src/settings/serviceitemdelegate.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "serviceitemdelegate.h"
  21
  22 #include <QPushButton>
  23
  24 #include "servicemodel.h"
  25
  26 #include <QAbstractItemView>
  27 #include <QCheckBox>
  28 #include <QPainter>
  29
  30 ServiceItemDelegate::ServiceItemDelegate(QAbstractItemView* itemView, QObject* parent) :
  31     KWidgetItemDelegate(itemView, parent)
  32 {
  33 }
  34
  35 ServiceItemDelegate::~ServiceItemDelegate()
  36 {
  37 }
  38
  39 QSize ServiceItemDelegate::sizeHint(const QStyleOptionViewItem &option,
  40                                     const QModelIndex &index) const
  41 {
  42     Q_UNUSED(index);
  43
  44     const QStyle *style = itemView()->style();
  45     const int buttonHeight = style->pixelMetric(QStyle::PM_ButtonMargin) * 2 +
  46                              style->pixelMetric(QStyle::PM_ButtonIconSize);
  47     const int fontHeight = option.fontMetrics.height();
  48     return QSize(100, qMax(buttonHeight, fontHeight));
  49 }
  50
  51 void ServiceItemDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option,
  52                                   const QModelIndex& index) const
  53 {
  54     Q_UNUSED(index);
  55     painter->save();
  56
  57     itemView()->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &option, painter);
  58
  59     if (option.state & QStyle::State_Selected) {
  60         painter->setPen(option.palette.highlightedText().color());
  61     }
  62
  63     painter->restore();
  64 }
  65
  66 QList<QWidget*> ServiceItemDelegate::createItemWidgets(const QModelIndex&) const
  67 {
  68     QCheckBox* checkBox = new QCheckBox();
  69     QPalette palette = checkBox->palette();
  70     palette.setColor(QPalette::WindowText, palette.color(QPalette::Text));
  71     checkBox->setPalette(palette);
  72     connect(checkBox, &QCheckBox::clicked, this, &ServiceItemDelegate::slotCheckBoxClicked);
  73
  74     QPushButton* configureButton = new QPushButton();
  75     connect(configureButton, &QPushButton::clicked, this, &ServiceItemDelegate::slotConfigureButtonClicked);
  76
  77     return {checkBox, configureButton};
  78 }
  79
  80 void ServiceItemDelegate::updateItemWidgets(const QList<QWidget*> widgets,
  81                                               const QStyleOptionViewItem& option,
  82                                               const QPersistentModelIndex& index) const
  83 {
  84     QCheckBox* checkBox = static_cast<QCheckBox*>(widgets[0]);
  85     QPushButton *configureButton = static_cast<QPushButton*>(widgets[1]);
  86
  87     const int itemHeight = sizeHint(option, index).height();
  88
  89     // Update the checkbox showing the service name and icon
  90     const QAbstractItemModel* model = index.model();
  91     checkBox->setText(model->data(index).toString());
  92     const QString iconName = model->data(index, Qt::DecorationRole).toString();
  93     if (!iconName.isEmpty()) {
  94         checkBox->setIcon(QIcon::fromTheme(iconName));
  95     }
  96     checkBox->setChecked(model->data(index, Qt::CheckStateRole).toBool());
  97
  98     const bool configurable = model->data(index, ServiceModel::ConfigurableRole).toBool();
  99
 100     int checkBoxWidth = option.rect.width();
 101     if (configurable) {
 102         checkBoxWidth -= configureButton->sizeHint().width();
 103     }
 104     checkBox->resize(checkBoxWidth, checkBox->sizeHint().height());
 105     checkBox->move(0, (itemHeight - checkBox->height()) / 2);
 106
 107     // Update the configuration button
 108     if (configurable) {
 109         configureButton->setEnabled(checkBox->isChecked());
 110         configureButton->setIcon(QIcon::fromTheme(QStringLiteral("configure")));
 111         configureButton->resize(configureButton->sizeHint());
 112         configureButton->move(option.rect.right() - configureButton->width(),
 113                               (itemHeight - configureButton->height()) / 2);
 114     }
 115     configureButton->setVisible(configurable);
 116 }
 117
 118 void ServiceItemDelegate::slotCheckBoxClicked(bool checked)
 119 {
 120     QAbstractItemModel* model = const_cast<QAbstractItemModel*>(focusedIndex().model());
 121     model->setData(focusedIndex(), checked, Qt::CheckStateRole);
 122 }
 123
 124 void ServiceItemDelegate::slotConfigureButtonClicked()
 125 {
 126     emit requestServiceConfiguration(focusedIndex());
 127 }
 128