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