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 #include "wx/wx.h"
  18 #include "wx/textbuf.h"
  19 #include "wx/dataobj.h"
  20 #include "wx/clipbrd.h"
  21 #include "wx/dnd.h"
  22
  23 #include "ScintillaWX.h"
  24 #include "ExternalLexer.h"
  25 #include "wx/stc/stc.h"
  26 #include "PlatWX.h"
  27
  28 #ifdef __WXMSW__
  29     // GetHwndOf()
  30     #include "wx/msw/private.h"
  31 #endif
  32
  33 //----------------------------------------------------------------------
  34 // Helper classes
  35
  36 class wxSTCTimer : public wxTimer {
  37 public:
  38     wxSTCTimer(ScintillaWX* swx) {
  39         this->swx = swx;
  40     }
  41
  42     void Notify() {
  43         swx->DoTick();
  44     }
  45
  46 private:
  47     ScintillaWX* swx;
  48 };
  49
  50
  51 #if wxUSE_DRAG_AND_DROP
  52 class wxStartDragTimer : public wxTimer {
  53 public:
  54     wxStartDragTimer(ScintillaWX* swx) {
  55         this->swx = swx;
  56     }
  57
  58     void Notify() {
  59         swx->DoStartDrag();
  60     }
  61
  62 private:
  63     ScintillaWX* swx;
  64 };
  65
  66
  67 bool wxSTCDropTarget::OnDropText(wxCoord x, wxCoord y, const wxString& data) {
  68     return swx->DoDropText(x, y, data);
  69 }
  70
  71 wxDragResult  wxSTCDropTarget::OnEnter(wxCoord x, wxCoord y, wxDragResult def) {
  72     return swx->DoDragEnter(x, y, def);
  73 }
  74
  75 wxDragResult  wxSTCDropTarget::OnDragOver(wxCoord x, wxCoord y, wxDragResult def) {
  76     return swx->DoDragOver(x, y, def);
  77 }
  78
  79 void  wxSTCDropTarget::OnLeave() {
  80     swx->DoDragLeave();
  81 }
  82 #endif // wxUSE_DRAG_AND_DROP
  83
  84
  85 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
  86 #include <wx/popupwin.h>
  87 #define wxSTCCallTipBase wxPopupWindow
  88 #define param2  wxBORDER_NONE  // popup's 2nd param is flags
  89 #else
  90 #define wxSTCCallTipBase wxWindow
  91 #define param2 -1 // wxWindow's 2nd param is ID
  92 #endif
  93
  94 #include <wx/dcbuffer.h>
  95
  96 class wxSTCCallTip : public wxSTCCallTipBase {
  97 public:
  98     wxSTCCallTip(wxWindow* parent, CallTip* ct, ScintillaWX* swx)
  99         : wxSTCCallTipBase(parent, param2),
 100           m_ct(ct), m_swx(swx), m_cx(wxDefaultCoord), m_cy(wxDefaultCoord)
 101         {
 102         }
 103
 104     ~wxSTCCallTip() {
 105 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP && defined(__WXGTK__)
 106         wxRect rect = GetRect();
 107         rect.x = m_cx;
 108         rect.y = m_cy;
 109         GetParent()->Refresh(false, &rect);
 110 #endif
 111     }
 112
 113     bool AcceptsFocus() const { return false; }
 114
 115     void OnPaint(wxPaintEvent& WXUNUSED(evt)) {
 116         wxBufferedPaintDC dc(this);
 117         Surface* surfaceWindow = Surface::Allocate();
 118         surfaceWindow->Init(&dc, m_ct->wDraw.GetID());
 119         m_ct->PaintCT(surfaceWindow);
 120         surfaceWindow->Release();
 121         delete surfaceWindow;
 122     }
 123
 124     void OnFocus(wxFocusEvent& event) {
 125         GetParent()->SetFocus();
 126         event.Skip();
 127     }
 128
 129     void OnLeftDown(wxMouseEvent& event) {
 130         wxPoint pt = event.GetPosition();
 131         Point p(pt.x, pt.y);
 132         m_ct->MouseClick(p);
 133         m_swx->CallTipClick();
 134     }
 135
 136 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
 137     virtual void DoSetSize(int x, int y,
 138                            int width, int height,
 139                            int sizeFlags = wxSIZE_AUTO) {
 140         if (x != wxDefaultCoord) {
 141             m_cx = x;
 142             GetParent()->ClientToScreen(&x, NULL);
 143         }
 144         if (y != wxDefaultCoord) {
 145             m_cy = y;
 146             GetParent()->ClientToScreen(NULL, &y);
 147         }
 148         wxSTCCallTipBase::DoSetSize(x, y, width, height, sizeFlags);
 149     }
 150 #endif
 151
 152     wxPoint GetMyPosition() {
 153         return wxPoint(m_cx, m_cy);
 154     }
 155
 156 private:
 157     CallTip*      m_ct;
 158     ScintillaWX*  m_swx;
 159     int           m_cx, m_cy;
 160     DECLARE_EVENT_TABLE()
 161 };
 162
 163 BEGIN_EVENT_TABLE(wxSTCCallTip, wxSTCCallTipBase)
 164     EVT_PAINT(wxSTCCallTip::OnPaint)
 165     EVT_SET_FOCUS(wxSTCCallTip::OnFocus)
 166     EVT_LEFT_DOWN(wxSTCCallTip::OnLeftDown)
 167 END_EVENT_TABLE()
 168
 169
 170 //----------------------------------------------------------------------
 171
 172 #if wxUSE_DATAOBJ
 173 static wxTextFileType wxConvertEOLMode(int scintillaMode)
