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 "servicemodel.h"
  23
  24 #include <QAbstractItemView>
  25 #include <QCheckBox>
  26 #include <QPainter>
  27 #include <QPushButton>
  28
  29 ServiceItemDelegate::ServiceItemDelegate(QAbstractItemView* itemView, QObject* parent) :
  30     KWidgetItemDelegate(itemView, parent)
  31 {
  32 }
  33
  34 ServiceItemDelegate::~ServiceItemDelegate()
  35 {
  36 }
  37
  38 QSize ServiceItemDelegate::sizeHint(const QStyleOptionViewItem &option,
  39                                     const QModelIndex &index) const
  40 {
  41     Q_UNUSED(index);
  42
  43     const QStyle *style = itemView()->style();
  44     const int buttonHeight = style->pixelMetric(QStyle::PM_ButtonMargin) * 2 +
  45                              style->pixelMetric(QStyle::PM_ButtonIconSize);
  46     const int fontHeight = option.fontMetrics.height();
  47     return QSize(100, qMax(buttonHeight, fontHeight));
  48 }
  49
  50 void ServiceItemDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option,
  51                                   const QModelIndex& index) const
  52 {
  53     Q_UNUSED(index);
  54     painter->save();
  55
  56     itemView()->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &option, painter);
  57
  58     if (option.state & QStyle::State_Selected) {
  59         painter->setPen(option.palette.highlightedText().color());
  60     }
  61
  62     painter->restore();
  63 }
  64
  65 QList<QWidget*> ServiceItemDelegate::createItemWidgets(const QModelIndex&) const
  66 {
  67     QCheckBox* checkBox = new QCheckBox();
  68     QPalette palette = checkBox->palette();
  69     palette.setColor(QPalette::WindowText, palette.color(QPalette::Text));
  70     checkBox->setPalette(palette);
  71     connect(checkBox, &QCheckBox::clicked, this, &ServiceItemDelegate::slotCheckBoxClicked);
  72
  73     QPushButton* configureButton = new QPushButton();
  74     connect(configureButton, &QPushButton::clicked, this, &ServiceItemDelegate::slotConfigureButtonClicked);
  75
  76     return {checkBox, configureButton};
  77 }
  78
  79 void ServiceItemDelegate::updateItemWidgets(const QList<QWidget*> widgets,
  80                                               const QStyleOptionViewItem& option,
  81                                               const QPersistentModelIndex& index) const
  82 {
  83     QCheckBox* checkBox = static_cast<QCheckBox*>(widgets[0]);
  84     QPushButton *configureButton = static_cast<QPushButton*>(widgets[1]);
  85
  86     const int itemHeight = sizeHint(option, index).height();
  87
  88     // Update the checkbox showing the service name and icon
  89     const QAbstractItemModel* model = index.model();
  90     checkBox->setText(model->data(index).toString());
  91     const QString iconName = model->data(index, Qt::DecorationRole).toString();
  92     if (!iconName.isEmpty()) {
  93         checkBox->setIcon(QIcon::fromTheme(iconName));
  94     }
  95     checkBox->setChecked(model->data(index, Qt::CheckStateRole).toBool());
  96
  97     const bool configurable = model->data(index, ServiceModel::ConfigurableRole).toBool();
  98
  99     int checkBoxWidth = option.rect.width();
 100     if (configurable) {
 101         checkBoxWidth -= configureButton->sizeHint().width();
 102     }
 103     checkBox->resize(checkBoxWidth, checkBox->sizeHint().height());
 104     checkBox->move(0, (itemHeight - checkBox->height()) / 2);
 105
 106     // Update the configuration button
 107     if (configurable) {
 108         configureButton->setEnabled(checkBox->isChecked());
 109         configureButton->setIcon(QIcon::fromTheme(QStringLiteral("configure")));
 110         configureButton->resize(configureButton->sizeHint());
 111         configureButton->move(option.rect.right() - configureButton->width(),
 112                               (itemHeight - configureButton->height()) / 2);
 113     }
 114     configureButton->setVisible(configurable);
 115 }
 116
 117 void ServiceItemDelegate::slotCheckBoxClicked(bool checked)
 118 {
 119     QAbstractItemModel* model = const_cast<QAbstractItemModel*>(focusedIndex().model());
 120     model->setData(focusedIndex(), checked, Qt::CheckStateRole);
 121 }
 122
 123 void ServiceItemDelegate::slotConfigureButtonClicked()
 124 {
 125     emit requestServiceConfiguration(focusedIndex());
 126 }
 127