标签:ini 最小值 导航栏 circle private pixel tcl 中文注释 图形
环形进度条,用来展示当前进度,为了满足大屏UI的需要特意定制,以前有个叫圆环进度条,不能满足项目需要,只能重新定做,以前的进度间距不能自适应分辨率,而且当前进度对应的反的进度不能单独设置颜色,即当前进度90%,剩余的10%也需要设置成不同的颜色,还有一个重要的功能是,能够指定多个警戒值,一旦超过或者小于该值,则当前进度自动切换到预先设定的警戒值颜色,而不需要用户自己去判断警戒值去设置警戒颜色,用户只需要传入当前值即可,这个功能非常实用,还可以设置警戒判断的标准是超过值还是小于值报警。个人感觉这个环形进度条功能完爆市面上所有的圆环进度条。只要稍作参数设置可以变成各种想要的效果,什么起始角度+动画效果+顺时针逆时针转等。
#ifndef PROGRESSRING_H
#define PROGRESSRING_H
/**
* 环形进度条控件 作者:feiyangqingyun(QQ:517216493) 2019-5-1
* 1:可设置范围值,支持负数值
* 2:可设置精确度,最大支持小数点后3位
* 3:可设置起始角度
* 4:可设置三种值+三种颜色,启用自动检测值后绘制不同的颜色
* 5:可设置是否启用动画效果以及动画效果每次移动的步长
* 6:可设置背景颜色/文字颜色/进度颜色/中间圆颜色
* 7:可设置值警戒报警比较模式 0-不比较 1-最大值报警 2-最小值报警
* 8:可设置显示的值是百分比
* 9:可设置圆环与背景之间的距离即间距
* 10:可设置圆环的宽度
* 11:可设置圆环背景颜色,形成两种颜色差
* 12:可设置顺时针逆时针转
* 13:自适应窗体拉伸,刻度尺和文字自动缩放
*/
#include <QWidget>
#ifdef quc
#if (QT_VERSION < QT_VERSION_CHECK(5,7,0))
#include <QtDesigner/QDesignerExportWidget>
#else
#include <QtUiPlugin/QDesignerExportWidget>
#endif
class QDESIGNER_WIDGET_EXPORT ProgressRing : public QWidget
#else
class ProgressRing : public QWidget
#endif
{
Q_OBJECT
Q_PROPERTY(double minValue READ getMinValue WRITE setMinValue)
Q_PROPERTY(double maxValue READ getMaxValue WRITE setMaxValue)
Q_PROPERTY(double value READ getValue WRITE setValue)
Q_PROPERTY(int precision READ getPrecision WRITE setPrecision)
Q_PROPERTY(bool showPercent READ getShowPercent WRITE setShowPercent)
Q_PROPERTY(int alarmMode READ getAlarmMode WRITE setAlarmMode)
Q_PROPERTY(int startAngle READ getStartAngle WRITE setStartAngle)
Q_PROPERTY(int ringPadding READ getRingPadding WRITE setRingPadding)
Q_PROPERTY(int ringWidth READ getRingWidth WRITE setRingWidth)
Q_PROPERTY(bool animation READ getAnimation WRITE setAnimation)
Q_PROPERTY(double animationStep READ getAnimationStep WRITE setAnimationStep)
Q_PROPERTY(QColor bgColor READ getBgColor WRITE setBgColor)
Q_PROPERTY(QColor textColor READ getTextColor WRITE setTextColor)
Q_PROPERTY(QColor ringColor READ getRingColor WRITE setRingColor)
Q_PROPERTY(QColor ringBgColor READ getRingBgColor WRITE setRingBgColor)
Q_PROPERTY(QColor circleColor READ getCircleColor WRITE setCircleColor)
Q_PROPERTY(int ringValue1 READ getRingValue1 WRITE setRingValue1)
Q_PROPERTY(int ringValue2 READ getRingValue2 WRITE setRingValue2)
Q_PROPERTY(int ringValue3 READ getRingValue3 WRITE setRingValue3)
Q_PROPERTY(QColor ringColor1 READ getRingColor1 WRITE setRingColor1)
Q_PROPERTY(QColor ringColor2 READ getRingColor2 WRITE setRingColor2)
Q_PROPERTY(QColor ringColor3 READ getRingColor3 WRITE setRingColor3)
public:
explicit ProgressRing(QWidget *parent = 0);
~ProgressRing();
protected:
void paintEvent(QPaintEvent *);
void drawBg(QPainter *painter);
void drawRing(QPainter *painter);
void drawPadding(QPainter *painter);
void drawCircle(QPainter *painter);
void drawValue(QPainter *painter);
private slots:
void updateValue();
private:
double minValue; //最小值
double maxValue; //最大值
