//这是自己建的一个类
#include <QtGui>
#include "builtin.h"
CBuiltinDlg::CBuiltinDlg(QWidget * parent):QDialog(parent)
{
displayTextEdit = new QTextEdit(tr("Qt的标准通用对话框"));
QGridLayout * gridLayout = new QGridLayout;
colorPushBtn = new QPushButton(tr("颜色对话框"));
errorPushBtn = new QPushButton(tr("错误对话框"));
filePushBtn = new QPushButton(tr("文件对话框"));
fontPushBtn = new QPushButton(tr("字体对话框"));
inputPushBtn = new QPushButton(tr("输入对话框"));
pagePushBtn = new QPushButton(tr("页设置对话框"));
progressPushBtn = new QPushButton(tr("进度对话框"));
printPushBtn = new QPushButton(tr("打印对话框"));
gridLayout->addWidget(colorPushBtn,0,0,1,1);
gridLayout->addWidget(errorPushBtn,0,1,1,1);
gridLayout->addWidget(filePushBtn,0,2,1,1);
gridLayout->addWidget(fontPushBtn,1,0,1,1);
gridLayout->addWidget(inputPushBtn,1,1,1,1);
gridLayout->addWidget(pagePushBtn,1,2,1,1);
gridLayout->addWidget(progressPushBtn,2,0,1,1);
gridLayout->addWidget(printPushBtn,2,1,1,1);
gridLayout->addWidget(displayTextEdit,3,0,3,3);
setLayout(gridLayout);
connect(colorPushBtn,SIGNAL(clicked()),this,SLOT(doPushBtn()));
connect(errorPushBtn,SIGNAL(clicked()),this,SLOT(doPushBtn()));
connect(filePushBtn,SIGNAL(clicked()),this,SLOT(doPushBtn()));
connect(fontPushBtn,SIGNAL(clicked()),this,SLOT(doPushBtn()));
connect(inputPushBtn,SIGNAL(clicked()),this,SLOT(doPushBtn()));
connect(pagePushBtn,SIGNAL(clicked()),this,SLOT(doPushBtn()));
connect(progressPushBtn,SIGNAL(clicked()),this,SLOT(doPushBtn()));
connect(printPushBtn,SIGNAL(clicked()),this,SLOT(doPushBtn()));
setWindowTitle(tr("内建对话框"));
resize(400,300);
}
void CBuiltinDlg::doPushBtn()
{
QPushButton * btn = qobject_cast<QPushButton *>(sender());
if (btn == colorPushBtn)
{//颜色对话框
QPalette palette = displayTextEdit->palette();
const QColor & color = QColorDialog::getColor(palette.color(QPalette::Base),this);
if (color.isValid())
{
palette.setColor(QPalette::Base,color);
displayTextEdit->setPalette(palette);
}
}
else if (btn == errorPushBtn)
{//错误消息框
QErrorMessage box(this);
box.setWindowTitle(tr("错误消息框"));
box.showMessage(tr("错误消息框实例xx"));
box.showMessage(tr("错误消息框实例xx"));
box.showMessage(tr("错误消息框实例xx"));
box.showMessage(tr("错误消息框实例yy"));
box.showMessage(tr("错误消息框实例zz"));
box.exec();
}
else if (btn == filePushBtn)
{//文件对话框
QString fileName = QFileDialog::getOpenFileName(
this,
tr("打开文件"),
"/usr/local/Trolltech",
tr("任何文件(*.*)"
";;文本文件(*.txt)"
";;XML文件(*.xml)"));
displayTextEdit->setText(fileName);
}
else if (btn == fontPushBtn)
{//字体对话框
bool ok=false;
const QFont& font = QFontDialog::getFont(
&ok,
displayTextEdit->font(),
this,
tr("字体对话框"));
if (true==ok)
{//如果<确定>，设置字体
displayTextEdit->setFont(font);
}
}
else if (btn == inputPushBtn)
{//输入对话框
bool ok=false;
QString text = QInputDialog::getText(
this,
tr("输入对话框"),
tr("输入文本"),
QLineEdit::Normal,
QDir::home().dirName(),
&ok);
if (true==ok && !text.isEmpty())
displayTextEdit->setText(text);
}
else if (btn == pagePushBtn)
{//页设置对话框
QPrinter printer;
QPageSetupDialog dlg(&printer,this);
dlg.setWindowTitle(tr("页设置对话框"));
if (dlg.exec() == QDialog::Accepted)
{
//进行下一步处理
}
}
else if (btn == progressPushBtn)
{//进度对话框
QProgressDialog progress(tr("正在复制文件..."),
tr("取消"),
0,
10000,
this);
progress.setWindowModality(Qt::WindowModal);
progress.setWindowTitle(tr("进度对话框"));
progress.show();
for (int i=0;i<10000;i++)
{
progress.setValue(i);
qApp->processEvents();
if (progress.wasCanceled())
break;
qDebug() << i;
}
progress.setValue(10000);
}
else if (btn == printPushBtn)
{//打印对话框
QPrinter printer;
QPrintDialog dlg(&printer,this);
dlg.setWindowTitle(tr("打印对话框"));
if (dlg.exec() == QDialog::Accepted)
{
//进行下一步处理
}
}
}
