src/univ/topluniv.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        topluniv.cpp
   3 // Author:      Vaclav Slavik
   4 // Id:          $Id$
   5 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 // ============================================================================
  10 // declarations
  11 // ============================================================================
  12
  13 // ----------------------------------------------------------------------------
  14 // headers
  15 // ----------------------------------------------------------------------------
  16
  17 #ifdef __GNUG__
  18     #pragma implementation "univtoplevel.h"
  19 #endif
  20
  21 // For compilers that support precompilation, includes "wx.h".
  22 #include "wx/wxprec.h"
  23
  24 #ifdef __BORLANDC__
  25 #pragma hdrstop
  26 #endif
  27
  28 #include "wx/defs.h"
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/dcclient.h"
  32     #include "wx/settings.h"
  33 #endif
  34
  35 #include "wx/toplevel.h"
  36 #include "wx/univ/renderer.h"
  37 #include "wx/bitmap.h"
  38 #include "wx/image.h"
  39 #include "wx/cshelp.h"
  40
  41
  42 // ----------------------------------------------------------------------------
  43 // event tables
  44 // ----------------------------------------------------------------------------
  45
  46 BEGIN_EVENT_TABLE(wxTopLevelWindow, wxTopLevelWindowNative)
  47     WX_EVENT_TABLE_INPUT_CONSUMER(wxTopLevelWindow)
  48     EVT_NC_PAINT(wxTopLevelWindow::OnNcPaint)
  49 END_EVENT_TABLE()
  50
  51 WX_FORWARD_TO_INPUT_CONSUMER(wxTopLevelWindow)
  52
  53 // ============================================================================
  54 // implementation
  55 // ============================================================================
  56
  57 int wxTopLevelWindow::ms_drawDecorations = -1;
  58 int wxTopLevelWindow::ms_canIconize = -1;
  59
  60 void wxTopLevelWindow::Init()
  61 {
  62     m_isActive = FALSE;
  63     m_windowStyle = 0;
  64     m_pressedButton = 0;
  65 }
  66
  67 bool wxTopLevelWindow::Create(wxWindow *parent,
  68                               wxWindowID id,
  69                               const wxString& title,
  70                               const wxPoint& pos,
  71                               const wxSize& size,
  72                               long style,
  73                               const wxString &name)
  74 {
  75     // init them to avoid compiler warnings
  76     long styleOrig = 0,
  77          exstyleOrig = 0;
  78
  79     if ( ms_drawDecorations == -1 )
  80     {
  81         ms_drawDecorations =
  82             !wxSystemSettings::GetCapability(wxSYS_CAN_DRAW_FRAME_DECORATIONS)
  83             || wxGetEnv(wxT("WXDECOR"), NULL);
  84         // FIXME -- wxUniv should provide a way to force non-native decorations!
  85         //          $WXDECOR is just a hack in absence of better wxUniv solution
  86     }
  87
  88     if ( ms_canIconize == -1 )
  89     {
  90         ms_canIconize = wxSystemSettings::GetCapability(wxSYS_CAN_ICONIZE_FRAME);
  91     }
  92
  93     if ( ms_drawDecorations )
  94     {
  95         CreateInputHandler(wxINP_HANDLER_TOPLEVEL);
  96
  97         styleOrig = style;
  98         exstyleOrig = GetExtraStyle();
  99         style &= ~(wxCAPTION | wxMINIMIZE_BOX | wxMAXIMIZE_BOX |
 100                    wxSYSTEM_MENU | wxRESIZE_BORDER | wxFRAME_TOOL_WINDOW |
 101                    wxTHICK_FRAME);
 102         style = wxSIMPLE_BORDER;
 103         SetExtraStyle(exstyleOrig &
 104                       ~(wxFRAME_EX_CONTEXTHELP | wxDIALOG_EX_CONTEXTHELP));
 105     }
 106
 107     if ( !wxTopLevelWindowNative::Create(parent, id, title, pos,
 108                                          size, style, name) )
 109         return FALSE;
 110
 111     if ( ms_drawDecorations )
 112     {
