C++ GetCurrentPos函数代码示例

/* TextEditor::checkBraceMatch
 * Checks for a brace match at the current cursor position
 *******************************************************************/
void TextEditor::checkBraceMatch()
{
#ifdef __WXMAC__
	bool refresh = false;
#else
	bool refresh = true;
#endif

	// Check for brace match at current position
	int bracematch = BraceMatch(GetCurrentPos());
	if (bracematch != wxSTC_INVALID_POSITION)
	{
		BraceHighlight(GetCurrentPos(), bracematch);
		if (refresh) Refresh();
		return;
	}

	// No match, check for match at previous position
	bracematch = BraceMatch(GetCurrentPos() - 1);
	if (bracematch != wxSTC_INVALID_POSITION)
	{
		BraceHighlight(GetCurrentPos() - 1, bracematch);
		if (refresh) Refresh();
		return;
	}

	// No match at all, clear any previous brace match
	BraceHighlight(-1, -1);
	if (refresh) Refresh();
}

/* TextEditor::showFindReplacePanel
 * Shows or hides the Find+Replace panel, depending on [show]. If
 * shown, fills the find text box with the current selection or the
 * current word at the caret
 *******************************************************************/
void TextEditor::showFindReplacePanel(bool show)
{
	// Do nothing if no F+R panel has been set
	if (!panel_fr)
		return;

	// Hide if needed
	if (!show)
	{
		panel_fr->Hide();
		panel_fr->GetParent()->Layout();
		SetFocus();
		return;
	}

	// Get currently selected text
	string find = GetSelectedText();

	// Get the word at the current cursor position if there is no current selection
	if (find.IsEmpty())
	{
		int ws = WordStartPosition(GetCurrentPos(), true);
		int we = WordEndPosition(GetCurrentPos(), true);
		find = GetTextRange(ws, we);
	}

	// Show the F+R panel
	panel_fr->Show();
	panel_fr->GetParent()->Layout();
	panel_fr->setFindText(find);
}

void ContainerStacker::DriveToPoint() {
	SmartDashboard::PutNumber("TargetPosition", m_targetHeight);
	int position = CalculatePos();

	double error = position - GetCurrentPos();
	SmartDashboard::PutNumber("error, can", error);
	SmartDashboard::PutNumber("current, can", GetCurrentPos());
	SmartDashboard::PutNumber("point, can", position);
	CheckSensors();

	if(error > 50){
		if(error > 1000) {
			containerLift->Set(-1);
		}
		else {
			containerLift->Set(-error/1000);
		}
	}
	else if(error < -50) {

		if(error < -1000) {
			containerLift->Set(1);
		}
		else {
			containerLift->Set(-error/1000);
		}
	}
	else {
		containerLift->Set(0);
	}

}

void ContainerStacker::DriveToPoint(int point) {
	double error = point - GetCurrentPos();
	SmartDashboard::PutNumber("error1, can", error);
	SmartDashboard::PutNumber("current1, can", GetCurrentPos());
	SmartDashboard::PutNumber("point1, can", point);
	CheckSensors();
	if(error > 50){
		if(error > 1000) {
			containerLift->Set(-1);
		}
		else {
			containerLift->Set(-error/1000);
		}
	}
	else if(error < -50) {
		if(error < -1000) {
			containerLift->Set(1);
		}
		else {
			containerLift->Set(-error/1000);
		}
	}
	else {
		containerLift->Set(0);
	}
}

/* TextEditor::onCharAdded
 * Called when a character is added to the text
 *******************************************************************/
void TextEditor::onCharAdded(wxStyledTextEvent& e)
{
	// Update line numbers margin width
	string numlines = S_FMT("0%d", GetNumberOfLines());
	SetMarginWidth(0, TextWidth(wxSTC_STYLE_LINENUMBER, numlines));

