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 // For compilers that support precompilation, includes "wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21     #pragma hdrstop
  22 #endif
  23
  24 #if wxUSE_STC
  25
  26 #ifndef WX_PRECOMP
  27     #include "wx/scrolbar.h"
  28     #include "wx/menu.h"
  29 #endif // WX_PRECOMP
  30
  31 #include "wx/textbuf.h"
  32 #include "wx/dataobj.h"
  33 #include "wx/clipbrd.h"
  34 #include "wx/dnd.h"
  35
  36 #include "ScintillaWX.h"
  37 #include "ExternalLexer.h"
  38 #include "wx/stc/stc.h"
  39 #include "PlatWX.h"
  40
  41 #ifdef __WXMSW__
  42     // GetHwndOf()
  43     #include "wx/msw/private.h"
  44 #endif
  45
  46 //----------------------------------------------------------------------
  47 // Helper classes
  48
  49 class wxSTCTimer : public wxTimer {
  50 public:
  51     wxSTCTimer(ScintillaWX* swx) {
  52         m_swx = swx;
  53     }
  54
  55     void Notify() {
  56         m_swx->DoTick();
  57     }
  58
  59 private:
  60     ScintillaWX* m_swx;
  61 };
  62
  63
  64 #if wxUSE_DRAG_AND_DROP
  65 class wxStartDragTimer : public wxTimer {
  66 public:
  67     wxStartDragTimer(ScintillaWX* swx) {
  68         m_swx = swx;
  69     }
  70
  71     void Notify() {
  72         m_swx->DoStartDrag();
  73     }
  74
  75 private:
  76     ScintillaWX* m_swx;
  77 };
  78
  79
  80 bool wxSTCDropTarget::OnDropText(wxCoord x, wxCoord y, const wxString& data) {
  81     return m_swx->DoDropText(x, y, data);
  82 }
  83
  84 wxDragResult  wxSTCDropTarget::OnEnter(wxCoord x, wxCoord y, wxDragResult def) {
  85     return m_swx->DoDragEnter(x, y, def);
  86 }
  87
  88 wxDragResult  wxSTCDropTarget::OnDragOver(wxCoord x, wxCoord y, wxDragResult def) {
  89     return m_swx->DoDragOver(x, y, def);
  90 }
  91
  92 void  wxSTCDropTarget::OnLeave() {
  93     m_swx->DoDragLeave();
  94 }
  95 #endif // wxUSE_DRAG_AND_DROP
  96
  97
  98 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
  99 #include "wx/popupwin.h"
 100 #define wxSTCCallTipBase wxPopupWindow
 101 #define param2  wxBORDER_NONE  // popup's 2nd param is flags
 102 #else
 103 #include "wx/frame.h"
 104 #define wxSTCCallTipBase wxFrame
 105 #define param2 -1 // wxWindow's 2nd param is ID
 106 #endif
 107
 108 #include "wx/dcbuffer.h"
 109
 110 class wxSTCCallTip : public wxSTCCallTipBase {
 111 public:
 112     wxSTCCallTip(wxWindow* parent, CallTip* ct, ScintillaWX* swx) :
 113 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
 114         wxSTCCallTipBase(parent, wxBORDER_NONE),
 115 #else
 116         wxSTCCallTipBase(parent, -1, wxEmptyString, wxDefaultPosition, wxDefaultSize,
 117                          wxFRAME_NO_TASKBAR
 118                          | wxFRAME_FLOAT_ON_PARENT
 119                          | wxBORDER_NONE
 120 #ifdef __WXMAC__
 121                          | wxPOPUP_WINDOW
 122 #endif
 123             ),
 124 #endif
 125           m_ct(ct), m_swx(swx), m_cx(wxDefaultCoord), m_cy(wxDefaultCoord)
 126         {
 127         }
 128
 129     ~wxSTCCallTip() {
 130 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP && defined(__WXGTK__)
 131         wxRect rect = GetRect();
 132         rect.x = m_cx;
 133         rect.y = m_cy;
 134         GetParent()->Refresh(false, &rect);
 135 #endif
 136     }
 137
 138     bool AcceptsFocus() const { return false; }
 139
 140     void OnPaint(wxPaintEvent& WXUNUSED(evt))
 141     {
 142         wxBufferedPaintDC dc(this);
 143         Surface* surfaceWindow = Surface::Allocate();
 144         surfaceWindow->Init(&dc, m_ct->wDraw.GetID());
 145         m_ct->PaintCT(surfaceWindow);
 146         surfaceWindow->Release();
 147         delete surfaceWindow;
 148     }
 149
 150     void OnFocus(wxFocusEvent& event)
 151     {
 152         GetParent()->SetFocus();
 153         event.Skip();
 154     }
 155
 156     void OnLeftDown(wxMouseEvent& event)
 157     {
 158         wxPoint pt = event.GetPosition();
 159         Point p(pt.x, pt.y);
 160         m_ct->MouseClick(p);
 161         m_swx->CallTipClick();
 162     }
 163
 164     virtual void DoSetSize(int x, int y,
 165                            int width, int height,
 166                            int sizeFlags = wxSIZE_AUTO)
 167     {
 168         // convert coords to screen coords since we're a top-level window
 169         if (x != wxDefaultCoord) {
 170             m_cx = x;
 171             GetParent()->ClientToScreen(&x, NULL);
 172         }
 173         if (y != wxDefaultCoord) {
 174             m_cy = y;
 175             GetParent()->ClientToScreen(NULL, &y);
 176         }
 177         wxSTCCallTipBase::DoSetSize(x, y, width, height, sizeFlags);
 178     }
 179
 180 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
 181 #else
 182     virtual bool Show( bool show = true )
 183     {
 184         // Although we're a frame, we always want the parent to be active, so
 185         // raise it whenever we get shown.
