWindowRgn"));
 896             return false;
 897         }
 898         return true;
 899     }
 900
 901     // Windows takes ownership of the region, so
 902     // we'll have to make a copy of the region to give to it.
 903     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 904     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 905     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 906     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 907     delete[] (char*) rgnData;
 908
 909     // SetWindowRgn expects the region to be in coordinants
 910     // relative to the window, not the client area.  Figure
 911     // out the offset, if any.
 912     RECT rect;
 913     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 914     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 915     ::GetClientRect(GetHwnd(), &rect);
 916     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 917     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 918
 919     // Now call the shape API with the new region.
 920     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 921     {
 922         wxLogLastError(_T("SetWindowRgn"));
 923         return false;
 924     }
 925     return true;
 926 }
 927
 928 #endif // !__WXWINCE__
 929
 930 void wxTopLevelWindowMSW::RequestUserAttention(int flags)
 931 {
 932     // check if we can use FlashWindowEx(): unfortunately an explicit test for
 933     // FLASHW_STOP, for example, doesn't work because MSVC6 headers do #define
 934     // it but don't provide FlashWindowEx() declaration
 935 #if (WINVER >= 0x0500 && (defined FLASHW_STOP))
 936     // available in the headers, check if it is supported by the system
 937     typedef BOOL (WINAPI *FlashWindowEx_t)(FLASHWINFO *pfwi);
 938     FlashWindowEx_t s_pfnFlashWindowEx = NULL;
 939     if ( !s_pfnFlashWindowEx )
 940     {
 941         wxDynamicLibrary dllUser32(_T("user32.dll"));
 942         s_pfnFlashWindowEx = (FlashWindowEx_t)
 943                                 dllUser32.GetSymbol(_T("FlashWindowEx"));
 944
 945         // we can safely unload user32.dll here, it's goign to remain loaded as
 946         // long as the program is running anyhow
 947     }
 948
 949     if ( s_pfnFlashWindowEx )
 950     {
 951         WinStruct<FLASHWINFO> fwi;
 952         fwi.hwnd = GetHwnd();
 953         fwi.dwFlags = FLASHW_ALL;
 954         if ( flags & wxUSER_ATTENTION_INFO )
 955         {
 956             // just flash a few times
 957             fwi.uCount = 3;
 958         }
 959         else // wxUSER_ATTENTION_ERROR
 960         {
 961             // flash until the user notices it
 962             fwi.dwFlags |= FLASHW_TIMERNOFG;
 963         }
 964
 965         s_pfnFlashWindowEx(&fwi);
 966     }
 967     else // FlashWindowEx() not available
 968 #endif // FlashWindowEx() defined
 969     {
 970         wxUnusedVar(flags);
 971 #ifndef __WXWINCE__
 972         ::FlashWindow(GetHwnd(), TRUE);
 973 #endif // __WXWINCE__
 974     }
 975 }
 976
 977 // ----------------------------------------------------------------------------
 978 // wxTopLevelWindow event handling
 979 // ----------------------------------------------------------------------------
 980
 981 // Default activation behaviour - set the focus for the first child
 982 // subwindow found.
