git-svn-id: svn://db.shs.com.ru/libs@32 a8b55f48-bf90-11e4-a774-851b48703e85

2015-09-19 19:44:55 +00:00
parent fc937a3cd2
commit f597f3b5ad
3 changed files with 242 additions and 73 deletions
--- a/qad_widgets/CMakeLists.txt
+++ b/qad_widgets/CMakeLists.txt
@@ -4,7 +4,7 @@ find_package(Qt4 REQUIRED)
 include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${QT_INCLUDES})

 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2 -Wall")
-#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
 set(CMAKE_C_FLAGS "${CMAKE_CXX_FLAGS}")

 set(MOCS "qpiconsole.h" "spinslider.h"
--- a/qad_widgets/qcodeedit.cpp
+++ b/qad_widgets/qcodeedit.cpp
@@ -17,26 +17,34 @@ QCodeEdit::QCodeEdit(QWidget * parent): QWidget(parent) {
 	textCode = textLines = 0;
 	
 	timer = 0;
-	_ignore_focus_out = false;
+	_ignore_focus_out = _destructor = false;
 	_first = true;
 	es_line.format.setBackground(QColor(240, 245, 240));
 	es_line.format.setProperty(QTextFormat::FullWidthSelection, true);
-	completer.setWindowFlags(Qt::Tool | Qt::FramelessWindowHint);
-	completer.setFocusPolicy(Qt::NoFocus);
-	completer.setColumnCount(2);
-	completer.setRootIsDecorated(false);
-	completer.setHeaderHidden(true);
-	completer.header()->setDefaultAlignment(Qt::AlignCenter);
-	completer.header()->
+	es_cursor.format.setBackground(QColor(220, 255, 200));
+	lbl_help = new IconedLabel();
+	lbl_help->setWindowFlags(Qt::Tool | Qt::FramelessWindowHint);
+	lbl_help->setFocusPolicy(Qt::NoFocus);
+	lbl_help->setFrameShadow(QFrame::Sunken);
+	lbl_help->setFrameShape(QFrame::StyledPanel);
+	lbl_help->setDirection(IconedLabel::RightToLeft);
+	completer = new QTreeWidget();
+	completer->setWindowFlags(Qt::Tool | Qt::FramelessWindowHint);
+	completer->setFocusPolicy(Qt::NoFocus);
+	completer->setColumnCount(2);
+	completer->setRootIsDecorated(false);
+	completer->setHeaderHidden(true);
+	completer->header()->setDefaultAlignment(Qt::AlignCenter);
+	completer->header()->
 #if (QT_VERSION >= 0x050000)
 			setSectionResizeMode
 #else
 			setResizeMode
 #endif
 				(QHeaderView::ResizeToContents);
-	completer.header()->setStretchLastSection(true);
-	//completer.setColumnWidth(0, 180);
-	completer.resize(500, 200);
+	completer->header()->setStretchLastSection(true);
+	//completer->setColumnWidth(0, 180);
+	completer->resize(500, 200);
 	textCode = new QPlainTextEdit();
 	textLines = new QPlainTextEdit();
 	textCode->setFrameShadow(QFrame::Plain);
@@ -82,7 +90,7 @@ QCodeEdit::QCodeEdit(QWidget * parent): QWidget(parent) {
 	textLines->document()->setDefaultTextOption(to);
 	setShowSpaces(true);
 	
-	connect(&completer, SIGNAL(itemDoubleClicked(QTreeWidgetItem * ,int)), this, SLOT(commitCompletition()));
+	connect(completer, SIGNAL(itemDoubleClicked(QTreeWidgetItem * ,int)), this, SLOT(commitCompletition()));
 	connect(textCode->verticalScrollBar(), SIGNAL(valueChanged(int)), textLines->verticalScrollBar(), SLOT(setValue(int)));
 	connect(textCode, SIGNAL(textChanged()), this, SLOT(updateLines()));
 	connect(textCode, SIGNAL(textChanged()), this, SIGNAL(textChanged()));
@@ -95,8 +103,11 @@ QCodeEdit::QCodeEdit(QWidget * parent): QWidget(parent) {


 QCodeEdit::~QCodeEdit() {
+	_destructor = true;
 	delete textCode;
 	delete textLines;
+	delete completer;
+	delete lbl_help;
 }


