X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/475f8b1261a6ea106ca9dd90b625ea95fe63a4c7..5bee1889e1682f1e7ffe55e49beaf4544eaf7157:/src/kitemviews/kitemlistview.cpp diff --git a/src/kitemviews/kitemlistview.cpp b/src/kitemviews/kitemlistview.cpp index f1822826d..d26809797 100644 --- a/src/kitemviews/kitemlistview.cpp +++ b/src/kitemviews/kitemlistview.cpp @@ -22,24 +22,30 @@ #include "kitemlistview.h" +#include "dolphindebug.h" +#include "kitemlistcontainer.h" #include "kitemlistcontroller.h" -#include "kitemlistheader_p.h" -#include "kitemlistrubberband_p.h" +#include "kitemlistheader.h" #include "kitemlistselectionmanager.h" -#include "kitemlistsizehintresolver_p.h" -#include "kitemlistviewlayouter_p.h" -#include "kitemlistviewanimation_p.h" -#include "kitemlistwidget.h" +#include "kstandarditemlistwidget.h" -#include +#include "private/kitemlistheaderwidget.h" +#include "private/kitemlistrubberband.h" +#include "private/kitemlistsizehintresolver.h" +#include "private/kitemlistviewlayouter.h" +#include "private/kitemlistviewanimation.h" -#include #include +#include #include -#include #include #include #include +#include + +#include + +#include "kitemlistviewaccessible.h" namespace { // Time in ms until reaching the autoscroll margin triggers @@ -50,19 +56,33 @@ namespace { const int RepeatingAutoScrollDelay = 1000 / 60; } +#ifndef QT_NO_ACCESSIBILITY +QAccessibleInterface* accessibleInterfaceFactory(const QString& key, QObject* object) +{ + Q_UNUSED(key) + + if (KItemListContainer* container = qobject_cast(object)) { + return new KItemListContainerAccessible(container); + } else if (KItemListView* view = qobject_cast(object)) { + return new KItemListViewAccessible(view); + } + + return 0; +} +#endif + KItemListView::KItemListView(QGraphicsWidget* parent) : QGraphicsWidget(parent), m_enabledSelectionToggles(false), m_grouped(false), m_supportsItemExpanding(false), + m_editingRole(false), m_activeTransactions(0), m_endTransactionAnimationHint(Animation), m_itemSize(), m_controller(0), m_model(0), m_visibleRoles(), - m_visibleRolesSizes(), - m_stretchedVisibleRolesSizes(), m_widgetCreator(0), m_groupHeaderCreator(0), m_styleOption(), @@ -83,111 +103,51 @@ KItemListView::KItemListView(QGraphicsWidget* parent) : m_autoScrollIncrement(0), m_autoScrollTimer(0), m_header(0), - m_useHeaderWidths(false) + m_headerWidget(0), + m_dropIndicator() { setAcceptHoverEvents(true); m_sizeHintResolver = new KItemListSizeHintResolver(this); - m_layouter = new KItemListViewLayouter(this); - m_layouter->setSizeHintResolver(m_sizeHintResolver); + m_layouter = new KItemListViewLayouter(m_sizeHintResolver, this); m_animation = new KItemListViewAnimation(this); - connect(m_animation, SIGNAL(finished(QGraphicsWidget*,KItemListViewAnimation::AnimationType)), - this, SLOT(slotAnimationFinished(QGraphicsWidget*,KItemListViewAnimation::AnimationType))); + connect(m_animation, &KItemListViewAnimation::finished, + this, &KItemListView::slotAnimationFinished); m_layoutTimer = new QTimer(this); m_layoutTimer->setInterval(300); m_layoutTimer->setSingleShot(true); - connect(m_layoutTimer, SIGNAL(timeout()), this, SLOT(slotLayoutTimerFinished())); + connect(m_layoutTimer, &QTimer::timeout, this, &KItemListView::slotLayoutTimerFinished); m_rubberBand = new KItemListRubberBand(this); - connect(m_rubberBand, SIGNAL(activationChanged(bool)), this, SLOT(slotRubberBandActivationChanged(bool))); -} - -KItemListView::~KItemListView() -{ - delete m_sizeHintResolver; - m_sizeHintResolver = 0; -} - -void KItemListView::setScrollOrientation(Qt::Orientation orientation) -{ - const Qt::Orientation previousOrientation = m_layouter->scrollOrientation(); - if (orientation == previousOrientation) { - return; - } - - m_layouter->setScrollOrientation(orientation); - m_animation->setScrollOrientation(orientation); - m_sizeHintResolver->clearCache(); - - if (m_grouped) { - QMutableHashIterator it (m_visibleGroups); - while (it.hasNext()) { - it.next(); - it.value()->setScrollOrientation(orientation); - } - updateGroupHeaderHeight(); + connect(m_rubberBand, &KItemListRubberBand::activationChanged, this, &KItemListView::slotRubberBandActivationChanged); - } + m_headerWidget = new KItemListHeaderWidget(this); + m_headerWidget->setVisible(false); - doLayout(NoAnimation); + m_header = new KItemListHeader(this); - onScrollOrientationChanged(orientation, previousOrientation); - emit scrollOrientationChanged(orientation, previousOrientation); -} +#ifndef QT_NO_ACCESSIBILITY + QAccessible::installFactory(accessibleInterfaceFactory); +#endif -Qt::Orientation KItemListView::scrollOrientation() const -{ - return m_layouter->scrollOrientation(); } -void KItemListView::setItemSize(const QSizeF& itemSize) +KItemListView::~KItemListView() { - const QSizeF previousSize = m_itemSize; - if (itemSize == previousSize) { - return; - } - - // Skip animations when the number of rows or columns - // are changed in the grid layout. Although the animation - // engine can handle this usecase, it looks obtrusive. - const bool animate = !changesItemGridLayout(m_layouter->size(), - itemSize, - m_layouter->itemMargin()); - - const bool updateAlternateBackgrounds = (m_visibleRoles.count() > 1) && - (( m_itemSize.isEmpty() && !itemSize.isEmpty()) || - (!m_itemSize.isEmpty() && itemSize.isEmpty())); - - m_itemSize = itemSize; - - if (updateAlternateBackgrounds) { - // For an empty item size alternate backgrounds are drawn if more than - // one role is shown. Assure that the backgrounds for visible items are - // updated when changing the size in this context. - QHashIterator it(m_visibleItems); - while (it.hasNext()) { - it.next(); - updateAlternateBackgroundForWidget(it.value()); - } - } - - if (itemSize.isEmpty()) { - updateVisibleRolesSizes(); - } else { - m_layouter->setItemSize(itemSize); - } + // The group headers are children of the widgets created by + // widgetCreator(). So it is mandatory to delete the group headers + // first. + delete m_groupHeaderCreator; + m_groupHeaderCreator = 0; - m_sizeHintResolver->clearCache(); - doLayout(animate ? Animation : NoAnimation); - onItemSizeChanged(itemSize, previousSize); -} + delete m_widgetCreator; + m_widgetCreator = 0; -QSizeF KItemListView::itemSize() const -{ - return m_itemSize; + delete m_sizeHintResolver; + m_sizeHintResolver = 0; } void KItemListView::setScrollOffset(qreal offset) @@ -228,8 +188,8 @@ void KItemListView::setItemOffset(qreal offset) } m_layouter->setItemOffset(offset); - if (m_header) { - m_header->setPos(-offset, 0); + if (m_headerWidget->isVisible()) { + m_headerWidget->setOffset(offset); } // Don't check whether the m_layoutTimer is active: Changing the @@ -248,39 +208,52 @@ qreal KItemListView::maximumItemOffset() const return m_layouter->maximumItemOffset(); } +int KItemListView::maximumVisibleItems() const +{ + return m_layouter->maximumVisibleItems(); +} + void KItemListView::setVisibleRoles(const QList& roles) { const QList previousRoles = m_visibleRoles; m_visibleRoles = roles; + onVisibleRolesChanged(roles, previousRoles); + + m_sizeHintResolver->clearCache(); + m_layouter->markAsDirty(); - const bool updateAlternateBackgrounds = m_itemSize.isEmpty() && - ((roles.count() > 1 && previousRoles.count() <= 1) || - (roles.count() <= 1 && previousRoles.count() > 1)); + if (m_itemSize.isEmpty()) { + m_headerWidget->setColumns(roles); + updatePreferredColumnWidths(); + if (!m_headerWidget->automaticColumnResizing()) { + // The column-width of new roles are still 0. Apply the preferred + // column-width as default with. + foreach (const QByteArray& role, m_visibleRoles) { + if (m_headerWidget->columnWidth(role) == 0) { + const qreal width = m_headerWidget->preferredColumnWidth(role); + m_headerWidget->setColumnWidth(role, width); + } + } + + applyColumnWidthsFromHeader(); + } + } + + const bool alternateBackgroundsChanged = m_itemSize.isEmpty() && + ((roles.count() > 1 && previousRoles.count() <= 1) || + (roles.count() <= 1 && previousRoles.count() > 1)); QHashIterator it(m_visibleItems); while (it.hasNext()) { it.next(); KItemListWidget* widget = it.value(); widget->setVisibleRoles(roles); - widget->setVisibleRolesSizes(m_stretchedVisibleRolesSizes); - if (updateAlternateBackgrounds) { + if (alternateBackgroundsChanged) { updateAlternateBackgroundForWidget(widget); } } - m_sizeHintResolver->clearCache(); - m_layouter->markAsDirty(); - - if (m_header) { - m_header->setVisibleRoles(roles); - m_header->setVisibleRolesWidths(headerRolesWidths()); - m_useHeaderWidths = false; - } - - updateVisibleRolesSizes(); doLayout(NoAnimation); - - onVisibleRolesChanged(roles, previousRoles); } QList KItemListView::visibleRoles() const @@ -293,13 +266,12 @@ void KItemListView::setAutoScroll(bool enabled) if (enabled && !m_autoScrollTimer) { m_autoScrollTimer = new QTimer(this); m_autoScrollTimer->setSingleShot(true); - connect(m_autoScrollTimer, SIGNAL(timeout()), this, SLOT(triggerAutoScrolling())); + connect(m_autoScrollTimer, &QTimer::timeout, this, &KItemListView::triggerAutoScrolling); m_autoScrollTimer->start(InitialAutoScrollDelay); } else if (!enabled && m_autoScrollTimer) { delete m_autoScrollTimer; m_autoScrollTimer = 0; } - } bool KItemListView::autoScroll() const @@ -337,55 +309,40 @@ KItemModelBase* KItemListView::model() const void KItemListView::setWidgetCreator(KItemListWidgetCreatorBase* widgetCreator) { + delete m_widgetCreator; m_widgetCreator = widgetCreator; } KItemListWidgetCreatorBase* KItemListView::widgetCreator() const { + if (!m_widgetCreator) { + m_widgetCreator = defaultWidgetCreator(); + } return m_widgetCreator; } void KItemListView::setGroupHeaderCreator(KItemListGroupHeaderCreatorBase* groupHeaderCreator) { + delete m_groupHeaderCreator; m_groupHeaderCreator = groupHeaderCreator; } KItemListGroupHeaderCreatorBase* KItemListView::groupHeaderCreator() const { + if (!m_groupHeaderCreator) { + m_groupHeaderCreator = defaultGroupHeaderCreator(); + } return m_groupHeaderCreator; } -void KItemListView::setStyleOption(const KItemListStyleOption& option) +QSizeF KItemListView::itemSize() const { - const KItemListStyleOption previousOption = m_styleOption; - m_styleOption = option; - - bool animate = true; - const QSizeF margin(option.horizontalMargin, option.verticalMargin); - if (margin != m_layouter->itemMargin()) { - // Skip animations when the number of rows or columns - // are changed in the grid layout. Although the animation - // engine can handle this usecase, it looks obtrusive. - animate = !changesItemGridLayout(m_layouter->size(), - m_layouter->itemSize(), - margin); - m_layouter->setItemMargin(margin); - } - - if (m_grouped) { - updateGroupHeaderHeight(); - } - - QHashIterator it(m_visibleItems); - while (it.hasNext()) { - it.next(); - it.value()->setStyleOption(option); - } - - m_sizeHintResolver->clearCache(); - doLayout(animate ? Animation : NoAnimation); + return m_itemSize; +} - onStyleOptionChanged(option, previousOption); +QSizeF KItemListView::itemSizeHint() const +{ + return m_sizeHintResolver->maxSizeHint(); } const KItemListStyleOption& KItemListView::styleOption() const @@ -403,39 +360,20 @@ void KItemListView::setGeometry(const QRectF& rect) const QSizeF newSize = rect.size(); if (m_itemSize.isEmpty()) { - // The item size is dynamic: - // Changing the geometry does not require to do an expensive - // update of the visible-roles sizes, only the stretched sizes - // need to be adjusted to the new size. - updateStretchedVisibleRolesSizes(); - - if (m_useHeaderWidths) { - QSizeF dynamicItemSize = m_layouter->itemSize(); - - if (m_itemSize.width() < 0) { - const qreal requiredWidth = visibleRolesSizesWidthSum(); - if (newSize.width() > requiredWidth) { - dynamicItemSize.setWidth(newSize.width()); - } - const qreal headerWidth = qMax(newSize.width(), requiredWidth); - m_header->resize(headerWidth, m_header->size().height()); - } - - if (m_itemSize.height() < 0) { - const qreal requiredHeight = visibleRolesSizesHeightSum(); - if (newSize.height() > requiredHeight) { - dynamicItemSize.setHeight(newSize.height()); - } - // TODO: KItemListHeader is not prepared for vertical alignment - } - + m_headerWidget->resize(rect.width(), m_headerWidget->size().height()); + if (m_headerWidget->automaticColumnResizing()) { + applyAutomaticColumnWidths(); + } else { + const qreal requiredWidth = columnWidthsSum(); + const QSizeF dynamicItemSize(qMax(newSize.width(), requiredWidth), + m_itemSize.height()); m_layouter->setItemSize(dynamicItemSize); } // Triggering a synchronous layout is fine from a performance point of view, // as with dynamic item sizes no moving animation must be done. m_layouter->setSize(newSize); - doLayout(Animation); + doLayout(NoAnimation); } else { const bool animate = !changesItemGridLayout(newSize, m_layouter->itemSize(), @@ -456,6 +394,15 @@ void KItemListView::setGeometry(const QRectF& rect) } } +qreal KItemListView::verticalPageStep() const +{ + qreal headerHeight = 0; + if (m_headerWidget->isVisible()) { + headerHeight = m_headerWidget->size().height(); + } + return size().height() - headerHeight; +} + int KItemListView::itemAt(const QPointF& pos) const { QHashIterator it(m_visibleItems); @@ -502,6 +449,19 @@ bool KItemListView::isAboveExpansionToggle(int index, const QPointF& pos) const return false; } +bool KItemListView::isAboveText(int index, const QPointF &pos) const +{ + const KItemListWidget* widget = m_visibleItems.value(index); + if (widget) { + const QRectF &textRect = widget->textRect(); + if (!textRect.isEmpty()) { + const QPointF mappedPos = widget->mapFromItem(this, pos); + return textRect.contains(mappedPos); + } + } + return false; +} + int KItemListView::firstVisibleIndex() const { return m_layouter->firstVisibleIndex(); @@ -512,16 +472,9 @@ int KItemListView::lastVisibleIndex() const return m_layouter->lastVisibleIndex(); } -QSizeF KItemListView::itemSizeHint(int index) const -{ - Q_UNUSED(index); - return itemSize(); -} - -QHash KItemListView::visibleRolesSizes(const KItemRangeList& itemRanges) const +void KItemListView::calculateItemSizeHints(QVector& logicalHeightHints, qreal& logicalWidthHint) const { - Q_UNUSED(itemRanges); - return QHash(); + widgetCreator()->calculateItemSizeHints(logicalHeightHints, logicalWidthHint, this); } void KItemListView::setSupportsItemExpanding(bool supportsExpanding) @@ -559,11 +512,15 @@ QRectF KItemListView::itemContextRect(int index) const void KItemListView::scrollToItem(int index) { QRectF viewGeometry = geometry(); - if (m_header) { - const qreal headerHeight = m_header->size().height(); + if (m_headerWidget->isVisible()) { + const qreal headerHeight = m_headerWidget->size().height(); viewGeometry.adjust(0, headerHeight, 0, 0); } - const QRectF currentRect = itemRect(index); + QRectF currentRect = itemRect(index); + + // Fix for Bug 311099 - View the underscore when using Ctrl + PagDown + currentRect.adjust(-m_styleOption.horizontalMargin, -m_styleOption.verticalMargin, + m_styleOption.horizontalMargin, m_styleOption.verticalMargin); if (!viewGeometry.contains(currentRect)) { qreal newOffset = scrollOffset(); @@ -600,7 +557,7 @@ void KItemListView::endTransaction() --m_activeTransactions; if (m_activeTransactions < 0) { m_activeTransactions = 0; - kWarning() << "Mismatch between beginTransaction()/endTransaction()"; + qCWarning(DolphinDebug) << "Mismatch between beginTransaction()/endTransaction()"; } if (m_activeTransactions == 0) { @@ -615,46 +572,91 @@ bool KItemListView::isTransactionActive() const return m_activeTransactions > 0; } -void KItemListView::setHeaderShown(bool show) -{ - - if (show && !m_header) { - m_header = new KItemListHeader(this); - m_header->setPos(0, 0); - m_header->setModel(m_model); - m_header->setVisibleRoles(m_visibleRoles); - m_header->setVisibleRolesWidths(headerRolesWidths()); - m_header->setZValue(1); - - connect(m_header, SIGNAL(visibleRoleWidthChanged(QByteArray,qreal,qreal)), - this, SLOT(slotVisibleRoleWidthChanged(QByteArray,qreal,qreal))); - connect(m_header, SIGNAL(visibleRoleMoved(QByteArray,int,int)), - this, SLOT(slotVisibleRoleMoved(QByteArray,int,int))); - connect(m_header, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)), - this, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder))); - connect(m_header, SIGNAL(sortRoleChanged(QByteArray,QByteArray)), - this, SIGNAL(sortRoleChanged(QByteArray,QByteArray))); +void KItemListView::setHeaderVisible(bool visible) +{ + if (visible && !m_headerWidget->isVisible()) { + QStyleOptionHeader option; + const QSize headerSize = style()->sizeFromContents(QStyle::CT_HeaderSection, + &option, QSize()); + + m_headerWidget->setPos(0, 