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  • 30.QT IDE编写

    • mainwindow.h
        1 #ifndef MAINWINDOW_H
        2 #define MAINWINDOW_H
        3 
        4 #include <QMainWindow>
        5 #include <QTextEdit>
        6 #include <QMenu>
        7 #include <QMenuBar>
        8 #include <QAction>
        9 #include <QFileDialog>
       10 #include <QMessageBox>
       11 #include <iostream>
       12 #include <fstream>
       13 #include <cstdlib>
       14 
       15 #include <QImage>
       16 #include <QLabel>
       17 #include <QMenu>
       18 #include <QMenuBar>
       19 #include <QComboBox>
       20 #include <QSpinBox>
       21 #include <QToolBar>
       22 #include <QFontComboBox>
       23 #include <QToolButton>
       24 #include <QTextCharFormat>
       25 using namespace std;
       26 
       27 namespace Ui {
       28 class MainWindow;
       29 }
       30 
       31 class MainWindow : public QMainWindow
       32 {
       33     Q_OBJECT
       34 
       35 public:
       36     explicit MainWindow(QWidget *parent = 0);
       37     ~MainWindow();
       38     void createActions();
       39     void createMenus();
       40     void createToolBars();
       41 
       42 private:
       43     Ui::MainWindow *ui;
       44     QString filename;
       45     //文本编辑
       46     QTextEdit *text;
       47     //菜单
       48     QMenu *file;
       49         //菜单选项
       50         QAction *Afile_open;
       51         QAction *Afile_close;
       52         QAction *Afile_save;
       53         QAction *Afile_exit;
       54 
       55     QMenu *edit;
       56         QAction *Afile_selall;
       57         QAction *Afile_cut;
       58         QAction *Afile_copy;
       59         QAction *Afile_paste;
       60 
       61     QMenu *build;
       62         QAction *Abuild_it;
       63         QAction *Abuild_andrun;
       64 
       65     QMenu *about;
       66         QAction *Aabout_it;
       67 
       68 private:
       69         QMenu *fileMenu;                                   //各项菜单栏
       70             QMenu *zoomMenu;
       71             QMenu *rotateMenu;
       72             QMenu *mirrorMenu;
       73 
       74             QImage img;
       75             QString fileName;
       76             //编辑显示窗口
       77            // ShowWidget *showWidget;
       78 
       79             QAction *openFileAction;                         //文件菜单项
       80             QAction *NewFileAction;
       81             QAction *PrintTextAction;
       82             QAction *PrintImageAction;
       83             QAction *exitAction;
       84 
       85             QAction *copyAction;                              //编辑菜单项
       86             QAction *cutAction;
       87             QAction *pasteAction;
       88             QAction *aboutAction;
       89             QAction *zoomInAction;
       90             QAction *zoomOutAction;
       91 
       92             QAction *rotate90Action;                         //旋转菜单项
       93             QAction *rotate180Action;
       94             QAction *rotate270Action;
       95 
       96             QAction *mirrorVerticalAction;                  //镜像菜单项
       97             QAction *mirrorHorizontalAction;
       98 
       99             QAction *undoAction;
      100             QAction *redoAction;
      101 
      102             QToolBar *fileTool;                              //工具栏
      103             QToolBar *zoomTool;
      104             QToolBar *rotateTool;
      105             QToolBar *mirrorTool;
      106 
      107             QToolBar *doToolBar;
      108 
      109             QLabel *fontLabel1;                             //字体设置项
      110             QFontComboBox *fontComboBox;
      111             QLabel *fontLabel2;
      112             QComboBox *sizeComboBox;
      113             QToolButton *boldBtn;
