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.csdn.net/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.csdn.net/download/yu_20501253/11192876
