void KStandardItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous) { Q_UNUSED(previous); QGraphicsView* parent = scene()->views()[0]; if (current.isEmpty() || !parent || current != "text") { if (m_roleEditor) { emit roleEditingCanceled(index(), current, data().value(current)); disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)), this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant))); disconnect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)), this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant))); m_roleEditor->deleteLater(); m_roleEditor = 0; } return; } Q_ASSERT(!m_roleEditor); const TextInfo* textInfo = m_textInfo.value("text"); m_roleEditor = new KItemListRoleEditor(parent); m_roleEditor->setIndex(index()); m_roleEditor->setRole(current); m_roleEditor->setFont(styleOption().font); const QString text = data().value(current).toString(); m_roleEditor->setPlainText(text); QTextOption textOption = textInfo->staticText.textOption(); m_roleEditor->document()->setDefaultTextOption(textOption); const int textSelectionLength = selectionLength(text); if (textSelectionLength > 0) { QTextCursor cursor = m_roleEditor->textCursor(); cursor.movePosition(QTextCursor::StartOfBlock); cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, textSelectionLength); m_roleEditor->setTextCursor(cursor); } connect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)), this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant))); connect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)), this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant))); // Adjust the geometry of the editor QRectF rect = roleEditingRect(current); const int frameWidth = m_roleEditor->frameWidth(); rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth); rect.translate(pos()); if (rect.right() > parent->width()) { rect.setWidth(parent->width() - rect.left()); } m_roleEditor->setGeometry(rect.toRect()); m_roleEditor->show(); m_roleEditor->setFocus(); }
void KStandardItemListWidget::updateTextsCache() { QTextOption textOption; switch (m_layout) { case IconsLayout: textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere); textOption.setAlignment(Qt::AlignHCenter); break; case CompactLayout: case DetailsLayout: textOption.setAlignment(Qt::AlignLeft); textOption.setWrapMode(QTextOption::NoWrap); break; default: Q_ASSERT(false); break; } qDeleteAll(m_textInfo); m_textInfo.clear(); for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) { TextInfo* textInfo = new TextInfo(); textInfo->staticText.setTextFormat(Qt::PlainText); textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching); textInfo->staticText.setTextOption(textOption); m_textInfo.insert(m_sortedVisibleRoles[i], textInfo); } switch (m_layout) { case IconsLayout: updateIconsLayoutTextCache(); break; case CompactLayout: updateCompactLayoutTextCache(); break; case DetailsLayout: updateDetailsLayoutTextCache(); break; default: Q_ASSERT(false); break; } const TextInfo* ratingTextInfo = m_textInfo.value("rating"); if (ratingTextInfo) { // The text of the rating-role has been set to empty to get // replaced by a rating-image showing the rating as stars. const KItemListStyleOption& option = styleOption(); QSizeF ratingSize = preferredRatingSize(option); const qreal availableWidth = (m_layout == DetailsLayout) ? columnWidth("rating") - columnPadding(option) : size().width(); if (ratingSize.width() > availableWidth) { ratingSize.rwidth() = availableWidth; } m_rating = QPixmap(ratingSize.toSize()); m_rating.fill(Qt::transparent); QPainter painter(&m_rating); const QRect rect(0, 0, m_rating.width(), m_rating.height()); const int rating = data().value("rating").toInt(); KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating); } else if (!m_rating.isNull()) { m_rating = QPixmap(); } }
QColor KStandardItemListWidget::textColor() const { if (m_customTextColor.isValid() && !isSelected()) { return m_customTextColor; } const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive; const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : normalTextColorRole(); return styleOption().palette.color(group, role); }
QSize KFileItemListView::availableIconSize() const { const KItemListStyleOption& option = styleOption(); const int iconSize = option.iconSize; if (itemLayout() == IconsLayout) { const int maxIconWidth = itemSize().width() - 2 * option.padding; return QSize(maxIconWidth, iconSize); } return QSize(iconSize, iconSize); }
