+QFont KStandardItemListWidgetInformant::customizedFontForLinks(const QFont& baseFont) const
+{
+ return baseFont;
+}
+
+void KStandardItemListWidgetInformant::calculateIconsLayoutItemSizeHints(QVector<qreal>& logicalHeightHints, qreal& logicalWidthHint, const KItemListView* view) const
+{
+ const KItemListStyleOption& option = view->styleOption();
+ const QFont& normalFont = option.font;
+ const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
+
+ const qreal itemWidth = view->itemSize().width();
+ const qreal maxWidth = itemWidth - 2 * option.padding;
+ const qreal additionalRolesSpacing = additionalRolesCount * option.fontMetrics.lineSpacing();
+ const qreal spacingAndIconHeight = option.iconSize + option.padding * 3;
+
+ const QFont linkFont = customizedFontForLinks(normalFont);
+
+ QTextOption textOption(Qt::AlignHCenter);
+ textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
+
+ for (int index = 0; index < logicalHeightHints.count(); ++index) {
+ if (logicalHeightHints.at(index) > 0.0) {
+ continue;
+ }
+
+ // If the current item is a link, we use the customized link font instead of the normal font.
+ const QFont& font = itemIsLink(index, view) ? linkFont : normalFont;
+
+ const QString& text = KStringHandler::preProcessWrap(itemText(index, view));
+
+ // Calculate the number of lines required for wrapping the name
+ qreal textHeight = 0;
+ QTextLayout layout(text, font);
+ layout.setTextOption(textOption);
+ layout.beginLayout();
+ QTextLine line;
+ int lineCount = 0;
+ while ((line = layout.createLine()).isValid()) {
+ line.setLineWidth(maxWidth);
+ line.naturalTextWidth();
+ textHeight += line.height();
+
+ ++lineCount;
+ if (lineCount == option.maxTextLines) {
+ break;
+ }
+ }
+ layout.endLayout();
+
+ // Add one line for each additional information
+ textHeight += additionalRolesSpacing;
+
+ logicalHeightHints[index] = textHeight + spacingAndIconHeight;
+ }
+
+ logicalWidthHint = itemWidth;
+}
+
+void KStandardItemListWidgetInformant::calculateCompactLayoutItemSizeHints(QVector<qreal>& logicalHeightHints, qreal& logicalWidthHint, const KItemListView* view) const
+{
+ const KItemListStyleOption& option = view->styleOption();
+ const QFontMetrics& normalFontMetrics = option.fontMetrics;
+ const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
+
+ const QList<QByteArray>& visibleRoles = view->visibleRoles();
+ const bool showOnlyTextRole = (visibleRoles.count() == 1) && (visibleRoles.first() == "text");
+ const qreal maxWidth = option.maxTextWidth;
+ const qreal paddingAndIconWidth = option.padding * 4 + option.iconSize;
+ const qreal height = option.padding * 2 + qMax(option.iconSize, (1 + additionalRolesCount) * normalFontMetrics.lineSpacing());
+
+ const QFontMetrics linkFontMetrics(customizedFontForLinks(option.font));
+
+ for (int index = 0; index < logicalHeightHints.count(); ++index) {
+ if (logicalHeightHints.at(index) > 0.0) {
+ continue;
+ }
+
+ // If the current item is a link, we use the customized link font metrics instead of the normal font metrics.
+ const QFontMetrics& fontMetrics = itemIsLink(index, view) ? linkFontMetrics : normalFontMetrics;
+
+ // For each row exactly one role is shown. Calculate the maximum required width that is necessary
+ // to show all roles without horizontal clipping.
+ qreal maximumRequiredWidth = 0.0;
+
+ if (showOnlyTextRole) {
+ maximumRequiredWidth = fontMetrics.horizontalAdvance(itemText(index, view));
+ } else {
+ const QHash<QByteArray, QVariant>& values = view->model()->data(index);
+ foreach (const QByteArray& role, visibleRoles) {
+ const QString& text = roleText(role, values);
+ const qreal requiredWidth = fontMetrics.horizontalAdvance(text);
+ maximumRequiredWidth = qMax(maximumRequiredWidth, requiredWidth);
+ }
+ }
+
+ qreal width = paddingAndIconWidth + maximumRequiredWidth;
+ if (maxWidth > 0 && width > maxWidth) {
+ width = maxWidth;
+ }
+
+ logicalHeightHints[index] = width;
+ }
+
+ logicalWidthHint = height;
+}
+
+void KStandardItemListWidgetInformant::calculateDetailsLayoutItemSizeHints(QVector<qreal>& logicalHeightHints, qreal& logicalWidthHint, const KItemListView* view) const
+{
+ const KItemListStyleOption& option = view->styleOption();
+ const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
+ logicalHeightHints.fill(height);
+ logicalWidthHint = -1.0;
+}
+
projects / dolphin.git / blobdiff