curvewindow.h

//
//  
//    The Laxkit, a windowing toolkit
//    Please consult http://laxkit.sourceforge.net about where to send any
//    correspondence about this software.
//
//    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    Copyright (C) 2013 by Tom Lechner
//
#ifndef _LAX_CURVEWINDOW_H
#define _LAX_CURVEWINDOW_H

#include <lax/anxapp.h>
#include <lax/rectangles.h>
#include <lax/buttondowninfo.h>

namespace Laxkit {

    

class CurveInfo : public anObject, public LaxFiles::DumpUtility
{
  private:
    void base_init();
    
  public:
    enum CurveTypes {
        Linear,
        Autosmooth,
        Bezier
    };

    double xmin, xmax;
    double ymin, ymax;
    char *xlabel, *ylabel;
    char *title;
    CurveTypes curvetype;

    int numsamples, lookup_min, lookup_max;
    int *lookup;

    NumStack<flatpoint> points;
    NumStack<flatpoint> fauxpoints;

    CurveInfo();
    CurveInfo(const char *ntitle,
              const char *xl, double nxmin, double nxmax,
              const char *yl, double nymin, double nymax);
    virtual ~CurveInfo();
    virtual const char *whattype() { return "CurveInfo"; }
    virtual void SetXBounds(double nxmin, double nxmax);
    virtual void SetYBounds(double nymin, double nymax);
    virtual void SetTitle(const char *ntitle);
    virtual double f(double x);
    virtual double f_linear(double x);
    virtual double f_autosmooth(double x);
    virtual double f_bezier(double x);
    virtual flatpoint MapUnitPoint(flatpoint p);
    virtual int AddPoint(double x,double y);
    virtual int MovePoint(int index, double x,double y);
    virtual void SetSinusoidal(int samples);
    virtual void Reset();

    virtual void MakeFakeCurve();
    virtual int MakeLookupTable(int *table,int numentries, int minvalue, int maxvalue);
    virtual void RefreshLookup();
    virtual void RefreshLookup(int nsamples, int nmin, int nmax);
    virtual void LookupDump(const char *label,FILE *f);

     //serializing aids
    virtual void dump_out(FILE *f,int indent,int what,anObject *context);
    virtual LaxFiles::Attribute *dump_out_atts(LaxFiles::Attribute *att,int what,anObject *context);
    virtual void dump_in_atts(LaxFiles::Attribute *att,int flag,anObject *context);
};


enum CurveWindowStyles {
    CURVE_Show_Ranges=(1<<15),
};

class CurveWindow : public anXWindow
{
 protected:
    LaxFont *smallnumbers;
    IntRectangle rect;
    unsigned int curve_win_style;
    int firsttime;
    CurveInfo *curveinfo;
    ButtonDownInfo buttondown;

    int show_label_ranges;
    int show_labels;
    int always_refresh_lookup;
    int highlighteditable;

    flatpoint lastpoint;
    int draglimbo;
    flatpoint ClampPoint(flatpoint p, int pp);

    int *histogram; //in range [0..1000]
    int hist_n;

 public:
    enum CurveWindowEditable {
        YMax  =(1<<0),
        YMin  =(1<<1),
        XMax  =(1<<2),
        XMin  =(1<<3),
        YUnits=(1<<4),
        XUnits=(1<<5)
    };

    int padouter, padinner;
    unsigned int curve_color;
    unsigned int graph_color;
    unsigned int editable; //mask of enum curvewindoweditable
    
    CurveWindow(anXWindow *parnt,const char *nname,const char *ntitle,unsigned long nstyle,
                        int xx,int yy,int ww,int hh,int brder,
                        anXWindow *prev, unsigned long nowner, const char *nsend,
                        const char *nctitle=NULL,
                        const char *xl=NULL, double nxmin=0, double nxmax=1,
                        const char *yl=NULL, double nymin=0, double nymax=1);
    virtual ~CurveWindow();
    virtual const char *whattype() { return "CurveWindow"; }
    //virtual int init();
    virtual void Refresh();
    virtual int LBDown(int x,int y,unsigned int state,int count,const LaxMouse *d);
    virtual int LBUp(int x,int y,unsigned int state,const LaxMouse *d);
    //virtual int MBDown(int x,int y,unsigned int state,int count,const LaxMouse *d);
    //virtual int MBUp(int x,int y,unsigned int state,const LaxMouse *d);
    //virtual int RBDown(int x,int y,unsigned int state,int count,const LaxMouse *d);
    //virtual int RBUp(int x,int y,unsigned int state,const LaxMouse *d);
    virtual int WheelUp(int x,int y,unsigned int state,int count,const LaxMouse *d);
    virtual int WheelDown(int x,int y,unsigned int state,int count,const LaxMouse *d);
    virtual int MouseMove(int x,int y,unsigned int state,const LaxMouse *d);
    virtual int MoveResize(int nx,int ny,int nw,int nh);
    virtual int Resize(int nw,int nh);
    virtual int Event(const EventData *e,const char *mes);
    virtual void ChangeEditable(unsigned int which, int on);

     //serializing aids
    virtual LaxFiles::Attribute *dump_out_atts(LaxFiles::Attribute *att,int what,anObject *context);
    virtual void dump_in_atts(LaxFiles::Attribute *att,int flag,anObject *context);


     //curve specific functions:
    virtual void SetupRect();
    virtual int scaneditable(int x,int y);
    virtual int scan(int x,int y);
    virtual int scannear(int x,int y, flatpoint *p_ret, int *index);
    virtual int MakeLookupTable(int *table,int numentries, int minvalue, int maxvalue);
    virtual void send(int which=0);
    virtual double f(double x);
    virtual CurveInfo *GetInfo() { return curveinfo; }
    virtual int SetInfo(CurveInfo *info);
    virtual int AddPoint(double x,double y);
    virtual int MovePoint(int index, double x,double y);
    virtual void Reset();
};


} // namespace Laxkit

#endif