contrib/src/stc/ScintillaWX.cpp

   1 ////////////////////////////////////////////////////////////////////////////
   2 // Name:        ScintillaWX.cxx
   3 // Purpose:     A wxWidgets implementation of Scintilla.  A class derived
   4 //              from ScintillaBase that uses the "wx platform" defined in
   5 //              PlatformWX.cxx  This class is one end of a bridge between
   6 //              the wx world and the Scintilla world.  It needs a peer
   7 //              object of type wxStyledTextCtrl to function.
   8 //
   9 // Author:      Robin Dunn
  10 //
  11 // Created:     13-Jan-2000
  12 // RCS-ID:      $Id$
  13 // Copyright:   (c) 2000 by Total Control Software
  14 // Licence:     wxWindows license
  15 /////////////////////////////////////////////////////////////////////////////
  16
  17
  18 #include "ScintillaWX.h"
  19 #include "ExternalLexer.h"
  20 #include "wx/stc/stc.h"
  21 #include "PlatWX.h"
  22 #include <wx/textbuf.h>
  23
  24 //----------------------------------------------------------------------
  25 // Helper classes
  26
  27 class wxSTCTimer : public wxTimer {
  28 public:
  29     wxSTCTimer(ScintillaWX* swx) {
  30         this->swx = swx;
  31     }
  32
  33     void Notify() {
  34         swx->DoTick();
  35     }
  36
  37 private:
  38     ScintillaWX* swx;
  39 };
  40
  41
  42 #if wxUSE_DRAG_AND_DROP
  43 bool wxSTCDropTarget::OnDropText(wxCoord x, wxCoord y, const wxString& data) {
  44     return swx->DoDropText(x, y, data);
  45 }
  46
  47 wxDragResult  wxSTCDropTarget::OnEnter(wxCoord x, wxCoord y, wxDragResult def) {
  48     return swx->DoDragEnter(x, y, def);
  49 }
  50
  51 wxDragResult  wxSTCDropTarget::OnDragOver(wxCoord x, wxCoord y, wxDragResult def) {
  52     return swx->DoDragOver(x, y, def);
  53 }
  54
  55 void  wxSTCDropTarget::OnLeave() {
  56     swx->DoDragLeave();
  57 }
  58 #endif
  59
  60
  61 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
  62 #include <wx/popupwin.h>
  63 #define wxSTCCallTipBase wxPopupWindow
  64 #define param2  wxBORDER_NONE  // popup's 2nd param is flags
  65 #else
  66 #define wxSTCCallTipBase wxWindow
  67 #define param2 -1 // wxWindow's 2nd param is ID
  68 #endif
  69
  70 #include <wx/dcbuffer.h>
  71
  72 class wxSTCCallTip : public wxSTCCallTipBase {
  73 public:
  74     wxSTCCallTip(wxWindow* parent, CallTip* ct, ScintillaWX* swx)
  75         : wxSTCCallTipBase(parent, param2),
  76           m_ct(ct), m_swx(swx)
  77         {
  78         }
  79
  80     ~wxSTCCallTip() {
  81 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP && defined(__WXGTK__)
  82         wxRect rect = GetRect();
  83         GetParent()->ScreenToClient(&rect.x, &rect.y);
  84         GetParent()->Refresh(false, &rect);
  85 #endif
  86     }
  87
  88     bool AcceptsFocus() const { return FALSE; }
  89
  90     void OnPaint(wxPaintEvent& WXUNUSED(evt)) {
  91         wxBufferedPaintDC dc(this);
  92         Surface* surfaceWindow = Surface::Allocate();
  93         surfaceWindow->Init(&dc, m_ct->wDraw.GetID());
  94         m_ct->PaintCT(surfaceWindow);
  95         surfaceWindow->Release();
  96         delete surfaceWindow;
  97     }
  98
  99     void OnFocus(wxFocusEvent& event) {
 100         GetParent()->SetFocus();
 101         event.Skip();
 102     }
 103
 104     void OnLeftDown(wxMouseEvent& event) {
 105         wxPoint pt = event.GetPosition();
 106         Point p(pt.x, pt.y);
 107         m_ct->MouseClick(p);
 108         m_swx->CallTipClick();
 109     }
 110
 111 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
 112     virtual void DoSetSize(int x, int y,
 113                            int width, int height,
 114                            int sizeFlags = wxSIZE_AUTO) {
 115         if (x != -1)
 116             GetParent()->ClientToScreen(&x, NULL);
 117         if (y != -1)
 118             GetParent()->ClientToScreen(NULL, &y);
 119         wxSTCCallTipBase::DoSetSize(x, y, width, height, sizeFlags);
 120     }
 121 #endif
 122
