#include "mytxcode.h"
#include <QPainter>
#include <QTime>
#include <QDebug>
MyTXCode::MyTXCode(QWidget *parent) : QWidget(parent)
{
this->setFixedSize(200, 40);
initData();
initVCodeRange();
initVCodeColorList();
changeVCode();
}
MyTXCode::~MyTXCode()
{
}
void MyTXCode::setVCodeCount(int vCodeCount)
{
m_vCodeCount = vCodeCount;
}
void MyTXCode::setHotPixelCount(int hotPixelCount)
{
m_hotPixelCount = hotPixelCount;
}
void MyTXCode::changeVCode()
{
updateVCode();
updateVCodePic();
}
bool MyTXCode::checkVCode(QString vCode)
{
getNowVCode();
return m_vCode == vCode;
}
void MyTXCode::paintEvent(QPaintEvent *event)
{
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
painter.fillRect(event->rect(), QBrush(Qt::white));
painter.translate(0, 0);
painter.save();
painter.translate(event->rect().center().x() - m_vCodePic.size() / 2 * 14, event->rect().center().y());
for (int i = 0; i < m_vCodePic.size(); i++)
{
drawConversion(painter);
drawVCode(painter, i);
painter.translate(20, 0);
}
painter.restore();
drawOutline(painter);
drawHotPixel(painter);
}
void MyTXCode::initData()
{
m_vCodeCount = VCODECOUNT;
m_hotPixelCount = HOTPIXELCOUNT;
m_slopeRange = SLOPERANGE;
m_sizeRange = SIZERANGE;
m_vCode = "";
m_isChange = false;
qsrand(QTime(0,0,0).secsTo(QTime::currentTime())); // 设置随机数种子
// 注:不设置随机种子会导致每次运行程序得到的随机数一样。
}
void MyTXCode::initVCodeRange()
{
m_vCodeRange << "2" << "3" << "4" << "5" << "6" << "7" << "8" << "9"
<< "a" << "b" << "c" << "d" << "e" << "f" << "g" << "h"
<< "2" << "3" << "4" << "5" << "6" << "7" << "8" << "9"
<< "i" << "j" << "k" << "m" << "n" << "o" << "p" << "q"
<< "2" << "3" << "4" << "5" << "6" << "7" << "8" << "9"
<< "r" << "s" << "t" << "u" << "v" << "w" << "x" << "y"
<< "2" << "3" << "4" << "5" << "6" << "7" << "8" << "9"
<< "z" << "A" << "B" << "C" << "D" << "E" << "F" << "G"
<< "2" << "3" << "4" << "5" << "6" << "7" << "8" << "9"
<< "H" << "I" << "J" << "K" << "L" << "M" << "N" << "O"
<< "2" << "3" << "4" << "5" << "6" << "7" << "8" << "9"
<< "P" << "Q" << "R" << "S" << "T" << "U" << "V" << "W"
<< "2" << "3" << "4" << "5" << "6" << "7" << "8" << "9"
<< "X" << "Y" << "Z" ;
}
void MyTXCode::initVCodeColorList()
{
m_vCodeColor << Qt::darkRed << Qt::darkGreen << Qt::darkBlue << Qt::darkCyan
<< Qt::darkMagenta << Qt::darkYellow << Qt::darkGray;
}
void MyTXCode::drawVCode(QPainter &painter, int vCodeIndex)
{
painter.fillPath(*m_vCodePic[vCodeIndex], QBrush(m_vCodeColor[qrand() % m_vCodeColor.size()]));
}
void MyTXCode::drawOutline(QPainter &painter)
{
painter.setPen(Qt::darkGreen);
painter.setPen(Qt::DashLine);
painter.setBrush(Qt::NoBrush);
painter.drawRect(0, 0, this->width(), this->height());
}
void MyTXCode::drawHotPixel(QPainter &painter)
{
painter.setPen(Qt::red);
painter.setPen(Qt::DotLine);
painter.setBrush(Qt::NoBrush);
for (int i = 0; i < m_hotPixelCount; i++)
painter.drawPoint(QPointF(qrand() % this->width(), qrand() % this->height()));
}
void MyTXCode::drawConversion(QPainter &painter)
{
if (qrand() % 2)
{
// 顺时针旋转
painter.rotate(qrand() % m_slopeRange);
}
else
{
// 逆时针旋转
painter.rotate(-(qrand() % m_slopeRange));
}
// 随机大小
painter.scale((qrand() % m_sizeRange + (100 - m_sizeRange)) / 100.0 ,
(qrand() % m_sizeRange + (100 - m_sizeRange)) / 100.0);
}
void MyTXCode::updateVCode()
{
m_vCodeList.clear();
for (int i = 0; i < m_vCodeCount; i++)
{
m_vCodeList << m_vCodeRange[qrand() % m_vCodeRange.size()]; // 产生size以内的随机数[0-(size-1)]
}
}
void MyTXCode::updateVCodePic()
{
m_vCodePic.clear();
for (int i = 0; i < m_vCodeCount; i++)
{
// 一个字符一个字符的生成图片
QPainterPath *oneCodePic = new QPainterPath(QPointF(0, 0));
QFont font;
font.setBold(true); // 加粗
//font.setPixelSize(20); // 随像素变化字号
font.setPointSize(20); // 肉眼可见固定字号
font.setFamily("Microsoft YaHei"); // 微软雅黑
QRect fontBoundingRect = QFontMetrics(font).boundingRect(m_vCodeList[i]);
oneCodePic->addText(-QPointF(fontBoundingRect.center()), font, m_vCodeList[i]);
m_vCodePic << oneCodePic;
}
setVCodePic(m_vCodePic);
}
void MyTXCode::getNowVCode()
{
m_vCode = "";
for (int i = 0; i < m_vCodeCount; i++)
{
m_vCode += m_vCodeList[i];
}
}
void MyTXCode::setVCodePic(const QList<QPainterPath *> &vCodePic)
{
m_vCodePic = vCodePic;
update();
}
