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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:18:55 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:18:55 (GMT)
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /examples/painting/fontsampler
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Long live Qt 4.5!
Diffstat (limited to 'examples/painting/fontsampler')
-rw-r--r--examples/painting/fontsampler/fontsampler.pro10
-rw-r--r--examples/painting/fontsampler/main.cpp52
-rw-r--r--examples/painting/fontsampler/mainwindow.cpp373
-rw-r--r--examples/painting/fontsampler/mainwindow.h83
-rw-r--r--examples/painting/fontsampler/mainwindowbase.ui140
5 files changed, 658 insertions, 0 deletions
diff --git a/examples/painting/fontsampler/fontsampler.pro b/examples/painting/fontsampler/fontsampler.pro
new file mode 100644
index 0000000..8b63752
--- /dev/null
+++ b/examples/painting/fontsampler/fontsampler.pro
@@ -0,0 +1,10 @@
+FORMS = mainwindowbase.ui
+HEADERS = mainwindow.h
+SOURCES = main.cpp \
+ mainwindow.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/painting/fontsampler
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS fontsampler.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/painting/fontsampler
+INSTALLS += target sources
diff --git a/examples/painting/fontsampler/main.cpp b/examples/painting/fontsampler/main.cpp
new file mode 100644
index 0000000..1d51376
--- /dev/null
+++ b/examples/painting/fontsampler/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+
+#include "mainwindow.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ MainWindow window;
+ window.show();
+ return app.exec();
+}
diff --git a/examples/painting/fontsampler/mainwindow.cpp b/examples/painting/fontsampler/mainwindow.cpp
new file mode 100644
index 0000000..424f175
--- /dev/null
+++ b/examples/painting/fontsampler/mainwindow.cpp
@@ -0,0 +1,373 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "mainwindow.h"
+
+MainWindow::MainWindow(QWidget *parent)
+ : QMainWindow(parent)
+{
+ setupUi(this);
+
+ sampleSizes << 32 << 24 << 16 << 14 << 12 << 8 << 4 << 2 << 1;
+ markedCount = 0;
+ setupFontTree();
+
+ connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
+ connect(fontTree, SIGNAL(currentItemChanged(QTreeWidgetItem *, QTreeWidgetItem *)),
+ this, SLOT(showFont(QTreeWidgetItem *)));
+ connect(fontTree, SIGNAL(itemChanged(QTreeWidgetItem *, int)),
+ this, SLOT(updateStyles(QTreeWidgetItem *, int)));
+
+ fontTree->setItemSelected(fontTree->topLevelItem(0), true);
+ showFont(fontTree->topLevelItem(0));
+}
+
+void MainWindow::setupFontTree()
+{
+ QFontDatabase database;
+ fontTree->setColumnCount(1);
+ fontTree->setHeaderLabels(QStringList() << tr("Font"));
+
+ foreach (QString family, database.families()) {
+ const QStringList styles = database.styles(family);
+ if (styles.isEmpty())
+ continue;
+
+ QTreeWidgetItem *familyItem = new QTreeWidgetItem(fontTree);
+ familyItem->setText(0, family);
+ familyItem->setCheckState(0, Qt::Unchecked);
+
+ foreach (QString style, styles) {
+ QTreeWidgetItem *styleItem = new QTreeWidgetItem(familyItem);
+ styleItem->setText(0, style);
+ styleItem->setCheckState(0, Qt::Unchecked);
+ styleItem->setData(0, Qt::UserRole,
+ QVariant(database.weight(family, style)));
+ styleItem->setData(0, Qt::UserRole + 1,
+ QVariant(database.italic(family, style)));
+ }
+ }
+}
+
+void MainWindow::on_clearAction_triggered()
+{
+ QTreeWidgetItem *currentItem = fontTree->currentItem();
+ foreach (QTreeWidgetItem *item, fontTree->selectedItems())
+ fontTree->setItemSelected(item, false);
+ fontTree->setItemSelected(currentItem, true);
+}
+
+void MainWindow::on_markAction_triggered()
+{
+ markUnmarkFonts(Qt::Checked);
+}
+
+void MainWindow::on_unmarkAction_triggered()
+{
+ markUnmarkFonts(Qt::Unchecked);
+}
+
+void MainWindow::markUnmarkFonts(Qt::CheckState state)
+{
+ QList<QTreeWidgetItem *> items = fontTree->selectedItems();
+ foreach (QTreeWidgetItem *item, items) {
+ if (item->checkState(0) != state)
+ item->setCheckState(0, state);
+ }
+}
+
+void MainWindow::showFont(QTreeWidgetItem *item)
+{
+ if (!item)
+ return;
+
+ QString family;
+ QString style;
+ int weight;
+ bool italic;
+
+ if (item->parent()) {
+ family = item->parent()->text(0);
+ style = item->text(0);
+ weight = item->data(0, Qt::UserRole).toInt();
+ italic = item->data(0, Qt::UserRole + 1).toBool();
+ } else {
+ family = item->text(0);
+ style = item->child(0)->text(0);
+ weight = item->child(0)->data(0, Qt::UserRole).toInt();
+ italic = item->child(0)->data(0, Qt::UserRole + 1).toBool();
+ }
+
+ QString oldText = textEdit->toPlainText().trimmed();
+ bool modified = textEdit->document()->isModified();
+ textEdit->clear();
+ textEdit->document()->setDefaultFont(QFont(family, 32, weight, italic));
+
+ QTextCursor cursor = textEdit->textCursor();
+ QTextBlockFormat blockFormat;
+ blockFormat.setAlignment(Qt::AlignCenter);
+ cursor.insertBlock(blockFormat);
+
+ if (modified)
+ cursor.insertText(QString(oldText));
+ else
+ cursor.insertText(QString("%1 %2").arg(family).arg(style));
+
+ textEdit->document()->setModified(modified);
+}
+
+void MainWindow::updateStyles(QTreeWidgetItem *item, int column)
+{
+ if (!item || column != 0)
+ return;
+
+ Qt::CheckState state = item->checkState(0);
+ QTreeWidgetItem *parent = item->parent();
+
+ if (parent) {
+
+ // Only count style items.
