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poligono.cpp
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poligono.cpp
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#include "poligono.h"
#include "ui_poligono.h"
Poligono::Poligono(QWidget *parent) :
QDialog(parent),
ui(new Ui::Poligono)
{
ui->setupUi(this);
ui->pushButton->setText("Original");
ui->pushButton_3->setText("Traslación");
ui->pushButton_4->setText("Zoom in");
ui->pushButton_5->setText("Zoom out");
ui->pushButton_6->setText("Reflexión");
ui->pushButton_2->setText("Rotación");
paint = false;
sides = 0;
centerX = width()/2;
centerY = height()/2;
}
void Poligono::paintEvent(QPaintEvent * p)
{
QPainter painter(this);
QPen pen(Qt::black);
pen.setWidth(1);
painter.setPen(pen);
if(paint)
{
QString numSides = ui->plainTextEdit->toPlainText();
if(!numSides.isEmpty())
{
painter.setPen(pen);
sides = numSides.toInt();
for(int i = 0; i<transformations.size(); i++)
{
painter.setTransform(transformations[i], true);
drawPolygon(sides, painter);
}
}
}
}
void Poligono::drawPolygon(int sides, QPainter & paint)
{
double radio = 100;
double angulo = (double)360.0/(double)sides;
double xCentro = 0.0;
double yCentro = 0.0;
int xi,yi,xf,yf;
double val = M_PI / 180;
angulo *= val;
int i = 0;
for(i=1; i<=sides; i++)
{
xi = xCentro + (radio * cos(angulo*i));
yi = yCentro + (radio * sin(angulo*i));
xf = xCentro + (radio * cos(angulo*(i+1)));
yf = yCentro + (radio * sin(angulo*(i+1)));
paint.drawLine(xi, yi, xf, yf);
}
}
void Poligono::on_pushButton_clicked()
{
paint = true;
transformations.clear();
QTransform object;
object.translate(centerX, centerY);
transformations.push_back(object);
update();
}
void Poligono::on_pushButton_2_clicked()
{
QString ang = ui->plainTextEdit_4->toPlainText();
if(!ang.isEmpty())
{
double angulo = ang.toDouble();
QTransform rotation;
rotation.rotate(angulo);
transformations.push_back(rotation);
update();
}
}
void Poligono::on_pushButton_3_clicked()
{
QString x = ui->plainTextEdit_2->toPlainText();
QString y = ui->plainTextEdit_3->toPlainText();
if(!x.isEmpty() && !y.isEmpty())
{
int _x = x.toInt();
int _y = y.toInt();
QTransform trans;
trans.translate(_x, _y);
transformations.push_back(trans);
update();
}
}
void Poligono::on_pushButton_4_clicked()
{
QTransform zoomIn;
zoomIn.scale(1.5,1.5);
transformations.push_back(zoomIn);
update();
}
void Poligono::on_pushButton_5_clicked()
{
QTransform zoomOut;
zoomOut.scale(0.7,0.7);
transformations.push_back(zoomOut);
update();
}
void Poligono::on_pushButton_6_clicked()
{
int _x = 1;
int _y = 1;
if(ui->radioButton->isChecked())
_x = -1;
else if(ui->radioButton_2->isChecked())
_y = -1;
QTransform reflexion;
reflexion.scale(_x,_y);
transformations.push_back(reflexion);
update();
}