 186         bool rv = wxSTCCallTipBase::Show(show);
 187         if (rv && show)
 188         {
 189             wxTopLevelWindow *frame = wxDynamicCast(
 190                 wxGetTopLevelParent(GetParent()), wxTopLevelWindow);
 191             if (frame)
 192                 frame->Raise();
 193         }
 194         return rv;
 195     }
 196 #endif
 197
 198     wxPoint GetMyPosition()
 199     {
 200         return wxPoint(m_cx, m_cy);
 201     }
 202
 203 private:
 204     CallTip*      m_ct;
 205     ScintillaWX*  m_swx;
 206     int           m_cx, m_cy;
 207     DECLARE_EVENT_TABLE()
 208 };
 209
 210 BEGIN_EVENT_TABLE(wxSTCCallTip, wxSTCCallTipBase)
 211     EVT_PAINT(wxSTCCallTip::OnPaint)
 212     EVT_SET_FOCUS(wxSTCCallTip::OnFocus)
 213     EVT_LEFT_DOWN(wxSTCCallTip::OnLeftDown)
 214 END_EVENT_TABLE()
 215
 216
 217 //----------------------------------------------------------------------
 218
 219 #if wxUSE_DATAOBJ
 220 static wxTextFileType wxConvertEOLMode(int scintillaMode)
 221 {
 222     wxTextFileType type;
 223
 224     switch (scintillaMode) {
 225         case wxSTC_EOL_CRLF:
 226             type = wxTextFileType_Dos;
 227             break;
 228
 229         case wxSTC_EOL_CR:
 230             type = wxTextFileType_Mac;
 231             break;
 232
 233         case wxSTC_EOL_LF:
 234             type = wxTextFileType_Unix;
 235             break;
 236
 237         default:
 238             type = wxTextBuffer::typeDefault;
 239             break;
 240     }
 241     return type;
 242 }
 243 #endif // wxUSE_DATAOBJ
 244
 245
 246 //----------------------------------------------------------------------
 247 // Constructor/Destructor
 248
 249
 250 ScintillaWX::ScintillaWX(wxStyledTextCtrl* win) {
 251     capturedMouse = false;
 252     focusEvent = false;
 253     wMain = win;
 254     stc   = win;
 255     wheelRotation = 0;
 256     Initialise();
 257 #ifdef __WXMSW__
 258     sysCaretBitmap = 0;
 259     sysCaretWidth = 0;
 260     sysCaretHeight = 0;
 261 #endif
 262 #if wxUSE_DRAG_AND_DROP
 263     startDragTimer = new wxStartDragTimer(this);
 264 #endif // wxUSE_DRAG_AND_DROP
 265 }
 266
 267
 268 ScintillaWX::~ScintillaWX() {
 269 #if wxUSE_DRAG_AND_DROP
 270     delete startDragTimer;
 271 #endif // wxUSE_DRAG_AND_DROP
 272     Finalise();
 273 }
 274
 275 //----------------------------------------------------------------------
 276 // base class virtuals
 277
 278
 279 void ScintillaWX::Initialise() {
 280     //ScintillaBase::Initialise();
 281 #if wxUSE_DRAG_AND_DROP
 282     dropTarget = new wxSTCDropTarget;
 283     dropTarget->SetScintilla(this);
 284     stc->SetDropTarget(dropTarget);
 285 #endif // wxUSE_DRAG_AND_DROP
 286 #ifdef __WXMAC__
 287     vs.extraFontFlag = false;  // UseAntiAliasing
 288 #else
 289     vs.extraFontFlag = true;   // UseAntiAliasing
 290 #endif
 291 }
 292
 293
 294 void ScintillaWX::Finalise() {
 295     ScintillaBase::Finalise();
 296     SetTicking(false);
 297     SetIdle(false);
 298     DestroySystemCaret();
 299 }
 300
 301
 302 void ScintillaWX::StartDrag() {
 303 #if wxUSE_DRAG_AND_DROP
 304     // We defer the starting of the DnD, otherwise the LeftUp of a normal
 305     // click could be lost and the STC will think it is doing a DnD when the
 306     // user just wanted a normal click.
