-/****************************************************************************
-**
-** Copyright (C) Qxt Foundation. Some rights reserved.
-**
-** This file is part of the QxtGui module of the Qt eXTension library
-**
-** This library is free software; you can redistribute it and/or modify it
-** under the terms of th Common Public License, version 1.0, as published by
-** IBM.
-**
-** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
-** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
-** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
-** FITNESS FOR A PARTICULAR PURPOSE.
-**
-** You should have received a copy of the CPL along with this file.
-** See the LICENSE file and the cpl1.0.txt file included with the source
-** distribution for more information. If you did not receive a copy of the
-** license, contact the Qxt Foundation.
-**
-** <http://libqxt.sourceforge.net> <foundation@libqxt.org>
-**
-****************************************************************************/
-#include "qxtcheckcombobox.h"
-#include "qxtcheckcombobox_p.h"
-#include <QStyleOptionButton>
-#include <QMouseEvent>
-#include <QLineEdit>
-#include <QTimer>
-
-QxtCheckComboBoxPrivate::QxtCheckComboBoxPrivate()
-{
- separator = QLatin1String(",");
-}
-
-void QxtCheckComboBoxPrivate::hidePopup()
-{
- qxt_p().hidePopup();
-}
-
-void QxtCheckComboBoxPrivate::updateCheckedItems()
-{
- checkedItems.clear();
- for (int i = 0; i < qxt_p().model()->rowCount(); ++i)
- {
- const QModelIndex& index = qxt_p().model()->index(i, 0);
- const QVariant& data = index.data(Qt::CheckStateRole);
- const Qt::CheckState state = static_cast<Qt::CheckState>(data.toInt());
- if (state == Qt::Checked)
- {
- checkedItems += index.data().toString();
- }
- }
-
- if (checkedItems.count() > 0)
- qxt_p().lineEdit()->setText(checkedItems.join(separator));
- else
- qxt_p().lineEdit()->setText(defaultText);
-
- // TODO: find a way to recalculate a meaningful size hint
-
- emit qxt_p().checkedItemsChanged(checkedItems);
-}
-
-QxtCheckComboView::QxtCheckComboView(QWidget* parent)
- : QListView(parent), mode(QxtCheckComboBox::CheckIndicator)
-{}
-
-QxtCheckComboView::~QxtCheckComboView()
-{}
-
-bool QxtCheckComboView::eventFilter(QObject* object, QEvent* event)
-{
- Q_UNUSED(object);
- if (event->type() == QEvent::MouseButtonRelease)
- {
- QMouseEvent* mouse = static_cast<QMouseEvent*>(event);
- const QModelIndex& index = indexAt(mouse->pos());
- if (index.isValid())
- {
- bool change = false;
- switch (mode)
- {
- case QxtCheckComboBox::CheckIndicator:
- change = handleIndicatorRelease(mouse, index);
- break;
-
- case QxtCheckComboBox::CheckWholeItem:
- change = handleItemRelease(mouse, index);
- break;
-
- default:
- qWarning("QxtCheckComboView::eventFilter(): unknown mode");
- break;
- }
-
- if (change)
- {
- // the check state is about to change, bypass
- // combobox and deliver the event just for the listview
- QListView::mouseReleaseEvent(mouse);
- }
- else
- {
- // otherwise it's ok to close
- emit hideRequested();
- }
- return true;
- }
- }
- return false;
-}
-
-bool QxtCheckComboView::handleIndicatorRelease(QMouseEvent* event, const QModelIndex& index)
-{
- // check if the mouse was released over the checkbox
- QStyleOptionButton option;
- option.QStyleOption::operator=(viewOptions());
- option.rect = visualRect(index);
- const QRect& rect = style()->subElementRect(QStyle::SE_ViewItemCheckIndicator, &option);
- return rect.contains(event->pos());
-}
-
-bool QxtCheckComboView::handleItemRelease(QMouseEvent* event, const QModelIndex& index)
-{
- // check if the mouse was released outside the checkbox
- QStyleOptionButton option;
- option.QStyleOption::operator=(viewOptions());
- option.rect = visualRect(index);
- const QRect& rect = style()->subElementRect(QStyle::SE_ViewItemCheckIndicator, &option);
- if (!rect.contains(event->pos()))
- {
- Qt::CheckState state = (Qt::CheckState) index.data(Qt::CheckStateRole).toInt();
- switch (state)
- {
- case Qt::Unchecked:
- state = Qt::Checked;
- break;
-
- case Qt::Checked:
- state = Qt::Unchecked;
- break;
-
- default:
- qWarning("QxtCheckComboView::handleItemRelease(): partially checked item");
- break;
- }
- model()->setData(index, state, Qt::CheckStateRole);
- }
- return true;
-}
-
-QxtCheckComboModel::QxtCheckComboModel(QObject* parent)
- : QStandardItemModel(0, 1, parent) // rows,cols
-{
-}
-
-QxtCheckComboModel::~QxtCheckComboModel()
-{}
-
-Qt::ItemFlags QxtCheckComboModel::flags(const QModelIndex& index) const
-{
- return QStandardItemModel::flags(index) | Qt::ItemIsUserCheckable;
-}
-
-QVariant QxtCheckComboModel::data(const QModelIndex& index, int role) const
-{
- QVariant value = QStandardItemModel::data(index, role);
- if (role == Qt::CheckStateRole && !value.isValid())
- value = Qt::Unchecked;
- return value;
-}
-
-bool QxtCheckComboModel::setData(const QModelIndex& index, const QVariant& value, int role)
-{
- bool ok = QStandardItemModel::setData(index, value, role);
- if (ok)
- {
- if (role == Qt::CheckStateRole)
- {
- emit checkStateChanged();
- }
- }
- return ok;
-}
-
-/*!
