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

   1 /**
   2  ******************************************************************************
   3  *
   4  * @file       detailswidget.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 "detailswidget.h"
  30 #include "detailsbutton.h"
  31
  32 #include <QGridLayout>
  33 #include <QtCore/QStack>
  34 #include <QLabel>
  35 #include <QGridLayout>
  36 #include <QPainter>
  37
  38 using namespace Utils;
  39
  40 DetailsWidget::DetailsWidget(QWidget *parent)
  41     : QWidget(parent),
  42     m_summaryLabel(new QLabel(this)),
  43     m_detailsButton(new DetailsButton(this)),
  44     m_widget(0),
  45     m_toolWidget(0),
  46     m_grid(new QGridLayout(this))
  47 {
  48     m_grid->setContentsMargins(4, 3, 4, 3);
  49
  50     m_summaryLabel->setTextInteractionFlags(Qt::TextSelectableByMouse);
  51     m_summaryLabel->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
  52
  53     m_grid->addWidget(m_summaryLabel, 0, 0);
  54     m_grid->addWidget(m_detailsButton, 0, 2, 1, 1, Qt::AlignBottom);
  55
  56     m_dummyWidget = new QWidget(this);
  57     m_dummyWidget->setMaximumHeight(4);
  58     m_dummyWidget->setMaximumHeight(4);
  59     m_dummyWidget->setVisible(false);
  60     m_grid->addWidget(m_dummyWidget, 2, 0, 1, 1);
  61
  62     connect(m_detailsButton, SIGNAL(clicked()),
  63             this, SLOT(detailsButtonClicked()));
  64 }
  65
  66 DetailsWidget::~DetailsWidget()
  67 {}
  68
  69 void DetailsWidget::paintEvent(QPaintEvent *paintEvent)
  70 {
  71     // TL-->                 ___________  <-- TR
  72     // |           |
  73     // ML->   ______________| <--MM     | <--MR
  74     // |                         |
  75     // BL->   |_________________________| <-- BR
  76
  77
  78     QWidget::paintEvent(paintEvent);
  79
  80     if (!m_detailsButton->isToggled()) {
  81         return;
  82     }
  83
  84     const QRect detailsGeometry = m_detailsButton->geometry();
  85     const QRect widgetGeometry  = m_widget ? m_widget->geometry() : QRect(x(), y() + height(), width(), 0);
  86
  87     QPoint tl(detailsGeometry.topLeft());
  88     tl += QPoint(-3, -3);
  89
  90     QPoint tr(detailsGeometry.topRight());
  91     tr += QPoint(3, -3);
  92
  93     QPoint mm(detailsGeometry.left() - 3, widgetGeometry.top() - 3);
  94
  95     QPoint ml(1, mm.y());
  96
  97     QPoint mr(tr.x(), mm.y());
  98
  99     int bottom = geometry().height() - 3;
 100     QPoint bl(1, bottom);
 101     QPoint br(tr.x(), bottom);
 102
 103     QPainter p(this);
 104     p.setRenderHint(QPainter::Antialiasing);
 105     p.setPen(Qt::NoPen);
 106
 107     p.setBrush(palette().dark());
 108     p.drawRoundedRect(QRect(tl, br), 5, 5);
 109     p.drawRoundedRect(QRect(ml, br), 5, 5);
 110 }
 111
 112 void DetailsWidget::detailsButtonClicked()
 113 {
 114     bool visible = m_detailsButton->isToggled();
 115
 116     if (m_widget) {
 117         m_widget->setVisible(visible);
 118     }
 119     m_dummyWidget->setVisible(visible);
 120     fixUpLayout();
 121 }
 122
 123 void DetailsWidget::setSummaryText(const QString &text)
 124 {
 125     m_summaryLabel->setText(text);
 126 }
 127
 128 QString DetailsWidget::summaryText() const
 129 {
 130     return m_summaryLabel->text();
 131 }
 132
 133 bool DetailsWidget::expanded() const
 134 {
 135     return m_detailsButton->isToggled();
 136 }
 137
 138 void DetailsWidget::setExpanded(bool v)
 139 {
 140     if (expanded() != v) {
 141         m_detailsButton->animateClick();
 142     }
 143 }
 144
 145 QWidget *DetailsWidget::widget() const
 146 {
 147     return m_widget;
 148 }
 149
 150 void DetailsWidget::setWidget(QWidget *widget)
 151 {
 152     if (m_widget == widget) {
 153         return;
 154     }
 155     if (m_widget) {
 156         m_grid->removeWidget(m_widget);
 157         m_widget = 0;
 158     }
 159     if (widget) {
 160         m_grid->addWidget(widget, 1, 0, 1, 3);
 161         m_widget = widget;
 162         bool visible = m_detailsButton->isToggled();
 163         m_widget->setVisible(visible);
 164         m_dummyWidget->setVisible(visible);
 165     }
 166 }
 167
 168 void DetailsWidget::setToolWidget(QWidget *widget)
 169 {
 170     if (m_toolWidget == widget) {
 171         return;
 172     }
 173     if (m_toolWidget) {
 174         m_grid->removeWidget(m_toolWidget);
 175         m_toolWidget = 0;
 176     }
 177     if (widget) {
 178         m_grid->addWidget(widget, 0, 1, 1, 1, Qt::AlignBottom);
 179         m_toolWidget = widget;
 180     }
 181 }
 182
 183 QWidget *DetailsWidget::toolWidget() const
 184 {
 185     return m_toolWidget;
 186 }
 187
 188 void DetailsWidget::fixUpLayout()
 189 {
 190     if (!m_widget) {
 191         return;
 192     }
 193     QWidget *parent = m_widget;
 194     QStack<QWidget *> widgets;
 195     while ((parent = parent->parentWidget()) && parent && parent->layout()) {
 196         widgets.push(parent);
 197         parent->layout()->update();
 198     }
 199
 200     while (!widgets.isEmpty()) {
 201         widgets.pop()->layout()->activate();
 202     }
 203 }