 174 {
 175     wxTextFileType type;
 176
 177     switch (scintillaMode) {
 178         case wxSTC_EOL_CRLF:
 179             type = wxTextFileType_Dos;
 180             break;
 181
 182         case wxSTC_EOL_CR:
 183             type = wxTextFileType_Mac;
 184             break;
 185
 186         case wxSTC_EOL_LF:
 187             type = wxTextFileType_Unix;
 188             break;
 189
 190         default:
 191             type = wxTextBuffer::typeDefault;
 192             break;
 193     }
 194     return type;
 195 }
 196 #endif // wxUSE_DATAOBJ
 197
 198
 199 //----------------------------------------------------------------------
 200 // Constructor/Destructor
 201
 202
 203 ScintillaWX::ScintillaWX(wxStyledTextCtrl* win) {
 204     capturedMouse = false;
 205     focusEvent = false;
 206     wMain = win;
 207     stc   = win;
 208     wheelRotation = 0;
 209     Initialise();
 210 #ifdef __WXMSW__
 211     sysCaretBitmap = 0;
 212     sysCaretWidth = 0;
 213     sysCaretHeight = 0;
 214 #endif
 215 #if wxUSE_DRAG_AND_DROP
 216     startDragTimer = new wxStartDragTimer(this);
 217 #endif // wxUSE_DRAG_AND_DROP
 218 }
 219
 220
 221 ScintillaWX::~ScintillaWX() {
 222 #if wxUSE_DRAG_AND_DROP
 223     delete startDragTimer;
 224 #endif // wxUSE_DRAG_AND_DROP
 225     Finalise();
 226 }
 227
 228 //----------------------------------------------------------------------
 229 // base class virtuals
 230
 231
 232 void ScintillaWX::Initialise() {
 233     //ScintillaBase::Initialise();
 234 #if wxUSE_DRAG_AND_DROP
 235     dropTarget = new wxSTCDropTarget;
 236     dropTarget->SetScintilla(this);
 237     stc->SetDropTarget(dropTarget);
 238 #endif // wxUSE_DRAG_AND_DROP
 239 #ifdef __WXMAC__
 240     vs.extraFontFlag = false;  // UseAntiAliasing
 241 #else
 242     vs.extraFontFlag = true;   // UseAntiAliasing
 243 #endif
 244 }
 245
 246
 247 void ScintillaWX::Finalise() {
 248     ScintillaBase::Finalise();
 249     SetTicking(false);
 250     SetIdle(false);
 251     DestroySystemCaret();
 252 }
 253
 254
 255 void ScintillaWX::StartDrag() {
 256 #if wxUSE_DRAG_AND_DROP
 257     // We defer the starting of the DnD, otherwise the LeftUp of a normal
 258     // click could be lost and the STC will think it is doing a DnD when the
 259     // user just wanted a normal click.
 260     startDragTimer->Start(200, true);
 261 #endif // wxUSE_DRAG_AND_DROP
 262 }
 263
 264 void ScintillaWX::DoStartDrag() {
 265 #if wxUSE_DRAG_AND_DROP
 266     wxString dragText = stc2wx(drag.s, drag.len);
 267
 268     // Send an event to allow the drag text to be changed
 269     wxStyledTextEvent evt(wxEVT_STC_START_DRAG, stc->GetId());
 270     evt.SetEventObject(stc);
 271     evt.SetDragText(dragText);
 272     evt.SetDragAllowMove(true);
 273     evt.SetPosition(wxMin(stc->GetSelectionStart(),
 274                           stc->GetSelectionEnd()));
 275     stc->GetEventHandler()->ProcessEvent(evt);
 276     dragText = evt.GetDragText();
 277
 278     if (dragText.length()) {
 279         wxDropSource        source(stc);
 280         wxTextDataObject    data(dragText);
 281         wxDragResult        result;
 282
 283         source.SetData(data);
 284         dropWentOutside = true;
 285         result = source.DoDragDrop(evt.GetDragAllowMove());
 286         if (result == wxDragMove && dropWentOutside)
 287             ClearSelection();
 288         inDragDrop = false;
 289         SetDragPosition(invalidPosition);
 290     }
 291 #endif // wxUSE_DRAG_AND_DROP
 292 }
 293
 294
 295 bool ScintillaWX::SetIdle(bool on) {
 296     if (idler.state != on) {
 297         // connect or disconnect the EVT_IDLE handler
 298         if (on)
 299             stc->Connect(wxID_ANY, wxEVT_IDLE,
 300                          (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 301         else
 302             stc->Disconnect(wxID_ANY, wxEVT_IDLE,
 303                             (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 304         idler.state = on;
 305     }
 306     return idler.state;
 307 }
 308
 309
 310 void ScintillaWX::SetTicking(bool on) {
 311     wxSTCTimer* steTimer;
 312     if (timer.ticking != on) {
 313         timer.ticking = on;
 314         if (timer.ticking) {
 315             steTimer = new wxSTCTimer(this);
 316             steTimer->Start(timer.tickSize);
 317             timer.tickerID = steTimer;
 318         } else {
 319             steTimer = (wxSTCTimer*)timer.tickerID;
 320             steTimer->Stop();
 321             delete steTimer;
