qt第二天: MainWindow

DialogTest/.gitignore

@@ -0,0 +1,73 @@
+# This file is used to ignore files which are generated
+# ----------------------------------------------------------------------------
+
+*~
+*.autosave
+*.a
+*.core
+*.moc
+*.o
+*.obj
+*.orig
+*.rej
+*.so
+*.so.*
+*_pch.h.cpp
+*_resource.rc
+*.qm
+.#*
+*.*#
+core
+!core/
+tags
+.DS_Store
+.directory
+*.debug
+Makefile*
+*.prl
+*.app
+moc_*.cpp
+ui_*.h
+qrc_*.cpp
+Thumbs.db
+*.res
+*.rc
+/.qmake.cache
+/.qmake.stash
+
+# qtcreator generated files
+*.pro.user*
+
+# xemacs temporary files
+*.flc
+
+# Vim temporary files
+.*.swp
+
+# Visual Studio generated files
+*.ib_pdb_index
+*.idb
+*.ilk
+*.pdb
+*.sln
+*.suo
+*.vcproj
+*vcproj.*.*.user
+*.ncb
+*.sdf
+*.opensdf
+*.vcxproj
+*vcxproj.*
+
+# MinGW generated files
+*.Debug
+*.Release
+
+# Python byte code
+*.pyc
+
+# Binaries
+# --------
+*.dll
+*.exe
+

DialogTest/DialogTest.pro

@@ -0,0 +1,28 @@
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+CONFIG += c++11
+
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+SOURCES += \
+    main.cpp \
+    widget.cpp
+
+HEADERS += \
+    widget.h
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target

DialogTest/main.cpp

@@ -0,0 +1,11 @@
+#include "widget.h"
+
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    Widget w;
+    w.show();
+    return a.exec();
+}

DialogTest/widget.cpp

@@ -0,0 +1,11 @@
+#include "widget.h"
+
+Widget::Widget(QWidget *parent)
+    : QWidget(parent)
+{
+}
+
+Widget::~Widget()
+{
+}
+

DialogTest/widget.h

@@ -0,0 +1,14 @@
+#ifndef WIDGET_H
+#define WIDGET_H
+
+#include <QWidget>
+
+class Widget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    Widget(QWidget *parent = nullptr);
+    ~Widget();
+};
+#endif // WIDGET_H

qtdemo02/main.cpp

@@ -0,0 +1,11 @@
+#include "mainwindow.h"
+
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.show();
+    return a.exec();
+}

qtdemo02/mainwindow.cpp

@@ -0,0 +1,111 @@
+#include "mainwindow.h"
+#include <cstdio>
+
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+{
+    // 设置窗口的标题
+    setWindowTitle("正在学习QMainWindow");
+    resize(1200,960);
+
+    // 创建菜单栏（QMenuBar，QMenu，QAction）
+    QMenuBar *menu_bar = menuBar();
+    this->setMenuBar(menu_bar); // 设置当前窗口的菜单栏
+
+    // 创建图片空间
+    QPixmap pix_map;
+    pix_map.load(":icon/start");
+
+    // 创建菜单
+    QMenu *menu1 = new QMenu("文件",this);
+    // 创建菜单项
+    QAction *openAction =   menu1->addAction("打开...");
+    QMenu *sub_menu = new QMenu("最近使用",this); // 子菜单
+    sub_menu->addAction("d:\\a.txt");
+    // 添加子菜单（菜单项也可以是一个菜单，即为子菜单）
+    menu1->addMenu(sub_menu);
+    QAction *newAction = menu1->addAction("新建...");
+    menu1->addSeparator();
+    newAction->setIcon(QIcon(pix_map));
+    QAction *exitAction = menu1->addAction("退出");
+    menu_bar->addMenu(menu1);
+    exitAction->setIcon(QIcon(":icon/stop"));
+
+
+    QMenu *menu2 = new QMenu("编辑",this);
+    QAction *editAction = menu2->addAction("复制");
+    menu2->addAction("剪切");
+    menu2->addAction("粘贴");
+
+    menu_bar->addMenu(menu2);
+
+    // 菜单项的快捷方式
+    openAction->setShortcut(QKeySequence(Qt::CTRL+Qt::Key_O));
+    newAction->setShortcut(QKeySequence(tr("ctrl+n")));
+    exitAction->setShortcut(QKeySequence(tr("ctrl+q")));
+
+    // 初始化子控件
+    mEdit = new QTextEdit(this);
+    mEdit->hide();
+    mWidget1 = new Widget1;
+
+    connect(openAction,&QAction::triggered,[=](){
+        takeCentralWidget(); // 将当前中心空间从主窗口移除
+        qDebug()<<"正在打开文件...";
+        setCentralWidget(mEdit);
+        mEdit->show();
+
+    });
+    connect(newAction,&QAction::triggered,[=](){
+        takeCentralWidget();
+        qDebug()<<"正在新建文件...";
+        setCentralWidget(mWidget1);
+
+    });
+    connect(exitAction,&QAction::triggered,this,&QMainWindow::close);
+
+    // 工具栏
+    QToolBar *tool_bar = new QToolBar;
+    tool_bar->setParent(this);
+    tool_bar->addAction(openAction);
+    tool_bar->addAction(newAction);
+    tool_bar->addSeparator();
+    tool_bar->addAction(exitAction);
+    tool_bar->setMovable(false); // 禁止拖动
+    tool_bar->setFloatable(false); // 禁止浮动
+    tool_bar->setAllowedAreas(Qt::LeftToolBarArea|Qt::RightToolBarArea);
+    this->addToolBar(tool_bar);
+    //    this->addToolBar(Qt::LeftToolBarArea,tool_bar);
+
+
+    // 创建状态栏
+    QStatusBar *status_bar = new QStatusBar(this);
+    setStatusBar(status_bar);
+    QLabel *label1 = new QLabel("状态: 1",this);
+    status_bar->addWidget(label1); // 从左向右添加
+    QLabel *label2 = new QLabel("状态: 2",this);
+    //    label2->setFixedSize(200,40);
+    //    label2->setStyleSheet("background-color: #cf0f13; padding-left: 100px;");
+    status_bar-> addPermanentWidget(label2); // 从右向左添加
+    status_bar->addWidget(new QLabel("状态 3: 0",this),1); // 1 是平铺剩余空间
+
+
+    // 创建铆接控件
+    QDockWidget *dock = new QDockWidget("铆接1",this);
+    dock->addAction(openAction);
+    dock->addAction(exitAction);
+    dock->setWidget(new Widget1(this));
+    QDockWidget *dock2 = new QDockWidget("铆接2",this);
+    dock2->setWidget(new QPushButton("点我试试",this));
+    addDockWidget(Qt::TopDockWidgetArea,dock);
+    addDockWidget(Qt::TopDockWidgetArea,dock2);
+
+
+    // 中心部件
+
+}
+
+MainWindow::~MainWindow()
+{
+}
+