      114             QToolButton *italicBtn;
      115             QToolButton *underlineBtn;
      116             QToolButton *colorBtn;
      117 
      118             QToolBar *fontToolBar;                          //字体工具栏
      119 
      120             QLabel *listLabel;                              //排序设置项
      121             QComboBox *listComboBox;
      122             QActionGroup *actGrp;
      123             QAction *leftAction;
      124             QAction *rightAction;
      125             QAction *centerAction;
      126             QAction *justifyAction;
      127 
      128             QToolBar *listToolBar;                          //排序工具栏
      129 private slots:
      130     void file_open();
      131     void file_close();
      132     void file_save();
      133     void file_exit();
      134     void file_selall();
      135     void file_cut();
      136     void file_copy();
      137     void file_paste();
      138     void build_it();
      139     void build_andrun();
      140     void about_it();
      141 
      142 };
      143 
      144 #endif // MAINWINDOW_H
    • mainwindow.cpp
        1 #include "mainwindow.h"
        2 #include "ui_mainwindow.h"
        3 
        4 MainWindow::MainWindow(QWidget *parent) :
        5     QMainWindow(parent),
        6     ui(new Ui::MainWindow)
        7 {
        8 
        9     ui->setupUi(this);
       10     //设置文本编辑器
       11     text = new QTextEdit;
       12     QFont font;
       13     font.setPixelSize(30);
       14     text->setFont(font);
       15     QColor qcolor;
       16     qcolor.setRgb(255,255,255);
       17     this->setCentralWidget(text);
       18 
       19     //设置菜单
       20     file = this->menuBar()->addMenu("文件");
       21     edit = this->menuBar()->addMenu("编辑");
       22     build = this->menuBar()->addMenu("构建");
       23     about = this->menuBar()->addMenu("关于");
       24 
       25     //about菜单
       26     {
       27         Aabout_it = new QAction("关于",this);
       28         about->addAction(Aabout_it);
       29         connect(Aabout_it,SIGNAL(triggered(bool)),this,SLOT(about_it()));
       30     }
       31 
       32     //open菜单
       33     {
       34         Afile_open = new QAction("打开文件",this);
       35         file->addAction(Afile_open);
       36         connect(Afile_open,SIGNAL(triggered(bool)),this,SLOT(file_open()));
       37 
       38         Afile_close = new QAction("关闭文件",this);
       39         file->addAction(Afile_close);
       40         connect(Afile_close,SIGNAL(triggered(bool)),this,SLOT(file_close()));
       41 
       42         Afile_save = new QAction("保存文件",this);
       43         file->addAction(Afile_save);
       44         connect( Afile_save,SIGNAL(triggered(bool)),this,SLOT(file_save()));
       45 
       46         Afile_exit = new QAction("退出",this);
       47         file->addAction(Afile_exit);
       48         connect(Afile_exit,SIGNAL(triggered(bool)),this,SLOT(file_exit()));
       49     }
       50 
       51     //编辑菜单
       52     {
       53         Afile_selall = new QAction("全选",this);
       54         edit->addAction(Afile_selall);
       55         connect(Afile_selall,SIGNAL(triggered(bool)),this,SLOT(file_selall()));
       56 
       57         Afile_cut = new QAction("剪切",this);
       58         edit->addAction(Afile_cut);
       59         connect(Afile_cut,SIGNAL(triggered(bool)),this,SLOT(file_cut()));
       60 
       61         Afile_copy = new QAction("复制",this);
       62         edit->addAction(Afile_copy);
       63         connect(Afile_copy,SIGNAL(triggered(bool)),this,SLOT(file_copy()));
       64 
       65         Afile_paste = new QAction("粘贴",this);
       66         edit->addAction(Afile_paste);
       67         connect(Afile_paste,SIGNAL(triggered(bool)),this,SLOT(file_paste()));
       68     }
       69 
       70     {
