subsurface/qt-models/filtermodels.h
Berthold Stoeger b6bf57a13b Introduce negate-toggle buttons to filter lists
Introduce toggle buttons which mean "filter all dives except
those fulfilling the selected criteria".

The old code used to check for rowCount() == 0. This should never happen,
because there is always a row "empty field". This check was moved into
the preamble of the functions to seperate it from the actual logic.

Fixes #435

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2017-12-26 13:08:49 -08:00

115 lines
2.9 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#ifndef FILTERMODELS_H
#define FILTERMODELS_H
#include <QStringListModel>
#include <QSortFilterProxyModel>
#include <stdint.h>
#include <vector>
class FilterModelBase : public QStringListModel {
Q_OBJECT
public:
virtual bool doFilter(struct dive *d, QModelIndex &index0, QAbstractItemModel *sourceModel) const = 0;
void clearFilter();
void selectAll();
void invertSelection();
std::vector<char> checkState;
bool anyChecked;
bool negate;
public
slots:
void setNegate(bool negate);
protected:
explicit FilterModelBase(QObject *parent = 0);
void updateList(const QStringList &new_list);
virtual int countDives(const char *) const = 0;
private:
Qt::ItemFlags flags(const QModelIndex &index) const;
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
};
class TagFilterModel : public FilterModelBase {
Q_OBJECT
public:
static TagFilterModel *instance();
bool doFilter(struct dive *d, QModelIndex &index0, QAbstractItemModel *sourceModel) const;
public
slots:
void repopulate();
private:
explicit TagFilterModel(QObject *parent = 0);
int countDives(const char *) const;
};
class BuddyFilterModel : public FilterModelBase {
Q_OBJECT
public:
static BuddyFilterModel *instance();
bool doFilter(struct dive *d, QModelIndex &index0, QAbstractItemModel *sourceModel) const;
public
slots:
void repopulate();
private:
explicit BuddyFilterModel(QObject *parent = 0);
int countDives(const char *) const;
};
class LocationFilterModel : public FilterModelBase {
Q_OBJECT
public:
static LocationFilterModel *instance();
bool doFilter(struct dive *d, QModelIndex &index0, QAbstractItemModel *sourceModel) const;
public
slots:
void repopulate();
void changeName(const QString &oldName, const QString &newName);
void addName(const QString &newName);
private:
explicit LocationFilterModel(QObject *parent = 0);
int countDives(const char *) const;
};
class SuitsFilterModel : public FilterModelBase {
Q_OBJECT
public:
static SuitsFilterModel *instance();
bool doFilter(struct dive *d, QModelIndex &index0, QAbstractItemModel *sourceModel) const;
public
slots:
void repopulate();
private:
explicit SuitsFilterModel(QObject *parent = 0);
int countDives(const char *) const;
};
class MultiFilterSortModel : public QSortFilterProxyModel {
Q_OBJECT
public:
static MultiFilterSortModel *instance();
virtual bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const;
void addFilterModel(FilterModelBase *model);
void removeFilterModel(FilterModelBase *model);
int divesDisplayed;
public
slots:
void myInvalidate();
void clearFilter();
void startFilterDiveSite(uint32_t uuid);
void stopFilterDiveSite();
signals:
void filterFinished();
private:
MultiFilterSortModel(QObject *parent = 0);
QList<FilterModelBase *> models;
bool justCleared;
struct dive_site *curr_dive_site;
};
#endif