 123 private:
 124     CallTip*      m_ct;
 125     ScintillaWX*  m_swx;
 126     DECLARE_EVENT_TABLE()
 127 };
 128
 129 BEGIN_EVENT_TABLE(wxSTCCallTip, wxSTCCallTipBase)
 130     EVT_PAINT(wxSTCCallTip::OnPaint)
 131     EVT_SET_FOCUS(wxSTCCallTip::OnFocus)
 132     EVT_LEFT_DOWN(wxSTCCallTip::OnLeftDown)
 133 END_EVENT_TABLE()
 134
 135
 136 //----------------------------------------------------------------------
 137 // Constructor/Destructor
 138
 139
 140 ScintillaWX::ScintillaWX(wxStyledTextCtrl* win) {
 141     capturedMouse = false;
 142     focusEvent = false;
 143     wMain = win;
 144     stc   = win;
 145     wheelRotation = 0;
 146     Initialise();
 147 }
 148
 149
 150 ScintillaWX::~ScintillaWX() {
 151     Finalise();
 152 }
 153
 154 //----------------------------------------------------------------------
 155 // base class virtuals
 156
 157
 158 void ScintillaWX::Initialise() {
 159     //ScintillaBase::Initialise();
 160 #if wxUSE_DRAG_AND_DROP
 161     dropTarget = new wxSTCDropTarget;
 162     dropTarget->SetScintilla(this);
 163     stc->SetDropTarget(dropTarget);
 164 #endif
 165 #ifdef __WXMAC__
 166     vs.extraFontFlag = false;  // UseAntiAliasing
 167 #else
 168     vs.extraFontFlag = true;   // UseAntiAliasing
 169 #endif
 170 }
 171
 172
 173 void ScintillaWX::Finalise() {
 174     ScintillaBase::Finalise();
 175     SetTicking(false);
 176     SetIdle(false);
 177 }
 178
 179
 180 void ScintillaWX::StartDrag() {
 181 #if wxUSE_DRAG_AND_DROP
 182     wxString dragText = stc2wx(drag.s, drag.len);
 183
 184     // Send an event to allow the drag text to be changed
 185     wxStyledTextEvent evt(wxEVT_STC_START_DRAG, stc->GetId());
 186     evt.SetEventObject(stc);
 187     evt.SetDragText(dragText);
 188     evt.SetDragAllowMove(TRUE);
 189     evt.SetPosition(wxMin(stc->GetSelectionStart(),
 190                           stc->GetSelectionEnd()));
 191     stc->GetEventHandler()->ProcessEvent(evt);
 192     dragText = evt.GetDragText();
 193
 194     if (dragText.Length()) {
 195         wxDropSource        source(stc);
 196         wxTextDataObject    data(dragText);
 197         wxDragResult        result;
 198
 199         source.SetData(data);
 200         dropWentOutside = TRUE;
 201         result = source.DoDragDrop(evt.GetDragAllowMove());
 202         if (result == wxDragMove && dropWentOutside)
 203             ClearSelection();
 204         inDragDrop = FALSE;
 205         SetDragPosition(invalidPosition);
 206     }
 207 #endif
 208 }
 209
 210
 211 bool ScintillaWX::SetIdle(bool on) {
 212     if (idler.state != on) {
 213         // connect or disconnect the EVT_IDLE handler
 214         if (on)
 215             stc->Connect(-1, wxEVT_IDLE,
 216                          (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 217         else
 218             stc->Disconnect(-1, wxEVT_IDLE,
 219                             (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 220         idler.state = on;
 221     }
 222     return idler.state;
 223 }
 224
 225
 226 void ScintillaWX::SetTicking(bool on) {
 227     wxSTCTimer* steTimer;
 228     if (timer.ticking != on) {
 229         timer.ticking = on;
 230         if (timer.ticking) {
 231             steTimer = new wxSTCTimer(this);
 232             steTimer->Start(timer.tickSize);
 233             timer.tickerID = steTimer;
 234         } else {
 235             steTimer = (wxSTCTimer*)timer.tickerID;
 236             steTimer->Stop();
 237             delete steTimer;
 238             timer.tickerID = 0;
 239         }
 240     }
 241     timer.ticksToWait = caret.period;
 242 }
 243
 244
 245 void ScintillaWX::SetMouseCapture(bool on) {
 246     if (mouseDownCaptures) {
 247         if (on && !capturedMouse)
 248             stc->CaptureMouse();
 249         else if (!on && capturedMouse && stc->HasCapture())
 250             stc->ReleaseMouse();
 251         capturedMouse = on;
 252     }
 253 }
 254
 255
 256 bool ScintillaWX::HaveMouseCapture() {
 257     return capturedMouse;
