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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the examples of the Qt Toolkit.

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    16 ** GNU Lesser General Public License Usage

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    38 ** $QT_END_LICENSE$

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    40 ****************************************************************************/

    41 

    42 

    43 #include "interfaces.h"

    44 #include "plugindialog.h"

    45 

    46 #include <QPluginLoader>

    47 #include <QStringList>

    48 #include <QDir>

    49 

    50 #include <QLabel>

    51 #include <QGridLayout>

    52 #include <QPushButton>

    53 #include <QTreeWidget>

    54 #include <QTreeWidgetItem>

    55 #include <QHeaderView>

    56 

    57 PluginDialog::PluginDialog(const QString &path, const QStringList &fileNames,

    58                            QWidget *parent) :

    59     QDialog(parent),

    60     label(new QLabel),

    61     treeWidget(new QTreeWidget),

    62     okButton(new QPushButton(tr("OK")))    

    63 {

    64     treeWidget->setAlternatingRowColors(false);

    65     treeWidget->setSelectionMode(QAbstractItemView::NoSelection);

    66     treeWidget->setColumnCount(1);

    67     treeWidget->header()->hide();

    68 

    69     okButton->setDefault(true);

    70 

    71     connect(okButton, SIGNAL(clicked()), this, SLOT(close()));

    72 

    73     QGridLayout *mainLayout = new QGridLayout;

    74     mainLayout->setColumnStretch(0, 1);

    75     mainLayout->setColumnStretch(2, 1);

    76     mainLayout->addWidget(label, 0, 0, 1, 3);

    77     mainLayout->addWidget(treeWidget, 1, 0, 1, 3);

    78     mainLayout->addWidget(okButton, 2, 1);

    79     setLayout(mainLayout);

    80 

    81     interfaceIcon.addPixmap(style()->standardPixmap(QStyle::SP_DirOpenIcon),

    82                             QIcon::Normal, QIcon::On);

    83     interfaceIcon.addPixmap(style()->standardPixmap(QStyle::SP_DirClosedIcon),

    84                             QIcon::Normal, QIcon::Off);

    85     featureIcon.addPixmap(style()->standardPixmap(QStyle::SP_FileIcon));

    86 

    87     setWindowTitle(tr("Plugin Information"));

    88     findPlugins(path, fileNames);

    89 }

    90 

    91 //! [0]

    92 void PluginDialog::findPlugins(const QString &path,

    93                                const QStringList &fileNames)

    94 {

    95     label->setText(tr("Plug & Paint found the following plugins\n"

    96                       "(looked in %1):")

    97                    .arg(QDir::toNativeSeparators(path)));

    98 

    99     const QDir dir(path);

   100 

   101     foreach (QObject *plugin, QPluginLoader::staticInstances())

   102         populateTreeWidget(plugin, tr("%1 (Static Plugin)")

   103                                    .arg(plugin->metaObject()->className()));

   104 

   105     foreach (QString fileName, fileNames) {

   106         QPluginLoader loader(dir.absoluteFilePath(fileName));

   107         QObject *plugin = loader.instance();

   108         if (plugin)

   109             populateTreeWidget(plugin, fileName);

   110     }

   111 }

   112 //! [0]

   113 

   114 //! [1]

   115 void PluginDialog::populateTreeWidget(QObject *plugin, const QString &text)

   116 {

   117     QTreeWidgetItem *pluginItem = new QTreeWidgetItem(treeWidget);

   118     pluginItem->setText(0, text);

   119     treeWidget->setItemExpanded(pluginItem, true);

   120 

   121     QFont boldFont = pluginItem->font(0);

   122     boldFont.setBold(true);

   123     pluginItem->setFont(0, boldFont);

   124 

   125     if (plugin) {

   126         BrushInterface *iBrush = qobject_cast<BrushInterface *>(plugin);

   127         if (iBrush)

   128             addItems(pluginItem, "BrushInterface", iBrush->brushes());

   129 

   130         ShapeInterface *iShape = qobject_cast<ShapeInterface *>(plugin);

   131         if (iShape)

   132             addItems(pluginItem, "ShapeInterface", iShape->shapes());

   133 

   134         FilterInterface *iFilter =

   135                 qobject_cast<FilterInterface *>(plugin);

   136         if (iFilter)

   137             addItems(pluginItem, "FilterInterface", iFilter->filters());

   138     }

   139 }

   140 //! [1]

   141 

   142 void PluginDialog::addItems(QTreeWidgetItem *pluginItem,

   143                             const char *interfaceName,

   144                             const QStringList &features)

   145 {

   146     QTreeWidgetItem *interfaceItem = new QTreeWidgetItem(pluginItem);

   147     interfaceItem->setText(0, interfaceName);

   148     interfaceItem->setIcon(0, interfaceIcon);

   149 

   150     foreach (QString feature, features) {

   151         if (feature.endsWith("..."))

   152             feature.chop(3);

   153         QTreeWidgetItem *featureItem = new QTreeWidgetItem(interfaceItem);

   154         featureItem->setText(0, feature);

   155         featureItem->setIcon(0, featureIcon);

   156     }

   157 }