+ if (state == Qt::Checked)
+ ++markedCount;
+ else
+ --markedCount;
+
+ if (state == Qt::Checked &&
+ parent->checkState(0) == Qt::Unchecked) {
+ // Mark parent items when child items are checked.
+ parent->setCheckState(0, Qt::Checked);
+
+ } else if (state == Qt::Unchecked &&
+ parent->checkState(0) == Qt::Checked) {
+
+ bool marked = false;
+ for (int row = 0; row < parent->childCount(); ++row) {
+ if (parent->child(row)->checkState(0) == Qt::Checked) {
+ marked = true;
+ break;
+ }
+ }
+ // Unmark parent items when all child items are unchecked.
+ if (!marked)
+ parent->setCheckState(0, Qt::Unchecked);
+ }
+ } else {
+ int row;
+ int number = 0;
+ for (row = 0; row < item->childCount(); ++row) {
+ if (item->child(row)->checkState(0) == Qt::Checked)
+ ++number;
+ }
+
+ // Mark/unmark all child items when marking/unmarking top-level
+ // items.
+ if (state == Qt::Checked && number == 0) {
+ for (row = 0; row < item->childCount(); ++row) {
+ if (item->child(row)->checkState(0) == Qt::Unchecked)
+ item->child(row)->setCheckState(0, Qt::Checked);
+ }
+ } else if (state == Qt::Unchecked && number > 0) {
+ for (row = 0; row < item->childCount(); ++row) {
+ if (item->child(row)->checkState(0) == Qt::Checked)
+ item->child(row)->setCheckState(0, Qt::Unchecked);
+ }
+ }
+ }
+
+ printAction->setEnabled(markedCount > 0);
+ printPreviewAction->setEnabled(markedCount > 0);
+}
+
+void MainWindow::on_printAction_triggered()
+{
+ pageMap = currentPageMap();
+
+ if (pageMap.count() == 0)
+ return;
+
+ QPrinter printer(QPrinter::HighResolution);
+ QPrintDialog dialog(&printer, this);
+ if (dialog.exec() != QDialog::Accepted)
+ return;
+
+ int from = printer.fromPage();
+ int to = printer.toPage();
+ if (from <= 0 && to <= 0)
+ printer.setFromTo(1, pageMap.keys().count());
+
+ printDocument(&printer);
+}
+
+void MainWindow::printDocument(QPrinter *printer)
+{
+ printer->setFromTo(1, pageMap.count());
+
+ QProgressDialog progress(tr("Preparing font samples..."), tr("&Cancel"),
+ 0, pageMap.count(), this);
+ progress.setWindowModality(Qt::ApplicationModal);
+ progress.setWindowTitle(tr("Font Sampler"));
+ progress.setMinimum(printer->fromPage() - 1);
+ progress.setMaximum(printer->toPage());
+
+ QPainter painter;
+ painter.begin(printer);
+ bool firstPage = true;
+
+ for (int page = printer->fromPage(); page <= printer->toPage(); ++page) {
+
+ if (!firstPage)
+ printer->newPage();
+
+ qApp->processEvents();
+ if (progress.wasCanceled())
+ break;
+
+ printPage(page - 1, &painter, printer);
+ progress.setValue(page);
+ firstPage = false;
+ }
+
+ painter.end();
+}
+
+void MainWindow::on_printPreviewAction_triggered()
+{
+ pageMap = currentPageMap();
+
+ if (pageMap.count() == 0)
+ return;
+
+ QPrinter printer(QPrinter::HighResolution);
+ QPrintPreviewDialog preview(&printer, this);
+ connect(&preview, SIGNAL(paintRequested(QPrinter *)),
+ this, SLOT(printDocument(QPrinter *)));
+ preview.exec();
+}
+
+QMap<QString, StyleItems> MainWindow::currentPageMap()
+{
+ QMap<QString, StyleItems> pageMap;
+
+ for (int row = 0; row < fontTree->topLevelItemCount(); ++row) {
+ QTreeWidgetItem *familyItem = fontTree->topLevelItem(row);
+ QString family;
+
+ if (familyItem->checkState(0) == Qt::Checked) {
+ family = familyItem->text(0);
+ pageMap[family] = StyleItems();
+ }
+
+ for (int childRow = 0; childRow < familyItem->childCount(); ++childRow) {
+ QTreeWidgetItem *styleItem = familyItem->child(childRow);
+ if (styleItem->checkState(0) == Qt::Checked)
+ pageMap[family].append(styleItem);
+ }
+ }
+
+ return pageMap;
+}
+
+void MainWindow::printPage(int index, QPainter *painter, QPrinter *printer)
+{
+ QString family = pageMap.keys()[index];
+ StyleItems items = pageMap[family];
+
+ // Find the dimensions of the text on each page.