void TCircleButton::paintEvent(QPaintEvent *event) { Q_UNUSED(event); QPainter painter(this); painter.setRenderHint(QPainter::Antialiasing); QStyleOptionButton option = styleOption(); style()->drawControl(QStyle::CE_PushButton, &option, &painter, this); painter.save(); QPainterPath path; int internalRadio = m_diameter; // pen painter.setPen(QPen(palette().color(QPalette::Foreground ), 3, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin)); path.addEllipse( rect().x(), rect().y(), m_diameter, m_diameter); painter.drawPath(path); path = QPainterPath(); internalRadio /= 10; // pen painter.setPen(QPen(palette().color(QPalette::ButtonText), 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin)); path.addEllipse( rect().x()+internalRadio, rect().y()+internalRadio, m_diameter-internalRadio*2, m_diameter-internalRadio*2); painter.drawPath(path); path = QPainterPath(); // pen painter.setPen(QPen(palette().color(QPalette::Foreground ), 2, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin)); internalRadio += 2; path.addEllipse( rect().x()+internalRadio, rect().y()+internalRadio, m_diameter-internalRadio*2, m_diameter-internalRadio*2); painter.drawPath(path); painter.restore(); }
void KStandardItemListWidget::updateCompactLayoutTextCache() { // +------+ Name role // | Icon | Additional role 1 // +------+ Additional role 2 const QHash<QByteArray, QVariant> values = data(); const KItemListStyleOption& option = styleOption(); const qreal widgetHeight = size().height(); const qreal lineSpacing = m_customizedFontMetrics.lineSpacing(); const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing; const int scaledIconSize = (textLinesHeight < option.iconSize) ? widgetHeight - 2 * option.padding : option.iconSize; qreal maximumRequiredTextWidth = 0; const qreal x = option.padding * 3 + scaledIconSize; qreal y = qRound((widgetHeight - textLinesHeight) / 2); const qreal maxWidth = size().width() - x - option.padding; foreach (const QByteArray& role, m_sortedVisibleRoles) { const QString text = roleText(role, values); TextInfo* textInfo = m_textInfo.value(role); textInfo->staticText.setText(text); qreal requiredWidth = m_customizedFontMetrics.width(text); if (requiredWidth > maxWidth) { requiredWidth = maxWidth; const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth); textInfo->staticText.setText(elidedText); } textInfo->pos = QPointF(x, y); textInfo->staticText.setTextWidth(maxWidth); maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth); y += lineSpacing; } m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight); }
QRectF KStandardItemListWidget::textFocusRect() const { // In the compact- and details-layout a larger textRect() is returned to be aligned // with the iconRect(). This is useful to have a larger selection/hover-area // when having a quite large icon size but only one line of text. Still the // focus rectangle should be shown as narrow as possible around the text. const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing(); switch (m_layout) { case CompactLayout: { QRectF rect = m_textRect; const TextInfo* topText = m_textInfo.value(m_sortedVisibleRoles.first()); const TextInfo* bottomText = m_textInfo.value(m_sortedVisibleRoles.last()); rect.setTop(topText->pos.y()); rect.setBottom(bottomText->pos.y() + bottomText->staticText.size().height()); return rect; } case DetailsLayout: { QRectF rect = m_textRect; const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles.first()); rect.setTop(textInfo->pos.y()); rect.setBottom(textInfo->pos.y() + textInfo->staticText.size().height()); const KItemListStyleOption& option = styleOption(); if (option.extendedSelectionRegion) { const QString text = textInfo->staticText.text(); rect.setWidth(m_customizedFontMetrics.width(text) + 2 * option.padding); } return rect; } default: break; } return m_textRect; }
void KStandardItemListWidget::triggerCacheRefreshing() { if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) { return; } refreshCache(); const QHash<QByteArray, QVariant> values = data(); m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool(); m_isHidden = isHidden(); m_customizedFont = customizedFont(styleOption().font); m_customizedFontMetrics = QFontMetrics(m_customizedFont); updateExpansionArea(); updateTextsCache(); updatePixmapCache(); m_dirtyLayout = false; m_dirtyContent = false; m_dirtyContentRoles.clear(); }
QSize HierarchicalHeaderView::sectionSizeFromContents(int logicalIndex) const { if(_pd->headerModel) { QModelIndex curLeafIndex(_pd->leafIndex(logicalIndex)); if(curLeafIndex.isValid()) { QStyleOptionHeader styleOption(styleOptionForCell(logicalIndex)); QSize s(_pd->cellSize(curLeafIndex, this, styleOption)); curLeafIndex=curLeafIndex.parent(); while(curLeafIndex.isValid()) { if(orientation() == Qt::Horizontal) s.rheight()+=_pd->cellSize(curLeafIndex, this, styleOption).height(); else s.rwidth()+=_pd->cellSize(curLeafIndex, this, styleOption).width(); curLeafIndex=curLeafIndex.parent(); } return s; } } return QHeaderView::sectionSizeFromContents(logicalIndex); }