 258 }
 259
 260
 261 void ScintillaWX::ScrollText(int linesToMove) {
 262     int dy = vs.lineHeight * (linesToMove);
 263     stc->ScrollWindow(0, dy);
 264     stc->Update();
 265 }
 266
 267 void ScintillaWX::SetVerticalScrollPos() {
 268     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 269         stc->SetScrollPos(wxVERTICAL, topLine);
 270     }
 271     else { // otherwise use the one that's been given to us
 272         stc->m_vScrollBar->SetThumbPosition(topLine);
 273     }
 274 }
 275
 276 void ScintillaWX::SetHorizontalScrollPos() {
 277     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 278         stc->SetScrollPos(wxHORIZONTAL, xOffset);
 279     }
 280     else { // otherwise use the one that's been given to us
 281         stc->m_hScrollBar->SetThumbPosition(xOffset);
 282     }
 283 }
 284
 285
 286 const int H_SCROLL_STEP = 20;
 287
 288 bool ScintillaWX::ModifyScrollBars(int nMax, int nPage) {
 289     bool modified = false;
 290
 291     int vertEnd = nMax;
 292     if (!verticalScrollBarVisible)
 293         vertEnd = 0;
 294
 295     // Check the vertical scrollbar
 296     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 297         int  sbMax    = stc->GetScrollRange(wxVERTICAL);
 298         int  sbThumb  = stc->GetScrollThumb(wxVERTICAL);
 299         int  sbPos    = stc->GetScrollPos(wxVERTICAL);
 300         if (sbMax != vertEnd || sbThumb != nPage) {
 301             stc->SetScrollbar(wxVERTICAL, sbPos, nPage, vertEnd+1);
 302             modified = true;
 303         }
 304     }
 305     else { // otherwise use the one that's been given to us
 306         int  sbMax    = stc->m_vScrollBar->GetRange();
 307         int  sbPage   = stc->m_vScrollBar->GetPageSize();
 308         int  sbPos    = stc->m_vScrollBar->GetThumbPosition();
 309         if (sbMax != vertEnd || sbPage != nPage) {
 310             stc->m_vScrollBar->SetScrollbar(sbPos, nPage, vertEnd+1, nPage);
 311             modified = true;
 312         }
 313     }
 314
 315
 316     // Check the horizontal scrollbar
 317     PRectangle rcText = GetTextRectangle();
 318     int horizEnd = scrollWidth;
 319     if (horizEnd < 0)
 320         horizEnd = 0;
 321     if (!horizontalScrollBarVisible || (wrapState != eWrapNone))
 322         horizEnd = 0;
 323     int pageWidth = rcText.Width();
 324
 325     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 326         int sbMax    = stc->GetScrollRange(wxHORIZONTAL);
 327         int sbThumb  = stc->GetScrollThumb(wxHORIZONTAL);
 328         int sbPos    = stc->GetScrollPos(wxHORIZONTAL);
 329         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 330             stc->SetScrollbar(wxHORIZONTAL, sbPos, pageWidth, horizEnd);
 331             modified = true;
 332             if (scrollWidth < pageWidth) {
 333                 HorizontalScrollTo(0);
 334             }
 335         }
 336     }
 337     else { // otherwise use the one that's been given to us
 338         int sbMax    = stc->m_hScrollBar->GetRange();
 339         int sbThumb  = stc->m_hScrollBar->GetPageSize();
 340         int sbPos    = stc->m_hScrollBar->GetThumbPosition();
 341         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 342             stc->m_hScrollBar->SetScrollbar(sbPos, pageWidth, horizEnd, pageWidth);
 343             modified = true;
 344             if (scrollWidth < pageWidth) {
 345                 HorizontalScrollTo(0);
 346             }
 347         }
 348     }
 349
 350     return modified;
 351 }
 352
 353
 354 void ScintillaWX::NotifyChange() {
 355     stc->NotifyChange();
 356 }
 357
 358
 359 void ScintillaWX::NotifyParent(SCNotification scn) {
 360     stc->NotifyParent(&scn);
 361 }
 362
 363
 364 // This method is overloaded from ScintillaBase in order to prevent the
 365 // AutoComplete window from being destroyed when it gets the focus.  There is
 366 // a side effect that the AutoComp will also not be destroyed when switching
 367 // to another window, but I think that is okay.
