QCodeEdit completer refactor and works fine!

libs/widgets/qcodeedit.cpp

@@ -1,4 +1,5 @@
 #include "qcodeedit.h"
+#include "qcodeedit_completer_p.h"
 #include <QLayout>
 #include <QBoxLayout>
 #include <QScrollBar>
@@ -9,7 +10,6 @@
 #include <QTextBlock>
 #include <QAction>
 #include <QApplication>
-#include <QHeaderView>
 #if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
 #  include <QWindow>
 #endif
@@ -54,21 +54,7 @@ QCodeEdit::QCodeEdit(QWidget * parent): QWidget(parent) {
 	}
 	lbl_help[1]->setIcon(QIcon(":/icons/f1.png"));
 	lbl_help[1]->setText(tr("Press F1 for details"));
-	completer = new QTreeWidget();
-	completer->setWindowFlags(Qt::Tool | Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint);
-	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 = new QCodeEditCompleter();
 
 	ui->textCode->setCursorWidth(qMax<int>(qRound(fontHeight() / 10.), 1));
 	ui->textLines->viewport()->setAutoFillBackground(false);
@@ -447,7 +433,7 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 					break;
 				case Qt::Key_Up:
 					if (completer->isVisible()) {
-						previousCompletition();
+						completer->previousCompletition();
 						return true;
 					}
 					completer->hide();
@@ -463,7 +449,7 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 					break;
 				case Qt::Key_Down:
 					if (completer->isVisible()) {
-						nextCompletition();
+						completer->nextCompletition();
 						return true;
 					}
 					completer->hide();
@@ -646,30 +632,6 @@ void QCodeEdit::applyExtraSelection() {
 }
 
 
-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));
-	else {
-		if (ci >= completer->topLevelItemCount() - 2) return;
-		completer->setCurrentItem(completer->topLevelItem(ci + 2));
-	}
-}
-
-
-void QCodeEdit::previousCompletition() {
-	int ci = completer->currentIndex().row();
-	if (ci <= 0) return;
-	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));
-	}
-}
-
-
 void QCodeEdit::clearSearch() {
 	es_search_list.clear();
 	applyExtraSelection();
@@ -1275,47 +1237,16 @@ void QCodeEdit::invokeAutoCompletition(bool force) {
 	foreach (const ACPair & ac, acl) {
 		if (ac.second.isEmpty()) continue;
 		ACClass acc = ac_classes.value(ac.first);
-		QTreeWidgetItem * gi = new QTreeWidgetItem();
-		gi->setText(0, acc.name);
-		gi->setTextAlignment(0, Qt::AlignCenter);
-		gi->setTextAlignment(1, Qt::AlignCenter);
-		gi->setFont(0, bf);
-		gi->setBackground(0, Qt::lightGray);
-		gi->setFlags(Qt::ItemIsEnabled);
-		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->addItems(bf, acc, ac);
 	}
-	if (completer->topLevelItemCount() > 1)
-		completer->setCurrentItem(completer->topLevelItem(1));
-	if (completer->isHidden())
-		completer->move(ui->textCode->mapToGlobal(ui->textCode->cursorRect().bottomRight()));
-	if (completer->topLevelItemCount() > 0) {
-		completer->setVisible(true);
-		//qApp->processEvents();
-		int sz = completer->verticalScrollBar()->width();
-		sz += completer->sizeHint().width();
-//		int sz = ((QAbstractItemView*)completer)->viewport()->width();
-//		for (int i = 0; i < completer->header()->count(); ++i) {
-//			completer->resizeColumnToContents(i);
-//			sz += completer->columnWidth(i);
-//		}
-		completer->resize(sz, fontHeight() * 16);
-	} else
-		completer->hide();
+	completer->invoke(ui->textCode->mapToGlobal(ui->textCode->cursorRect().bottomRight()));
 }
 
 
 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);
+	QString ins = completer->currentValue(), ret = completer->currentReturn();
 	QTextCursor tc = ui->textCode->textCursor(), stc = tc;
 	tc.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor);
 	bool ins_br = true, shifted = false;
@@ -1355,16 +1286,16 @@ void QCodeEdit::commitCompletition() {
 				tc.movePosition(QTextCursor::Left, QTextCursor::MoveAnchor, 2);
 			}
 		}
-		if (ins.endsWith(")") && !completer->currentItem()->text(1).endsWith("()")) {
+		if (ins.endsWith(")") && !completer->currentValue().endsWith("()")) {
 			tc.movePosition(QTextCursor::Left);
 			ui->textCode->setTextCursor(tc);
 		}
 	} else {
-		if (completer->currentItem()->text(1).endsWith(")")) {
+		if (completer->currentValue().endsWith(")")) {
 			tc.movePosition(QTextCursor::Right);
 			ui->textCode->setTextCursor(tc);
 		}
-		if (completer->currentItem()->text(1).endsWith("()")) {
+		if (completer->currentValue().endsWith("()")) {
 			tc.movePosition(QTextCursor::Right);
 			ui->textCode->setTextCursor(tc);
 		}

libs/widgets/qcodeedit.h

@@ -31,6 +31,8 @@ namespace Ui {
 	class QCodeEdit;
 }
 
+class QCodeEditCompleter;
+
 
 class QAD_WIDGETS_EXPORT QCodeEdit: public QWidget
 {
@@ -40,6 +42,8 @@ class QAD_WIDGETS_EXPORT QCodeEdit: public QWidget
 	Q_PROPERTY(bool showLineNumbers READ showLineNumbers WRITE setShowLineNumbers)
 	Q_PROPERTY(bool wordCompletitionEnabled READ wordCompletitionEnabled WRITE setWordCompletitionEnabled)
 	Q_PROPERTY(QFont editorFont READ editorFont WRITE setEditorFont)
+
+	friend class QCodeEditCompleter;
 	
 public:
 	QCodeEdit(QWidget * parent = 0);
@@ -105,7 +109,7 @@ private:
 		QIcon icon;
 	};
 	
