subsurface/desktop-widgets/divelistview.h
Berthold Stoeger 2021035cfc selection: replace selectedTrips() by singleSelectedTrip() function
To check wether the tab widgets should show the trip view, they called
the selectedTrips() function. The trip view was shown if that contained
only one trip. However, the selectedTrips() function was very slow,
because it has to query to core models.

Change the function to singleSelectedTrip(), which returns a trip
if there is exactly one trip selected. The function returns early
if there is more than one trip selected. This makes the select-all
case much faster.

There are two cases which are still very slow:
- List mode, because here all top-level items are queried.
- Dive log with many only top-level items.

Ultimately, we will have to cache the trip selection because
querying the model is too slow.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2020-04-26 13:54:59 -07:00

94 lines
2.9 KiB
C++

// SPDX-License-Identifier: GPL-2.0
/*
* divelistview.h
*
* header file for the dive list of Subsurface
*
*/
#ifndef DIVELISTVIEW_H
#define DIVELISTVIEW_H
/*! A view subclass for use with dives
Note: calling this a list view might be misleading?
*/
#include <QTreeView>
#include <QLineEdit>
#include <QNetworkAccessManager>
#include "qt-models/divetripmodel.h"
#include "core/subsurface-qt/divelistnotifier.h"
class DiveListView : public QTreeView {
Q_OBJECT
public:
DiveListView(QWidget *parent = 0);
~DiveListView();
void setSortOrder(int i, Qt::SortOrder order); // Call to set sort order
void reload(); // Call to reload model data
dive_trip *singleSelectedTrip();
static QString lastUsedImageDir();
static void updateLastUsedImageDir(const QString &s);
void loadImages();
void loadWebImages();
signals:
void divesSelected();
public
slots:
void reloadHeaderActions();
private
slots:
void toggleColumnVisibilityByIndex();
void sortIndicatorChanged(int index, Qt::SortOrder order);
void removeFromTrip();
void deleteDive();
void markDiveInvalid();
void markDiveValid();
void mergeTripAbove();
void mergeTripBelow();
void newTripAbove();
void addToTripAbove();
void addToTripBelow();
void mergeDives();
void splitDives();
void renumberDives();
void shiftTimes();
void diveSelectionChanged(const QVector<QModelIndex> &indices);
void currentDiveChanged(QModelIndex index);
void tripChanged(dive_trip *trip, TripField);
private:
void rowsInserted(const QModelIndex &parent, int start, int end) override;
void reset() override;
void setSelection(const QRect &rect, QItemSelectionModel::SelectionFlags flags) override;
void unselectDives();
void mouseReleaseEvent(QMouseEvent *event) override;
void keyPressEvent(QKeyEvent *event) override;
void selectAll() override;
void selectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
void selectionChangeDone();
DiveTripModelBase::Layout currentLayout;
QModelIndex contextMenuIndex;
// Remember the initial column widths, to avoid writing unchanged widths to the settings
QVector<int> initialColumnWidths;
void resetModel(); // Call after model changed
void merge_trip(const QModelIndex &a, const int offset);
void setColumnWidths();
void calculateInitialColumnWidth(int col);
std::vector<int> backupExpandedRows();
void restoreExpandedRows(const std::vector<int> &);
int lastVisibleColumn();
void selectTrip(dive_trip *trip);
void updateLastImageTimeOffset(int offset);
int lastImageTimeOffset();
void addToTrip(int delta);
void matchImagesToDives(QStringList fileNames);
void loadImageFromURL(QUrl url);
bool eventFilter(QObject *, QEvent *) override;
void mouseDoubleClickEvent(QMouseEvent *event) override;
void contextMenuEvent(QContextMenuEvent *event) override;
void currentChanged(const QModelIndex &current, const QModelIndex &previous) override;
QNetworkAccessManager manager;
bool programmaticalSelectionChange;
};
#endif // DIVELISTVIEW_H