QtiPlot  0.9.8.2
FrameWidget.h
Go to the documentation of this file.
00001 /***************************************************************************
00002     File                 : FrameWidget.h
00003     Project              : QtiPlot
00004     --------------------------------------------------------------------
00005     Copyright            : (C) 2008 by Ion Vasilief
00006     Email (use @ for *)  : ion_vasilief*yahoo.fr
00007     Description          : Base class for tool widgets in 2D plots
00008 
00009  ***************************************************************************/
00010 
00011 /***************************************************************************
00012  *                                                                         *
00013  *  This program is free software; you can redistribute it and/or modify   *
00014  *  it under the terms of the GNU General Public License as published by   *
00015  *  the Free Software Foundation; either version 2 of the License, or      *
00016  *  (at your option) any later version.                                    *
00017  *                                                                         *
00018  *  This program is distributed in the hope that it will be useful,        *
00019  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
00020  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
00021  *  GNU General Public License for more details.                           *
00022  *                                                                         *
00023  *   You should have received a copy of the GNU General Public License     *
00024  *   along with this program; if not, write to the Free Software           *
00025  *   Foundation, Inc., 51 Franklin Street, Fifth Floor,                    *
00026  *   Boston, MA  02110-1301  USA                                           *
00027  *                                                                         *
00028  ***************************************************************************/
00029 #ifndef FRAMEWIDGET_H
00030 #define FRAMEWIDGET_H
00031 
00032 #include <QWidget>
00033 #include <QPen>
00034 #include <qwt_plot.h>
00035 
00036 class Graph;
00037 
00038 class FrameWidget: public QWidget
00039 {
00040     Q_OBJECT
00041 
00042 public:
00044     enum Unit{Inch, Millimeter, Centimeter, Point, Pixel, Scale};
00045 
00046     FrameWidget(Graph *);
00047 
00048     Graph *plot(){return d_plot;};
00049 
00051     enum FrameStyle{None = 0, Line = 1, Shadow = 2};
00053     enum AttachPolicy {Page, Scales};
00054 
00056     double xValue(){return d_x;};
00058     double yValue(){return d_y;};
00060     void setOriginCoord(double x, double y);
00062     void setOrigin(int x, int y){move(QPoint(x, y));};
00063     void move(const QPoint& pos);
00064 
00066     QRectF boundingRect() const;
00068     void setCoordinates(double left, double top, double right, double bottom);
00070     void setSize(int w, int h){setSize(QSize(w, h));};
00072     void setSize(const QSize& newSize);
00074     void setRect(int x, int y, int w, int h);
00075 
00076     double right(){return d_x_right;};
00077     double bottom(){return d_y_bottom;};
00078 
00079     static double xIn(QWidget *w, Unit unit);
00080     static double yIn(QWidget *w, Unit unit);
00081     static double widthIn(QWidget *w, Unit unit);
00082     static double heightIn(QWidget *w, Unit unit);
00084     static void setRect(QWidget *, double x, double y, double w, double h, Unit unit = Pixel);
00085 
00086     int frameStyle(){return d_frame;};
00087     void setFrameStyle(int style);
00088 
00089     QPen framePen(){return d_frame_pen;};
00090     void setFramePen(const QPen& p){d_frame_pen = p;};
00091 
00092     Qt::PenStyle frameLineStyle(){return d_frame_pen.style();};
00093     void setFrameLineStyle(const Qt::PenStyle& s){d_frame_pen.setStyle(s);};
00094 
00095     QColor frameColor(){return d_frame_pen.color();};
00096     void setFrameColor(const QColor& c){d_frame_pen.setColor(c);};
00097 
00098     double frameWidth(){return d_frame_pen.widthF();};
00099     void setFrameWidth(double w){d_frame_pen.setWidthF(w);};
00100 
00101     QColor backgroundColor(){return palette().color(QPalette::Window);};
00102     void setBackgroundColor(const QColor& c){QPalette pal = palette(); pal.setColor(QPalette::Window, c); setPalette(pal);};
00103 
00104     QBrush brush(){return d_brush;};
00105     void setBrush(const QBrush& b){d_brush = b;};
00106 
00107     int angle(){return d_angle;};
00108     void setAngle(int ang){d_angle = ang;};
00109 
00110     void showContextMenu(){emit showMenu();};
00111     void showPropertiesDialog(){emit showDialog();};
00112 
00113     virtual void print(QPainter *p, const QwtScaleMap map[QwtPlot::axisCnt]);
00114     void resetOrigin(){setOriginCoord(d_x, d_y);};
00115     void resetCoordinates(){setCoordinates(d_x, d_y, d_x_right, d_y_bottom);};
00116 
00117     virtual void updateCoordinates();
00118     virtual QString saveToString();
00119 
00120     void setAttachPolicy(AttachPolicy attachTo);
00121     AttachPolicy attachPolicy(){return d_attach_policy;};
00122 
00123     bool isOnTop(){return d_on_top;};
00124     void setOnTop(bool on = true);
00125 
00126     void mousePressEvent(QMouseEvent *);
00127 
00128 signals:
00129     void showDialog();
00130     void showMenu();
00131     void changedCoordinates(const QRectF&);
00132 
00133 protected:
00135     double calculateXValue();
00137     double calculateYValue();
00139     double calculateRightValue();
00141     double calculateBottomValue();
00142 
00143     virtual void drawFrame(QPainter *p, const QRect& rect);
00144     virtual void paintEvent(QPaintEvent *e);
00145     void contextMenuEvent(QContextMenuEvent * ){emit showMenu();};
00146 
00148     Graph *d_plot;
00149 
00151     int d_frame;
00153     QPen d_frame_pen;
00155     QBrush d_brush;
00156 
00158     int d_angle;
00159 
00161     double d_x;
00163     double d_y;
00165     double d_x_right;
00167     double d_y_bottom;
00169     int d_shadow_width;
00171     AttachPolicy d_attach_policy;
00172     bool d_on_top;
00173 };
00174 
00175 #endif