scintillabase.cxx

非常好用的可移植的多平台C/C++源代码编辑器

		pdoc->DeleteChars(firstPos, endPos - firstPos);
	}
	SetEmptySelection(ac.posStart);
	if (item != -1) {
		SString piece = selected;
		pdoc->InsertString(firstPos, piece.c_str());
		SetEmptySelection(firstPos + static_cast<int>(piece.length()));
	}
	pdoc->EndUndoAction();
}

int ScintillaBase::AutoCompleteGetCurrent() {
	return ac.lb->GetSelection();
}

void ScintillaBase::CallTipShow(Point pt, const char *defn) {
	AutoCompleteCancel();
	pt.y += vs.lineHeight;
	PRectangle rc = ct.CallTipStart(currentPos, pt,
		defn,
		vs.styles[STYLE_DEFAULT].fontName,
		vs.styles[STYLE_DEFAULT].sizeZoomed,
		CodePage(),
		vs.styles[STYLE_DEFAULT].characterSet,
		wMain);
	// If the call-tip window would be out of the client
	// space, adjust so it displays above the text.
	PRectangle rcClient = GetClientRectangle();
	if (rc.bottom > rcClient.bottom) {
		int offset = vs.lineHeight + rc.Height();
		rc.top -= offset;
		rc.bottom -= offset;
	}
	// Now display the window.
	CreateCallTipWindow(rc);
	ct.wCallTip.SetPositionRelative(rc, wMain);
	ct.wCallTip.Show();
}

void ScintillaBase::CallTipClick() {
	SCNotification scn = {0};
	scn.nmhdr.code = SCN_CALLTIPCLICK;
	scn.position = ct.clickPlace;
	NotifyParent(scn);
}

void ScintillaBase::ContextMenu(Point pt) {
	if (displayPopupMenu) {
		bool writable = !WndProc(SCI_GETREADONLY, 0, 0);
		popup.CreatePopUp();
		AddToPopUp("Undo", idcmdUndo, writable && pdoc->CanUndo());
		AddToPopUp("Redo", idcmdRedo, writable && pdoc->CanRedo());
		AddToPopUp("");
		AddToPopUp("Cut", idcmdCut, writable && currentPos != anchor);
		AddToPopUp("Copy", idcmdCopy, currentPos != anchor);
		AddToPopUp("Paste", idcmdPaste, writable && WndProc(SCI_CANPASTE, 0, 0));
		AddToPopUp("Delete", idcmdDelete, writable && currentPos != anchor);
		AddToPopUp("");
		AddToPopUp("Select All", idcmdSelectAll);
		popup.Show(pt, wMain);
	}
}

void ScintillaBase::CancelModes() {
	AutoCompleteCancel();
	ct.CallTipCancel();
	Editor::CancelModes();
}

void ScintillaBase::ButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt) {
	CancelModes();
	Editor::ButtonDown(pt, curTime, shift, ctrl, alt);
}

#ifdef SCI_LEXER
void ScintillaBase::SetLexer(uptr_t wParam) {
	lexLanguage = wParam;
	lexCurrent = LexerModule::Find(lexLanguage);
	if (!lexCurrent)
		lexCurrent = LexerModule::Find(SCLEX_NULL);
}

void ScintillaBase::SetLexerLanguage(const char *languageName) {
	lexLanguage = SCLEX_CONTAINER;
	lexCurrent = LexerModule::Find(languageName);
	if (!lexCurrent)
		lexCurrent = LexerModule::Find(SCLEX_NULL);
	if (lexCurrent)
		lexLanguage = lexCurrent->GetLanguage();
}

void ScintillaBase::Colourise(int start, int end) {
	int lengthDoc = pdoc->Length();
	if (end == -1)
		end = lengthDoc;
	int len = end - start;

	PLATFORM_ASSERT(len >= 0);
	PLATFORM_ASSERT(start + len <= lengthDoc);

