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Dive list view: setup columns in constructor

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The column-widths must only be set once the source-model is that.
The old code realized this with a rather complicated logic.

Instead, simply set the source-model in the constructor and
set the column widths after that. Rename the corresponding
function from "setupUi" to "setColumnWidths".

Moreover, the setupUi function had different code-paths for
the first and other calls. Since it is only called once,
remove the other code paths.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2018-07-26 18:03:07 +02:00 • committed by Dirk Hohndel
parent 079b99135a
commit 67a875ef81
2 changed files with 7 additions and 20 deletions
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21
desktop-widgets/divelistview.cpp
View file

@ -36,6 +36,8 @@ DiveListView::DiveListView(QWidget *parent) : QTreeView(parent), mouseClickSelec
model->setSortRole(DiveTripModel::SORT_ROLE); model->setSortRole(DiveTripModel::SORT_ROLE);
model->setFilterKeyColumn(-1); // filter all columns model->setFilterKeyColumn(-1); // filter all columns
model->setFilterCaseSensitivity(Qt::CaseInsensitive); model->setFilterCaseSensitivity(Qt::CaseInsensitive);
DiveTripModel *tripModel = new DiveTripModel(this);
model->setSourceModel(tripModel);
setModel(model); setModel(model);
connect(model, SIGNAL(layoutChanged()), this, SLOT(fixMessyQtModelBehaviour())); connect(model, SIGNAL(layoutChanged()), this, SLOT(fixMessyQtModelBehaviour()));
@ -48,11 +50,9 @@ DiveListView::DiveListView(QWidget *parent) : QTreeView(parent), mouseClickSelec
installEventFilter(this); installEventFilter(this);
// TODO: We use a dummy DiveTripModel to calculated column widths.
// Change this to a global object.
DiveTripModel tripModel;
for (int i = DiveTripModel::NR; i < DiveTripModel::COLUMNS; i++) for (int i = DiveTripModel::NR; i < DiveTripModel::COLUMNS; i++)
calculateInitialColumnWidth(tripModel, i); calculateInitialColumnWidth(tripModel, i);
setColumnWidths();
} }
DiveListView::~DiveListView() DiveListView::~DiveListView()
@ -112,11 +112,9 @@ void DiveListView::calculateInitialColumnWidth(const DiveTripModel &tripModel, i
initialColumnWidths[col] = std::max(initialColumnWidths[col], width); initialColumnWidths[col] = std::max(initialColumnWidths[col], width);
} }
void DiveListView::setupUi() void DiveListView::setColumnWidths()
{ {
QSettings settings; QSettings settings;
static bool firstRun = true;
if (firstRun)
backupExpandedRows(); backupExpandedRows();
settings.beginGroup("ListWidget"); settings.beginGroup("ListWidget");
/* if no width are set, use the calculated width for each column; /* if no width are set, use the calculated width for each column;
@ -132,11 +130,7 @@ void DiveListView::setupUi()
setColumnWidth(i, initialColumnWidths[i]); setColumnWidth(i, initialColumnWidths[i]);
} }
settings.endGroup(); settings.endGroup();
if (firstRun)
restoreExpandedRows(); restoreExpandedRows();
else
collapseAll();
firstRun = false;
setColumnWidth(lastVisibleColumn(), 10); setColumnWidth(lastVisibleColumn(), 10);
} }
@ -399,13 +393,6 @@ void DiveListView::headerClicked(int i)
void DiveListView::reload(DiveTripModel::Layout layout, bool forceSort) void DiveListView::reload(DiveTripModel::Layout layout, bool forceSort)
{ {
// we want to run setupUi() once we actually are displaying something
// in the widget
static bool first = true;
if (first && dive_table.nr > 0) {
setupUi();
first = false;
}
if (layout == DiveTripModel::CURRENT) if (layout == DiveTripModel::CURRENT)
layout = currentLayout; layout = currentLayout;
else else

2
desktop-widgets/divelistview.h
View file

@ -77,7 +77,7 @@ private:
/* if dive_trip_t is null, there's no problem. */ /* if dive_trip_t is null, there's no problem. */
QMultiHash<dive_trip_t *, int> selectedDives; QMultiHash<dive_trip_t *, int> selectedDives;
void merge_trip(const QModelIndex &a, const int offset); void merge_trip(const QModelIndex &a, const int offset);
void setupUi(); void setColumnWidths();
void calculateInitialColumnWidth(const DiveTripModel &tripModel, int col); void calculateInitialColumnWidth(const DiveTripModel &tripModel, int col);
void backupExpandedRows(); void backupExpandedRows();
void restoreExpandedRows(); void restoreExpandedRows();