#include "kitemlistview.h"
#include "kitemlistcontroller.h"
-#include "kitemlistgroupheader.h"
#include "kitemlistheader_p.h"
#include "kitemlistrubberband_p.h"
#include "kitemlistselectionmanager.h"
m_model(0),
m_visibleRoles(),
m_visibleRolesSizes(),
+ m_stretchedVisibleRolesSizes(),
m_widgetCreator(0),
m_groupHeaderCreator(0),
m_styleOption(),
m_layouter(0),
m_animation(0),
m_layoutTimer(0),
- m_oldOffset(0),
- m_oldMaximumOffset(0),
+ m_oldScrollOffset(0),
+ m_oldMaximumScrollOffset(0),
+ m_oldItemOffset(0),
+ m_oldMaximumItemOffset(0),
m_skipAutoScrollForRubberBand(false),
m_rubberBand(0),
m_mousePos(),
m_animation->setScrollOrientation(orientation);
m_sizeHintResolver->clearCache();
updateLayout();
+
onScrollOrientationChanged(orientation, previousOrientation);
+ emit scrollOrientationChanged(orientation, previousOrientation);
}
Qt::Orientation KItemListView::scrollOrientation() const
m_itemSize = itemSize;
- if (!markVisibleRolesSizesAsDirty()) {
+ const bool emptySize = itemSize.isEmpty();
+ if (emptySize) {
+ updateVisibleRolesSizes();
+ } else {
if (itemSize.width() < previousSize.width() || itemSize.height() < previousSize.height()) {
prepareLayoutForIncreasedItemCount(itemSize, ItemSize);
} else {
return m_itemSize;
}
-void KItemListView::setOffset(qreal offset)
+void KItemListView::setScrollOffset(qreal offset)
{
if (offset < 0) {
offset = 0;
}
- const qreal previousOffset = m_layouter->offset();
+ const qreal previousOffset = m_layouter->scrollOffset();
if (offset == previousOffset) {
return;
}
- m_layouter->setOffset(offset);
- m_animation->setOffset(offset);
+ m_layouter->setScrollOffset(offset);
+ m_animation->setScrollOffset(offset);
+ if (!m_layoutTimer->isActive()) {
+ doLayout(NoAnimation, 0, 0);
+ update();
+ }
+ onScrollOffsetChanged(offset, previousOffset);
+}
+
+qreal KItemListView::scrollOffset() const
+{
+ return m_layouter->scrollOffset();
+}
+
+qreal KItemListView::maximumScrollOffset() const
+{
+ return m_layouter->maximumScrollOffset();
+}
+
+void KItemListView::setItemOffset(qreal offset)
+{
+ m_layouter->setItemOffset(offset);
+ if (m_header) {
+ m_header->setPos(-offset, 0);
+ }
if (!m_layoutTimer->isActive()) {
doLayout(NoAnimation, 0, 0);
update();
}
- onOffsetChanged(offset, previousOffset);
}
-qreal KItemListView::offset() const
+qreal KItemListView::itemOffset() const
{
- return m_layouter->offset();
+ return m_layouter->itemOffset();
}
-qreal KItemListView::maximumOffset() const
+qreal KItemListView::maximumItemOffset() const
{
- return m_layouter->maximumOffset();
+ return m_layouter->maximumItemOffset();
}
void KItemListView::setVisibleRoles(const QList<QByteArray>& roles)
it.next();
KItemListWidget* widget = it.value();
widget->setVisibleRoles(roles);
- widget->setVisibleRolesSizes(m_visibleRolesSizes);
+ widget->setVisibleRolesSizes(m_stretchedVisibleRolesSizes);
}
m_sizeHintResolver->clearCache();
m_layouter->markAsDirty();
- onVisibleRolesChanged(roles, previousRoles);
-
- markVisibleRolesSizesAsDirty();
- updateLayout();
if (m_header) {
m_header->setVisibleRoles(roles);
m_header->setVisibleRolesWidths(headerRolesWidths());
+ m_useHeaderWidths = false;
}
+
+ updateVisibleRolesSizes();
+ updateLayout();
+
+ onVisibleRolesChanged(roles, previousRoles);
}
QList<QByteArray> KItemListView::visibleRoles() const
return m_autoScrollTimer != 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);
