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QmlDesigner: Improve performance of item library

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If there are manu components (e.g. 200) in the same directory,
the model was updated for each component.

This patch compresses the signal and therefore reduced the updates.

Change-Id: I80b38df59952dda7e67e258ecd6e5f29d6a036e6
Reviewed-by: Tim Jenssen <tim.jenssen@theqtcompany.com>
This commit is contained in:
Thomas Hartmann
2016-06-24 15:49:26 +02:00
parent 63e158b4d4
commit 953ec9867f
2 changed files with 14 additions and 2 deletions
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13
src/plugins/qmldesigner/components/itemlibrary/itemlibrarywidget.cpp
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@@ -66,6 +66,8 @@ ItemLibraryWidget::ItemLibraryWidget(QWidget *parent) :
m_resourcesView(new ItemLibraryTreeView(this)),
m_filterFlag(QtBasic)
{
m_compressionTimer.setInterval(200);
m_compressionTimer.setSingleShot(true);
ItemLibraryModel::registerQmlTypes();
setWindowTitle(tr("Library", "Title of library view"));
@@ -145,6 +147,8 @@ ItemLibraryWidget::ItemLibraryWidget(QWidget *parent) :
m_qmlSourceUpdateShortcut = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_F5), this);
connect(m_qmlSourceUpdateShortcut, SIGNAL(activated()), this, SLOT(reloadQmlSource()));
connect(&m_compressionTimer, SIGNAL(timeout()), this, SLOT(updateModel()));
// init the first load of the QML UI elements
reloadQmlSource();
}
@@ -156,11 +160,11 @@ void ItemLibraryWidget::setItemLibraryInfo(ItemLibraryInfo *itemLibraryInfo)
if (m_itemLibraryInfo)
disconnect(m_itemLibraryInfo.data(), SIGNAL(entriesChanged()),
this, SLOT(updateModel()));
this, SLOT(delayedUpdateModel()));
m_itemLibraryInfo = itemLibraryInfo;
if (itemLibraryInfo)
connect(m_itemLibraryInfo.data(), SIGNAL(entriesChanged()),
this, SLOT(updateModel()));
this, SLOT(delayedUpdateModel()));
updateModel();
}
@@ -209,6 +213,11 @@ void ItemLibraryWidget::setSearchFilter(const QString &searchFilter)
}
}
void ItemLibraryWidget::delayedUpdateModel()
{
m_compressionTimer.start();
}
void ItemLibraryWidget::setModel(Model *model)
{
m_model = model;