0); + m_headerWidget->resize(size().width(), headerSize.height()); + m_headerWidget->setModel(m_model); + m_headerWidget->setColumns(m_visibleRoles); + m_headerWidget->setZValue(1); + + connect(m_headerWidget, &KItemListHeaderWidget::columnWidthChanged, + this, &KItemListView::slotHeaderColumnWidthChanged); + connect(m_headerWidget, &KItemListHeaderWidget::columnMoved, + this, &KItemListView::slotHeaderColumnMoved); + connect(m_headerWidget, &KItemListHeaderWidget::sortOrderChanged, + this, &KItemListView::sortOrderChanged); + connect(m_headerWidget, &KItemListHeaderWidget::sortRoleChanged, + this, &KItemListView::sortRoleChanged); + + m_layouter->setHeaderHeight(headerSize.height()); + m_headerWidget->setVisible(true); + } else if (!visible && m_headerWidget->isVisible()) { + disconnect(m_headerWidget, &KItemListHeaderWidget::columnWidthChanged, + this, &KItemListView::slotHeaderColumnWidthChanged); + disconnect(m_headerWidget, &KItemListHeaderWidget::columnMoved, + this, &KItemListView::slotHeaderColumnMoved); + disconnect(m_headerWidget, &KItemListHeaderWidget::sortOrderChanged, + this, &KItemListView::sortOrderChanged); + disconnect(m_headerWidget, &KItemListHeaderWidget::sortRoleChanged, + this, &KItemListView::sortRoleChanged); - m_useHeaderWidths = false; - - m_layouter->setHeaderHeight(m_header->size().height()); - } else if (!show && m_header) { - delete m_header; - m_header = 0; - m_useHeaderWidths = false; m_layouter->setHeaderHeight(0); + m_headerWidget->setVisible(false); } } -bool KItemListView::isHeaderShown() const +bool KItemListView::isHeaderVisible() const +{ + return m_headerWidget->isVisible(); +} + +KItemListHeader* KItemListView::header() const { - return m_header != 0; + return m_header; } -QPixmap KItemListView::createDragPixmap(const QSet& indexes) const +QPixmap KItemListView::createDragPixmap(const KItemSet& indexes) const { - Q_UNUSED(indexes); - return QPixmap(); + QPixmap pixmap; + + if (indexes.count() == 1) { + KItemListWidget* item = m_visibleItems.value(indexes.first()); + QGraphicsView* graphicsView = scene()->views()[0]; + if (item && graphicsView) { + pixmap = item->createDragPixmap(0, graphicsView); + } + } else { + // TODO: Not implemented yet. Probably extend the interface + // from KItemListWidget::createDragPixmap() to return a pixmap + // that can be used for multiple indexes. + } + + return pixmap; +} + +void KItemListView::editRole(int index, const QByteArray& role) +{ + KStandardItemListWidget* widget = qobject_cast(m_visibleItems.value(index)); + if (!widget || m_editingRole) { + return; + } + + m_editingRole = true; + widget->setEditedRole(role); + + connect(widget, &KItemListWidget::roleEditingCanceled, + this, &KItemListView::slotRoleEditingCanceled); + connect(widget, &KItemListWidget::roleEditingFinished, + this, &KItemListView::slotRoleEditingFinished); + + connect(this, &KItemListView::scrollOffsetChanged, + widget, &KStandardItemListWidget::finishRoleEditing); } void KItemListView::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget) @@ -679,6 +681,165 @@ void KItemListView::paint(QPainter* painter, const QStyleOptionGraphicsItem* opt opt.rect = rubberBandRect.toRect(); style()->drawControl(QStyle::CE_RubberBand, &opt, painter); } + + if (!m_dropIndicator.isEmpty()) { + const QRectF r = m_dropIndicator.toRect(); + + QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color(); + painter->setPen(color); + + // TODO: The following implementation works only for a vertical scroll-orientation + // and assumes a height of the m_draggingInsertIndicator of 1. + Q_ASSERT(r.height() == 1); + painter->drawLine(r.left() + 1, r.top(), r.right() - 1, r.top()); + + color.setAlpha(128); + painter->setPen(color); + painter->drawRect(r.left(), r.top() - 1, r.width() - 1, 2); + } +} + +QVariant KItemListView::itemChange(GraphicsItemChange change, const QVariant &value) +{ + if (change == QGraphicsItem::ItemSceneHasChanged && scene()) { + if (!scene()->views().isEmpty()) { + m_styleOption.palette = scene()->views().at(0)->palette(); + } + } + return QGraphicsItem::itemChange(change, value); +} + +void KItemListView::setItemSize(const QSizeF& size) +{ + const QSizeF previousSize = m_itemSize; + if (size == previousSize) { + return; + } + + // Skip animations when the number of rows or columns + // are changed in the grid layout. Although the animation + // engine can handle this usecase, it looks obtrusive. + const bool animate = !changesItemGridLayout(m_layouter->size(), + size, + m_layouter->itemMargin()); + + const bool alternateBackgroundsChanged = (m_visibleRoles.count() > 1) && + (( m_itemSize.isEmpty() && !size.isEmpty()) || + (!m_itemSize.isEmpty() && size.isEmpty())); + + m_itemSize = size; + + if (alternateBackgroundsChanged) { + // For an empty item size alternate backgrounds are drawn if more than + // one role is shown. Assure that the backgrounds for visible items are + // updated when changing the size in this context. + updateAlternateBackgrounds(); + } + + if (size.isEmpty()) { + if (m_headerWidget->automaticColumnResizing()) { + updatePreferredColumnWidths(); + } else { + // Only apply the changed height and respect the header widths + // set by the user + const qreal currentWidth = m_layouter->itemSize().width(); + const QSizeF newSize(currentWidth, size.height()); + m_layouter->setItemSize(newSize); + } + } else { + m_layouter->setItemSize(size); + } + + m_sizeHintResolver->clearCache(); + doLayout(animate ? Animation : NoAnimation); + onItemSizeChanged(size, previousSize); +} + +void KItemListView::setStyleOption(const KItemListStyleOption& option) +{ + const KItemListStyleOption previousOption = m_styleOption; + m_styleOption = option; + + bool animate = true; + const QSizeF margin(option.horizontalMargin, option.verticalMargin); + if (margin != m_layouter->itemMargin()) { + // Skip animations when the number of rows or columns + // are changed in the grid layout. Although the animation + // engine can handle this usecase, it looks obtrusive. + animate = !changesItemGridLayout(m_layouter->size(), + m_layouter->itemSize(), + margin); + m_layouter->setItemMargin(margin); + } + + if (m_grouped) { + updateGroupHeaderHeight(); + } + + if (animate && + (previousOption.maxTextLines != option.maxTextLines || previousOption.maxTextWidth != option.maxTextWidth)) { + // Animating a change of the maximum text size just results in expensive + // temporary eliding and clipping operations and does not look good visually. + animate = false; + } + + QHashIterator it(m_visibleItems); + while (it.hasNext()) { + it.next(); + it.value()->setStyleOption(option); + } + + m_sizeHintResolver->clearCache(); + m_layouter->markAsDirty(); + doLayout(animate ? Animation : NoAnimation); + + if (m_itemSize.isEmpty()) { + updatePreferredColumnWidths(); + } + + onStyleOptionChanged(option, previousOption); +} + +void KItemListView::setScrollOrientation(Qt::Orientation orientation) +{ + const Qt::Orientation previousOrientation = m_layouter->scrollOrientation(); + if (orientation == previousOrientation) { + return; + } + + m_layouter->setScrollOrientation(orientation); + m_animation->setScrollOrientation(orientation); + m_sizeHintResolver->clearCache(); + + if (m_grouped) { + QMutableHashIterator it (m_visibleGroups); + while (it.hasNext()) { + it.next(); + it.value()->setScrollOrientation(orientation); + } + updateGroupHeaderHeight(); + + } + + doLayout(NoAnimation); + + onScrollOrientationChanged(orientation, previousOrientation); + emit scrollOrientationChanged(orientation, previousOrientation); +} + +Qt::Orientation KItemListView::scrollOrientation() const +{ + return m_layouter->scrollOrientation(); +} + +KItemListWidgetCreatorBase* KItemListView::defaultWidgetCreator() const +{ + return 0; +} + +KItemListGroupHeaderCreatorBase* KItemListView::defaultGroupHeaderCreator() const +{ + return 0; } void KItemListView::initializeItemListWidget(KItemListWidget* item) @@ -749,11 +910,23 @@ void KItemListView::onTransactionEnd() bool KItemListView::event(QEvent* event) { - // Forward all events to the controller and handle them there - if (m_controller && m_controller->processEvent(event, transform())) { - event->accept(); - return true; + switch (event->type()) { + case QEvent::PaletteChange: + updatePalette(); + break; + + case