 307     startDragTimer->Start(200, true);
 308 #endif // wxUSE_DRAG_AND_DROP
 309 }
 310
 311 void ScintillaWX::DoStartDrag() {
 312 #if wxUSE_DRAG_AND_DROP
 313     wxString dragText = stc2wx(drag.s, drag.len);
 314
 315     // Send an event to allow the drag text to be changed
 316     wxStyledTextEvent evt(wxEVT_STC_START_DRAG, stc->GetId());
 317     evt.SetEventObject(stc);
 318     evt.SetDragText(dragText);
 319     evt.SetDragAllowMove(true);
 320     evt.SetPosition(wxMin(stc->GetSelectionStart(),
 321                           stc->GetSelectionEnd()));
 322     stc->GetEventHandler()->ProcessEvent(evt);
 323     dragText = evt.GetDragText();
 324
 325     if (dragText.length()) {
 326         wxDropSource        source(stc);
 327         wxTextDataObject    data(dragText);
 328         wxDragResult        result;
 329
 330         source.SetData(data);
 331         dropWentOutside = true;
 332         result = source.DoDragDrop(evt.GetDragAllowMove());
 333         if (result == wxDragMove && dropWentOutside)
 334             ClearSelection();
 335         inDragDrop = false;
 336         SetDragPosition(invalidPosition);
 337     }
 338 #endif // wxUSE_DRAG_AND_DROP
 339 }
 340
 341
 342 bool ScintillaWX::SetIdle(bool on) {
 343     if (idler.state != on) {
 344         // connect or disconnect the EVT_IDLE handler
 345         if (on)
 346             stc->Connect(wxID_ANY, wxEVT_IDLE,
 347                          (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 348         else
 349             stc->Disconnect(wxID_ANY, wxEVT_IDLE,
 350                             (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 351         idler.state = on;
 352     }
 353     return idler.state;
 354 }
 355
 356
 357 void ScintillaWX::SetTicking(bool on) {
 358     wxSTCTimer* steTimer;
 359     if (timer.ticking != on) {
 360         timer.ticking = on;
 361         if (timer.ticking) {
 362             steTimer = new wxSTCTimer(this);
 363             steTimer->Start(timer.tickSize);
 364             timer.tickerID = steTimer;
 365         } else {
 366             steTimer = (wxSTCTimer*)timer.tickerID;
 367             steTimer->Stop();
 368             delete steTimer;
 369             timer.tickerID = 0;
 370         }
 371     }
 372     timer.ticksToWait = caret.period;
 373 }
 374
 375
 376 void ScintillaWX::SetMouseCapture(bool on) {
 377     if (mouseDownCaptures) {
 378         if (on && !capturedMouse)
 379             stc->CaptureMouse();
 380         else if (!on && capturedMouse && stc->HasCapture())
 381             stc->ReleaseMouse();
 382         capturedMouse = on;
 383     }
 384 }
 385
 386
 387 bool ScintillaWX::HaveMouseCapture() {
 388     return capturedMouse;
 389 }
 390
 391
 392 void ScintillaWX::ScrollText(int linesToMove) {
 393     int dy = vs.lineHeight * (linesToMove);
 394     stc->ScrollWindow(0, dy);
 395     stc->Update();
 396 }
 397
 398 void ScintillaWX::SetVerticalScrollPos() {
 399     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 400         stc->SetScrollPos(wxVERTICAL, topLine);
 401     }
 402     else { // otherwise use the one that's been given to us
 403         stc->m_vScrollBar->SetThumbPosition(topLine);
 404     }
 405 }
 406
 407 void ScintillaWX::SetHorizontalScrollPos() {
 408     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 409         stc->SetScrollPos(wxHORIZONTAL, xOffset);
 410     }
 411     else { // otherwise use the one that's been given to us
 412         stc->m_hScrollBar->SetThumbPosition(xOffset);
 413     }
 414 }
 415
 416
 417 const int H_SCROLL_STEP = 20;
 418
 419 bool ScintillaWX::ModifyScrollBars(int nMax, int nPage) {
 420     bool modified = false;
 421
 422     int vertEnd = nMax;
 423     if (!verticalScrollBarVisible)
 424         vertEnd = 0;
 425
 426     // Check the vertical scrollbar
 427     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 428         int  sbMax    = stc->GetScrollRange(wxVERTICAL);
 429         int  sbThumb  = stc->GetScrollThumb(wxVERTICAL);
 430         int  sbPos    = stc->GetScrollPos(wxVERTICAL);
 431         if (sbMax != vertEnd || sbThumb != nPage) {
 432             stc->SetScrollbar(wxVERTICAL, sbPos, nPage, vertEnd+1);
 433             modified = true;
 434         }
 435     }
 436     else { // otherwise use the one that's been given to us
 437         int  sbMax    = stc->m_vScrollBar->GetRange();
 438         int  sbPage   = stc->m_vScrollBar->GetPageSize();
 439         int  sbPos    = stc->m_vScrollBar->GetThumbPosition();
 440         if (sbMax != vertEnd || sbPage != nPage) {
 441             stc->m_vScrollBar->SetScrollbar(sbPos, nPage, vertEnd+1, nPage);
 442             modified = true;
 443         }
 444     }
 445
 446
 447     // Check the horizontal scrollbar
 448     PRectangle rcText = GetTextRectangle();
 449     int horizEnd = scrollWidth;
 450     if (horizEnd < 0)
 451         horizEnd = 0;
 452     if (!horizontalScrollBarVisible || (wrapState != eWrapNone))
 453         horizEnd = 0;
 454     int pageWidth = rcText.Width();
 455
 456     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 457         int sbMax    = stc->GetScrollRange(wxHORIZONTAL);
 458         int sbThumb  = stc->GetScrollThumb(wxHORIZONTAL);
 459         int sbPos    = stc->GetScrollPos(wxHORIZONTAL);
 460         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 461             stc->SetScrollbar(wxHORIZONTAL, sbPos, pageWidth, horizEnd);
 462             modified = true;
 463             if (scrollWidth < pageWidth) {
 464                 HorizontalScrollTo(0);
 465             }
 466         }
 467     }
 468     else { // otherwise use the one that's been given to us
 469         int sbMax    = stc->m_hScrollBar->GetRange();
 470         int sbThumb  = stc->m_hScrollBar->GetPageSize();
 471         int sbPos    = stc->m_hScrollBar->GetThumbPosition();
 472         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 473             stc->m_hScrollBar->SetScrollbar(sbPos, pageWidth, horizEnd, pageWidth);
 474             modified = true;
 475             if (scrollWidth < pageWidth) {
 476                 HorizontalScrollTo(0);
 477             }
 478         }
 479     }
 480
 481     return modified;
 482 }
 483
 484
 485 void ScintillaWX::NotifyChange() {
 486     stc->NotifyChange();
 487 }
 488
 489
 490 void ScintillaWX::NotifyParent(SCNotification scn) {
 491     stc->NotifyParent(&scn);
 492 }
 493
 494
 495 // This method is overloaded from ScintillaBase in order to prevent the
 496 // AutoComplete window from being destroyed when it gets the focus.  There is
 497 // a side effect that the AutoComp will also not be destroyed when switching
 498 // to another window, but I think that is okay.
