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Diffstat (limited to 'launcher/ui/instanceview/InstanceDelegate.cpp')
| -rw-r--r-- | launcher/ui/instanceview/InstanceDelegate.cpp | 428 |
1 files changed, 428 insertions, 0 deletions
diff --git a/launcher/ui/instanceview/InstanceDelegate.cpp b/launcher/ui/instanceview/InstanceDelegate.cpp new file mode 100644 index 00000000..3c4ca63f --- /dev/null +++ b/launcher/ui/instanceview/InstanceDelegate.cpp @@ -0,0 +1,428 @@ +/* Copyright 2013-2021 MultiMC Contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "InstanceDelegate.h" +#include <QPainter> +#include <QTextOption> +#include <QTextLayout> +#include <QApplication> +#include <QtMath> +#include <QDebug> + +#include "InstanceView.h" +#include "BaseInstance.h" +#include "InstanceList.h" +#include <xdgicon.h> +#include <QTextEdit> + +// Origin: Qt +static void viewItemTextLayout(QTextLayout &textLayout, int lineWidth, qreal &height, + qreal &widthUsed) +{ + height = 0; + widthUsed = 0; + textLayout.beginLayout(); + QString str = textLayout.text(); + while (true) + { + QTextLine line = textLayout.createLine(); + if (!line.isValid()) + break; + if (line.textLength() == 0) + break; + line.setLineWidth(lineWidth); + line.setPosition(QPointF(0, height)); + height += line.height(); + widthUsed = qMax(widthUsed, line.naturalTextWidth()); + } + textLayout.endLayout(); +} + +ListViewDelegate::ListViewDelegate(QObject *parent) : QStyledItemDelegate(parent) +{ +} + +void drawSelectionRect(QPainter *painter, const QStyleOptionViewItem &option, + const QRect &rect) +{ + if ((option.state & QStyle::State_Selected)) + painter->fillRect(rect, option.palette.brush(QPalette::Highlight)); + else + { + QColor backgroundColor = option.palette.color(QPalette::Background); + backgroundColor.setAlpha(160); + painter->fillRect(rect, QBrush(backgroundColor)); + } +} + +void drawFocusRect(QPainter *painter, const QStyleOptionViewItem &option, const QRect &rect) +{ + if (!(option.state & QStyle::State_HasFocus)) + return; + QStyleOptionFocusRect opt; + opt.direction = option.direction; + opt.fontMetrics = option.fontMetrics; + opt.palette = option.palette; + opt.rect = rect; + // opt.state = option.state | QStyle::State_KeyboardFocusChange | + // QStyle::State_Item; + auto col = option.state & QStyle::State_Selected ? QPalette::Highlight : QPalette::Base; + opt.backgroundColor = option.palette.color(col); + // Apparently some widget styles expect this hint to not be set + painter->setRenderHint(QPainter::Antialiasing, false); + + QStyle *style = option.widget ? option.widget->style() : QApplication::style(); + + style->drawPrimitive(QStyle::PE_FrameFocusRect, &opt, painter, option.widget); + + painter->setRenderHint(QPainter::Antialiasing); +} + +// TODO this can be made a lot prettier +void drawProgressOverlay(QPainter *painter, const QStyleOptionViewItem &option, + const int value, const int maximum) +{ + if (maximum == 0 || value == maximum) + { + return; + } + + painter->save(); + + qreal percent = (qreal)value / (qreal)maximum; + QColor color = option.palette.color(QPalette::Dark); + color.setAlphaF(0.70f); + painter->setBrush(color); + painter->setPen(QPen(QBrush(), 0)); + painter->drawPie(option.rect, 90 * 16, -percent * 360 * 16); + + painter->restore(); +} + +void drawBadges(QPainter *painter, const QStyleOptionViewItem &option, BaseInstance *instance, QIcon::Mode mode, QIcon::State state) +{ + QList<QString> pixmaps; + if (instance->isRunning()) + { + pixmaps.append("status-running"); + } + else if (instance->hasCrashed() || instance->hasVersionBroken()) + { + pixmaps.append("status-bad"); + } + if (instance->hasUpdateAvailable()) + { + pixmaps.append("checkupdate"); + } + + static const int itemSide = 24; + static const int spacing = 1; + const int itemsPerRow = qMax(1, qFloor(double(option.rect.width() + spacing) / double(itemSide + spacing))); + const int rows = qCeil((double)pixmaps.size() / (double)itemsPerRow); + QListIterator<QString> it(pixmaps); + painter->translate(option.rect.topLeft()); + for (int y = 0; y < rows; ++y) + { + for (int x = 0; x < itemsPerRow; ++x) + { + if (!it.hasNext()) + { + return; + } + // FIXME: inject this. + auto icon = XdgIcon::fromTheme(it.next()); + // opt.icon.paint(painter, iconbox, Qt::AlignCenter, mode, state); + const QPixmap pixmap; + // itemSide + QRect badgeRect( + option.rect.width() - x * itemSide + qMax(x - 1, 0) * spacing - itemSide, + y * itemSide + qMax(y - 1, 0) * spacing, + itemSide, + itemSide + ); + icon.paint(painter, badgeRect, Qt::AlignCenter, mode, state); + } + } + painter->translate(-option.rect.topLeft()); +} + +static QSize viewItemTextSize(const QStyleOptionViewItem *option) +{ + QStyle *style = option->widget ? option->widget->style() : QApplication::style(); + QTextOption textOption; + textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere); + QTextLayout textLayout; + textLayout.setTextOption(textOption); + textLayout.setFont(option->font); + textLayout.setText(option->text); + const int textMargin = style->pixelMetric(QStyle::PM_FocusFrameHMargin, option, option->widget) + 1; + QRect bounds(0, 0, 100 - 2 * textMargin, 600); + qreal height = 0, widthUsed = 0; + viewItemTextLayout(textLayout, bounds.width(), height, widthUsed); + const QSize size(qCeil(widthUsed), qCeil(height)); + return QSize(size.width() + 2 * textMargin, size.height()); +} + +void ListViewDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, + const QModelIndex &index) const +{ + QStyleOptionViewItem opt = option; + initStyleOption(&opt, index); + painter->save(); + painter->setClipRect(opt.rect); + + opt.features |= QStyleOptionViewItem::WrapText; + opt.text = index.data().toString(); + opt.textElideMode = Qt::ElideRight; + opt.displayAlignment = Qt::AlignTop | Qt::AlignHCenter; + + QStyle *style = opt.widget ? opt.widget->style() : QApplication::style(); + + // const int iconSize = style->pixelMetric(QStyle::PM_IconViewIconSize); + const int iconSize = 48; + QRect iconbox = opt.rect; + const int textMargin = style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0, opt.widget) + 1; + QRect textRect = opt.rect; + QRect textHighlightRect = textRect; + // clip the decoration on top, remove width padding + textRect.adjust(textMargin, iconSize + textMargin + 5, -textMargin, 0); + + textHighlightRect.adjust(0, iconSize + 5, 0, 0); + + // draw background + { + // FIXME: unused + // QSize textSize = viewItemTextSize ( &opt ); + drawSelectionRect(painter, opt, textHighlightRect); + /* + QPalette::ColorGroup cg; + QStyleOptionViewItem opt2(opt); + + if ((opt.widget && opt.widget->isEnabled()) || (opt.state & QStyle::State_Enabled)) + { + if (!(opt.state & QStyle::State_Active)) + cg = QPalette::Inactive; + else + cg = QPalette::Normal; + } + else + { + cg = QPalette::Disabled; + } + */ + /* + opt2.palette.setCurrentColorGroup(cg); + + // fill in background, if any + + + if (opt.backgroundBrush.style() != Qt::NoBrush) + { + QPointF oldBO = painter->brushOrigin(); + painter->setBrushOrigin(opt.rect.topLeft()); + painter->fillRect(opt.rect, opt.backgroundBrush); + painter->setBrushOrigin(oldBO); + } + + drawSelectionRect(painter, opt2, textHighlightRect); + */ + + /* + if (opt.showDecorationSelected) + { + drawSelectionRect(painter, opt2, opt.rect); + drawFocusRect(painter, opt2, opt.rect); + // painter->fillRect ( opt.rect, opt.palette.brush ( cg, QPalette::Highlight ) ); + } + else + { + + // if ( opt.state & QStyle::State_Selected ) + { + // QRect textRect = subElementRect ( QStyle::SE_ItemViewItemText, opt, + // opt.widget ); + // painter->fillRect ( textHighlightRect, opt.palette.brush ( cg, + // QPalette::Highlight ) ); + drawSelectionRect(painter, opt2, textHighlightRect); + drawFocusRect(painter, opt2, textHighlightRect); + } + } + */ + } + + // icon mode and state, also used for badges + QIcon::Mode mode = QIcon::Normal; + if (!(opt.state & QStyle::State_Enabled)) + mode = QIcon::Disabled; + else if (opt.state & QStyle::State_Selected) + mode = QIcon::Selected; + QIcon::State state = opt.state & QStyle::State_Open ? QIcon::On : QIcon::Off; + + // draw the icon + { + iconbox.setHeight(iconSize); + opt.icon.paint(painter, iconbox, Qt::AlignCenter, mode, state); + } + // set the text colors + QPalette::ColorGroup cg = + opt.state & QStyle::State_Enabled ? QPalette::Normal : QPalette::Disabled; + if (cg == QPalette::Normal && !