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