-	QTreeWidget * completer;
+	QCodeEditCompleter * completer;
 	IconedLabel * lbl_help[2];
 	QFrame * widget_help;
 	QTextEdit::ExtraSelection es_line, es_cursor, es_bracket, es_range, es_search;
@@ -123,8 +127,6 @@ private:
 	void changeEvent(QEvent * e);
 	void highlightBrackets();
 	void applyExtraSelection();
-	void nextCompletition();
-	void previousCompletition();
 	void clearSearch();
 	void moveToSearch();
 	int searchIndFromCursor();

libs/widgets/qcodeedit_completer_p.cpp

@@ -0,0 +1,106 @@
+#include "qcodeedit_completer_p.h"
+#include <QHeaderView>
+
+
+QCodeEditCompleter::QCodeEditCompleter(QWidget * parent): QTreeWidget(parent) {
+	setWindowFlags(Qt::Tool | Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint);
+	setFocusPolicy(Qt::NoFocus);
+	setColumnCount(2);
+	setRootIsDecorated(false);
+	setHeaderHidden(true);
+	setSizeAdjustPolicy(QAbstractScrollArea::AdjustToContents);
+	setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
+	header()->setDefaultAlignment(Qt::AlignCenter);
+	header()->
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+			setSectionResizeMode
+#else
+			setResizeMode
+#endif
+				(QHeaderView::ResizeToContents);
+	header()->setStretchLastSection(false);
+	//connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(adjust()));
+}
+
+
+QCodeEditCompleter::~QCodeEditCompleter() {
+}
+
+
+void QCodeEditCompleter::nextCompletition() {
+	int ci = currentIndex().row();
+	if (ci >= topLevelItemCount() - 1) return;
+	if (topLevelItem(ci + 1)->flags().testFlag(Qt::ItemIsSelectable))
+		setCurrentItem(topLevelItem(ci + 1));
+	else {
+		if (ci >= topLevelItemCount() - 2) return;
+		setCurrentItem(topLevelItem(ci + 2));
+	}
+}
+
+
+void QCodeEditCompleter::previousCompletition() {
+	int ci = currentIndex().row();
+	if (ci <= 0) return;
+	if (topLevelItem(ci - 1)->flags().testFlag(Qt::ItemIsSelectable))
+		setCurrentItem(topLevelItem(ci - 1));
+	else {
+		if (ci <= 1) return;
+		setCurrentItem(topLevelItem(ci - 2));
+	}
+}
+
+void QCodeEditCompleter::addItems(QFont f, const QCodeEdit::ACClass & cl, const QCodeEdit::ACPair & items) {
+	QTreeWidgetItem * gi = new QTreeWidgetItem();
+	gi->setText(0, cl.name);
+	gi->setTextAlignment(0, Qt::AlignCenter);
+	gi->setTextAlignment(1, Qt::AlignCenter);
+	gi->setFont(0, f);
+	gi->setBackground(0, Qt::lightGray);
+	gi->setFlags(Qt::ItemIsEnabled);
+	addTopLevelItem(gi);
+	gi->setFirstColumnSpanned(true);
+	foreach (const auto & s, items.second) {
+		QTreeWidgetItem * ni = new QTreeWidgetItem();
+		ni->setIcon(0, cl.icon);
+		ni->setText(0, s.first);
+		ni->setText(1, s.second);
+		addTopLevelItem(ni);
+	}
+}
+
+
+bool QCodeEditCompleter::isEmpty() const {
+	return topLevelItemCount() <= 1;
+}
+
+
+void QCodeEditCompleter::invoke(QPoint global_pos) {
+	if (isEmpty()) {
+		hide();
+		return;
+	}
+	setCurrentItem(topLevelItem(1));
+	if (isHidden())
+		move(global_pos);
+	setVisible(true);
+	adjust();
+}
+
+
+QString QCodeEditCompleter::currentReturn() const {
+	if (!currentItem()) return QString();
+	return currentItem()->text(0);
+}
+
+
+QString QCodeEditCompleter::currentValue() const {
+	if (!currentItem()) return QString();
+	return currentItem()->text(1);
+}
+
+
+void QCodeEditCompleter::adjust() {
+	int sz = sizeHint().width();
+	resize(sz, fontHeight() * 16);
+}

libs/widgets/qcodeedit_completer_p.h

@@ -0,0 +1,53 @@
+/*
+	QAD - Qt ADvanced
+
+	Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Lesser General Public License as published by
+	the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef QCODEEDIT_COMPLETER_P_H
+#define QCODEEDIT_COMPLETER_P_H
+
+#include <QTreeWidget>
+#include "qcodeedit.h"
+
+
+class QCodeEditCompleter: public QTreeWidget
+{
+	Q_OBJECT
+public:
+	QCodeEditCompleter(QWidget * parent = 0);
+	~QCodeEditCompleter();
+
+	void nextCompletition();
+	void previousCompletition();
+	void addItems(QFont f, const QCodeEdit::ACClass & cl, const QCodeEdit::ACPair & items);
+	bool isEmpty() const;
+	void invoke(QPoint global_pos);
+
+	QString currentReturn() const;
+	QString currentValue() const;
+
+private:
+
+private slots:
+	void adjust();
+
+signals:
+	
+};
+
+
+#endif // QCODEEDIT_COMPLETER_P_H