File indexing completed on 2024-05-12 04:19:48

 // vim: set tabstop=4 shiftwidth=4 expandtab:
 /*
 Gwenview: an image viewer
 Copyright 2008 Aurélien Gâteau <agateau@kde.org>
 
 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, Cambridge, MA 02110-1301, USA.
 
 */
 // Self
 #include "tagitemdelegate.h"
 
 // Qt
 #include <QAbstractItemView>
 #include <QPainter>
 #include <QToolButton>
 
 // KF
 #include <KIconLoader>
 #include <KLocalizedString>
 
 // Local
 #include "gwenview_lib_debug.h"
 #include <lib/semanticinfo/tagmodel.h>
 
 namespace Gwenview
 {
 TagItemDelegate::TagItemDelegate(QAbstractItemView *view)
     : KWidgetItemDelegate(view, view)
 {
 #define pm(x) view->style()->pixelMetric(QStyle::x)
     mMargin = pm(PM_ToolBarItemMargin);
     mSpacing = pm(PM_ToolBarItemSpacing);
 #undef pm
     const int iconSize = KIconLoader::global()->currentSize(KIconLoader::Toolbar);
     const QSize sz = view->style()->sizeFromContents(QStyle::CT_ToolButton, nullptr, QSize(iconSize, iconSize));
     mButtonSize = qMax(sz.width(), sz.height());
 }
 
 QList<QWidget *> TagItemDelegate::createItemWidgets(const QModelIndex &index) const
 {
 #define initButton(x)                                                                                                                                          \
     (x)->setAutoRaise(true);                                                                                                                                   \
     setBlockedEventTypes((x), QList<QEvent::Type>() << QEvent::MouseButtonPress << QEvent::MouseButtonRelease << QEvent::MouseButtonDblClick);
 
     Q_UNUSED(index);
 
     auto assignToAllButton = new QToolButton;
     initButton(assignToAllButton);
     assignToAllButton->setIcon(QIcon::fromTheme(QStringLiteral("fill-color"))); /* FIXME: Probably not the appropriate icon */
     assignToAllButton->setToolTip(i18nc("@info:tooltip", "Assign this tag to all selected images"));
     connect(assignToAllButton, &QToolButton::clicked, this, &TagItemDelegate::slotAssignToAllButtonClicked);
 
     auto removeButton = new QToolButton;
     initButton(removeButton);
     removeButton->setIcon(QIcon::fromTheme(QStringLiteral("list-remove")));
     connect(removeButton, &QToolButton::clicked, this, &TagItemDelegate::slotRemoveButtonClicked);
 
 #undef initButton
 
     return QList<QWidget *>() << removeButton << assignToAllButton;
 }
 
 void TagItemDelegate::updateItemWidgets(const QList<QWidget *> &widgets, const QStyleOptionViewItem &option, const QPersistentModelIndex &index) const
 {
     const bool fullyAssigned = index.data(TagModel::AssignmentStatusRole).toInt() == int(TagModel::FullyAssigned);
 
     auto removeButton = static_cast<QToolButton *>(widgets[0]);
     auto assignToAllButton = static_cast<QToolButton *>(widgets[1]);
 
     QSize buttonSize(mButtonSize, option.rect.height() - 2 * mMargin);
 
     removeButton->resize(buttonSize);
     assignToAllButton->resize(buttonSize);
 
     removeButton->move(option.rect.width() - mButtonSize - mMargin, mMargin);
 
     if (fullyAssigned) {
         assignToAllButton->hide();
     } else {
         assignToAllButton->move(removeButton->x() - mButtonSize - mSpacing, mMargin);
     }
 }
 
 void TagItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
 {
     if (!index.isValid()) {
         return;
     }
     const bool selected = option.state & QStyle::State_Selected;
     const bool fullyAssigned = index.data(TagModel::AssignmentStatusRole).toInt() == int(TagModel::FullyAssigned);
 
     itemView()->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &option, painter, nullptr);
 
     QRect textRect = option.rect;
     textRect.setLeft(textRect.left() + mMargin);
     textRect.setWidth(textRect.width() - mButtonSize - mMargin - mSpacing);
     if (!fullyAssigned) {
         textRect.setWidth(textRect.width() - mButtonSize - mSpacing);
     }
 
     painter->setPen(option.palette.color(QPalette::Normal, selected ? QPalette::HighlightedText : QPalette::Text));
     painter->drawText(textRect, Qt::AlignLeft | Qt::AlignVCenter, index.data().toString());
 }
 
 QSize TagItemDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
 {
     const int width = option.fontMetrics.boundingRect(index.data().toString()).width();
     const int height = qMax(mButtonSize, option.fontMetrics.height());
     return QSize(width + 2 * mMargin, height + 2 * mMargin);
 }
 
 void TagItemDelegate::slotRemoveButtonClicked()
 {
     const QModelIndex index = focusedIndex();
     if (!index.isValid()) {
         qCWarning(GWENVIEW_LIB_LOG) << "!index.isValid()";
         return;
     }
     Q_EMIT removeTagRequested(index.data(TagModel::TagRole).toString());
 }
 
 void TagItemDelegate::slotAssignToAllButtonClicked()
 {
     const QModelIndex index = focusedIndex();
     if (!index.isValid()) {
         qCWarning(GWENVIEW_LIB_LOG) << "!index.isValid()";
         return;
     }
     Q_EMIT assignTagToAllRequested(index.data(TagModel::TagRole).toString());
 }
 
 } // namespace
 
 #include "moc_tagitemdelegate.cpp"