 499 void ScintillaWX::CancelModes() {
 500     if (! focusEvent)
 501         AutoCompleteCancel();
 502     ct.CallTipCancel();
 503     Editor::CancelModes();
 504 }
 505
 506
 507
 508 void ScintillaWX::Copy() {
 509     if (currentPos != anchor) {
 510         SelectionText st;
 511         CopySelectionRange(&st);
 512         CopyToClipboard(st);
 513     }
 514 }
 515
 516
 517 void ScintillaWX::Paste() {
 518     pdoc->BeginUndoAction();
 519     ClearSelection();
 520
 521 #if wxUSE_DATAOBJ
 522     wxTextDataObject data;
 523     bool gotData = false;
 524
 525     wxTheClipboard->UsePrimarySelection(false);
 526     if (wxTheClipboard->Open()) {
 527         gotData = wxTheClipboard->GetData(data);
 528         wxTheClipboard->Close();
 529     }
 530     if (gotData) {
 531         wxString   text = wxTextBuffer::Translate(data.GetText(),
 532                                                   wxConvertEOLMode(pdoc->eolMode));
 533         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 534
 535 #if wxUSE_UNICODE
 536         // free up the old character buffer in case the text is real big
 537         data.SetText(wxEmptyString);
 538         text = wxEmptyString;
 539 #endif
 540         int len = strlen(buf);
 541         pdoc->InsertString(currentPos, buf, len);
 542         SetEmptySelection(currentPos + len);
 543     }
 544 #endif // wxUSE_DATAOBJ
 545
 546     pdoc->EndUndoAction();
 547     NotifyChange();
 548     Redraw();
 549 }
 550
 551
 552 void ScintillaWX::CopyToClipboard(const SelectionText& st) {
 553 #if wxUSE_CLIPBOARD
 554     wxTheClipboard->UsePrimarySelection(false);
 555     if (wxTheClipboard->Open()) {
 556         wxString text = wxTextBuffer::Translate(stc2wx(st.s, st.len-1));
 557         wxTheClipboard->SetData(new wxTextDataObject(text));
 558         wxTheClipboard->Close();
 559     }
 560 #else
 561     wxUnusedVar(st);
 562 #endif // wxUSE_CLIPBOARD
 563 }
 564
 565
 566 bool ScintillaWX::CanPaste() {
 567 #if wxUSE_CLIPBOARD
 568     bool canPaste = false;
 569     bool didOpen;
 570
 571     if (Editor::CanPaste()) {
 572         wxTheClipboard->UsePrimarySelection(false);
 573         didOpen = !wxTheClipboard->IsOpened();
 574         if ( didOpen )
 575             wxTheClipboard->Open();
 576
 577         if (wxTheClipboard->IsOpened()) {
 578             canPaste = wxTheClipboard->IsSupported(wxUSE_UNICODE ? wxDF_UNICODETEXT : wxDF_TEXT);
 579             if (didOpen)
 580                 wxTheClipboard->Close();
 581         }
 582     }
 583     return canPaste;
 584 #else
 585     return false;
 586 #endif // wxUSE_CLIPBOARD
 587 }
 588
 589 void ScintillaWX::CreateCallTipWindow(PRectangle) {
 590     if (! ct.wCallTip.Created() ) {
 591         ct.wCallTip = new wxSTCCallTip(stc, &ct, this);
 592         ct.wDraw = ct.wCallTip;
 593     }
 594 }
 595
 596
 597 void ScintillaWX::AddToPopUp(const char *label, int cmd, bool enabled) {
 598     if (!label[0])
 599         ((wxMenu*)popup.GetID())->AppendSeparator();
 600     else
 601         ((wxMenu*)popup.GetID())->Append(cmd, wxGetTranslation(stc2wx(label)));
 602
 603     if (!enabled)
 604         ((wxMenu*)popup.GetID())->Enable(cmd, enabled);
 605 }
 606
 607
 608 // This is called by the Editor base class whenever something is selected.
