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楼主 |
发表于 2012-11-30 15:32:36
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- #include<QtGui>
- #include"finddialog.h"
- FindDialog ::FindDialog(QWidget*parent):QDialog(parent)
- {
- //parent参数传递给了基类的构造函数
- label=new QLabel(tr("Find &what:"));
- lineEdit=new QLineEdit;
- label->setBuddy(lineEdit);
- caseCheckBox=new QCheckBox(tr("Match &case"));
- backwardCheckBox=new QCheckBox(tr("serch &backward"));
- findButton=new QPushButton(tr("&Find"));
- findButton->setDefault(true);
- findButton->setEnabled(false);
- closeButton=new QPushButton(tr("close"));
-
- connect(lineEdit,SIGNAL(textChanged(const QString &)),this,SLOT(enableFindButton(const QString &)));
- connect(findButton,SIGNAL(clicked()),this,SLOT(findClicked()));
- connect(closeButton,SIGNAL(clicked()),this,SLOT(close()));
- QHBoxLayout *topLeftLayout =new QHBoxLayout;
- topLeftLayout->addWidget(label);
- topLeftLayout->addWidget(lineEdit);
- QVBoxLayout *leftLayout=new QVBoxLayout;
- leftLayout->addLayout(topLeftLayout);
- leftLayout->addWidget(caseCheckBox);
- leftLayout->addWidget(backwardCheckBox);
- QVBoxLayout *rightLayout=new QVBoxLayout;
- rightLayout->addWidget(findButton);
- rightLayout->addWidget(closeButton);
- rightLayout->addStretch();
- QHBoxLayout *mainLayout=new QHBoxLayout;
- mainLayout->addLayout(leftLayout);
- mainLayout->addLayout(rightLayout);
- setLayout(mainLayout);
- setWindowTitle(tr("Find"));
- setFixedHeight(sizeHint().height());
- }
- void FindDialog::findClicked()
- {
- QString text =lineEdit->text();
- Qt::CaseSensitivity cs=caseCheckBox->isChecked()?Qt::CaseSensitive:Qt::CaseInsensitive;
- if(backwardCheckBox->isChecked())
- {
- emit findPrevious(text,cs);
- }
- else
- {
- emit findNext(text,cs);
- }
- }
- void FindDialog ::enableFindButton(const QString &text)
- {
- findButton->setEnabled(!text.isEmpty());
- }
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