Debugger: Work on WatchModel performance

Don't instantiate repeating boilerplate item data in some
cases (such as large arrays).

This makes it necessary to access parent WatchItems in
a lot more cases than before and needs another separation of
WatchItem/WatchModel code to keep the dumper autotests
in a functional state.

For a plain std::vector<int> with 1 mio items this reduces
 extraction time from more than 2 minutes to about 3 seconds.

Change-Id: I175c5f6ee90434a6e85342d8bb71bd10a04dd271
Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>
Reviewed-by: David Schulz <david.schulz@theqtcompany.com>
This commit is contained in:
hjk
2015-12-16 17:17:38 +01:00
parent 768b775f52
commit 7de7eb6bca
19 changed files with 878 additions and 912 deletions

View File

@@ -193,11 +193,11 @@ void DraggableLabel::mouseMoveEvent(QMouseEvent * event)
//
/////////////////////////////////////////////////////////////////////////
class ToolTipWatchItem : public Utils::TreeItem
class ToolTipWatchItem : public TreeItem
{
public:
ToolTipWatchItem() : expandable(false) {}
ToolTipWatchItem(WatchItem *item);
ToolTipWatchItem(TreeItem *item);
bool hasChildren() const { return expandable; }
bool canFetchMore() const { return childCount() == 0 && expandable && model(); }
@@ -214,17 +214,19 @@ public:
QByteArray iname;
};
ToolTipWatchItem::ToolTipWatchItem(WatchItem *item)
ToolTipWatchItem::ToolTipWatchItem(TreeItem *item)
{
name = item->displayName();
value = item->displayValue();
type = item->displayType();
iname = item->iname;
valueColor = item->valueColor(1);
const TreeModel *model = item->model();
QModelIndex idx = model->indexForItem(item);
name = model->data(idx.sibling(idx.row(), 0), Qt::DisplayRole).toString();
value = model->data(idx.sibling(idx.row(), 1), Qt::DisplayRole).toString();
type = model->data(idx.sibling(idx.row(), 2), Qt::DisplayRole).toString();
iname = model->data(idx.sibling(idx.row(), 0), LocalsINameRole).toByteArray();
valueColor = model->data(idx.sibling(idx.row(), 1), Qt::ForegroundRole).value<QColor>();
expandable = item->hasChildren();
expression = item->expression();
expression = model->data(idx.sibling(idx.row(), 0), Qt::EditRole).toString();
foreach (TreeItem *child, item->children())
appendChild(new ToolTipWatchItem(static_cast<WatchItem *>(child)));
appendChild(new ToolTipWatchItem(child));
}
/////////////////////////////////////////////////////////////////////////
@@ -1175,7 +1177,7 @@ static void slotTooltipOverrideRequested
purgeClosedToolTips();
// Prefer a filter on an existing local variable if it can be found.
const WatchData *localVariable = engine->watchHandler()->findCppLocalVariable(context.expression);
const WatchItem *localVariable = engine->watchHandler()->findCppLocalVariable(context.expression);
if (localVariable) {
context.expression = QLatin1String(localVariable->exp);
if (context.expression.isEmpty())