 609 // For wxGTK we can put this text in the primary selection and then other apps
 610 // can paste with the middle button.
 611 void ScintillaWX::ClaimSelection() {
 612 #ifdef __WXGTK__
 613     // Put the selected text in the PRIMARY selection
 614     if (currentPos != anchor) {
 615         SelectionText st;
 616         CopySelectionRange(&st);
 617         wxTheClipboard->UsePrimarySelection(true);
 618         if (wxTheClipboard->Open()) {
 619             wxString text = stc2wx(st.s, st.len);
 620             wxTheClipboard->SetData(new wxTextDataObject(text));
 621             wxTheClipboard->Close();
 622         }
 623         wxTheClipboard->UsePrimarySelection(false);
 624     }
 625 #endif
 626 }
 627
 628
 629 void ScintillaWX::UpdateSystemCaret() {
 630 #ifdef __WXMSW__
 631     if (hasFocus) {
 632         if (HasCaretSizeChanged()) {
 633             DestroySystemCaret();
 634             CreateSystemCaret();
 635         }
 636         Point pos = LocationFromPosition(currentPos);
 637         ::SetCaretPos(pos.x, pos.y);
 638     }
 639 #endif
 640 }
 641
 642
 643 bool ScintillaWX::HasCaretSizeChanged() {
 644 #ifdef __WXMSW__
 645     if (( (0 != vs.caretWidth) && (sysCaretWidth != vs.caretWidth) )
 646         || (0 != vs.lineHeight) && (sysCaretHeight != vs.lineHeight)) {
 647         return true;
 648     }
 649 #endif
 650     return false;
 651 }
 652
 653 bool ScintillaWX::CreateSystemCaret() {
 654 #ifdef __WXMSW__
 655     sysCaretWidth = vs.caretWidth;
 656     if (0 == sysCaretWidth) {
 657         sysCaretWidth = 1;
 658     }
 659     sysCaretHeight = vs.lineHeight;
 660     int bitmapSize = (((sysCaretWidth + 15) & ~15) >> 3) * sysCaretHeight;
 661     char *bits = new char[bitmapSize];
 662     memset(bits, 0, bitmapSize);
 663     sysCaretBitmap = ::CreateBitmap(sysCaretWidth, sysCaretHeight, 1,
 664                                     1, reinterpret_cast<BYTE *>(bits));
 665     delete [] bits;
 666     BOOL retval = ::CreateCaret(GetHwndOf(stc), sysCaretBitmap,
 667                                 sysCaretWidth, sysCaretHeight);
 668     ::ShowCaret(GetHwndOf(stc));
 669     return retval != 0;
 670 #else
 671     return false;
 672 #endif
 673 }
 674
 675 bool ScintillaWX::DestroySystemCaret() {
 676 #ifdef __WXMSW__
 677     ::HideCaret(GetHwndOf(stc));
 678     BOOL retval = ::DestroyCaret();
 679     if (sysCaretBitmap) {
 680         ::DeleteObject(sysCaretBitmap);
 681         sysCaretBitmap = 0;
 682     }
 683     return retval != 0;
 684 #else
 685     return false;
 686 #endif
 687 }
 688
 689
 690 //----------------------------------------------------------------------
 691
 692
 693 sptr_t ScintillaWX::DefWndProc(unsigned int /*iMessage*/, uptr_t /*wParam*/, sptr_t /*lParam*/) {
 694     return 0;
 695 }
 696
 697 sptr_t ScintillaWX::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
 698       switch (iMessage) {
 699       case SCI_CALLTIPSHOW: {
 700           // NOTE: This is copied here from scintilla/src/ScintillaBase.cxx
 701           // because of the little tweak that needs done below for wxGTK.
 702           // When updating new versions double check that this is still
 703           // needed, and that any new code there is copied here too.
 704           Point pt = LocationFromPosition(wParam);
 705           char* defn = reinterpret_cast<char *>(lParam);
 706           AutoCompleteCancel();
 707           pt.y += vs.lineHeight;
 708           PRectangle rc = ct.CallTipStart(currentPos, pt,
 709                                           defn,
 710                                           vs.styles[STYLE_DEFAULT].fontName,
 711                                           vs.styles[STYLE_DEFAULT].sizeZoomed,
 712                                           CodePage(),
 713                                           vs.styles[STYLE_DEFAULT].characterSet,
 714                                           wMain);
 715           // If the call-tip window would be out of the client
 716           // space, adjust so it displays above the text.
 717           PRectangle rcClient = GetClientRectangle();
 718           if (rc.bottom > rcClient.bottom) {
 719 #ifdef __WXGTK__
 720               int offset = int(vs.lineHeight * 1.25)  + rc.Height();
 721 #else
 722               int offset = vs.lineHeight + rc.Height();
 723 #endif
 724               rc.top -= offset;
 725               rc.bottom -= offset;
 726           }
 727           // Now display the window.