	//WindowAccessor styler(wMain.GetID(), props);
	DocumentAccessor styler(pdoc, props, wMain.GetID());

	int styleStart = 0;
	if (start > 0)
		styleStart = styler.StyleAt(start - 1);
	styler.SetCodePage(pdoc->dbcsCodePage);

	if (lexCurrent && (len > 0)) {	// Should always succeed as null lexer should always be available
		lexCurrent->Lex(start, len, styleStart, keyWordLists, styler);
		styler.Flush();
		if (styler.GetPropertyInt("fold")) {
			lexCurrent->Fold(start, len, styleStart, keyWordLists, styler);
			styler.Flush();
		}
	}
}
#endif

void ScintillaBase::NotifyStyleToNeeded(int endStyleNeeded) {
#ifdef SCI_LEXER
	if (lexLanguage != SCLEX_CONTAINER) {
		int endStyled = WndProc(SCI_GETENDSTYLED, 0, 0);
		int lineEndStyled = WndProc(SCI_LINEFROMPOSITION, endStyled, 0);
		endStyled = WndProc(SCI_POSITIONFROMLINE, lineEndStyled, 0);
		Colourise(endStyled, endStyleNeeded);
		return;
	}
#endif
	Editor::NotifyStyleToNeeded(endStyleNeeded);
}

sptr_t ScintillaBase::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
	switch (iMessage) {
	case SCI_AUTOCSHOW:
		listType = 0;
		AutoCompleteStart(wParam, reinterpret_cast<const char *>(lParam));
		break;

	case SCI_AUTOCCANCEL:
		AutoCompleteCancel();
		break;

	case SCI_AUTOCACTIVE:
		return ac.Active();

	case SCI_AUTOCPOSSTART:
		return ac.posStart;

	case SCI_AUTOCCOMPLETE:
		AutoCompleteCompleted();
		break;

	case SCI_AUTOCSETSEPARATOR:
		ac.SetSeparator(static_cast<char>(wParam));
		break;

	case SCI_AUTOCGETSEPARATOR:
		return ac.GetSeparator();

	case SCI_AUTOCSTOPS:
		ac.SetStopChars(reinterpret_cast<char *>(lParam));
		break;

	case SCI_AUTOCSELECT:
		ac.Select(reinterpret_cast<char *>(lParam));
		break;

	case SCI_AUTOCGETCURRENT:
		return AutoCompleteGetCurrent();

	case SCI_AUTOCSETCANCELATSTART:
		ac.cancelAtStartPos = wParam != 0;
		break;

	case SCI_AUTOCGETCANCELATSTART:
		return ac.cancelAtStartPos;

	case SCI_AUTOCSETFILLUPS:
		ac.SetFillUpChars(reinterpret_cast<char *>(lParam));
		break;

	case SCI_AUTOCSETCHOOSESINGLE:
		ac.chooseSingle = wParam != 0;
		break;

	case SCI_AUTOCGETCHOOSESINGLE:
		return ac.chooseSingle;

	case SCI_AUTOCSETIGNORECASE:
		ac.ignoreCase = wParam != 0;
		break;

	case SCI_AUTOCGETIGNORECASE:
		return ac.ignoreCase;

	case SCI_USERLISTSHOW:
		listType = wParam;
		AutoCompleteStart(0, reinterpret_cast<const char *>(lParam));
		break;

	case SCI_AUTOCSETAUTOHIDE:
		ac.autoHide = wParam != 0;
		break;

	case SCI_AUTOCGETAUTOHIDE:
		return ac.autoHide;

	case SCI_AUTOCSETDROPRESTOFWORD:
		ac.dropRestOfWord = wParam != 0;
		break;

	case SCI_AUTOCGETDROPRESTOFWORD:
		return ac.dropRestOfWord;

	case SCI_AUTOCSETMAXHEIGHT:
		ac.lb->SetVisibleRows(wParam);
		break;