@@ -165,8 +176,9 @@ QChar QCodeEdit::pairChar(QChar c) {


 bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
+	if (_destructor) return QWidget::eventFilter(o, e);
 	if (e->type() == QEvent::Destroy) {
-		completer.removeEventFilter(this);
+		completer->removeEventFilter(this);
 		textCode->removeEventFilter(this);
 		textCode->viewport()->removeEventFilter(this);
 		textLines->viewport()->removeEventFilter(this);
@@ -188,7 +200,7 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 			}
 		}
 	}
-	if (o == &completer) {
+	if (o == completer) {
 		//qDebug() << o << e;
 		if (e->type() == QEvent::WindowActivate)
 			_ignore_focus_out = true;
@@ -197,12 +209,20 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 	}
 	if (textCode) {
 		if (o == textCode->viewport()) {
-			if (e->type() == QEvent::MouseButtonPress)
-				completer.hide();
+			if (e->type() == QEvent::MouseButtonPress) {
+				completer->hide();
+				hideHelp();
+			}
+			if (e->type() == QEvent::ToolTip) {
+				QTextCursor tc = textCode->cursorForPosition(((QHelpEvent*)e)->pos());
+				tc.select(QTextCursor::WordUnderCursor);
+				raiseHelp(tc);
+			}
 			return QWidget::eventFilter(o, e);
 		}
 		if (o == textCode) {
 			//qDebug() << o << e;
+			QMetaObject::invokeMethod(this, "syncScrolls", Qt::QueuedConnection);
 			QKeyEvent * ke;
 			QChar kc(0);
 			switch (e->type()) {
@@ -216,14 +236,16 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 					}
 					break;
 				case Qt::Key_Escape:
-					completer.hide();
+					completer->hide();
+					hideHelp();
 					break;
 				case Qt::Key_Up:
-					if (completer.isVisible()) {
+					if (completer->isVisible()) {
 						previousCompletition();
 						return true;
 					}
-					completer.hide();
+					completer->hide();
+					hideHelp();
 					if (ke->modifiers().testFlag(Qt::AltModifier)) {
 						copyLineUp();
 						return true;
@@ -234,11 +256,12 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 					}
 					break;
 				case Qt::Key_Down:
-					if (completer.isVisible()) {
+					if (completer->isVisible()) {
 						nextCompletition();
 						return true;
 					}
-					completer.hide();
+					completer->hide();
+					hideHelp();
 					if (ke->modifiers().testFlag(Qt::AltModifier)) {
 						copyLineDown();
 						return true;
@@ -252,8 +275,8 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 				case Qt::Key_End:
 				case Qt::Key_PageUp:
 				case Qt::Key_PageDown:
-					if (completer.isVisible()) {
-						qApp->sendEvent(&completer, new QKeyEvent(e->type(), ke->key(), ke->modifiers()));
+					if (completer->isVisible()) {
+						qApp->sendEvent(completer, new QKeyEvent(e->type(), ke->key(), ke->modifiers()));
 						return true;
 					}
 					break;
@@ -261,13 +284,13 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 				case Qt::Key_Right:
 				case Qt::Key_Backspace:
 				case Qt::Key_Delete:
-					if (completer.isVisible())
+					if (completer->isVisible())
 						QMetaObject::invokeMethod(this, "invokeAutoCompletition", Qt::QueuedConnection, Q_ARG(bool, false));
 					break;
 				case Qt::Key_Return:
-					if (completer.isVisible()) {
+					if (completer->isVisible()) {
 						commitCompletition();
-						completer.hide();
+						completer->hide();
 						return true;
 					}
 					if (textCode->textCursor().selectedText().isEmpty())
@@ -284,7 +307,7 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 					break;
 				case Qt::Key_D:
 					if (ke->modifiers().testFlag(Qt::ControlModifier)) {
-						completer.hide();
+						completer->hide();
 						return true;
 					}
 					break;
@@ -293,10 +316,10 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 				if (!ke->text().isEmpty())
 					kc = ke->text()[0];
 				if (kc == '.') {
-					completer.hide();
+					completer->hide();
 					QMetaObject::invokeMethod(this, "invokeAutoCompletition", Qt::QueuedConnection, Q_ARG(bool, false));
 				} else {
-					if ((kc.isLetterOrNumber() || kc.toLatin1() == '_') && completer.isVisible())
+					if ((kc.isLetterOrNumber() || kc.toLatin1() == '_') && completer->isVisible())
 						QMetaObject::invokeMethod(this, "invokeAutoCompletition", Qt::QueuedConnection, Q_ARG(bool, false));
 				}
 				break;
@@ -309,7 +332,8 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 			case QEvent::HideToParent:
 			case QEvent::MouseButtonPress:
 				//qDebug() << e;
-				completer.hide();
+				completer->hide();
+				hideHelp();
 			default: break;
 			}
 		}
@@ -321,7 +345,7 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 void QCodeEdit::showEvent(QShowEvent * ) {
 	if (!_first) return;
 	_first = false;
-	completer.installEventFilter(this);
+	completer->installEventFilter(this);
 	textCode->installEventFilter(this);
 	textCode->viewport()->installEventFilter(this);
 	textLines->viewport()->installEventFilter(this);
@@ -337,34 +361,39 @@ void QCodeEdit::timerEvent(QTimerEvent * ) {


