subsurface/qt-models/filtermodels.h
Berthold Stoeger 9b90c461a2 Filter: Make FilterModelBase a proper Qt model (mostly)
Since FilterModelBase now contains complex data (counts and checked),
we might just as well make it a full model and keep track of
the name as well. I.e. do not derive from QStringListModel but from
QAbstractListModel and add the name to the item structure.

Implement proper reset / add / rename semantics. This is overkill at the
moment, as after all any modification the model will be reset, but
ultimately it will allow us to be smarter and only update rows when
needed.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-08-31 07:48:23 -07:00

128 lines
3 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#ifndef FILTERMODELS_H
#define FILTERMODELS_H
#include <QStringListModel>
#include <QSortFilterProxyModel>
#include <stdint.h>
#include <vector>
struct dive;
class FilterModelBase : public QAbstractListModel {
Q_OBJECT
private:
int findInsertionIndex(const QString &name);
protected:
struct Item {
QString name;
bool checked;
int count;
};
std::vector<Item> items;
int indexOf(const QString &name) const;
void addItem(const QString &name, bool checked, int count);
int rowCount(const QModelIndex &parent = QModelIndex()) const override;
public:
virtual bool doFilter(const dive *d) const = 0;
void clearFilter();
void selectAll();
void invertSelection();
bool anyChecked;
bool negate;
public
slots:
void setNegate(bool negate);
void changeName(const QString &oldName, const QString &newName);
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(const dive *d) 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(const dive *d) 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(const dive *d) const;
public
slots:
void repopulate();
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(const dive *d) 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();
bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const;
void addFilterModel(FilterModelBase *model);
void removeFilterModel(FilterModelBase *model);
bool showDive(const struct dive *d) const;
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;
struct dive_site *curr_dive_site;
};
#endif