       71         Abuild_it = new QAction("编译",this);
       72         build->addAction(Abuild_it);
       73         connect(Abuild_it,SIGNAL(triggered(bool)),this,SLOT(build_it()));
       74 
       75         Abuild_andrun = new QAction("编译执行",this);
       76         build->addAction(Abuild_andrun);
       77         connect(Abuild_andrun,SIGNAL(triggered(bool)),this,SLOT(build_andrun()));
       78     }
       79 
       80     this->setWindowTitle("简易编译器");
       81 
       82     //showWidget =new ShowWidget(this);
       83      //   setCentralWidget(showWidget);
       84         //在工具栏上嵌入控件
       85         //设置字体
       86         fontLabel1 =new QLabel(tr("字体:"));
       87         fontComboBox =new QFontComboBox;
       88         fontComboBox->setFontFilters(QFontComboBox::ScalableFonts);
       89 
       90         fontLabel2 =new QLabel(tr("字号:"));
       91         sizeComboBox =new QComboBox;
       92         QFontDatabase db;
       93         foreach(int size,db.standardSizes())
       94             sizeComboBox->addItem(QString::number(size));
       95 
       96         boldBtn =new QToolButton;
       97         boldBtn->setIcon(QIcon("bold.png"));
       98         boldBtn->setCheckable(true);
       99         italicBtn =new QToolButton;
      100         italicBtn->setIcon(QIcon("italic.png"));
      101         italicBtn->setCheckable(true);
      102 
      103         underlineBtn =new QToolButton;
      104         underlineBtn->setIcon(QIcon("underline.png"));
      105         underlineBtn->setCheckable(true);
      106 
      107         colorBtn =new QToolButton;
      108         colorBtn->setIcon(QIcon("color.png"));
      109         colorBtn->setCheckable(true);
      110 
      111         //排序
      112         listLabel =new QLabel(tr("排序"));
      113         listComboBox =new QComboBox;
      114         listComboBox->addItem("Standard");
      115         listComboBox->addItem("QTextListFormat::ListDisc");
      116         listComboBox->addItem("QTextListFormat::ListCircle");
      117         listComboBox->addItem("QTextListFormat::ListSquare");
      118         listComboBox->addItem("QTextListFormat::ListDecimal");
      119         listComboBox->addItem("QTextListFormat::ListLowerAlpha");
      120         listComboBox->addItem("QTextListFormat::ListUpperAlpha");
      121         listComboBox->addItem("QTextListFormat::ListLowerRoman");
      122         listComboBox->addItem("QTextListFormat::ListUpperRoman");
      123 
      124         createActions();
      125         createMenus();
      126         createToolBars();
      127 
      128         if(img.load("image.png"))
      129         {
      130             //showWidget->imageLabel->setPixmap(QPixmap::fromImage(img));
      131         }
      132 
      133 }
      134 
      135 MainWindow::~MainWindow()
      136 {
      137     delete ui;
      138 }
      139 
      140 void MainWindow::file_open()
      141 {
      142     filename =QFileDialog::getOpenFileName(this,"hello","*.*");
      143     if(filename.isEmpty())
      144     {
      145         QMessageBox::information(this,"提示","注意选择一个文件");
      146         return;
      147     }
      148     fstream fin(filename.toStdString().c_str());
      149     if(!fin)
      150     {
      151         QMessageBox::information(this,"提示","打开文件失败");
      152         return;
      153     }
      154 
      155     while(!fin.eof())
      156     {
      157         char buf[2014]={0};
      158         fin.getline(buf,2014);
      159         text->append(buf);
      160     }
      161     fin.close();
      162 }
      163 
      164 void MainWindow::file_close()
      165 {
      166     text->setText("");
      167     filename ="";
      168 }
      169 
      170 void MainWindow::file_save()
      171 {
      172     filename = QFileDialog::getSaveFileName();
      173     if(filename.isEmpty())
      174     {