 368 void ScintillaWX::CancelModes() {
 369     if (! focusEvent)
 370         AutoCompleteCancel();
 371     ct.CallTipCancel();
 372     Editor::CancelModes();
 373 }
 374
 375
 376
 377 void ScintillaWX::Copy() {
 378     if (currentPos != anchor) {
 379         SelectionText st;
 380         CopySelectionRange(&st);
 381         CopyToClipboard(st);
 382     }
 383 }
 384
 385
 386 void ScintillaWX::Paste() {
 387     pdoc->BeginUndoAction();
 388     ClearSelection();
 389
 390     wxTextDataObject data;
 391     bool gotData = FALSE;
 392
 393     if (wxTheClipboard->Open()) {
 394         wxTheClipboard->UsePrimarySelection(FALSE);
 395         gotData = wxTheClipboard->GetData(data);
 396         wxTheClipboard->Close();
 397     }
 398     if (gotData) {
 399         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(data.GetText());
 400         int        len = strlen(buf);
 401         pdoc->InsertString(currentPos, buf, len);
 402         SetEmptySelection(currentPos + len);
 403     }
 404
 405     pdoc->EndUndoAction();
 406     NotifyChange();
 407     Redraw();
 408 }
 409
 410
 411 void ScintillaWX::CopyToClipboard(const SelectionText& st) {
 412     if (wxTheClipboard->Open()) {
 413         wxTheClipboard->UsePrimarySelection(FALSE);
 414         wxString text = wxTextBuffer::Translate(stc2wx(st.s, st.len));
 415         wxTheClipboard->SetData(new wxTextDataObject(text));
 416         wxTheClipboard->Close();
 417     }
 418 }
 419
 420
 421 bool ScintillaWX::CanPaste() {
 422     bool canPaste = FALSE;
 423     bool didOpen;
 424
 425     if (Editor::CanPaste()) {
 426         didOpen = !wxTheClipboard->IsOpened();
 427         if ( didOpen )
 428             wxTheClipboard->Open();
 429
 430         if (wxTheClipboard->IsOpened()) {
 431             wxTheClipboard->UsePrimarySelection(FALSE);
 432             canPaste = wxTheClipboard->IsSupported(wxUSE_UNICODE ? wxDF_UNICODETEXT : wxDF_TEXT);
 433             if (didOpen)
 434                 wxTheClipboard->Close();
 435         }
 436     }
 437     return canPaste;
 438 }
 439
 440 void ScintillaWX::CreateCallTipWindow(PRectangle) {
 441     if (! ct.wCallTip.Created() ) {
 442         ct.wCallTip = new wxSTCCallTip(stc, &ct, this);
 443         ct.wDraw = ct.wCallTip;
 444     }
 445 }
 446
 447
 448 void ScintillaWX::AddToPopUp(const char *label, int cmd, bool enabled) {
 449     if (!label[0])
 450         ((wxMenu*)popup.GetID())->AppendSeparator();
 451     else
 452         ((wxMenu*)popup.GetID())->Append(cmd, wxGetTranslation(stc2wx(label)));
 453
 454     if (!enabled)
 455         ((wxMenu*)popup.GetID())->Enable(cmd, enabled);
 456 }
 457
 458
 459 // This is called by the Editor base class whenever something is selected
 460 void ScintillaWX::ClaimSelection() {
 461 #if 0
 462     // Until wxGTK is able to support using both the primary selection and the
 463     // clipboard at the same time I think it causes more problems than it is
 464     // worth to implement this method.  Selecting text should not clear the
 465     // clipboard.  --Robin
 466 #ifdef __WXGTK__
 467     // Put the selected text in the PRIMARY selection
 468     if (currentPos != anchor) {
 469         SelectionText st;
 470         CopySelectionRange(&st);
 471         if (wxTheClipboard->Open()) {
 472             wxTheClipboard->UsePrimarySelection(TRUE);
 473             wxString text = stc2wx(st.s, st.len);
 474             wxTheClipboard->SetData(new wxTextDataObject(text));
 475             wxTheClipboard->UsePrimarySelection(FALSE);
 476             wxTheClipboard->Close();
 477         }
 478     }
 479 #endif
 480 #endif
 481 }
 482
 483
 484 long ScintillaWX::DefWndProc(unsigned int /*iMessage*/, unsigned long /*wParam*/, long /*lParam*/) {
 485     return 0;
 486 }
 487
 488 long ScintillaWX::WndProc(unsigned int iMessage, unsigned long wParam, long lParam) {
 489       switch (iMessage) {
 490       case SCI_CALLTIPSHOW: {
 491           // NOTE: This is copied here from scintilla/src/ScintillaBase.cxx
 492           // because of the little tweak that needs done below for wxGTK.