 322             timer.tickerID = 0;
 323         }
 324     }
 325     timer.ticksToWait = caret.period;
 326 }
 327
 328
 329 void ScintillaWX::SetMouseCapture(bool on) {
 330     if (mouseDownCaptures) {
 331         if (on && !capturedMouse)
 332             stc->CaptureMouse();
 333         else if (!on && capturedMouse && stc->HasCapture())
 334             stc->ReleaseMouse();
 335         capturedMouse = on;
 336     }
 337 }
 338
 339
 340 bool ScintillaWX::HaveMouseCapture() {
 341     return capturedMouse;
 342 }
 343
 344
 345 void ScintillaWX::ScrollText(int linesToMove) {
 346     int dy = vs.lineHeight * (linesToMove);
 347     stc->ScrollWindow(0, dy);
 348     stc->Update();
 349 }
 350
 351 void ScintillaWX::SetVerticalScrollPos() {
 352     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 353         stc->SetScrollPos(wxVERTICAL, topLine);
 354     }
 355     else { // otherwise use the one that's been given to us
 356         stc->m_vScrollBar->SetThumbPosition(topLine);
 357     }
 358 }
 359
 360 void ScintillaWX::SetHorizontalScrollPos() {
 361     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 362         stc->SetScrollPos(wxHORIZONTAL, xOffset);
 363     }
 364     else { // otherwise use the one that's been given to us
 365         stc->m_hScrollBar->SetThumbPosition(xOffset);
 366     }
 367 }
 368
 369
 370 const int H_SCROLL_STEP = 20;
 371
 372 bool ScintillaWX::ModifyScrollBars(int nMax, int nPage) {
 373     bool modified = false;
 374
 375     int vertEnd = nMax;
 376     if (!verticalScrollBarVisible)
 377         vertEnd = 0;
 378
 379     // Check the vertical scrollbar
 380     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 381         int  sbMax    = stc->GetScrollRange(wxVERTICAL);
 382         int  sbThumb  = stc->GetScrollThumb(wxVERTICAL);
 383         int  sbPos    = stc->GetScrollPos(wxVERTICAL);
 384         if (sbMax != vertEnd || sbThumb != nPage) {
 385             stc->SetScrollbar(wxVERTICAL, sbPos, nPage, vertEnd+1);
 386             modified = true;
 387         }
 388     }
 389     else { // otherwise use the one that's been given to us
 390         int  sbMax    = stc->m_vScrollBar->GetRange();
 391         int  sbPage   = stc->m_vScrollBar->GetPageSize();
 392         int  sbPos    = stc->m_vScrollBar->GetThumbPosition();
 393         if (sbMax != vertEnd || sbPage != nPage) {
 394             stc->m_vScrollBar->SetScrollbar(sbPos, nPage, vertEnd+1, nPage);
 395             modified = true;
 396         }
 397     }
 398
 399
 400     // Check the horizontal scrollbar
 401     PRectangle rcText = GetTextRectangle();
 402     int horizEnd = scrollWidth;
 403     if (horizEnd < 0)
 404         horizEnd = 0;
 405     if (!horizontalScrollBarVisible || (wrapState != eWrapNone))
 406         horizEnd = 0;
 407     int pageWidth = rcText.Width();
 408
 409     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 410         int sbMax    = stc->GetScrollRange(wxHORIZONTAL);
 411         int sbThumb  = stc->GetScrollThumb(wxHORIZONTAL);
 412         int sbPos    = stc->GetScrollPos(wxHORIZONTAL);
 413         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 414             stc->SetScrollbar(wxHORIZONTAL, sbPos, pageWidth, horizEnd);
 415             modified = true;
 416             if (scrollWidth < pageWidth) {
 417                 HorizontalScrollTo(0);
 418             }
 419         }
 420     }
 421     else { // otherwise use the one that's been given to us
 422         int sbMax    = stc->m_hScrollBar->GetRange();
 423         int sbThumb  = stc->m_hScrollBar->GetPageSize();
 424         int sbPos    = stc->m_hScrollBar->GetThumbPosition();
 425         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 426             stc->m_hScrollBar->SetScrollbar(sbPos, pageWidth, horizEnd, pageWidth);
 427             modified = true;
 428             if (scrollWidth < pageWidth) {
 429                 HorizontalScrollTo(0);
 430             }
 431         }
 432     }
 433
 434     return modified;
 435 }
 436
 437
 438 void ScintillaWX::NotifyChange() {
 439     stc->NotifyChange();
 440 }
 441
 442
 443 void ScintillaWX::NotifyParent(SCNotification scn) {
 444     stc->NotifyParent(&scn);
 445 }
 446
 447
 448 // This method is overloaded from ScintillaBase in order to prevent the
 449 // AutoComplete window from being destroyed when it gets the focus.  There is
 450 // a side effect that the AutoComp will also not be destroyed when switching
 451 // to another window, but I think that is okay.
