多层停车场'

DataStructureProject.pro

@@ -27,24 +27,23 @@ DEFINES += QT_DEPRECATED_WARNINGS
 SOURCES += \
         main.cpp \
         mainwindow.cpp \
-        monitor.cpp \
         cars.cpp \
-        parkinglot.cpp \
         ParkingLotWidget.cpp \
         Road.cpp \
-        ParkingSpaceWidget.cpp
+        ParkingSpaceWidget.cpp \
+    monitor.cpp
 
 HEADERS += \
         mainwindow.h \
-        monitor.h \
         cars.h \
-        parkinglot.h \
         ParkingLotWidget.h \
         Road.h \
-        ParkingSpaceWidget.h
+        ParkingSpaceWidget.h \
+    monitor.h
 
 FORMS += \
-        mainwindow.ui
+        mainwindow.ui \
+    monitor.ui
 
 RESOURCES += \
     cars.qrc \

ParkingLotWidget.cpp

@@ -10,7 +10,6 @@
 
 ParkingLotWidget::ParkingLotWidget(QWidget *parent, const QString& xml) : QWidget(parent)
 {
-	resize(1000, 1000);
 	parse_xml(xml);
 	setLayout(layout);
 }
@@ -37,6 +36,7 @@ void ParkingLotWidget::parse_xml(const QString & xml)
 	if (!file.open(QFile::ReadOnly | QFile::Text)) {
 		QMessageBox::critical(this, QObject::tr("Error"),
 			QObject::tr("Cannot read file %1").arg(xml));
+        return;
 	}
 
 	QString errorStr;
@@ -47,15 +47,23 @@ void ParkingLotWidget::parse_xml(const QString & xml)
 		QMessageBox::critical(this, QObject::tr("Error"),
 			QObject::tr("Parse error at line %1, column %2: %3")
 			.arg(errorLine).arg(errorColumn).arg(errorStr));
+        return;
 	}
-	QDomElement element = doc.documentElement().firstChild().toElement();
-	QString name = element.tagName();
-	if (element.tagName().contains("Layout"))
+    QDomElement element = doc.documentElement();
+    if (element.tagName() != "parkinglot") {
+        qDebug() << this -> objectName() << "布局文件错误: 根标签不是parkinglot";
+        return;
+    }
+    this->name = element.attribute("name");
+    QDomElement childElement = element.firstChildElement();
+    QString name = childElement.tagName();
+    if (childElement.tagName().contains("Layout"))
 	{
-		layout = parseLayout(element);
+        layout = parseLayout(childElement);
 	} else
 	{
-		qDebug() << this -> objectName() << "布局文件错误";
+        qDebug() << this -> objectName() << "布局文件错误: 没有布局标签";
+        return;
 	}
 }
 
@@ -96,3 +104,8 @@ QBoxLayout * ParkingLotWidget::parseLayout(const QDomElement & element)
 	layout->setSpacing(0);
 	return layout;
 }
+
+QString ParkingLotWidget::getName() const
+{
+    return name;
+}

ParkingLotWidget.h

@@ -13,14 +13,18 @@ class ParkingLotWidget: public QWidget
 	Q_OBJECT
 public:
 	explicit ParkingLotWidget(QWidget* parent, const QString& xml);
-	void paintEvent(QPaintEvent* event) override;
     int addSpace(ParkingSpaceWidget* sp);
 	~ParkingLotWidget();
+    QString getName() const;
+
+protected:
+    void paintEvent(QPaintEvent* event) override;
 private:
     std::vector<ParkingSpaceWidget*> m_spaceList;
     void parse_xml(const QString& xml);
 	QBoxLayout *parseLayout(const QDomElement& element);
 	QBoxLayout *layout = nullptr;
+    QString name;
 };
 