 728           CreateCallTipWindow(rc);
 729           ct.wCallTip.SetPositionRelative(rc, wMain);
 730           ct.wCallTip.Show();
 731           break;
 732       }
 733
 734 #ifdef SCI_LEXER
 735       case SCI_LOADLEXERLIBRARY:
 736             LexerManager::GetInstance()->Load((const char*)lParam);
 737             break;
 738 #endif
 739
 740       default:
 741           return ScintillaBase::WndProc(iMessage, wParam, lParam);
 742       }
 743       return 0;
 744 }
 745
 746
 747
 748 //----------------------------------------------------------------------
 749 // Event delegates
 750
 751 void ScintillaWX::DoPaint(wxDC* dc, wxRect rect) {
 752
 753     paintState = painting;
 754     Surface* surfaceWindow = Surface::Allocate();
 755     surfaceWindow->Init(dc, wMain.GetID());
 756     rcPaint = PRectangleFromwxRect(rect);
 757     PRectangle rcClient = GetClientRectangle();
 758     paintingAllText = rcPaint.Contains(rcClient);
 759
 760     ClipChildren(*dc, rcPaint);
 761     Paint(surfaceWindow, rcPaint);
 762
 763     delete surfaceWindow;
 764     if (paintState == paintAbandoned) {
 765         // Painting area was insufficient to cover new styling or brace
 766         // highlight positions
 767         FullPaint();
 768     }
 769     paintState = notPainting;
 770 }
 771
 772
 773 void ScintillaWX::DoHScroll(int type, int pos) {
 774     int xPos = xOffset;
 775     PRectangle rcText = GetTextRectangle();
 776     int pageWidth = rcText.Width() * 2 / 3;
 777     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 778         xPos -= H_SCROLL_STEP;
 779     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 780         xPos += H_SCROLL_STEP;
 781     else if (type == wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 782         xPos -= pageWidth;
 783     else if (type == wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN) {
 784         xPos += pageWidth;
 785         if (xPos > scrollWidth - rcText.Width()) {
 786             xPos = scrollWidth - rcText.Width();
 787         }
 788     }
 789     else if (type == wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 790         xPos = 0;
 791     else if (type == wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 792         xPos = scrollWidth;
 793     else if (type == wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 794         xPos = pos;
 795
 796     HorizontalScrollTo(xPos);
 797 }
 798
 799 void ScintillaWX::DoVScroll(int type, int pos) {
 800     int topLineNew = topLine;
 801     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 802         topLineNew -= 1;
 803     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 804         topLineNew += 1;
 805     else if (type ==  wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 806         topLineNew -= LinesToScroll();
 807     else if (type ==  wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN)
 808         topLineNew += LinesToScroll();
 809     else if (type ==  wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 810         topLineNew = 0;
 811     else if (type ==  wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 812         topLineNew = MaxScrollPos();
 813     else if (type ==   wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 814         topLineNew = pos;
 815
 816     ScrollTo(topLineNew);
 817 }
 818
 819 void ScintillaWX::DoMouseWheel(int rotation, int delta,
 820                                int linesPerAction, int ctrlDown,
 821                                bool isPageScroll ) {
 822     int topLineNew = topLine;
 823     int lines;
 824
 825     if (ctrlDown) {  // Zoom the fonts if Ctrl key down
 826         if (rotation < 0) {
 827             KeyCommand(SCI_ZOOMIN);
 828         }
 829         else {
 830             KeyCommand(SCI_ZOOMOUT);
 831         }
 832     }
 833     else { // otherwise just scroll the window
 834         if ( !delta )
 835             delta = 120;
 836         wheelRotation += rotation;
 837         lines = wheelRotation / delta;
 838         wheelRotation -= lines * delta;
 839         if (lines != 0) {
 840             if (isPageScroll)
 841                 lines = lines * LinesOnScreen();  // lines is either +1 or -1
 842             else
 843                 lines *= linesPerAction;
 844             topLineNew -= lines;
 845             ScrollTo(topLineNew);
 846         }
 847     }
 848 }
 849
 850
 851 void ScintillaWX::DoSize(int WXUNUSED(width), int WXUNUSED(height)) {
 852     ChangeSize();
 853 }
 854
 855 void ScintillaWX::DoLoseFocus(){
 856     focusEvent = true;
 857     SetFocusState(false);
 858     focusEvent = false;
 859     DestroySystemCaret();
 860 }
 861
 862 void ScintillaWX::DoGainFocus(){
 863     focusEvent = true;
 864     SetFocusState(true);
 865     focusEvent = false;
 866     DestroySystemCaret();
 867     CreateSystemCaret();
 868 }
 869
 870 void ScintillaWX::DoSysColourChange() {
 871     InvalidateStyleData();
 872 }
 873
 874 void ScintillaWX::DoLeftButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt) {
 875     ButtonDown(pt, curTime, shift, ctrl, alt);
 876 }
 877
 878 void ScintillaWX::DoLeftButtonUp(Point pt, unsigned int curTime, bool ctrl) {
 879     ButtonUp(pt, curTime, ctrl);
 880 #if wxUSE_DRAG_AND_DROP
 881     if (startDragTimer->IsRunning()) {
 882         startDragTimer->Stop();
 883         SetDragPosition(invalidPosition);
 884         SetEmptySelection(PositionFromLocation(pt));
 885         ShowCaretAtCurrentPosition();
 886     }
 887 #endif // wxUSE_DRAG_AND_DROP
 888 }
 889
 890 void ScintillaWX::DoLeftButtonMove(Point pt) {
 891     ButtonMove(pt);
 892 }
 893
 894 #ifdef __WXGTK__
 895 void ScintillaWX::DoMiddleButtonUp(Point pt) {
 896     // Set the current position to the mouse click point and
 897     // then paste in the PRIMARY selection, if any.  wxGTK only.