 void QCodeEdit::applyExtraSelection() {
-	textCode->setExtraSelections(QList<QTextEdit::ExtraSelection>() << es_line << es_selected << es_custom);
+	textCode->setExtraSelections(QList<QTextEdit::ExtraSelection>() << es_line << es_selected << es_custom << es_cursor);
 }


 void QCodeEdit::nextCompletition() {
-	int ci = completer.currentIndex().row();
-	if (ci >= completer.topLevelItemCount() - 1) return;
-	if (completer.topLevelItem(ci + 1)->flags().testFlag(Qt::ItemIsSelectable))
-		completer.setCurrentItem(completer.topLevelItem(ci + 1));
+	int ci = completer->currentIndex().row();
+	if (ci >= completer->topLevelItemCount() - 1) return;
+	if (completer->topLevelItem(ci + 1)->flags().testFlag(Qt::ItemIsSelectable))
+		completer->setCurrentItem(completer->topLevelItem(ci + 1));
 	else {
-		if (ci >= completer.topLevelItemCount() - 2) return;
-		completer.setCurrentItem(completer.topLevelItem(ci + 2));
+		if (ci >= completer->topLevelItemCount() - 2) return;
+		completer->setCurrentItem(completer->topLevelItem(ci + 2));
 	}
 }


 void QCodeEdit::previousCompletition() {
-	int ci = completer.currentIndex().row();
+	int ci = completer->currentIndex().row();
 	if (ci <= 0) return;
-	if (completer.topLevelItem(ci - 1)->flags().testFlag(Qt::ItemIsSelectable))
-		completer.setCurrentItem(completer.topLevelItem(ci - 1));
+	if (completer->topLevelItem(ci - 1)->flags().testFlag(Qt::ItemIsSelectable))
+		completer->setCurrentItem(completer->topLevelItem(ci - 1));
 	else {
 		if (ci <= 1) return;
-		completer.setCurrentItem(completer.topLevelItem(ci - 2));
+		completer->setCurrentItem(completer->topLevelItem(ci - 2));
 	}
 }


+void QCodeEdit::syncScrolls() {
+	textLines->verticalScrollBar()->setValue(textCode->verticalScrollBar()->value());
+}
+
+
 void QCodeEdit::deleteLine() {
 	QTextCursor tc = textCode->textCursor();
 	tc.movePosition(QTextCursor::EndOfLine);
@@ -606,6 +635,14 @@ void QCodeEdit::autoIndent() {
 }


+void QCodeEdit::scrollToTop() {
+	prev_lc = -1;
+	updateLines();
+	textCode->verticalScrollBar()->setValue(0);
+	textLines->verticalScrollBar()->setValue(0);
+}
+
+
 void QCodeEdit::updateLines() {
 	if (timer > 0) killTimer(timer);
 	timer = startTimer(500);
@@ -621,6 +658,106 @@ void QCodeEdit::updateLines() {
 }


