QT自定义之滑动开关
本文实例为大家分享了QT自定义之滑动开关的具体代码,供大家参考,具体内容如下
写了一个简单的滑动开关,不多说,上图:
代码如下:
#ifndefSLIDERBUTTON_H #defineSLIDERBUTTON_H #include#include #include #include #include #include #include #include #include namespaceUi{ classSliderButton; } classSliderButton:publicQWidget { Q_OBJECT public: explicitSliderButton(QWidget*parent=nullptr); ~SliderButton(); voidset_button_size(constint&w,constint&h); voidset_button_color(constQColor&,constQColor&,constQColor&); signals: voidsignal_button_on(); voidsignal_button_off(); protected: virtualvoidmousePressEvent(QMouseEvent*event); virtualvoidpaintEvent(QPaintEvent*event); publicslots: voidslot_update(); private: boolm_button_status; intm_circle_width; intm_button_pos; intm_move_distance; QColorm_backcolor_on; QColorm_backcolor_off; QColorm_circle_color; QTimer*m_timer; }; #endif//SLIDERBUTTON_H
set_button_size可设置button大小。
set_button_color可设置button颜色
#include"sliderbutton.h" SliderButton::SliderButton(QWidget*parent): QWidget(parent), m_button_status(false), m_circle_width(30), m_button_pos(0), m_move_distance(20), m_backcolor_on(Qt::red), m_backcolor_off(Qt::blue), m_circle_color(Qt::black) { setWindowFlags(Qt::FramelessWindowHint); setAttribute(Qt::WA_TranslucentBackground); m_timer=newQTimer(this); connect(m_timer,SIGNAL(timeout()),this,SLOT(slot_update())); } SliderButton::~SliderButton() { } voidSliderButton::set_button_size(constint&width,constint&heigh) { m_circle_width=heigh; m_move_distance=width; } voidSliderButton::set_button_color(constQColor&on_color,constQColor&off_color,constQColor&button_color) { m_backcolor_on=on_color; m_backcolor_off=off_color; m_circle_color=button_color; } voidSliderButton::mousePressEvent(QMouseEvent*event) { Q_UNUSED(event) if(false==m_button_status) { m_button_status=true; emitsignal_button_off(); } else { m_button_status=false; emitsignal_button_on(); } m_timer->start(1); } voidSliderButton::paintEvent(QPaintEvent*event) { Q_UNUSED(event); QPainterpainter(this); QPainterPathpath; painter.setRenderHint(QPainter::Antialiasing,true); if(m_button_status==true) { painter.setBrush(m_backcolor_off); } else { painter.setBrush(m_backcolor_on); } QRectrect(0,0,m_circle_width,m_circle_width); intstartX=rect.left()+rect.width()/2; intstartY=rect.top(); path.moveTo(startX,startY); path.arcTo(QRect(rect.left(),rect.top(),rect.width(),rect.height()),90,180); path.lineTo((rect.left()+m_move_distance),rect.bottom()+1);//thegraphnotconnet,neet1pixcel path.arcTo(QRect((startX+m_move_distance),rect.top(),rect.width(),rect.height()),270,180); path.lineTo(startX,startY); painter.drawPath(path); //drawsmallcircle painter.setBrush(m_circle_color); painter.drawEllipse(m_button_pos,0,m_circle_width,m_circle_width); } voidSliderButton::slot_update() { if(m_button_status==true) { m_button_pos+=1; if(m_button_pos==m_move_distance+m_circle_width/2) { m_timer->stop(); } } elseif(m_button_status==false) { m_button_pos-=1; if(m_button_pos==0) { m_timer->stop(); } } update(); }
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持毛票票。
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