 452 void ScintillaWX::CancelModes() {
 453     if (! focusEvent)
 454         AutoCompleteCancel();
 455     ct.CallTipCancel();
 456     Editor::CancelModes();
 457 }
 458
 459
 460
 461 void ScintillaWX::Copy() {
 462     if (currentPos != anchor) {
 463         SelectionText st;
 464         CopySelectionRange(&st);
 465         CopyToClipboard(st);
 466     }
 467 }
 468
 469
 470 void ScintillaWX::Paste() {
 471     pdoc->BeginUndoAction();
 472     ClearSelection();
 473
 474 #if wxUSE_DATAOBJ
 475     wxTextDataObject data;
 476     bool gotData = false;
 477
 478     if (wxTheClipboard->Open()) {
 479         wxTheClipboard->UsePrimarySelection(false);
 480         gotData = wxTheClipboard->GetData(data);
 481         wxTheClipboard->Close();
 482     }
 483     if (gotData) {
 484         wxString   text = wxTextBuffer::Translate(data.GetText(),
 485                                                   wxConvertEOLMode(pdoc->eolMode));
 486         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 487
 488 #if wxUSE_UNICODE
 489         // free up the old character buffer in case the text is real big
 490         data.SetText(wxEmptyString);
 491         text = wxEmptyString;
 492 #endif
 493         int len = strlen(buf);
 494         pdoc->InsertString(currentPos, buf, len);
 495         SetEmptySelection(currentPos + len);
 496     }
 497 #endif // wxUSE_DATAOBJ
 498
 499     pdoc->EndUndoAction();
 500     NotifyChange();
 501     Redraw();
 502 }
 503
 504
 505 void ScintillaWX::CopyToClipboard(const SelectionText& st) {
 506 #if wxUSE_CLIPBOARD
 507     if (wxTheClipboard->Open()) {
 508         wxTheClipboard->UsePrimarySelection(false);
 509         wxString text = wxTextBuffer::Translate(stc2wx(st.s, st.len-1));
 510         wxTheClipboard->SetData(new wxTextDataObject(text));
 511         wxTheClipboard->Close();
 512     }
 513 #else
 514     wxUnusedVar(st);
 515 #endif // wxUSE_CLIPBOARD
 516 }
 517
 518
 519 bool ScintillaWX::CanPaste() {
 520 #if wxUSE_CLIPBOARD
 521     bool canPaste = false;
 522     bool didOpen;
 523
 524     if (Editor::CanPaste()) {
 525         didOpen = !wxTheClipboard->IsOpened();
 526         if ( didOpen )
 527             wxTheClipboard->Open();
 528
 529         if (wxTheClipboard->IsOpened()) {
 530             wxTheClipboard->UsePrimarySelection(false);
 531             canPaste = wxTheClipboard->IsSupported(wxUSE_UNICODE ? wxDF_UNICODETEXT : wxDF_TEXT);
 532             if (didOpen)
 533                 wxTheClipboard->Close();
 534         }
 535     }
 536     return canPaste;
 537 #else
 538     return false;
 539 #endif // wxUSE_CLIPBOARD
 540 }
 541
 542 void ScintillaWX::CreateCallTipWindow(PRectangle) {
 543     if (! ct.wCallTip.Created() ) {
 544         ct.wCallTip = new wxSTCCallTip(stc, &ct, this);
 545         ct.wDraw = ct.wCallTip;
 546     }
 547 }
 548
 549
 550 void ScintillaWX::AddToPopUp(const char *label, int cmd, bool enabled) {
 551     if (!label[0])
 552         ((wxMenu*)popup.GetID())->AppendSeparator();
 553     else
 554         ((wxMenu*)popup.GetID())->Append(cmd, wxGetTranslation(stc2wx(label)));
 555
 556     if (!enabled)
 557         ((wxMenu*)popup.GetID())->Enable(cmd, enabled);
 558 }
 559
 560
 561 // This is called by the Editor base class whenever something is selected
 562 void ScintillaWX::ClaimSelection() {
 563 #if 0
 564     // Until wxGTK is able to support using both the primary selection and the
 565     // clipboard at the same time I think it causes more problems than it is
 566     // worth to implement this method.  Selecting text should not clear the
 567     // clipboard.  --Robin
 568 #ifdef __WXGTK__
 569     // Put the selected text in the PRIMARY selection
 570     if (currentPos != anchor) {
 571         SelectionText st;
 572         CopySelectionRange(&st);
 573         if (wxTheClipboard->Open()) {
 574             wxTheClipboard->UsePrimarySelection(true);
 575             wxString text = stc2wx(st.s, st.len);