double value; //目标值
int precision; //精确度,小数点后几位
bool clockWise; //顺时针逆时针
bool showPercent; //显示百分比
int alarmMode; //警戒报警模式,进度为不同的颜色
int startAngle; //起始角度
int ringPadding; //圆环间距
int ringWidth; //圆环宽度
bool animation; //是否启用动画显示
double animationStep; //动画显示时步长
QColor bgColor; //背景颜色
QColor textColor; //文字颜色
QColor ringColor; //圆环颜色
QColor ringBgColor; //圆环进度背景
QColor circleColor; //中心圆颜色
int ringValue1; //环形值1
int ringValue2; //环形值2
int ringValue3; //环形值3
QColor ringColor1; //环形颜色1
QColor ringColor2; //环形颜色2
QColor ringColor3; //环形颜色3
bool reverse; //是否往回走
double currentValue; //当前值
QTimer *timer; //定时器绘制动画
public:
double getMinValue() const;
double getMaxValue() const;
double getValue() const;
int getPrecision() const;
bool getClockWise() const;
bool getShowPercent() const;
int getAlarmMode() const;
int getStartAngle() const;
int getRingPadding() const;
int getRingWidth() const;
bool getAnimation() const;
double getAnimationStep() const;
QColor getBgColor() const;
QColor getTextColor() const;
QColor getRingColor() const;
QColor getRingBgColor() const;
QColor getCircleColor() const;
int getRingValue1() const;
int getRingValue2() const;
int getRingValue3() const;
QColor getRingColor1() const;
QColor getRingColor2() const;
QColor getRingColor3() const;
QSize sizeHint() const;
QSize minimumSizeHint() const;
public Q_SLOTS:
//设置范围值
void setRange(double minValue, double maxValue);
void setRange(int minValue, int maxValue);
//设置最大最小值
void setMinValue(double minValue);
void setMaxValue(double maxValue);
//设置目标值
void setValue(double value);
void setValue(int value);
//设置精确度
void setPrecision(int precision);
//设置顺时针逆时针转
void setClockWise(bool clockWise);
//设置显示百分比
void setShowPercent(bool showPercent);
//设置启动自动检验
void setAlarmMode(int alarmMode);
//设置起始角度
void setStartAngle(int startAngle);
//设置圆环间距
void setRingPadding(int ringPadding);
//设置圆环宽度
void setRingWidth(int ringWidth);
//设置是否启用动画显示
void setAnimation(bool animation);
//设置动画显示的步长
void setAnimationStep(double animationStep);
//设置背景颜色
void setBgColor(const QColor &bgColor);
//设置文本颜色
void setTextColor(const QColor &textColor);
//设置圆环进度颜色
void setRingColor(const QColor &ringColor);
//设置圆环背景颜色
void setRingBgColor(const QColor &ringBgColor);
//设置中心圆颜色
void setCircleColor(const QColor &circleColor);
//设置三种值
void setRingValue1(int ringValue1);
void setRingValue2(int ringValue2);
void setRingValue3(int ringValue3);
//设置三种颜色
void setRingColor1(const QColor &ringColor1);
void setRingColor2(const QColor &ringColor2);
void setRingColor3(const QColor &ringColor3);
Q_SIGNALS:
void valueChanged(int value);
};
#endif // PROGRESSRING_H
void ProgressRing::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,平移坐标轴中心,等比例缩放
QPainter painter(this);
painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing);
painter.translate(width / 2, height / 2);
painter.scale(side / 200.0, side / 200.0);