      175         QMessageBox::information(this,"提示","打开文件失败");
      176         return;
      177     }
      178 
      179     QString info =text->toPlainText().toStdString().c_str();
      180     //写入
      181     ofstream fout(filename.toStdString().c_str());
      182     if(!fout)
      183     {
      184         QMessageBox::information(this,"提示","打开文件失败");
      185         return;
      186     }
      187     fout.write(info.toStdString().c_str(),strlen(info.toStdString().c_str()));
      188     fout.close();
      189 }
      190 
      191 void MainWindow::file_exit()
      192 {
      193     exit(0);
      194 }
      195 
      196 void MainWindow::file_selall()
      197 {
      198     text->selectAll();
      199 }
      200 
      201 void MainWindow::file_cut()
      202 {
      203     text->cut();
      204 }
      205 
      206 void MainWindow::file_copy()
      207 {
      208     text->copy();
      209 }
      210 
      211 void MainWindow::file_paste()
      212 {
      213     text->paste();
      214 }
      215 
      216 void MainWindow::build_it()
      217 {
      218     QString destexename = filename;
      219     bool iscpp = destexename.contains(".cpp");
      220     QString cmd;
      221     if(iscpp)
      222     {
      223         destexename.replace(".cpp",".exe");
      224         cmd = "g++ -o " + destexename+" " +filename;
      225     }
      226     else
      227     {
      228         destexename.replace(".c",".exe");
      229         cmd = "gcc -o "+destexename+" "+filename;
      230     }
      231     system(cmd.toStdString().c_str());
      232 }
      233 
      234 void MainWindow::build_andrun()
      235 {
      236     QString destexename = filename;
      237     bool iscpp = destexename.contains(".cpp");
      238     QString cmd;
      239     if(iscpp)
      240     {
      241         destexename.replace(".cpp",".exe");
      242         cmd = "g++ -o "+filename+" "+destexename;
      243     }
      244     else
      245     {
      246         destexename.replace(".c",".exe");
      247         cmd = "gcc -o "+filename+" "+destexename;
      248     }
      249     system(cmd.toStdString().c_str());
      250 
      251     system(destexename.toStdString().c_str());
      252 }
      253 
      254 void MainWindow::about_it()
      255 {
      256     QMessageBox::information(this,"hello","版权所有,盗版不究");
      257 }
      258 
      259 void MainWindow::createActions()
      260 {
      261     //"打开"动作
      262     openFileAction =new QAction(QIcon("open.png"),tr("打开"),this);
      263     openFileAction->setShortcut(tr("Ctrl+O"));
      264     openFileAction->setStatusTip(tr("打开一个文件"));
      265    // connect(openFileAction,SIGNAL(triggered()),this,SLOT(ShowOpenFile()));
      266 
      267     //"新建"动作
      268     NewFileAction =new QAction(QIcon("new.png"),tr("新建"),this);
      269     NewFileAction->setShortcut(tr("Ctrl+N"));
      270     NewFileAction->setStatusTip(tr("新建一个文件"));
      271     //connect(NewFileAction,SIGNAL(triggered()),this,SLOT(ShowNewFile()));
      272 
      273     //"退出"动作
      274     exitAction =new QAction(tr("退出"),this);
      275     exitAction->setShortcut(tr("Ctrl+Q"));
      276     exitAction->setStatusTip(tr("退出程序"));
      277     //connect(exitAction,SIGNAL(triggered()),this,SLOT(close()));
      278 
      279     //"复制"动作
      280     copyAction =new QAction(QIcon("copy.png"),tr("复制"),this);
      281     copyAction->setShortcut(tr("Ctrl+C"));
      282     copyAction->setStatusTip(tr("复制文件"));
      283    // connect(copyAction,SIGNAL(triggered()),showWidget->text,SLOT(copy()));
      284 
      285     //"剪切"动作
      286     cutAction =new QAction(QIcon("cut.png"),tr("剪切"),this);
      287     cutAction->setShortcut(tr("Ctrl+X"));
      288     cutAction->setStatusTip(tr("剪切文件"));
      289     //connect(cutAction,SIGNAL(triggered()),showWidget->text,SLOT(cut()));
