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Loads of fixes

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This commit is contained in:
Jan Dalheimer 2013-12-30 18:46:12 +01:00
parent 4662fbd298
commit 1e1b2342f4
3 changed files with 77 additions and 48 deletions
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115
CategorizedView.cpp
View File

@ -79,7 +79,6 @@ int CategorizedView::Category::contentHeight() const
{
return 0;
}
const int rows = qMax(1, qCeil((qreal)view->numItemsForCategory(this) / (qreal)view->itemsPerRow()));
QMap<int, int> rowToHeightMapping;
foreach (const QModelIndex &index, view->itemsForCategory(this))
{
@ -90,20 +89,23 @@ int CategorizedView::Category::contentHeight() const
}
}
int result = 0;
for (int i = 0; i < rows; ++i)
if (!rowToHeightMapping.isEmpty())
{
Q_ASSERT(rowToHeightMapping.contains(i));
result += rowToHeightMapping[i];
for (int i = 0; i < numRows(); ++i)
{
Q_ASSERT(rowToHeightMapping.contains(i));
result += rowToHeightMapping[i];
}
}
return result;
}
QSize CategorizedView::Category::categoryTotalSize() const
int CategorizedView::Category::numRows() const
{
return QSize(view->contentWidth(), contentHeight());
return qMax(1, qCeil((qreal)view->numItemsForCategory(this) / (qreal)view->itemsPerRow()));
}
CategorizedView::CategorizedView(QWidget *parent)
: QListView(parent), m_leftMargin(5), m_rightMargin(5), m_categoryMargin(5)//, m_updatesDisabled(false), m_categoryEditor(0), m_editedCategory(0)
: QListView(parent), m_leftMargin(5), m_rightMargin(5), m_bottomMargin(5), m_categoryMargin(5)//, m_updatesDisabled(false), m_categoryEditor(0), m_editedCategory(0)
{
setViewMode(IconMode);
setMovement(Snap);
@ -168,10 +170,7 @@ void CategorizedView::updateGeometries()
{
QListView::updateGeometries();
m_cachedItemWidth = -1;
m_cachedCategoryToIndexMapping.clear();
m_cachedVisualRects.clear();
m_cachedItemSizes.clear();
invalidateCaches();
QMap<QString, Category *> cats;
@ -213,6 +212,7 @@ void CategorizedView::updateGeometries()
}
// remove the last margin (we don't want it)
totalHeight -= m_categoryMargin;
totalHeight += m_bottomMargin;
verticalScrollBar()->setRange(0, totalHeight- height());
}
@ -265,7 +265,7 @@ int CategorizedView::numItemsForCategory(const CategorizedView::Category *catego
}
QList<QModelIndex> CategorizedView::itemsForCategory(const CategorizedView::Category *category) const
{
if (!m_cachedCategoryToIndexMapping.contains(category))
if (!m_cachedCategoryToIndexMapping.contains(category) || true)
{
QList<QModelIndex> *indices = new QList<QModelIndex>();
for (int i = 0; i < model()->rowCount(); ++i)
@ -393,26 +393,30 @@ QPair<int, int> CategorizedView::categoryInternalPosition(const QModelIndex &ind
}
return qMakePair(x, y);
}
int CategorizedView::itemHeightForCategoryRow(const CategorizedView::Category *category, const int internalRow) const
{
foreach (const QModelIndex &i, itemsForCategory(category))
{
QPair<int, int> pos = categoryInternalPosition(i);
if (pos.second == internalRow)
{
return itemSize(i).height();
}
}
return -1;
}
void CategorizedView::mousePressEvent(QMouseEvent *event)
{
//endCategoryEditor();
QPoint pos = event->pos();
QPoint pos = event->pos() + offset();
QPersistentModelIndex index = indexAt(pos);
m_pressedIndex = index;
m_pressedAlreadySelected = selectionModel()->isSelected(m_pressedIndex);
QItemSelectionModel::SelectionFlags command = selectionCommand(index, event);
QPoint offset = QPoint(horizontalOffset(), verticalOffset());
if (!(command & QItemSelectionModel::Current))
{
m_pressedPosition = pos + offset;
}
else if (!indexAt(m_pressedPosition - offset).isValid())
{
m_pressedPosition = visualRect(currentIndex()).center() + offset;
}
m_pressedPosition = pos;
m_pressedCategory = categoryAt(m_pressedPosition);
if (m_pressedCategory)
@ -430,7 +434,7 @@ void CategorizedView::mousePressEvent(QMouseEvent *event)
setAutoScroll(false);
selectionModel()->setCurrentIndex(index, QItemSelectionModel::NoUpdate);
setAutoScroll(autoScroll);
QRect rect(m_pressedPosition - offset, pos);
QRect rect(m_pressedPosition, pos);
if (command.testFlag(QItemSelectionModel::Toggle))
{
command &= ~QItemSelectionModel::Toggle;
@ -459,7 +463,7 @@ void CategorizedView::mouseMoveEvent(QMouseEvent *event)
if (state() == DraggingState)
{
