QPixmap WindowPreview::hoverIcon() const { KIconEffect *effect = KIconLoader::global()->iconEffect(); if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) { return effect->apply( m_icon, KIconLoader::Desktop, KIconLoader::ActiveState); } else { return m_icon; } }
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(); } }