-
- m_useHeaderWidths = false;
- updateHeaderWidth();
-
- connect(m_header, SIGNAL(visibleRoleWidthChanged(QByteArray,qreal,qreal)),
- this, SLOT(slotVisibleRoleWidthChanged(QByteArray,qreal,qreal)));
-
- 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);
- }
-}
-
-bool KItemListView::isHeaderShown() const
-{
- return m_header != 0;
-}
-
KItemListController* KItemListView::controller() const
{
return m_controller;
void KItemListView::setGeometry(const QRectF& rect)
{
QGraphicsWidget::setGeometry(rect);
+
if (!m_model) {
return;
}
- if (m_itemSize.isEmpty()) {
- m_layouter->setItemSize(QSizeF());
- }
-
if (m_model->count() > 0) {
prepareLayoutForIncreasedItemCount(rect.size(), LayouterSize);
} else {
if (!m_layoutTimer->isActive()) {
m_layoutTimer->start();
}
+
+ // 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();
}
int KItemListView::itemAt(const QPointF& pos) const
return itemSize();
}
-QHash<QByteArray, QSizeF> KItemListView::visibleRoleSizes() const
+QHash<QByteArray, QSizeF> KItemListView::visibleRolesSizes(const KItemRangeList& itemRanges) const
{
+ Q_UNUSED(itemRanges);
return QHash<QByteArray, QSizeF>();
}
-QRectF KItemListView::itemBoundingRect(int index) const
+QRectF KItemListView::itemRect(int index) const
{
- return m_layouter->itemBoundingRect(index);
+ return m_layouter->itemRect(index);
}
int KItemListView::itemsPerOffset() 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);
+
+ m_useHeaderWidths = false;
+
+ connect(m_header, SIGNAL(visibleRoleWidthChanged(QByteArray,qreal,qreal)),
+ this, SLOT(slotVisibleRoleWidthChanged(QByteArray,qreal,qreal)));
+
+ 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);
+ }
+}
+
+bool KItemListView::isHeaderShown() const
+{
+ return m_header != 0;
+}
+
QPixmap KItemListView::createDragPixmap(const QSet<int>& indexes) const
{
Q_UNUSED(indexes);
const QPointF topLeft = rubberBandRect.topLeft();
if (scrollOrientation() == Qt::Vertical) {
- rubberBandRect.moveTo(topLeft.x(), topLeft.y() - offset());
+ rubberBandRect.moveTo(topLeft.x(), topLeft.y() - scrollOffset());
} else {
- rubberBandRect.moveTo(topLeft.x() - offset(), topLeft.y());
+ rubberBandRect.moveTo(topLeft.x() - scrollOffset(), topLeft.y());
}
QStyleOptionRubberBand opt;
Q_UNUSED(item);
}
+bool KItemListView::itemSizeHintUpdateRequired(const QSet<QByteArray>& changedRoles) const
+{
+ Q_UNUSED(changedRoles);
+ return true;
+}
+
void KItemListView::onControllerChanged(KItemListController* current, KItemListController* previous)
{
Q_UNUSED(current);
Q_UNUSED(previous);
}
-void KItemListView::onOffsetChanged(qreal current, qreal previous)
+void KItemListView::onScrollOffsetChanged(qreal current, qreal previous)
{
Q_UNUSED(current);
Q_UNUSED(previous);
void KItemListView::resizeEvent(QGraphicsSceneResizeEvent* event)
{
QGraphicsWidget::resizeEvent(event);
- updateHeaderWidth();
+ if (m_itemSize.isEmpty() && m_useHeaderWidths) {
+ QSizeF dynamicItemSize = m_layouter->itemSize();
+ const QSizeF newSize = event->newSize();
+
+ 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_layouter->setItemSize(dynamicItemSize);
+ }
}
void KItemListView::slotItemsInserted(const KItemRangeList& itemRanges)
{
- if (!m_useHeaderWidths) {
- markVisibleRolesSizesAsDirty();
- }
+ updateVisibleRolesSizes(itemRanges);
const bool hasMultipleRanges = (itemRanges.count() > 1);
