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