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130 lines
4.7 KiB
C++
130 lines
4.7 KiB
C++
/***************************************************************************
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* Copyright 2009 by Jacopo De Simoi <wilderkde@gmail.com> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA . *
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***************************************************************************/
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#include "krunnerhistorycombobox.h"
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#include <QApplication>
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#include <QTimer>
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#include <KDebug>
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#include <KLineEdit>
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#include <KStandardShortcut>
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KrunnerHistoryComboBox::KrunnerHistoryComboBox(bool useCompletion, QWidget * parent)
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: KHistoryComboBox(useCompletion, parent),
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m_addingToHistory(false)
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{
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setPalette(QApplication::palette());
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setDuplicatesEnabled(false);
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setSizeAdjustPolicy(QComboBox::AdjustToMinimumContentsLengthWithIcon);
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// in theory, the widget should detect the direction from the content
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// but this is not available in Qt4.4/KDE 4.2, so the best default for this widget
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// is LTR: as it's more or less a "command line interface"
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// FIXME remove this code when KLineEdit has automatic direction detection of the "paragraph"
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setLayoutDirection(Qt::LeftToRight);
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}
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KrunnerHistoryComboBox::~KrunnerHistoryComboBox()
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{
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}
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void KrunnerHistoryComboBox::addToHistory(const QString & item)
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{
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m_addingToHistory = true;
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KHistoryComboBox::addToHistory(item);
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m_addingToHistory = false;
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}
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void KrunnerHistoryComboBox::setLineEdit(QLineEdit *e)
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{
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if (lineEdit()) {
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disconnect(lineEdit(), 0, this, 0);
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}
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KComboBox::setLineEdit(e);
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QTimer::singleShot(50, this, SLOT(connectLineEdit()));
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}
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void KrunnerHistoryComboBox::connectLineEdit()
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{
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disconnect(this, SIGNAL(currentIndexChanged(QString)), this, SLOT(currentIndexChanged(QString)));
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connect(this, SIGNAL(currentIndexChanged(QString)), this, SLOT(currentIndexChanged(QString)));
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if (lineEdit()) {
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disconnect(lineEdit(), SIGNAL(textEdited(QString)), this, SIGNAL(queryTextEdited(QString)));
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connect(lineEdit(), SIGNAL(textEdited(QString)), this, SIGNAL(queryTextEdited(QString)));
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}
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}
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void KrunnerHistoryComboBox::focusOutEvent(QFocusEvent *e)
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{
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discardCompletion();
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KHistoryComboBox::focusOutEvent(e);
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}
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void KrunnerHistoryComboBox::wheelEvent(QWheelEvent *e)
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{
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KHistoryComboBox::wheelEvent(e);
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emit queryTextEdited(lineEdit()->text());
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}
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void KrunnerHistoryComboBox::keyPressEvent(QKeyEvent *e)
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{
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if (e->key() == Qt::Key_Return || e->key() == Qt::Key_Enter) {
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discardCompletion();
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emit returnPressed();
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} else {
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KHistoryComboBox::keyPressEvent(e);
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}
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int event_key = e->key() | e->modifiers();
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if (KStandardShortcut::rotateUp().contains(event_key) ||
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KStandardShortcut::rotateDown().contains(event_key)) {
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emit queryTextEdited(lineEdit()->text());
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}
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}
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void KrunnerHistoryComboBox::discardCompletion()
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{
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//FIXME: find a reliable way to see if the scene is empty; now defaults to
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// never complete
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bool emptyScene = false;
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KLineEdit* edit = static_cast<KLineEdit*>(lineEdit());
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bool suggestedCompletion = (edit->text() != edit->userText());
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if (emptyScene && suggestedCompletion) {
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// We hit TAB with an empty scene and a suggested completion:
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// Complete but don't lose focus
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edit->setText(edit->text());
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} else if (suggestedCompletion) {
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// We hit TAB with a non-empty scene and a suggested completion:
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// Assume the user wants to switch input to the results scene and discard the completion
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edit->setText(edit->userText());
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}
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}
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void KrunnerHistoryComboBox::currentIndexChanged(const QString &item)
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{
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if (!m_addingToHistory) {
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emit queryTextEdited(item);
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}
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}
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#include "moc_krunnerhistorycombobox.cpp"
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