if (hasMultipleRanges) {
}
m_layouter->markAsDirty();
- if (m_model->count() == count && maximumOffset() > size().height()) {
+ if (m_model->count() == count && maximumScrollOffset() > size().height()) {
kDebug() << "Scrollbar required, skipping layout";
const int scrollBarExtent = style()->pixelMetric(QStyle::PM_ScrollBarExtent);
QSizeF layouterSize = m_layouter->size();
void KItemListView::slotItemsRemoved(const KItemRangeList& itemRanges)
{
- if (!m_useHeaderWidths) {
- markVisibleRolesSizesAsDirty();
- }
+ updateVisibleRolesSizes();
const bool hasMultipleRanges = (itemRanges.count() > 1);
if (hasMultipleRanges) {
}
}
+void KItemListView::slotItemsMoved(const KItemRange& itemRange, const QList<int>& movedToIndexes)
+{
+ const int firstVisibleMovedIndex = qMax(firstVisibleIndex(), itemRange.index);
+ const int lastVisibleMovedIndex = qMin(lastVisibleIndex(), itemRange.index + itemRange.count - 1);
+
+ for (int index = firstVisibleMovedIndex; index <= lastVisibleMovedIndex; ++index) {
+ KItemListWidget* widget = m_visibleItems.value(index);
+ if (widget) {
+ updateWidgetProperties(widget, index);
+ }
+ }
+
+ if (m_controller) {
+ m_controller->selectionManager()->itemsMoved(itemRange, movedToIndexes);
+ }
+}
+
void KItemListView::slotItemsChanged(const KItemRangeList& itemRanges,
const QSet<QByteArray>& roles)
{
+ const bool updateSizeHints = itemSizeHintUpdateRequired(roles);
+ if (updateSizeHints) {
+ updateVisibleRolesSizes(itemRanges);
+ }
+
foreach (const KItemRange& itemRange, itemRanges) {
const int index = itemRange.index;
const int count = itemRange.count;
- m_sizeHintResolver->itemsChanged(index, count, roles);
+ if (updateSizeHints) {
+ m_sizeHintResolver->itemsChanged(index, count, roles);
+ m_layouter->markAsDirty();
+ if (!m_layoutTimer->isActive()) {
+ m_layoutTimer->start();
+ }
+ }
+ // Apply the changed roles to the visible item-widgets
const int lastIndex = index + count - 1;
for (int i = index; i <= lastIndex; ++i) {
KItemListWidget* widget = m_visibleItems.value(i);
widget->setData(m_model->data(i), roles);
}
}
+
}
}
+void KItemListView::slotGroupedSortingChanged(bool current)
+{
+ m_grouped = current;
+ if (m_grouped) {
+ // Apply the height of the header to the layouter
+ const qreal groupHeaderHeight = m_styleOption.fontMetrics.height() +
+ m_styleOption.margin * 2;
+ m_layouter->setGroupHeaderHeight(groupHeaderHeight);
+
+ // Assure that headers from already visible items get created
+ QHashIterator<int, KItemListWidget*> it(m_visibleItems);
+ while (it.hasNext()) {
+ it.next();
+ KItemListWidget* widget = it.value();
+ updateGroupHeaderForWidget(widget);
+ }
+ } else {
+ // Clear all visible headers
+ QMutableHashIterator<KItemListWidget*, KItemListGroupHeader*> it (m_visibleGroups);
+ while (it.hasNext()) {
+ it.next();
+ recycleGroupHeaderForWidget(it.key());
+ }
+ Q_ASSERT(m_visibleGroups.isEmpty());
+ }
+
+ m_layouter->markAsDirty();
+ updateLayout();
+}
+
void KItemListView::slotCurrentChanged(int current, int previous)
{
Q_UNUSED(previous);
}
const QRectF viewGeometry = geometry();
- const QRectF currentBoundingRect = itemBoundingRect(current);
+ const QRectF currentRect = itemRect(current);
- if (!viewGeometry.contains(currentBoundingRect)) {
+ if (!viewGeometry.contains(currentRect)) {
// Make sure that the new current item is fully visible in the view.