 576             wxTheClipboard->SetData(new wxTextDataObject(text));
 577             wxTheClipboard->UsePrimarySelection(false);
 578             wxTheClipboard->Close();
 579         }
 580     }
 581 #endif
 582 #endif
 583 }
 584
 585
 586 void ScintillaWX::UpdateSystemCaret() {
 587 #ifdef __WXMSW__
 588     if (hasFocus) {
 589         if (HasCaretSizeChanged()) {
 590             DestroySystemCaret();
 591             CreateSystemCaret();
 592         }
 593         Point pos = LocationFromPosition(currentPos);
 594         ::SetCaretPos(pos.x, pos.y);
 595     }
 596 #endif
 597 }
 598
 599
 600 bool ScintillaWX::HasCaretSizeChanged() {
 601 #ifdef __WXMSW__
 602     if (( (0 != vs.caretWidth) && (sysCaretWidth != vs.caretWidth) )
 603         || (0 != vs.lineHeight) && (sysCaretHeight != vs.lineHeight)) {
 604         return true;
 605     }
 606 #endif
 607     return false;
 608 }
 609
 610 bool ScintillaWX::CreateSystemCaret() {
 611 #ifdef __WXMSW__
 612     sysCaretWidth = vs.caretWidth;
 613     if (0 == sysCaretWidth) {
 614         sysCaretWidth = 1;
 615     }
 616     sysCaretHeight = vs.lineHeight;
 617     int bitmapSize = (((sysCaretWidth + 15) & ~15) >> 3) * sysCaretHeight;
 618     char *bits = new char[bitmapSize];
 619     memset(bits, 0, bitmapSize);
 620     sysCaretBitmap = ::CreateBitmap(sysCaretWidth, sysCaretHeight, 1,
 621                                     1, reinterpret_cast<BYTE *>(bits));
 622     delete [] bits;
 623     BOOL retval = ::CreateCaret(GetHwndOf(stc), sysCaretBitmap,
 624                                 sysCaretWidth, sysCaretHeight);
 625     ::ShowCaret(GetHwndOf(stc));
 626     return retval != 0;
 627 #else
 628     return false;
 629 #endif
 630 }
 631
 632 bool ScintillaWX::DestroySystemCaret() {
 633 #ifdef __WXMSW__
 634     ::HideCaret(GetHwndOf(stc));
 635     BOOL retval = ::DestroyCaret();
 636     if (sysCaretBitmap) {
 637         ::DeleteObject(sysCaretBitmap);
 638         sysCaretBitmap = 0;
 639     }
 640     return retval != 0;
 641 #else
 642     return false;
 643 #endif
 644 }
 645
 646
 647 //----------------------------------------------------------------------
 648
 649
 650 long ScintillaWX::DefWndProc(unsigned int /*iMessage*/, unsigned long /*wParam*/, long /*lParam*/) {
 651     return 0;
 652 }
 653
 654 long ScintillaWX::WndProc(unsigned int iMessage, unsigned long wParam, long lParam) {
 655       switch (iMessage) {
 656       case SCI_CALLTIPSHOW: {
 657           // NOTE: This is copied here from scintilla/src/ScintillaBase.cxx
 658           // because of the little tweak that needs done below for wxGTK.
 659           // When updating new versions double check that this is still
 660           // needed, and that any new code there is copied here too.
 661           Point pt = LocationFromPosition(wParam);
 662           char* defn = reinterpret_cast<char *>(lParam);
 663           AutoCompleteCancel();
 664           pt.y += vs.lineHeight;
 665           PRectangle rc = ct.CallTipStart(currentPos, pt,
 666                                           defn,
 667                                           vs.styles[STYLE_DEFAULT].fontName,
 668                                           vs.styles[STYLE_DEFAULT].sizeZoomed,
 669                                           CodePage(),
 670                                           vs.styles[STYLE_DEFAULT].characterSet,
 671                                           wMain);
 672           // If the call-tip window would be out of the client
 673           // space, adjust so it displays above the text.
 674           PRectangle rcClient = GetClientRectangle();
 675           if (rc.bottom > rcClient.bottom) {
 676 #ifdef __WXGTK__
 677               int offset = int(vs.lineHeight * 1.25)  + rc.Height();
 678 #else
 679               int offset = vs.lineHeight + rc.Height();
 680 #endif
 681               rc.top -= offset;
 682               rc.bottom -= offset;
 683           }
 684           // Now display the window.