 #endif

ParkingSpaceWidget.h

@@ -13,8 +13,9 @@ public:
 	enum direction{N, S, E, W};
     ParkingSpaceWidget(ParkingLotWidget* parent, const QString &dir);
     static QBoxLayout*  makeParkingSapceGroup(ParkingLotWidget* parent, const QString& dir, int n, const QString &expend);
-    void paintEvent(QPaintEvent* event) override;
 	~ParkingSpaceWidget();
+protected:
+    void paintEvent(QPaintEvent* event) override;
 private:
     int number;
 	direction dir;

Road.cpp

@@ -1,5 +1,6 @@
 #include "Road.h"
 #include <QPainter>
+#include <QPaintEvent>
 
 Road::Road(QWidget* parent, const int length, const direction dir)
 		:QWidget(parent), length(length), dir(dir)
@@ -22,6 +23,7 @@ Road::Road(QWidget* parent, const int length, const direction dir)
 
 void Road::paintEvent(QPaintEvent * event)
 {
+    event->ignore();
 	QPainter painter(this);
 	/*painter.setPen(Qt::blue);
 	painter.drawRect(0, 0, width() - 1, height() - 1);*/

main.cpp

@@ -1,9 +1,13 @@
 #include "mainwindow.h"
 #include <QApplication>
+#include <QString>
+#include <QCoreApplication>
+#include <QDebug>
 
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
+    qDebug() << QCoreApplication::applicationDirPath();
     MainWindow w;
     w.show();
 

mainwindow.cpp

@@ -4,29 +4,14 @@
 #include <QDialog>
 #include <QLabel>
 #include <QScrollArea>
-#include "parkinglot.h"
 #include "ParkingLotWidget.h"
+#include "monitor.h"
 
 MainWindow::MainWindow(QWidget *parent) :
-    QMainWindow(parent),
-    ui(new Ui::MainWindow)
+    QMainWindow(parent)
 {
-    resize(1800, 800);
-    // ui->setupUi(this);
-    QScrollArea* scrollArea = new QScrollArea(this);
-    scrollArea->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding));
-    scrollArea->setWidgetResizable(true);
-    // scrollArea->resize(1800, 800);
-    // monitor = new Monitor(this);
-    // Cars *car = new Cars(this);
-    ParkingLotWidget *pk = new ParkingLotWidget(this, "parkinglot_f1.xml");
-	// pk->show();
-    // pk->creatMap();
-    /*QLabel *label = new QLabel(this);
-    label->resize(1000, 1000);
-    label->setPixmap(pk->creatMap2());*/
-	scrollArea->resize(pk->width(), this->height());
-    scrollArea->setWidget(pk);
+    Monitor *monitor = new Monitor(this);
+    resize(monitor->size());
 }
 
 MainWindow::~MainWindow()

monitor.cpp

@@ -1,17 +1,56 @@
 #include "monitor.h"
-#include <QPainter>
+#include "ui_monitor.h"
+#include <QObject>
+#include <QDebug>
 
-Monitor::Monitor(QWidget *parent) : QWidget(parent)
+Monitor::Monitor(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::Monitor)
 {
-    resize(800, 600);
+    ui->setupUi(this);
+    QObject::connect(ui->downStairButton, QPushButton::clicked, [&]() {
+        qDebug() << "下一层按钮";
+        if (m_currentFloor > 0) {
+            m_currentFloor -= 1;
+            showParkinglot();
+        }
+        if (m_currentFloor == 0)
+            ui->downStairButton->setEnabled(false);
+        if (m_currentFloor == m_parkinglots.size() - 2)
+            ui->upStairButton->setEnabled(true);
+    });
+    QObject::connect(ui->upStairButton, QPushButton::clicked, [&]() {
+        qDebug() << "上一层按钮";
+        if (m_currentFloor < m_parkinglots.size() - 1) {
+            m_currentFloor += 1;
+            showParkinglot();
+        }
+        if (m_currentFloor == m_parkinglots.size() - 1)
+            ui->upStairButton->setEnabled(false);
+        if (m_currentFloor == 1)
+            ui->downStairButton->setEnabled(true);
+    });
+    if (m_currentFloor == 0)  // 如果默认楼层就是顶层或者最下一层，把相应的按钮disable
+        ui->downStairButton->setEnabled(false);
+    else if (m_currentFloor == m_parkinglots.size() - 1)
+        ui->upStairButton->setEnabled(false);
+    showParkinglot();
 }
 
