ground/gcs/src/libs/utils/welcomemodetreewidget.cpp

   1 /**
   2  ******************************************************************************
   3  *
   4  * @file       welcomemodetreewidget.cpp
   5  * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
   6  *             Parts by Nokia Corporation (qt-info@nokia.com) Copyright (C) 2009.
   7  * @brief
   8  * @see        The GNU Public License (GPL) Version 3
   9  * @defgroup
  10  * @{
  11  *
  12  *****************************************************************************/
  13 /*
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 3 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful, but
  20  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  21  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  22  * for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License along
  25  * with this program; if not, write to the Free Software Foundation, Inc.,
  26  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  27  */
  28
  29 #include "welcomemodetreewidget.h"
  30
  31 #include <QLabel>
  32 #include <QAction>
  33 #include <QBoxLayout>
  34 #include <QHeaderView>
  35
  36 namespace Utils {
  37 void WelcomeModeLabel::setStyledText(const QString &text)
  38 {
  39     QString rc = QLatin1String(
  40         "<html><head><style type=\"text/css\">p, li { white-space: pre-wrap; }</style></head>"
  41         "<body style=\" font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:400; font-style:normal;\">"
  42         "<p style=\" margin-top:16px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">"
  43         "<span style=\" font-size:x-large; color:#555555;\">");
  44
  45     rc += text;
  46     rc += QLatin1String("</span></p><hr/></body></html>");
  47     setText(rc);
  48 }
  49
  50 struct WelcomeModeTreeWidgetPrivate {
  51     WelcomeModeTreeWidgetPrivate() {}
  52     QIcon bullet;
  53 };
  54
  55 WelcomeModeTreeWidget::WelcomeModeTreeWidget(QWidget *parent) :
  56     QTreeWidget(parent), m_d(new WelcomeModeTreeWidgetPrivate)
  57 {
  58     m_d->bullet = QIcon(QLatin1String(":/welcome/images/list_bullet_arrow.png"));
  59     connect(this, SIGNAL(itemClicked(QTreeWidgetItem *, int)),
  60             SLOT(slotItemClicked(QTreeWidgetItem *)));
  61
  62     viewport()->setAutoFillBackground(false);
  63 }
  64
  65 WelcomeModeTreeWidget::~WelcomeModeTreeWidget()
  66 {
  67     delete m_d;
  68 }
  69
  70 QSize WelcomeModeTreeWidget::minimumSizeHint() const
  71 {
  72     return QSize();
  73 }
  74
  75 QSize WelcomeModeTreeWidget::sizeHint() const
  76 {
  77     return QSize(QTreeWidget::sizeHint().width(), 30 * topLevelItemCount());
  78 }
  79
  80 QTreeWidgetItem *WelcomeModeTreeWidget::addItem(const QString &label, const QString &data, const QString &toolTip)
  81 {
  82     QTreeWidgetItem *item = new QTreeWidgetItem(this);
  83
  84     item->setIcon(0, m_d->bullet);
  85     item->setSizeHint(0, QSize(24, 30));
  86     QLabel *lbl = new QLabel(label);
  87     lbl->setTextInteractionFlags(Qt::NoTextInteraction);
  88     lbl->setCursor(QCursor(Qt::PointingHandCursor));
  89     lbl->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
  90     QBoxLayout *lay = new QVBoxLayout;
  91     lay->setContentsMargins(3, 2, 0, 0);
  92     lay->addWidget(lbl);
  93     QWidget *wdg    = new QWidget;
  94     wdg->setLayout(lay);
  95     setItemWidget(item, 1, wdg);
  96     item->setData(0, Qt::UserRole, data);
  97     if (!toolTip.isEmpty()) {
  98         wdg->setToolTip(toolTip);
  99     }
 100     return item;
 101 }
 102
 103 void WelcomeModeTreeWidget::slotAddNewsItem(const QString &title, const QString &description, const QString &link)
 104 {
 105     int itemWidth = width() - header()->sectionSize(0);
 106     QFont f = font();
 107     QString elidedText  = QFontMetrics(f).elidedText(description, Qt::ElideRight, itemWidth);
 108
 109     f.setBold(true);
 110     QString elidedTitle = QFontMetrics(f).elidedText(title, Qt::ElideRight, itemWidth);
 111     QString data = QString::fromLatin1("<b>%1</b><br />%2").arg(elidedTitle).arg(elidedText);
 112     addTopLevelItem(addItem(data, link, link));
 113 }
 114
 115 void WelcomeModeTreeWidget::slotItemClicked(QTreeWidgetItem *item)
 116 {
 117     emit activated(item->data(0, Qt::UserRole).toString());
 118 }
 119 }