界面
代码
qwmainwindow.h
namespace Ui {
class QWMainWindow;
}
class QWMainWindow : public QMainWindow
{
Q_OBJECT
private:
//重载函数，可在里面加入图片
void paintEvent(QPaintEvent *event);
public:
explicit QWMainWindow(QWidget *parent = 0);
~QWMainWindow();
private slots:
void on_tabWidget_tabCloseRequested(int index);
void on_actWidgetInsite_triggered();
void on_actWindowInsite_triggered();
void on_actWindow_triggered();
void on_actWidget_triggered();
void on_tabWidget_currentChanged(int index);
private:
Ui::QWMainWindow *ui;
};
// QWMAINWINDOW_H
qwmainwindow.cpp
void QWMainWindow::paintEvent(QPaintEvent *event)
{ //绘制窗口背景图片
Q_UNUSED(event);
QPainter painter(this);
// x, y, w.h
//0，工具栏下面第一行，this（mainwindow）的宽度，户界面减去上下工具栏和状态栏的高度
painter.drawPixmap(0,ui->mainToolBar->height(),this->width(),
this->height()-ui->mainToolBar->height()-ui->statusBar->height(),
QPixmap(":/images/images/back2.jpg"));
}
QWMainWindow::QWMainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::QWMainWindow)
{
ui->setupUi(this);
ui->tabWidget->setVisible(false); //希望刚启动的时候图片显示出来，所以可视化设为false
ui->tabWidget->clear();//清除所有页面
ui->tabWidget->tabsClosable(); //Page有关闭按钮，可被关闭
this->setCentralWidget(ui->tabWidget);
// this->setWindowState(Qt::WindowFullScreen); //窗口最大化显示
this->setWindowState(Qt::WindowMaximized); //窗口最大化显示
// this->setWindowState(Qt::WindowMinimized); //窗口最大化显示
this->setAutoFillBackground(true);
// this->setAttribute(Qt::WA_DeleteOnClose); //关闭时自动删除
// Qt::WindowFlags flags=this->windowFlags();
// this->setWindowFlags(flags | Qt::MSWindowsFixedSizeDialogHint); //设置对话框固定大小
}
QWMainWindow::~QWMainWindow()
{
delete ui;
}
void QWMainWindow::on_tabWidget_tabCloseRequested(int index)
{//关闭Tab
if (index<0)
return;
QWidget* aForm=ui->tabWidget->widget(index);
aForm->close();
}
void QWMainWindow::on_actWidgetInsite_triggered()
{ //创建QFormDoc窗体，并在tabWidget中显示
QFormDoc *formDoc = new QFormDoc(this); //不指定父窗口，单独用show()方法显示
formDoc->setAttribute(Qt::WA_DeleteOnClose); //关闭时自动删除
// formDoc->setWindowFlag(Qt::Widget,true);
// formDoc->setWindowFlag(Qt::CustomizeWindowHint,true);
// formDoc->setWindowFlag(Qt::WindowMinMaxButtonsHint,false);
// formDoc->setWindowState(Qt::WindowMaximized);
// formDoc->setWindowOpacity(0.5);
// formDoc->setWindowModality(Qt::WindowModal);
// formDoc->show(); //在单独的窗口中显示
// formDoc->setWindowTitle("基于QWidget的窗口，无父窗口，关闭时删除");
//返回的是当前第几个
int cur=ui->tabWidget->addTab(formDoc,
QString::asprintf("Doc %d",ui->tabWidget->count()));//参数2是标题
ui->tabWidget->setCurrentIndex(cur);
ui->tabWidget->setVisible(true);
}
void QWMainWindow::on_actWindowInsite_triggered()
{
QFormTable *formTable = new QFormTable(this);
formTable->setAttribute(Qt::WA_DeleteOnClose); //关闭时自动删除
// aTable->setWindowTitle("基于QWidget的窗口，无父窗口，关闭时删除");
int cur=ui->tabWidget->addTab(formTable,
QString::asprintf("Table %d",ui->tabWidget->count()));
ui->tabWidget->setCurrentIndex(cur);
ui->tabWidget->setVisible(true);
}
void QWMainWindow::on_actWindow_triggered()
{
QFormTable* formTable = new QFormTable(this);
// formChart = new QFormTable(); //无父窗体,在windows任务栏上有显示
formTable->setAttribute(Qt::WA_DeleteOnClose); //对话框关闭时自动删除对话框对象,用于不需要读取返回值的对话框
formTable->setWindowTitle("基于QMainWindow的窗口，指定父窗口，关闭时删除");
// formChart->setWindowTitle("多实例窗口，指定父窗口");
formTable->show();
}
void QWMainWindow::on_actWidget_triggered()
{
QFormDoc *formDoc = new QFormDoc(); //不指定父窗口，用show()显示
formDoc->setAttribute(Qt::WA_DeleteOnClose); //关闭时自动删除
formDoc->setWindowTitle("基于QWidget的窗体，无父窗口，关闭时删除");
formDoc->setWindowFlag(Qt::Window,true);