-void Monitor::paintEvent(QPaintEvent *) {
-    QPainter painter(this);
-    painter.drawLine(80, 100, 650, 500);
-    painter.setPen(Qt::red);
-    painter.drawRect(10, 10, 100, 400);
-    painter.setPen(QPen(Qt::green, 5));
-    painter.setBrush(Qt::blue);
-    painter.drawEllipse(50, 150, 400, 200);
+Monitor::~Monitor()
+{
+    delete ui;
+}
+
+void Monitor::showParkinglot()
+{
+    if (m_parkinglots.at(m_currentFloor) == nullptr)
+        m_parkinglots[m_currentFloor] = new ParkingLotWidget(this, m_xmlPath.at(m_currentFloor));
+    ui->currentFloor->setText("<center>" + m_parkinglots.at(m_currentFloor)->getName() + "</center>");
+    for (auto p = m_parkinglots.begin(); p != m_parkinglots.end(); p++)
+        if (*p != nullptr)
+            (*p)->hide();
+    m_parkinglots.at(m_currentFloor)->show();
+    //ui->rootLayout->replaceWidget(ui->parkingLotView, m_parkinglots.at(m_currentFloor));
+    //ui->parkingLotView = m_parkinglots.at(m_currentFloor);
 }

monitor.h

@@ -2,19 +2,30 @@
 #define MONITOR_H
 
 #include <QWidget>
+#include <vector>
+#include <QString>
+#include "ParkingLotWidget.h"
+
+namespace Ui {
+    class Monitor;
+}
 
 class Monitor : public QWidget
 {
     Q_OBJECT
+
 public:
-    explicit Monitor(QWidget *parent = nullptr);
+    explicit Monitor(QWidget *parent = 0);
+    ~Monitor();
 
-protected:
-    void paintEvent(QPaintEvent *);
+private:
+    Ui::Monitor *ui;
+    // TODO: 动态修改
+    std::vector<ParkingLotWidget*> m_parkinglots = {nullptr, nullptr};  // lazy
+    std::vector<QString> m_xmlPath = {"parkinglot_b1.xml", "parkinglot_f1.xml"};
+    uint m_currentFloor = 1;  // 默认为地上一层
 
-signals:
-
-public slots:
+    void showParkinglot(void);
 };
 
 #endif // MONITOR_H

monitor.ui

@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Monitor</class>
+ <widget class="QWidget" name="Monitor">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1080</width>
+    <height>800</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <widget class="QWidget" name="horizontalLayoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>220</x>
+     <y>60</y>
+     <width>811</width>
+     <height>581</height>
+    </rect>
+   </property>
+   <layout class="QHBoxLayout" name="rootLayout">
+    <property name="sizeConstraint">
+     <enum>QLayout::SetDefaultConstraint</enum>
+    </property>
+    <item>
+     <widget class="QWidget" name="parkingLotView" native="true">
+      <property name="maximumSize">
+       <size>
+        <width>1000</width>
+        <height>800</height>
+       </size>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <spacer name="horizontalSpacer">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="sizeHint" stdset="0">
+       <size>
+        <width>40</width>
+        <height>20</height>
+       </size>
+      </property>
+     </spacer>
+    </item>
+    <item>
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <property name="sizeConstraint">
+       <enum>QLayout::SetDefaultConstraint</enum>
+      </property>
+      <item>
+       <widget class="QLabel" name="currentFloor">
+        <property name="text">
+         <string>TextLabel</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_2">
+        <item>
+         <widget class="QPushButton" name="upStairButton">
+          <property name="text">
+           <string>上一层</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="downStairButton">
+          <property name="text">
+           <string>下一层</string>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <spacer name="verticalSpacer">
+        <property name="orientation">
+         <enum>Qt::Vertical</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>20</width>
+          <height>40</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+     </layout>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

