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