 898     int newPos = PositionFromLocation(pt);
 899     MovePositionTo(newPos, noSel, true);
 900
 901     pdoc->BeginUndoAction();
 902     wxTextDataObject data;
 903     bool gotData = false;
 904     wxTheClipboard->UsePrimarySelection(true);
 905     if (wxTheClipboard->Open()) {
 906         gotData = wxTheClipboard->GetData(data);
 907         wxTheClipboard->Close();
 908     }
 909     wxTheClipboard->UsePrimarySelection(false);
 910     if (gotData) {
 911         wxString   text = wxTextBuffer::Translate(data.GetText(),
 912                                                   wxConvertEOLMode(pdoc->eolMode));
 913         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 914         int        len = strlen(buf);
 915         pdoc->InsertString(currentPos, buf, len);
 916         SetEmptySelection(currentPos + len);
 917     }
 918     pdoc->EndUndoAction();
 919     NotifyChange();
 920     Redraw();
 921
 922     ShowCaretAtCurrentPosition();
 923     EnsureCaretVisible();
 924 }
 925 #else
 926 void ScintillaWX::DoMiddleButtonUp(Point WXUNUSED(pt)) {
 927 }
 928 #endif
 929
 930
 931 void ScintillaWX::DoAddChar(int key) {
 932 #if wxUSE_UNICODE
 933     wxChar wszChars[2];
 934     wszChars[0] = (wxChar)key;
 935     wszChars[1] = 0;
 936     wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(wszChars);
 937     AddCharUTF((char*)buf.data(), strlen(buf));
 938 #else
 939     AddChar((char)key);
 940 #endif
 941 }
 942
 943
 944 int  ScintillaWX::DoKeyDown(const wxKeyEvent& evt, bool* consumed)
 945 {
 946     int key = evt.GetKeyCode();
 947     bool shift = evt.ShiftDown(),
 948          ctrl  = evt.ControlDown(),
 949          alt   = evt.AltDown();
 950
 951     if (ctrl && key >= 1 && key <= 26 && key != WXK_BACK)
 952         key += 'A' - 1;
 953
 954     switch (key) {
 955     case WXK_DOWN:              key = SCK_DOWN;     break;
 956     case WXK_UP:                key = SCK_UP;       break;
 957     case WXK_LEFT:              key = SCK_LEFT;     break;
 958     case WXK_RIGHT:             key = SCK_RIGHT;    break;
 959     case WXK_HOME:              key = SCK_HOME;     break;
 960     case WXK_END:               key = SCK_END;      break;
 961     case WXK_PAGEUP:            key = SCK_PRIOR;    break;
 962     case WXK_PAGEDOWN:          key = SCK_NEXT;     break;
 963     case WXK_NUMPAD_DOWN:       key = SCK_DOWN;     break;
 964     case WXK_NUMPAD_UP:         key = SCK_UP;       break;
 965     case WXK_NUMPAD_LEFT:       key = SCK_LEFT;     break;
 966     case WXK_NUMPAD_RIGHT:      key = SCK_RIGHT;    break;
 967     case WXK_NUMPAD_HOME:       key = SCK_HOME;     break;
 968     case WXK_NUMPAD_END:        key = SCK_END;      break;
 969     case WXK_NUMPAD_PAGEUP:     key = SCK_PRIOR;    break;
 970     case WXK_NUMPAD_PAGEDOWN:   key = SCK_NEXT;     break;
 971     case WXK_NUMPAD_DELETE:     key = SCK_DELETE;   break;
 972     case WXK_NUMPAD_INSERT:     key = SCK_INSERT;   break;
 973     case WXK_DELETE:            key = SCK_DELETE;   break;
 974     case WXK_INSERT:            key = SCK_INSERT;   break;
 975     case WXK_ESCAPE:            key = SCK_ESCAPE;   break;
 976     case WXK_BACK:              key = SCK_BACK;     break;
 977     case WXK_TAB:               key = SCK_TAB;      break;
 978     case WXK_NUMPAD_ENTER:      // fall through
 979     case WXK_RETURN:            key = SCK_RETURN;   break;
 980     case WXK_ADD:               // fall through
 981     case WXK_NUMPAD_ADD:        key = SCK_ADD;      break;
 982     case WXK_SUBTRACT:          // fall through
 983     case WXK_NUMPAD_SUBTRACT:   key = SCK_SUBTRACT; break;
 984     case WXK_DIVIDE:            // fall through
 985     case WXK_NUMPAD_DIVIDE:     key = SCK_DIVIDE;   break;
 986     case WXK_CONTROL:           key = 0; break;
 987     case WXK_ALT:               key = 0; break;
 988     case WXK_SHIFT:             key = 0; break;
 989     case WXK_MENU:              key = 0; break;
 990     }
 991
 992 #ifdef __WXMAC__
 993     if ( evt.MetaDown() ) {
 994         // check for a few common Mac Meta-key combos and remap them to Ctrl
 995         // for Scintilla
 996         switch ( key ) {
 997         case 'Z':       // Undo
 998         case 'X':       // Cut
 999         case 'C':       // Copy
1000         case 'V':       // Paste
1001         case 'A':       // Select All
1002             ctrl = true;
1003             break;
1004         }
1005     }