parkinglot.cpp

@@ -1,186 +0,0 @@
-#include "parkinglot.h"
-#include <QDomDocument>
-#include <QFile>
-#include <QMessageBox>
-#include <QPainter>
-#include <QWidget>
-#include <QDebug>
-#include <algorithm>
-
-ParkingLot::ParkingLot(const QString &fname, QWidget* parent)
-{
-    map = new QPixmap(1000, 1000);
-    this->parent = parent;
-    QFile file(fname);
-    if (!file.open(QFile::ReadOnly | QFile::Text)) {
-        QMessageBox::critical(parent, QObject::tr("Error"),
-                             QObject::tr("Cannot read file %1").arg(fname));
-    }
-
-    QString errorStr;
-    int errorLine;
-    int errorColumn;
-    doc = new QDomDocument;
-    if (!doc -> setContent(&file, false, &errorStr, &errorLine, &errorColumn)) {
-    QMessageBox::critical(parent, QObject::tr("Error"),
-                          QObject::tr("Parse error at line %1, column %2: %3")
-                          .arg(errorLine).arg(errorColumn).arg(errorStr));
-    }
-}
-
-QPixmap ParkingLot::creatMap2() const
-{
-    QDomElement root =doc -> documentElement();
-    if (root.tagName() != "parkinglot") {
-        QMessageBox::critical(parent, QObject::tr("Error"),
-                              QObject::tr("Not a parkinglot file"));
-    }
-    return parseLayout(root.firstChild().toElement());
-}
-
-QPixmap *ParkingLot::getPixmap() const
-{
-    return map;
-}
-
-ParkingLot::~ParkingLot()
-{
-    // delete painter;
-    delete doc;
-    delete map;
-}
-
-QPixmap drawRoad(const QDomElement& roadXML) {
-    QPixmap result(800, 600);
-    if (roadXML.tagName() != "road") {
-        qDebug() << "XML is not a road";
-        return result.copy(0, 0, 0, 0);
-    }
-	result.fill(QColor(200, 200, 200));
-    int x = 0, y = 0;
-    QPainter painter(&result);
-    painter.setBrush(Qt::white);
-    painter.setPen(Qt::white);
-    enum {vertical, horizontal} direction;
-    const int length = roadXML.attribute("length").toInt();
-    qDebug() << "length:" << length;
-    if (roadXML.attribute("direction") == "horizontal")
-        direction = horizontal;
-    else
-        direction = vertical;
-    if (direction == horizontal) {
-        while (x < length) {
-            painter.drawRect(x + 5, 20, 40, 10);
-            x += 50;
-        }
-    } else {
-        while (y < length) {
-            painter.drawRect(20, y + 5, 10, 40);
-            y += 50;
-        }
-    }
-    if (direction == horizontal)
-        return result.copy(0, 0, length, 50);
-    else
-        return result.copy(0, 0, 50, length);
-}
-
-QPixmap drawRoom(const QDomElement& roomXML) {
-    QPixmap result(800, 600);
-    if (roomXML.tagName() != "room") {
-        qDebug() << "XML节点不是车位";
-        return result.copy(0, 0, 0, 0);
-    }
-    QPixmap temp(60, 40);
-	result.fill(QColor(200, 200, 200));
-    QPainter painter(&result), t_painter(&temp);
-    painter.setPen(Qt::white);
-    painter.setBrush(Qt::white);
-    t_painter.setPen(Qt::white);
-    t_painter.setBrush(Qt::white);
-
-	const auto direction = roomXML.attribute("direction").at(0).unicode();
-	const auto n = roomXML.attribute("number").toInt();
-	auto x = 0, y = 0;
-    enum {down, right} expendDirection;
-    if (roomXML.attribute("expendDirection") == "down")
-        expendDirection = down;
-    else
-        expendDirection = right;
-    t_painter.drawRect(0, 0, 60, 5);
-    t_painter.drawRect(0, 5, 10, 35);
-    t_painter.drawRect(10, 35, 50, 5);
-    t_painter.end();
-    switch(direction) {
-    case 'E':
-        // temp = temp;
-        break;
-    case 'S':
-        temp = temp.transformed(QMatrix().rotate(270));
-        break;
-    case 'W':
-        temp = temp.transformed(QMatrix().rotate(180));
-        break;
-    case 'N':
-        temp = temp.transformed(QMatrix().rotate(90));
-        break;
-    default:
-        qDebug() << "未知方向" << direction;
-        break;
-    }
-    // tPainter.begin(&temp);
-    for (auto i = 0; i < n; i++) {
-        painter.drawPixmap(x, y, temp.width(), temp.height(), temp);
-        if (expendDirection == down)
-            y += temp.height();
-        else
-            x += temp.width();
-    }
-    if (expendDirection == down)
-        return result.copy(0, 0, temp.width(), y);
-    else
-        return result.copy(0, 0, temp.height(), x);
-}
-
-QPixmap ParkingLot::parseLayout(const QDomElement& layout) const
-{
-    QPixmap result(2000, 2000), temp;
-	result.fill(QColor(200, 200, 200));
-    QPainter painter(&result);
-    painter.setPen(Qt::black);
-	auto x = 0, y = 0, max_x = 0, max_y = 0;
-    enum {vertical, horizontal} direction;
-    if (layout.tagName() == "vLayout")
-        direction = vertical;
-    else if (layout.tagName() == "hLayout")
-        direction = horizontal;
-    else {
-        qDebug() << "错误的布局名称" << layout.tagName();
-        return result;
-    }
-
-    QDomElement child = layout.firstChild().toElement();
-    while(!child.isNull()) {
-	    const QString name = child.tagName();
-        if (name == "road") {
-            temp = drawRoad(child);
-        } else if (name == "room") {
-            temp = drawRoom(child);
-        } else if (name == "vLayout" || name == "hLayout")
-            temp = parseLayout(child);
-        painter.drawPixmap(x, y, temp.width(), temp.height(), temp);
-        if (direction == horizontal) {
-            x += temp.width();
-            max_y = std::max(max_y, temp.height());
-        } else {
-            y += temp.height();
-            max_x = std::max(max_x, temp.width());
-        }
-        child = child.nextSibling().toElement();
-    }
-    if (direction == horizontal) {
-        return result.copy(0, 0, x, max_y);
-    } else {
-        return result.copy(0, 0, max_x, y);
-    }
-}