qtdemo02/mainwindow.h

@@ -0,0 +1,28 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QMenuBar> // 菜单栏
+#include <QMenu> // 菜单
+#include <QAction> // 菜单项
+#include <QDebug>
+#include <QToolBar> // 工具栏
+#include <QStatusBar> // 状态栏
+#include <QLabel> // 标签
+#include <QDockWidget> // 铆接控件
+#include <QPushButton>
+#include "widget1.h"
+#include <QTextEdit>
+#include <QPixmap> // 图片
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+    QTextEdit *mEdit;
+    Widget1 *mWidget1;
+
+public:
+    MainWindow(QWidget *parent = nullptr);
+    ~MainWindow();
+};
+#endif // MAINWINDOW_H

qtdemo02/qtdemo02.pro

@@ -0,0 +1,34 @@
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+CONFIG += c++11
+
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+SOURCES += \
+    main.cpp \
+    mainwindow.cpp \
+    widget1.cpp
+
+HEADERS += \
+    mainwindow.h \
+    widget1.h
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target
+
+RESOURCES += \
+    res.qrc
+

qtdemo02/res.qrc

@@ -0,0 +1,8 @@
+<RCC>
+    <qresource prefix="/icon">
+        <file alias="open">images/open.png</file>
+        <file alias="save">images/save.png</file>
+        <file alias="start">images/Start.png</file>
+        <file alias="stop">images/stop.png</file>
+    </qresource>
+</RCC>

qtdemo02/widget1.cpp

@@ -0,0 +1,26 @@
+#include "widget1.h"
+
+Widget1::Widget1(QWidget *parent) : QWidget(parent)
+{
+    btn = new QPushButton("Ok",this);
+       close_btn = new QPushButton("退出",this);
+    label = new QLabel("结果: ",this);
+
+    btn->resize(100,50);
+    btn->move(10,10);
+
+    close_btn->resize(100,50);
+    close_btn->move(120,10);
+
+    label->resize(200,50);
+    label->move(10,70);
+
+    connect(btn,&QPushButton::pressed,[&](){
+        label->setText("结果: 1+1 = 2");
+    });
+
+    connect(close_btn,&QPushButton::pressed,[&](){
+        this->close();
+    });
+
+}

qtdemo02/widget1.h

@@ -0,0 +1,22 @@
+#ifndef WIDGET1_H
+#define WIDGET1_H
+
+#include <QWidget>
+#include <QPushButton>
+#include <QLabel>
+
+class Widget1 : public QWidget
+{
+    Q_OBJECT
+    QPushButton *btn; // 私有
+    QLabel *label;
+    QPushButton *close_btn;
+
+public:
+    explicit Widget1(QWidget *parent = nullptr);
+
+signals:
+
+};
+
+#endif // WIDGET1_H