//绘制背景
drawBg(&painter);
//绘制进度
drawRing(&painter);
//绘制间隔,重新绘制一个圆遮住,产生间距效果
if (ringPadding > 0) {
drawPadding(&painter);
}
//绘制中间圆
drawCircle(&painter);
//绘制当前值
drawValue(&painter);
}
void ProgressRing::drawBg(QPainter *painter)
{
int radius = 99;
painter->save();
painter->setPen(Qt::NoPen);
//这里有个技巧,如果没有间距则设置成圆环的背景色
painter->setBrush(ringPadding == 0 ? ringBgColor : bgColor);
painter->drawEllipse(-radius, -radius, radius * 2, radius * 2);
painter->restore();
}
void ProgressRing::drawRing(QPainter *painter)
{
int radius = 99 - ringPadding;
painter->save();
painter->setPen(Qt::NoPen);
painter->setBrush(ringColor);
QRectF rect(-radius, -radius, radius * 2, radius * 2);
//计算总范围角度,当前值范围角度,剩余值范围角度
double angleAll = 360.0;
double angleCurrent = angleAll * ((currentValue - minValue) / (maxValue - minValue));
double angleOther = angleAll - angleCurrent;
//如果逆时针
if (!clockWise) {
angleCurrent = -angleCurrent;
angleOther = -angleOther;
}
//动态设置当前进度颜色
QColor color = ringColor;
if (alarmMode == 1) {
if (currentValue >= ringValue3) {
color = ringColor3;
} else if (currentValue >= ringValue2) {
color = ringColor2;
} else {
color = ringColor1;
}
} else if (alarmMode == 2) {
if (currentValue <= ringValue1) {
color = ringColor1;
} else if (currentValue <= ringValue2) {
color = ringColor2;
} else {
color = ringColor3;
}
}
//绘制当前值饼圆
painter->setBrush(color);
painter->drawPie(rect, (startAngle - angleCurrent) * 16, angleCurrent * 16);
//绘制剩余值饼圆
painter->setBrush(ringBgColor);
painter->drawPie(rect, (startAngle - angleCurrent - angleOther) * 16, angleOther * 16);
painter->restore();
}
void ProgressRing::drawPadding(QPainter *painter)
{
int radius = 99 - ringWidth - ringPadding;
painter->save();
painter->setPen(Qt::NoPen);
painter->setBrush(bgColor);
painter->drawEllipse(-radius, -radius, radius * 2, radius * 2);
painter->restore();
}
void ProgressRing::drawCircle(QPainter *painter)
{
//文字的区域要减去进度的宽度及间距
int radius = 99 - ringWidth - (ringPadding * 2);
painter->save();
painter->setPen(Qt::NoPen);
painter->setBrush(circleColor);
painter->drawEllipse(-radius, -radius, radius * 2, radius * 2);
painter->restore();
}
void ProgressRing::drawValue(QPainter *painter)
{
//文字的区域要减去进度的宽度及间距
int radius = 99 - ringWidth - (ringPadding * 2);
painter->save();
painter->setPen(textColor);
QFont font;
int fontSize = radius - (showPercent ? 20 : 6);
font.setPixelSize(fontSize);
painter->setFont(font);
QRectF textRect(-radius, -radius, radius * 2, radius * 2);
QString strValue;
if (showPercent) {
double percent = (currentValue * 100) / (maxValue - minValue);
strValue = QString("%1%").arg(percent, 0, 'f', precision);
} else {
strValue = QString("%1").arg(currentValue, 0, 'f', precision);
}
painter->drawText(textRect, Qt::AlignCenter, strValue);
painter->restore();
}
标签:ini 最小值 导航栏 circle private pixel tcl 中文注释 图形
原文地址:https://www.cnblogs.com/feiyangqingyun/p/10801377.html