 493           // When updating new versions double check that this is still
 494           // needed, and that any new code there is copied here too.
 495           Point pt = LocationFromPosition(wParam);
 496           char* defn = reinterpret_cast<char *>(lParam);
 497           AutoCompleteCancel();
 498           pt.y += vs.lineHeight;
 499           PRectangle rc = ct.CallTipStart(currentPos, pt,
 500                                           defn,
 501                                           vs.styles[STYLE_DEFAULT].fontName,
 502                                           vs.styles[STYLE_DEFAULT].sizeZoomed,
 503                                           IsUnicodeMode(),
 504                                           wMain);
 505           // If the call-tip window would be out of the client
 506           // space, adjust so it displays above the text.
 507           PRectangle rcClient = GetClientRectangle();
 508           if (rc.bottom > rcClient.bottom) {
 509 #ifdef __WXGTK__
 510               int offset = int(vs.lineHeight * 1.25)  + rc.Height();
 511 #else
 512               int offset = vs.lineHeight + rc.Height();
 513 #endif
 514               rc.top -= offset;
 515               rc.bottom -= offset;
 516           }
 517           // Now display the window.
 518           CreateCallTipWindow(rc);
 519           ct.wCallTip.SetPositionRelative(rc, wMain);
 520           ct.wCallTip.Show();
 521           break;
 522       }
 523
 524 #ifdef SCI_LEXER
 525         case SCI_LOADLEXERLIBRARY:
 526             LexerManager::GetInstance()->Load((const char*)lParam);
 527             break;
 528 #endif
 529       default:
 530           return ScintillaBase::WndProc(iMessage, wParam, lParam);
 531       }
 532       return 0;
 533 }
 534
 535
 536
 537 //----------------------------------------------------------------------
 538 // Event delegates
 539
 540 void ScintillaWX::DoPaint(wxDC* dc, wxRect rect) {
 541
 542     paintState = painting;
 543     Surface* surfaceWindow = Surface::Allocate();
 544     surfaceWindow->Init(dc, wMain.GetID());
 545     rcPaint = PRectangleFromwxRect(rect);
 546     PRectangle rcClient = GetClientRectangle();
 547     paintingAllText = rcPaint.Contains(rcClient);
 548
 549     dc->BeginDrawing();
 550     ClipChildren(*dc, rcPaint);
 551     Paint(surfaceWindow, rcPaint);
 552
 553     delete surfaceWindow;
 554     if (paintState == paintAbandoned) {
 555         // Painting area was insufficient to cover new styling or brace
 556         // highlight positions
 557         FullPaint();
 558     }
 559     paintState = notPainting;
 560     dc->EndDrawing();
 561 }
 562
 563
 564 void ScintillaWX::DoHScroll(int type, int pos) {
 565     int xPos = xOffset;
 566     PRectangle rcText = GetTextRectangle();
 567     int pageWidth = rcText.Width() * 2 / 3;
 568     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 569         xPos -= H_SCROLL_STEP;
 570     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 571         xPos += H_SCROLL_STEP;
 572     else if (type == wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 573         xPos -= pageWidth;
 574     else if (type == wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN) {
 575         xPos += pageWidth;
 576         if (xPos > scrollWidth - rcText.Width()) {
 577             xPos = scrollWidth - rcText.Width();
 578         }
 579     }
 580     else if (type == wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 581         xPos = 0;