QSize TCircleButton::sizeHint() const { ensurePolished(); int w = 0, h = 0; QStyleOptionButton opt = styleOption(); // calculate contents size... if (!icon().isNull()) { int ih = opt.iconSize.height(); int iw = opt.iconSize.width() + 4; w += iw; h = qMax(h, ih); } if (menu()) w += style()->pixelMetric(QStyle::PM_MenuButtonIndicator, &opt, this); QString s(text()); bool empty = s.isEmpty(); if (empty) s = QString::fromLatin1("XXXX"); QFontMetrics fm = fontMetrics(); QSize sz = fm.size(Qt::TextShowMnemonic, s); if (!empty || !w) w += sz.width(); if (!empty || !h) h = qMax(h, sz.height()); return (style()->sizeFromContents(QStyle::CT_PushButton, &opt, QSize(w, h), this).expandedTo(QApplication::globalStrut())); }
QPixmap KStandardItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option, QWidget* widget) { QPixmap pixmap = KItemListWidget::createDragPixmap(option, widget); if (m_layout != DetailsLayout) { return pixmap; } // Only return the content of the text-column as pixmap const int leftClip = m_pixmapPos.x(); const TextInfo* textInfo = m_textInfo.value("text"); const int rightClip = textInfo->pos.x() + textInfo->staticText.size().width() + 2 * styleOption().padding; QPixmap clippedPixmap(rightClip - leftClip + 1, pixmap.height()); clippedPixmap.fill(Qt::transparent); QPainter painter(&clippedPixmap); painter.drawPixmap(-leftClip, 0, pixmap); return clippedPixmap; }
QRectF KStandardItemListWidget::selectionToggleRect() const { const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing(); const int iconHeight = styleOption().iconSize; int toggleSize = KIconLoader::SizeSmall; if (iconHeight >= KIconLoader::SizeEnormous) { toggleSize = KIconLoader::SizeMedium; } else if (iconHeight >= KIconLoader::SizeLarge) { toggleSize = KIconLoader::SizeSmallMedium; } QPointF pos = iconRect().topLeft(); // If the selection toggle has a very small distance to the // widget borders, the size of the selection toggle will get // increased to prevent an accidental clicking of the item // when trying to hit the toggle. const int widgetHeight = size().height(); const int widgetWidth = size().width(); const int minMargin = 2; if (toggleSize + minMargin * 2 >= widgetHeight) { pos.rx() -= (widgetHeight - toggleSize) / 2; toggleSize = widgetHeight; pos.setY(0); } if (toggleSize + minMargin * 2 >= widgetWidth) { pos.ry() -= (widgetWidth - toggleSize) / 2; toggleSize = widgetWidth; pos.setX(0); } return QRectF(pos, QSizeF(toggleSize, toggleSize)); }
QColor KItemListGroupHeader::baseColor() const { const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive; return styleOption().palette.color(group, normalBaseColorRole()); }
int main(int argc, char **argv) { QApplication app(argc, argv); QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps); QCoreApplication::setApplicationVersion(QT_VERSION_STR); QCommandLineParser parser; parser.setApplicationDescription("High DPI tester"); parser.addHelpOption(); parser.addVersionOption(); QCommandLineOption pixmapPainterOption("pixmap", "Test pixmap painter"); parser.addOption(pixmapPainterOption); QCommandLineOption labelOption("label", "Test Labels"); parser.addOption(labelOption); QCommandLineOption mainWindowOption("mainwindow", "Test QMainWindow"); parser.addOption(mainWindowOption); QCommandLineOption standardIconsOption("standard-icons", "Test standard icons"); parser.addOption(standardIconsOption); QCommandLineOption cachingOption("caching", "Test caching"); parser.addOption(cachingOption); QCommandLineOption styleOption("styles", "Test style"); parser.addOption(styleOption); QCommandLineOption fontsOption("fonts", "Test fonts"); parser.addOption(fontsOption); QCommandLineOption iconDrawingOption("icondrawing", "Test icon drawing"); parser.addOption(iconDrawingOption); QCommandLineOption buttonsOption("buttons", "Test buttons"); parser.addOption(buttonsOption); parser.process(app); QScopedPointer<PixmapPainter> pixmapPainter; if (parser.isSet(pixmapPainterOption)) { pixmapPainter.reset(new PixmapPainter); pixmapPainter->show(); } QScopedPointer<Labels> label; if (parser.isSet(labelOption)) { label.reset(new Labels); label->resize(200, 200); label->show(); } QScopedPointer<MainWindow> mainWindow; if (parser.isSet(mainWindowOption)) { mainWindow.reset(new