#include "mainwindow.h"
#include "ui_mainwindow.h"

#include <QDebug>
#include <QResizeEvent>

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    ui->centralWidget->setMouseTracking(true);
    this->setMouseTracking(true);
    this->showMaximized();

    QPoint p1(100,70);
    const QRect& r = this->geometry();
    initWidth = r.width();
    initHeight = r.height();
    QPoint p2(r.width()-100,r.height()-70);
    scale = Scale(5,8,4000,3000,p1,p2);
    bitmap = Bitmap(p1,p2);
    scaleCount = 8;
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::mousePressEvent(QMouseEvent *event){
    if(ui->checkBox4->checkState()==Qt::Checked && event->button()==Qt::LeftButton){
        rect.setTopLeft(event->pos());
    }
    if(ui->checkBox3->checkState()==Qt::Checked && event->button()==Qt::LeftButton){
        circular.setCenter(event->posF());
    }
    if(ui->checkBox->checkState()==Qt::Unchecked){
        for(int i=0;i<vf.size();++i){
            Fault&f = vf[i];
            if(!f.isGenerated()){
                continue;
            }
            if(!isPressed&&f.contains(event->posF())){
                isPressed = true;
                iPoint = f.dotContains(event->posF());
                f.pick(event);
                break;

            }
            if(event->button()==Qt::RightButton){
                f.setMove(false);
            }
        }

    }
    if(event->button()==Qt::RightButton){
        c.setMove(false);
    }

    if(ui->checkBox->checkState()==Qt::Checked){
           // Fault 测试集
        int n = f.elementCount();
        if(event->button()==Qt::LeftButton){
            qreal x = event->posF().x();
            qreal y = event->posF().y();
            if(n>1){
                f.setPoint(n-1,x+0.01,y+0.01);
            }
            f.addPoint(x,y);
            if(n==0){
                f.addPoint(x+3,y+3);
            }

        }
        else if(event->button()==Qt::RightButton){
            f.generate();
            vf.push_back(f);
            f.clear();
            ui->checkBox->setCheckState(Qt::Unchecked);
        }
    }
    else if(ui->checkBox2->checkState()==Qt::Checked){
        // contour测试集
        int n = c.elementCount();
        if(event->button()==Qt::LeftButton){
            qreal x = event->posF().x();
            qreal y = event->posF().y();
            c.addPoint(x,y);
            if(n==0){
                c.addPoint(x+3,y+3);
            }
        }else if(event->button()==Qt::RightButton){
            c.generate();
            ui->checkBox2->setCheckState(Qt::Unchecked);
        }
    }
    if(ui->checkBox2->checkState()==Qt::Unchecked && event->button()==Qt::LeftButton){
        if(!isPressed&&c.contains(event->posF())){
            isPressed = true;
            iPoint = c.dotContains(event->posF());
            c.pick(event);
        }
    }
    if(event->button()==Qt::RightButton){
        ui->checkBox4->setCheckState(Qt::Unchecked);
        ui->checkBox3->setCheckState(Qt::Unchecked);
    }
    this->update();
}


void MainWindow::resizeEvent(QResizeEvent *event)
{
    QPoint p1(100,70);
    const QRect& r = this->geometry();
//    sx = (double)event->size().width()/initWidth;
//    sy = (double)event->size().height()/initHeight;
    QPoint p2(r.width()-100,r.height()-70);
    scale.setTopLeft(p1);
    scale.setBottomRight(p2);
    bitmap.setTopLeft(p1);
    bitmap.setBottomRight(p2);
    this->update();
}

void MainWindow::wheelEvent(QWheelEvent *event)
{
    int d = event->delta();
    if(d>0){
        scaleCount+=2;
    }else if(d<0){
        scaleCount-=2;
    }


    scale.setScaleCount(qAbs(scaleCount)%24);
    this->update();
}


void MainWindow::mouseReleaseEvent(QMouseEvent *event){
    isPressed = false;
    this->update();
}
void MainWindow::mouseMoveEvent(QMouseEvent *event){

    if(ui->checkBox3->checkState()==Qt::Checked){
        QPointF p = circular.center();
        QPointF p2 = event->posF();
        double r = qSqrt(qPow(p.x()-p2.x(), 2) + qPow(p.y()-p2.y(), 2));
        circular.setRadius(r);
    }
    if(ui->checkBox4->checkState()==Qt::Checked){
        rect.setBottomRight(event->pos());
    }

    if(ui->checkBox->checkState()==Qt::Checked){
        int n = f.elementCount();
        qreal x1 = event->posF().x();
        qreal y1 = event->posF().y();
        if(n > 1){
            f.setPoint(n-1,x1,y1);
        }
    }
    else if(ui->checkBox2->checkState()==Qt::Checked){
        int n = c.elementCount();
        qreal x1 = event->posF().x();
        qreal y1 = event->posF().y();
        if(n > 1){
            c.setPoint(n-1,x1,y1);
        }
    }
    if(ui->checkBox2->checkState()==Qt::Unchecked&&ui->checkBox->checkState()==Qt::Unchecked&&isPressed){
        if(c.isMove()){
            if(iPoint!=-1){
                c.setPoint(iPoint,event->posF().x(),event->posF().y());
            }else{
                c.move(event);
            }
        }
    }
    if(ui->checkBox->checkState()==Qt::Unchecked&&ui->checkBox2->checkState()==Qt::Unchecked&&isPressed){
        for(int i=0;i<vf.size();++i){
            Fault&f = vf[i];
            if(f.isMove()){
                if(iPoint!=-1){
                    f.setPoint(iPoint,event->posF().x(),event->posF().y());
                }else{
                    f.move(event);
                }
            }
        }
    }

    this->update();
}

void MainWindow::paintEvent(QPaintEvent *event){

    QPixmap mp(size());
    mp.fill(Qt::white);

    scale.paint(mp,event);
    bitmap.paint(mp,event);
    c.paint(mp,event);
    f.paint(mp,event);
    for(int i=0;i<vf.size();++i){
        vf[i].paint(mp,event);
    }
    circular.paint(mp,event);
    rect.paint(mp,event);

    QPainter painter(this);
//    painter.scale(sx,sx);
    painter.drawPixmap(0,0,mp);
}