 582     else if (type == wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 583         xPos = scrollWidth;
 584     else if (type == wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 585         xPos = pos;
 586
 587     HorizontalScrollTo(xPos);
 588 }
 589
 590 void ScintillaWX::DoVScroll(int type, int pos) {
 591     int topLineNew = topLine;
 592     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 593         topLineNew -= 1;
 594     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 595         topLineNew += 1;
 596     else if (type ==  wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 597         topLineNew -= LinesToScroll();
 598     else if (type ==  wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN)
 599         topLineNew += LinesToScroll();
 600     else if (type ==  wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 601         topLineNew = 0;
 602     else if (type ==  wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 603         topLineNew = MaxScrollPos();
 604     else if (type ==   wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 605         topLineNew = pos;
 606
 607     ScrollTo(topLineNew);
 608 }
 609
 610 void ScintillaWX::DoMouseWheel(int rotation, int delta,
 611                                int linesPerAction, int ctrlDown,
 612                                bool isPageScroll ) {
 613     int topLineNew = topLine;
 614     int lines;
 615
 616     if (ctrlDown) {  // Zoom the fonts if Ctrl key down
 617         if (rotation < 0) {
 618             KeyCommand(SCI_ZOOMIN);
 619         }
 620         else {
 621             KeyCommand(SCI_ZOOMOUT);
 622         }
 623     }
 624     else { // otherwise just scroll the window
 625         if ( !delta )
 626             delta = 120;
 627         wheelRotation += rotation;
 628         lines = wheelRotation / delta;
 629         wheelRotation -= lines * delta;
 630         if (lines != 0) {
 631             if (isPageScroll)
 632                 lines = lines * LinesOnScreen();  // lines is either +1 or -1
 633             else
 634                 lines *= linesPerAction;
 635             topLineNew -= lines;
 636             ScrollTo(topLineNew);
 637         }
 638     }
 639 }
 640
 641
 642 void ScintillaWX::DoSize(int WXUNUSED(width), int WXUNUSED(height)) {
 643 //      PRectangle rcClient(0,0,width,height);
 644 //      SetScrollBarsTo(rcClient);
 645 //      DropGraphics();
 646     ChangeSize();
 647 }
 648
 649 void ScintillaWX::DoLoseFocus(){
 650     focusEvent = true;
 651     SetFocusState(false);
 652     focusEvent = false;
 653 }
 654
 655 void ScintillaWX::DoGainFocus(){
 656     focusEvent = true;
 657     SetFocusState(true);
 658     focusEvent = false;
 659 }
 660
 661 void ScintillaWX::DoSysColourChange() {
 662     InvalidateStyleData();
 663 }
 664
 665 void ScintillaWX::DoLeftButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt) {
 666     ButtonDown(pt, curTime, shift, ctrl, alt);
 667 }
 668
 669 void ScintillaWX::DoLeftButtonUp(Point pt, unsigned int curTime, bool ctrl) {
 670     ButtonUp(pt, curTime, ctrl);
 671 }
 672
 673 void ScintillaWX::DoLeftButtonMove(Point pt) {
 674     ButtonMove(pt);
 675 }
 676
 677 #ifdef __WXGTK__
 678 void ScintillaWX::DoMiddleButtonUp(Point pt) {
 679     // Set the current position to the mouse click point and
 680     // then paste in the PRIMARY selection, if any.  wxGTK only.