+QString QCodeEdit::selectArg(QString s, int arg) {
+	if (!s.contains('(') || arg < 0) return s;
+	QString ss = s.left(s.indexOf('('));
+	s.remove(0, ss.size());
+	if (s.startsWith('(')) s.remove(0, 1);
+	if (s.endsWith(')')) s.chop(1);
+	QStringList al = s.split(",");
+	QString ret = ss + "(";
+	for (int i = 0; i < al.size(); ++i) {
+		if (i > 0) ret += ", ";
+		if (i == arg) ret += "<span style=\"font-weight:600;\">";
+		ret += al[i].trimmed();
+		if (i == arg) ret += "</span>";
+	}
+	ret += ")";
+	return ret;
+}
+
+
+void QCodeEdit::raiseHelp(QTextCursor tc, int arg) {
+	bool ok;
+	QPair<QStringList, QString> scope = getScope(tc, &ok);
+	//qDebug() << "help" << scope;
+	QString st = tc.selectedText();
+	if (arg >= 0) st = scope.second;
+	if (!ok || st.isEmpty()) {
+		hideHelp();
+		return;
+	}
+	ok = false;
+	ACList acl(autoCompletitionList(scope.first, scope.second));
+	foreach (const ACPair & i, acl) {
+		foreach (const StringsPair & s, i.second) {
+			QString ts = s.second;
+			//qDebug() << ts << st;
+			if (ts != st) {
+				if (ts.startsWith(st)) {
+					ts.remove(0, st.size());
+					ts = ts.trimmed();
+					if (!ts.isEmpty()) {
+						if (ts[0] != '(')
+							continue;
+					}
+				} else
+					continue;
+			}
+			//qDebug() << s.second << st;
+			ACClass acc = ac_classes.value(i.first);
+			lbl_help->setIcon(acc.icon);
+			lbl_help->setText(QString("<html><body>[%1]  %2  %3</html></body>").arg(acc.name, s.first, selectArg(s.second, arg)));
+			ok = true;
+			break;
+		}
+		if (ok) break;
+	}
+	if (!ok) {
+		hideHelp();
+		return;
+	}
+	es_cursor.cursor = tc;
+	applyExtraSelection();
+	tc.movePosition(QTextCursor::Left, QTextCursor::MoveAnchor, st.size());
+	lbl_help->setFont(font());
+	lbl_help->resize(lbl_help->sizeHint());
+	lbl_help->move(textCode->mapToGlobal(textCode->cursorRect(tc).topLeft() - QPoint(0, lbl_help->height() + 8)));
+	lbl_help->show();
+	//qDebug() << "tooltip" << st;
+}
+
+
+void QCodeEdit::hideHelp() {
+	lbl_help->hide();
+	es_cursor.cursor = QTextCursor();
+	applyExtraSelection();
+}
+
+
+QTextCursor QCodeEdit::functionStart(QTextCursor tc, int * arg) {
+	QString doc = textCode->toPlainText();
+	int bcnt = 0, a = 0, i = -1;
+	for (i = tc.position() - 1; i >= 0; --i) {
+		if (doc[i] == ')') bcnt++;
+		if (doc[i] == '(') {
+			if (bcnt == 0)
+				break;
+			else
+				bcnt--;
+		}
+		//if (doc[i] == '(') bcnt--;
+		if (doc[i] == ',' && bcnt == 0) a++;
+	}
+	if (i < 0) return QTextCursor();
+	if (arg) *arg = a;
+	QTextCursor ret(textCode->document());
+	ret.setPosition(i);
+	//qDebug() << "found" << i << a;
+	return ret;
+}
+
+
 QCodeEdit::ACList QCodeEdit::wordsCompletitionList(const QString & written) const {
 	QCodeEdit::ACList ret;
 	if (!written.isEmpty()) {
@@ -647,23 +784,26 @@ QCodeEdit::ACList QCodeEdit::wordsCompletitionList(const QString & written) cons
 }