	// Auto indent
	int currentLine = GetCurrentLine();
	if (txed_auto_indent && e.GetKey() == '\n')
	{
		// Get indentation amount
		int lineInd = 0;
		if (currentLine > 0)
			lineInd = GetLineIndentation(currentLine - 1);

		// Do auto-indent if needed
		if (lineInd != 0)
		{
			SetLineIndentation(currentLine, lineInd);

			// Skip to end of tabs
			while (1)
			{
				int chr = GetCharAt(GetCurrentPos());
				if (chr == '\t' || chr == ' ')
					GotoPos(GetCurrentPos()+1);
				else
					break;
			}
		}
	}

	// The following require a language to work
	if (language)
	{
		// Call tip
		if (e.GetKey() == '(' && txed_calltips_parenthesis)
		{
			openCalltip(GetCurrentPos());
		}

		// End call tip
		if (e.GetKey() == ')')
		{
			CallTipCancel();
		}

		// Comma, possibly update calltip
		if (e.GetKey() == ',' && txed_calltips_parenthesis)
		{
			//openCalltip(GetCurrentPos());
			//if (CallTipActive())
			updateCalltip();
		}
	}

	// Continue
	e.Skip();
}

void cbStyledTextCtrl::OnKeyDown(wxKeyEvent& event)
{
    switch (event.GetKeyCode())
    {
        case WXK_TAB:
        {
            if (m_tabSmartJump && !(event.ControlDown() || event.ShiftDown() || event.AltDown()))
            {
                if (!AutoCompActive() && m_bracePosition != wxSCI_INVALID_POSITION)
                {
                    m_lastPosition = GetCurrentPos();
                    GotoPos(m_bracePosition);

                    // Need judge if it's the final brace
                    HighlightRightBrace();
                    if (!m_tabSmartJump && CallTipActive())
                        CallTipCancel();
                    return;
                }
            }
        }
        break;

        case WXK_BACK:
        {
            if (m_tabSmartJump)
            {
                if (!(event.ControlDown() || event.ShiftDown() || event.AltDown()))
                {
                    const int pos = GetCurrentPos();
                    const int index = s_leftBrace.Find((wxChar)GetCharAt(pos - 1));
                    if (index != wxNOT_FOUND && (wxChar)GetCharAt(pos) == s_rightBrace.GetChar(index))
                    {
                        CharRight();
                        DeleteBack();
                    }
                }
                else if (m_lastPosition != wxSCI_INVALID_POSITION && event.ControlDown())
                {
                    GotoPos(m_lastPosition);
                    m_lastPosition = wxSCI_INVALID_POSITION;
                    return;
                }
            }
        }
        break;

        case WXK_RETURN:
        case WXK_ESCAPE:
        {
            if (m_tabSmartJump)
                m_tabSmartJump = false;
        }
        break;
    }

    event.Skip();
}

/* TextEditor::onUpdateUI
 * Called when anything is modified in the text editor (cursor
 * position, styling, text, etc)
 *******************************************************************/
void TextEditor::onUpdateUI(wxStyledTextEvent& e)
{
	// Check for brace match
	if (txed_brace_match)
		checkBraceMatch();

	// If a calltip is open, update it
	if (call_tip->IsShown())
		updateCalltip();

	// Do word matching if appropriate
	if (txed_match_cursor_word && language)
	{
		int word_start = WordStartPosition(GetCurrentPos(), true);
		int word_end = WordEndPosition(GetCurrentPos(), true);
		string current_word = GetTextRange(word_start, word_end);
		if (!current_word.IsEmpty() && HasFocus())
		{
			if (current_word != prev_word_match)
			{
				prev_word_match = current_word;

				SetIndicatorCurrent(8);
				IndicatorClearRange(0, GetTextLength());
				SetTargetStart(0);
				SetTargetEnd(GetTextLength());
				SetSearchFlags(0);
				while (SearchInTarget(current_word) != -1)
				{
					IndicatorFillRange(GetTargetStart(), GetTargetEnd() - GetTargetStart());
					SetTargetStart(GetTargetEnd());
					SetTargetEnd(GetTextLength());
				}
			}
		}
		else
		{
			SetIndicatorCurrent(8);
			IndicatorClearRange(0, GetTextLength());
			prev_word_match = "";
		}
	}