 113         m_windowStyle = styleOrig;
 114         m_exStyle = exstyleOrig;
 115     }
 116
 117     return TRUE;
 118 }
 119
 120 bool wxTopLevelWindow::ShowFullScreen(bool show, long style)
 121 {
 122     if ( show == IsFullScreen() ) return FALSE;
 123
 124     if ( ms_drawDecorations )
 125     {
 126         if ( show )
 127         {
 128             m_fsSavedStyle = m_windowStyle;
 129             if ( style & wxFULLSCREEN_NOBORDER )
 130                 m_windowStyle |= wxSIMPLE_BORDER;
 131             if ( style & wxFULLSCREEN_NOCAPTION )
 132                 m_windowStyle &= ~wxCAPTION;
 133         }
 134         else
 135         {
 136             m_windowStyle = m_fsSavedStyle;
 137         }
 138     }
 139
 140     return wxTopLevelWindowNative::ShowFullScreen(show, style);
 141 }
 142
 143 long wxTopLevelWindow::GetDecorationsStyle() const
 144 {
 145     long style = 0;
 146
 147     if ( m_windowStyle & wxCAPTION )
 148     {
 149         style |= wxTOPLEVEL_TITLEBAR | wxTOPLEVEL_BUTTON_CLOSE;
 150         if ( (m_windowStyle & wxMINIMIZE_BOX) && ms_canIconize )
 151             style |= wxTOPLEVEL_BUTTON_ICONIZE;
 152         if ( m_windowStyle & wxMAXIMIZE_BOX )
 153         {
 154             if ( IsMaximized() )
 155                 style |= wxTOPLEVEL_BUTTON_RESTORE;
 156             else
 157                 style |= wxTOPLEVEL_BUTTON_MAXIMIZE;
 158         }
 159 #if wxUSE_HELP
 160         if ( m_exStyle & (wxFRAME_EX_CONTEXTHELP | wxDIALOG_EX_CONTEXTHELP))
 161             style |= wxTOPLEVEL_BUTTON_HELP;
 162 #endif
 163     }
 164     if ( (m_windowStyle & (wxSIMPLE_BORDER | wxNO_BORDER)) == 0 )
 165         style |= wxTOPLEVEL_BORDER;
 166     if ( m_windowStyle & (wxRESIZE_BORDER | wxTHICK_FRAME) )
 167         style |= wxTOPLEVEL_RESIZEABLE;
 168
 169     if ( IsMaximized() )
 170         style |= wxTOPLEVEL_MAXIMIZED;
 171     if ( GetIcon().Ok() )
 172         style |= wxTOPLEVEL_ICON;
 173     if ( m_isActive )
 174         style |= wxTOPLEVEL_ACTIVE;
 175
 176     return style;
 177 }
 178
 179 void wxTopLevelWindow::RefreshTitleBar()
 180 {
 181     wxNcPaintEvent event(GetId());
 182     event.SetEventObject(this);
 183     GetEventHandler()->ProcessEvent(event);
 184 }
 185
 186 // ----------------------------------------------------------------------------
 187 // client area handling
 188 // ----------------------------------------------------------------------------
 189
 190 wxPoint wxTopLevelWindow::GetClientAreaOrigin() const
 191 {
 192     if ( ms_drawDecorations )
 193     {
 194         int w, h;
 195         wxTopLevelWindowNative::DoGetClientSize(&w, &h);
 196         wxRect rect = wxRect(wxTopLevelWindowNative::GetClientAreaOrigin(),
 197                              wxSize(w, h));
 198         rect = m_renderer->GetFrameClientArea(rect,
 199                                               GetDecorationsStyle());
 200         return rect.GetPosition();
 201     }
 202     else
 203     {
 204         return wxTopLevelWindowNative::GetClientAreaOrigin();
 205     }
 206 }
 207
 208 void wxTopLevelWindow::DoGetClientSize(int *width, int *height) const
 209 {
 210     if ( ms_drawDecorations )
 211     {
 212         int w, h;
 213         wxTopLevelWindowNative::DoGetClientSize(&w, &h);
 214         wxRect rect = wxRect(wxTopLevelWindowNative::GetClientAreaOrigin(),
 215                              wxSize(w, h));
 216         rect = m_renderer->GetFrameClientArea(rect,
 217                                               GetDecorationsStyle());
 218         if ( width )
 219             *width = rect.width;
 220         if ( height )
 221             *height = rect.height;
 222     }
 223     else
 224         wxTopLevelWindowNative::DoGetClientSize(width, height);
 225 }
 226
 227 void wxTopLevelWindow::DoSetClientSize(int width, int height)
 228 {
 229     if ( ms_drawDecorations )