-void QCodeEdit::invokeAutoCompletition(bool force) {
-	QTextCursor tc = textCode->textCursor(), stc = tc;
+QPair<QStringList, QString> QCodeEdit::getScope(QTextCursor tc, bool * ok) {
+	QPair<QStringList, QString> ret;
+	QTextCursor stc = tc;
 	if (tc.isNull()) {
-		completer.hide();
-		return;
+		completer->hide();
+		if (ok) *ok = false;
+		return ret;
 	}
 	int line = tc.block().firstLineNumber();
-	if (completer.isVisible()) {
+	if (completer->isVisible()) {
 		if (auto_comp_pl != line) {
-			completer.hide();
+			completer->hide();
 			auto_comp_pl = line;
-			return;
+			if (ok) *ok = false;
+			return ret;
 		}
 	}
 	QString doc = textCode->toPlainText();
 	auto_comp_pl = line;
-	completer.clear();
+	completer->clear();
 	int spos = tc.position(), cpos = spos;
 	tc.movePosition(QTextCursor::Left, QTextCursor::KeepAnchor);
 	QStringList scope;
@@ -692,13 +832,31 @@ void QCodeEdit::invokeAutoCompletition(bool force) {
 		scope.push_front(doc.mid(npos, ppos - npos));
 		cpos = npos;
 	}
-	ACList acl(autoCompletitionList(scope, written));
+	ret.first = scope;
+	ret.second = written;
+	if (ok) *ok = true;
+	return ret;
+}
+
+
+void QCodeEdit::invokeAutoCompletition(bool force) {
+	int arg = -1;
+	QTextCursor htc = functionStart(textCode->textCursor(), &arg);
+	if (!htc.isNull()) {
+		//qDebug() << "raise";
+		raiseHelp(htc, arg);
+	}
+	bool ok;
+	QPair<QStringList, QString> scope = getScope(textCode->textCursor(), &ok);
+	if (!ok) return;
+	ACList acl(autoCompletitionList(scope.first, scope.second));
 	//qDebug() << written << scope << acl.size();
-	if (scope.isEmpty() && written.isEmpty() && !force) {
-		completer.hide();
+	if (scope.first.isEmpty() && scope.second.isEmpty() && !force) {
+		completer->hide();
+		hideHelp();
 		return;
 	}
-	acl << wordsCompletitionList(written);
+	acl << wordsCompletitionList(scope.second);
 	QFont bf(font());
 	bf.setBold(true);
 	foreach (const ACPair & ac, acl) {
@@ -711,28 +869,28 @@ void QCodeEdit::invokeAutoCompletition(bool force) {
 		gi->setFont(0, bf);
 		gi->setBackgroundColor(0, Qt::lightGray);
 		gi->setFlags(Qt::ItemIsEnabled);
-		completer.addTopLevelItem(gi);
+		completer->addTopLevelItem(gi);
 		gi->setFirstColumnSpanned(true);
 		foreach (const StringsPair & s, ac.second) {
 			QTreeWidgetItem * ni = new QTreeWidgetItem();
 			ni->setIcon(0, acc.icon);
 			ni->setText(0, s.first);
 			ni->setText(1, s.second);
-			completer.addTopLevelItem(ni);
+			completer->addTopLevelItem(ni);
 		}
 	}
-	if (completer.topLevelItemCount() > 1)
-		completer.setCurrentItem(completer.topLevelItem(1));
-	if (completer.isHidden())
-		completer.move(textCode->mapToGlobal(textCode->cursorRect().bottomRight()));
-	completer.setVisible(completer.topLevelItemCount() > 0);
+	if (completer->topLevelItemCount() > 1)
+		completer->setCurrentItem(completer->topLevelItem(1));
+	if (completer->isHidden())
+		completer->move(textCode->mapToGlobal(textCode->cursorRect().bottomRight()));
+	completer->setVisible(completer->topLevelItemCount() > 0);
 }