	// Hilight current line
	MarkerDeleteAll(1);
	MarkerDeleteAll(2);
	if (txed_hilight_current_line > 0 && HasFocus())
	{
		int line = LineFromPosition(GetCurrentPos());
		MarkerAdd(line, 1);
		if (txed_hilight_current_line > 1)
			MarkerAdd(line, 2);
	}

	e.Skip();
}

void CodeEditor::OnCharAdded(wxScintillaEvent &event)
{
	char ch = event.GetKey();
	int currentLine = GetCurrentLine();
	int pos = GetCurrentPos();

	if (ch == wxT('\n') && currentLine > 0)
	{
		BeginUndoAction();

		wxString indent = GetLineIndentString(currentLine - 1);

		wxChar b = GetLastNonWhitespaceChar();
		if(b == wxT('{'))
		{
			if(GetUseTabs())
				indent << wxT("\t");
			else
				indent << wxT("    ");
		}

		InsertText(pos, indent);
		GotoPos((int)(pos + indent.Length()));
		ChooseCaretX();

		EndUndoAction();
	}
	else if(ch == wxT('}'))
	{
		BeginUndoAction();

		wxString line = GetLine(currentLine);
		line.Trim(false);
		line.Trim(true);
		if(line.Matches(wxT("}")))
		{
			pos = GetCurrentPos() - 2;
			pos = FindBlockStart(pos, wxT('{'), wxT('}'));

			if(pos != -1)
			{
				wxString indent = GetLineIndentString(LineFromPosition(pos));
				indent << wxT('}');
				DelLineLeft();
				DelLineRight();
				pos = GetCurrentPos();
				InsertText(pos, indent);
				GotoPos((int)(pos + indent.Length()));
				ChooseCaretX();
			}
		}

		EndUndoAction();
	}
}

CString ScintillaEditor::GetWord()
{
	int savePos = GetCurrentPos();
	SendEditor(SCI_WORDLEFT);
	DWORD startPos = GetCurrentPos();
	SendEditor(SCI_WORDRIGHTEXTEND);
	DWORD endPos = GetCurrentPos();
	CStringA str;
	LPSTR buf = str.GetBufferSetLength(endPos - startPos);
	GetSelText(buf);
	str.ReleaseBuffer(endPos - startPos);
	SendEditor(SCI_SETCURRENTPOS, savePos);

	return CString(str);
}

void MaterialScriptEditor::OnCharAdded(wxScintillaEvent &event)
{
    ScintillaEditor::OnCharAdded(event);

    char ch = event.GetKey();
    if(getCallTipManager().isTrigger(ch))
    {
        int lineNum = GetCurrentLine();
        if(lineNum != -1)
        {
            wxString line = GetLine(lineNum);
            int pos = GetCurrentPos() - 1;

            wxString word("");
            wxChar ch;
            while(pos)
            {
                ch = GetCharAt(--pos);
                if(ch != ' ' && ch != '\n' && ch != '\r' && ch != '\t' && ch != '{' && ch != '}') word.Prepend(ch);
                else break;
            }

            wxString* tips = getCallTipManager().find(word);
            if(tips != NULL)
            {
                CallTipShow(pos, *tips);
            }
        }
    }
}

wxChar CodeEditor::GetLastNonWhitespaceChar(int position /* = -1 */)
{
	if (position == -1)
		position = GetCurrentPos();

