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/*
* Copyright (C) 2011 Martin Klapetek <martin.klapetek@gmail.com>
* Copyright (C) 2013 Daniel Vrátil <dvratil@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include "entity-view-delegate.h"
#include "person-entity-merge-model.h"
#include <QtGui/QPainter>
#include <QtGui/QApplication>
#include <KDE/KIconLoader>
#include <KDE/KGlobalSettings>
#include <KDE/KDebug>
#include <TelepathyQt/Account>
const qreal GROUP_ICON_OPACITY = 0.6;
EntityViewDelegate::EntityViewDelegate(QObject* parent):
QStyledItemDelegate(parent),
m_avatarSize(IconSize(KIconLoader::Toolbar)),
m_spacing(2)
{
}
EntityViewDelegate::~EntityViewDelegate()
{
}
void EntityViewDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
{
if (index.data(PersonEntityMergeModel::ItemTypeRole).toUInt() == PersonEntityMergeModel::Group) {
paintHeader(painter, option, index);
} else {
paintContact(painter, option, index);
}
}
QSize EntityViewDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const
{
if (index.data(PersonEntityMergeModel::ItemTypeRole).toInt() == PersonEntityMergeModel::Group) {
return sizeHintHeader(option, index);
} else {
return sizeHintContact(option, index);
}
}
void EntityViewDelegate::paintContact(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
{
QStyleOptionViewItemV4 optV4 = option;
initStyleOption(&optV4, index);
const bool isSubcontact = index.parent().data(PersonEntityMergeModel::ItemTypeRole).toUInt() == PersonEntityMergeModel::Persona;
const bool isEntity = index.data(PersonEntityMergeModel::ItemTypeRole).toUInt() == PersonEntityMergeModel::Entity;
painter->save();
painter->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform | QPainter::HighQualityAntialiasing);
painter->setClipRect(optV4.rect);
QStyle *style = QApplication::style();
style->drawPrimitive(QStyle::PE_PanelItemViewItem, &optV4, painter);
if (isSubcontact) {
optV4.rect.setLeft(optV4.rect.left() + 10);
}
QRect iconRect = optV4.rect;
iconRect.setSize(QSize(m_avatarSize, m_avatarSize));
iconRect.moveTo(QPoint(iconRect.x() + m_spacing, iconRect.y() + m_spacing));
const QVariant var = index.data(Qt::DecorationRole);
QPixmap avatar;
if (var.canConvert<QPixmap>()) {
avatar = var.value<QPixmap>();
} else if (var.canConvert<QIcon>()) {
avatar = var.value<QIcon>().pixmap(QSize(m_avatarSize, m_avatarSize));
}
//some avatars might be invalid and their file not exist anymore,
//so we need to check if the pixmap is not null
if (avatar.isNull()) {
avatar = SmallIcon(QLatin1String("im-user"), KIconLoader::SizeMedium);//avatar.load("/home/mck182/Downloads/dummy-avatar.png");
}
style->drawItemPixmap(painter, iconRect, Qt::AlignCenter, avatar.scaled(iconRect.size(), Qt::KeepAspectRatio, Qt::SmoothTransformation));
const QFont nameFont = KGlobalSettings::generalFont();
const QFontMetrics nameFontMetrics(nameFont);
if (option.state & QStyle::State_Selected) {
painter->setPen(option.palette.color(QPalette::Active, QPalette::HighlightedText));
} else {
painter->setPen(option.palette.color(QPalette::Active, QPalette::Text));
}
const QString nameText = index.data(Qt::DisplayRole).toString();
painter->setFont(nameFont);
QRect userNameRect = optV4.rect;
userNameRect.setX(iconRect.x() + iconRect.width() + m_spacing * 2);
userNameRect.setY(userNameRect.y() + (userNameRect.height() / 2 - nameFontMetrics.height() / 2));
userNameRect.setHeight(nameFontMetrics.height());
if (isEntity) {
userNameRect.setWidth(qMin(nameFontMetrics.width(nameText), optV4.rect.width() - m_avatarSize - (2 * m_spacing)));
}
QTextOption textOption;
textOption.setWrapMode(QTextOption::NoWrap);