topLeft = m_pressedPosition - QPoint(horizontalOffset(), verticalOffset());
topLeft = m_pressedPosition - offset();
if ((topLeft - event->pos()).manhattanLength() > QApplication::startDragDistance())
{
m_pressedIndex = QModelIndex();
@ -474,7 +478,7 @@ void CategorizedView::mouseMoveEvent(QMouseEvent *event)
if (selectionMode() != SingleSelection)
{
topLeft = m_pressedPosition - QPoint(horizontalOffset(), verticalOffset());
topLeft = m_pressedPosition - offset();
}
else
{
@ -515,7 +519,7 @@ void CategorizedView::mouseMoveEvent(QMouseEvent *event)
}
void CategorizedView::mouseReleaseEvent(QMouseEvent *event)
{
QPoint pos = event->pos();
QPoint pos = event->pos() - offset();
QPersistentModelIndex index = indexAt(pos);
bool click = (index == m_pressedIndex && index.isValid()) || (m_pressedCategory && m_pressedCategory == categoryAt(pos));
@ -582,8 +586,10 @@ void CategorizedView::mouseDoubleClickEvent(QMouseEvent *event)
void CategorizedView::paintEvent(QPaintEvent *event)
{
QPainter painter(this->viewport());
QPoint offset(horizontalOffset(), verticalOffset());
painter.translate(-offset);
painter.translate(-offset());
// FIXME we shouldn't need to do this
invalidateCaches();
int y = 0;
for (int i = 0; i < m_categories.size(); ++i)
@ -665,7 +671,7 @@ void CategorizedView::dragEnterEvent(QDragEnterEvent *event)
{
return;
}
m_lastDragPosition = event->pos();
m_lastDragPosition = event->pos() + offset();
viewport()->update();
event->accept();
}
@ -675,7 +681,7 @@ void CategorizedView::dragMoveEvent(QDragMoveEvent *event)
{
return;
}
m_lastDragPosition = event->pos();
m_lastDragPosition = event->pos() + offset();
viewport()->update();
event->accept();
}
@ -696,7 +702,7 @@ void CategorizedView::dropEvent(QDropEvent *event)
return;
}
QPair<Category *, int> dropPos = rowDropPos(event->pos());
QPair<Category *, int> dropPos = rowDropPos(event->pos() + offset());
const Category *category = dropPos.first;
const int row = dropPos.second;
@ -729,7 +735,8 @@ void CategorizedView::startDrag(Qt::DropActions supportedActions)
}
QRect rect;
QPixmap pixmap = renderToPixmap(indexes, &rect);
rect.adjust(horizontalOffset(), verticalOffset(), 0, 0);
rect.translate(offset());
//rect.adjust(horizontalOffset(), verticalOffset(), 0, 0);
QDrag *drag = new QDrag(this);
drag->setPixmap(pixmap);
drag->setMimeData(data);
@ -935,15 +942,22 @@ QPair<CategorizedView::Category *, int> CategorizedView::rowDropPos(const QPoint
int internalColumn = -1;
{
const int itemWidth = this->itemWidth();
for (int i = 0, c = 0;
i < contentWidth();
i += itemWidth, ++c)
if (pos.x() >= (itemWidth * itemsPerRow()))
{
if (pos.x() > (i - itemWidth / 2) &&
pos.x() < (i + itemWidth / 2))
internalColumn = itemsPerRow();
}
else
{
for (int i = 0, c = 0;
i < contentWidth();
i += itemWidth + spacing(), ++c)
{
internalColumn = c;
break;
if (pos.x() > (i - itemWidth / 2) &&
pos.x() <= (i + itemWidth / 2))
{
internalColumn = c;
break;
}
}
}
if (internalColumn == -1)
@ -956,13 +970,10 @@ QPair<CategorizedView::Category *, int> CategorizedView::rowDropPos(const QPoint
int internalRow = -1;
{
// FIXME rework the drag and drop code
const int itemHeight = 0; //itemSize().height();
const int top = categoryTop(category);
for (int i = top + category->headerHeight(), r = 0;
i < top + category->totalHeight();
i += itemHeight, ++r)
for (int r = 0, h = top; r < category->numRows(); h += itemHeightForCategoryRow(category, r), ++r)
{
if (pos.y() > i && pos.y() < (i + itemHeight))
if (pos.y() > h && pos.y() < (h + itemHeightForCategoryRow(category, r)))
{
internalRow = r;
break;
@ -984,11 +995,23 @@ QPair<CategorizedView::Category *, int> CategorizedView::rowDropPos(const QPoint
int categoryRow = internalRow * itemsPerRow() + internalColumn;
// this is used if we're past the last item
int numItemsInLastRow = indices.size() % itemsPerRow();
if (internalColumn >= numItemsInLastRow)
if (categoryRow >= indices.size())
{
return qMakePair(category, indices.last().row() + 1);
}
return qMakePair(category, indices.at(categoryRow).row());
}
void CategorizedView::invalidateCaches()
{
m_cachedItemWidth = -1;
m_cachedCategoryToIndexMapping.clear();
m_cachedVisualRects.clear();
m_cachedItemSizes.clear();
}
QPoint CategorizedView::offset() const
{
return QPoint(horizontalOffset(), verticalOffset());
}