      290 
      291     //"粘贴"动作
      292     pasteAction =new QAction(QIcon("paste.png"),tr("粘贴"),this);
      293     pasteAction->setShortcut(tr("Ctrl+V"));
      294     pasteAction->setStatusTip(tr("粘贴文件"));
      295   //  connect(pasteAction,SIGNAL(triggered()),showWidget->text,SLOT(paste()));
      296 
      297     //"关于"动作
      298     aboutAction =new QAction(tr("关于"),this);
      299    // connect(aboutAction,SIGNAL(triggered()),this,SLOT(QApplication::aboutQt()));
      300 
      301     //"打印文本"动作
      302     PrintTextAction =new QAction(QIcon("printText.png"),tr("打印文本"), this);
      303     PrintTextAction->setStatusTip(tr("打印一个文本"));
      304    // connect(PrintTextAction,SIGNAL(triggered()),this,SLOT(ShowPrintText()));
      305 
      306     //"打印图像"动作
      307     PrintImageAction =new QAction(QIcon("printImage.png"),tr("打印图像"), this);
      308     PrintImageAction->setStatusTip(tr("打印一幅图像"));
      309   //  connect(PrintImageAction,SIGNAL(triggered()),this,SLOT(ShowPrintImage()));
      310 
      311     //"放大"动作
      312     zoomInAction =new QAction(QIcon("zoomin.png"),tr("放大"),this);
      313     zoomInAction->setStatusTip(tr("放大一张图片"));
      314    // connect(zoomInAction,SIGNAL(triggered()),this,SLOT(ShowZoomIn()));
      315 
      316     //"缩小"动作
      317     zoomOutAction =new QAction(QIcon("zoomout.png"),tr("缩小"),this);
      318     zoomOutAction->setStatusTip(tr("缩小一张图片"));
      319    // connect(zoomOutAction,SIGNAL(triggered()),this,SLOT(ShowZoomOut()));
      320 
      321     //实现图像旋转的动作(Action)
      322     //旋转90°
      323     rotate90Action =new QAction(QIcon("rotate90.png"),tr("旋转90°"),this);
      324     rotate90Action->setStatusTip(tr("将一幅图旋转90°"));
      325    // connect(rotate90Action,SIGNAL(triggered()),this,SLOT(ShowRotate90()));
      326 
      327     //旋转180°
      328     rotate180Action =new QAction(QIcon("rotate180.png"),tr("旋转180°"), this);
      329     rotate180Action->setStatusTip(tr("将一幅图旋转180°"));
      330     connect(rotate180Action,SIGNAL(triggered()),this,SLOT(ShowRotate180()));
      331 
      332     //旋转270°
      333     rotate270Action =new QAction(QIcon("rotate270.png"),tr("旋转270°"), this);
      334     rotate270Action->setStatusTip(tr("将一幅图旋转270°"));
      335    // connect(rotate270Action,SIGNAL(triggered()),this,SLOT(ShowRotate270()));
      336 
      337     //实现图像镜像的动作(Action)
      338     //纵向镜像
      339     mirrorVerticalAction =new QAction(tr ("纵向镜像"),this);
      340     mirrorVerticalAction->setStatusTip(tr("对一张图作纵向镜像"));
      341    // connect(mirrorVerticalAction,SIGNAL(triggered()),this,SLOT(ShowMirrorVertical()));
      342 
      343     //横向镜像
      344     mirrorHorizontalAction =new QAction(tr("横向镜像"),this);
      345     mirrorHorizontalAction->setStatusTip(tr("对一张图作横向镜像"));
      346     //connect(mirrorHorizontalAction,SIGNAL(triggered()),this,SLOT(ShowMirrorHorizontal()));
      347 
      348     //排序:左对齐、右对齐、居中和两端对齐
      349     actGrp =new QActionGroup(this);
      350 
      351     leftAction =new QAction(QIcon("left.png"),"左对齐",actGrp);
      352     leftAction->setCheckable(true);
      353 
      354     rightAction =new QAction(QIcon("right.png"),"右对齐",actGrp);
      355     rightAction->setCheckable(true);
      356 
      357     centerAction =new QAction(QIcon("center.png"),"居中",actGrp);
      358     centerAction->setCheckable(true);
      359 
      360     justifyAction =new QAction(QIcon("justify.png"),"两端对齐",actGrp);
      361     justifyAction->setCheckable(true);
      362 
      363    // connect(actGrp,SIGNAL(triggered(QAction*)),this,SLOT(ShowAlignment(QAction*)));
      364 
      365     //实现撤销和重做的动作(Action)
      366     //撤销和重做
      367     undoAction =new QAction(QIcon("undo.png"),"撤销",this);
      368    // connect(undoAction,SIGNAL(triggered()),showWidget->text,SLOT(undo()));
