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Only emit dataChanged() when the data actually changed

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This commit is contained in:
Scharel Clemens 2020-01-12 16:01:54 +01:00
parent 73adff15ca
commit 20635dfd6e
1 changed files with 17 additions and 13 deletions
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30
src/notesmodel.cpp
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@ -201,7 +201,7 @@ bool NotesModel::setData(const QModelIndex &index, const QVariant &value, int ro
switch (role) {
case IdRole: {
double id = value.toDouble(&retval);
if (retval) {
if (retval && id != m_notes[index.row()].id()) {
m_notes[index.row()].setId(id);
emit dataChanged(index, index, QVector<int>{ IdRole });
}
@ -209,7 +209,7 @@ bool NotesModel::setData(const QModelIndex &index, const QVariant &value, int ro
}
case ModifiedRole: {
double modified = value.toDouble(&retval);
if (retval) {
if (retval && modified != m_notes[index.row()].modified()) {
m_notes[index.row()].setModified(modified);
emit dataChanged(index, index, QVector<int>{ ModifiedRole });
}
@ -217,7 +217,7 @@ bool NotesModel::setData(const QModelIndex &index, const QVariant &value, int ro
}
case TitleRole: {
QString title = value.toString();
if (!title.isEmpty()) {
if (title != m_notes[index.row()].title()) {
m_notes[index.row()].setTitle(title);
emit dataChanged(index, index, QVector<int>{ TitleRole });
retval = true;
@ -226,7 +226,7 @@ bool NotesModel::setData(const QModelIndex &index, const QVariant &value, int ro
}
case CategoryRole: {
QString category = value.toString();
if (!category.isEmpty()) {
if (category != m_notes[index.row()].category()) {
m_notes[index.row()].setCategory(category);
emit dataChanged(index, index, QVector<int>{ CategoryRole });
retval = true;
@ -235,7 +235,7 @@ bool NotesModel::setData(const QModelIndex &index, const QVariant &value, int ro
}
case ContentRole: {
QString content = value.toString();
if (!content.isEmpty()) {
if (content != m_notes[index.row()].content()) {
m_notes[index.row()].setContent(content);
emit dataChanged(index, index, QVector<int>{ ContentRole });
retval = true;
@ -244,14 +244,16 @@ bool NotesModel::setData(const QModelIndex &index, const QVariant &value, int ro
}
case FavoriteRole: {
bool favorite = value.toBool();
m_notes[index.row()].setFavorite(favorite);
emit dataChanged(index, index, QVector<int>{ FavoriteRole });
retval = true;
if (favorite != m_notes[index.row()].favorite()) {
m_notes[index.row()].setFavorite(favorite);
emit dataChanged(index, index, QVector<int>{ FavoriteRole });
retval = true;
}
break;
}
case EtagRole: {
QString etag = value.toString();
if (!etag.isEmpty()) {
if (etag != m_notes[index.row()].etag()) {
m_notes[index.row()].setEtag(etag);
emit dataChanged(index, index, QVector<int>{ EtagRole });
retval = true;
@ -260,14 +262,16 @@ bool NotesModel::setData(const QModelIndex &index, const QVariant &value, int ro
}
case ErrorRole: {
bool error = value.toBool();
m_notes[index.row()].setError(error);
emit dataChanged(index, index, QVector<int>{ ErrorRole });
retval = true;
if (error != m_notes[index.row()].error()) {
m_notes[index.row()].setError(error);
emit dataChanged(index, index, QVector<int>{ ErrorRole });
retval = true;
}
break;
}
case ErrorMessageRole: {
QString errorMessage = value.toString();
if (!errorMessage.isEmpty()) {
if (errorMessage != m_notes[index.row()].errorMessage()) {
m_notes[index.row()].setErrorMessage(errorMessage);
emit dataChanged(index, index, QVector<int>{ ErrorMessageRole });
retval = true;