// formDoc->setWindowFlag(Qt::CustomizeWindowHint,true);
// formDoc->setWindowFlag(Qt::WindowMinMaxButtonsHint,true);
// formDoc->setWindowFlag(Qt::WindowCloseButtonHint,true);
// formDoc->setWindowFlag(Qt::WindowStaysOnTopHint,true);
// formDoc->setWindowState(Qt::WindowMaximized);
formDoc->setWindowOpacity(0.9);
// formDoc->setWindowModality(Qt::WindowModal);
formDoc->show(); //在单独的窗口中显示
}
void QWMainWindow::on_tabWidget_currentChanged(int index)
{
Q_UNUSED(index);
bool en=ui->tabWidget->count()>0; //再无页面时，actions禁用
ui->tabWidget->setVisible(en);
}
qformdoc.h
namespace Ui {
class QFormDoc;
}
class QFormDoc : public QWidget
{
Q_OBJECT
private:
QString mCurrentFile; //当前文件
public:
explicit QFormDoc(QWidget *parent = 0);
~QFormDoc();
void loadFromFile(QString& aFileName);
private slots:
void on_actOpen_triggered();
void on_actFont_triggered();
private:
Ui::QFormDoc *ui;
};
// QFORMDOC_H
qformdoc.cpp
QFormDoc::QFormDoc(QWidget *parent) :
QWidget(parent),
ui(new Ui::QFormDoc)
{
ui->setupUi(this);
//使用UI设计的Actions设计工具栏
QToolBar* locToolBar = new QToolBar(tr("文档"),this); //创建工具栏
locToolBar->addAction(ui->actOpen);
locToolBar->addAction(ui->actFont);
locToolBar->addSeparator();
locToolBar->addAction(ui->actCut);
locToolBar->addAction(ui->actCopy);
locToolBar->addAction(ui->actPaste);
locToolBar->addAction(ui->actUndo);
locToolBar->addAction(ui->actRedo);
locToolBar->addSeparator();
locToolBar->addAction(ui->actClose);
locToolBar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
// locToolBar->setAutoFillBackground(true);
QVBoxLayout *Layout = new QVBoxLayout();
Layout->addWidget(locToolBar); //设置工具栏和编辑器上下布局
Layout->addWidget(ui->plainTextEdit);
Layout->setContentsMargins(2,2,2,2); //减小边框的宽度
Layout->setSpacing(2);
this->setLayout(Layout); //设置布局
// this->setAutoFillBackground(true); //避免工具栏显示背景图片
}
QFormDoc::~QFormDoc()
{
// QMessageBox::information(this, "消息", "QFormDoc对象被删除和释放");
delete ui;
}
void QFormDoc::loadFromFile(QString &aFileName)
{
QString str;
QFile aFile(aFileName); //以文件方式读出
if (aFile.open(QIODevice::ReadOnly | QIODevice::Text)) //以只读文本方式打开文件
{
QTextStream aStream(&aFile); //用文本流读取文件
ui->plainTextEdit->clear();//清空
while (!aStream.atEnd())
{
str=aStream.readLine();//读取文件的一行
ui->plainTextEdit->appendPlainText(str); //添加到文本框显示
}
aFile.close();//关闭文件
mCurrentFile=aFileName;
QFileInfo fileInfo(aFileName);
QString shorName=fileInfo.fileName();
this->setWindowTitle(shorName);
}
}
void QFormDoc::on_actOpen_triggered()
{
// curPath=QCoreApplication::applicationDirPath(); //获取应用程序的路径
QString curPath=QDir::currentPath();
//调用打开文件对话框打开一个文件
QString aFileName=QFileDialog::getOpenFileName(this,tr("打开一个文件"),curPath,
"C程序文件文件(*.h *cpp);;文本文件(*.txt);;所有文件(*.*)");
if (aFileName.isEmpty())
return; //如果未选择文件，退出
loadFromFile(aFileName);
}
void QFormDoc::on_actFont_triggered()
{
QFont font;
font=ui->plainTextEdit->font();
bool ok;
font=QFontDialog::getFont(&ok,font);
ui->plainTextEdit->setFont(font);
}
qformtable.h
namespace Ui {
class QFormTable;
}
class QFormTable : public QMainWindow
{
Q_OBJECT
private:
QWDialogHeaders *dlgSetHeaders=NULL;//设置表头文字对话框, 一次创建，exec()重复调用
QStandardItemModel *theModel;//数据模型
QItemSelectionModel *theSelection;//Item选择模型
public:
explicit QFormTable(QWidget *parent = 0);
~QFormTable();
private slots:
void on_actSize_triggered();
void on_actSetHeader_triggered();
private:
Ui::QFormTable *ui;
};
// QFORMTABLE_H
qformtable.cpp
QFormTable::QFormTable(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::QFormTable)
