#include?“carwidget.h“
#include?
#include?
#include?


CarWidget::CarWidget（QWidget?*parent）?:?QWidget（parent）
{
????m_iCar?=?76;
????m_iCarWidth?=?0;
????m_index?=?0;
????m_type?=?Left;
????m_bgColor?=?QColor（686868）;
????m_carColor?=?QColor（20190150）;
????m_textColor?=?QColor（255255255）;
????m_iSize?=?10;
}

CarWidget::~CarWidget（）
{

}

void?CarWidget::paintEvent（QPaintEvent?*p）
{
????QPainter?painter（this）;

????//繪制背景色
????painter.setBrush（m_bgColor）;
????painter.setPen（m_bgColor）;
????painter.drawRect（rect（））;

????paintCar（painter）;

????return?QWidget::paintEvent（p）;
}

void?CarWidget::resizeEvent（QResizeEvent?*）
{
????calc（）;
????update（）;
}


void?CarWidget::calc（）
{
????QRect?rect?=?this->geometry（）;

????//圓的直徑
????int?iDiameter?=?rect.width（）?
????//上下留5個(gè)像素
????m_iDiameter?=?iDiameter?-?10;

????m_iLeft?=?m_iDiameter?*?3?/?100?>?0???m_iDiameter?*?3?/?100?:?3;
????m_iRight?=?width（）?-?m_iDiameter?+?m_iLeft;

????int?iLength?=?3.14?*?m_iDiameter?+?2?*?（?width（）?-?m_iDiameter?）;

????//平均的距離
????m_iCarWidth?=?iLength?/?（?m_iCar?*?1.5?）;
}

void?CarWidget::paintCar（QPainter?&painter）
{
????//Y的高度
????int?iHeight?=?（height（）?-?m_iDiameter）?/?2?+?m_iCarWidth;

????painter.setRenderHint（QPainter::Antialiasing?true）;
????painter.setPen（m_carColor）;

????QPainterPath?path;
????path.addEllipse（m_iCarWidth??iHeight??m_iDiameter?-?m_iCarWidth?*?2?m_iDiameter?-?m_iCarWidth?*?2）;
????QPainterPath?pathRect;
????pathRect.addRect（m_iDiameter?/?2??+?m_iCarWidth
?????????????????????iHeight?
?????????????????????width（）?-?m_iDiameter?-?m_iCarWidth?*?2
?????????????????????m_iDiameter?-?m_iCarWidth?*?2）;

????path?=?path.united（pathRect）;
????pathRect.addEllipse（width（）?-?m_iDiameter?+?m_iCarWidth??
????????????????????????iHeight?
????????????????????????m_iDiameter?-?m_iCarWidth?*?2
????????????????????????m_iDiameter?-?m_iCarWidth?*?2）;
????path?=?path.united（pathRect）;
????//painter.drawPath（path）;
????QFont?font;
????font.setPointSize（m_iSize）;
????painter.setFont（font）;


????if（m_type?==?Right）
????{
????????if（m_index?>=?m_iCar）
????????{
????????????m_index?=?0;
????????}
????}
????else?if（m_type?==?Left）
????{
????????if（m_index?<=?-m_iCar）
????????{
????????????m_index?=?0;
????????}
????}

????for（int?i?=?0?;?i?????{
????????QPointF?point?=?path.pointAtPercent（i?/?（m_iCar?*?1.0））;
????????int?index?=?m_type?==?Right???（i??+?m_index）?%?m_iCar?+?1?:?（i??+?m_iCar?+?m_index）?%?m_iCar?+?1;

????????painter.setPen（m_textColor）;
????????painter.drawText（point??QString（“%1“）.arg（index））;
????????mapColorCar::iterator?iter?=?m_mapCar.find（index）;
????????if（?iter?!=?m_mapCar.end（））
????????{
????????????painter.setPen（iter.value（））;
????????????painter.setBrush（iter.value（））;
????????}
????????else
????????{
????????????pain

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????3739??2018-08-13?14:41??跑馬燈\carwidget.cpp

?????文件???????3306??2018-08-13?14:41??跑馬燈\carwidget.h

?????目錄??????????0??2018-08-13?15:07??跑馬燈

-----------?---------??----------?-----??----

?????????????????7045????????????????????3