 230     {
 231         wxSize size = m_renderer->GetFrameTotalSize(wxSize(width, height),
 232                                                GetDecorationsStyle());
 233         wxTopLevelWindowNative::DoSetClientSize(size.x, size.y);
 234     }
 235     else
 236         wxTopLevelWindowNative::DoSetClientSize(width, height);
 237 }
 238
 239 void wxTopLevelWindow::OnNcPaint(wxPaintEvent& event)
 240 {
 241     if ( !ms_drawDecorations || !m_renderer )
 242         event.Skip();
 243     else
 244     {
 245         // get the window rect
 246         wxRect rect;
 247         wxSize size = GetSize();
 248         rect.x =
 249         rect.y = 0;
 250         rect.width = size.x;
 251         rect.height = size.y;
 252
 253         wxWindowDC dc(this);
 254         m_renderer->DrawFrameTitleBar(dc, rect,
 255                                       GetTitle(), m_titlebarIcon,
 256                                       GetDecorationsStyle(),
 257                                       m_pressedButton,
 258                                       wxCONTROL_PRESSED);
 259     }
 260 }
 261
 262 long wxTopLevelWindow::HitTest(const wxPoint& pt) const
 263 {
 264     int w, h;
 265     wxTopLevelWindowNative::DoGetClientSize(&w, &h);
 266     wxRect rect(wxTopLevelWindowNative::GetClientAreaOrigin(), wxSize(w, h));
 267
 268     return m_renderer->HitTestFrame(rect, pt+GetClientAreaOrigin(), GetDecorationsStyle());
 269 }
 270
 271 // ----------------------------------------------------------------------------
 272 // icons
 273 // ----------------------------------------------------------------------------
 274
 275 void wxTopLevelWindow::SetIcon(const wxIcon& icon)
 276 {
 277     wxTopLevelWindowNative::SetIcon(icon);
 278
 279     if ( ms_drawDecorations && m_renderer )
 280     {
 281         wxSize size = m_renderer->GetFrameIconSize();
 282
 283         if ( !icon.Ok() || size.x == -1  )
 284             m_titlebarIcon = icon;
 285         else
 286         {
 287             wxBitmap bmp1;
 288             bmp1.CopyFromIcon(icon);
 289             if ( !bmp1.Ok() )
 290                 m_titlebarIcon = wxNullIcon;
 291             else if ( bmp1.GetWidth() == size.x && bmp1.GetHeight() == size.y )
 292                 m_titlebarIcon = icon;
 293             else
 294             {
 295                 wxImage img = bmp1.ConvertToImage();
 296                 img.Rescale(size.x, size.y);
 297                 m_titlebarIcon.CopyFromBitmap(wxBitmap(img));
 298             }
 299         }
 300     }
 301 }
 302
 303 // ----------------------------------------------------------------------------
 304 // actions
 305 // ----------------------------------------------------------------------------
 306
 307 void wxTopLevelWindow::ClickTitleBarButton(long button)
 308 {
 309     switch ( button )
 310     {
 311         case wxTOPLEVEL_BUTTON_CLOSE:
 312             Close();
 313             break;
 314
 315         case wxTOPLEVEL_BUTTON_ICONIZE:
 316             Iconize();
 317             break;
 318
 319         case wxTOPLEVEL_BUTTON_MAXIMIZE:
 320             Maximize();
 321             break;
 322
 323         case wxTOPLEVEL_BUTTON_RESTORE:
 324             Restore();
 325             break;
 326
 327         case wxTOPLEVEL_BUTTON_HELP:
 328 #if wxUSE_HELP
 329             {
 330             wxContextHelp contextHelp(this);
 331             }
 332 #endif
 333             break;
 334
 335         default:
 336             wxFAIL_MSG(wxT("incorrect button specification"));
 337     }
 338 }
 339
 340 bool wxTopLevelWindow::PerformAction(const wxControlAction& action,
 341                                      long numArg,
 342                                      const wxString& strArg)
 343 {
 344     bool isActive = numArg != 0;
 345
 346     if ( action == wxACTION_TOPLEVEL_ACTIVATE )
 347     {