parkinglot.h

@@ -1,22 +0,0 @@
-#ifndef PARKINGLOT_H
-#define PARKINGLOT_H
-#include <QWidget>
-#include <QPainter>
-#include <QDomDocument>
-class ParkingLot
-{
-public:
-    explicit ParkingLot(const QString& fname, QWidget *parent = nullptr);
-    void creatMap();
-    QPixmap creatMap2() const;
-    QPixmap* getPixmap() const;
-    ~ParkingLot();
-private:
-    // bool vertical;
-    QPixmap* map;
-    QDomDocument* doc;
-    QWidget* parent;
-    QPixmap parseLayout(const QDomElement& layout) const;
-};
-
-#endif // PARKINGLOT_H

parkinglot_b1.xml

@@ -0,0 +1,14 @@
+<parkinglot roadWidth="50px" name="地下一层">
+	<vLayout>
+		<road length="700" direction="horizontal" />
+		<hLayout>
+			<road length="600" direction="vertical" />
+			<room number="15" direction="W" expendDirection="down"/>
+			<room number="15" direction="E" expendDirection="down"/>
+			<road length="600" direction="vertical" />
+			<room number="15" direction="W" expendDirection="down"/>
+			<room number="15" direction="E" expendDirection="down"/>
+		</hLayout>
+		<road length="700" direction="horizontal" />
+	</vLayout>
+</parkinglot>

parkinglot_f1.xml

@@ -1,4 +1,4 @@
-<parkinglot roadWidth="50px">
+<parkinglot roadWidth="50px" name="一层">
 	<vLayout>
 		<road length="700" direction="horizontal" />
 		<hLayout>