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/*
SuperCollider Qt IDE
Copyright (c) 2012 Jakob Leben & Tim Blechmann
http://www.audiosynth.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "editor.hpp"
#include "tokens.hpp"
#include "../core/settings/theme.hpp"
#include <QTextBlock>
#include <utility>
namespace ScIDE {
typedef std::pair<TokenIterator, TokenIterator> BracketPair;
class ScCodeEditor : public GenericCodeEditor {
Q_OBJECT
public:
/** \brief Used to indicate whether an edit action should start a new edit
* block, which affects undo/redo operation grouping.
*/
enum EditBlockMode {
NewEditBlock, ///< Start a new edit block.
JoinEditBlock ///< Join this edit to the previous one.
};
public:
static TokenIterator previousOpeningBracket(TokenIterator it);
static TokenIterator nextClosingBracket(TokenIterator it);
static void matchBracket(const TokenIterator& bracket, BracketPair& match);
static void nextBracketPair(const TokenIterator& startIt, BracketPair& bracketPair);
public:
ScCodeEditor(Document*, QWidget* parent = 0);
QTextCursor currentRegion();
void blinkCode(const QTextCursor& c);
bool spaceIndent() { return mSpaceIndent; }
public slots:
void applySettings(Settings::Manager*);
void setSpaceIndent(bool on) { mSpaceIndent = on; }
/// Indents the currently-selected text.
void indent(EditBlockMode = NewEditBlock);
void triggerAutoCompletion();
void triggerMethodCallAid();
void toggleComment();
void gotoPreviousBlock();
void gotoNextBlock();
void selectBlockAroundCursor();
void selectCurrentRegion();
void gotoNextRegion();
void gotoPreviousRegion();
bool openDocumentation();
void openDefinition();
void openCommandLine();
void findReferences();
void evaluateLine();
void evaluateRegion();
void evaluateDocument();
protected:
virtual bool event(QEvent*);
virtual void keyPressEvent(QKeyEvent*);
virtual void mouseReleaseEvent(QMouseEvent*);
virtual void mouseDoubleClickEvent(QMouseEvent*);
virtual void mouseMoveEvent(QMouseEvent*);
virtual void dragEnterEvent(QDragEnterEvent*);
virtual bool canInsertFromMimeData(const QMimeData* data) const;
virtual void insertFromMimeData(const QMimeData* data);
private slots:
void matchBrackets();
private:
QTextCursor cursorAt(const TokenIterator, int offset = 0);
QTextCursor selectionForPosition(int position);
QTextCursor regionAroundCursor(const QTextCursor&);
QTextCursor blockAroundCursor(const QTextCursor&);
void moveToNextToken(QTextCursor&, QTextCursor::MoveMode);
void moveToPreviousToken(QTextCursor&, QTextCursor::MoveMode);
void updateExtraSelections();
void indentCurrentRegion();
void toggleCommentSingleLine(QTextCursor);
void toggleCommentSingleLine();
void toggleCommentSelection();
void addSingleLineComment(QTextCursor, int indentationLevel);
void removeSingleLineComment(QTextCursor);
/** \brief Returns the index of the first non-whitespace character in
* \c block, or <tt>block.text().size()</tt> if the block is all whitespace.
*/
int indentedStartOfLine(const QTextBlock& block);
/// Indents the text in \c selection according to editor preferences.
void indent(const QTextCursor& selection, EditBlockMode = NewEditBlock);
/** \brief Indents a line to a chosen level of indentation.
*
* \param block The line to indent.
* \param level The level of indentation.
* \return A new \c QTextBlock indented to the requested level.
*/
QTextBlock indent(const QTextBlock& block, int level);
/** \brief Creates a string of indentation characters acccording to
* editor preferences.
*
* \param level The indentation level.
*/
QString makeIndentationString(int level);
/** \brief Get the indentation level for the cursor's selection start.
*
* \param cursor A cursor in the document.
* \return The number of levels of indentation there should be for
* the line where the \c cursor's selection starts, or -1 on failure.
*/
int indentationLevel(const QTextCursor& cursor);
/** \brief Inserts enough whitespace at \c cursor to reach the next
* tab stop according to editor preferences.
*/
void insertSpaceToNextTabStop(QTextCursor& cursor);
bool insertMatchingTokens(const QString& token);
bool removeMatchingTokens();
// Data members
/// If \c true, use spaces to indent.
bool mSpaceIndent;
bool mStepForwardEvaluation;
int mBlinkDuration;
bool mInsertMatchingTokens;
QTextCharFormat mBracketHighlight;
QTextCharFormat mBracketMismatchFormat;
bool mHighlightBracketContents;
QList<QTextEdit::ExtraSelection> mBracketSelections;
bool mMouseBracketMatch;
class AutoCompleter* mAutoCompleter;
};
} // namespace ScIDE
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