/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            painter.h
 *
 *  Wed Oct 12 19:48:45 CEST 2011
 *  Copyright 2011 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of DrumGizmo.
 *
 *  DrumGizmo 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.
 *
 *  DrumGizmo 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 DrumGizmo; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#ifndef __DRUMGIZMO_PAINTER_H__
#define __DRUMGIZMO_PAINTER_H__

#include <string>

#include "widget.h"
#include "colour.h"
#include "pixelbuffer.h"
#include "font.h"
#include "image.h"

namespace GUI {

class Painter {
public:
  Painter(Widget *widget);
  ~Painter();

  void flush();

  void setColour(Colour colour);

  void drawLine(int x1, int y1, int x2, int y2);
  void drawText(int x, int y, Font &font, std::string text,
                bool nocolour = false);
  void drawRectangle(int x1, int y1, int x2, int y2);
  void drawFilledRectangle(int x1, int y1, int x2, int y2);
  void drawPoint(int x, int y);
  void drawCircle(int x, int y, double r);
  void drawFilledCircle(int x, int y, int r);
  void drawImage(int x, int y, Image *image);
  void drawImageStretched(int x0, int y0, GUI::Image *image,
                          int width, int height);

  typedef struct {
    Image *topLeft;
    Image *top;
    Image *topRight;
    Image *left;
    Image *right;
    Image *bottomLeft;
    Image *bottom;
    Image *bottomRight;
    Image *center;
  } Box;
  void drawBox(int x, int y, Box *box, int width, int height);

  typedef struct {
    Image *left;
    Image *right;
    Image *center;
  } Bar;
  void drawBar(int x, int y, Bar *bar, int width, int height);

  void clear();

private:
  void plot(int x, int y, double c);
  double ipart(double x);
  double round(double x);
  double fpart(double x);
  double rfpart(double x);

  Widget *widget;
  PixelBufferAlpha *pixbuf;
  Colour colour;
};

};

#endif/*__DRUMGIZMO_PAINTER_H__*/