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/* -*- 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 Lesser General Public License as published by
* the Free Software Foundation; either version 3 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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.
*/
#pragma once
#include <string>
#include <cmath>
#include "colour.h"
#include "pixelbuffer.h"
namespace GUI
{
class Font;
class Drawable;
class Image;
class Canvas;
enum class Filter
{
Nearest,
Linear,
};
class Painter
{
public:
Painter(Canvas& canvas);
~Painter();
void setColour(const Colour& colour);
void drawLine(int x1, int y1, int x2, int y2);
void drawText(int x, int y, const Font& font, const 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, const Drawable& image);
void drawRestrictedImage(int x0, int y0, const Colour& restriction_colour,
const Drawable& image);
void drawRestrictedImageStretched(int x0, int y0,
const Colour& restriction_colour,
const Drawable& image,
int width, int height, Filter filter);
void drawImageStretched(int x, int y, const Drawable& image,
int width, int height,
Filter filter = Filter::Nearest);
template<typename Iterator>
void draw(Iterator begin, Iterator end, int x_offset, int y_offset, Colour const& colour, double scale = 1.0);
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, const Box& box, int width, int height);
typedef struct {
Image* left;
Image* right;
Image* center;
} Bar;
void drawBar(int x, int y, const Bar& bar, int width, int height);
void clear();
private:
PixelBufferAlpha& pixbuf;
Colour colour;
};
template<typename Iterator>
void Painter::draw(Iterator begin, Iterator end, int x_offset, int y_offset, Colour const& colour, double scale)
{
if(scale > 1)
{
auto tmp = this->colour;
setColour(colour);
for (auto it = begin; it != end; ++it)
{
drawFilledCircle(x_offset + it->x * scale, y_offset + it->y * scale,
std::ceil(scale));
}
setColour(tmp);
}
else
{
for (auto it = begin; it != end; ++it)
{
pixbuf.addPixel(x_offset + it->x * scale, y_offset + it->y * scale,
colour);
}
}
}
} // GUI::
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