- \class QxtCheckComboBox QxtCheckComboBox
- \ingroup QxtGui
- \brief An extended QComboBox with checkable items.
-
- QxtComboBox is a specialized combo box with checkable items.
- Checked items are collected together in the line edit.
-
- \image html qxtcheckcombobox.png "QxtCheckComboBox in Plastique style."
- */
-
-/*!
- \enum QxtCheckComboBox::CheckMode
-
- This enum describes the check mode.
-
- \sa QxtCheckComboBox::checkMode
- */
-
-/*!
- \var QxtCheckComboBox::CheckMode QxtCheckComboBox::CheckIndicator
-
- The check state changes only via the check indicator (like in item views).
- */
-
-/*!
- \var QxtCheckComboBox::CheckMode QxtCheckComboBox::CheckWholeItem
-
- The check state changes via the whole item (like with a combo box).
- */
-
-/*!
- \fn QxtCheckComboBox::checkedItemsChanged(const QStringList& items)
-
- This signal is emitted whenever the checked items have been changed.
- */
-
-/*!
- Constructs a new QxtCheckComboBox with \a parent.
- */
-QxtCheckComboBox::QxtCheckComboBox(QWidget* parent) : QComboBox(parent)
-{
- QXT_INIT_PRIVATE(QxtCheckComboBox);
- QxtCheckComboModel* model = new QxtCheckComboModel(this);
- QxtCheckComboView* view = new QxtCheckComboView(this);
- qxt_d().view = view;
- setModel(model);
- setView(view);
-
- // these 2 lines below are important and must be
- // applied AFTER QComboBox::setView() because
- // QComboBox installs its own filter on the view
- view->installEventFilter(view); // <--- !!!
- view->viewport()->installEventFilter(view); // <--- !!!
-
- // read-only contents
- QLineEdit* lineEdit = new QLineEdit(this);
- lineEdit->setReadOnly(true);
- setLineEdit(lineEdit);
-
- connect(view, SIGNAL(hideRequested()), &qxt_d(), SLOT(hidePopup()));
- connect(model, SIGNAL(checkStateChanged()), &qxt_d(), SLOT(updateCheckedItems()));
- QTimer::singleShot(0, &qxt_d(), SLOT(updateCheckedItems()));
-}
-
-/*!
- Destructs the combo box.
- */
-QxtCheckComboBox::~QxtCheckComboBox()
-{}
-
-/*!
- Returns the check state of the item at \a index.
- */
-Qt::CheckState QxtCheckComboBox::itemCheckState(int index) const
-{
- return static_cast<Qt::CheckState>(itemData(index, Qt::CheckStateRole).toInt());
-}
-
-/*!
- Sets the check state of the item at \a index to \a state.
- */
-void QxtCheckComboBox::setItemCheckState(int index, Qt::CheckState state)
-{
- setItemData(index, state, Qt::CheckStateRole);
-}
-
-/*!
- \property QxtCheckComboBox::checkedItems
- \brief This property holds the checked items.
- */
-QStringList QxtCheckComboBox::checkedItems() const
-{
- return qxt_d().checkedItems;
-}
-
-void QxtCheckComboBox::setCheckedItems(const QStringList& items)
-{
- // not the most efficient solution but most likely nobody
- // will put too many items into a combo box anyway so...
- foreach (const QString& text, items)
- {
- const int index = findText(text);
- setItemCheckState(index, index != -1 ? Qt::Checked : Qt::Unchecked);
- }
-}
-
-/*!
- \property QxtCheckComboBox::defaultText
- \brief This property holds the default text.
-
- The default text is shown when there are no checked items.
- The default value is an empty string.
- */
-QString QxtCheckComboBox::defaultText() const
-{
- return qxt_d().defaultText;
-}
-
-void QxtCheckComboBox::setDefaultText(const QString& text)
-{
- if (qxt_d().defaultText != text)
- {
- qxt_d().defaultText = text;
- qxt_d().updateCheckedItems();
- }
-}
-
-/*!
- \property QxtCheckComboBox::separator
- \brief This property holds the default separator.
-
- The checked items are joined together with the separator string.
- The default value is a comma (",").
- */
-QString QxtCheckComboBox::separator() const
-{
- return qxt_d().separator;
-}
-
-void QxtCheckComboBox::setSeparator(const QString& separator)
-{
- if (qxt_d().separator != separator)
- {
- qxt_d().separator = separator;
- qxt_d().updateCheckedItems();
- }
-}
-
-/*!
- \property QxtCheckComboBox::checkMode
- \brief This property holds the check mode.
-
- The check mode describes item checking behaviour.
- The default value is \b QxtCheckComboBox::CheckIndicator.
-
- \sa QxtCheckComboBox::CheckMode
- */
-QxtCheckComboBox::CheckMode QxtCheckComboBox::checkMode() const
-{
- return qxt_d().view->mode;
-}
-
-void QxtCheckComboBox::setCheckMode(QxtCheckComboBox::CheckMode mode)
-{
- if (qxt_d().view->mode != mode)
- {
- qxt_d().view->mode = mode;
- }
-}
-
-void QxtCheckComboBox::keyPressEvent(QKeyEvent* event)
-{
- if (event->key() != Qt::Key_Up && event->key() != Qt::Key_Down)
- {
- QComboBox::keyPressEvent(event);
- }
- else
- {
- showPopup();
- }
-}
-
-void QxtCheckComboBox::keyReleaseEvent(QKeyEvent* event)
-{
- if (event->key() != Qt::Key_Up && event->key() != Qt::Key_Down)
- {
- QComboBox::keyReleaseEvent(event);
- }
- else
- {
- showPopup();
- }
-}
projects / quassel.git / blobdiff