- qreal newOffset = offset();
- if (currentBoundingRect.top() < viewGeometry.top()) {
+ qreal newOffset = scrollOffset();
+ if (currentRect.top() < viewGeometry.top()) {
Q_ASSERT(scrollOrientation() == Qt::Vertical);
- newOffset += currentBoundingRect.top() - viewGeometry.top();
- } else if ((currentBoundingRect.bottom() > viewGeometry.bottom())) {
+ newOffset += currentRect.top() - viewGeometry.top();
+ } else if ((currentRect.bottom() > viewGeometry.bottom())) {
Q_ASSERT(scrollOrientation() == Qt::Vertical);
- newOffset += currentBoundingRect.bottom() - viewGeometry.bottom();
- } else if (currentBoundingRect.left() < viewGeometry.left()) {
+ newOffset += currentRect.bottom() - viewGeometry.bottom();
+ } else if (currentRect.left() < viewGeometry.left()) {
if (scrollOrientation() == Qt::Horizontal) {
- newOffset += currentBoundingRect.left() - viewGeometry.left();
+ newOffset += currentRect.left() - viewGeometry.left();
}
- } else if ((currentBoundingRect.right() > viewGeometry.right())) {
+ } else if ((currentRect.right() > viewGeometry.right())) {
if (scrollOrientation() == Qt::Horizontal) {
- newOffset += currentBoundingRect.right() - viewGeometry.right();
+ newOffset += currentRect.right() - viewGeometry.right();
}
}
- if (newOffset != offset()) {
+ if (newOffset != scrollOffset()) {
emit scrollTo(newOffset);
}
}
// All KItemListWidgets that are animated by the DeleteAnimation are not maintained
// by m_visibleWidgets and must be deleted manually after the animation has
// been finished.
- KItemListGroupHeader* header = m_visibleGroups.value(itemListWidget);
- if (header) {
- m_groupHeaderCreator->recycle(header);
- m_visibleGroups.remove(itemListWidget);
- }
+ recycleGroupHeaderForWidget(itemListWidget);
m_widgetCreator->recycle(itemListWidget);
break;
}
qreal previousWidth)
{
Q_UNUSED(previousWidth);
- Q_ASSERT(m_header);
m_useHeaderWidths = true;
QSizeF roleSize = m_visibleRolesSizes.value(role);
roleSize.setWidth(currentWidth);
m_visibleRolesSizes.insert(role, roleSize);
- }
+ m_stretchedVisibleRolesSizes.insert(role, roleSize);
- m_layouter->setItemSize(QSizeF()); // Forces an update in applyDynamicItemSize()
- updateLayout();
+ // 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
+ foreach (KItemListWidget* widget, visibleItemListWidgets()) {
+ widget->setVisibleRolesSizes(m_stretchedVisibleRolesSizes);
+ }
+
+ updateLayout();
+ }
}
void KItemListView::triggerAutoScrolling()
// the autoscrolling may not get skipped anymore until a new rubberband is created
m_skipAutoScrollForRubberBand = false;
- setOffset(offset() + m_autoScrollIncrement);
+ setScrollOffset(scrollOffset() + m_autoScrollIncrement);
// Trigger the autoscroll timer which will periodically call
// triggerAutoScrolling()
this, SLOT(slotItemsInserted(KItemRangeList)));
disconnect(m_model, SIGNAL(itemsRemoved(KItemRangeList)),
this, SLOT(slotItemsRemoved(KItemRangeList)));
+ disconnect(m_model, SIGNAL(itemsMoved(KItemRange,QList<int>)),
+ this, SLOT(slotItemsMoved(KItemRange,QList<int>)));
+ disconnect(m_model, SIGNAL(groupedSortingChanged(bool)),
+ this, SLOT(slotGroupedSortingChanged(bool)));
}
m_model = model;
m_layouter->setModel(model);
- m_grouped = !model->groupRole().isEmpty();
+ m_grouped = model->groupedSorting();
if (m_model) {
connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
this, SLOT(slotItemsInserted(KItemRangeList)));
connect(m_model, SIGNAL(itemsRemoved(KItemRangeList)),
this, SLOT(slotItemsRemoved(KItemRangeList)));
+ connect(m_model, SIGNAL(itemsMoved(KItemRange,QList<int>)),
+ this, SLOT(slotItemsMoved(KItemRange,QList<int>)));
+ connect(m_model, SIGNAL(groupedSortingChanged(bool)),
+ this, SLOT(slotGroupedSortingChanged(bool)));
}
onModelChanged(model, previous);
return;
}
- applyDynamicItemSize();
-
const int firstVisibleIndex = m_layouter->firstVisibleIndex();
const int lastVisibleIndex = m_layouter->lastVisibleIndex();
if (firstVisibleIndex < 0) {
return;
}
- // Do a sanity check of the offset-property: When properties of the itemlist-view have been changed
+ // Do a sanity check of the scroll-offset property: When properties of the itemlist-view have been changed
// it might be possible that the maximum offset got changed too. Assure that the full visible range
// is still shown if the maximum offset got decreased.
