subsurface/qt-models/filtermodels.h
Berthold Stoeger 66aeaddd0f Filter: cache number of dives fulfilling filter rules
Currently, in FilterModelBase::data() the number of dives is recalculated.
This happens for every mouse-over event!

Calculate the number of dives only on recalculation and store the count
in the items-struct.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-08-28 05:03:59 -07:00

122 lines
2.7 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 QStringListModel {
Q_OBJECT
protected:
struct Item {
bool checked;
int count;
};
std::vector<Item> items;
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);
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 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(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