 685           CreateCallTipWindow(rc);
 686           ct.wCallTip.SetPositionRelative(rc, wMain);
 687           ct.wCallTip.Show();
 688           break;
 689       }
 690
 691 #ifdef SCI_LEXER
 692       case SCI_LOADLEXERLIBRARY:
 693             LexerManager::GetInstance()->Load((const char*)lParam);
 694             break;
 695 #endif
 696
 697       default:
 698           return ScintillaBase::WndProc(iMessage, wParam, lParam);
 699       }
 700       return 0;
 701 }
 702
 703
 704
 705 //----------------------------------------------------------------------
 706 // Event delegates
 707
 708 void ScintillaWX::DoPaint(wxDC* dc, wxRect rect) {
 709
 710     paintState = painting;
 711     Surface* surfaceWindow = Surface::Allocate();
 712     surfaceWindow->Init(dc, wMain.GetID());
 713     rcPaint = PRectangleFromwxRect(rect);
 714     PRectangle rcClient = GetClientRectangle();
 715     paintingAllText = rcPaint.Contains(rcClient);
 716
 717     ClipChildren(*dc, rcPaint);
 718     Paint(surfaceWindow, rcPaint);
 719
 720     delete surfaceWindow;
 721     if (paintState == paintAbandoned) {
 722         // Painting area was insufficient to cover new styling or brace
 723         // highlight positions
 724         FullPaint();
 725     }
 726     paintState = notPainting;
 727 }
 728
 729
 730 void ScintillaWX::DoHScroll(int type, int pos) {
 731     int xPos = xOffset;
 732     PRectangle rcText = GetTextRectangle();
 733     int pageWidth = rcText.Width() * 2 / 3;
 734     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 735         xPos -= H_SCROLL_STEP;
 736     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 737         xPos += H_SCROLL_STEP;
 738     else if (type == wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 739         xPos -= pageWidth;
 740     else if (type == wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN) {
 741         xPos += pageWidth;
 742         if (xPos > scrollWidth - rcText.Width()) {
 743             xPos = scrollWidth - rcText.Width();
 744         }
 745     }
 746     else if (type == wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 747         xPos = 0;
 748     else if (type == wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 749         xPos = scrollWidth;
 750     else if (type == wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 751         xPos = pos;
 752
 753     HorizontalScrollTo(xPos);
 754 }
 755
 756 void ScintillaWX::DoVScroll(int type, int pos) {
 757     int topLineNew = topLine;
 758     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 759         topLineNew -= 1;
 760     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 761         topLineNew += 1;
 762     else if (type ==  wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 763         topLineNew -= LinesToScroll();
 764     else if (type ==  wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN)
 765         topLineNew += LinesToScroll();
 766     else if (type ==  wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 767         topLineNew = 0;
 768     else if (type ==  wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 769         topLineNew = MaxScrollPos();
 770     else if (type ==   wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 771         topLineNew = pos;
 772
 773     ScrollTo(topLineNew);
 774 }
 775
 776 void ScintillaWX::DoMouseWheel(int rotation, int delta,
 777                                int linesPerAction, int ctrlDown,
 778                                bool isPageScroll ) {
 779     int topLineNew = topLine;
 780     int lines;
 781
 782     if (ctrlDown) {  // Zoom the fonts if Ctrl key down
 783         if (rotation < 0) {
 784             KeyCommand(SCI_ZOOMIN);
 785         }
 786         else {
 787             KeyCommand(SCI_ZOOMOUT);
 788         }
 789     }
 790     else { // otherwise just scroll the window
 791         if ( !delta )
 792             delta = 120;
 793         wheelRotation += rotation;
 794         lines = wheelRotation / delta;
 795         wheelRotation -= lines * delta;
 796         if (lines != 0) {
 797             if (isPageScroll)
 798                 lines = lines * LinesOnScreen();  // lines is either +1 or -1
 799             else
 800                 lines *= linesPerAction;
 801             topLineNew -= lines;
 802             ScrollTo(topLineNew);
 803         }
 804     }
 805 }
 806
 807
 808 void ScintillaWX::DoSize(int WXUNUSED(width), int WXUNUSED(height)) {
 809     ChangeSize();
 810 }
 811
 812 void ScintillaWX::DoLoseFocus(){
 813     focusEvent = true;
 814     SetFocusState(false);
 815     focusEvent = false;
 816     DestroySystemCaret();
 817 }
 818
 819 void ScintillaWX::DoGainFocus(){
 820     focusEvent = true;
 821     SetFocusState(true);
 822     focusEvent = false;
 823     DestroySystemCaret();
 824     CreateSystemCaret();
 825 }
 826
 827 void ScintillaWX::DoSysColourChange() {
 828     InvalidateStyleData();
 829 }
 830
 831 void ScintillaWX::DoLeftButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt) {
 832     ButtonDown(pt, curTime, shift, ctrl, alt);
 833 }
 834
 835 void ScintillaWX::DoLeftButtonUp(Point pt, unsigned int curTime, bool ctrl) {
 836     ButtonUp(pt, curTime, ctrl);
 837 #if wxUSE_DRAG_AND_DROP
 838     if (startDragTimer->IsRunning()) {
 839         startDragTimer->Stop();
 840         SetDragPosition(invalidPosition);
 841         SetEmptySelection(PositionFromLocation(pt));
 842         ShowCaretAtCurrentPosition();
 843     }
 844 #endif // wxUSE_DRAG_AND_DROP
 845 }
 846
 847 void ScintillaWX::DoLeftButtonMove(Point pt) {
 848     ButtonMove(pt);
 849 }
 850
 851 #ifdef __WXGTK__
 852 void ScintillaWX::DoMiddleButtonUp(Point pt) {
 853     // Set the current position to the mouse click point and
 854     // then paste in the PRIMARY selection, if any.  wxGTK only.
