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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2007-12-08
* Description : a widget to display date and time statistics of pictures
*
* Copyright (C) 2007-2008 by Gilles Caulier <caulier dot gilles at gmail dot com>
*
* This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General
* Public License as published by the Free Software Foundation;
* either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* ============================================================ */
#ifndef TIMELINEWIDGET_H
#define TIMELINEWIDGET_H
// TQt includes.
#include <tqstring.h>
#include <tqwidget.h>
#include <tqdatetime.h>
// Local includes.
#include "ddebug.h"
namespace Digikam
{
typedef TQPair<TQDateTime, TQDateTime> DateRange; // Range of a contigue dates selection <start date, end date>.
typedef TQValueList<DateRange> DateRangeList; // List of dates range selected.
class TimeLineWidgetPriv;
class TimeLineWidget : public TQWidget
{
Q_OBJECT
public:
enum TimeUnit
{
Day = 0,
Week,
Month,
Year
};
enum SelectionMode
{
Unselected=0, // No selection.
FuzzySelection, // Partially selected.
Selected // Fully selected.
};
enum ScaleMode
{
LinScale=0, // Linear scale.
LogScale // Logarithmic scale.
};
public:
TimeLineWidget(TQWidget *parent=0);
~TimeLineWidget();
void setTimeUnit(TimeUnit timeUnit);
TimeUnit timeUnit() const;
void setScaleMode(ScaleMode scaleMode);
ScaleMode scaleMode() const;
void setCursorDateTime(const TQDateTime& dateTime);
TQDateTime cursorDateTime() const;
int cursorInfo(TQString& infoDate);
/** Return a list of Date-Range based on selection performed on days-map */
DateRangeList selectedDateRange(int& totalCount);
void setSelectedDateRange(const DateRangeList& list);
int totalIndex();
int indexForRefDateTime();
int indexForCursorDateTime();
void setCurrentIndex(int index);
signals:
void signalCursorPositionChanged();
void signalSelectionChanged();
void signalRefDateTimeChanged();
void signalDateMapChanged();
public slots:
void slotDatesMap(const TQMap<TQDateTime, int>&);
void slotPrevious();
void slotNext();
void slotBackward();
void slotForward();
void slotResetSelection();
private slots:
void slotThemeChanged();
private:
TQDateTime prevDateTime(const TQDateTime& dt);
TQDateTime nextDateTime(const TQDateTime& dt);
int maxCount();
int indexForDateTime(const TQDateTime& date);
int statForDateTime(const TQDateTime& dt, SelectionMode& selected);
void setRefDateTime(const TQDateTime& dateTime);
void updatePixmap();
void paintEvent(TQPaintEvent*);
void resizeEvent(TQResizeEvent*);
void wheelEvent(TQWheelEvent*);
void mousePressEvent(TQMouseEvent*);
void mouseMoveEvent(TQMouseEvent*);
void mouseReleaseEvent(TQMouseEvent*);
TQDateTime dateTimeForPoint(const TQPoint& pt, bool &isOnSelectionArea);
TQDateTime firstDayOfWeek(int year, int weekNumber);
void resetSelection();
void setDateTimeSelected(const TQDateTime& dt, SelectionMode selected);
void setDaysRangeSelection(const TQDateTime dts, const TQDateTime dte, SelectionMode selected);
SelectionMode checkSelectionForDaysRange(const TQDateTime dts, const TQDateTime dte);
void updateWeekSelection(const TQDateTime dts, const TQDateTime dte);
void updateMonthSelection(const TQDateTime dts, const TQDateTime dte);
void updateYearSelection(const TQDateTime dts, const TQDateTime dte);
void updateAllSelection();
private:
TimeLineWidgetPriv* d;
};
} // NameSpace Digikam
#endif // TIMELINEWIDGET_H
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