const qreal visibleOffsetRange = (scrollOrientation() == Qt::Horizontal) ? size().width() : size().height();
- const qreal maxOffsetToShowFullRange = maximumOffset() - visibleOffsetRange;
- if (offset() > maxOffsetToShowFullRange) {
- m_layouter->setOffset(qMax(qreal(0), maxOffsetToShowFullRange));
+ const qreal maxOffsetToShowFullRange = maximumScrollOffset() - visibleOffsetRange;
+ if (scrollOffset() > maxOffsetToShowFullRange) {
+ m_layouter->setScrollOffset(qMax(qreal(0), maxOffsetToShowFullRange));
}
// Determine all items that are completely invisible and might be
if (invisible && !m_animation->isStarted(widget)) {
widget->setVisible(false);
reusableItems.append(index);
+
+ if (m_grouped) {
+ recycleGroupHeaderForWidget(widget);
+ }
}
}
bool applyNewPos = true;
bool wasHidden = false;
- const QRectF itemBounds = m_layouter->itemBoundingRect(i);
+ const QRectF itemBounds = m_layouter->itemRect(i);
const QPointF newPos = itemBounds.topLeft();
KItemListWidget* widget = m_visibleItems.value(i);
if (!widget) {
const int oldIndex = reusableItems.takeLast();
widget = m_visibleItems.value(oldIndex);
setWidgetIndex(widget, i);
+
+ if (m_grouped) {
+ updateGroupHeaderForWidget(widget);
+ }
} else {
// No reusable KItemListWidget instance is available, create a new one
widget = createWidget(i);
if (animate && changedCount < 0) {
// Items have been deleted, move the created item to the
// imaginary old position.
- const QRectF itemBoundingRect = m_layouter->itemBoundingRect(i - changedCount);
- if (itemBoundingRect.isEmpty()) {
+ 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(itemBoundingRect.topLeft());
+ widget->setPos(itemRect.topLeft());
}
applyNewPos = false;
}
recycleWidget(m_visibleItems.value(index));
}
+ if (m_grouped) {
+ // Update the layout of all visible group headers
+ QHashIterator<KItemListWidget*, KItemListGroupHeader*> it(m_visibleGroups);
+ while (it.hasNext()) {
+ it.next();
+ updateGroupHeaderLayout(it.key());
+ }
+ }
+
emitOffsetChanges();
}
void KItemListView::emitOffsetChanges()
{
- const qreal newOffset = m_layouter->offset();
- if (m_oldOffset != newOffset) {
- emit offsetChanged(newOffset, m_oldOffset);
- m_oldOffset = newOffset;
+ const qreal newScrollOffset = m_layouter->scrollOffset();
+ if (m_oldScrollOffset != newScrollOffset) {
+ emit scrollOffsetChanged(newScrollOffset, m_oldScrollOffset);
+ m_oldScrollOffset = newScrollOffset;
}
- const qreal newMaximumOffset = m_layouter->maximumOffset();
- if (m_oldMaximumOffset != newMaximumOffset) {
- emit maximumOffsetChanged(newMaximumOffset, m_oldMaximumOffset);
- m_oldMaximumOffset = newMaximumOffset;
+ const qreal newMaximumScrollOffset = m_layouter->maximumScrollOffset();
+ if (m_oldMaximumScrollOffset != newMaximumScrollOffset) {
+ emit maximumScrollOffsetChanged(newMaximumScrollOffset, m_oldMaximumScrollOffset);
+ m_oldMaximumScrollOffset = newMaximumScrollOffset;
+ }
+
+ const qreal newItemOffset = m_layouter->itemOffset();
+ if (m_oldItemOffset != newItemOffset) {
+ emit itemOffsetChanged(newItemOffset, m_oldItemOffset);
+ m_oldItemOffset = newItemOffset;
+ }
+
+ const qreal newMaximumItemOffset = m_layouter->maximumItemOffset();
