QtDrawCanvas.qo.h

Go to the documentation of this file.

//# Copyright (C) 2005
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library 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 Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//#        Internet email: aips2-request@nrao.edu.
//#        Postal address: AIPS++ Project Office
//#                        National Radio Astronomy Observatory
//#                        520 Edgemont Road
//#                        Charlottesville, VA 22903-2475 USA
//#


#ifndef TQDRAWCANVAS_H
#define TQDRAWCANVAS_H

#include <casa/aips.h>
#include <casa/BasicSL/String.h>
#include <casa/Containers/Record.h>
#include <casa/Arrays/Array.h>
#include <casa/Arrays/ArrayMath.h>
#include <casa/Arrays/Vector.h>
#include <casa/Arrays/Matrix.h>
#include <casa/Inputs/Input.h>
#include <casa/Arrays/IPosition.h>

#include <display/QtPlotter/QtDrawSettings.h>

#include <graphics/X11/X_enter.h>
#include <QDir>
#include <QColor>
#include <QHash>
#include <QWidget>
#include <QMouseEvent>
#include <QToolButton>
#include <QDialog>
#include <QPixmap>
#include <QVBoxLayout>
#include <QLabel>
#include <map>
#include <vector>
#include <graphics/X11/X_exit.h>

namespace casa {

        typedef std::vector<double> CurveData;

        class GraphLabel {
        public:
                QString text;
                QString fontName;
                int fontSize;
                QColor color;
                GraphLabel() : text(""), fontName("Helvetica [Cronyx]"),
                        fontSize(12), color(Qt::blue) {}
        };

        class QtDrawCanvas : public QWidget {
                Q_OBJECT
        public:
                enum {LINE = 0, POINT, FPOINT, CIRCLE, FCIRCLE,
                      RECT, FRECT, DIM, FDIM,
                      PLUS, FPLUS, CROSS, FCROSS,
                      TRIGU, FTRIGU, TRIGD, FTRIGD,
                      TRIGL, FTRIGL, TRIGR, FTRIGR,
                      SAND, FSAND, WING, FWING,
                      BEAM, FBEAM, BED, FBED,
                      HIST, FHIST
                     };
                QtDrawCanvas(QWidget *parent = 0);

                void setPlotSettings(const QtDrawSettings &settings);
                void setCurveData(int id, const CurveData data,
                                  int tp = 0, int cl = 0);
                void clearCurve(int id);
                void setDataRange();
                void setImageMode(bool);
                void setPixmap(const QImage&);
                QPixmap* graph();
                void drawBackBuffer(QPainter *);
                void plotPolyLines(QString);

                //ln = 0, new chart
                //ln < 0, remove trace
                //ln > 0, append trace if ln exists, otherwise add trace
                //tp = 0, continous line
                //tp > 0, discrete symbols
                //tp < 0, line and symbols
                //cl, color value range from 0 up
                void plotPolyLine(const Vector<Int>&,
                                  const Vector<Int>&,
                                  int ln = 0, int tp = 0, int cl = 0);
                void plotPolyLine(const Vector<Float> &x,
                                  const Vector<Float> &y,
                                  int ln = 0, int tp = 0, int cl = 0);
                void plotPolyLine(const Vector<Double>&,
                                  const Vector<Double>&,
                                  int ln = 0, int tp = 0, int cl = 0);

                //Each row is a trace
                //ln = 0, new chart
                //ln < 0, remove traces
                //ln > 0, append traces from (ln)th, add if not exists
                //tp < 0, same shape for all traces
                //tp = 0, continuous lines
                //tp > 0, different discrete shape for each trace
                //cl > 0, different color for each trace
                //cl <= 0, same color for all traces
                void plotPolyLine(const Matrix<Int> &verts,
                                  int ln = 0, int tp = 0, int cl = 0);
                void plotPolyLine(const Matrix<Float> &verts,
                                  int ln = 0, int tp = 0, int cl = 0);
                void plotPolyLine(const Matrix<Double> &verts,
                                  int ln = 0, int tp = 0, int cl = 0);

                // template<class T>
                void drawImage(const Matrix<uInt> &data, Matrix<uInt> *mask);
                void drawImage(const Matrix<uInt> &data);
                //void setMarkMode(bool);

                QColor getLinearColor(double);
                QSize minimumSizeHint() const;
                QSize sizeHint() const;
                ~QtDrawCanvas();
                void increaseCurZoom();
                int getCurZoom();
                int getZoomStackSize();
                int getCurLine();
                int getTotalLines();

                void setTitle(const QString &text,
                              int fontSize = 12, int color = 0,
                              const QString &font = "Helvetica [Cronyx]");
                void setXLabel(const QString &text,
                               int fontSize = 10, int color = 1,
                               const QString &font = "Helvetica [Cronyx]");
                void setYLabel(const QString &text,
                               int fontSize = 10, int color = 2,
                               const QString &font = "Helvetica [Cronyx]");
                void setWelcome(const QString &text, int fontSize = 14,
                                int color = 1,
                                const QString &font = "Helvetica [Cronyx]");

        public slots:
                void zoomIn();
                void zoomOut();
                void markPrev();
                void markNext();

        signals:
                void zoomChanged();
                void gotFocus();

        protected:
                void paintEvent(QPaintEvent *event);
                void resizeEvent(QResizeEvent *event);
                void mousePressEvent(QMouseEvent *event);
                void mouseMoveEvent(QMouseEvent *event);
                void mouseReleaseEvent(QMouseEvent *event);
                void keyPressEvent(QKeyEvent *event);
                void wheelEvent(QWheelEvent *event);
                void focusInEvent(QFocusEvent *event);

        private:
                void updateRubberBandRegion();
                void refreshPixmap();
                void drawGrid(QPainter *painter);
                void drawTicks(QPainter *painter);
                void drawLabels(QPainter *painter);
                void drawWelcome(QPainter *painter);
                void drawCurves(QPainter *painter);
                void drawRects(QPainter *painter);

                enum { Margin = 60 };

                GraphLabel title;
                GraphLabel xLabel;
                GraphLabel yLabel;
                GraphLabel welcome;

                std::map<int, CurveData> curveMap;
                std::map<int, int> typeMap;
                std::map<int, int> colorMap;
                int curLine;

                std::vector<QtDrawSettings> zoomStack;
                int curZoom;

                std::map<int, CurveData> markerStack;
                int curMarker;

                QRect rubberBandRect;
                bool rubberBandIsShown;

                bool imageMode;
                bool markMode;

                QPixmap pixmap;
                QPixmap backBuffer;
                Matrix<uInt> *pMask;

        };

}
#endif