8
CategorizedView.h
View File

@ -59,7 +59,7 @@ private:
int totalHeight() const;
int headerHeight() const;
int contentHeight() const;
QSize categoryTotalSize() const;
int numRows() const;
};
friend struct Category;
@ -69,6 +69,7 @@ private:
int m_leftMargin;
int m_rightMargin;
int m_bottomMargin;
int m_categoryMargin;
int m_itemSpacing;
@ -112,6 +113,7 @@ private:
QPoint m_lastDragPosition;
QPair<int, int> categoryInternalPosition(const QModelIndex &index) const;
int itemHeightForCategoryRow(const Category *category, const int internalRow) const;
QPixmap renderToPixmap(const QModelIndexList &indices, QRect *r) const;
QList<QPair<QRect, QModelIndex> > draggablePaintPairs(const QModelIndexList &indices, QRect *r) const;
@ -119,6 +121,10 @@ private:
bool isDragEventAccepted(QDropEvent *event);
QPair<Category *, int> rowDropPos(const QPoint &pos);
void invalidateCaches();
QPoint offset() const;
};
#endif // WIDGET_H

2
main.cpp
View File

@ -64,7 +64,7 @@ int main(int argc, char *argv[])
model.setItem(8, createItem(Qt::darkGreen, "Dark Green", ""));
model.setItem(9, createItem(Qt::green, "Green", ""));
for (int i = 0; i < 21; ++i)
for (int i = 0; i < 20; ++i)
{
model.setItem(i + 10, createItem(i+1, "Items 1-20"));
}