painter->drawText(userNameRect,
nameFontMetrics.elidedText(nameText, Qt::ElideRight, userNameRect.width()), textOption);
painter->restore();
const Tp::AccountPtr &account = index.data(KTp::AccountRole).value<Tp::AccountPtr>();
if (isEntity && account) {
const QPixmap accountIcon = KIcon(account->iconName()).pixmap(m_avatarSize);
QRect accountIconRect = optV4.rect;
accountIconRect.adjust(optV4.rect.width() - m_avatarSize - m_spacing, 0, 0, 0);
style->drawItemPixmap(painter, accountIconRect, 0, accountIcon);
}
}
QSize EntityViewDelegate::sizeHintContact(const QStyleOptionViewItem& option, const QModelIndex& index) const
{
Q_UNUSED(option);
Q_UNUSED(index);
return QSize(0, qMax(m_avatarSize + 2 * m_spacing, KGlobalSettings::smallestReadableFont().pixelSize() + m_spacing));
}
void EntityViewDelegate::paintHeader(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
{
QStyleOptionViewItemV4 optV4 = option;
initStyleOption(&optV4, index);
painter->save();
painter->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform | QPainter::HighQualityAntialiasing);
painter->setClipRect(optV4.rect);
QStyle *style = QApplication::style();
style->drawPrimitive(QStyle::PE_PanelItemViewItem, &option, painter);
QRect groupRect = optV4.rect;
//paint the background
const QBrush bgBrush(option.palette.color(QPalette::Active, QPalette::Button).lighter(105));
painter->fillRect(groupRect, bgBrush);
//paint very subtle line at the bottom
QPen thinLinePen;
thinLinePen.setWidth(0);
thinLinePen.setColor(option.palette.color(QPalette::Active, QPalette::Button));
painter->setPen(thinLinePen);
//to get nice sharp 1px line we need to turn AA off, otherwise it will be all blurry
painter->setRenderHint(QPainter::Antialiasing, false);
painter->drawLine(groupRect.bottomLeft(), groupRect.bottomRight());
painter->setRenderHint(QPainter::Antialiasing, true);
//remove spacing from the sides and one point to the bottom for the 1px line
groupRect.adjust(m_spacing, 0, -m_spacing, -1);
//get the proper rect for the expand sign
int iconSize = IconSize(KIconLoader::Toolbar);
QStyleOption expandSignOption = option;
expandSignOption.rect = groupRect;
expandSignOption.rect.setSize(QSize(iconSize, iconSize));
expandSignOption.rect.moveLeft(groupRect.left());
expandSignOption.rect.moveTop(groupRect.top() + groupRect.height()/2 - expandSignOption.rect.height()/2);
//paint the expand sign
if (option.state & QStyle::State_Open) {
style->drawPrimitive(QStyle::PE_IndicatorArrowDown, &expandSignOption, painter);
} else {
style->drawPrimitive(QStyle::PE_IndicatorArrowRight, &expandSignOption, painter);
}
const QFont groupFont = KGlobalSettings::smallestReadableFont();
//paint the header string
const QRect groupLabelRect = groupRect.adjusted(expandSignOption.rect.width() + m_spacing * 2, 0, -m_spacing, 0);
const QString groupHeaderString = index.data(Qt::DisplayRole).toString();
const QFontMetrics groupFontMetrics(groupFont);
painter->setFont(groupFont);
painter->setPen(option.palette.color(QPalette::Active, QPalette::Text));
painter->drawText(groupLabelRect, Qt::AlignVCenter | Qt::AlignLeft,
groupFontMetrics.elidedText(groupHeaderString, Qt::ElideRight,
groupLabelRect.width() - m_spacing));
painter->restore();
}
QSize EntityViewDelegate::sizeHintHeader(const QStyleOptionViewItem& option, const QModelIndex& index) const
{
Q_UNUSED(option)
Q_UNUSED(index)
// Add one point to the bottom for the 1px line
return QSize(0, qMax(m_avatarSize, KGlobalSettings::smallestReadableFont().pixelSize()) + m_spacing + 1);
}
#include "entity-view-delegate.moc"
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