Qt实现圆形组合按钮,摇杆

最新推荐文章于 2023-09-15 15:43:51 发布

热心网友纯白

最新推荐文章于 2023-09-15 15:43:51 发布

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文章标签： Qt 自定义圆形按钮摇杆

本文链接：https://blog.youkuaiyun.com/yu_20501253/article/details/90438680

因项目需求，在软件上用Qt画组合按钮实现摇杆功能，用于控制机器人移动方向。借鉴了前行中的小猪的代码，最终效果支持更改文本和背景颜色，代码待完善，还给出了完整代码的下载链接。

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最近由于项目需要,在软件上画一个组合按钮实现摇杆的功能,以控制机器人移动的方向,借鉴了前行中的小猪的代码https://blog.youkuaiyun.com/GoForwardToStep/article/details/79124025,最终效果如下

支持更改文本和背景颜色,代码较丑,希望有志之士完善

CustomButton.h

#include <QtWidgets/QWidget>

#include <QPoint>
#include "qmath.h"

enum QUADRANT_NUM {
    QUADRANT_UP,
    QUADRANT_LEFT,
    QUADRANT_DOWN,
    QUADRANT_RIGHT,
    QUADRANT_NO_DEFINE,
};

class CustomButton : public QWidget
{
    Q_OBJECT

public:
    CustomButton(QWidget* parent = NULL);
    // 设置弧长及半径;
    void setRadiusValue(int radius);
    void setArcLength(int arcLength);
    void drawRotatedText(QPainter *painter, float degrees, int x, int y, const QString &text);

    QPixmap getPixmap(const int ping);
    QColor getColor(const int ping);
    int getLineNum(const int ping);
    QPixmap getSignalPixmap(const QColor &color,const int lineNum);//获取信号位图

	void setBeginDegree(int degree);



    void setStrUp(QString str){mStrUp = str;}
    void setStrLeft(QString str){mStrLeft = str;}
    void setStrDown(QString str){mStrDown = str;}
    void setStrRight(QString str){mStrRight = str;}

    void setTextModeEn(bool mode){m_bTextModeEn = mode;}


    void setSPLcolor(QColor color){colorSPL = color;update();}
    void setSectorColor(QColor color){mSectorColor = color;update();}
    void setBKGcolor(QColor color){colorBKG = color;update();}
    void setWidgetStyle(QString style);

    void setAxesVertical(bool axesVertical);

private:
     // 初始化按钮;
    void initButton();
    // 绘制按钮; 
    void paintEvent(QPaintEvent *);
    // 添加圆弧;
    void addArc(int x, int y, int startAngle, int angleLength, QColor color);

    // 鼠标事件;
    void mouseMoveEvent(QMouseEvent *event);
    void mousePressEvent(QMouseEvent *event);
    void mouseReleaseEvent(QMouseEvent *event);

    int analysisAngle(int x,int y);

signals:
    // 鼠标点击;
    void signalButtonClicked(int buttonId);
    // 鼠标松开;
    void signalButtonReleased(int buttonId);
private:
    // 弧长及半径;
    int m_radius, m_arcLength;

    // 圆弧路径;
    QList<QPainterPath> m_arcPathList;
    QList<QPainterPath> m_textPathList;
    // 圆弧颜色;
    QList<QBrush> m_colorList;
    // 当前鼠标按钮/进入 按钮的索引;
    int m_pressIndex, m_enterIndex;
    // 鼠标事件标志位;
    bool m_isMousePressed;
    bool m_isMouseEntered;

    QUADRANT_NUM mCurWorkRegion;

    QPoint mCenterRound;
    QPixmap mDegreePixmap;

    QString mStrUp;
    QString mStrLeft;
    QString mStrDown;
    QString mStrRight;

	bool m_bTextModeEn;

    QColor mSectorColor;


    //beijing分割线颜色
    QColor colorBKG = QColor(41, 44, 50);
    QColor colorSPL = QColor(32, 149, 216);
    QColor colorSectorUp2 = QColor(68, 68, 68);
    QColor colorSectorUp = QColor(60, 60, 60);
    QColor colorSectorDown = QColor(22, 22, 22);

    QColor colorbgGradient0 = QColor(24, 24, 24);
    QColor colorbgGradient1 = QColor(53, 57, 63);

    QColor colorExcircle0 = QColor(68, 68, 68);
    QColor colorExcircle5 = QColor(37, 40, 46);
    QColor colorExcircle9 = QColor(22, 22, 22);

    QColor colorInnerCircle0 = QColor(38, 40, 46);
    QColor colorInnerCircle9 = QColor(45, 48, 55);

    bool mAxesVertical = false;

};

有志之士完善后还望不吝赐教

完整代码:https://download.youkuaiyun.com/download/yu_20501253/11192876