 855     int newPos = PositionFromLocation(pt);
 856     MovePositionTo(newPos, noSel, true);
 857
 858     pdoc->BeginUndoAction();
 859     wxTextDataObject data;
 860     bool gotData = false;
 861     if (wxTheClipboard->Open()) {
 862         wxTheClipboard->UsePrimarySelection(true);
 863         gotData = wxTheClipboard->GetData(data);
 864         wxTheClipboard->UsePrimarySelection(false);
 865         wxTheClipboard->Close();
 866     }
 867     if (gotData) {
 868         wxString   text = wxTextBuffer::Translate(data.GetText(),
 869                                                   wxConvertEOLMode(pdoc->eolMode));
 870         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 871         int        len = strlen(buf);
 872         pdoc->InsertString(currentPos, buf, len);
 873         SetEmptySelection(currentPos + len);
 874     }
 875     pdoc->EndUndoAction();
 876     NotifyChange();
 877     Redraw();
 878
 879     ShowCaretAtCurrentPosition();
 880     EnsureCaretVisible();
 881 }
 882 #else
 883 void ScintillaWX::DoMiddleButtonUp(Point WXUNUSED(pt)) {
 884 }
 885 #endif
 886
 887
 888 void ScintillaWX::DoAddChar(int key) {
 889 #if wxUSE_UNICODE
 890     wxChar wszChars[2];
 891     wszChars[0] = (wxChar)key;
 892     wszChars[1] = 0;
 893     wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(wszChars);
 894     AddCharUTF((char*)buf.data(), strlen(buf));
 895 #else
 896     AddChar((char)key);
 897 #endif
 898 }
 899
 900
 901 int  ScintillaWX::DoKeyDown(const wxKeyEvent& evt, bool* consumed)
 902 {
 903     int key = evt.GetKeyCode();
 904     bool shift = evt.ShiftDown(),
 905          ctrl  = evt.ControlDown(),
 906          alt   = evt.AltDown();
 907
 908     if (ctrl && key >= 1 && key <= 26 && key != WXK_BACK)
 909         key += 'A' - 1;
 910
 911     switch (key) {
 912     case WXK_DOWN:              key = SCK_DOWN;     break;
 913     case WXK_UP:                key = SCK_UP;       break;
 914     case WXK_LEFT:              key = SCK_LEFT;     break;
 915     case WXK_RIGHT:             key = SCK_RIGHT;    break;
 916     case WXK_HOME:              key = SCK_HOME;     break;
 917     case WXK_END:               key = SCK_END;      break;
 918     case WXK_PAGEUP:            key = SCK_PRIOR;    break;
 919     case WXK_PAGEDOWN:          key = SCK_NEXT;     break;
 920     case WXK_NUMPAD_DOWN:       key = SCK_DOWN;     break;
 921     case WXK_NUMPAD_UP:         key = SCK_UP;       break;
 922     case WXK_NUMPAD_LEFT:       key = SCK_LEFT;     break;
 923     case WXK_NUMPAD_RIGHT:      key = SCK_RIGHT;    break;
 924     case WXK_NUMPAD_HOME:       key = SCK_HOME;     break;
 925     case WXK_NUMPAD_END:        key = SCK_END;      break;
 926     case WXK_NUMPAD_PAGEUP:     key = SCK_PRIOR;    break;
 927     case WXK_NUMPAD_PAGEDOWN:   key = SCK_NEXT;     break;
 928     case WXK_NUMPAD_DELETE:     key = SCK_DELETE;   break;
 929     case WXK_NUMPAD_INSERT:     key = SCK_INSERT;   break;
 930     case WXK_DELETE:            key = SCK_DELETE;   break;
 931     case WXK_INSERT:            key = SCK_INSERT;   break;
 932     case WXK_ESCAPE:            key = SCK_ESCAPE;   break;
 933     case WXK_BACK:              key = SCK_BACK;     break;
 934     case WXK_TAB:               key = SCK_TAB;      break;
 935     case WXK_NUMPAD_ENTER:      // fall through
 936     case WXK_RETURN:            key = SCK_RETURN;   break;
 937     case WXK_ADD:               // fall through
 938     case WXK_NUMPAD_ADD:        key = SCK_ADD;      break;
 939     case WXK_SUBTRACT:          // fall through
 940     case WXK_NUMPAD_SUBTRACT:   key = SCK_SUBTRACT; break;
 941     case WXK_DIVIDE:            // fall through
 942     case WXK_NUMPAD_DIVIDE:     key = SCK_DIVIDE;   break;
 943     case WXK_CONTROL:           key = 0; break;
 944     case WXK_ALT:               key = 0; break;
 945     case WXK_SHIFT:             key = 0; break;
 946     case WXK_MENU:              key = 0; break;
 947     }
 948
 949 #ifdef __WXMAC__
 950     if ( evt.MetaDown() ) {
 951         // check for a few common Mac Meta-key combos and remap them to Ctrl
 952         // for Scintilla
 953         switch ( key ) {
 954         case 'Z':       // Undo
 955         case 'X':       // Cut
 956         case 'C':       // Copy
 957         case 'V':       // Paste
 958         case 'A':       // Select All
 959             ctrl = true;
 960             break;