+ if (m_oldMaximumItemOffset != newMaximumItemOffset) {
+ emit maximumItemOffsetChanged(newMaximumItemOffset, m_oldMaximumItemOffset);
+ m_oldMaximumItemOffset = newMaximumItemOffset;
}
}
KItemListWidget* KItemListView::createWidget(int index)
{
KItemListWidget* widget = m_widgetCreator->create(this);
+ widget->setFlag(QGraphicsItem::ItemStacksBehindParent);
+
updateWidgetProperties(widget, index);
m_visibleItems.insert(index, widget);
if (m_grouped) {
- if (m_layouter->isFirstGroupItem(index)) {
- KItemListGroupHeader* header = m_groupHeaderCreator->create(widget);
- header->setPos(0, -50);
- header->resize(50, 50);
- m_visibleGroups.insert(widget, header);
- }
+ updateGroupHeaderForWidget(widget);
}
initializeItemListWidget(widget);
void KItemListView::recycleWidget(KItemListWidget* widget)
{
if (m_grouped) {
- KItemListGroupHeader* header = m_visibleGroups.value(widget);
- if (header) {
- m_groupHeaderCreator->recycle(header);
- m_visibleGroups.remove(widget);
- }
+ recycleGroupHeaderForWidget(widget);
}
m_visibleItems.remove(widget->index());
void KItemListView::setWidgetIndex(KItemListWidget* widget, int index)
{
- if (m_grouped) {
- bool createHeader = m_layouter->isFirstGroupItem(index);
- KItemListGroupHeader* header = m_visibleGroups.value(widget);
- if (header) {
- if (createHeader) {
- createHeader = false;
- } else {
- m_groupHeaderCreator->recycle(header);
- m_visibleGroups.remove(widget);
- }
- }
-
- if (createHeader) {
- KItemListGroupHeader* header = m_groupHeaderCreator->create(widget);
- header->setPos(0, -50);
- header->resize(50, 50);
- m_visibleGroups.insert(widget, header);
- }
- }
-
const int oldIndex = widget->index();
m_visibleItems.remove(oldIndex);
updateWidgetProperties(widget, index);
for (int i = minFirst; i <= maxLast; ++i) {
if (!m_visibleItems.contains(i)) {
KItemListWidget* widget = createWidget(i);
- const QPointF pos = m_layouter->itemBoundingRect(i).topLeft();
+ const QPointF pos = m_layouter->itemRect(i).topLeft();
widget->setPos(pos);
}
}
}
}
-bool KItemListView::markVisibleRolesSizesAsDirty()
+void KItemListView::updateWidgetProperties(KItemListWidget* widget, int index)
{
- const bool dirty = m_itemSize.isEmpty();
- if (dirty) {
- m_visibleRolesSizes.clear();
- m_layouter->setItemSize(QSizeF());
- m_useHeaderWidths = false;
- }
- return dirty;
+ widget->setVisibleRoles(m_visibleRoles);
+ widget->setVisibleRolesSizes(m_stretchedVisibleRolesSizes);
+ widget->setStyleOption(m_styleOption);
+
+ const KItemListSelectionManager* selectionManager = m_controller->selectionManager();
+ widget->setCurrent(index == selectionManager->currentItem());
+ widget->setSelected(selectionManager->isSelected(index));
+ widget->setHovered(false);
+ widget->setAlternatingBackgroundColors(false);
+ widget->setIndex(index);
+ widget->setData(m_model->data(index));
}
-void KItemListView::applyDynamicItemSize()
+void KItemListView::updateGroupHeaderForWidget(KItemListWidget* widget)
{
- if (!m_itemSize.isEmpty()) {
+ const int index = widget->index();
+ if (!m_layouter->isFirstGroupItem(index)) {
+ // The widget does not represent the first item of a group