      369     redoAction =new QAction(QIcon("redo.png"),"重做",this);
      370     //connect(redoAction,SIGNAL(triggered()),showWidget->text,SLOT(redo()));
      371 }
      372 
      373 void MainWindow::createMenus()
      374 {
      375     //文件菜单
      376     fileMenu =menuBar()->addMenu(tr("文件"));
      377     fileMenu->addAction(openFileAction);
      378     fileMenu->addAction(NewFileAction);
      379     fileMenu->addAction(PrintTextAction);
      380     fileMenu->addAction(PrintImageAction);
      381     fileMenu->addSeparator();
      382     fileMenu->addAction(exitAction);
      383 
      384     //缩放菜单
      385     zoomMenu =menuBar()->addMenu(tr("编辑"));
      386     zoomMenu->addAction(copyAction);
      387     zoomMenu->addAction(cutAction);
      388     zoomMenu->addAction(pasteAction);
      389     zoomMenu->addAction(aboutAction);
      390     zoomMenu->addSeparator();
      391     zoomMenu->addAction(zoomInAction);
      392     zoomMenu->addAction(zoomOutAction);
      393 
      394     //旋转菜单
      395     rotateMenu =menuBar()->addMenu(tr("旋转"));
      396     rotateMenu->addAction(rotate90Action);
      397     rotateMenu->addAction(rotate180Action);
      398     rotateMenu->addAction(rotate270Action);
      399 
      400     //镜像菜单
      401     mirrorMenu =menuBar()->addMenu(tr("镜像"));
      402     mirrorMenu->addAction(mirrorVerticalAction);
      403     mirrorMenu->addAction(mirrorHorizontalAction);
      404 }
      405 
      406 void MainWindow::createToolBars()
      407 {
      408     //文件工具条
      409     fileTool =addToolBar("File");
      410     fileTool->addAction(openFileAction);
      411     fileTool->addAction(NewFileAction);
      412     fileTool->addAction(PrintTextAction);
      413     fileTool->addAction(PrintImageAction);
      414 
      415     //编辑工具条
      416     zoomTool =addToolBar("Edit");
      417     zoomTool->addAction(copyAction);
      418     zoomTool->addAction(cutAction);
      419     zoomTool->addAction(pasteAction);
      420     zoomTool->addSeparator();
      421     zoomTool->addAction(zoomInAction);
      422     zoomTool->addAction(zoomOutAction);
      423 
      424     //旋转工具条
      425     rotateTool =addToolBar("rotate");
      426     rotateTool->addAction(rotate90Action);
      427     rotateTool->addAction(rotate180Action);
      428     rotateTool->addAction(rotate270Action);
      429 
      430     //撤销和重做工具条
      431     doToolBar =addToolBar("doEdit");
      432     doToolBar->addAction(undoAction);
      433     doToolBar->addAction(redoAction);
      434 
      435     //字体工具条
      436     fontToolBar =addToolBar("Font");
      437     fontToolBar->addWidget(fontLabel1);
      438     fontToolBar->addWidget(fontComboBox);
      439     fontToolBar->addWidget(fontLabel2);
      440     fontToolBar->addWidget(sizeComboBox);
      441     fontToolBar->addSeparator();
      442     fontToolBar->addWidget(boldBtn);
      443     fontToolBar->addWidget(italicBtn);
      444     fontToolBar->addWidget(underlineBtn);
      445     fontToolBar->addSeparator();
      446     fontToolBar->addWidget(colorBtn);
      447 
      448     //排序工具条
      449     listToolBar =addToolBar("list");
      450     listToolBar->addWidget(listLabel);
      451     listToolBar->addWidget(listComboBox);
      452     listToolBar->addSeparator();
      453     listToolBar->addActions(actGrp->actions());
      454 }
    • main.cpp
       1 #include "mainwindow.h"
       2 #include <QApplication>
       3 
       4 
       5 int main(int argc, char *argv[])
       6 {
       7     QApplication a(argc, argv);
       8     MainWindow w;
       9     w.show();
      10     w.resize(1024,768);
      11     return a.exec();
      12 }
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  • 原文地址:https://www.cnblogs.com/xiaochi/p/8784614.html
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