ECG/exercise2/include/dda_line_tool.h
2019-05-11 10:51:24 +02:00

29 lines
No EOL
1 KiB
C++

//
// This source code is property of the Computer Graphics and Visualization
// chair of the TU Dresden. Do not distribute in modified or unmodified form!
// Copyright (C) 2016 CGV TU Dresden - All Rights Reserved
//
/*************************************************************************
DDA-Line tool.
This class is inherited from "tool_base" to define a tool for drawing
lines using the DDA algorithm on a canvas_buffer.
Read the information in "tool_base.h" for more information.
*************************************************************************/
#pragma once
// provides the declaration of the super class tool_base
#include "tool_base.h"
class dda_line_tool: public tool_base
{
public:
// Initialize the tool and store a reference of a canvas_buffer
dda_line_tool(canvas_buffer &canvas);
// Draw a line from (x0, y0) to (x1, y1)
void draw(int from_x, int from_y, int to_x, int to_y);
// Put debug output into the stream "stream" to be displayed in the
// main window
void set_text(std::stringstream& stream);
};