139 lines
5.5 KiB
C++
139 lines
5.5 KiB
C++
#include "titlebar.h"
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#include "ledindicator.h"
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#include "appcontext.h"
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#include "car.h"
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#include <QGridLayout>
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#include <QHBoxLayout>
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#include <QLabel>
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#include "global.h"
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namespace {
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// 首页/作业选择“中央卡片区”的左边缘:主区左内边距 24 + 左列 300 + 间距 24
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const int kCardLeft = 300;
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// LedIndicator 的文字起点(圆点区宽度):radius(16)×2 + 左侧留白 18,见 LedIndicator::textLeft()
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const int kCommTextLeft = 50;
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// 顶栏左右区宽度。左区要容下最长的一条异常“气体检测仪通信异常”
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// (9 个全角字 × 43px = 387):274(左侧留白) + 50 + 387 + 10 = 721;
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// 上限 726——居中标题的左边缘在 750,再宽就压上去了。
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const int kSideW = 726;
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} // namespace
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TitleBar::TitleBar(AppContext* ctx, QWidget* parent)
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: QWidget(parent), m_ctx(ctx)
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{
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setObjectName("TitleBar");
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setFixedHeight(98);
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setStyleSheet(QString("QWidget#TitleBar{background-color:%1;border-bottom:1px solid %2;}")
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.arg(C::PANEL, C::BORDER));
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// 左侧区(车载端通信状态,固定一行,不轮播)
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QWidget* leftBox = new QWidget(this);
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QHBoxLayout* leftLay = new QHBoxLayout(leftBox);
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leftLay->setSpacing(0); // 只有指示器 + 弹簧,留间距只会白白吃掉文字宽度
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m_comm = new LedIndicator("系统通信正常", leftBox);
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// 高度沿用 LedIndicator 默认的 52:43px 字与 48px 直径的圆点外发光刚好容得下
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m_comm->setTextPixelSize(45); // 与右侧“遥控器正常”同字号
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m_comm->setBlinkText(true); // 异常时文字跟着圆点一起闪
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m_comm->setState(LedIndicator::Green);
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leftLay->setContentsMargins(kCardLeft - 24 - kCommTextLeft, 0, 0, 0);
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leftLay->addWidget(m_comm, 0, Qt::AlignLeft | Qt::AlignVCenter);
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leftLay->addStretch(1);
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// 右侧区(遥控器状态:链路 + 电量)
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QWidget* rightBox = new QWidget(this);
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QHBoxLayout* rightLay = new QHBoxLayout(rightBox);
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rightLay->setContentsMargins(0, 0, 20, 0);
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rightLay->setSpacing(30);
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rightLay->addStretch(1);
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m_rc = new LedIndicator("遥控器断开", rightBox);
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m_rc->setFixedHeight(80);
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m_rc->setTextPixelSize(45);
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m_rc->setState(LedIndicator::RedBlink);
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rightLay->addWidget(m_rc);
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m_rcBat = new QLabel(rightBox);
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m_rcBat->setAlignment(Qt::AlignCenter);
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rightLay->addWidget(m_rcBat);
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setRcBattery(-1);
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// 左右两侧区等宽(宽度见 kSideW:左区要放得下最长的一条异常)
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leftBox->setFixedWidth(kSideW);
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rightBox->setFixedWidth(kSideW);
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// 标题(居中)
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m_title = new QLabel("", this);
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m_title->setAlignment(Qt::AlignCenter);
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m_title->setStyleSheet(QString("color:%1;font-size:60px;font-weight:700;").arg(C::TEXT));
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// 用 QGridLayout 让标题横跨整条顶栏居中,而不是夹在左右两区之间拉伸:
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// 后者下标题的可用宽度 = 1920 - 24×2 - 两侧区宽×2,左区为了放下通信文字一加宽,
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// 标题就被挤窄甚至裁字;横跨三列后标题始终居中于屏幕,两侧区多宽都不影响它。
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QGridLayout* lay = new QGridLayout(this);
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lay->setContentsMargins(24, 6, 24, 6);
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lay->setSpacing(0);
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lay->addWidget(leftBox, 0, 0, Qt::AlignLeft | Qt::AlignVCenter);
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lay->addWidget(rightBox, 0, 2, Qt::AlignRight | Qt::AlignVCenter);
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lay->addWidget(m_title, 0, 0, 1, 3, Qt::AlignCenter);
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// 车载端通信状态:只在文案变化时由通信层通知,这里不做任何轮播。
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connect(m_ctx->comm(), &CarCommunication::commTextChanged,
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this, &TitleBar::onCommTextChanged);
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// 每个页面各有自己的顶条实例,构造时通信层可能早就报过状态了;而 commTextChanged
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// 只在内容变化时才发,所以这里必须先取一次当前值,否则新页面的顶条会一直停在构造时的初值。
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updateComm();
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// 遥控器链路与电量刷新
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connect(m_ctx->rc(), &RcCommunication::linkChanged, this, &TitleBar::onRcLink);
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connect(m_ctx->rc(), &RcCommunication::frameReceived, this, &TitleBar::onRcFrame);
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onRcLink(m_ctx->rc()->linkOk());
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}
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void TitleBar::onCommTextChanged()
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{
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updateComm();
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}
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// 左区固定显示通信状态:链路断或带 All_Comm_FaultCode 就红色闪烁,其余绿灯。
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// 文案由通信层渲染(Telemetry::commText),这里只决定配色。
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void TitleBar::updateComm()
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{
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const Telemetry& t = m_ctx->telemetry;
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const bool warn = !t.commOk || t.commCode != 0;
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m_comm->setText(t.commText);
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m_comm->setState(warn ? LedIndicator::RedBlink : LedIndicator::Green);
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m_comm->setTextColor(QColor(warn ? C::DANGER : C::TEXT)); // 只有异常才用红色警示
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}
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void TitleBar::setTitle(const QString& title)
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{
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m_title->setText(title);
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}
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void TitleBar::onRcLink(bool ok)
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{
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if (ok) {
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m_rc->setText("遥控器正常");
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m_rc->setState(LedIndicator::Green);
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} else {
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m_rc->setText("遥控器断开");
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m_rc->setState(LedIndicator::RedBlink);
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setRcBattery(-1);
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}
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}
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void TitleBar::setRcBattery(int battery)
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{
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// battery < 0 表示链路断开,无电量可显示
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const bool valid = battery >= 0;
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const QString color = !valid ? C::TEXT_SUB
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: (battery <= 20 ? C::DANGER : C::SUCCESS);
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m_rcBat->setText(valid ? QString("%1%").arg(battery) : QString("--%"));
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m_rcBat->setStyleSheet(QString("color:%1;font-size:50px;").arg(color));
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}
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void TitleBar::onRcFrame(const RcFrame& f)
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{
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setRcBattery(f.battery);
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}
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