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這篇文章將為大家詳細(xì)講解有關(guān)Qt如何實(shí)現(xiàn)蘋果狀態(tài)切換按鈕的方法,小編覺得挺實(shí)用的,因此分享給大家做個(gè)參考,希望大家閱讀完這篇文章后可以有所收獲。
代碼如下
#include "button.h" #include <QDebug> Button::Button(QWidget *parent) : QPushButton(parent) { status = 0; span_length = 0; rl_flag = false; release_flag =true; timeline = new QTimeLine; connect(timeline,SIGNAL(frameChanged(int)),this,SLOT(timeOut(int))); } void Button::paintEvent(QPaintEvent *e) { QPainter painter(this); painter.setRenderHint(QPainter::Antialiasing, true); QPen pen; pen.setWidth(2); pen.setColor(QColor(219,219,219)); painter.setPen(pen); painter.setBrush(Qt::green); painter.drawRoundedRect(1,1,this->width()-2,this->height()-2,30,30); painter.setBrush(Qt::white); painter.setPen(pen); if(!rl_flag){ switch(status) { case 0:painter.drawEllipse(1,1,this->height()-3,this->height()-3);break; case 1:painter.drawRoundedRect(1,1,span_length,this->height()-2,30,30);break; case 2:painter.drawEllipse(this->width()+3-this->height(),1,this->height()-3,this->height()-3);rl_flag=true;status=0;break; } }else{ switch(status) { case 0:painter.drawEllipse(this->width()+3-this->height(),1,this->height()-3,this->height()-3);break; case 1:painter.drawRoundedRect(this->width()-1-span_length,1,span_length,this->height()-2,30,30);break; case 2:painter.drawEllipse(1,1,this->height()-3,this->height()-3);rl_flag=false;status=0;break; } } } void Button::drawSpan(QPainter painter,int s) { } void Button::mousePressEvent(QMouseEvent *e) { timeline->setDuration(400); span_length = 0; status=1; if(!rl_flag){ int r1 = this->height()-3; int r2 = (this->width()/4*3)>r1?(this->width()/4*3):r1; timeline->setFrameRange(r1,r2); }else{ int r1 = this->height()-3; int r2 = (this->width()/4*3)>r1?(this->width()/4*3):r1;//(this->width()/4*1)>r1?(this->width()/4*1):r1; timeline->setFrameRange(r1,r2); } timeline->start(); } void Button::mouseMoveEvent(QMouseEvent *e) { } void Button::mouseReleaseEvent(QMouseEvent *e) { timeline->stop(); status = 2; update(); } void Button::timeOut(int x) { status = 1; span_length = x; update(); }
關(guān)于Qt如何實(shí)現(xiàn)蘋果狀態(tài)切換按鈕的方法就分享到這里了,希望以上內(nèi)容可以對(duì)大家有一定的幫助,可以學(xué)到更多知識(shí)。如果覺得文章不錯(cuò),可以把它分享出去讓更多的人看到。
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