MainWindow); mainWindow->show(); } QScopedPointer<StandardIcons> icons; if (parser.isSet(standardIconsOption)) { icons.reset(new StandardIcons); icons->resize(510, 510); icons->show(); } QScopedPointer<Caching> caching; if (parser.isSet(cachingOption)) { caching.reset(new Caching); caching->resize(300, 300); caching->show(); } QScopedPointer<Style> style; if (parser.isSet(styleOption)) { style.reset(new Style); style->show(); } QScopedPointer<Fonts> fonts; if (parser.isSet(fontsOption)) { fonts.reset(new Fonts); fonts->show(); } QScopedPointer<IconDrawing> iconDrawing; if (parser.isSet(iconDrawingOption)) { iconDrawing.reset(new IconDrawing); iconDrawing->show(); } QScopedPointer<Buttons> buttons; if (parser.isSet(buttonsOption)) { buttons.reset(new Buttons); buttons->show(); } if (QApplication::topLevelWidgets().isEmpty()) parser.showHelp(0); return app.exec(); }
void KStandardItemListWidget::updateIconsLayoutTextCache() { // +------+ // | Icon | // +------+ // // Name role that // might get wrapped above // several lines. // Additional role 1 // Additional role 2 const QHash<QByteArray, QVariant> values = data(); const KItemListStyleOption& option = styleOption(); const qreal padding = option.padding; const qreal maxWidth = size().width() - 2 * padding; const qreal widgetHeight = size().height(); const qreal lineSpacing = m_customizedFontMetrics.lineSpacing(); // Initialize properties for the "text" role. It will be used as anchor // for initializing the position of the other roles. TextInfo* nameTextInfo = m_textInfo.value("text"); const QString nameText = KStringHandler::preProcessWrap(values["text"].toString()); nameTextInfo->staticText.setText(nameText); // Calculate the number of lines required for the name and the required width qreal nameWidth = 0; qreal nameHeight = 0; QTextLine line; const int additionalRolesCount = qMax(visibleRoles().count() - 1, 0); const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) - additionalRolesCount; QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont); layout.setTextOption(nameTextInfo->staticText.textOption()); layout.beginLayout(); int nameLineIndex = 0; while ((line = layout.createLine()).isValid()) { line.setLineWidth(maxWidth); nameWidth = qMax(nameWidth, line.naturalTextWidth()); nameHeight += line.height(); ++nameLineIndex; if (nameLineIndex == maxNameLines) { // The maximum number of textlines has been reached. If this is // the case provide an elided text if necessary. const int textLength = line.textStart() + line.textLength(); if (textLength < nameText.length()) { // Elide the last line of the text QString lastTextLine = nameText.mid(line.textStart(), line.textLength()); lastTextLine = m_customizedFontMetrics.elidedText(lastTextLine, Qt::ElideRight, line.naturalTextWidth() - 1); const QString elidedText = nameText.left(line.textStart()) + lastTextLine; nameTextInfo->staticText.setText(elidedText); } break; } } layout.endLayout(); // Use one line for each additional information nameTextInfo->staticText.setTextWidth(maxWidth); nameTextInfo->pos = QPointF(padding, widgetHeight - nameHeight - additionalRolesCount * lineSpacing - padding); m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2, nameTextInfo->pos.y(), nameWidth, nameHeight); // Calculate the position for each additional information qreal y = nameTextInfo->pos.y() + nameHeight; foreach (const QByteArray& role, m_sortedVisibleRoles) { if (role == "text") { continue; } const QString text = roleText(role, values); TextInfo* textInfo = m_textInfo.value(role); textInfo->staticText.setText(text); qreal requiredWidth = 0; QTextLayout layout(text, m_customizedFont); QTextOption textOption; textOption.setWrapMode(QTextOption::NoWrap); layout.setTextOption(textOption); layout.beginLayout(); QTextLine textLine = layout.createLine(); if (textLine.isValid()) { textLine.setLineWidth(maxWidth); requiredWidth = textLine.naturalTextWidth(); if (requiredWidth > maxWidth) { const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth); textInfo->staticText.setText(elidedText); requiredWidth = m_customizedFontMetrics.width(elidedText); } else if (role == "rating") { // Use the width of the rating pixmap, because the rating text is empty. requiredWidth = m_rating.width(); } } layout.endLayout(); textInfo->pos = QPointF(padding, y); textInfo->staticText.setTextWidth(maxWidth); const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing); m_textRect |= textRect; y += lineSpacing; } // Add a padding to the text rectangle m_textRect.adjust(-padding, -padding, padding, padding); }
