X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/fd5ba3b4b22e923cff11b65654e9b6f931ce9a3c..d44436c30b773c25ee615b62a93b7638e348690b:/src/kitemviews/kstandarditemlistwidget.cpp diff --git a/src/kitemviews/kstandarditemlistwidget.cpp b/src/kitemviews/kstandarditemlistwidget.cpp index 621cd81cc..9a9a734ed 100644 --- a/src/kitemviews/kstandarditemlistwidget.cpp +++ b/src/kitemviews/kstandarditemlistwidget.cpp @@ -55,77 +55,25 @@ KStandardItemListWidgetInformant::~KStandardItemListWidgetInformant() { } -QSizeF KStandardItemListWidgetInformant::itemSizeHint(int index, const KItemListView* view) const +void KStandardItemListWidgetInformant::calculateItemSizeHints(QVector& sizeHints, const KItemListView* view) const { - const QHash values = view->model()->data(index); - const KItemListStyleOption& option = view->styleOption(); - const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0); - switch (static_cast(view)->itemLayout()) { - case KStandardItemListWidget::IconsLayout: { - const QString text = KStringHandler::preProcessWrap(values["text"].toString()); - - const qreal itemWidth = view->itemSize().width(); - const qreal maxWidth = itemWidth - 2 * option.padding; - QTextLine line; - - // Calculate the number of lines required for wrapping the name - QTextOption textOption(Qt::AlignHCenter); - textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere); - - qreal textHeight = 0; - QTextLayout layout(text, option.font); - layout.setTextOption(textOption); - layout.beginLayout(); - while ((line = layout.createLine()).isValid()) { - line.setLineWidth(maxWidth); - line.naturalTextWidth(); - textHeight += line.height(); - } - layout.endLayout(); - - // Add one line for each additional information - textHeight += additionalRolesCount * option.fontMetrics.lineSpacing(); - - const qreal maxTextHeight = option.maxTextSize.height(); - if (maxTextHeight > 0 && textHeight > maxTextHeight) { - textHeight = maxTextHeight; - } - - return QSizeF(itemWidth, textHeight + option.iconSize + option.padding * 3); - } - - case KStandardItemListWidget::CompactLayout: { - // 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; - - foreach (const QByteArray& role, view->visibleRoles()) { - const QString text = roleText(role, values); - const qreal requiredWidth = option.fontMetrics.width(text); - maximumRequiredWidth = qMax(maximumRequiredWidth, requiredWidth); - } + case KStandardItemListWidget::IconsLayout: + calculateIconsLayoutItemSizeHints(sizeHints, view); + break; - qreal width = option.padding * 4 + option.iconSize + maximumRequiredWidth; - const qreal maxWidth = option.maxTextSize.width(); - if (maxWidth > 0 && width > maxWidth) { - width = maxWidth; - } - const qreal height = option.padding * 2 + qMax(option.iconSize, (1 + additionalRolesCount) * option.fontMetrics.lineSpacing()); - return QSizeF(width, height); - } + case KStandardItemListWidget::CompactLayout: + calculateCompactLayoutItemSizeHints(sizeHints, view); + break; - case KStandardItemListWidget::DetailsLayout: { - const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height()); - return QSizeF(-1, height); - } + case KStandardItemListWidget::DetailsLayout: + calculateDetailsLayoutItemSizeHints(sizeHints, view); + break; default: Q_ASSERT(false); break; } - - return QSize(); } qreal KStandardItemListWidgetInformant::preferredRoleColumnWidth(const QByteArray& role, @@ -159,6 +107,11 @@ qreal KStandardItemListWidgetInformant::preferredRoleColumnWidth(const QByteArra return width; } +QString KStandardItemListWidgetInformant::itemText(int index, const KItemListView* view) const +{ + return view->model()->data(index).value("text").toString(); +} + QString KStandardItemListWidgetInformant::roleText(const QByteArray& role, const QHash& values) const { @@ -169,6 +122,107 @@ QString KStandardItemListWidgetInformant::roleText(const QByteArray& role, return values.value(role).toString(); } +void KStandardItemListWidgetInformant::calculateIconsLayoutItemSizeHints(QVector& sizeHints, const KItemListView* view) const +{ + const KItemListStyleOption& option = view->styleOption(); + const QFont& font = 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 maxTextHeight = option.maxTextSize.height(); + const qreal additionalRolesSpacing = additionalRolesCount * option.fontMetrics.lineSpacing(); + const qreal spacingAndIconHeight = option.iconSize + option.padding * 3; + + QTextOption textOption(Qt::AlignHCenter); + textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere); + + for (int index = 0; index < sizeHints.count(); ++index) { + if (!sizeHints.at(index).isEmpty()) { + continue; + } + + 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; + while ((line = layout.createLine()).isValid()) { + line.setLineWidth(maxWidth); + line.naturalTextWidth(); + textHeight += line.height(); + } + layout.endLayout(); + + // Add