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
}
