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/*
* divelistview.cpp
*
* classes for the divelist of Subsurface
*
*/
#include "divelistview.h"
#include "models.h"
#include "modeldelegates.h"
#include <QApplication>
#include <QHeaderView>
#include <QDebug>
#include <QSettings>
#include <QKeyEvent>
#include <QSortFilterProxyModel>
#include <QAction>
DiveListView::DiveListView(QWidget *parent) : QTreeView(parent), mouseClickSelection(false), currentHeaderClicked(-1)
{
setUniformRowHeights(true);
setItemDelegateForColumn(TreeItemDT::RATING, new StarWidgetsDelegate());
QSortFilterProxyModel *model = new QSortFilterProxyModel(this);
model->setSortRole(TreeItemDT::SORT_ROLE);
setModel(model);
setSortingEnabled(false);
header()->setContextMenuPolicy(Qt::ActionsContextMenu);
}
void DiveListView::headerClicked(int i )
{
if (currentHeaderClicked == i){
sortByColumn(i);
return;
}
if (currentLayout == (i == (int) TreeItemDT::NR ? DiveTripModel::TREE : DiveTripModel::LIST)){
sortByColumn(i);
return;
}
QItemSelection oldSelection = selectionModel()->selection();
QList<struct dive*> currentSelectedDives;
Q_FOREACH(const QModelIndex& index , oldSelection.indexes()){
if (index.column() != 0) // We only care about the dives, so, let's stick to rows and discard columns.
continue;
struct dive *d = (struct dive *) index.data(TreeItemDT::DIVE_ROLE).value<void*>();
if (d){
currentSelectedDives.push_back(d);
}
}
// clear the model, repopulate with new indexes.
reload( i == (int) TreeItemDT::NR ? DiveTripModel::TREE : DiveTripModel::LIST, false);
selectionModel()->clearSelection();
sortByColumn(i, Qt::DescendingOrder);
QSortFilterProxyModel *m = qobject_cast<QSortFilterProxyModel*>(model());
// repopulat the selections.
Q_FOREACH(struct dive *d, currentSelectedDives){
QModelIndexList match = m->match(m->index(0,0), TreeItemDT::NR, d->number, 1, Qt::MatchRecursive);
QModelIndex idx = match.first();
if (i == (int) TreeItemDT::NR && idx.parent().isValid() ){ // Tree Mode Activated.
QModelIndex parent = idx.parent();
expand(parent);
}
selectionModel()->select( idx, QItemSelectionModel::Select | QItemSelectionModel::Rows);
}
}
void DiveListView::reload(DiveTripModel::Layout layout, bool forceSort)
{
DiveTripModel::Layout oldLayout = currentLayout;
currentLayout = layout;
header()->setClickable(true);
connect(header(), SIGNAL(sectionPressed(int)), this, SLOT(headerClicked(int)), Qt::UniqueConnection);
QSortFilterProxyModel *m = qobject_cast<QSortFilterProxyModel*>(model());
QAbstractItemModel *oldModel = m->sourceModel();
if (oldModel)
oldModel->deleteLater();
DiveTripModel *tripModel = new DiveTripModel(this);
tripModel->setLayout(layout);
m->setSourceModel(tripModel);
if(!forceSort)
return;
sortByColumn(0, Qt::DescendingOrder);
QModelIndex firstDiveOrTrip = m->index(0,0);
if (firstDiveOrTrip.isValid()) {
if (m->index(0,0, firstDiveOrTrip).isValid())
setCurrentIndex(m->index(0,0, firstDiveOrTrip));
else
setCurrentIndex(firstDiveOrTrip);
}
}
void DiveListView::reloadHeaderActions()
{
// Populate the context menu of the headers that will show
// the menu to show / hide columns.
if (!header()->actions().size()) {
QAction *visibleAction = new QAction("Visible:", header());
header()->addAction(visibleAction);
QSettings s;
s.beginGroup("DiveListColumnState");
for(int i = 0; i < model()->columnCount(); i++) {
QString title = QString("show %1").arg(model()->headerData(i, Qt::Horizontal).toString());
QString settingName = QString("showColumn%1").arg(i);
QAction *a = new QAction(title, header());
bool shown = s.value(settingName, true).toBool();
a->setCheckable(true);
a->setChecked(shown);
a->setProperty("index", i);
a->setProperty("settingName", settingName);
connect(a, SIGNAL(triggered(bool)), this, SLOT(toggleColumnVisibilityByIndex()));
header()->addAction(a);
setColumnHidden(i, !shown);
}
s.endGroup();
}
}
void DiveListView::toggleColumnVisibilityByIndex()
{
QAction *action = qobject_cast<QAction*>(sender());
if (!action)
return;
QSettings s;
s.beginGroup("DiveListColumnState");
s.setValue(action->property("settingName").toString(), action->isChecked());
s.endGroup();
s.sync();
setColumnHidden(action->property("index").toInt(), !action->isChecked());
}
void DiveListView::currentChanged(const QModelIndex& current, const QModelIndex& previous)
{
if (!current.isValid())
return;
const QAbstractItemModel *model = current.model();
int selectedDive = 0;
struct dive *dive = (struct dive*) model->data(current, TreeItemDT::DIVE_ROLE).value<void*>();
if (!dive) // it's a trip! select first child.
dive = (struct dive*) model->data(current.child(0,0), TreeItemDT::DIVE_ROLE).value<void*>();
selectedDive = get_divenr(dive);
if (selectedDive == selected_dive)
return;
Q_EMIT currentDiveChanged(selectedDive);
}
void DiveListView::selectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
{
QItemSelection newSelected = selected.size() ? selected : selectionModel()->selection();
QItemSelection newDeselected = deselected;
disconnect(selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)), this, SLOT(selectionChanged(QItemSelection,QItemSelection)));
disconnect(selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)), this, SLOT(currentChanged(QModelIndex,QModelIndex)));
Q_FOREACH(const QModelIndex& index, newSelected.indexes()) {
if(index.column() != 0)
continue;
const QAbstractItemModel *model = index.model();
struct dive *dive = (struct dive*) model->data(index, TreeItemDT::DIVE_ROLE).value<void*>();
if (!dive) { // it's a trip!
if (model->rowCount(index)) {
QItemSelection selection;
selection.select(index.child(0,0), index.child(model->rowCount(index) -1 , 0));
selectionModel()->select(selection, QItemSelectionModel::Select | QItemSelectionModel::Rows);
selectionModel()->setCurrentIndex(index, QItemSelectionModel::Select | QItemSelectionModel::NoUpdate);
if (!isExpanded(index)) {
expand(index);
}
}
}
}
QTreeView::selectionChanged(selectionModel()->selection(), newDeselected);
connect(selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)), this, SLOT(selectionChanged(QItemSelection,QItemSelection)));
connect(selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)), this, SLOT(currentChanged(QModelIndex,QModelIndex)));
}
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