QEvent::FontChange: + updateFont(); + break; + + default: + // Forward all other events to the controller and handle them there + if (!m_editingRole && m_controller && m_controller->processEvent(event, transform())) { + event->accept(); + return true; + } } + return QGraphicsWidget::event(event); } @@ -779,7 +952,7 @@ void KItemListView::dragEnterEvent(QGraphicsSceneDragDropEvent* event) setAutoScroll(true); } -void KItemListView::dragMoveEvent(QGraphicsSceneDragDropEvent *event) +void KItemListView::dragMoveEvent(QGraphicsSceneDragDropEvent* event) { QGraphicsWidget::dragMoveEvent(event); @@ -789,7 +962,7 @@ void KItemListView::dragMoveEvent(QGraphicsSceneDragDropEvent *event) } } -void KItemListView::dragLeaveEvent(QGraphicsSceneDragDropEvent *event) +void KItemListView::dragLeaveEvent(QGraphicsSceneDragDropEvent* event) { QGraphicsWidget::dragLeaveEvent(event); setAutoScroll(false); @@ -806,9 +979,32 @@ QList KItemListView::visibleItemListWidgets() const return m_visibleItems.values(); } +void KItemListView::updateFont() +{ + if (scene() && !scene()->views().isEmpty()) { + KItemListStyleOption option = styleOption(); + option.font = scene()->views().first()->font(); + option.fontMetrics = QFontMetrics(option.font); + + setStyleOption(option); + } +} + +void KItemListView::updatePalette() +{ + if (scene() && !scene()->views().isEmpty()) { + KItemListStyleOption option = styleOption(); + option.palette = scene()->views().first()->palette(); + + setStyleOption(option); + } +} + void KItemListView::slotItemsInserted(const KItemRangeList& itemRanges) { - updateVisibleRolesSizes(itemRanges); + if (m_itemSize.isEmpty()) { + updatePreferredColumnWidths(itemRanges); + } const bool hasMultipleRanges = (itemRanges.count() > 1); if (hasMultipleRanges) { @@ -817,6 +1013,8 @@ void KItemListView::slotItemsInserted(const KItemRangeList& itemRanges) m_layouter->markAsDirty(); + m_sizeHintResolver->itemsInserted(itemRanges); + int previouslyInsertedCount = 0; foreach (const KItemRange& range, itemRanges) { // range.index is related to the model before anything has been inserted. @@ -825,13 +1023,11 @@ void KItemListView::slotItemsInserted(const KItemRangeList& itemRanges) const int index = range.index + previouslyInsertedCount; const int count = range.count; if (index < 0 || count <= 0) { - kWarning() << "Invalid item range (index:" << index << ", count:" << count << ")"; + qCWarning(DolphinDebug) << "Invalid item range (index:" << index << ", count:" << count << ")"; continue; } previouslyInsertedCount += count; - m_sizeHintResolver->itemsInserted(index, count); - // Determine which visible items must be moved QList itemsToMove; QHashIterator it(m_visibleItems); @@ -868,11 +1064,17 @@ void KItemListView::slotItemsInserted(const KItemRangeList& itemRanges) (!verticalScrollOrientation && maximumScrollOffset() > size().width()); if (decreaseLayouterSize) { const int scrollBarExtent = style()->pixelMetric(QStyle::PM_ScrollBarExtent); + + int scrollbarSpacing = 0; + if (style()->styleHint(QStyle::SH_ScrollView_FrameOnlyAroundContents)) { + scrollbarSpacing = style()->pixelMetric(QStyle::PM_ScrollView_ScrollBarSpacing); + } + QSizeF layouterSize = m_layouter->size(); if (verticalScrollOrientation) { - layouterSize.rwidth() -= scrollBarExtent; + layouterSize.rwidth() -= scrollBarExtent + scrollbarSpacing; } else { - layouterSize.rheight() -= scrollBarExtent; + layouterSize.rheight() -= scrollBarExtent + scrollbarSpacing; } m_layouter->setSize(layouterSize); } @@ -889,21 +1091,31 @@ void KItemListView::slotItemsInserted(const KItemRangeList& itemRanges) } if (hasMultipleRanges) { -#ifndef QT_NO_DEBUG - // Important: Don't read any m_layouter-property inside the for-loop in case if - // multiple ranges are given! m_layouter accesses m_sizeHintResolver which is - // updated in each loop-cycle and has only a consistent state after the loop. - Q_ASSERT(m_layouter->isDirty()); -#endif m_endTransactionAnimationHint = NoAnimation; endTransaction(); + updateSiblingsInformation(); } + + if (m_grouped && (hasMultipleRanges || itemRanges.first().count < m_model->count())) { + // In case if items of the same group have been inserted before an item that + // currently represents the first item of the group, the group header of + // this item must be removed. + updateVisibleGroupHeaders(); + } + + if (useAlternateBackgrounds()) { + updateAlternateBackgrounds(); + } } void KItemListView::slotItemsRemoved(const KItemRangeList& itemRanges) { - updateVisibleRolesSizes(); + if (m_itemSize.isEmpty()) { + // Don't pass the item-range: The preferred column-widths of + // all items must be adjusted when removing items. + updatePreferredColumnWidths(); + } const bool hasMultipleRanges = (itemRanges.count() > 1); if (hasMultipleRanges) { @@ -912,25 +1124,30 @@ void KItemListView::slotItemsRemoved(const KItemRangeList& itemRanges) m_layouter->markAsDirty(); + m_sizeHintResolver->itemsRemoved(itemRanges); + for (int i = itemRanges.count() - 1; i >= 0; --i) { - const KItemRange& range = itemRanges.at(i); + const KItemRange& range = itemRanges[i]; const int index = range.index; const int count = range.count; if (index < 0 || count <= 0) { - kWarning() << "Invalid item range (index:" << index << ", count:" << count << ")"; + qCWarning(DolphinDebug) << "Invalid item range (index:" << index << ", count:" << count << ")"; continue; } - m_sizeHintResolver->itemsRemoved(index, count); - const int firstRemovedIndex = index; const int lastRemovedIndex = index + count - 1; - const int lastIndex = m_model->count() + count - 1; + + // Remember which items have to be moved because they are behind the removed range. + QVector itemsToMove; // Remove all KItemListWidget instances that got deleted - for (int i = firstRemovedIndex; i <= lastRemovedIndex; ++i) { - KItemListWidget* widget = m_visibleItems.value(i); - if (!widget) { + foreach (KItemListWidget* widget, m_visibleItems) { + const int i = widget->index(); + if (i < firstRemovedIndex) { + continue; + } else if (i > lastRemovedIndex) { + itemsToMove.append(i); continue; } @@ -958,17 +1175,18 @@ void KItemListView::slotItemsRemoved(const KItemRangeList& itemRanges) } // Update the indexes of all KItemListWidget instances that are located - // after the deleted items - for (int i = lastRemovedIndex + 1; i <= lastIndex; ++i) { + // after the deleted items. It is important to update them in ascending + // order to prevent overlaps when setting the new index. + std::sort(itemsToMove.begin(), itemsToMove.end()); + foreach (int i, itemsToMove) { KItemListWidget* widget = m_visibleItems.value(i); - if (widget) { - const int newIndex = i - count; - if (hasMultipleRanges) { - setWidgetIndex(widget, newIndex); - } else { - // Try to animate the moving of the item - moveWidgetToIndex(widget, newIndex); - } + Q_ASSERT(widget); + const int newIndex = i - count; + if (hasMultipleRanges) { + setWidgetIndex(widget, newIndex); + } else { + // Try to animate the moving of the item + moveWidgetToIndex(widget, newIndex); } } @@ -990,21 +1208,25 @@ void KItemListView::slotItemsRemoved(const KItemRangeList& itemRanges) } if (hasMultipleRanges) { -#ifndef QT_NO_DEBUG - // Important: Don't read any m_layouter-property inside the for-loop in case if - // multiple ranges are given! m_layouter accesses m_sizeHintResolver which is - // updated in each loop-cycle and has only a consistent state after the loop. - Q_ASSERT(m_layouter->isDirty()); -#endif m_endTransactionAnimationHint = NoAnimation; endTransaction(); updateSiblingsInformation(); } + + if (m_grouped && (hasMultipleRanges || m_model->count() > 0)) { + // In case if the first item of a group has been removed, the group header + // must be applied to the next visible item. + updateVisibleGroupHeaders(); + } + + if (useAlternateBackgrounds()) { + updateAlternateBackgrounds(); + } } void KItemListView::slotItemsMoved(const KItemRange& itemRange, const QList& movedToIndexes) { - m_sizeHintResolver->itemsMoved(itemRange.index, itemRange.count); + m_sizeHintResolver->itemsMoved(itemRange, movedToIndexes); m_layouter->markAsDirty(); if (m_controller) { @@ -1030,8 +1252,8 @@ void KItemListView::slotItemsChanged(const KItemRangeList& itemRanges, const QSet& roles) { const bool updateSizeHints = itemSizeHintUpdateRequired(roles); - if (updateSizeHints) { - updateVisibleRolesSizes(itemRanges); + if (updateSizeHints && m_itemSize.isEmpty()) { + updatePreferredColumnWidths(itemRanges); } foreach (const KItemRange& itemRange, itemRanges) { @@ -1062,9 +1284,21 @@ void KItemListView::slotItemsChanged(const KItemRangeList& itemRanges, updateVisibleGroupHeaders(); doLayout(NoAnimation); } + + QAccessibleTableModelChangeEvent ev(this, QAccessibleTableModelChangeEvent::DataChanged); + ev.setFirstRow(itemRange.index); + ev.setLastRow(itemRange.index + itemRange.count); + QAccessible::updateAccessibility(&ev); } } +void KItemListView::slotGroupsChanged() +{ + updateVisibleGroupHeaders(); + doLayout(NoAnimation); + updateSiblingsInformation(); +} + void KItemListView::slotGroupedSortingChanged(bool current) { m_grouped = current; @@ -1073,8 +1307,10 @@ void KItemListView::slotGroupedSortingChanged(bool current) if (m_grouped) { updateGroupHeaderHeight(); } else { - // Clear all visible headers - QMutableHashIterator it (m_visibleGroups); + // Clear all visible headers. Note that the QHashIterator takes a copy of + // m_visibleGroups. Therefore, it remains valid even if items are removed + // from m_visibleGroups in recycleGroupHeaderForWidget(). + QHashIterator it(m_visibleGroups); while (it.hasNext()) { it.next(); recycleGroupHeaderForWidget(it.key()); @@ -1086,13 +1322,8 @@ void KItemListView::slotGroupedSortingChanged(bool current) // Changing the group mode requires to update the alternate backgrounds // as with the enabled group mode the altering is done on base of the first // group item. - QHashIterator it(m_visibleItems); - while (it.hasNext()) { - it.next(); - updateAlternateBackgroundForWidget(it.value()); - } + updateAlternateBackgrounds(); } - updateSiblingsInformation(); doLayout(NoAnimation); } @@ -1121,18 +1352,26 @@ void KItemListView::slotCurrentChanged(int current, int previous) { Q_UNUSED(previous); - KItemListWidget* previousWidget = m_visibleItems.value(previous, 0); - if (previousWidget) { - previousWidget->setCurrent(false); - } + // In SingleSelection mode (e.g., in the Places Panel), the current item is + // always the selected item. It is not necessary to highlight the current item then. + if (m_controller->selectionBehavior() != KItemListController::SingleSelection) { + KItemListWidget* previousWidget = m_visibleItems.value(previous, 0); + if (previousWidget) { + previousWidget->setCurrent(false); + } - KItemListWidget* currentWidget = m_visibleItems.value(current, 0); - if (currentWidget) { - currentWidget->setCurrent(true); + KItemListWidget* currentWidget = m_visibleItems.value(current, 0); + if (currentWidget) { + currentWidget->setCurrent(true); + } } + + QAccessibleEvent ev(this, QAccessible::Focus); + ev.setChild(current); + QAccessible::updateAccessibility(&ev); } -void KItemListView::slotSelectionChanged(const QSet& current, const QSet& previous) +void KItemListView::slotSelectionChanged(const KItemSet& current, const KItemSet& previous) { Q_UNUSED(previous); @@ -1162,7 +1401,7 @@ void KItemListView::slotAnimationFinished(QGraphicsWidget* widget, // by m_visibleWidgets and must be deleted manually after the animation has // been finished. recycleGroupHeaderForWidget(itemListWidget); - m_widgetCreator->recycle(itemListWidget); + widgetCreator()->recycle(itemListWidget); break; } @@ -1196,58 +1435,34 @@ void KItemListView::slotRubberBandPosChanged() void KItemListView::slotRubberBandActivationChanged(bool active) { if (active) { - connect(m_rubberBand, SIGNAL(startPositionChanged(QPointF,QPointF)), this, SLOT(slotRubberBandPosChanged())); - connect(m_rubberBand, SIGNAL(endPositionChanged(QPointF,QPointF)), this, SLOT(slotRubberBandPosChanged())); + connect(m_rubberBand, &KItemListRubberBand::startPositionChanged, this, &KItemListView::slotRubberBandPosChanged); + connect(m_rubberBand, &KItemListRubberBand::endPositionChanged, this, &KItemListView::slotRubberBandPosChanged); m_skipAutoScrollForRubberBand = true; } else { - disconnect(m_rubberBand, SIGNAL(startPositionChanged(QPointF,QPointF)), this, SLOT(slotRubberBandPosChanged())); - disconnect(m_rubberBand, SIGNAL(endPositionChanged(QPointF,QPointF)), this, SLOT(slotRubberBandPosChanged())); + disconnect(m_rubberBand, &KItemListRubberBand::startPositionChanged, this, &KItemListView::slotRubberBandPosChanged); + disconnect(m_rubberBand, &KItemListRubberBand::endPositionChanged, this, &KItemListView::slotRubberBandPosChanged); m_skipAutoScrollForRubberBand = false; } update(); } -void KItemListView::slotVisibleRoleWidthChanged(const QByteArray& role, - qreal currentWidth, - qreal previousWidth) +void KItemListView::slotHeaderColumnWidthChanged(const QByteArray& role, + qreal currentWidth, + qreal previousWidth) { + Q_UNUSED(role); + Q_UNUSED(currentWidth); Q_UNUSED(previousWidth); - m_useHeaderWidths = true; - - if (m_visibleRolesSizes.contains(role)) { - QSizeF roleSize = m_visibleRolesSizes.value(role); - roleSize.setWidth(currentWidth); - m_visibleRolesSizes.insert(role, roleSize); - m_stretchedVisibleRolesSizes.insert(role, roleSize); - - // Apply the new size to the layouter - QSizeF dynamicItemSize = m_itemSize; - if (dynamicItemSize.width() < 0) { - const qreal requiredWidth = visibleRolesSizesWidthSum(); - dynamicItemSize.setWidth(qMax(size().width(), requiredWidth)); - } - if (dynamicItemSize.height() < 0) { - const qreal requiredHeight = visibleRolesSizesHeightSum(); - dynamicItemSize.setHeight(qMax(size().height(), requiredHeight)); - } - - m_layouter->setItemSize(dynamicItemSize); - - // Update the role sizes for all visible widgets - QHashIterator it(m_visibleItems); - while (it.hasNext()) { - it.next(); - it.value()->setVisibleRolesSizes(m_stretchedVisibleRolesSizes); - } - doLayout(NoAnimation); - } + m_headerWidget->setAutomaticColumnResizing(false); + applyColumnWidthsFromHeader(); + doLayout(NoAnimation); } -void KItemListView::slotVisibleRoleMoved(const QByteArray& role, - int currentIndex, - int previousIndex) +void KItemListView::slotHeaderColumnMoved(const QByteArray& role, + int currentIndex, + int previousIndex) { Q_ASSERT(m_visibleRoles[previousIndex] == role); @@ -1316,9 +1531,9 @@ void KItemListView::triggerAutoScrolling() const qreal newScrollOffset = qMin(scrollOffset() + m_autoScrollIncrement, maxVisibleOffset); setScrollOffset(newScrollOffset); - // Trigger the autoscroll timer which will periodically call - // triggerAutoScrolling() - m_autoScrollTimer->start(RepeatingAutoScrollDelay); + // Trigger the autoscroll timer which will periodically call + // triggerAutoScrolling() + m_autoScrollTimer->start(RepeatingAutoScrollDelay); } void KItemListView::slotGeometryOfGroupHeaderParentChanged() @@ -1330,22 +1545,38 @@ void KItemListView::slotGeometryOfGroupHeaderParentChanged() updateGroupHeaderLayout(widget); } +void KItemListView::slotRoleEditingCanceled(int index, const QByteArray& role, const QVariant& value) +{ + disconnectRoleEditingSignals(index); + + emit roleEditingCanceled(index, role, value); + m_editingRole = false; +} + +void KItemListView::slotRoleEditingFinished(int index, const QByteArray& role, const QVariant& value) +{ + disconnectRoleEditingSignals(index); + + emit roleEditingFinished(index, role, value); + m_editingRole = false; +} + void KItemListView::setController(KItemListController* controller) { if (m_controller != controller) { KItemListController* previous = m_controller; if (previous) { KItemListSelectionManager* selectionManager = previous->selectionManager(); - disconnect(selectionManager, SIGNAL(currentChanged(int,int)), this, SLOT(slotCurrentChanged(int,int))); - disconnect(selectionManager, SIGNAL(selectionChanged(QSet,QSet)), this, SLOT(slotSelectionChanged(QSet,QSet))); + disconnect(selectionManager, &KItemListSelectionManager::currentChanged, this, &KItemListView::slotCurrentChanged); + disconnect(selectionManager, &KItemListSelectionManager::selectionChanged, this, &KItemListView::slotSelectionChanged); } m_controller = controller; if (controller) { KItemListSelectionManager* selectionManager = controller->selectionManager(); - connect(selectionManager, SIGNAL(currentChanged(int,int)), this, SLOT(slotCurrentChanged(int,int))); - connect(selectionManager, SIGNAL(selectionChanged(QSet,QSet)), this, SLOT(slotSelectionChanged(QSet,QSet))); + connect(selectionManager, &KItemListSelectionManager::currentChanged, this, &KItemListView::slotCurrentChanged); + connect(selectionManager, &KItemListSelectionManager::selectionChanged, this, &KItemListView::slotSelectionChanged); } onControllerChanged(controller, previous); @@ -1361,20 +1592,24 @@ void KItemListView::setModel(KItemModelBase* model) KItemModelBase* previous = m_model; if (m_model) { - disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet)), - this, SLOT(slotItemsChanged(KItemRangeList,QSet))); - disconnect(m_model, SIGNAL(itemsInserted(KItemRangeList)), - this, SLOT(slotItemsInserted(KItemRangeList))); - disconnect(m_model, SIGNAL(itemsRemoved(KItemRangeList)), - this, SLOT(slotItemsRemoved(KItemRangeList))); - disconnect(m_model, SIGNAL(itemsMoved(KItemRange,QList)), - this, SLOT(slotItemsMoved(KItemRange,QList))); - disconnect(m_model, SIGNAL(groupedSortingChanged(bool)), - this, SLOT(slotGroupedSortingChanged(bool))); - disconnect(m_model, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)), - this, SLOT(slotSortOrderChanged(Qt::SortOrder,Qt::SortOrder))); - disconnect(m_model, SIGNAL(sortRoleChanged(QByteArray,QByteArray)), - this, SLOT(slotSortRoleChanged(QByteArray,QByteArray))); + disconnect(m_model, &KItemModelBase::itemsChanged, + this, &KItemListView::slotItemsChanged); + disconnect(m_model, &KItemModelBase::itemsInserted, + this, &KItemListView::slotItemsInserted); + disconnect(m_model, &KItemModelBase::itemsRemoved, + this, &KItemListView::slotItemsRemoved); + disconnect(m_model, &KItemModelBase::itemsMoved, + this, &KItemListView::slotItemsMoved); + disconnect(m_model, &KItemModelBase::groupsChanged, + this, &KItemListView::slotGroupsChanged); + disconnect(m_model, &KItemModelBase::groupedSortingChanged, + this, &KItemListView::slotGroupedSortingChanged); + disconnect(m_model, &KItemModelBase::sortOrderChanged, + this, &KItemListView::slotSortOrderChanged); + disconnect(m_model, &KItemModelBase::sortRoleChanged, + this, &KItemListView::slotSortRoleChanged); + + m_sizeHintResolver->itemsRemoved(KItemRangeList() << KItemRange(0, m_model->count())); } m_model = model; @@ -1382,20 +1617,27 @@ void KItemListView::setModel(KItemModelBase* model) m_grouped = model->groupedSorting(); if (m_model) { - connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet)), - this, SLOT(slotItemsChanged(KItemRangeList,QSet))); - connect(m_model, SIGNAL(itemsInserted(KItemRangeList)), - this, SLOT(slotItemsInserted(KItemRangeList))); - connect(m_model, SIGNAL(itemsRemoved(KItemRangeList)), - this, SLOT(slotItemsRemoved(KItemRangeList))); - connect(m_model, SIGNAL(itemsMoved(KItemRange,QList)), - this, SLOT(slotItemsMoved(KItemRange,QList))); - connect(m_model, SIGNAL(groupedSortingChanged(bool)), - this, SLOT(slotGroupedSortingChanged(bool))); - connect(m_model, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)), - this, SLOT(slotSortOrderChanged(Qt::SortOrder,Qt::SortOrder))); - connect(m_model, SIGNAL(sortRoleChanged(QByteArray,QByteArray)), - this, SLOT(slotSortRoleChanged(QByteArray,QByteArray))); + connect(m_model, &KItemModelBase::itemsChanged, + this, &KItemListView::slotItemsChanged); + connect(m_model, &KItemModelBase::itemsInserted, + this, &KItemListView::slotItemsInserted); + connect(m_model, &KItemModelBase::itemsRemoved, + this, &KItemListView::slotItemsRemoved); + connect(m_model, &KItemModelBase::itemsMoved, + this, &KItemListView::slotItemsMoved); + connect(m_model, &KItemModelBase::groupsChanged, + this, &KItemListView::slotGroupsChanged); + connect(m_model, &KItemModelBase::groupedSortingChanged, + this, &KItemListView::slotGroupedSortingChanged); + connect(m_model, &KItemModelBase::sortOrderChanged, + this, &KItemListView::slotSortOrderChanged); + connect(m_model, &KItemModelBase::sortRoleChanged, + this, &KItemListView::slotSortRoleChanged); + + const int itemCount = m_model->count(); + if (itemCount > 0) { + slotItemsInserted(KItemRangeList() << KItemRange(0, itemCount)); + } } onModelChanged(model, previous); @@ -1476,18 +1718,22 @@ void KItemListView::doLayout(LayoutAnimationHint hint, int changedIndex, int cha widget->resize(itemBounds.size()); if (animate && changedCount < 0) { - // Items have been deleted, move the created item to the - // imaginary old position. They will get animated to the new position - // later. - const QRectF itemRect = m_layouter->itemRect(i - changedCount); - if (itemRect.isEmpty()) { - const QPointF invisibleOldPos = (scrollOrientation() == Qt::Vertical) - ? QPointF(0, size().height()) : QPointF(size().width(), 0); - widget->setPos(invisibleOldPos); - } else { - widget->setPos(itemRect.topLeft()); + // Items have been deleted. + if (i >= changedIndex) { + // The item is located behind the removed range. Move the + // created item to the imaginary old position outside the + // view. It will get animated to the new position later. + const int previousIndex = i - changedCount; + const QRectF itemRect = m_layouter->itemRect(previousIndex); + if (itemRect.isEmpty()) { + const QPointF invisibleOldPos = (scrollOrientation() == Qt::Vertical) + ? QPointF(0, size().height()) : QPointF(size().width(), 0); + widget->setPos(invisibleOldPos); + } else { + widget->setPos(itemRect.topLeft()); + } + applyNewPos = false; } - applyNewPos = false; } if (supportsExpanding && changedCount == 0) { @@ -1499,9 +1745,14 @@ void KItemListView::doLayout(LayoutAnimationHint hint, int changedIndex, int cha } if (animate) { + if (m_animation->isStarted(widget, KItemListViewAnimation::MovingAnimation)) { + m_animation->start(widget, KItemListViewAnimation::MovingAnimation, newPos); + applyNewPos = false; + } + const bool itemsRemoved = (changedCount < 0); const bool itemsInserted = (changedCount > 0); - if (itemsRemoved && (i >= changedIndex + changedCount + 1)) { + if (itemsRemoved && (i >= changedIndex)) { // The item is located after the removed items. Animate the moving of the position. applyNewPos = !moveWidget(widget, newPos); } else if (itemsInserted && i >= changedIndex) { @@ -1629,17 +1880,22 @@ bool KItemListView::moveWidget(KItemListWidget* widget,const QPointF& newPos) bool startMovingAnim = false; - // When having a grid the moving-animation should only be started, if it is done within - // one row in the vertical scroll-orientation or one column in the horizontal scroll-orientation. - // Otherwise instead of a moving-animation a create-animation on the new position will be used - // instead. This is done to prevent overlapping (and confusing) moving-animations. - const int index = widget->index(); - const Cell cell = m_visibleCells.value(index); - if (cell.column >= 0 && cell.row >= 0) { - if (scrollOrientation() == Qt::Vertical) { - startMovingAnim = (cell.row == m_layouter->itemRow(index)); - } else { - startMovingAnim = (cell.column == m_layouter->itemColumn(index)); + if (m_itemSize.isEmpty()) { + // The items are not aligned in a grid but either as columns or rows. + startMovingAnim = true; + } else { + // When having a grid the moving-animation should only be started, if it is done within + // one row in the vertical scroll-orientation or one column in the horizontal scroll-orientation. + // Otherwise instead of a moving-animation a create-animation on the new position will be used + // instead. This is done to prevent overlapping (and confusing) moving-animations. + const int index = widget->index(); + const Cell cell = m_visibleCells.value(index); + if (cell.column >= 0 && cell.row >= 0) { + if (scrollOrientation() == Qt::Vertical) { + startMovingAnim = (cell.row == m_layouter->itemRow(index)); + } else { + startMovingAnim = (cell.column == m_layouter->itemColumn(index)); + } } } @@ -1682,7 +1938,7 @@ void KItemListView::emitOffsetChanges() KItemListWidget* KItemListView::createWidget(int index) { - KItemListWidget* widget = m_widgetCreator->create(this); + KItemListWidget* widget = widgetCreator()->create(this); widget->setFlag(QGraphicsItem::ItemStacksBehindParent); m_visibleItems.insert(index, widget); @@ -1702,7 +1958,7 @@ void KItemListView::recycleWidget(KItemListWidget* widget) m_visibleItems.remove(index); m_visibleCells.remove(index); - m_widgetCreator->recycle(widget); + widgetCreator()->recycle(widget); } void KItemListView::setWidgetIndex(KItemListWidget* widget, int index) @@ -1745,11 +2001,16 @@ void