QT控件大全 九 Qnightcharts
来源：互联网 发布：aps.net程序员招聘 编辑：程序博客网 时间：2024/05/20 11:47
效果如下：
核心代码：
#ifndef NIGHTCHARTS_H#define NIGHTCHARTS_H#define PerConst = 3.6;#include <QObject>#include <QPainter>#include <QVector>#include <QDebug>#include <QLinearGradient>#include <math.h>class pieceNC{public: explicit pieceNC(); void addName(QString name); void setColor(Qt::GlobalColor); void setColor(QColor color); void setPerc(float Percentage); QString pname; QColor rgbColor; float pPerc;private:};class Nightcharts{public: explicit Nightcharts(); ~Nightcharts(); enum type { Histogramm , Pie, Dpie }; enum legend_type{ /*Horizontal,*/ Vertical, Round }; int addPiece(QString name,Qt::GlobalColor,float Percentage); int addPiece(QString name,QColor, float Percentage); int setCords(double x, double y, double w, double h); int setLegendCords(double x, double y); int setType(Nightcharts::type t); int setLegendType(Nightcharts::legend_type t); int setShadows(bool ok = true); int setFont(QFont f); int draw(QPainter *painter); int drawLegend(QPainter *painter); int pieceCount(); double palpha;private: double cX,cY,cW,cH,pW,lX,lY; int nPiece; bool shadows; QVector<pieceNC> pieces; int ctype, cltype; QFont font; //QPainter *cpainter; QPointF GetPoint(double angle, double R1 = 0, double R2 = 0); int GetQuater(double angle); double Angle360(double angle);signals:public slots:};#endif // NIGHTCHARTS_H#define _USE_MATH_DEFINES#include "nightcharts.h"Nightcharts::Nightcharts()//QPainter *painter){ font.setFamily("verdana"); font.setPixelSize(15); //painter = painter; //painter->setFont(font); ctype = Nightcharts::Dpie; cltype = Nightcharts::Vertical; cX = 0; cY = 0; cW = 100; cH = 100; lX = cX+cW+20; lY = cY; shadows = true;}Nightcharts::~Nightcharts(){ pieces.clear();}int Nightcharts::addPiece(QString name,Qt::GlobalColor color,float Percentage){ this->nPiece++; pieceNC piece; piece.addName(name); piece.setColor(color); piece.setPerc(Percentage); pieces.append(piece); return 0;}int Nightcharts::addPiece(QString name, QColor color, float Percentage){ this->nPiece++; pieceNC piece; piece.addName(name); piece.setColor(color); piece.setPerc(Percentage); pieces.append(piece); return 0;}int Nightcharts::setCords(double x, double y, double w, double h){ this->cX = x; this->cY = y; this->cW = w; this->cH = h; this->lX = cX+cW+20; this->lY = cY; return 0;}int Nightcharts::setLegendCords(double x, double y){ this->lX = x; this->lY = y; return 0;}int Nightcharts::setType(Nightcharts::type t){ this->ctype = t; return 0;}int Nightcharts::setLegendType(Nightcharts::legend_type t){ this->cltype = t; return 0;}int Nightcharts::setFont(QFont f){ this->font = f; return 0;}int Nightcharts::setShadows(bool ok){ this->shadows = ok; return 0;}int Nightcharts::draw(QPainter *painter){ painter->setRenderHint(QPainter::Antialiasing); painter->setPen(Qt::NoPen); if (this->ctype==Nightcharts::Pie) { pW = 0; double pdegree = 0; //Options QLinearGradient