#include "frmplotrect.h"
#include "ui_frmplotrect.h"
#include "quihelper.h"

frmPlotRect::frmPlotRect(QWidget *parent) : QWidget(parent), ui(new Ui::frmPlotRect)
{
    ui->setupUi(this);
    this->initForm();
}

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

void frmPlotRect::paintEvent(QPaintEvent *)
{
    int width = this->width();
    int height = this->height();

    QPainter painter(this);
    painter.setRenderHints(QPainter::Antialiasing);

    if (type == 0) {
        QPen pen;
        pen.setWidth(2);
        pen.setColor(QColor(200, 0, 0));
        painter.setPen(pen);
        painter.setBrush(Qt::NoBrush);

        //绘制左侧竖线
        painter.drawLine(1, 0, 1, height);
        //绘制右侧竖线
        painter.drawLine(width - 1, 0, width - 1, height);
        //绘制中间直线
        painter.drawLine(0, height / 2, width, height / 2);
        //绘制中间箭头
        QRect textRect(0, 0, width, height / 2 + 5);
        painter.setPen(QColor(0, 0, 0));
        painter.drawText(textRect, Qt::AlignHCenter | Qt::AlignBottom, QChar(0xf106));
    } else if (type == 1) {
        QPen pen;
        pen.setWidth(4);
        pen.setColor(QColor(0, 128, 0));
        painter.setPen(pen);
        painter.setBrush(QColor(0, 255, 0, 30));

        //绘制矩形区域
        painter.drawRect(0, 0, width, height);
        //绘制圆角矩形区域
        //painter.drawRoundedRect(0, 0, width, height, 3, 3);
    }
}

void frmPlotRect::initForm()
{
    type = 0;

    //判断图形字体是否存在,不存在则加入
    QFontDatabase fontDb;
    if (!fontDb.families().contains("FontAwesome")) {
        int fontId = fontDb.addApplicationFont(":/font/fontawesome-webfont.ttf");
        QStringList fontName = fontDb.applicationFontFamilies(fontId);
        if (fontName.count() == 0) {
            qDebug() << "load fontawesome-webfont.ttf error";
        }
    }

    if (fontDb.families().contains("FontAwesome")) {
        iconFont = QFont("FontAwesome");
#if (QT_VERSION >= QT_VERSION_CHECK(4,8,0))
        iconFont.setHintingPreference(QFont::PreferNoHinting);
#endif
    }
}

void frmPlotRect::setType(int type)
{
    if (this->type != type) {
        this->type = type;
        update();
    }
}