KItemListView::setLayouterSize(const QSizeF& size, SizeType sizeType) void KItemListView::updateWidgetProperties(KItemListWidget* widget, int index) { widget->setVisibleRoles(m_visibleRoles); - widget->setVisibleRolesSizes(m_stretchedVisibleRolesSizes); + updateWidgetColumnWidths(widget); widget->setStyleOption(m_styleOption); const KItemListSelectionManager* selectionManager = m_controller->selectionManager(); - widget->setCurrent(index == selectionManager->currentItem()); + + // In SingleSelection mode (e.g., in the Places Panel), the current item is + // always the selected item. It is not necessary to highlight the current item then. + if (m_controller->selectionBehavior() != KItemListController::SingleSelection) { + widget->setCurrent(index == selectionManager->currentItem()); + } widget->setSelected(selectionManager->isSelected(index)); widget->setHovered(false); widget->setEnabledSelectionToggle(enabledSelectionToggles()); @@ -1776,16 +2037,16 @@ void KItemListView::updateGroupHeaderForWidget(KItemListWidget* widget) } const QList > groups = model()->groups(); - if (groups.isEmpty()) { + if (groups.isEmpty() || !groupHeaderCreator()) { return; } KItemListGroupHeader* groupHeader = m_visibleGroups.value(widget); if (!groupHeader) { - groupHeader = m_groupHeaderCreator->create(this); + groupHeader = groupHeaderCreator()->create(this); groupHeader->setParentItem(widget); m_visibleGroups.insert(widget, groupHeader); - connect(widget, SIGNAL(geometryChanged()), this, SLOT(slotGeometryOfGroupHeaderParentChanged())); + connect(widget, &KItemListWidget::geometryChanged, this, &KItemListView::slotGeometryOfGroupHeaderParentChanged); } Q_ASSERT(groupHeader->parentItem() == widget); @@ -1815,8 +2076,10 @@ void KItemListView::updateGroupHeaderLayout(KItemListWidget* widget) // In the vertical scroll orientation the group header should always span // the whole width no matter which temporary position the parent widget // has. In this case the x-position and width will be adjusted manually. - groupHeader->setPos(-widget->x(), -groupHeaderRect.height()); - groupHeader->resize(size().width(), groupHeaderRect.size().height()); + const qreal x = -widget->x() - itemOffset(); + const qreal width = maximumItemOffset(); + groupHeader->setPos(x, -groupHeaderRect.height()); + groupHeader->resize(width, groupHeaderRect.size().height()); } else { groupHeader->setPos(groupHeaderRect.x() - itemRect.x(), -widget->y()); groupHeader->resize(groupHeaderRect.size()); @@ -1828,9 +2091,9 @@ void KItemListView::recycleGroupHeaderForWidget(KItemListWidget* widget) KItemListGroupHeader* header = m_visibleGroups.value(widget); if (header) { header->setParentItem(0); - m_groupHeaderCreator->recycle(header); + groupHeaderCreator()->recycle(header); m_visibleGroups.remove(widget); - disconnect(widget, SIGNAL(geometryChanged()), this, SLOT(slotGeometryOfGroupHeaderParentChanged())); + disconnect(widget, &KItemListWidget::geometryChanged, this, &KItemListView::slotGeometryOfGroupHeaderParentChanged); } } @@ -1876,6 +2139,15 @@ int KItemListView::groupIndexForItem(int index) const return mid; } +void KItemListView::updateAlternateBackgrounds() +{ + QHashIterator it(m_visibleItems); + while (it.hasNext()) { + it.next(); + updateAlternateBackgroundForWidget(it.value()); + } +} + void KItemListView::updateAlternateBackgroundForWidget(KItemListWidget* widget) { bool enabled = useAlternateBackgrounds(); @@ -1900,25 +2172,84 @@ bool KItemListView::useAlternateBackgrounds() const return m_itemSize.isEmpty() && m_visibleRoles.count() > 1; } -QHash KItemListView::headerRolesWidths() const +QHash KItemListView::preferredColumnWidths(const KItemRangeList& itemRanges) const { - QHash rolesWidths; + QElapsedTimer timer; + timer.start(); + + QHash widths; - QHashIterator it(m_stretchedVisibleRolesSizes); + // Calculate the minimum width for each column that is required + // to show the headline unclipped. + const QFontMetricsF fontMetrics(m_headerWidget->font()); + const int gripMargin = m_headerWidget->style()->pixelMetric(QStyle::PM_HeaderGripMargin); + const int headerMargin = m_headerWidget->style()->pixelMetric(QStyle::PM_HeaderMargin); + foreach (const QByteArray& visibleRole, visibleRoles()) { + const QString headerText = m_model->roleDescription(visibleRole); + const qreal headerWidth = fontMetrics.width(headerText) + gripMargin + headerMargin * 2; + widths.insert(visibleRole, headerWidth); + } + + // Calculate the preferred column withs for each item and ignore values + // smaller than the width for showing the headline unclipped. + const KItemListWidgetCreatorBase* creator = widgetCreator(); + int calculatedItemCount = 0; + bool maxTimeExceeded = false; + foreach (const KItemRange& itemRange, itemRanges) { + const int startIndex = itemRange.index; + const int endIndex = startIndex + itemRange.count - 1; + + for (int i = startIndex; i <= endIndex; ++i) { + foreach (const QByteArray& visibleRole, visibleRoles()) { + qreal maxWidth = widths.value(visibleRole, 0); + const qreal width = creator->preferredRoleColumnWidth(visibleRole, i, this); + maxWidth = qMax(width, maxWidth); + widths.insert(visibleRole, maxWidth); + } + + if (calculatedItemCount > 100 && timer.elapsed() > 200) { + // When having several thousands of items calculating the sizes can get + // very expensive. We accept a possibly too small role-size in favour + // of having no blocking user interface. + maxTimeExceeded = true; + break; + } + ++calculatedItemCount; + } + if (maxTimeExceeded) { + break; + } + } + + return widths; +} + +void KItemListView::applyColumnWidthsFromHeader() +{ + // Apply the new size to the layouter + const qreal requiredWidth = columnWidthsSum(); + const QSizeF dynamicItemSize(qMax(size().width(), requiredWidth), + m_itemSize.height()); + m_layouter->setItemSize(dynamicItemSize); + + // Update the role sizes for all visible widgets + QHashIterator it(m_visibleItems); while (it.hasNext()) { it.next(); - rolesWidths.insert(it.key(), it.value().width()); + updateWidgetColumnWidths(it.value()); } - - return rolesWidths; } -void KItemListView::updateVisibleRolesSizes(const KItemRangeList& itemRanges) +void KItemListView::updateWidgetColumnWidths(KItemListWidget* widget) { - if (!m_itemSize.isEmpty() || m_useHeaderWidths) { - return; + foreach (const QByteArray& role, m_visibleRoles) { + widget->setColumnWidth(role, m_headerWidget->columnWidth(role)); } +} +void KItemListView::updatePreferredColumnWidths(const KItemRangeList& itemRanges) +{ + Q_ASSERT(m_itemSize.isEmpty()); const int itemCount = m_model->count(); int rangesItemCount = 0; foreach (const KItemRange& range, itemRanges) { @@ -1926,141 +2257,118 @@ void KItemListView::updateVisibleRolesSizes(const KItemRangeList& itemRanges) } if (itemCount == rangesItemCount) { - m_visibleRolesSizes = visibleRolesSizes(itemRanges); - if (m_header) { - // Assure the the sizes are not smaller than the minimum defined by the header - // TODO: Currently only implemented for a top-aligned header - const qreal minHeaderRoleWidth = m_header->minimumRoleWidth(); - QMutableHashIterator it (m_visibleRolesSizes); - while (it.hasNext()) { - it.next(); - const QSizeF& size = it.value(); - if (size.width() < minHeaderRoleWidth) { - const QSizeF newSize(minHeaderRoleWidth, size.height()); - m_visibleRolesSizes.insert(it.key(), newSize); - } - } + const QHash preferredWidths = preferredColumnWidths(itemRanges); + foreach (const QByteArray& role, m_visibleRoles) { + m_headerWidget->setPreferredColumnWidth(role, preferredWidths.value(role)); } } else { // Only a sub range of the roles need to be determined. - // The chances are good that the sizes of the sub ranges - // already fit into the available sizes and hence no + // The chances are good that the widths of the sub ranges + // already fit into the available widths and hence no // expensive update might be required. - bool updateRequired = false; + bool changed = false; - const QHash updatedSizes = visibleRolesSizes(itemRanges); - QHashIterator it(updatedSizes); + const QHash updatedWidths = preferredColumnWidths(itemRanges); + QHashIterator it(updatedWidths); while (it.hasNext()) { it.next(); const QByteArray& role = it.key(); - const QSizeF& updatedSize = it.value(); - const QSizeF currentSize = m_visibleRolesSizes.value(role); - if (updatedSize.width() > currentSize.width() || updatedSize.height() > currentSize.height()) { - m_visibleRolesSizes.insert(role, updatedSize); - updateRequired = true; + const qreal updatedWidth = it.value(); + const qreal currentWidth = m_headerWidget->preferredColumnWidth(role); + if (updatedWidth > currentWidth) { + m_headerWidget->setPreferredColumnWidth(role, updatedWidth); + changed = true; } } - if (!updateRequired) { + if (!changed) { // All the updated sizes are smaller than the current sizes and no change // of the stretched roles-widths is required return; } } - updateStretchedVisibleRolesSizes(); + if (m_headerWidget->automaticColumnResizing()) { + applyAutomaticColumnWidths(); + } } -void KItemListView::updateVisibleRolesSizes() +void KItemListView::updatePreferredColumnWidths() { - if (!m_model) { - return; - } - - const int itemCount = m_model->count(); - if (itemCount > 0) { - updateVisibleRolesSizes(KItemRangeList() << KItemRange(0, itemCount)); + if (m_model) { + updatePreferredColumnWidths(KItemRangeList() << KItemRange(0, m_model->count())); } } -void KItemListView::updateStretchedVisibleRolesSizes() +void KItemListView::applyAutomaticColumnWidths() { - if (!m_itemSize.isEmpty() || m_useHeaderWidths || m_visibleRoles.isEmpty()) { + Q_ASSERT(m_itemSize.isEmpty()); + Q_ASSERT(m_headerWidget->automaticColumnResizing()); + if (m_visibleRoles.isEmpty()) { return; } // Calculate the maximum size of an item by considering the // visible role sizes and apply them to the layouter. If the - // size does not use the available view-size it the size of the + // size does not use the available view-size the size of the // first role will get stretched. - m_stretchedVisibleRolesSizes = m_visibleRolesSizes; - const QByteArray role = m_visibleRoles.first(); - QSizeF firstRoleSize = m_stretchedVisibleRolesSizes.value(role); + foreach (const QByteArray& role, m_visibleRoles) { + const qreal preferredWidth = m_headerWidget->preferredColumnWidth(role); + m_headerWidget->setColumnWidth(role, preferredWidth); + } + + const QByteArray firstRole = m_visibleRoles.first(); + qreal firstColumnWidth = m_headerWidget->columnWidth(firstRole); QSizeF dynamicItemSize = m_itemSize; - if (dynamicItemSize.width() <= 0) { - const qreal requiredWidth = visibleRolesSizesWidthSum(); - const qreal availableWidth = size().width(); - if (requiredWidth < availableWidth) { - // Stretch the first role to use the whole width for the item - firstRoleSize.rwidth() += availableWidth - requiredWidth; - m_stretchedVisibleRolesSizes.insert(role, firstRoleSize); + qreal requiredWidth = columnWidthsSum(); + const qreal availableWidth = size().width(); + if (requiredWidth < availableWidth) { + // Stretch the first column to use the whole remaining width + firstColumnWidth += availableWidth - requiredWidth; + m_headerWidget->setColumnWidth(firstRole, firstColumnWidth); + } else if (requiredWidth > availableWidth && m_visibleRoles.count() > 1) { + // Shrink the first column to be able to show as much other + // columns as possible + qreal shrinkedFirstColumnWidth = firstColumnWidth - requiredWidth + availableWidth; + + // TODO: A proper calculation of the minimum width depends on the implementation + // of KItemListWidget. Probably a kind of minimum size-hint should be introduced + // later. + const qreal minWidth = qMin(firstColumnWidth, qreal(m_styleOption.iconSize * 2 + 200)); + if (shrinkedFirstColumnWidth < minWidth) { + shrinkedFirstColumnWidth = minWidth; } - dynamicItemSize.setWidth(qMax(requiredWidth, availableWidth)); - } - if (dynamicItemSize.height() <= 0) { - const qreal requiredHeight = visibleRolesSizesHeightSum(); - const qreal availableHeight = size().height(); - if (requiredHeight < availableHeight) { - // Stretch the first role to use the whole height for the item - firstRoleSize.rheight() += availableHeight - requiredHeight; - m_stretchedVisibleRolesSizes.insert(role, firstRoleSize); - } - dynamicItemSize.setHeight(qMax(requiredHeight, availableHeight)); + m_headerWidget->setColumnWidth(firstRole, shrinkedFirstColumnWidth); + requiredWidth -= firstColumnWidth - shrinkedFirstColumnWidth; } - m_layouter->setItemSize(dynamicItemSize); + dynamicItemSize.rwidth() = qMax(requiredWidth, availableWidth); - if (m_header) { - m_header->setVisibleRolesWidths(headerRolesWidths()); - m_header->resize(dynamicItemSize.width(), m_header->size().height()); - } + m_layouter->setItemSize(dynamicItemSize); // Update the role sizes for all visible widgets QHashIterator it(m_visibleItems); while (it.hasNext()) { it.next(); - it.value()->setVisibleRolesSizes(m_stretchedVisibleRolesSizes); + updateWidgetColumnWidths(it.value()); } } -qreal KItemListView::visibleRolesSizesWidthSum() const +qreal KItemListView::columnWidthsSum() const { - qreal widthSum = 0; - QHashIterator it(m_visibleRolesSizes); - while (it.hasNext()) { - it.next(); - widthSum += it.value().width(); + qreal widthsSum = 0; + foreach (const QByteArray& role, m_visibleRoles) { + widthsSum += m_headerWidget->columnWidth(role); } - return widthSum; -} - -qreal KItemListView::visibleRolesSizesHeightSum() const -{ - qreal heightSum = 0; - QHashIterator it(m_visibleRolesSizes); - while (it.hasNext()) { - it.next(); - heightSum += it.value().height(); - } - return heightSum; + return widthsSum; } QRectF KItemListView::headerBoundaries() const { - return m_header ? m_header->geometry() : QRectF(); + return m_headerWidget->isVisible() ? m_headerWidget->geometry() : QRectF(); } bool KItemListView::changesItemGridLayout(const QSizeF& newGridSize, @@ -2104,6 +2412,12 @@ bool KItemListView::changesItemGridLayout(const QSizeF& newGridSize, bool KItemListView::animateChangedItemCount(int changedItemCount) const { + if (m_itemSize.isEmpty()) { + // We have only columns or only rows, but no grid: An animation is usually + // welcome when inserting or removing items. + return !supportsItemExpanding(); + } + if (m_layouter->size().isEmpty() || m_layouter->itemSize().isEmpty()) { return false; } @@ -2128,6 +2442,53 @@ bool KItemListView::scrollBarRequired(const QSizeF& size) const : maxOffset > size.width(); } +int KItemListView::showDropIndicator(const QPointF& pos) +{ + QHashIterator it(m_visibleItems); + while (it.hasNext()) { + it.next(); + const KItemListWidget* widget = it.value(); + + const QPointF mappedPos = widget->mapFromItem(this, pos); + const QRectF rect = itemRect(widget->index()); + if (mappedPos.y() >= 0 && mappedPos.y() <= rect.height()) { + if (m_model->supportsDropping(widget->index())) { + // Keep 30% of the rectangle as the gap instead of always having a fixed gap + const int gap = qMax(qreal(4.0), qreal(0.3) * rect.height()); + if (mappedPos.y() >= gap && mappedPos.y() <= rect.height() - gap) { + return -1; + } + } + + const bool isAboveItem = (mappedPos.y () < rect.height() / 2); + const qreal y = isAboveItem ? rect.top() : rect.bottom(); + + const QRectF draggingInsertIndicator(rect.left(), y, rect.width(), 1); + if (m_dropIndicator != draggingInsertIndicator) { + m_dropIndicator = draggingInsertIndicator; + update(); + } + + int index = widget->index(); + if (!isAboveItem) { + ++index; + } + return index; + } + } + + const QRectF firstItemRect = itemRect(firstVisibleIndex()); + return (pos.y() <= firstItemRect.top()) ? 0 : -1; +} + +void KItemListView::hideDropIndicator() +{ + if (!m_dropIndicator.isNull()) { + m_dropIndicator = QRectF(); + update(); + } +} + void KItemListView::updateGroupHeaderHeight() { qreal groupHeaderHeight = m_styleOption.fontMetrics.height(); @@ -2279,6 +2640,18 @@ bool KItemListView::hasSiblingSuccessor(int index) const return hasSuccessor; } +void KItemListView::disconnectRoleEditingSignals(int index) +{ + KStandardItemListWidget* widget = qobject_cast(m_visibleItems.value(index)); + if (!widget) { + return; + } + + disconnect(widget, &KItemListWidget::roleEditingCanceled, this, nullptr); + disconnect(widget, &KItemListWidget::roleEditingFinished, this, nullptr); + disconnect(this, &KItemListView::scrollOffsetChanged, widget, nullptr); +} + int KItemListView::calculateAutoScrollingIncrement(int pos, int range, int oldInc) { int inc = 0; @@ -2370,4 +2743,3 @@ void KItemListGroupHeaderCreatorBase::recycle(KItemListGroupHeader* header) pushRecycleableWidget(header); } -#include "kitemlistview.moc"