#pragma?execution_character_set（“utf-8“）

#include?“barruler.h“
#include?“qpainter.h“
#include?“qtimer.h“
#include?“qdebug.h“

BarRuler::BarRuler（QWidget?*parent）?:?QWidget（parent）
{????
????minValue?=?0;
????maxValue?=?100;
????value?=?0;

????precision?=?0;
????longStep?=?10;
????shortStep?=?1;
????space?=?20;

????animation?=?false;
????animationStep?=?0.5;

????bgColorStart?=?QColor（100?100?100）;
????bgColorEnd?=?QColor（60?60?60）;
????lineColor?=?QColor（255?255?255）;

????barBgColor?=?QColor（220?220?220）;
????barColor?=?QColor（100?184?255）;

????reverse?=?false;
????currentValue?=?0;
????timer?=?new?QTimer（this）;
????timer->setInterval（10）;
????connect（timer?SIGNAL（timeout（））?this?SLOT（updateValue（）））;

????setFont（QFont（“Arial“?8））;
}

BarRuler::~BarRuler（）
{
????if?（timer->isActive（））?{
????????timer->stop（）;
????}
}

void?BarRuler::paintEvent（QPaintEvent?*）
{
????//繪制準備工作啟用反鋸齒
????QPainter?painter（this）;
????painter.setRenderHints（QPainter::Antialiasing?|?QPainter::TextAntialiasing）;

????//繪制背景
????drawBg（&painter）;
????//繪制標尺
????drawRuler（&painter）;
????//繪制柱狀背景
????drawBarBg（&painter）;
????//繪制柱狀
????drawBar（&painter）;
}

void?BarRuler::drawBg（QPainter?*painter）
{
????painter->save（）;
????painter->setPen（Qt::NoPen）;
????QLinearGradient?bgGradient（QPointF（0?0）?QPointF（0?height（）））;
????bgGradient.setColorAt（0.0?bgColorStart）;
????bgGradient.setColorAt（1.0?bgColorEnd）;
????painter->setBrush（bgGradient）;
????painter->drawRect（rect（））;
????painter->restore（）;
}

void?BarRuler::drawRuler（QPainter?*painter）
{
????painter->save（）;
????painter->setPen（lineColor）;

????//繪制縱向標尺線?20的長度為刻度尺文字的寬度
????double?initX?=?space?+?20;
????double?initY?=?space;
????QPointF?topPot（initX?initY）;
????QPointF?bottomPot（initX?height（）?-?space）;
????painter->drawLine（topPot?bottomPot）;

????//繪制縱向標尺刻度
????double?length?=?height（）?-?2?*?space;
????//計算每一格移動多少
????double?increment?=?length?/?（maxValue?-?minValue）;
????//長線條短線條長度
????int?longLineLen?=?10;
????int?shortLineLen?=?7;

????//根據范圍值繪制刻度值及刻度值
????for?（int?i?=?maxValue;?i?>=?minValue;?i?=?i?-?shortStep）?{
????????if?（i?%?longStep?==?0）?{
????????????QPointF?leftPot（initX?+?longLineLen?initY）;
????????????QPointF?rightPot（initX?initY）;
????????????painter->drawLine（leftPot?rightPot）;

????????????QString?strValue?=?QString（“%1“）.arg（（double）i?0?‘f‘?precision）;
????????????double?fontWidth?=?painter->fontMetrics（）.width（strValue）;
????????????double?fontHeight?=?painter->fontMetrics（）.height（）;
????????????QPointF?textPot（initX?-?fontWidth?-?5?initY?+?fontHeight?/?3）;
????????????painter->drawText（textPot?strValue）;
????????}?else?{
????????????if?（i?%?（longStep?/?2）?==?0）?{
????????????????shortLineLen?=?7;
????????????}?else?{
????????????????shortLineLen?=?4;
????????????}

????????????QPointF?leftPot（initX?+?shortLineLen?initY）;
????????????QPointF?rightPot（initX

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????9331??2017-02-07?17:29??barruler?自繪尺條\barruler.cpp

?????文件???????5019??2017-02-10?17:11??barruler?自繪尺條\barruler.h

?????文件????????456??2017-02-08?09:33??barruler?自繪尺條\barruler.pro

?????文件??????23790??2017-12-28?18:05??barruler?自繪尺條\barruler.pro.user

?????文件????????937??2018-12-15?11:13??barruler?自繪尺條\barruler.sln

????..A..H.?????24064??2019-03-21?10:15??barruler?自繪尺條\barruler.v12.suo

?????文件??????15530??2018-12-15?10:42??barruler?自繪尺條\barruler.vcxproj

?????文件???????3557??2018-12-15?10:42??barruler?自繪尺條\barruler.vcxproj.filters

?????文件????????629??2018-12-15?10:42??barruler?自繪尺條\barruler.vcxproj.user

?????文件??????13096??2019-03-21?10:12??barruler?自繪尺條\Debug\moc_barruler.cpp

?????文件???????3606??2019-03-21?10:12??barruler?自繪尺條\Debug\moc_frmbarruler.cpp

?????文件????????850??2017-01-06?10:42??barruler?自繪尺條\frmbarruler.cpp

?????文件????????367??2017-01-06?08:57??barruler?自繪尺條\frmbarruler.h

?????文件???????2488??2018-12-15?11:13??barruler?自繪尺條\frmbarruler.ui

?????文件???????3080??2019-03-21?10:12??barruler?自繪尺條\GeneratedFiles\ui_frmbarruler.h

?????文件????????185??2017-02-08?09:32??barruler?自繪尺條\main.cpp

?????目錄??????????0??2018-12-15?10:42??barruler?自繪尺條\Debug

?????目錄??????????0??2018-12-15?10:42??barruler?自繪尺條\GeneratedFiles

?????目錄??????????0??2018-12-15?10:42??barruler?自繪尺條\Release

?????目錄??????????0??2019-03-21?10:16??barruler?自繪尺條

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

???????????????106985????????????????????20