qt qml c++ 折线图

qt qml c++ 折线图

#include “linechart.h“
#include 
#include 
#include 

//               1   2   3   4   5   6   7   8   9   10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26 27 28 29 30 31
int traffic[31]={70030060062264480072377750080076672823424522267844377823590092361884598128300 0 0 0 0 0};

LineChart::LineChart（QQuickPaintedItem *parent） :
    QQuickPaintedItem（parent）
{
    //setFlag（QGraphicsItem::ItemHasNoContents false）;
    monthCount= 0;
    nameWidth= 0;
    monthNow= 0;
    topDistance=120;
}
void LineChart::paint（QPainter *painter）
{
    QDateTime current_date_time = QDateTime::currentDateTime（）;
    painter->setRenderHint（QPainter::Antialiasing）;//平滑直线
    monthNow= current_date_time.date（）.month（）;
    dayNow= current_date_time.date（）.day（）;
    if（monthNow==2）{
        nameWidth=120*28+2;
        monthCount = 28;
    }else if（monthNow==1||monthNow==3||monthNow==5||monthNow==7
             ||monthNow==8||monthNow==10||monthNow==12）{
        nameWidth=120*31+2;
        monthCount = 31;
    }else{
        nameWidth=120*30+2;
        monthCount = 30;
    }
    int i=0;
    int flag=0;
    for（;i<31;i++）{
        if（flag            flag=traffic[i];
        }
    }
    painter->translate（0530）;//设置原点位置
    QPen penLine（Qt::white3）;
    painter->setPen（penLine）;
    for （int var = 0; var < dayNow; ++var） {
        if（var==0）{
            painter->drawLine（0060-traffic[var]*（530-topDistance）/flag）;
        }else{
            painter->drawLine（（60+（var-1）*120）-traffic[var-1]*（530-topDistance）/flag120*var+60-traffic[var]*（530-topDistance）/flag）;
        }
    }

    for （int var = 0; var < dayNow; ++var） {
        if（var==（dayNow-1））{
            QPen Endpoint（Qt::white10）;
            painter->setPen（Endpoint）;
            painter->drawEllipse（（60+var*120）-5（-traffic[var]*（530-topDistance）/flag）-51010）;//-5
        }else{
            //009955
//            QPen Endpoint（Qt::white3）;
//            painter->setPen（Endpoint）;
//            painter->drawEllipse（（60+var*120）-5（-traffic[var]*（530-topDistance）/flag）-51010）;//-5
//            QColor insideBrushColor0（01538525）;
//            painter->setBrush（insideBrushColor0）;
//            QPen penpoints0（insideBrushColor010）;
//            painter->setPen（penpoints0）;
            painter->drawEllipse（（60+var*120）-5（-traffic[var]*（530-topDistance）/flag）-51010）;//-5
        }
    }
    QPen Vertical（Qt::white1）;
    painter->setPen（Vertical）;
    for （int var = 0; var < dayNow; ++var） {
        painter->drawLine（（60+var*120）0（60+var*120）-traffic[var]*（530-topDistance）/flag+5）;
    }
    QFont notToday（“white“20）;
    painter->setFont（notToday）;
    for （int var = 0; var < dayNow; ++var） {
        if（var==（dayNow-1））{
            QFont isToday（“white“30）;
            painter->setFont（isToday）;
            QString flagstr=““;
            painter->drawText（（60+var*120-60）-traffic[var]*（530-topDistan

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件        3008  2014-03-26 08:50  chapter-line\chapter-line.pro.user
     文件       47231  2014-03-26 08:50  chapter-line\Makefile
     文件        2477  2014-03-26 08:44  chapter-line\main.cpp
     文件         646  2014-03-26 08:44  chapter-line\linechart.h
     文件        4366  2014-03-26 08:44  chapter-line\linechart.cpp
     文件       49414  2014-03-26 08:46  chapter-line\chapter-line
     文件         371  2014-03-26 08:49  chapter-line\chapter-line.pro
     文件        5619  2014-03-26 08:44  chapter-line\app.qml
     目录           0  2014-03-26 08:50  chapter-line\