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lab 6 start

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barnestr
2022-05-10 21:20:05 -05:00
parent 1523e62098
commit fecf12c97a
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Lab6/mydrawing.cpp Normal file
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#include "mydrawing.h"
//#include <iostream>
using namespace std;
MyDrawing::MyDrawing()
{
cout << "COLORS: 'b' = blue, 'r' = red, 'g' = green \n";
cout << "MODES: 'l' = lines, 'm' = mirror, 'd' = dotted, 'c' = connected\n";
cout << "OTHER: 'Delete' = clear image\n";
}
void MyDrawing::keyDown(GraphicsContext *gc, unsigned int keycode)
{
switch (keycode)
{
case 114: // 'r', change color to red
color = GraphicsContext::RED;
break;
case 103: // 'g', change color to green
color = GraphicsContext::GREEN;
break;
case 98: // 'b', change color to blues
color = GraphicsContext::BLUE;
break;
case 65535: // 'delete', clear window
gc->clear();
break;
case 108: // 'l', set mode to "lines"
mode = "lines";
break;
case 109: // 'm', set mode to "mirror"
mode = "mirror";
break;
case 99: // 'c', set mode to connected
connected = true;
break;
case 100: // 'd', set mode to dotted
connected = false;
break;
}
}
void MyDrawing::mouseButtonDown(GraphicsContext *gc, unsigned int button, int x,
int y)
{
hold = true; // user is holding down mouse
}
void MyDrawing::mouseMove(GraphicsContext *gc, int x, int y)
{
int dx = gc->getWindowWidth();
int dy = gc->getWindowHeight();
if (hold)
{ // only draw when user is holding down mouse
if (mode == "lines")
{
gc->setColor(color);
//. draw line from center of window to mouse location
gc->drawLine(dx / 2, dy / 2, x, y);
}
else if (mode == "mirror")
{
gc->setColor(color);
if (firstdraw)
{
xprev = x;
yprev = y;
firstdraw = false;
}
// mirror 8 times around center in dotted or connected mode
if (!connected)
{
setLargePixel(gc, x, y);
setLargePixel(gc, y + dx / 2 - dy / 2, -x + dx / 2 + dy / 2);
setLargePixel(gc, -y + dx / 2 + dy / 2, x - dx / 2 + dy / 2);
setLargePixel(gc, -x + dx, -y + dy);
setLargePixel(gc, y + dx / 2 - dy / 2, x - dx / 2 + dy / 2);
setLargePixel(gc, -y + dx / 2 + dy / 2, -x + dx / 2 + dy / 2);
setLargePixel(gc, x, -y + dy);
setLargePixel(gc, -x + dx, y);
}
else
{
drawLargeLine(gc, xprev, yprev, x, y);
drawLargeLine(gc, yprev + dx / 2 - dy / 2, -xprev + dx / 2 + dy / 2,
y + dx / 2 - dy / 2, -x + dx / 2 + dy / 2);
drawLargeLine(gc, -yprev + dx / 2 + dy / 2, xprev - dx / 2 + dy / 2,
-y + dx / 2 + dy / 2, x - dx / 2 + dy / 2);
drawLargeLine(gc, -xprev + dx, -yprev + dy, -x + dx, -y + dy);
drawLargeLine(gc, yprev + dx / 2 - dy / 2, xprev - dx / 2 + dy / 2,
y + dx / 2 - dy / 2, x - dx / 2 + dy / 2);
drawLargeLine(gc, -yprev + dx / 2 + dy / 2, -xprev + dx / 2 + dy / 2,
-y + dx / 2 + dy / 2, -x + dx / 2 + dy / 2);
drawLargeLine(gc, xprev, -yprev + dy, x, -y + dy);
drawLargeLine(gc, -xprev + dx, yprev, -x + dx, y);
}
// draw line from previous mouse coordinate
xprev = x;
yprev = y;
}
}
}
void MyDrawing::mouseButtonUp(GraphicsContext *gc,
unsigned int button, int x, int y)
{
// user has released mouse button
hold = false;
firstdraw = true;
}
void drawLargeLine(GraphicsContext *gc, int x0, int y0, int x1, int y1)
{
// draw 3 pixel wide line
gc->drawLine(x0, y0, x1, y1);
gc->drawLine(x0 + 1, y0, x1 + 1, y1);
gc->drawLine(x0 - 1, y0, x1 - 1, y1);
}
void setLargePixel(GraphicsContext *gc, int x, int y)
{
// draw 9x9 square around pixel
gc->setPixel(x, y);
gc->setPixel(x + 1, y);
gc->setPixel(x + 1, y + 1);
gc->setPixel(x, y + 1);
gc->setPixel(x - 1, y + 1);
gc->setPixel(x - 1, y);
gc->setPixel(x - 1, y - 1);
gc->setPixel(x, y - 1);
gc->setPixel(x + 1, y - 1);