 348         if ( m_isActive != isActive )
 349         {
 350             m_isActive = isActive;
 351             RefreshTitleBar();
 352         }
 353         return TRUE;
 354     }
 355
 356     else if ( action == wxACTION_TOPLEVEL_BUTTON_PRESS )
 357     {
 358         m_pressedButton = numArg;
 359         RefreshTitleBar();
 360         return TRUE;
 361     }
 362
 363     else if ( action == wxACTION_TOPLEVEL_BUTTON_RELEASE )
 364     {
 365         m_pressedButton = 0;
 366         RefreshTitleBar();
 367         return TRUE;
 368     }
 369
 370     else if ( action == wxACTION_TOPLEVEL_BUTTON_CLICK )
 371     {
 372         m_pressedButton = 0;
 373         RefreshTitleBar();
 374         ClickTitleBarButton(numArg);
 375         return TRUE;
 376     }
 377
 378     else if ( action == wxACTION_TOPLEVEL_MOVE )
 379     {
 380         InteractiveMove(wxINTERACTIVE_MOVE);
 381         return TRUE;
 382     }
 383
 384     else if ( action == wxACTION_TOPLEVEL_RESIZE )
 385     {
 386         int flags = wxINTERACTIVE_RESIZE;
 387         if ( numArg & wxHT_TOPLEVEL_BORDER_N )
 388             flags |= wxINTERACTIVE_RESIZE_N;
 389         if ( numArg & wxHT_TOPLEVEL_BORDER_S )
 390             flags |= wxINTERACTIVE_RESIZE_S;
 391         if ( numArg & wxHT_TOPLEVEL_BORDER_W )
 392             flags |= wxINTERACTIVE_RESIZE_W;
 393         if ( numArg & wxHT_TOPLEVEL_BORDER_E )
 394             flags |= wxINTERACTIVE_RESIZE_E;
 395         InteractiveMove(flags);
 396         return TRUE;
 397     }
 398
 399     else
 400         return FALSE;
 401 }
 402
 403
 404 // ============================================================================
 405 // wxStdFrameInputHandler: handles focus, resizing and titlebar buttons clicks
 406 // ============================================================================
 407
 408 wxStdFrameInputHandler::wxStdFrameInputHandler(wxInputHandler *inphand)
 409             : wxStdInputHandler(inphand)
 410 {
 411     m_winCapture = NULL;
 412     m_winHitTest = 0;
 413     m_winPressed = 0;
 414     m_borderCursorOn = FALSE;
 415 }
 416
 417 bool wxStdFrameInputHandler::HandleMouse(wxInputConsumer *consumer,
 418                                          const wxMouseEvent& event)
 419 {
 420     // the button has 2 states: pressed and normal with the following
 421     // transitions between them:
 422     //
 423     //      normal -> left down -> capture mouse and go to pressed state
 424     //      pressed -> left up inside -> generate click -> go to normal
 425     //                         outside ------------------>
 426     //
 427     // the other mouse buttons are ignored
 428     if ( event.Button(1) )
 429     {
 430         if ( event.ButtonDown(1) )
 431         {
 432             wxTopLevelWindow *w = wxStaticCast(consumer->GetInputWindow(), wxTopLevelWindow);
 433             long hit = w->HitTest(event.GetPosition());
 434
 435             if ( hit & wxHT_TOPLEVEL_ANY_BUTTON )
 436             {
 437                 m_winCapture = w;
 438                 m_winCapture->CaptureMouse();
 439                 m_winHitTest = hit;
 440                 m_winPressed = hit;
 441                 consumer->PerformAction(wxACTION_TOPLEVEL_BUTTON_PRESS, m_winPressed);
 442                 return TRUE;
 443             }
 444             else if ( hit & wxHT_TOPLEVEL_TITLEBAR )
 445             {
 446                 consumer->PerformAction(wxACTION_TOPLEVEL_MOVE);
 447                 return TRUE;
 448             }
 449             else if ( (consumer->GetInputWindow()->GetWindowStyle() & wxRESIZE_BORDER)
 450                       && (hit & wxHT_TOPLEVEL_ANY_BORDER) )
 451             {
 452                 consumer->PerformAction(wxACTION_TOPLEVEL_RESIZE, hit);
 453                 return TRUE;
 454             }
 455         }
 456
 457         else // up