one line for each additional information + textHeight += additionalRolesSpacing; + + if (maxTextHeight > 0 && textHeight > maxTextHeight) { + textHeight = maxTextHeight; + } + + sizeHints[index] = QSizeF(itemWidth, textHeight + spacingAndIconHeight); + } +} + +void KStandardItemListWidgetInformant::calculateCompactLayoutItemSizeHints(QVector& sizeHints, const KItemListView* view) const +{ + const KItemListStyleOption& option = view->styleOption(); + const QFontMetrics& fontMetrics = option.fontMetrics; + const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0); + + const QList& visibleRoles = view->visibleRoles(); + const bool showOnlyTextRole = (visibleRoles.count() == 1) && (visibleRoles.first() == "text"); + const qreal maxWidth = option.maxTextSize.width(); + const qreal paddingAndIconWidth = option.padding * 4 + option.iconSize; + const qreal height = option.padding * 2 + qMax(option.iconSize, (1 + additionalRolesCount) * option.fontMetrics.lineSpacing()); + + for (int index = 0; index < sizeHints.count(); ++index) { + if (!sizeHints.at(index).isEmpty()) { + continue; + } + + // 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.width(itemText(index, view)); + } else { + const QHash& values = view->model()->data(index); + foreach (const QByteArray& role, visibleRoles) { + const QString& text = roleText(role, values); + const qreal requiredWidth = fontMetrics.width(text); + maximumRequiredWidth = qMax(maximumRequiredWidth, requiredWidth); + } + } + + qreal width = paddingAndIconWidth + maximumRequiredWidth; + if (maxWidth > 0 && width > maxWidth) { + width = maxWidth; + } + + sizeHints[index] = QSizeF(width, height); + } +} + +void KStandardItemListWidgetInformant::calculateDetailsLayoutItemSizeHints(QVector& sizeHints, const KItemListView* view) const +{ + const KItemListStyleOption& option = view->styleOption(); + const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height()); + + for (int index = 0; index < sizeHints.count(); ++index) { + if (!sizeHints.at(index).isEmpty()) { + continue; + } + + sizeHints[index] = QSizeF(-1, height); + } +} + KStandardItemListWidget::KStandardItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) : KItemListWidget(informant, parent), m_isCut(false), @@ -204,8 +258,13 @@ KStandardItemListWidget::~KStandardItemListWidget() qDeleteAll(m_textInfo); m_textInfo.clear(); - delete m_roleEditor; - delete m_oldRoleEditor; + if (m_roleEditor) { + m_roleEditor->deleteLater(); + } + + if (m_oldRoleEditor) { + m_oldRoleEditor->deleteLater(); + } } void KStandardItemListWidget::setLayout(Layout layout) @@ -649,16 +708,15 @@ void KStandardItemListWidget::editedRoleChanged(const QByteArray& current, const this, SLOT(slotRoleEditingCanceled(QByteArray,QVariant))); disconnect(m_roleEditor, SIGNAL(roleEditingFinished(QByteArray,QVariant)), this, SLOT(slotRoleEditingFinished(QByteArray,QVariant))); + + if (m_oldRoleEditor) { + m_oldRoleEditor->deleteLater(); + } m_oldRoleEditor = m_roleEditor; m_roleEditor->hide(); m_roleEditor = 0; } return; - } else if (m_oldRoleEditor) { - // Delete the old editor before constructing the new one to - // prevent a memory leak. - m_oldRoleEditor->deleteLater(); - m_oldRoleEditor = 0; } Q_ASSERT(!m_roleEditor); @@ -791,14 +849,14 @@ void KStandardItemListWidget::updateExpansionArea() { if (m_supportsItemExpanding) { const QHash values = data(); - Q_ASSERT(values.contains("expandedParentsCount")); const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt(); if (expandedParentsCount >= 0) { + const KItemListStyleOption& option = styleOption(); const qreal widgetHeight = size().height(); - const qreal inc = (widgetHeight - KIconLoader::SizeSmall) / 2; + const qreal inc = (widgetHeight - option.iconSize) / 2; const qreal x = expandedParentsCount * widgetHeight + inc; const qreal y = inc; - m_expansionArea = QRectF(x, y, KIconLoader::SizeSmall, KIconLoader::SizeSmall); + m_expansionArea = QRectF(x, y, option.iconSize, option.iconSize); return; } } @@ -1027,12 +1085,15 @@ void KStandardItemListWidget::updateIconsLayoutTextCache() 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()); + QString lastTextLine = nameText.mid(line.textStart()); lastTextLine = m_customizedFontMetrics.elidedText(lastTextLine, Qt::ElideRight, - line.naturalTextWidth() - 1); + maxWidth); const QString elidedText = nameText.left(line.textStart()) + lastTextLine; nameTextInfo->staticText.setText(elidedText); + + const qreal lastLineWidth = m_customizedFontMetrics.boundingRect(lastTextLine).width(); + nameWidth = qMax(nameWidth, lastLineWidth); } break; } @@ -1303,6 +1364,9 @@ void KStandardItemListWidget::closeRoleEditor() scene()->views()[0]->parentWidget()->setFocus(); } + if (m_oldRoleEditor) { + m_oldRoleEditor->deleteLater(); + } m_oldRoleEditor = m_roleEditor; m_roleEditor->hide(); m_roleEditor = 0;