/***************************************************************************
* Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com> *
+ * Copyright (C) 2012 by Frank Reininghaus <frank78ac@googlemail.com> *
* *
* Based on the Itemviews NG project from Trolltech Labs: *
* http://qt.gitorious.org/qt-labs/itemviews-ng *
QObject(parent),
m_singleClickActivation(KGlobalSettings::singleClick()),
m_selectionTogglePressed(false),
+ m_clearSelectionIfItemsAreNotDragged(false),
m_selectionBehavior(NoSelection),
m_model(0),
m_view(0),
default: break;
}
}
-
- const bool selectSingleItem = itemCount == 1 &&
+
+ const bool selectSingleItem = m_selectionBehavior != NoSelection &&
+ itemCount == 1 &&
(key == Qt::Key_Home || key == Qt::Key_End ||
key == Qt::Key_Up || key == Qt::Key_Down ||
key == Qt::Key_Left || key == Qt::Key_Right);
switch (key) {
case Qt::Key_Home:
index = 0;
+ m_keyboardAnchorIndex = index;
+ m_keyboardAnchorPos = keyboardAnchorPos(index);
break;
case Qt::Key_End:
index = itemCount - 1;
+ m_keyboardAnchorIndex = index;
+ m_keyboardAnchorPos = keyboardAnchorPos(index);
break;
case Qt::Key_Left:
case Qt::Key_Up:
updateKeyboardAnchor();
- index = previousRowIndex();
+ index = previousRowIndex(index);
break;
case Qt::Key_Down:
updateKeyboardAnchor();
- index = nextRowIndex();
+ index = nextRowIndex(index);
+ break;
+
+ case Qt::Key_PageUp:
+ if (m_view->scrollOrientation() == Qt::Horizontal) {
+ // The new current index should correspond to the first item in the current column.
+ int newIndex = qMax(index - 1, 0);
+ while (newIndex != index && m_view->itemRect(newIndex).topLeft().y() < m_view->itemRect(index).topLeft().y()) {
+ index = newIndex;
+ newIndex = qMax(index - 1, 0);
+ }
+ m_keyboardAnchorIndex = index;
+ m_keyboardAnchorPos = keyboardAnchorPos(index);
+ } else {
+ const qreal currentItemBottom = m_view->itemRect(index).bottomLeft().y();
+ const qreal height = m_view->geometry().height();
+
+ // The new current item should be the first item in the current
+ // column whose itemRect's top coordinate is larger than targetY.
+ const qreal targetY = currentItemBottom - height;
+
+ updateKeyboardAnchor();
+ int newIndex = previousRowIndex(index);
+ do {
+ index = newIndex;
+ updateKeyboardAnchor();
+ newIndex = previousRowIndex(index);
+ } while (m_view->itemRect(newIndex).topLeft().y() > targetY && newIndex != index);
+ }
+ break;
+
+ case Qt::Key_PageDown:
+ if (m_view->scrollOrientation() == Qt::Horizontal) {
+ // The new current index should correspond to the last item in the current column.
+ int newIndex = qMin(index + 1, m_model->count() - 1);
+ while (newIndex != index && m_view->itemRect(newIndex).topLeft().y() > m_view->itemRect(index).topLeft().y()) {
+ index = newIndex;
+ newIndex = qMin(index + 1, m_model->count() - 1);
+ }
+ m_keyboardAnchorIndex = index;
+ m_keyboardAnchorPos = keyboardAnchorPos(index);
+ } else {
+ const qreal currentItemTop = m_view->itemRect(index).topLeft().y();
+ const qreal height = m_view->geometry().height();
+
+ // The new current item should be the last item in the current
+ // column whose itemRect's bottom coordinate is smaller than targetY.
