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Fix component unselectable issue 

If the initial Qt::DecorationRole give an empty QPixmap, the item will be unselectable sometimes.
So if nothing to show, should return an transparent image with the same size.
master
Jeremy HU 2022-10-06 21:16:21 +11:00
parent e9b1c90220
commit 5f75a6d7d8
1 changed files with 20 additions and 2 deletions
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22
application/sources/component_list_model.cc
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@ -27,14 +27,23 @@ ComponentListModel::ComponentListModel(const Document *document, QObject *parent
void ComponentListModel::reload()
{
std::pair<QModelIndex, QModelIndex> beginEnd;
beginResetModel();
m_componentIdToIndexMap.clear();
const SkeletonComponent *listingComponent = m_document->findComponent(m_listingComponentId);
if (nullptr != listingComponent) {
for (int i = 0; i < (int)listingComponent->childrenIds.size(); ++i) {
m_componentIdToIndexMap[listingComponent->childrenIds[i]] = index(i);
m_componentIdToIndexMap[listingComponent->childrenIds[i]] = createIndex(i, 0);
}
if (!listingComponent->childrenIds.empty()) {
beginEnd.first = m_componentIdToIndexMap[listingComponent->childrenIds.front()];
beginEnd.second = m_componentIdToIndexMap[listingComponent->childrenIds.back()];
}
}
emit this->layoutChanged();
endResetModel();
if (!m_componentIdToIndexMap.empty())
emit dataChanged(beginEnd.first, beginEnd.second);
emit layoutChanged();
}
int ComponentListModel::rowCount(const QModelIndex &parent) const
@ -98,6 +107,15 @@ QVariant ComponentListModel::data(const QModelIndex &index, int role) const
case Qt::DecorationRole: {
const SkeletonComponent *component = modelIndexToComponent(index);
if (nullptr != component) {
if (0 == component->previewPixmap.width()) {
static QPixmap s_emptyPixmap;
if (0 == s_emptyPixmap.width()) {
QImage image((int)Theme::partPreviewImageSize, (int)Theme::partPreviewImageSize, QImage::Format_ARGB32);
image.fill(Qt::transparent);
s_emptyPixmap = QPixmap::fromImage(image);
}
return s_emptyPixmap;
}
return component->previewPixmap;
}
}