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Diffstat (limited to 'plugins/stats/ChartDrawer.h')
| -rw-r--r-- | plugins/stats/ChartDrawer.h | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/plugins/stats/ChartDrawer.h b/plugins/stats/ChartDrawer.h new file mode 100644 index 0000000..741240e --- /dev/null +++ b/plugins/stats/ChartDrawer.h @@ -0,0 +1,281 @@ +/*************************************************************************** + * Copyright © 2007 by Krzysztof Kundzicz * + * athantor@gmail.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 of the License, 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. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ + +#ifndef CHARTDRAWER_H_ +#define CHARTDRAWER_H_ + +#include <qwidget.h> +#include <qpainter.h> +#include <qstring.h> +#include <qtooltip.h> +#include <qmime.h> +#include <qimage.h> + +#include <klocale.h> + +#include <vector> +#include <cmath> +#include <algorithm> //fill + +#include "ChartDrawerData.h" + +namespace kt { + +/** +\brief Widget for drawing line charts +\author Krzysztof Kundzicz <athantor@gmail.com> +*/ +class ChartDrawer : public QWidget +{ + Q_OBJECT + + public: + ///Type used as widget size unit + typedef uint32_t wgtsize_t; + ///Type used as unit in chart + typedef int64_t wgtunit_t; + /** + \brief Type used for data storing + \sa ChartDrawerData + */ + typedef std::vector<ChartDrawerData> val_t; + ///Determines max mode + enum MaxMode { MaxModeTop, MaxModeExact }; + + private: + ///Maximum X value + wgtsize_t mXMax; + ///Maximum Y value + wgtsize_t mYMax; + ///Auto maximum setting + bool mAutoMax; + ///Chart data + val_t mEls; + ///Name of the chart unit + QString mUnitName; + ///Mark max + std::vector<bool> mMarkMax; + ///Max mode + MaxMode mMMode; + + ///Paint event handler + void paintEvent ( QPaintEvent * ); + /** + \brief Draws chart's frame + \param rPnt Painter on which things will be drawn + */ + void DrawFrame(QPainter &rPnt); + /** + \brief Draws chart's scale + \param rPnt Painter on which things will be drawn + */ + void DrawScale(QPainter &rPnt); + /** + \brief Draws chart + \param rPnt Painter on which things will be drawn + */ + void DrawChart(QPainter &rPnt); + + /** + \brief Gets distance between two values on OY + \return Distance + */ + inline wgtsize_t GetYScale() const; + + /** + \brief Translates widget Y coord to cartesian + \param y Coord + \return Coord + */ + inline wgtunit_t TrY(const wgtunit_t y) const; + /** + \brief Returns charts height + \return Height + + Return only height of the chart's inside the frame — not the whole widget's + */ + inline wgtunit_t height() const; + /** + \brief Returns charts width + \return Width + + Return only width of the chart's inside the frame — not the whole widget's + */ + inline wgtunit_t width() const; + + /** + \brief Finds screen X coord on the widget + \param x Coord + \return Screen coord + \warning Thera are rounding errors + */ + inline wgtunit_t FindXScreenCoords(const double x) const; + /** + \brief Finds screen Y coord on the widget + \param y Coord + \return Screen coord + \warning Thera are rounding errors + */ + inline wgtunit_t FindYScreenCoords(const double y) const; + + ///Sets tooltip with legend + void MakeLegendTooltip(); + + public: + /** + \brief Widget's constructor + \param p Parent + \param x_max Maximum X size + \param y_max Maximum Y size + \param autom Whether athomagically set the maximum Y size + \param uname Unit name + */ + ChartDrawer(QWidget *p = 0, wgtsize_t x_max = 2, wgtsize_t y_max = 1, bool autom = true, const QString & uname = "KB/s"); + ~ChartDrawer(); + + /** + \brief Gets maximum X + \return Maximum X + */ + wgtsize_t GetXMax() const; + /** + \brief Gets maximum Y + \return Maximum Y + */ + wgtsize_t GetYMax() const; + + /** + \brief Sets the units name + \param rN Name + + \note It'l be drawn on the chart + */ + void SetUnitName(const QString & rN); + + /** + \brief Gets unit name + \return name + */ + QString GetUnitName() const; + /** + \brief Doubleclick handler + \param evt Mouse event + */ + void mouseDoubleClickEvent ( QMouseEvent * evt ); + + /** + \brief Gets mode of OY axis maximum drawing + \return mode + */ + MaxMode GetMaxMode() const; + + + public slots: + /** + \brief Adds value to given dataset + \param idx Dataset index + \param val Value to add + \param update Whether update widget after adding + */ + void AddValue(const size_t idx, const double val, bool update = true); + /** + \brief Adds dataset + \param Cdd Dataset + \param max Whether mark maximum of this dataset + */ + void AddValues(ChartDrawerData Cdd, const bool max = true); + /** + \brief Adds dataset + \param Cdd Dataset + \param idx Where + \param max Whether mark maximum of this dataset + */ + void AddValues(ChartDrawerData Cdd, const size_t idx, const bool max = true); + /** + \brief Adds empty dataset + \param rN Set's data name + \param max Whether mark maximum of this dataset + */ + void AddValuesCnt(const QString & rN, const bool max = true); + /** + \brief Adds empty dataset + \param rP Pen that will be used to drawing + \param rN Dataset name + \param max Whether mark maximum of this dataset + */ + void AddValuesCnt(const QPen & rP, const QString & rN, const bool max = true ); + + /** + \brief Removes dataset + \param idx Dataset index + */ + void RemoveValuesCnt(const size_t idx); + /** + \brief Zeroes values + \param idx Dataset index + */ + void Zero(const size_t idx); + + ///Finds and sets maximum + void FindSetMax(); + + /** + \brief Toggles marking of the maximum Y value on given dataset + \param at dataset + \param e Toggle? + */ + void EnableMaxDrawAt(const size_t, const bool); + /** + \brief Toggles automatic max Y scale settin + \param a Toggle? + */ + void EnableAutoMax(bool a); + + /** + \brief Sets maximum X + \param x X size + */ + void SetXMax(const wgtsize_t x); + /** + \brief Sets maximum Y + \param y Y size + */ + void SetYMax(const wgtsize_t x); + + /** + \brief Sets mode of max of OY axis + \param mm Mode + */ + void SetMaxMode(const MaxMode mm); + + + signals: + /** + \brief Emited when widget is doubleclicked + \param evt Mouse event + */ + void DoubleClicked(QMouseEvent * evt); + +}; + +} + +#endif + |