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PVLine.qo.h
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00001 //# pvline.h: base class for statistical regions
00002 //# Copyright (C) 2011
00003 //# Associated Universities, Inc. Washington DC, USA.
00004 //#
00005 //# This library is free software; you can redistribute it and/or modify it
00006 //# under the terms of the GNU Library General Public License as published by
00007 //# the Free Software Foundation; either version 2 of the License, or (at your
00008 //# option) any later version.
00009 //#
00010 //# This library is distributed in the hope that it will be useful, but WITHOUT
00011 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00012 //# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
00013 //# License for more details.
00014 //#
00015 //# You should have received a copy of the GNU Library General Public License
00016 //# along with this library; if not, write to the Free Software Foundation,
00017 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
00018 //#
00019 //# Correspondence concerning AIPS++ should be addressed as follows:
00020 //#        Internet email: aips2-request@nrao.edu.
00021 //#        Postal address: AIPS++ Project Office
00022 //#                        National Radio Astronomy Observatory
00023 //#                        520 Edgemont Road
00024 //#                        Charlottesville, VA 22903-2475 USA
00025 //#
00026 //# $Id$
00027 
00028 
00029 #ifndef REGION_PVLINE_H_
00030 #define REGION_PVLINE_H_
00031 
00032 #include <display/region/Region.qo.h>
00033 #include <display/region/QtRegionSource.qo.h>
00034 #include <display/QtViewer/QtDisplayPanelGui.qo.h>
00035 #include <casa/BasicSL/String.h>
00036 #include <list>
00037 
00038 namespace casa {
00039 
00040         class PanelDisplay;
00041         class AnnotationBase;
00042         class MSAsRaster;
00043         class DisplayData;
00044 
00045         namespace viewer {
00046 
00047                 // carry over from QtRegion... hopefully, removed soon...
00048                 class QtRegionSourceKernel;
00049 
00050                 // All regions are specified in "linear coordinates", not "pixel coordinates". This is necessary
00051                 // because "linear coordinates" scale with zooming whereas "pixel coordinates" do not. Unfortunately,
00052                 // this means that coordinate transformation is required each time the region is drawn.
00053                 class PVLine : public Region {
00054                         Q_OBJECT
00055                 public:
00056                         ~PVLine( );
00057                         PVLine( WorldCanvas *wc, QtRegionDock *d, double x1, double y1, double x2, double y2,
00058                                 bool hold_signals=false );
00059 
00060                         // carry over from QtRegion... hopefully, removed soon...
00061                         PVLine( QtRegionSourceKernel *rs, WorldCanvas *wc, double x1, double y1, double x2, double y2,
00062                                 bool hold_signals=false);
00063 
00064                         bool clickWithin( double x, double y ) const
00065                         {       double blc_x, blc_y, trc_x, trc_y;
00066                                 boundingRectangle( blc_x, blc_y, trc_x, trc_y );
00067                                 return x > blc_x && x < trc_x && y > blc_y && y < trc_y;
00068                         }
00069 
00070                         int clickHandle( double x, double y ) const;
00071 
00072                         bool doubleClick( double /*x*/, double /*y*/ );
00073 
00074                         // returns point state (Region::PointLocation)
00075                         region::PointInfo checkPoint( double x, double y ) const;
00076 
00077                         // returns mouse state (Region::MouseState)
00078                         unsigned int mouseMovement( double x, double y, bool other_selected );
00079 
00080                         // for rectangles, resizing can change the handle...
00081                         // for rectangles, moving a handle is resizing...
00082                         int moveHandle( int handle, double x, double y );
00083                         void move( double dx, double dy );
00084 
00085                         void resize( double /*width_delta*/, double /*height_delta*/ );
00086                         bool valid_translation( double dx, double dy, double width_delta, double height_delta );
00087 
00088                         void linearCenter( double &x, double &y ) const;
00089                         void pixelCenter( double &x, double &y ) const;
00090 
00091                         AnnotationBase *annotation( ) const;
00092 
00093                         virtual bool flag( MSAsRaster *msar );
00094 
00095                         // in "linear" coordinates...
00096                         void boundingRectangle( double &blcx, double &blcy, double &trcx, double &trcy ) const;
00097 
00098                         void output( ds9writer &out ) const;
00099 
00100                         // fetch region type...
00101                         region::RegionTypes type( ) const {
00102                                 return region::PVLineRegion;
00103                         }
00104 
00105                 public slots:
00106                         void createPVImage(const std::string&,const std::string&,int);
00107                         void cursorBoundary(QtDisplayPanel::CursorBoundaryCondition);
00108                         void cursorPosition(viewer::Position);
00109 
00110                 private slots:
00111                         void dpg_deleted(QObject*);
00112 
00113 
00114 
00115                 protected:
00116 
00117                         PVLine( const std::string &name, WorldCanvas *wc, QtRegionDock *d, double x1,
00118                                 double y1, double x2, double y2, bool hold_signals=false,
00119                                 QtMouseToolNames::PointRegionSymbols sym=QtMouseToolNames::SYM_UNKNOWN );
00120 
00121                         RegionInfo::stats_t *get_ms_stats( MSAsRaster *msar, double x, double y );
00122                         void generate_nonimage_statistics( DisplayData*, std::list<RegionInfo> * );
00123                         std::list<std::tr1::shared_ptr<RegionInfo> > *generate_dds_centers( );
00124                         ImageRegion *get_image_region( DisplayData* ) const;
00125                         RegionInfo *newInfoObject( ImageInterface<Float> *image, PrincipalAxesDD * );
00126 
00127                         virtual void fetch_region_details( region::RegionTypes &type, std::vector<std::pair<int,int> > &pixel_pts,
00128                                                            std::vector<std::pair<double,double> > &world_pts ) const;
00129 
00130                         void drawRegion( bool );
00131                         /* void drawHandles( ); */
00132 
00133                         /* virtual void setCenter(double &x, double &y, double &deltx, double &delty) {center_x_=x; center_y_=y; center_delta_x_=deltx; center_delta_y_=delty;}; */
00134 
00135                         double pt1_x, pt1_y;
00136                         double pt2_x, pt2_y;
00137                         /* double center_x, center_y; */
00138                         double handle_delta_x, handle_delta_y;
00139 
00140                         // one display_element is created for each image created from this PVLine...
00141                         // the resulting display list may be useful in the future...
00142                         class display_element {
00143                         public:
00144                                 display_element( const std::string &n ) : name_(n), path_("") { }
00145                                 std::string name( ) {
00146                                         return name_;
00147                                 }
00148                                 std::string outputPath( );
00149                         private:
00150                                 std::string name_;
00151                                 std::string path_;
00152                         };
00153 
00154                         typedef std::list<display_element> display_list_t;
00155                         display_list_t display_list;
00156 
00157                         ImageInterface<Float> *generatePVImage( ImageInterface<Float> *, std::string, int, bool );
00158 
00159                 private:
00160                         QtDisplayPanelGui *sub_dpg;
00161                         bool within_vertex_handle( double x, double y ) const;
00162                         unsigned int check_handle( double x, double y ) const;
00163                         std::string worldCoordinateStrings( double x, double y );
00164                         bool draw_cursor_point;
00165                         double cursor_point_x, cursor_point_y;
00166                 };
00167         }
00168 }
00169 
00170 #endif