+ qreal width = 0.0;
+ qreal height = 0.0;
+ foreach (QTreeWidgetItem *item, items) {
+ QString style = item->text(0);
+ int weight = item->data(0, Qt::UserRole).toInt();
+ bool italic = item->data(0, Qt::UserRole + 1).toBool();
+
+ // Calculate the maximum width and total height of the text.
+ foreach (int size, sampleSizes) {
+ QFont font(family, size, weight, italic);
+ font = QFont(font, painter->device());
+ QFontMetricsF fontMetrics(font);
+ QRectF rect = fontMetrics.boundingRect(
+ QString("%1 %2").arg(family).arg(style));
+ width = qMax(rect.width(), width);
+ height += rect.height();
+ }
+ }
+
+ qreal xScale = printer->pageRect().width() / width;
+ qreal yScale = printer->pageRect().height() / height;
+ qreal scale = qMin(xScale, yScale);
+
+ qreal remainingHeight = printer->pageRect().height()/scale - height;
+ qreal spaceHeight = (remainingHeight/4.0) / (items.count() + 1);
+ qreal interLineHeight = (remainingHeight/4.0) / (sampleSizes.count() * items.count());
+
+ painter->save();
+ painter->translate(printer->pageRect().width()/2.0, printer->pageRect().height()/2.0);
+ painter->scale(scale, scale);
+ painter->setBrush(QBrush(Qt::black));
+
+ qreal x = -width/2.0;
+ qreal y = -height/2.0 - remainingHeight/4.0 + spaceHeight;
+
+ foreach (QTreeWidgetItem *item, items) {
+ QString style = item->text(0);
+ int weight = item->data(0, Qt::UserRole).toInt();
+ bool italic = item->data(0, Qt::UserRole + 1).toBool();
+
+ // Draw each line of text.
+ foreach (int size, sampleSizes) {
+ QFont font(family, size, weight, italic);
+ font = QFont(font, painter->device());
+ QFontMetricsF fontMetrics(font);
+ QRectF rect = fontMetrics.boundingRect(QString("%1 %2").arg(
+ font.family()).arg(style));
+ y += rect.height();
+ painter->setFont(font);
+ painter->drawText(QPointF(x, y),
+ QString("%1 %2").arg(family).arg(style));
+ y += interLineHeight;
+ }
+ y += spaceHeight;
+ }
+
+ painter->restore();
+}
diff --git a/examples/painting/fontsampler/mainwindow.h b/examples/painting/fontsampler/mainwindow.h
new file mode 100644
index 0000000..25d7730
--- /dev/null
+++ b/examples/painting/fontsampler/mainwindow.h
@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include "ui_mainwindowbase.h"
+
+QT_BEGIN_NAMESPACE
+class QTextEdit;
+class QTreeWidget;
+class QTreeWidgetItem;
+QT_END_NAMESPACE
+
+typedef QList<QTreeWidgetItem *> StyleItems;
+
+class MainWindow : public QMainWindow, private Ui::MainWindowBase
+{
+ Q_OBJECT
+
+public:
+ MainWindow(QWidget *parent = 0);
+
+public slots:
+ void on_clearAction_triggered();
+ void on_markAction_triggered();
+ void on_printAction_triggered();
+ void on_printPreviewAction_triggered();
+ void on_unmarkAction_triggered();
+ void printDocument(QPrinter *printer);
+ void printPage(int index, QPainter *painter, QPrinter *printer);
+ void showFont(QTreeWidgetItem *item);
+ void updateStyles(QTreeWidgetItem *item, int column);
+
+private:
+ QMap<QString, StyleItems> currentPageMap();
+ void markUnmarkFonts(Qt::CheckState state);
+ void setupFontTree();
+
+ QList<int> sampleSizes;
+ QMap<QString, StyleItems> pageMap;
+ int markedCount;
+};
+
+#endif
diff --git a/examples/painting/fontsampler/mainwindowbase.ui b/examples/painting/fontsampler/mainwindowbase.ui
new file mode 100644
index 0000000..6545b34
--- /dev/null
+++ b/examples/painting/fontsampler/mainwindowbase.ui
@@ -0,0 +1,140 @@
+<ui version="4.0" >
+ <author></author>
