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/* RGBGraph Graph implemented as raw RGB image.
Last modified 1998-04-26
Copyright (C) 1998 David Flater.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
class RGBGraph: public Graph {
public:
RGBGraph (unsigned xsize, unsigned ysize, Colors *in_colors);
virtual ~RGBGraph();
// The user_io_ptr feature of libpng doesn't seem to work.
void writeAsPNG (png_rw_ptr write_data_fn);
protected:
unsigned fontWidth();
unsigned fontHeight();
void drawString (int x, int y, const Dstr &s);
unsigned char *rgb;
Colors *colors;
void setPixel (int x, int y, Colors::colorchoice c);
void setPixel (int x, int y, Colors::colorchoice c,
double saturation); // Saturation ranges from 0 to 1
};
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