void KStandardItemListWidget::updatePixmapCache() { // Precondition: Requires already updated m_textPos values to calculate // the remaining height when the alignment is vertical. const QSizeF widgetSize = size(); const bool iconOnTop = (m_layout == IconsLayout); const KItemListStyleOption& option = styleOption(); const qreal padding = option.padding; const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : option.iconSize; const int maxIconHeight = option.iconSize; const QHash<QByteArray, QVariant> values = data(); bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight); if (!updatePixmap && m_dirtyContent) { updatePixmap = m_dirtyContentRoles.isEmpty() || m_dirtyContentRoles.contains("iconPixmap") || m_dirtyContentRoles.contains("iconName") || m_dirtyContentRoles.contains("iconOverlays"); } if (updatePixmap) { m_pixmap = values["iconPixmap"].value<QPixmap>(); if (m_pixmap.isNull()) { // Use the icon that fits to the MIME-type QString iconName = values["iconName"].toString(); if (iconName.isEmpty()) { // The icon-name has not been not resolved by KFileItemModelRolesUpdater, // use a generic icon as fallback iconName = QLatin1String("unknown"); } m_pixmap = pixmapForIcon(iconName, maxIconHeight); } else if (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight) { // A custom pixmap has been applied. Assure that the pixmap // is scaled to the maximum available size. KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight)); } const QStringList overlays = values["iconOverlays"].toStringList(); // Strangely KFileItem::overlays() returns empty string-values, so // we need to check first whether an overlay must be drawn at all. // It is more efficient to do it here, as KIconLoader::drawOverlays() // assumes that an overlay will be drawn and has some additional // setup time. foreach (const QString& overlay, overlays) { if (!overlay.isEmpty()) { // There is at least one overlay, draw all overlays above m_pixmap // and cancel the check KIconLoader::global()->drawOverlays(overlays, m_pixmap, KIconLoader::Desktop); break; } } if (m_isCut) { KIconEffect* effect = KIconLoader::global()->iconEffect(); m_pixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::DisabledState); } if (m_isHidden) { KIconEffect::semiTransparent(m_pixmap); } if (isSelected()) { const QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color(); QImage image = m_pixmap.toImage(); KIconEffect::colorize(image, color, 1.0f); m_pixmap = QPixmap::fromImage(image); } } if (!m_overlay.isNull()) { QPainter painter(&m_pixmap); painter.drawPixmap(0, m_pixmap.height() - m_overlay.height(), m_overlay); } int scaledIconSize = 0; if (iconOnTop) { const TextInfo* textInfo = m_textInfo.value("text"); scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding); } else { const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1; const qreal requiredTextHeight = textRowsCount * m_customizedFontMetrics.height(); scaledIconSize = (requiredTextHeight < maxIconHeight) ? widgetSize.height() - 2 * padding : maxIconHeight; } const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize; const int maxScaledIconHeight = scaledIconSize; m_scaledPixmapSize = m_pixmap.size(); m_scaledPixmapSize.scale(maxScaledIconWidth, maxScaledIconHeight, Qt::KeepAspectRatio); if (iconOnTop) { // Center horizontally and align on bottom within the icon-area m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2); m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height()); } else { // Center horizontally and vertically within the icon-area const TextInfo* textInfo = m_textInfo.value("text"); m_pixmapPos.setX(textInfo->pos.x() - 2 * padding - (scaledIconSize + m_scaledPixmapSize.width()) / 2); m_pixmapPos.setY(padding + (scaledIconSize - m_scaledPixmapSize.height()) / 2); } m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)); // Prepare the pixmap that is used when the item gets hovered if (isHovered()) { m_hoverPixmap = m_pixmap; KIconEffect* effect = KIconLoader::global()->iconEffect(); // In the KIconLoader terminology, active = hover. if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) { m_hoverPixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState); } else { m_hoverPixmap = m_pixmap; } } else if (hoverOpacity() <= 0.0) { // No hover animation is ongoing. Clear m_hoverPixmap to save memory. m_hoverPixmap = QPixmap(); } }