{
ui->setupUi(this);
theModel = new QStandardItemModel(12,6,this); //数据模型
theSelection = new QItemSelectionModel(theModel);//Item选择模型
//为tableView设置数据模型
ui->tableView->setModel(theModel); //设置数据模型
ui->tableView->setSelectionModel(theSelection);//设置选择模型
// QMessageBox::information(this, "消息", "表格窗口被创建");
}
QFormTable::~QFormTable()
{
// QMessageBox::information(this, "消息", "FormTable窗口被删除和释放");
delete ui;
}
void QFormTable::on_actSize_triggered()
{
QWDialogSize *dlgTableSize=new QWDialogSize(this); //创建对话框
Qt::WindowFlags flags=dlgTableSize->windowFlags();
dlgTableSize->setWindowFlags(flags | Qt::MSWindowsFixedSizeDialogHint); //设置对话框固定大小
dlgTableSize->setRowColumn(theModel->rowCount(),theModel->columnCount()); //对话框数据初始化
int ret=dlgTableSize->exec();// 以模态方式显示对话框，用户关闭对话框时返回 DialogCode值
if (ret==QDialog::Accepted) //OK键被按下,对话框关闭，若设置了setAttribute(Qt::WA_DeleteOnClose)，对话框被释放，无法获得返回值
{ //OK键被按下，获取对话框上的输入，设置行数和列数
int cols=dlgTableSize->columnCount();
theModel->setColumnCount(cols);
int rows=dlgTableSize->rowCount();
theModel->setRowCount(rows);
}
delete dlgTableSize; //删除对话框
}
void QFormTable::on_actSetHeader_triggered()
{
if (dlgSetHeaders==NULL) //如果对象没有被创建过，就创建对象
dlgSetHeaders = new QWDialogHeaders(this);
if (dlgSetHeaders->headerList().count()!=theModel->columnCount())
{
QStringList strList;
for (int i=0;i<theModel->columnCount();i++)//获取现有的表头标题
strList.append(theModel->headerData(i,Qt::Horizontal,Qt::DisplayRole).toString());
dlgSetHeaders->setHeaderList(strList);//用于对话框初始化显示
}
int ret=dlgSetHeaders->exec();// 以模态方式显示对话框
if (ret==QDialog::Accepted) //OK键被按下
{
QStringList strList=dlgSetHeaders->headerList();//获取对话框上修改后的StringList
theModel->setHorizontalHeaderLabels(strList);// 设置模型的表头标题
}
}
qwdialogheaders.h
namespace Ui {
class QWDialogHeaders;
}
class QWDialogHeaders : public QDialog
{
Q_OBJECT
private:
QStringListModel *model;
public:
explicit QWDialogHeaders(QWidget *parent = 0);
~QWDialogHeaders();
void setHeaderList(QStringList& headers);
QStringList headerList();
private:
Ui::QWDialogHeaders *ui;
};
// QWDIALOGHEADERS_H
qwdialogheaders.cpp
QWDialogHeaders::QWDialogHeaders(QWidget *parent) :
QDialog(parent),
ui(new Ui::QWDialogHeaders)
{
ui->setupUi(this);
model= new QStringListModel;
ui->listView->setModel(model);
}
QWDialogHeaders::~QWDialogHeaders()
{
// QMessageBox::information(this, "消息", "DialogHeaders对话框被删除和释放");
delete ui;
}
void QWDialogHeaders::setHeaderList(QStringList &headers)
{
model->setStringList(headers);
}
QStringList QWDialogHeaders::headerList()
{
return model->stringList();
}
qwdialogsize.h
namespace Ui {
class QWDialogSize;
}
class QWDialogSize : public QDialog
{
Q_OBJECT
public:
explicit QWDialogSize(QWidget *parent = 0);
~QWDialogSize();
int rowCount();//获取对话框输入的行数
int columnCount();//获取对话框输入的列数
void setRowColumn(int row, int column); //初始对话框上两个SpinBox的值
private slots:
private:
Ui::QWDialogSize *ui;
};
// QWDIALOGSIZE_H
qwqialogsize.cpp
QWDialogSize::QWDialogSize(QWidget *parent) :
QDialog(parent),
ui(new Ui::QWDialogSize)
{
ui->setupUi(this);
}
QWDialogSize::~QWDialogSize()
{
// QMessageBox::information(this,"提示","DialogSize对话框被删除");
delete ui;
}
int QWDialogSize::rowCount()
{ //用于主窗口调用获得行数的输入值
return ui->spinBoxRow->value();
}
int QWDialogSize::columnCount()
{//用于主窗口调用获得列数的输入值
return ui->spinBoxColumn->value();
}
void QWDialogSize::setRowColumn(int row, int column)
{ //初始化数据显示
ui->spinBoxRow->setValue(row);
ui->spinBoxColumn->setValue(column);
}
主要是给自己看的，所以肯定会出现很多错误哈哈哈哈哈