 961         }
 962     }
 963 #endif
 964
 965     int rv = KeyDown(key, shift, ctrl, alt, consumed);
 966
 967     if (key)
 968         return rv;
 969     else
 970         return 1;
 971 }
 972
 973
 974 void ScintillaWX::DoCommand(int ID) {
 975     Command(ID);
 976 }
 977
 978
 979 void ScintillaWX::DoContextMenu(Point pt) {
 980     if (displayPopupMenu)
 981         ContextMenu(pt);
 982 }
 983
 984 void ScintillaWX::DoOnListBox() {
 985     AutoCompleteCompleted();
 986 }
 987
 988
 989 void ScintillaWX::DoOnIdle(wxIdleEvent& evt) {
 990
 991     if ( Idle() )
 992         evt.RequestMore();
 993     else
 994         SetIdle(false);
 995 }
 996
 997 //----------------------------------------------------------------------
 998
 999 #if wxUSE_DRAG_AND_DROP
1000 bool ScintillaWX::DoDropText(long x, long y, const wxString& data) {
1001     SetDragPosition(invalidPosition);
1002
1003     wxString text = wxTextBuffer::Translate(data,
1004                                             wxConvertEOLMode(pdoc->eolMode));
1005
1006     // Send an event to allow the drag details to be changed
1007     wxStyledTextEvent evt(wxEVT_STC_DO_DROP, stc->GetId());
1008     evt.SetEventObject(stc);
1009     evt.SetDragResult(dragResult);
1010     evt.SetX(x);
1011     evt.SetY(y);
1012     evt.SetPosition(PositionFromLocation(Point(x,y)));
1013     evt.SetDragText(text);
1014     stc->GetEventHandler()->ProcessEvent(evt);
1015
1016     dragResult = evt.GetDragResult();
1017     if (dragResult == wxDragMove || dragResult == wxDragCopy) {
1018         DropAt(evt.GetPosition(),
1019                wx2stc(evt.GetDragText()),
1020                dragResult == wxDragMove,
1021                false); // TODO: rectangular?
1022         return true;
1023     }
1024     return false;
1025 }
1026
1027
1028 wxDragResult ScintillaWX::DoDragEnter(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxDragResult def) {
1029     dragResult = def;
1030     return dragResult;
1031 }
1032
1033
1034 wxDragResult ScintillaWX::DoDragOver(wxCoord x, wxCoord y, wxDragResult def) {
1035     SetDragPosition(PositionFromLocation(Point(x, y)));
1036
1037     // Send an event to allow the drag result to be changed
1038     wxStyledTextEvent evt(wxEVT_STC_DRAG_OVER, stc->GetId());
1039     evt.SetEventObject(stc);
1040     evt.SetDragResult(def);
1041     evt.SetX(x);
1042     evt.SetY(y);
1043     evt.SetPosition(PositionFromLocation(Point(x,y)));
1044     stc->GetEventHandler()->ProcessEvent(evt);
1045
1046     dragResult = evt.GetDragResult();
1047     return dragResult;
1048 }
1049
1050
1051 void ScintillaWX::DoDragLeave() {
1052     SetDragPosition(invalidPosition);
1053 }
1054 #endif // wxUSE_DRAG_AND_DROP
1055 //----------------------------------------------------------------------
1056
1057 // Force the whole window to be repainted
1058 void ScintillaWX::FullPaint() {
1059 #ifndef __WXMAC__
1060     stc->Refresh(false);
1061 #endif
1062     stc->Update();
1063 }
1064
1065
1066 void ScintillaWX::DoScrollToLine(int line) {
1067     ScrollTo(line);
1068 }
1069
1070
1071 void ScintillaWX::DoScrollToColumn(int column) {
1072     HorizontalScrollTo(column * vs.spaceWidth);
1073 }
1074
1075 // wxGTK doesn't appear to need this explicit clipping code any longer, but I
1076 // will leave it here commented out for a while just in case...
1077 void ScintillaWX::ClipChildren(wxDC& WXUNUSED(dc), PRectangle WXUNUSED(rect))
1078 {
1079 //     wxRegion rgn(wxRectFromPRectangle(rect));
1080 //     if (ac.Active()) {
1081 //         wxRect childRect = ((wxWindow*)ac.lb->GetID())->GetRect();
1082 //         rgn.Subtract(childRect);
1083 //     }
1084 //     if (ct.inCallTipMode) {
1085 //         wxSTCCallTip* tip = (wxSTCCallTip*)ct.wCallTip.GetID();
1086 //         wxRect childRect = tip->GetRect();
1087 // #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
1088 //         childRect.SetPosition(tip->GetMyPosition());
1089 // #endif
1090 //         rgn.Subtract(childRect);
1091 //     }
1092 //     dc.SetClippingRegion(rgn);
1093 }
1094
1095
1096 void ScintillaWX::SetUseAntiAliasing(bool useAA) {
1097     vs.extraFontFlag = useAA;
1098     InvalidateStyleRedraw();
1099 }
1100
1101 bool ScintillaWX::GetUseAntiAliasing() {
1102     return vs.extraFontFlag;
1103 }
1104
1105 //----------------------------------------------------------------------
1106 //----------------------------------------------------------------------