+ // and hence requires no header
+ recycleGroupHeaderForWidget(widget);
return;
}
- if (m_visibleRolesSizes.isEmpty()) {
- m_visibleRolesSizes = visibleRoleSizes();
- if (m_header) {
- m_header->setVisibleRolesWidths(headerRolesWidths());
+ KItemListGroupHeader* header = m_visibleGroups.value(widget);
+ if (!header) {
+ header = m_groupHeaderCreator->create(this);
+ header->setParentItem(widget);
+ m_visibleGroups.insert(widget, header);
+ }
+ Q_ASSERT(header->parentItem() == widget);
+
+ // Determine the shown data for the header by doing a binary
+ // search in the groups-list
+ const QList<QPair<int, QVariant> > groups = model()->groups();
+ int min = 0;
+ int max = groups.count() - 1;
+ int mid = 0;
+ do {
+ mid = (min + max) / 2;
+ if (index > groups.at(mid).first) {
+ min = mid + 1;
+ } else {
+ max = mid - 1;
}
+ } while (groups.at(mid).first != index && min <= max);
+
+ header->setData(groups.at(mid).second);
+ header->setRole(model()->sortRole());
+ header->setStyleOption(m_styleOption);
+ header->setScrollOrientation(scrollOrientation());
+
+ header->show();
+}
+
+void KItemListView::updateGroupHeaderLayout(KItemListWidget* widget)
+{
+ KItemListGroupHeader* header = m_visibleGroups.value(widget);
+ Q_ASSERT(header);
+
+ const int index = widget->index();
+ const QRectF groupHeaderRect = m_layouter->groupHeaderRect(index);
+ const QRectF itemRect = m_layouter->itemRect(index);
+
+ // The group-header is a child of the itemlist widget. Translate the
+ // group header position to the relative position.
+ const QPointF groupHeaderPos(groupHeaderRect.x() - itemRect.x(),
+ - groupHeaderRect.height());
+ header->setPos(groupHeaderPos);
+ header->resize(groupHeaderRect.size());
+}
+
+void KItemListView::recycleGroupHeaderForWidget(KItemListWidget* widget)
+{
+ KItemListGroupHeader* header = m_visibleGroups.value(widget);
+ if (header) {
+ header->setParentItem(0);
+ m_groupHeaderCreator->recycle(header);
+ m_visibleGroups.remove(widget);
}
+}
- if (m_layouter->itemSize().isEmpty()) {
- // Calculate the maximum size of an item by considering the
- // visible role sizes and apply them to the layouter.
- qreal requiredWidth = 0;
- qreal requiredHeight = 0;
+QHash<QByteArray, qreal> KItemListView::headerRolesWidths() const
+{
+ QHash<QByteArray, qreal> rolesWidths;
+
+ QHashIterator<QByteArray, QSizeF> it(m_stretchedVisibleRolesSizes);
+ while (it.hasNext()) {
+ it.next();
+ rolesWidths.insert(it.key(), it.value().width());
+ }
+
+ return rolesWidths;
+}
- QHashIterator<QByteArray, QSizeF> it(m_visibleRolesSizes);
+void KItemListView::updateVisibleRolesSizes(const KItemRangeList& itemRanges)
+{
+ if (!m_itemSize.isEmpty() || m_useHeaderWidths) {
+ return;
+ }
+
+ const int itemCount = m_model->count();
+ int rangesItemCount = 0;
+ foreach (const KItemRange& range, itemRanges) {
+ rangesItemCount += range.count;
+ }
+
+ 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<QByteArray, QSizeF> 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);
+ }
+ }
+ }
+ } 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
+ // expensive update might be required.