(opt.state & QStyle::State_Active)) + cg = QPalette::Inactive; + if (opt.state & QStyle::State_Selected) + { + painter->setPen(opt.palette.color(cg, QPalette::HighlightedText)); + } + else + { + painter->setPen(opt.palette.color(cg, QPalette::Text)); + } + + // draw the text + QTextOption textOption; + textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere); + textOption.setTextDirection(opt.direction); + textOption.setAlignment(QStyle::visualAlignment(opt.direction, opt.displayAlignment)); + QTextLayout textLayout; + textLayout.setTextOption(textOption); + textLayout.setFont(opt.font); + textLayout.setText(opt.text); + + qreal width, height; + viewItemTextLayout(textLayout, textRect.width(), height, width); + + const int lineCount = textLayout.lineCount(); + + const QRect layoutRect = QStyle::alignedRect( + opt.direction, opt.displayAlignment, QSize(textRect.width(), int(height)), textRect); + const QPointF position = layoutRect.topLeft(); + for (int i = 0; i < lineCount; ++i) + { + const QTextLine line = textLayout.lineAt(i); + line.draw(painter, position); + } + + // FIXME: this really has no business of being here. Make generic. + auto instance = (BaseInstance*)index.data(InstanceList::InstancePointerRole) + .value<void *>(); + if (instance) + { + drawBadges(painter, opt, instance, mode, state); + } + + drawProgressOverlay(painter, opt, index.data(InstanceViewRoles::ProgressValueRole).toInt(), + index.data(InstanceViewRoles::ProgressMaximumRole).toInt()); + + painter->restore(); +} + +QSize ListViewDelegate::sizeHint(const QStyleOptionViewItem &option, + const QModelIndex &index) const +{ + QStyleOptionViewItem opt = option; + initStyleOption(&opt, index); + opt.features |= QStyleOptionViewItem::WrapText; + opt.text = index.data().toString(); + opt.textElideMode = Qt::ElideRight; + opt.displayAlignment = Qt::AlignTop | Qt::AlignHCenter; + + QStyle *style = opt.widget ? opt.widget->style() : QApplication::style(); + const int textMargin = style->pixelMetric(QStyle::PM_FocusFrameHMargin, &option, opt.widget) + 1; + int height = 48 + textMargin * 2 + 5; // TODO: turn constants into variables + QSize szz = viewItemTextSize(&opt); + height += szz.height(); + // FIXME: maybe the icon items could scale and keep proportions? + QSize sz(100, height); + return sz; +} + +class NoReturnTextEdit: public QTextEdit +{ + Q_OBJECT +public: + explicit NoReturnTextEdit(QWidget *parent) : QTextEdit(parent) + { + setTextInteractionFlags(Qt::TextEditorInteraction); + setHorizontalScrollBarPolicy(Qt::ScrollBarPolicy::ScrollBarAlwaysOff); + setVerticalScrollBarPolicy(Qt::ScrollBarPolicy::ScrollBarAlwaysOff); + } + bool event(QEvent * event) override + { + auto eventType = event->type(); + if(eventType == QEvent::KeyPress || eventType == QEvent::KeyRelease) + { + QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event); + auto key = keyEvent->key(); + if (key == Qt::Key_Return || key == Qt::Key_Enter) + { + emit editingDone(); + return true; + } + if(key == Qt::Key_Tab) + { + return true; + } + } + return QTextEdit::event(event); + } +signals: + void editingDone(); +}; + +void ListViewDelegate::updateEditorGeometry(QWidget* editor, const QStyleOptionViewItem& option, const QModelIndex& index) const +{ + const int iconSize = 48; + QRect textRect = option.rect; + // QStyle *style = option.widget ? option.widget->style() : QApplication::style(); + textRect.adjust(0, iconSize + 5, 0, 0); + editor->setGeometry(textRect); +} + +void ListViewDelegate::setEditorData(QWidget* editor, const QModelIndex& index) const +{ + auto text = index.data(Qt::EditRole).toString(); + QTextEdit * realeditor = qobject_cast<NoReturnTextEdit *>(editor); + realeditor->setAlignment(Qt::AlignHCenter | Qt::AlignTop); + realeditor->append(text); + realeditor->selectAll(); + realeditor->document()->clearUndoRedoStacks(); +} + +void ListViewDelegate::setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const +{ + QTextEdit * realeditor = qobject_cast<NoReturnTextEdit *>(editor); + QString text = realeditor->toPlainText(); + text.replace(QChar('\n'), QChar(' ')); + text = text.trimmed(); + if(text.size() != 0) + { + model->setData(index, text); + } +} + +QWidget * ListViewDelegate::createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const +{ + auto editor = new NoReturnTextEdit(parent); + connect(editor, &NoReturnTextEdit::editingDone, this, &ListViewDelegate::editingDone); + return editor; +} + +void ListViewDelegate::editingDone() +{ + NoReturnTextEdit *editor = qobject_cast<NoReturnTextEdit *>(sender()); + emit commitData(editor); + emit closeEditor(editor); +} + +#include "InstanceDelegate.moc" |