 458         {
 459             if ( m_winCapture )
 460             {
 461                 m_winCapture->ReleaseMouse();
 462                 m_winCapture = NULL;
 463
 464                 if ( m_winHitTest == m_winPressed )
 465                 {
 466                     consumer->PerformAction(wxACTION_TOPLEVEL_BUTTON_CLICK, m_winPressed);
 467                     return TRUE;
 468                 }
 469             }
 470             //else: the mouse was released outside the window, this doesn't
 471             //      count as a click
 472         }
 473     }
 474
 475     return wxStdInputHandler::HandleMouse(consumer, event);
 476 }
 477
 478 bool wxStdFrameInputHandler::HandleMouseMove(wxInputConsumer *consumer,
 479                                              const wxMouseEvent& event)
 480 {
 481     if ( event.GetEventObject() == m_winCapture )
 482     {
 483         long hit = m_winCapture->HitTest(event.GetPosition());
 484
 485         if ( hit != m_winHitTest )
 486         {
 487             if ( hit != m_winPressed )
 488                 consumer->PerformAction(wxACTION_TOPLEVEL_BUTTON_RELEASE, m_winPressed);
 489             else
 490                 consumer->PerformAction(wxACTION_TOPLEVEL_BUTTON_PRESS, m_winPressed);
 491
 492             m_winHitTest = hit;
 493             return TRUE;
 494         }
 495     }
 496     else if ( consumer->GetInputWindow()->GetWindowStyle() & wxRESIZE_BORDER )
 497     {
 498         wxTopLevelWindow *win = wxStaticCast(consumer->GetInputWindow(),
 499                                              wxTopLevelWindow);
 500         long hit = win->HitTest(event.GetPosition());
 501
 502         if ( hit != m_winHitTest )
 503         {
 504             m_winHitTest = hit;
 505
 506             if ( m_borderCursorOn )
 507             {
 508                 m_borderCursorOn = FALSE;
 509                 win->SetCursor(m_origCursor);
 510             }
 511
 512             if ( hit & wxHT_TOPLEVEL_ANY_BORDER )
 513             {
 514                 m_borderCursorOn = TRUE;
 515                 wxCursor cur;
 516
 517                 switch (hit)
 518                 {
 519                     case wxHT_TOPLEVEL_BORDER_N:
 520                     case wxHT_TOPLEVEL_BORDER_S:
 521                         cur = wxCursor(wxCURSOR_SIZENS);
 522                         break;
 523                     case wxHT_TOPLEVEL_BORDER_W:
 524                     case wxHT_TOPLEVEL_BORDER_E:
 525                         cur = wxCursor(wxCURSOR_SIZEWE);
 526                         break;
 527                     case wxHT_TOPLEVEL_BORDER_NE:
 528                     case wxHT_TOPLEVEL_BORDER_SW:
 529                         cur = wxCursor(wxCURSOR_SIZENESW);
 530                         break;
 531                     case wxHT_TOPLEVEL_BORDER_NW:
 532                     case wxHT_TOPLEVEL_BORDER_SE:
 533                         cur = wxCursor(wxCURSOR_SIZENWSE);
 534                         break;
 535                     default:
 536                         m_borderCursorOn = FALSE;
 537                         break;
 538                 }
 539                 if ( m_borderCursorOn )
 540                 {
 541                     m_origCursor = win->GetCursor();
 542                     win->SetCursor(cur);
 543                 }
 544             }
 545         }
 546     }
 547
 548     return wxStdInputHandler::HandleMouseMove(consumer, event);
 549 }
 550
 551 bool wxStdFrameInputHandler::HandleActivation(wxInputConsumer *consumer,
 552                                               bool activated)
 553 {
 554     if ( m_borderCursorOn )
 555     {
 556         consumer->GetInputWindow()->SetCursor(m_origCursor);
 557         m_borderCursorOn = FALSE;
 558     }
 559     consumer->PerformAction(wxACTION_TOPLEVEL_ACTIVATE, activated);
 560     return FALSE;
 561 }