void KStandardItemListWidget::updateDetailsLayoutTextCache() { // Precondition: Requires already updated m_expansionArea // to determine the left position. // +------+ // | Icon | Name role Additional role 1 Additional role 2 // +------+ m_textRect = QRectF(); const KItemListStyleOption& option = styleOption(); const QHash<QByteArray, QVariant> values = data(); const qreal widgetHeight = size().height(); const int scaledIconSize = widgetHeight - 2 * option.padding; const int fontHeight = m_customizedFontMetrics.height(); const qreal columnWidthInc = columnPadding(option); qreal firstColumnInc = scaledIconSize; if (m_supportsItemExpanding) { firstColumnInc += (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2; } else { firstColumnInc += option.padding; } qreal x = firstColumnInc; const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2); foreach (const QByteArray& role, m_sortedVisibleRoles) { QString text = roleText(role, values); // Elide the text in case it does not fit into the available column-width qreal requiredWidth = m_customizedFontMetrics.width(text); const qreal roleWidth = columnWidth(role); qreal availableTextWidth = roleWidth - columnWidthInc; const bool isTextRole = (role == "text"); if (isTextRole) { availableTextWidth -= firstColumnInc; } if (requiredWidth > availableTextWidth) { text = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, availableTextWidth); requiredWidth = m_customizedFontMetrics.width(text); } TextInfo* textInfo = m_textInfo.value(role); textInfo->staticText.setText(text); textInfo->pos = QPointF(x + columnWidthInc / 2, y); x += roleWidth; if (isTextRole) { const qreal textWidth = option.extendedSelectionRegion ? size().width() - textInfo->pos.x() : requiredWidth + 2 * option.padding; m_textRect = QRectF(textInfo->pos.x() - option.padding, 0, textWidth, size().height()); // The column after the name should always be aligned on the same x-position independent // from the expansion-level shown in the name column x -= firstColumnInc; } else if (isRoleRightAligned(role)) { textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc; } }
void KStandardItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget) { const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing(); KItemListWidget::paint(painter, option, widget); if (!m_expansionArea.isEmpty()) { drawSiblingsInformation(painter); } const KItemListStyleOption& itemListStyleOption = styleOption(); if (isHovered()) { // Blend the unhovered and hovered pixmap if the hovering // animation is ongoing if (hoverOpacity() < 1.0) { drawPixmap(painter, m_pixmap); } const qreal opacity = painter->opacity(); painter->setOpacity(hoverOpacity() * opacity); drawPixmap(painter, m_hoverPixmap); painter->setOpacity(opacity); } else { drawPixmap(painter, m_pixmap); } painter->setFont(m_customizedFont); painter->setPen(m_isHidden ? m_additionalInfoTextColor : textColor()); const TextInfo* textInfo = m_textInfo.value("text"); if (!textInfo) { // It seems that we can end up here even if m_textInfo does not contain // the key "text", see bug 306167. According to triggerCacheRefreshing(), // this can only happen if the index is negative. This can happen when // the item is about to be removed, see KItemListView::slotItemsRemoved(). // TODO: try to reproduce the crash and find a better fix. return; } painter->drawStaticText(textInfo->pos, textInfo->staticText); bool clipAdditionalInfoBounds = false; if (m_supportsItemExpanding) { // Prevent a possible overlapping of the additional-information texts // with the icon. This can happen if the user has minimized the width // of the name-column to a very small value. const qreal minX = m_pixmapPos.x() + m_pixmap.width() + 4 * itemListStyleOption.padding; if (textInfo->pos.x() + columnWidth("text") > minX) { clipAdditionalInfoBounds = true; painter->save(); painter->setClipRect(minX, 0, size().width() - minX, size().height(), Qt::IntersectClip); } } painter->setPen(m_additionalInfoTextColor); painter->setFont(m_customizedFont); for (int i = 1; i < m_sortedVisibleRoles.count(); ++i) { const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles[i]); painter->drawStaticText(textInfo->pos, textInfo->staticText); } if (!m_rating.isNull()) { const TextInfo* ratingTextInfo = m_textInfo.value("rating"); QPointF pos = ratingTextInfo->pos; const Qt::Alignment align = ratingTextInfo->staticText.textOption().alignment(); if (align & Qt::AlignHCenter) { pos.rx() += (size().width() - m_rating.width()) / 2 - 2; } painter->drawPixmap(pos, m_rating); } if (clipAdditionalInfoBounds) { painter->restore(); } #ifdef KSTANDARDITEMLISTWIDGET_DEBUG painter->setBrush(Qt::NoBrush); painter->setPen(Qt::green); painter->drawRect(m_iconRect); painter->setPen(Qt::red); painter->drawText(QPointF(0, m_customizedFontMetrics.height()), QString::number(index())); painter->drawRect(rect()); #endif }