 983 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 984 {
 985     if ( event.GetActive() )
 986     {
 987         // restore focus to the child which was last focused unless we already
 988         // have it
 989         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 990
 991         wxWindow *winFocus = FindFocus();
 992         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
 993         {
 994             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 995                                                 : NULL;
 996             if ( !parent )
 997             {
 998                 parent = this;
 999             }
1000
1001             wxSetFocusToChild(parent, &m_winLastFocused);
1002         }
1003     }
1004     else // deactivating
1005     {
1006         // remember the last focused child if it is our child
1007         m_winLastFocused = FindFocus();
1008
1009         if ( m_winLastFocused )
1010         {
1011             // let it know that it doesn't have focus any more
1012             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
1013
1014             // and don't remember it if it's a child from some other frame
1015             if ( wxGetTopLevelParent(m_winLastFocused) != this )
1016             {
1017                 m_winLastFocused = NULL;
1018             }
1019         }
1020
1021         wxLogTrace(_T("focus"),
1022                    _T("wxTLW %08x deactivated, last focused: %08x."),
1023                    (int) m_hWnd,
1024                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
1025                                            : NULL));
1026
1027         event.Skip();
1028     }
1029 }
1030
1031 // the DialogProc for all wxWidgets dialogs
1032 LONG APIENTRY _EXPORT
1033 wxDlgProc(HWND hDlg,
1034           UINT message,
1035           WPARAM WXUNUSED(wParam),
1036           LPARAM WXUNUSED(lParam))
1037 {
1038     if ( message == WM_INITDIALOG )
1039     {
1040         // under CE, add a "Ok" button in the dialog title bar and make it full
1041         // screen
1042         //
1043         // TODO: find the window for this HWND, and take into account
1044         // wxMAXIMIZE and wxCLOSE_BOX. For now, assume both are present.
1045         //
1046         // Standard SDK doesn't have aygshell.dll: see
1047         // include/wx/msw/wince/libraries.h
1048 #if defined(__WXWINCE__) && !defined(__WINCE_STANDARDSDK__) && !defined(__HANDHELDPC__)
1049         SHINITDLGINFO shidi;
1050         shidi.dwMask = SHIDIM_FLAGS;
1051         shidi.dwFlags = SHIDIF_SIZEDLG // take account of the SIP or menubar
1052 #ifndef __SMARTPHONE__
1053                         | SHIDIF_DONEBUTTON
1054 #endif
1055                         ;
1056         shidi.hDlg = hDlg;
1057         SHInitDialog( &shidi );
1058 #else // no SHInitDialog()
1059         wxUnusedVar(hDlg);
1060 #endif
1061     }
1062
1063     // for almost all messages, returning FALSE means that we didn't process
1064     // the message
1065     //
1066     // for WM_INITDIALOG, returning TRUE tells system to set focus to
1067     // the first control in the dialog box, but as we set the focus
1068     // ourselves, we return FALSE for it as well
1069     return FALSE;
1070 }
1071
1072 // ============================================================================
1073 // wxTLWHiddenParentModule implementation
1074 // ============================================================================
1075
1076 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
1077
1078 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
1079
1080 bool wxTLWHiddenParentModule::OnInit()
1081 {
1082     ms_hwnd = NULL;
1083     ms_className = NULL;
1084
1085     return true;
1086 }
1087
1088 void wxTLWHiddenParentModule::OnExit()
1089 {
1090     if ( ms_hwnd )
1091     {
1092         if ( !::DestroyWindow(ms_hwnd) )
1093         {
1094             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
1095         }
1096
1097         ms_hwnd = NULL;
1098     }
1099
1100     if ( ms_className )
1101     {
1102         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
1103         {
1104             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
1105         }
1106
1107         ms_className = NULL;
1108     }
1109 }
1110
1111 /* static */
1112 HWND wxTLWHiddenParentModule::GetHWND()
1113 {
1114     if ( !ms_hwnd )
1115     {
1116         if ( !ms_className )
1117         {
1118             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1119
1120             WNDCLASS wndclass;
1121             wxZeroMemory(wndclass);
1122
1123             wndclass.lpfnWndProc   = DefWindowProc;
1124             wndclass.hInstance     = wxGetInstance();
1125             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1126
1127             if ( !::RegisterClass(&wndclass) )
1128             {
1129                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1130             }
1131             else
1132             {
1133                 ms_className = HIDDEN_PARENT_CLASS;
1134             }
1135         }
1136
1137         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1138                                  (HMENU)NULL, wxGetInstance(), NULL);
1139         if ( !ms_hwnd )
1140         {
1141             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1142         }
1143     }
1144
1145     return ms_hwnd;
1146 }
1147
1148