+ bool updateRequired = false;
+
+ const QHash<QByteArray, QSizeF> updatedSizes = visibleRolesSizes(itemRanges);
+ QHashIterator<QByteArray, QSizeF> it(updatedSizes);
while (it.hasNext()) {
it.next();
- const QSizeF& visibleRoleSize = it.value();
- requiredWidth += visibleRoleSize.width();
- requiredHeight += visibleRoleSize.height();
+ 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;
+ }
}
- QSizeF dynamicItemSize = m_itemSize;
- if (dynamicItemSize.width() <= 0) {
- dynamicItemSize.setWidth(qMax(requiredWidth, size().width()));
- }
- if (dynamicItemSize.height() <= 0) {
- dynamicItemSize.setHeight(qMax(requiredHeight, size().height()));
+ if (!updateRequired) {
+ // All the updated sizes are smaller than the current sizes and no change
+ // of the stretched roles-widths is required
+ return;
}
+ }
- m_layouter->setItemSize(dynamicItemSize);
+ updateStretchedVisibleRolesSizes();
+}
- // Update the role sizes for all visible widgets
- foreach (KItemListWidget* widget, visibleItemListWidgets()) {
- widget->setVisibleRolesSizes(m_visibleRolesSizes);
- }
+void KItemListView::updateVisibleRolesSizes()
+{
+ const int itemCount = m_model->count();
+ if (itemCount > 0) {
+ updateVisibleRolesSizes(KItemRangeList() << KItemRange(0, itemCount));
}
}
-void KItemListView::updateWidgetProperties(KItemListWidget* widget, int index)
+void KItemListView::updateStretchedVisibleRolesSizes()
{
- widget->setVisibleRoles(m_visibleRoles);
- widget->setVisibleRolesSizes(m_visibleRolesSizes);
- widget->setStyleOption(m_styleOption);
+ if (!m_itemSize.isEmpty() || m_useHeaderWidths) {
+ return;
+ }
- const KItemListSelectionManager* selectionManager = m_controller->selectionManager();
- widget->setCurrent(index == selectionManager->currentItem());
+ // 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
+ // first role will get stretched.
+ m_stretchedVisibleRolesSizes = m_visibleRolesSizes;
+ const QByteArray role = visibleRoles().first();
+ QSizeF firstRoleSize = m_stretchedVisibleRolesSizes.value(role);
- if (selectionManager->hasSelection()) {
- const QSet<int> selectedItems = selectionManager->selectedItems();
- widget->setSelected(selectedItems.contains(index));
- } else {
- widget->setSelected(false);
+ 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);
+ }
+ dynamicItemSize.setWidth(qMax(requiredWidth, availableWidth));
}
- widget->setHovered(false);
+ 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));
+ }
- widget->setIndex(index);
- widget->setData(m_model->data(index));
-}
+ m_layouter->setItemSize(dynamicItemSize);
-void KItemListView::updateHeaderWidth()
-{
- if (!m_header) {
- return;
+ if (m_header) {
+ m_header->setVisibleRolesWidths(headerRolesWidths());
+ m_header->resize(dynamicItemSize.width(), m_header->size().height());
}
- // TODO 1: Use the required width of all roles
- m_header->resize(size().width(), m_header->size().height());
+ // Update the role sizes for all visible widgets
+ foreach (KItemListWidget* widget, visibleItemListWidgets()) {
+ widget->setVisibleRolesSizes(m_stretchedVisibleRolesSizes);
+ }
}
-QHash<QByteArray, qreal> KItemListView::headerRolesWidths() const
+qreal KItemListView::visibleRolesSizesWidthSum() const
{
- QHash<QByteArray, qreal> rolesWidths;
+ qreal widthSum = 0;
+ QHashIterator<QByteArray, QSizeF> it(m_visibleRolesSizes);
+ while (it.hasNext()) {
+ it.next();
+ widthSum += it.value().width();
+ }
+ return widthSum;
+}
+qreal KItemListView::visibleRolesSizesHeightSum() const
+{
+ qreal heightSum = 0;
QHashIterator<QByteArray, QSizeF> it(m_visibleRolesSizes);
while (it.hasNext()) {
it.next();
- rolesWidths.insert(it.key(), it.value().width());
+ heightSum += it.value().height();
}
+ return heightSum;
+}
- return rolesWidths;
+QRectF KItemListView::headerBoundaries() const
+{
+ return m_header ? m_header->geometry() : QRectF();
}
int KItemListView::calculateAutoScrollingIncrement(int pos, int range, int oldInc)
}
+
KItemListCreatorBase::~KItemListCreatorBase()
{
qDeleteAll(m_recycleableWidgets);
void KItemListWidgetCreatorBase::recycle(KItemListWidget* widget)
{
+ widget->setParentItem(0);
widget->setOpacity(1.0);
pushRecycleableWidget(widget);
}
projects / dolphin.git / blobdiff