基于QT的界面滑动切换

#include "clock_painter.h" #define PI 3.1416 Clock_Painter::Clock_Painter(QWidget *parent) : QWidget(parent) { timer = new QTimer(this); connect(timer,SIGNAL(timeout()),this,SLOT(update())); timer->start(1000); } void Clock_Painter::paintEvent(QPaintEvent *event) { QPainter painter(this); painter.setRenderHint(QPainter::Antialiasing); Draw_Clock(&painter); } void Clock_Painter::Draw_Clock(QPainter *painter) { Init_Parameter(); Set_Mask(painter); Draw_Broad(painter); Draw_Dial(painter); Draw_Text(painter); Draw_Pointer(painter); } void Clock_Painter::Init_Parameter() { Center_pos = QPoint(this->width()/2,this->height()/2); R_Edge = this->height()/2; R_Inside = R_Edge-10; R_Center = 15; R_Pointer = 6; QTime Time = QTime::currentTime(); H=Time.hour(); M=Time.minute(); S=Time.second(); } void Clock_Painter::Set_Mask(QPainter *painter) { painter->save(); QBrush brush = QBrush(Qt::transparent); painter->setBrush(brush); painter->fillRect(this->rect(),QColor(0,0,0,0)); painter->restore(); } void Clock_Painter::Draw_Broad(QPainter *painter) { painter->save(); QBrush brush = QBrush(Color_Edge); painter->setBrush(brush); painter->drawEllipse(Center_pos,R_Edge,R_Edge); brush = QBrush(Color_Inside); painter->setBrush(brush); painter->drawEllipse(Center_pos,R_Inside,R_Inside); brush = QBrush(Color_Center); painter->setBrush(brush); painter->drawEllipse(Center_pos,R_Center,R_Center); painter->restore(); } void Clock_Painter::Draw_Dial(QPainter *painter) { painter->save(); for(int Loop = 0; Loop <= Div_Max*Div_Min; Loop++) { float Angle = BaseAngle + (360 / (Div_Max * Div_Min))*Loop; int R = R_Inside-1; int x_start = Center_pos.x() + R * cos((Angle / 180) * PI); int y_start = Center_pos.y() + R * sin((Angle / 180) * PI); if(Loop % Div_Min == 0) { QPen pen(Qt::black); pen.setWidth(4); painter->setPen(pen); R = R_Inside-20; } else { QPen pen(Qt::black); pen.setWidth(2); painter->setPen(pen); R = R_Inside-15; } int x_end = Center_pos.x() + R * cos((Angle / 180) * PI); int y_end = Center_pos.y() + R * sin((Angle / 180) * PI); painter->drawLine(QPoint(x_start,y_start),QPoint(x_end,y_end)); } painter->restore(); } void Clock_Painter::Draw_Text(QPainter *painter) { painter->save(); QPen qPen(Qt::black); qPen.setWidth(5); //设置画笔的粗细 painter->setPen(qPen); QFont qFont("楷体",28,QFont::Bold,false); painter->setFont(qFont); int Dial_Text = 12; for(int Loop = 0;Loop < Div_Max;Loop++) { if(Dial_Text >12 ) Dial_Text = 1; int R = R_Inside-60; float Angle = BaseAngle + (360 / Div_Max )*Loop; int x = Center_pos.x() + R * cos((Angle / 180) * PI); int y = Center_pos.y() + R * sin((Angle / 180) * PI); painter->drawText(QRect(x-20,y-20,80,80),QString::number(Dial_Text++)); } painter->drawText(Center_pos.x()-60,Center_pos.y()+60,"劳力士"); painter->restore(); } void Clock_Painter::Draw_Pointer(QPainter *painter) { painter->save(); QBrush qBrush = QBrush(QColor(Qt::black)); painter->setBrush(qBrush); QPen qPen(Qt::black); qPen.setWidth(2); //设置画笔的粗细 painter->setPen(qPen); float Angle = BaseAngle + (360 / (Div_Max * Div_Min))*S; float RightAngle = Angle + 90;//右侧角度 float LeftAngle = Angle - 90;//左侧角度 int R = R_Inside-1; int x_start = Center_pos.x() + R * cos((Angle / 180) * PI); int y_start = Center_pos.y() + R * sin((Angle / 180) * PI); R = R_Pointer-1; int x_end1 = Center_pos.x() + R * cos(RightAngle * 3.14 / 180);//过圆心的右侧切点 int y_end1 = Center_pos.y() + R * sin(RightAngle * 3.14 / 180); int x_end2 = Center_pos.x() + R * cos(LeftAngle * 3.14 / 180);//过圆心的左侧切点 int y_end2 = Center_pos.y() + R * sin(LeftAngle * 3.14 / 180); QPointF qTriangle_S[3] = {QPoint(x_start,y_start),QPoint(x_end1,y_end1),QPoint(x_end2,y_end2)}; painter->drawPolygon(qTriangle_S,3); //************************************************************************************************** Angle = BaseAngle + (360 / (Div_Max * Div_Min))*M; RightAngle = Angle + 90;//右侧角度 LeftAngle = Angle - 90;//左侧角度 R = R_Inside-60; x_start = Center_pos.x() + R * cos((Angle / 180) * PI); y_start = Center_pos.y() + R * sin((Angle / 180) * PI); R = R_Pointer-1; x_end1 = Center_pos.x() + R * cos(RightAngle * 3.14 / 180);//过圆心的右侧切点 y_end1 = Center_pos.y() + R * sin(RightAngle * 3.14 / 180); x_end2 = Center_pos.x() + R * cos(LeftAngle * 3.14 / 180);//过圆心的左侧切点 y_end2 = Center_pos.y() + R * sin(LeftAngle * 3.14 / 180); QPointF qTriangle_M[3] = {QPoint(x_start,y_start),QPoint(x_end1,y_end1),QPoint(x_end2,y_end2)}; painter->drawPolygon(qTriangle_M,3); //************************************************************************************************** Angle = BaseAngle + (360 / Div_Max)*H; RightAngle = Angle + 90;//右侧角度 LeftAngle = Angle - 90;//左侧角度 R = R_Inside-120; x_start = Center_pos.x() + R * cos((Angle / 180) * PI); y_start = Center_pos.y() + R * sin((Angle / 180) * PI); R = R_Pointer-1; x_end1 = Center_pos.x() + R * cos(RightAngle * 3.14 / 180);//过圆心的右侧切点 y_end1 = Center_pos.y() + R * sin(RightAngle * 3.14 / 180); x_end2 = Center_pos.x() + R * cos(LeftAngle * 3.14 / 180);//过圆心的左侧切点 y_end2 = Center_pos.y() + R * sin(LeftAngle * 3.14 / 180); QPointF qTriangle_H[3] = {QPoint(x_start,y_start),QPoint(x_end1,y_end1),QPoint(x_end2,y_end2)}; painter->drawPolygon(qTriangle_H,3); painter->restore(); }