 681     int newPos = PositionFromLocation(pt);
 682     MovePositionTo(newPos, noSel, true);
 683
 684     pdoc->BeginUndoAction();
 685     wxTextDataObject data;
 686     bool gotData = FALSE;
 687     if (wxTheClipboard->Open()) {
 688         wxTheClipboard->UsePrimarySelection(TRUE);
 689         gotData = wxTheClipboard->GetData(data);
 690         wxTheClipboard->UsePrimarySelection(FALSE);
 691         wxTheClipboard->Close();
 692     }
 693     if (gotData) {
 694         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(data.GetText());
 695         int        len = strlen(buf);
 696         pdoc->InsertString(currentPos, buf, len);
 697         SetEmptySelection(currentPos + len);
 698     }
 699     pdoc->EndUndoAction();
 700     NotifyChange();
 701     Redraw();
 702
 703     ShowCaretAtCurrentPosition();
 704     EnsureCaretVisible();
 705 }
 706 #else
 707 void ScintillaWX::DoMiddleButtonUp(Point WXUNUSED(pt)) {
 708 }
 709 #endif
 710
 711
 712 void ScintillaWX::DoAddChar(int key) {
 713 #if wxUSE_UNICODE
 714     wxChar wszChars[2];
 715     wszChars[0] = key;
 716     wszChars[1] = 0;
 717     wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(wszChars);
 718     AddCharUTF((char*)buf.data(), strlen(buf));
 719 #else
 720     AddChar(key);
 721 #endif
 722 }
 723
 724
 725 #ifdef __WXMAC__
 726 int  ScintillaWX::DoKeyDown(int key, bool shift, bool ctrl, bool alt, bool meta, bool* consumed) {
 727 #else
 728 int  ScintillaWX::DoKeyDown(int key, bool shift, bool ctrl, bool alt, bool WXUNUSED(meta), bool* consumed) {
 729 #endif
 730 #if defined(__WXGTK__) || defined(__WXMAC__)
 731     // Ctrl chars (A-Z) end up with the wrong keycode on wxGTK
 732     // TODO:  Check this, it shouldn't be true any longer.
 733     if (ctrl && key >= 1 && key <= 26)
 734         key += 'A' - 1;
 735 #endif
 736
 737     switch (key) {
 738     case WXK_DOWN:              key = SCK_DOWN;     break;
 739     case WXK_UP:                key = SCK_UP;       break;
 740     case WXK_LEFT:              key = SCK_LEFT;     break;
 741     case WXK_RIGHT:             key = SCK_RIGHT;    break;
 742     case WXK_HOME:              key = SCK_HOME;     break;
 743     case WXK_END:               key = SCK_END;      break;
 744     case WXK_PAGEUP:            // fall through
 745     case WXK_PRIOR:             key = SCK_PRIOR;    break;
 746     case WXK_PAGEDOWN:          // fall through
 747     case WXK_NEXT:              key = SCK_NEXT;     break;
 748     case WXK_DELETE:            key = SCK_DELETE;   break;
 749     case WXK_INSERT:            key = SCK_INSERT;   break;
 750     case WXK_ESCAPE:            key = SCK_ESCAPE;   break;
 751     case WXK_BACK:              key = SCK_BACK;     break;
 752     case WXK_TAB:               key = SCK_TAB;      break;
 753     case WXK_RETURN:            key = SCK_RETURN;   break;
 754     case WXK_ADD:               // fall through
 755     case WXK_NUMPAD_ADD:        key = SCK_ADD;      break;
 756     case WXK_SUBTRACT:          // fall through
 757     case WXK_NUMPAD_SUBTRACT:   key = SCK_SUBTRACT; break;
 758     case WXK_DIVIDE:            // fall through
 759     case WXK_NUMPAD_DIVIDE:     key = SCK_DIVIDE;   break;
 760     case WXK_CONTROL:           key = 0; break;
 761     case WXK_ALT:               key = 0; break;
 762     case WXK_SHIFT:             key = 0; break;
 763     case WXK_MENU:              key = 0; break;
 764     }
 765
 766 #ifdef __WXMAC__
 767     if ( meta ) {
 768         // check for a few common Mac Meta-key combos and remap them to Ctrl
 769         // for Scintilla
 770         switch ( key ) {
 771         case 'Z':       // Undo
 772         case 'X':       // Cut
 773         case 'C':       // Copy
 774         case 'V':       // Paste
 775         case 'A':       // Select All
 776             ctrl = true;
 777             break;
 778         }
 779     }
 780 #endif
 781
 782     int rv = KeyDown(key, shift, ctrl, alt, consumed);
 783
 784     if (key)
 785         return rv;
 786     else
 787         return 1;
 788 }
 789
 790
 791 void ScintillaWX::DoCommand(int ID) {
 792     Command(ID);
 793 }
 794
 795
 796 void ScintillaWX::DoContextMenu(Point pt) {
 797     if (displayPopupMenu)
 798         ContextMenu(pt);
 799 }
 800
 801 void ScintillaWX::DoOnListBox() {
 802     AutoCompleteCompleted();
 803 }
 804
 805
 806 void ScintillaWX::DoOnIdle(wxIdleEvent& evt) {
 807
 808     if ( Idle() )
 809         evt.RequestMore();
 810     else
 811         SetIdle(false);
 812 }
 813
 814 //----------------------------------------------------------------------
 815
 816 #if wxUSE_DRAG_AND_DROP
 817 bool ScintillaWX::DoDropText(long x, long y, const wxString& data) {
 818     SetDragPosition(invalidPosition);
 819
 820     // Send an event to allow the drag details to be changed
 821     wxStyledTextEvent evt(wxEVT_STC_DO_DROP, stc->GetId());
 822     evt.SetEventObject(stc);
 823     evt.SetDragResult(dragResult);
 824     evt.SetX(x);
 825     evt.SetY(y);
 826     evt.SetPosition(PositionFromLocation(Point(x,y)));
 827     evt.SetDragText(data);
 828     stc->GetEventHandler()->ProcessEvent(evt);
 829
 830     dragResult = evt.GetDragResult();