	case SCI_AUTOCGETMAXHEIGHT:
		return ac.lb->GetVisibleRows();

	case SCI_AUTOCSETMAXWIDTH:
		maxListWidth = wParam;
		break;

	case SCI_AUTOCGETMAXWIDTH:
		return maxListWidth;

	case SCI_REGISTERIMAGE:
		ac.lb->RegisterImage(wParam, reinterpret_cast<const char *>(lParam));
		break;

	case SCI_CLEARREGISTEREDIMAGES:
		ac.lb->ClearRegisteredImages();
		break;

	case SCI_AUTOCSETTYPESEPARATOR:
		ac.SetTypesep(static_cast<char>(wParam));
		break;

	case SCI_AUTOCGETTYPESEPARATOR:
		return ac.GetTypesep();

	case SCI_CALLTIPSHOW:
		CallTipShow(LocationFromPosition(wParam),
			reinterpret_cast<const char *>(lParam));
		break;

	case SCI_CALLTIPCANCEL:
		ct.CallTipCancel();
		break;

	case SCI_CALLTIPACTIVE:
		return ct.inCallTipMode;

	case SCI_CALLTIPPOSSTART:
		return ct.posStartCallTip;

	case SCI_CALLTIPSETHLT:
		ct.SetHighlight(wParam, lParam);
		break;

	case SCI_CALLTIPSETBACK:
		ct.colourBG = ColourDesired(wParam);
		InvalidateStyleRedraw();
		break;

	case SCI_CALLTIPSETFORE:
		ct.colourUnSel = ColourDesired(wParam);
		InvalidateStyleRedraw();
		break;

	case SCI_CALLTIPSETFOREHLT:
		ct.colourSel = ColourDesired(wParam);
		InvalidateStyleRedraw();
		break;

	case SCI_USEPOPUP:
		displayPopupMenu = wParam != 0;
		break;

#ifdef SCI_LEXER
	case SCI_SETLEXER:
		SetLexer(wParam);
		lexLanguage = wParam;
		break;

	case SCI_GETLEXER:
		return lexLanguage;

	case SCI_COLOURISE:
		if (lexLanguage == SCLEX_CONTAINER) {
			pdoc->ModifiedAt(wParam);
			NotifyStyleToNeeded((lParam == -1) ? pdoc->Length() : lParam);
		} else {
			Colourise(wParam, lParam);
		}
		Redraw();
		break;

	case SCI_SETPROPERTY:
		props.Set(reinterpret_cast<const char *>(wParam),
		          reinterpret_cast<const char *>(lParam));
		break;

	case SCI_GETPROPERTY: {
			SString val = props.Get(reinterpret_cast<const char *>(wParam));
			const int n = val.length();
			if (lParam != 0) {
				char *ptr = reinterpret_cast<char *>(lParam);
				memcpy(ptr, val.c_str(), n);
				ptr[n] = '\0';	// terminate
			}
			return n;	// Not including NUL
		}

	case SCI_GETPROPERTYEXPANDED: {
			SString val = props.GetExpanded(reinterpret_cast<const char *>(wParam));
			const int n = val.length();
			if (lParam != 0) {
				char *ptr = reinterpret_cast<char *>(lParam);
				memcpy(ptr, val.c_str(), n);
				ptr[n] = '\0';	// terminate
			}
			return n;	// Not including NUL
		}

	case SCI_GETPROPERTYINT:
		return props.GetInt(reinterpret_cast<const char *>(wParam), lParam);

	case SCI_SETKEYWORDS:
		if (wParam < numWordLists) {
			keyWordLists[wParam]->Clear();
			keyWordLists[wParam]->Set(reinterpret_cast<const char *>(lParam));
		}
		break;

	case SCI_SETLEXERLANGUAGE:
		SetLexerLanguage(reinterpret_cast<const char *>(lParam));
		break;

#endif

	default:
		return Editor::WndProc(iMessage, wParam, lParam);
	}
	return 0l;
}