 void QCodeEdit::commitCompletition() {
-	if (completer.currentItem() == 0) return;
-	if (!completer.currentItem()->flags().testFlag(Qt::ItemIsSelectable)) return;
-	QString ins = completer.currentItem()->text(1), ret = completer.currentItem()->text(0);
+	if (completer->currentItem() == 0) return;
+	if (!completer->currentItem()->flags().testFlag(Qt::ItemIsSelectable)) return;
+	QString ins = completer->currentItem()->text(1), ret = completer->currentItem()->text(0);
 	QTextCursor tc = textCode->textCursor(), stc = tc;
 	tc.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor);
 	bool ins_br = true, shifted = false;
@@ -771,21 +929,21 @@ void QCodeEdit::commitCompletition() {
 				tc.movePosition(QTextCursor::Left, QTextCursor::MoveAnchor, 2);
 			}
 		}
-		if (ins.endsWith(")") && !completer.currentItem()->text(1).endsWith("()")) {
+		if (ins.endsWith(")") && !completer->currentItem()->text(1).endsWith("()")) {
 			tc.movePosition(QTextCursor::Left);
 			textCode->setTextCursor(tc);
 		}
 	} else {
-		if (completer.currentItem()->text(1).endsWith(")")) {
+		if (completer->currentItem()->text(1).endsWith(")")) {
 			tc.movePosition(QTextCursor::Right);
 			textCode->setTextCursor(tc);
 		}
-		if (completer.currentItem()->text(1).endsWith("()")) {
+		if (completer->currentItem()->text(1).endsWith("()")) {
 			tc.movePosition(QTextCursor::Right);
 			textCode->setTextCursor(tc);
 		}
 	}
-	completer.hide();
+	completer->hide();
 }


--- a/qad_widgets/qcodeedit.h
+++ b/qad_widgets/qcodeedit.h
@@ -4,6 +4,8 @@
 #include <QDebug>
 #include <QPlainTextEdit>
 #include <QTreeWidget>
+#include <QScrollBar>
+#include "iconedlabel.h"

 QT_BEGIN_HEADER

@@ -36,6 +38,7 @@ public:
 	QRect cursorRect() const {return textCode->cursorRect();}
 	QRect cursorRect(const QTextCursor & cursor) const {return textCode->cursorRect(cursor);}
 	QString text() const {return textCode->toPlainText();}
+	QString helpWord() const {return es_cursor.cursor.selectedText();}
 	bool showSpaces() const {return spaces_;}
 	bool showLineNumbers() const {return textLines->isVisible();}
 	
@@ -50,7 +53,12 @@ protected:
 	
 	virtual ACList autoCompletitionList(const QStringList & scope, const QString & written) const {return ACList();}
 	virtual void parse() {}
+	QString selectArg(QString s, int arg);
+	void raiseHelp(QTextCursor tc, int arg = -1);
+	void hideHelp();
+	QTextCursor functionStart(QTextCursor tc, int * arg);
 	ACList wordsCompletitionList(const QString & written) const;
+	QPair<QStringList, QString> getScope(QTextCursor tc, bool * ok = 0);
 	static int skipRange(const QString & s, int pos, QChar oc, QChar cc, QChar sc = QChar());
 	static int skipCWord(const QString & s, int pos);
 	static bool matchWritten(QString s, QString w);
@@ -66,12 +74,13 @@ private:
 	};
 	
 	QPlainTextEdit * textCode, * textLines;
-	QTreeWidget completer;
-	QTextEdit::ExtraSelection es_line;
+	QTreeWidget * completer;
+	IconedLabel * lbl_help;
+	QTextEdit::ExtraSelection es_line, es_cursor;
 	QList<QTextEdit::ExtraSelection> es_selected, es_custom;
 	QMap<int, ACClass> ac_classes;
 	int prev_lc, auto_comp_pl, timer;
-	bool spaces_, _ignore_focus_out, _first;
+	bool spaces_, _ignore_focus_out, _first, _destructor;
 	
 	bool eventFilter(QObject * o, QEvent * e);
 	void showEvent(QShowEvent * );
@@ -81,6 +90,7 @@ private:
 	void previousCompletition();
 	
 private slots:
+	void syncScrolls();
 	void deleteLine();
 	void copyLineUp();
 	void copyLineDown();
@@ -89,7 +99,6 @@ private slots:
 	void indent();
 	void deindent();
 	void autoIndent();
-	void updateLines();
 	void invokeAutoCompletition(bool force = false);
 	void commitCompletition();
 	void textEdit_cursorPositionChanged();
@@ -97,6 +106,8 @@ private slots:
 	void textEdit_selectionChanged();
 	
 public slots:
+	void updateLines();
+	void scrollToTop();
 	void setFocus() {textCode->setFocus();}
 	void setText(const QString & t) {textCode->setPlainText(t);}
 	void setShowSpaces(bool yes);