+ <comment></comment>
+ <exportmacro></exportmacro>
+ <class>MainWindowBase</class>
+ <widget class="QMainWindow" name="MainWindowBase" >
+ <property name="geometry" >
+ <rect>
+ <x>0</x>
+ <y>0</y>
+ <width>800</width>
+ <height>345</height>
+ </rect>
+ </property>
+ <property name="windowTitle" >
+ <string>Font Sampler</string>
+ </property>
+ <widget class="QWidget" name="centralwidget" >
+ <layout class="QVBoxLayout" >
+ <property name="margin" >
+ <number>9</number>
+ </property>
+ <property name="spacing" >
+ <number>6</number>
+ </property>
+ <item>
+ <widget class="QTextEdit" name="textEdit" />
+ </item>
+ </layout>
+ </widget>
+ <widget class="QMenuBar" name="menubar" >
+ <property name="geometry" >
+ <rect>
+ <x>0</x>
+ <y>0</y>
+ <width>800</width>
+ <height>24</height>
+ </rect>
+ </property>
+ <widget class="QMenu" name="menu_Selection" >
+ <property name="title" >
+ <string>&amp;Selection</string>
+ </property>
+ <addaction name="markAction" />
+ <addaction name="unmarkAction" />
+ <addaction name="clearAction" />
+ </widget>
+ <widget class="QMenu" name="menu_File" >
+ <property name="title" >
+ <string>&amp;File</string>
+ </property>
+ <addaction name="printPreviewAction" />
+ <addaction name="printAction" />
+ <addaction name="quitAction" />
+ </widget>
+ <addaction name="menu_File" />
+ <addaction name="menu_Selection" />
+ </widget>
+ <widget class="QStatusBar" name="statusbar" />
+ <widget class="QDockWidget" name="dockWidget" >
+ <property name="features" >
+ <set>QDockWidget::DockWidgetFloatable|QDockWidget::DockWidgetMovable|QDockWidget::NoDockWidgetFeatures</set>
+ </property>
+ <property name="windowTitle" >
+ <string>Available Fonts</string>
+ </property>
+ <attribute name="dockWidgetArea" >
+ <number>1</number>
+ </attribute>
+ <widget class="QWidget" name="dockWidgetContents" >
+ <layout class="QVBoxLayout" >
+ <property name="margin" >
+ <number>9</number>
+ </property>
+ <property name="spacing" >
+ <number>6</number>
+ </property>
+ <item>
+ <widget class="QTreeWidget" name="fontTree" >
+ <property name="selectionMode" >
+ <enum>QAbstractItemView::ExtendedSelection</enum>
+ </property>
+ </widget>
+ </item>
+ </layout>
+ </widget>
+ </widget>
+ <action name="printAction" >
+ <property name="enabled" >
+ <bool>false</bool>
+ </property>
+ <property name="text" >
+ <string>&amp;Print...</string>
+ </property>
+ <property name="shortcut" >
+ <string>Ctrl+P</string>
+ </property>
+ </action>
+ <action name="quitAction" >
+ <property name="text" >
+ <string>E&amp;xit</string>
+ </property>
+ <property name="shortcut" >
+ <string>Ctrl+Q</string>
+ </property>
+ </action>
+ <action name="markAction" >
+ <property name="text" >
+ <string>&amp;Mark</string>
+ </property>
+ <property name="shortcut" >
+ <string>Ctrl+M</string>
+ </property>
+ </action>
+ <action name="unmarkAction" >
+ <property name="text" >
+ <string>&amp;Unmark</string>
+ </property>
+ <property name="shortcut" >
+ <string>Ctrl+U</string>
+ </property>
+ </action>
+ <action name="clearAction" >
+ <property name="text" >
+ <string>&amp;Clear</string>
+ </property>
+ </action>
+ <action name="printPreviewAction" >
+ <property name="enabled" >
+ <bool>false</bool>
+ </property>
+ <property name="text" >
+ <string>Print Preview...</string>
+ </property>
+ </action>
+ </widget>
+ <pixmapfunction></pixmapfunction>
+ <resources/>
+ <connections/>
+</ui>