1006 #endif
1007
1008     int rv = KeyDown(key, shift, ctrl, alt, consumed);
1009
1010     if (key)
1011         return rv;
1012     else
1013         return 1;
1014 }
1015
1016
1017 void ScintillaWX::DoCommand(int ID) {
1018     Command(ID);
1019 }
1020
1021
1022 void ScintillaWX::DoContextMenu(Point pt) {
1023     if (displayPopupMenu)
1024         ContextMenu(pt);
1025 }
1026
1027 void ScintillaWX::DoOnListBox() {
1028     AutoCompleteCompleted();
1029 }
1030
1031
1032 void ScintillaWX::DoOnIdle(wxIdleEvent& evt) {
1033
1034     if ( Idle() )
1035         evt.RequestMore();
1036     else
1037         SetIdle(false);
1038 }
1039
1040 //----------------------------------------------------------------------
1041
1042 #if wxUSE_DRAG_AND_DROP
1043 bool ScintillaWX::DoDropText(long x, long y, const wxString& data) {
1044     SetDragPosition(invalidPosition);
1045
1046     wxString text = wxTextBuffer::Translate(data,
1047                                             wxConvertEOLMode(pdoc->eolMode));
1048
1049     // Send an event to allow the drag details to be changed
1050     wxStyledTextEvent evt(wxEVT_STC_DO_DROP, stc->GetId());
1051     evt.SetEventObject(stc);
1052     evt.SetDragResult(dragResult);
1053     evt.SetX(x);
1054     evt.SetY(y);
1055     evt.SetPosition(PositionFromLocation(Point(x,y)));
1056     evt.SetDragText(text);
1057     stc->GetEventHandler()->ProcessEvent(evt);
1058
1059     dragResult = evt.GetDragResult();
1060     if (dragResult == wxDragMove || dragResult == wxDragCopy) {
1061         DropAt(evt.GetPosition(),
1062                wx2stc(evt.GetDragText()),
1063                dragResult == wxDragMove,
1064                false); // TODO: rectangular?
1065         return true;
1066     }
1067     return false;
1068 }
1069
1070
1071 wxDragResult ScintillaWX::DoDragEnter(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxDragResult def) {
1072     dragResult = def;
1073     return dragResult;
1074 }
1075
1076
1077 wxDragResult ScintillaWX::DoDragOver(wxCoord x, wxCoord y, wxDragResult def) {
1078     SetDragPosition(PositionFromLocation(Point(x, y)));
1079
1080     // Send an event to allow the drag result to be changed
1081     wxStyledTextEvent evt(wxEVT_STC_DRAG_OVER, stc->GetId());
1082     evt.SetEventObject(stc);
1083     evt.SetDragResult(def);
1084     evt.SetX(x);
1085     evt.SetY(y);
1086     evt.SetPosition(PositionFromLocation(Point(x,y)));
1087     stc->GetEventHandler()->ProcessEvent(evt);
1088
1089     dragResult = evt.GetDragResult();
1090     return dragResult;
1091 }
1092
1093
1094 void ScintillaWX::DoDragLeave() {
1095     SetDragPosition(invalidPosition);
1096 }
1097 #endif // wxUSE_DRAG_AND_DROP
1098 //----------------------------------------------------------------------
1099
1100 // Force the whole window to be repainted
1101 void ScintillaWX::FullPaint() {
1102 #ifndef __WXMAC__
1103     stc->Refresh(false);
1104 #endif
1105     stc->Update();
1106 }
1107
1108
1109 void ScintillaWX::DoScrollToLine(int line) {
1110     ScrollTo(line);
1111 }
1112
1113
1114 void ScintillaWX::DoScrollToColumn(int column) {
1115     HorizontalScrollTo(column * vs.spaceWidth);
1116 }
1117
1118 // wxGTK doesn't appear to need this explicit clipping code any longer, but I
1119 // will leave it here commented out for a while just in case...
1120 void ScintillaWX::ClipChildren(wxDC& WXUNUSED(dc), PRectangle WXUNUSED(rect))
1121 {
1122 //     wxRegion rgn(wxRectFromPRectangle(rect));
1123 //     if (ac.Active()) {
1124 //         wxRect childRect = ((wxWindow*)ac.lb->GetID())->GetRect();
1125 //         rgn.Subtract(childRect);
1126 //     }
1127 //     if (ct.inCallTipMode) {
1128 //         wxSTCCallTip* tip = (wxSTCCallTip*)ct.wCallTip.GetID();
1129 //         wxRect childRect = tip->GetRect();
1130 // #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
1131 //         childRect.SetPosition(tip->GetMyPosition());
1132 // #endif
1133 //         rgn.Subtract(childRect);
1134 //     }
1135 //     dc.SetClippingRegion(rgn);
1136 }
1137
1138
1139 void ScintillaWX::SetUseAntiAliasing(bool useAA) {
1140     vs.extraFontFlag = useAA;
1141     InvalidateStyleRedraw();
1142 }
1143
1144 bool ScintillaWX::GetUseAntiAliasing() {
1145     return vs.extraFontFlag;
1146 }
1147
1148 //----------------------------------------------------------------------
1149 //----------------------------------------------------------------------
1150
1151 #endif // wxUSE_STC