/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the examples of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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#include "interfaces.h"+
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#include "plugindialog.h"+
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+
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#include <QPluginLoader>+
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#include <QStringList>+
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#include <QDir>+
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+
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#include <QLabel>+
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#include <QGridLayout>+
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#include <QPushButton>+
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#include <QTreeWidget>+
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#include <QTreeWidgetItem>+
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#include <QHeaderView>+
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+
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PluginDialog::PluginDialog(const QString &path, const QStringList &fileNames,+
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                           QWidget *parent) :+
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    QDialog(parent),+
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    label(new QLabel),+
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    treeWidget(new QTreeWidget),+
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    okButton(new QPushButton(tr("OK")))    +
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{+
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    treeWidget->setAlternatingRowColors(false);+
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    treeWidget->setSelectionMode(QAbstractItemView::NoSelection);+
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    treeWidget->setColumnCount(1);+
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    treeWidget->header()->hide();+
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+
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    okButton->setDefault(true);+
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+
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    connect(okButton, SIGNAL(clicked()), this, SLOT(close()));+
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+
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    QGridLayout *mainLayout = new QGridLayout;+
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    mainLayout->setColumnStretch(0, 1);+
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    mainLayout->setColumnStretch(2, 1);+
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    mainLayout->addWidget(label, 0, 0, 1, 3);+
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    mainLayout->addWidget(treeWidget, 1, 0, 1, 3);+
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    mainLayout->addWidget(okButton, 2, 1);+
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    setLayout(mainLayout);+
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+
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    interfaceIcon.addPixmap(style()->standardPixmap(QStyle::SP_DirOpenIcon),+
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                            QIcon::Normal, QIcon::On);+
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    interfaceIcon.addPixmap(style()->standardPixmap(QStyle::SP_DirClosedIcon),+
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                            QIcon::Normal, QIcon::Off);+
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    featureIcon.addPixmap(style()->standardPixmap(QStyle::SP_FileIcon));+
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+
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    setWindowTitle(tr("Plugin Information"));+
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    findPlugins(path, fileNames);+
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}+
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+
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//! [0]+
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void PluginDialog::findPlugins(const QString &path,+
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                               const QStringList &fileNames)+
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{+
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    label->setText(tr("Plug & Paint found the following plugins\n"+
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                      "(looked in %1):")+
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                   .arg(QDir::toNativeSeparators(path)));+
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+
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    const QDir dir(path);+
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+
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    foreach (QObject *plugin, QPluginLoader::staticInstances())+
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        populateTreeWidget(plugin, tr("%1 (Static Plugin)")+
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                                   .arg(plugin->metaObject()->className()));+
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+
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    foreach (QString fileName, fileNames) {+
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        QPluginLoader loader(dir.absoluteFilePath(fileName));+
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        QObject *plugin = loader.instance();+
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        if (plugin)+
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            populateTreeWidget(plugin, fileName);+
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    }+
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}+
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//! [0]+
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+
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//! [1]+
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void PluginDialog::populateTreeWidget(QObject *plugin, const QString &text)+
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{+
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    QTreeWidgetItem *pluginItem = new QTreeWidgetItem(treeWidget);+
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    pluginItem->setText(0, text);+
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    treeWidget->setItemExpanded(pluginItem, true);+
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+
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    QFont boldFont = pluginItem->font(0);+
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    boldFont.setBold(true);+
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    pluginItem->setFont(0, boldFont);+
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+
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    if (plugin) {+
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        BrushInterface *iBrush = qobject_cast<BrushInterface *>(plugin);+
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        if (iBrush)+
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            addItems(pluginItem, "BrushInterface", iBrush->brushes());+
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+
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        ShapeInterface *iShape = qobject_cast<ShapeInterface *>(plugin);+
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        if (iShape)+
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            addItems(pluginItem, "ShapeInterface", iShape->shapes());+
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+
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        FilterInterface *iFilter =+
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                qobject_cast<FilterInterface *>(plugin);+
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        if (iFilter)+
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            addItems(pluginItem, "FilterInterface", iFilter->filters());+
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    }+
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}+
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//! [1]+
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+
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void PluginDialog::addItems(QTreeWidgetItem *pluginItem,+
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                            const char *interfaceName,+
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                            const QStringList &features)+
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{+
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    QTreeWidgetItem *interfaceItem = new QTreeWidgetItem(pluginItem);+
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    interfaceItem->setText(0, interfaceName);+
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    interfaceItem->setIcon(0, interfaceIcon);+
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+
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    foreach (QString feature, features) {+
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        if (feature.endsWith("..."))+
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            feature.chop(3);+
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        QTreeWidgetItem *featureItem = new QTreeWidgetItem(interfaceItem);+
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        featureItem->setText(0, feature);+
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        featureItem->setIcon(0, featureIcon);+
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    }+
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}+
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