	int count = 0; // Used to count the number of blank lines
	bool foundlf = false; // For the rare case of CR's without LF's
	while (position)
	{
		wxChar c = GetCharAt(--position);
		int style = GetStyleAt(position);
		bool inComment = style == wxSCI_C_COMMENT ||
			style == wxSCI_C_COMMENTDOC ||
			style == wxSCI_C_COMMENTDOCKEYWORD ||
			style == wxSCI_C_COMMENTDOCKEYWORDERROR ||
			style == wxSCI_C_COMMENTLINE ||
			style == wxSCI_C_COMMENTLINEDOC;
		if (c == wxT('\n'))
		{
			count++;
			foundlf = true;
		}
		else if (c == wxT('\r') && !foundlf)
			count++;
		else
			foundlf = false;
		if (count > 1) return 0; // Don't over-indent
		if (!inComment && c != wxT(' ') && c != wxT('\t') && c != wxT('\n') && c != wxT('\r'))
			return c;
	}

	return 0;
}

void DlgEditMusic::s_DefEndPos() {
    if (StopMaj) return;
    MusicObject->EndPos=GetCurrentPos();
    if (MusicObject->EndPos>=MusicObject->GetRealDuration()) MusicObject->EndPos=MusicObject->GetRealDuration().addMSecs(-1);
    ui->CustomRuler->EndPos=QTime(0,0,0,0).msecsTo(MusicObject->EndPos);
    RefreshControls();
}

bool SearchableEditor::find(bool newSearch)
{
    if (!fd)
        fd = new FindDialog(this, ::wxGetTopLevelParent(this));
    if (newSearch || findTextM.empty())
    {
        if (newSearch)
        {
            // find selected text
            wxString findText(GetSelectedText());
            // failing that initialize with the word at the caret
            if (findText.empty())
            {
                int pos = GetCurrentPos();
                int start = WordStartPosition(pos, true);
                int end = WordEndPosition(pos, true);
                if (end > start)
                    findText = GetTextRange(start, end);
            }
            fd->SetFindText(findText);
        }

        // do not re-center dialog if it is already visible
        if (!fd->IsShown())
            fd->Show();
        fd->SetFocus();
        return false;    // <- caller shouldn't care about this
    }

    int start = GetSelectionEnd();
    if (findFlagsM.has(se::FROM_TOP))
    {
        start = 0;
        findFlagsM.remove(se::ALERT);    // remove flag after first find
    }

    int end = GetTextLength();
    int p = FindText(start, end, findTextM, findFlagsM.asStc());
    if (p == -1)
    {
        if (findFlagsM.has(se::WRAP))
            p = FindText(0, end, findTextM, findFlagsM.asStc());
        if (p == -1)
        {
            if (findFlagsM.has(se::ALERT))
                wxMessageBox(_("No more matches"), _("Search complete"), wxICON_INFORMATION|wxOK);
            return false;
        }
    }
    centerCaret(true);
    GotoPos(p);
    GotoPos(p + findTextM.Length());
    SetSelectionStart(p);
    SetSelectionEnd(p + findTextM.Length());
    centerCaret(false);
    return true;
}

 /// Override logic for assigning the molecule type
 /// @note fForceType is ignored if the sequence length is less than the
 /// value configured in the constructor
 virtual void AssignMolType(ILineErrorListener * pMessageListener) {
     if (GetCurrentPos(eRawPos) < m_SeqLenThreshold) {
         _ASSERT( (TestFlag(fAssumeNuc) ^ TestFlag(fAssumeProt) ) );
         SetCurrentSeq().SetInst().SetMol(TestFlag(fAssumeNuc) 
                                          ? CSeq_inst::eMol_na 
                                          : CSeq_inst::eMol_aa);
     } else {
         CFastaReader::AssignMolType(pMessageListener);
     }
 }

void Edit::OnBraceMatch (wxCommandEvent &WXUNUSED(event)) {
    int min = GetCurrentPos ();
    int max = BraceMatch (min);
    if (max > (min+1)) {
        BraceHighlight (min+1, max);
        SetSelection (min+1, max);
    }else{
        BraceBadLight (min);
    }
}