 831     if (dragResult == wxDragMove || dragResult == wxDragCopy) {
 832         DropAt(evt.GetPosition(),
 833                wx2stc(evt.GetDragText()),
 834                dragResult == wxDragMove,
 835                FALSE); // TODO: rectangular?
 836         return TRUE;
 837     }
 838     return FALSE;
 839 }
 840
 841
 842 wxDragResult ScintillaWX::DoDragEnter(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxDragResult def) {
 843     dragResult = def;
 844     return dragResult;
 845 }
 846
 847
 848 wxDragResult ScintillaWX::DoDragOver(wxCoord x, wxCoord y, wxDragResult def) {
 849     SetDragPosition(PositionFromLocation(Point(x, y)));
 850
 851     // Send an event to allow the drag result to be changed
 852     wxStyledTextEvent evt(wxEVT_STC_DRAG_OVER, stc->GetId());
 853     evt.SetEventObject(stc);
 854     evt.SetDragResult(def);
 855     evt.SetX(x);
 856     evt.SetY(y);
 857     evt.SetPosition(PositionFromLocation(Point(x,y)));
 858     stc->GetEventHandler()->ProcessEvent(evt);
 859
 860     dragResult = evt.GetDragResult();
 861     return dragResult;
 862 }
 863
 864
 865 void ScintillaWX::DoDragLeave() {
 866     SetDragPosition(invalidPosition);
 867 }
 868 #endif
 869 //----------------------------------------------------------------------
 870
 871 // Force the whole window to be repainted
 872 void ScintillaWX::FullPaint() {
 873     stc->Refresh(false);
 874     stc->Update();
 875 }
 876
 877
 878 void ScintillaWX::DoScrollToLine(int line) {
 879     ScrollTo(line);
 880 }
 881
 882
 883 void ScintillaWX::DoScrollToColumn(int column) {
 884     HorizontalScrollTo(column * vs.spaceWidth);
 885 }
 886
 887 #ifdef __WXGTK__
 888 void ScintillaWX::ClipChildren(wxDC& dc, PRectangle rect) {
 889     wxRegion rgn(wxRectFromPRectangle(rect));
 890     if (ac.Active()) {
 891         wxRect childRect = ((wxWindow*)ac.lb->GetID())->GetRect();
 892         rgn.Subtract(childRect);
 893     }
 894     if (ct.inCallTipMode) {
 895         wxWindow* tip = (wxWindow*)ct.wCallTip.GetID();
 896         wxRect childRect = tip->GetRect();
 897 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
 898         tip->GetParent()->ScreenToClient(&childRect.x, &childRect.y);
 899 #endif
 900         rgn.Subtract(childRect);
 901     }
 902
 903     dc.SetClippingRegion(rgn);
 904 }
 905 #else
 906 void ScintillaWX::ClipChildren(wxDC& WXUNUSED(dc), PRectangle WXUNUSED(rect)) {
 907 }
 908 #endif
 909
 910
 911 void ScintillaWX::SetUseAntiAliasing(bool useAA) {
 912     vs.extraFontFlag = useAA;
 913     InvalidateStyleRedraw();
 914 }
 915
 916 bool ScintillaWX::GetUseAntiAliasing() {
 917     return vs.extraFontFlag;
 918 }
 919
 920 //----------------------------------------------------------------------
 921 //----------------------------------------------------------------------