palette.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) 2004-2007,2010 by Tom Lechner
//
#ifndef _LAX_PALETTE_H
#define _LAX_PALETTE_H

#include <lax/dump.h>
#include <lax/anxapp.h>
#include <lax/anobject.h>
#include <lax/rectangles.h>
#include <lax/lists.h>
#include <lax/buttondowninfo.h>

namespace Laxkit {

#define LAX_GIMP_PALETTE 1

//-------------------------------- Palette/PaletteEntry -----------------------------
class PaletteEntry
{
 public:
    int *channels;
    int numcolors;
    int color_space;
    int maxcolor;
    char *name;
    PaletteEntry(const char *nname,int n,int *v,int space,int max=255);
    ~PaletteEntry();
};

class Palette : public LaxFiles::DumpUtility, public anObject
{
 public:
    int defaultmaxcolor;
    int default_colorspace;
    char *filename;
    char *name;
    char is_read_in;
    int columns;
    PtrStack<PaletteEntry> colors;
    Palette();
    virtual ~Palette();
    
    virtual void dump_out(FILE *f,int indent,int what,anObject *savecontext);
    virtual void dump_in (FILE *f,int indent,int what,anObject *loadcontext,LaxFiles::Attribute **att);
    virtual LaxFiles::Attribute *dump_out_atts(LaxFiles::Attribute *att,int what,anObject *savecontext);
    virtual void dump_in_atts(LaxFiles::Attribute *att,int flag,anObject *loadcontext);

    virtual int AddRGB(const char *name, int r, int g, int b, int max);
    virtual int AddRGBA(const char *name, int r, int g, int b, int a, int max);
    virtual int AddCMYK(const char *name, int c, int m, int y, int k, int max);
    virtual int AddCMYKA(const char *name, int c, int m, int y, int k, int a, int max);
    virtual int AddGray(const char *name, int g,int max);
    virtual int AddGrayA(const char *name, int g,int a,int max);
};

Palette *rainbowPalette(int w,int h,int max,int include_gray_strip);
    
//-------------------------------- PaletteWindow -----------------------------

#define PALW_DBCLK_TO_LOAD   (1<<16)

class PaletteWindow : public anXWindow
{
 protected:
    int xn,yn;
    double dx,dy;
    ButtonDownInfo buttondown;
 public:
    Palette *palette;
    int curcolor,ccolor;
    IntRectangle inrect;
    PaletteWindow(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);
    virtual ~PaletteWindow();
    virtual const char *whattype() { return "PaletteWindow"; }
    virtual int Event(const EventData *e,const char *mes);
    virtual int send();
    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 RBUp(int x,int y,unsigned int state,const LaxMouse *d);
    virtual int MouseMove(int x,int y,unsigned int state,const LaxMouse *d);
    virtual void Refresh();
    virtual void findInrect();
    virtual int findColorIndex(int x,int y);
    virtual int MoveResize(int nx,int ny,int nw,int nh);
    virtual int Resize(int nw,int nh);

    virtual const char *PaletteDir();
    virtual int LoadPalette(const char *file);
};

} //namespace Laxkit;

#endif