#ifndef ANTLINE_H
#define ANTLINE_H/*** 蚂蚁线控件 整理:feiyangqingyun(QQ:517216493) 2018-8-31* 1:可设置蚂蚁线的长度* 2:可设置蚂蚁线的宽度=粗细* 3:可设置蚂蚁线的步长* 4:可设置蚂蚁线的流动速度* 5:可设置蚂蚁线的颜色* 6:可设置蚂蚁线的形状*/#include <QWidget>
#include <QVector>#ifdef quc
#if (QT_VERSION < QT_VERSION_CHECK(5,7,0))
#include <QtDesigner/QDesignerExportWidget>
#else
#include <QtUiPlugin/QDesignerExportWidget>
#endifclass QDESIGNER_WIDGET_EXPORT AntLine : public QWidget
#else
class AntLine : public QWidget
#endif{Q_OBJECTQ_ENUMS(LineStyle)Q_PROPERTY(int lineLen READ getLineLen WRITE setLineLen)Q_PROPERTY(int lineWidth READ getLineWidth WRITE setLineWidth)Q_PROPERTY(int lineStep READ getLineStep WRITE setLineStep)Q_PROPERTY(int lineSpeed READ getLineSpeed WRITE setLineSpeed)Q_PROPERTY(QColor lineColor READ getLineColor WRITE setLineColor)Q_PROPERTY(LineStyle lineStyle READ getLineStyle WRITE setLineStyle)public:enum LineStyle {LineStyle_Rect = 0,         //矩形LineStyle_RoundedRect = 1,  //圆角矩形LineStyle_Ellipse = 2,      //椭圆LineStyle_Circle = 3        //圆形};explicit AntLine(QWidget *parent = 0);~AntLine();protected:void paintEvent(QPaintEvent *event);private:int lineLen;                //线条长度int lineWidth;              //线条宽度int lineStep;               //每次移动的步长int lineSpeed;              //线条流动的速度QColor lineColor;           //线条颜色LineStyle lineStyle;        //线条样式int dashes;                 //线条长度int spaces;                 //空白长度QVector<double> dashPattern;//线条样式数据QTimer *timer;              //更新定时器private slots:void updateValue();public:int getLineLen()            const;int getLineWidth()          const;int getLineStep()           const;int getLineSpeed()          const;QColor getLineColor()       const;LineStyle getLineStyle()    const;QSize sizeHint()            const;QSize minimumSizeHint()     const;public Q_SLOTS://设置线条长度void setLineLen(int lineLen);//设置线条宽度void setLineWidth(int lineWidth);//设置线条步长void setLineStep(int lineStep);//设置线条速度void setLineSpeed(int lineSpeed);//设置线条颜色void setLineColor(const QColor &lineColor);//设置线条样式void setLineStyle(const LineStyle &lineStyle);};#endif // ANTLINE_H

#pragma execution_character_set("utf-8")#include "antline.h"
#include "qpainter.h"
#include "qevent.h"
#include "qtimer.h"
#include "qdebug.h"AntLine::AntLine(QWidget *parent) : QWidget(parent)
{lineLen = 6;lineWidth = 2;lineStep = 1;lineSpeed = 100;lineColor = QColor(0, 0, 0);lineStyle = LineStyle_Circle;dashes = lineLen;spaces = lineLen;dashPattern.clear();for (int i = 0; i < 20; ++i) {dashPattern << lineLen;}//启动定时器更新线条timer = new QTimer(this);connect(timer, SIGNAL(timeout()), this, SLOT(updateValue()));timer->start(lineSpeed);
}AntLine::~AntLine()
{if (timer->isActive()) {timer->stop();}
}void AntLine::paintEvent(QPaintEvent *)
{int width = this->width();int height = this->height();int side = qMin(width, height);//绘制准备工作,启用反锯齿QPainter painter(this);painter.setRenderHints(QPainter::Antialiasing);//设置画笔宽度+颜色+点阵样式QPen pen;pen.setWidth(lineWidth);pen.setColor(lineColor);pen.setDashPattern(dashPattern);painter.setPen(pen);//根据不同的样式绘制不同的线条if (lineStyle == LineStyle_Rect) {painter.drawRect(0, 0, width, height);} else if (lineStyle == LineStyle_RoundedRect) {painter.drawRoundedRect(0, 0, width, height, 5, 5);} else if (lineStyle == LineStyle_Ellipse) {painter.drawEllipse(0, 0, width, height);} else if (lineStyle == LineStyle_Circle) {painter.drawEllipse(width / 2 - side / 2, 0, side, side);}
}void AntLine::updateValue()
{//当蚂蚁线走到末尾,则重新赋值if (dashes == lineLen && spaces == lineLen) {dashes = 0;spaces = 0;}if (dashes == 0 && spaces < lineLen) {spaces = spaces + lineStep;} else if (spaces == lineLen && dashes < lineLen) {dashes = dashes + lineStep;}//每次只需要将前面两个长度更新就行dashPattern[0] = dashes;dashPattern[1] = spaces;update();
}int AntLine::getLineLen() const
{return this->lineLen;
}int AntLine::getLineWidth() const
{return this->lineWidth;
}int AntLine::getLineStep() const
{return this->lineStep;
}int AntLine::getLineSpeed() const
{return this->lineSpeed;
}QColor AntLine::getLineColor() const
{return this->lineColor;
}AntLine::LineStyle AntLine::getLineStyle() const
{return this->lineStyle;
}QSize AntLine::sizeHint() const
{return QSize(100, 100);
}QSize AntLine::minimumSizeHint() const
{return QSize(20, 20);
}void AntLine::setLineLen(int lineLen)
{if (this->lineLen != lineLen) {this->lineLen = lineLen;dashes = lineLen;spaces = lineLen;dashPattern.clear();for (int i = 0; i < 20; ++i) {dashPattern << lineLen;}update();}
}void AntLine::setLineWidth(int lineWidth)
{if (this->lineWidth != lineWidth) {this->lineWidth = lineWidth;update();}
}void AntLine::setLineStep(int lineStep)
{if (this->lineStep != lineStep) {this->lineStep = lineStep;update();}
}void AntLine::setLineSpeed(int lineSpeed)
{if (this->lineSpeed != lineSpeed) {this->lineSpeed = lineSpeed;update();}
}void AntLine::setLineColor(const QColor &lineColor)
{if (this->lineColor != lineColor) {this->lineColor = lineColor;update();}
}void AntLine::setLineStyle(const AntLine::LineStyle &lineStyle)
{if (this->lineStyle != lineStyle) {this->lineStyle = lineStyle;update();}
}