gradient(cX+0.5*cW,cY,cX+0.5*cW,cY+cH*2.5); gradient.setColorAt(1,Qt::black); //Draw //pdegree = (360/100)*pieces[i].pPerc; if (shadows) { double sumangle = 0; for (int i=0;i<pieces.size();i++) { sumangle += 3.6*pieces[i].pPerc; } painter->setBrush(Qt::darkGray); painter->drawPie(cX,cY+pW+5,cW,cH,palpha*16,sumangle*16); } QPen pen; pen.setWidth(2); for (int i=0;i<pieces.size();i++) { gradient.setColorAt(0,pieces[i].rgbColor); painter->setBrush(gradient); pen.setColor(pieces[i].rgbColor); painter->setPen(pen); pdegree = 3.6*pieces[i].pPerc; painter->drawPie(cX,cY,cW,cH,palpha*16,pdegree*16); palpha += pdegree; } } else if (this->ctype==Nightcharts::Dpie) { pW = 50; double pdegree = 0; QPointF p; QLinearGradient gradient(cX-0.5*cW,cY+cH/2,cX+1.5*cW,cY+cH/2); gradient.setColorAt(0,Qt::black); gradient.setColorAt(1,Qt::white); QLinearGradient gradient_side(cX,cY+cH,cX+cW,cY+cH); gradient_side.setColorAt(0,Qt::black); double sumangle = 0; for (int i=0;i<pieces.size();i++) { sumangle += 3.6*pieces[i].pPerc; } if (shadows) { painter->setBrush(Qt::darkGray); painter->drawPie(cX,cY+pW+5,cW,cH,palpha*16,sumangle*16); } int q = GetQuater(palpha+sumangle); if (q ==2 || q==3) { QPointF p = GetPoint(palpha+sumangle); QPointF points[4] = { QPointF(p.x(),p.y()), QPointF(p.x(),p.y()+pW), QPointF(cX+cW/2,cY+cH/2+pW), QPointF(cX+cW/2,cY+cH/2) }; gradient_side.setColorAt(1,pieces[pieces.size()-1].rgbColor); painter->setBrush(gradient_side); painter->drawPolygon(points,4); } p = GetPoint(palpha); q = GetQuater(palpha); if (q ==1 || q==4) { QPointF points[4] = { QPointF(p.x(),p.y()), QPointF(p.x(),p.y()+pW), QPointF(cX+cW/2,cY+cH/2+pW), QPointF(cX+cW/2,cY+cH/2) }; gradient_side.setColorAt(1,pieces[0].rgbColor); painter->setBrush(gradient_side); painter->drawPolygon(points,4); } for (int i=0;i<pieces.size();i++) { gradient.setColorAt(0.5,pieces[i].rgbColor); painter->setBrush(gradient); pdegree = 3.6*pieces[i].pPerc; painter->drawPie(cX,cY,cW,cH,palpha*16,pdegree*16); double a_ = Angle360(palpha); int q_ = GetQuater(palpha); palpha += pdegree; double a = Angle360(palpha); int q = GetQuater(palpha); QPainterPath path; p = GetPoint(palpha); if((q == 3 || q == 4) && (q_ == 3 || q_ == 4)) { // 1) if (a>a_) { QPointF p_old = GetPoint(palpha-pdegree); path.moveTo(p_old.x()-1,p_old.y()); path.arcTo(cX,cY,cW,cH,palpha-pdegree,pdegree); path.lineTo(p.x(),p.y()+pW); path.arcTo(cX,cY+pW,cW,cH,palpha,-pdegree); } // 2) else { path.moveTo(cX,cY+cH/2); path.arcTo(cX,cY,cW,cH,180,Angle360(palpha)-180); path.lineTo(p.x(),p.y()+pW); path.arcTo(cX,cY+pW,cW,cH,Angle360(palpha),-Angle360(palpha)+180); path.lineTo(cX,cY+cH/2); path.moveTo(p.x(),p.y()); path.arcTo(cX,cY,cW,cH,palpha-pdegree,360-Angle360(palpha-pdegree)); path.lineTo(cX+cW,cY+cH/2+pW); path.arcTo(cX,cY+pW,cW,cH,0,-360+Angle360(palpha-pdegree)); } } // 3) else if((q == 3 || q == 4) && (q_ == 1 || q_ == 2) && a>a_ ) { path.moveTo(cX,cY+cH/2); path.arcTo(cX,cY,cW,cH,180,Angle360(palpha)-180); path.lineTo(p.x(),p.y()+pW); path.arcTo(cX,cY+pW,cW,cH,Angle360(palpha),-Angle360(palpha)+180); path.lineTo(cX,cY+cH/2); } // 4) else if((q == 1 || q == 2) && (q_ == 3 || q_ == 4) && a<a_) { p = GetPoint(palpha-pdegree); path.moveTo(p.x(),p.y()); path.arcTo(cX,cY,cW,cH,palpha-pdegree,360-Angle360(palpha-pdegree)); path.lineTo(cX+cW,cY+cH/2+pW); path.arcTo(cX,cY+pW,cW,cH,0,-360+Angle360(palpha-pdegree)); } // 5) else if((q ==1 || q==2) && (q_==1 || q_==2) && a<a_) { path.moveTo(cX,cY+cH/2); path.arcTo(cX,cY,cW,cH,180,180); path.lineTo(cX+cW,cY+cH/2+pW); path.arcTo(cX,cY+pW,cW,cH,0,-180); path.lineTo(cX,cY+cH/2); } if (!path.isEmpty()) { gradient_side.setColorAt(1,pieces[i].rgbColor); painter->setBrush(gradient_side); painter->drawPath(path); } } } else if (this->ctype==Nightcharts::Histogramm) { double pDist = 15; double pW = (cW-(pieces.size())*pDist)/pieces.size(); QLinearGradient gradient(cX+cW/2,cY,cX+cW/2,cY+cH); gradient.setColorAt(0,Qt::black); QPen pen; pen.setWidth(3); for (int i=0;i<pieces.size();i++) { if (shadows) { painter->setPen(Qt::NoPen); painter->setBrush(Qt::darkGray); painter->drawRect(cX+pDist+i*(pW + pDist)-pDist/2,cY+cH-1,pW,-cH/100*pieces[i].pPerc+pDist/2-5); } gradient.setColorAt(1,pieces[i].rgbColor); painter->setBrush(gradient); pen.setColor(pieces[i].rgbColor); painter->setPen(pen); painter->drawRect(cX+pDist+i*(pW + pDist),cY+cH,pW,-cH/100*pieces[i].pPerc-5); QString label = QString::number(pieces[i].pPerc)+"%"; painter->setPen(Qt::SolidLine); painter->drawText(cX+pDist+i*(pW + pDist)+pW/2-painter->fontMetrics().width(label)/2,cY+cH-cH/100*pieces[i].pPerc-painter->fontMetrics().height()/2,label); } painter->setPen(Qt::SolidLine); for (int i=1;i<10;i++) { painter->drawLine(cX-3,cY+cH/10*i,cX+3,cY+cH/10*i); //äåëåíèÿ ïî îñè Y //painter->drawText(cX-20,cY+cH/10*i,QString::number((10-i)*10)+"%"); } painter->drawLine(cX,cY+cH,cX,cY); //îñü Y painter->drawLine(cX,cY,cX+4,cY+10); //ñòðåëêè painter->drawLine(cX,cY,cX-4,cY+10); painter->drawLine(cX,cY+cH,cX+cW,cY+cH); //îñü Õ } return 0;}int Nightcharts::drawLegend(QPainter *painter){ //double ptext = 25; double angle = palpha; painter->setPen(Qt::SolidLine); switch(cltype) { /*case Nightcharts::Horizontal: { int dist = 5; painter->setBrush(Qt::white); float x = cX; float y = cY+cH+20+dist; //painter->drawRoundRect(cX+cW+20,cY,dist*2+200,pieces.size()*(fontmetr.height()+2*dist)+dist,15,15); for (int i=0;i<pieces.size();i++) { painter->setBrush(pieces[i].rgbColor); x += fontmetr.height()+2*dist; if (i%3 == 0) { x = cX; y += dist+fontmetr.height(); } painter->drawRect(x,y,fontmetr.height(),fontmetr.height()); QString label = pieces[i].pname + " - " + QString::number(pieces[i].pPerc)+"%"; painter->drawText(x+fontmetr.height()+dist,y+fontmetr.height()/2+dist,label); x += fontmetr.width(label); } break; }*/ case Nightcharts::Vertical: { int dist = 5; painter->setBrush(Qt::white); //painter->drawRoundRect(cX+cW+20,cY,dist*2+200,pieces.size()*(painter->fontMetrics().height()+2*dist)+dist,15,15); for (int i=pieces.size()-1;i>=0;i--) { painter->setBrush(pieces[i].rgbColor); float x = lX+dist; float y = lY+dist+i*(painter->fontMetrics().height()+2*dist); painter->drawRect(x,y,painter->fontMetrics().height(),painter->fontMetrics().height()); painter->drawText(x+painter->fontMetrics().height()+dist,y+painter->fontMetrics().height()/2+dist,pieces[i].pname + " - " + QString::number(pieces[i].pPerc)+"%"); } break; } case Nightcharts::Round: for (int i=pieces.size()-1;i>=0;i--) { float len = 100; double pdegree = 3.6*pieces[i].pPerc; angle -= pdegree/2; QPointF p = GetPoint(angle); QPointF p_ = GetPoint(angle, cW+len,cH+len); int q = GetQuater(angle); if (q == 3 || q == 4) { p.setY(p.y()+pW/2); p_.setY(p_.y()+pW/2); } painter->drawLine(p.x(),p.y(),p_.x(),p_.y()); QString label = pieces[i].pname + " - " + QString::number(pieces[i].pPerc)+"%"; float recW = painter->fontMetrics().width(label)+10; float recH = painter->fontMetrics().height()+10; p_.setX(p_.x()-recW/2 + recW/2*cos(angle*M_PI/180)); p_.setY(p_.y()+recH/2 + recH/2*sin(angle*M_PI/180)); painter->setBrush(Qt::white); painter->drawRoundRect(p_.x() ,p_.y(), recW, -recH); painter->drawText(p_.x()+5, p_.y()-recH/2+5, label); angle -= pdegree/2; } break; }}QPointF Nightcharts::GetPoint(double angle, double R1, double R2){ if (R1 == 0 && R2 == 0) { R1 = cW; R2 = cH; } QPointF point; double x = R1/2*cos(angle*M_PI/180); x+=cW/2+cX; double y = -R2/2*sin(angle*M_PI/180); y+=cH/2+cY; point.setX(x); point.setY(y); return point;}int Nightcharts::GetQuater(double angle){ angle = Angle360(angle); if(angle>=0 && angle<90) return 1; if(angle>=90 && angle<180) return 2; if(angle>=180 && angle<270) return 3; if(angle>=270 && angle<360) return 4;}double Nightcharts::Angle360(double angle){ int i = (int)angle; double delta = angle - i; return (i%360 + delta);}pieceNC::pieceNC(){}void pieceNC::addName(QString name){ pname = name;}void pieceNC::setColor(Qt::GlobalColor color){ rgbColor = color;}void pieceNC::setColor(QColor color){ rgbColor = color;}void pieceNC::setPerc(float Percentage){ pPerc = Percentage;}int Nightcharts::pieceCount(){ return pieces.count();}源码工程：QQ:609162385
阅读全文
0 0
- QT控件大全 九 Qnightcharts
- Qt编写自定义控件大全
- QT控件大全一AnalogWidgets
- QT控件大全二VirtualKeyboard
- QT控件大全三QLed
- QT控件大全四QMeter
- QT控件大全五QProgressIndicator
- QT控件大全 六 QVUMeter
- QT控件大全 七 QProg
- QT控件大全 八 QNeedleIndicator
- QT控件大全 十 QPower
- QT控件大全 十一 QLock
- QT控件大全 十二 QScale
- QT控件大全 十三 WidgetMarqueeLabel
- QT控件大全 十四 QProgressmeter
- QT控件大全 十五 QPot
- QT控件大全 十五 QOpenChart
- QT控件大全 十六 QChartXY
- 使用sklearn中的神经网络模块MLPClassifier处理分类问题
- 欢迎使用CSDN-markdown编辑器
- 宽残差网络——WRN
- c注释转换为cpp注释
- 详细了解并发-多线程关键字：volatile
- QT控件大全 九 Qnightcharts
- 了解html base标签的作用
- 小拓展 大知识
- LeetCode 29. Divide Two Integers
- 企业级界面开发工具包Essential Studio Enterprise Edition发布2017 v4丨附下载
- vim 超强配置
- 【Scikit-Learn 中文文档】监督学习：从高维观察预测输出变量
- Ansible基础元素介绍
- C++性能优化实践
