KItemListController::KItemListController(QObject* parent) :
QObject(parent),
+ m_singleClickActivation(KGlobalSettings::singleClick()),
m_selectionTogglePressed(false),
m_selectionBehavior(NoSelection),
m_model(0),
m_pressedIndex(-1),
m_pressedMousePos(),
m_autoActivationTimer(0),
- m_oldSelection()
+ m_oldSelection(),
+ m_keyboardAnchorIndex(-1),
+ m_keyboardAnchorPos(0)
{
connect(m_keyboardManager, SIGNAL(changeCurrentItem(QString,bool)),
this, SLOT(slotChangeCurrentItem(QString,bool)));
return m_autoActivationTimer->interval();
}
+void KItemListController::setSingleClickActivation(bool singleClick)
+{
+ m_singleClickActivation = singleClick;
+}
+
+bool KItemListController::singleClickActivation() const
+{
+ return m_singleClickActivation;
+}
+
bool KItemListController::showEvent(QShowEvent* event)
{
Q_UNUSED(event);
const bool shiftOrControlPressed = shiftPressed || controlPressed;
const int itemCount = m_model->count();
- const int itemsPerRow = m_view->itemsPerOffset();
// For horizontal scroll orientation, transform
// the arrow keys to simplify the event handling.
case Qt::Key_Left:
if (index > 0) {
- index--;
+ --index;
+ m_keyboardAnchorIndex = index;
+ m_keyboardAnchorPos = keyboardAnchorPos(index);
}
break;
case Qt::Key_Right:
if (index < itemCount - 1) {
- index++;
+ ++index;
+ m_keyboardAnchorIndex = index;
+ m_keyboardAnchorPos = keyboardAnchorPos(index);
}
break;
case Qt::Key_Up:
- if (index >= itemsPerRow) {
- index -= itemsPerRow;
- }
+ updateKeyboardAnchor();
+ index = previousRowIndex();
break;
case Qt::Key_Down:
- if (index + itemsPerRow < itemCount) {
- // We are not in the last row yet.
- index += itemsPerRow;
- } else {
- // We are either in the last row already, or we are in the second-last row,
- // and there is no item below the current item.
- // In the latter case, we jump to the very last item.
- const int currentColumn = index % itemsPerRow;
- const int lastItemColumn = (itemCount - 1) % itemsPerRow;
- const bool inLastRow = currentColumn < lastItemColumn;
- if (!inLastRow) {
- index = itemCount - 1;
- }
- }
+ updateKeyboardAnchor();
+ index = nextRowIndex();
break;
case Qt::Key_Enter:
} else if (shiftOrControlPressed) {
// The mouse click should only update the selection, not trigger the item
emitItemActivated = false;
- } else if (!KGlobalSettings::singleClick()) {
+ } else if (!m_singleClickActivation) {
emitItemActivated = false;
}
if (emitItemActivated) {
const QPointF pos = transform.map(event->pos());
const int index = m_view->itemAt(pos);
- bool emitItemActivated = !KGlobalSettings::singleClick() &&
+ bool emitItemActivated = !m_singleClickActivation &&
(event->button() & Qt::LeftButton) &&
index >= 0 && index < m_model->count();
if (emitItemActivated) {
const QPixmap pixmap = m_view->createDragPixmap(selectedItems);
drag->setPixmap(pixmap);
- drag->exec(Qt::MoveAction | Qt::CopyAction | Qt::LinkAction, Qt::IgnoreAction);
+ drag->exec(Qt::CopyAction);
}
KItemListWidget* KItemListController::hoveredWidget() const
return 0;
}
+void KItemListController::updateKeyboardAnchor()
+{
+ const bool validAnchor = m_keyboardAnchorIndex >= 0 &&
+ m_keyboardAnchorIndex < m_model->count() &&
+ keyboardAnchorPos(m_keyboardAnchorIndex) == m_keyboardAnchorPos;
+ if (!validAnchor) {
+ const int index = m_selectionManager->currentItem();
+ m_keyboardAnchorIndex = index;
+ m_keyboardAnchorPos = keyboardAnchorPos(index);
+ }
+}
+
+int KItemListController::nextRowIndex() const
+{
+ const int currentIndex = m_selectionManager->currentItem();
+ if (m_keyboardAnchorIndex < 0) {
+ return currentIndex;
+ }
+
+ const int maxIndex = m_model->count() - 1;
+ if (currentIndex == maxIndex) {
+ return currentIndex;
+ }
+
+ // Calculate the index of the last column inside the row of the current index
+ int lastColumnIndex = currentIndex;
+ while (keyboardAnchorPos(lastColumnIndex + 1) > keyboardAnchorPos(lastColumnIndex)) {
+ ++lastColumnIndex;
+ if (lastColumnIndex >= maxIndex) {
+ return currentIndex;
+ }
+ }
+
+ // Based on the last column index go to the next row and calculate the nearest index
+ // that is below the current index
+ int nextRowIndex = lastColumnIndex + 1;
+ int searchIndex = nextRowIndex;
+ qreal minDiff = qAbs(m_keyboardAnchorPos - keyboardAnchorPos(nextRowIndex));
+ while (searchIndex < maxIndex && keyboardAnchorPos(searchIndex + 1) > keyboardAnchorPos(searchIndex)) {
+ ++searchIndex;
+ const qreal searchDiff = qAbs(m_keyboardAnchorPos - keyboardAnchorPos(searchIndex));
+ if (searchDiff < minDiff) {
+ minDiff = searchDiff;
+ nextRowIndex = searchIndex;
+ }
+ }
+
+ return nextRowIndex;
+}
+
+int KItemListController::previousRowIndex() const
+{
+ const int currentIndex = m_selectionManager->currentItem();
+ if (m_keyboardAnchorIndex < 0 || currentIndex == 0) {
+ return currentIndex;
+ }
+
+ // Calculate the index of the first column inside the row of the current index
+ int firstColumnIndex = currentIndex;
+ while (keyboardAnchorPos(firstColumnIndex - 1) < keyboardAnchorPos(firstColumnIndex)) {
+ --firstColumnIndex;
+ if (firstColumnIndex <= 0) {
+ return currentIndex;
+ }
+ }
+
+ // Based on the first column index go to the previous row and calculate the nearest index
+ // that is above the current index
+ int previousRowIndex = firstColumnIndex - 1;
+ int searchIndex = previousRowIndex;
+ qreal minDiff = qAbs(m_keyboardAnchorPos - keyboardAnchorPos(previousRowIndex));
+ while (searchIndex > 0 && keyboardAnchorPos(searchIndex - 1) < keyboardAnchorPos(searchIndex)) {
+ --searchIndex;
+ const qreal searchDiff = qAbs(m_keyboardAnchorPos - keyboardAnchorPos(searchIndex));
+ if (searchDiff < minDiff) {
+ minDiff = searchDiff;
+ previousRowIndex = searchIndex;
+ }
+ }
+
+ return previousRowIndex;
+}
+
+qreal KItemListController::keyboardAnchorPos(int index) const
+{
+ const QRectF itemRect = m_view->itemRect(index);
+ if (!itemRect.isEmpty()) {
+ return (m_view->scrollOrientation() == Qt::Vertical) ? itemRect.x() : itemRect.y();
+ }
+
+ return 0;
+}
+
#include "kitemlistcontroller.moc"
projects / dolphin.git / blobdiff