+ const qreal targetY = currentItemTop + height;
+
+ updateKeyboardAnchor();
+ int newIndex = nextRowIndex(index);
+ do {
+ index = newIndex;
+ updateKeyboardAnchor();
+ newIndex = nextRowIndex(index);
+ } while (m_view->itemRect(newIndex).bottomLeft().y() < targetY && newIndex != index);
+ }
break;
case Qt::Key_Enter:
}
case Qt::Key_Space:
- if (controlPressed) {
- m_selectionManager->endAnchoredSelection();
- m_selectionManager->setSelected(index, 1, KItemListSelectionManager::Toggle);
- m_selectionManager->beginAnchoredSelection(index);
- } else {
- const int current = m_selectionManager->currentItem();
- m_selectionManager->setSelected(current);
+ if (m_selectionBehavior == MultiSelection) {
+ if (controlPressed) {
+ m_selectionManager->endAnchoredSelection();
+ m_selectionManager->setSelected(index, 1, KItemListSelectionManager::Toggle);
+ m_selectionManager->beginAnchoredSelection(index);
+ } else {
+ const int current = m_selectionManager->currentItem();
+ m_selectionManager->setSelected(current);
+ }
}
break;
}
if (m_selectionManager->currentItem() != index) {
- if (controlPressed) {
- m_selectionManager->endAnchoredSelection();
- }
-
- m_selectionManager->setCurrentItem(index);
+ switch (m_selectionBehavior) {
+ case NoSelection:
+ m_selectionManager->setCurrentItem(index);
+ break;
- if (!shiftOrControlPressed || m_selectionBehavior == SingleSelection) {
+ case SingleSelection:
+ m_selectionManager->setCurrentItem(index);
m_selectionManager->clearSelection();
m_selectionManager->setSelected(index, 1);
- }
+ break;
+
+ case MultiSelection:
+ if (controlPressed) {
+ m_selectionManager->endAnchoredSelection();
+ }
+
+ m_selectionManager->setCurrentItem(index);
- if (!shiftPressed) {
- m_selectionManager->beginAnchoredSelection(index);
+ if (!shiftOrControlPressed) {
+ m_selectionManager->clearSelection();
+ m_selectionManager->setSelected(index, 1);
+ }
+
+ if (!shiftPressed) {
+ m_selectionManager->beginAnchoredSelection(index);
+ }
+ break;
}
m_view->scrollToItem(index);
(!shiftOrControlPressed && !pressedItemAlreadySelected);
if (clearSelection) {
m_selectionManager->clearSelection();
+ } else if (pressedItemAlreadySelected && !shiftOrControlPressed && (event->buttons() & Qt::LeftButton)) {
+ // The user might want to start dragging multiple items, but if he clicks the item
+ // in order to trigger it instead, the other selected items must be deselected.
+ // However, we do not know yet what the user is going to do.
+ // -> remember that the user pressed an item which had been selected already and
+ // clear the selection in mouseReleaseEvent(), unless the items are dragged.
+ m_clearSelectionIfItemsAreNotDragged = true;
}
if (!shiftPressed) {
// done on the mouse-press event, but when using the selection-toggle on a
// selected item the dragged item is not selected yet.
m_selectionManager->setSelected(m_pressedIndex, 1, KItemListSelectionManager::Toggle);
+ } else {
+ // A selected item has been clicked to drag all selected items
+ // -> the selection should not be cleared when the mouse button is released.
+ m_clearSelectionIfItemsAreNotDragged = false;
}
+
startDragging();
}
}
if (index >= 0 && index == m_pressedIndex) {
// The release event is done above the same item as the press event
+ if (m_clearSelectionIfItemsAreNotDragged) {
+ // A selected item has been clicked, but no drag operation has been started
+ // -> clear the rest of the selection.
+ m_selectionManager->clearSelection();
+ m_selectionManager->setSelected(m_pressedIndex, 1, KItemListSelectionManager::Select);
+ m_selectionManager->beginAnchoredSelection(m_pressedIndex);
+ }
+
if (event->button() & Qt::LeftButton) {
bool emitItemActivated = true;
if (m_view->isAboveExpansionToggle(index, pos)) {
m_pressedMousePos = QPointF();
m_pressedIndex = -1;
+ m_clearSelectionIfItemsAreNotDragged = false;
return false;
}
{
Q_UNUSED(event);
Q_UNUSED(transform);
+
+ KItemListWidget* widget = hoveredWidget();
+ if (widget) {
+ widget->setHovered(false);
+ emit itemUnhovered(widget->index());
+ }
return false;
}
}
}
-int KItemListController::nextRowIndex() const
+int KItemListController::nextRowIndex(int index) const
{
- const int currentIndex = m_selectionManager->currentItem();
if (m_keyboardAnchorIndex < 0) {
- return currentIndex;
+ return index;
}
const int maxIndex = m_model->count() - 1;
- if (currentIndex == maxIndex) {
- return currentIndex;
+ if (index == maxIndex) {
+ return index;
}
// Calculate the index of the last column inside the row of the current index
- int lastColumnIndex = currentIndex;
+ int lastColumnIndex = index;
while (keyboardAnchorPos(lastColumnIndex + 1) > keyboardAnchorPos(lastColumnIndex)) {
++lastColumnIndex;
if (lastColumnIndex >= maxIndex) {
- return currentIndex;
+ return index;
}
}
return nextRowIndex;
}
-int KItemListController::previousRowIndex() const
+int KItemListController::previousRowIndex(int index) const
{
- const int currentIndex = m_selectionManager->currentItem();
- if (m_keyboardAnchorIndex < 0 || currentIndex == 0) {
- return currentIndex;
+ if (m_keyboardAnchorIndex < 0 || index == 0) {
+ return index;
}
// Calculate the index of the first column inside the row of the current index
- int firstColumnIndex = currentIndex;
+ int firstColumnIndex = index;
while (keyboardAnchorPos(firstColumnIndex - 1) < keyboardAnchorPos(firstColumnIndex)) {
--firstColumnIndex;
if (firstColumnIndex <= 0) {
- return currentIndex;
+ return index;
}
}
projects / dolphin.git / blobdiff