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#include "findwidget.h"
FindWidget::FindWidget(QWidget *parent, QTextEdit *edit) :
QWidget(parent)
{
mTextpage = edit;
findEdit = new QLineEdit(this);
QPushButton *closeButton= new QPushButton(this->style()->standardIcon(QStyle::SP_TitleBarCloseButton),"",this);
QPushButton *nextButton= new QPushButton(QIcon(":button_next.png"), "");
QPushButton *previousButton= new QPushButton(QIcon(":button_previous.png"), "");
QHBoxLayout *notificationWidgetLayout = new QHBoxLayout(this);
notificationWidgetLayout->setContentsMargins(10,0,0,0);
notificationWidgetLayout->addWidget(new QLabel(tr("Find:")));
notificationWidgetLayout->addWidget(findEdit,2);
notificationWidgetLayout->addWidget(nextButton);
notificationWidgetLayout->addWidget(previousButton);
notificationWidgetLayout->addWidget(closeButton);
this->setLayout(notificationWidgetLayout);
connect(findEdit,SIGNAL(textEdited(QString)),this,SLOT(slotFind()));
connect(findEdit,SIGNAL(returnPressed()),this,SLOT(slotFindNext()));
connect(nextButton,SIGNAL(clicked()),this,SLOT(slotFindNext()));
connect(previousButton,SIGNAL(clicked()),this,SLOT(slotFindPrevious()));
connect(closeButton,SIGNAL(clicked()),this,SLOT(slotClose()));
// The timer is necessary for setting the focus
QTimer::singleShot(0, findEdit, SLOT(setFocus()));
}
void FindWidget::setBackground()
{
QTextCursor cursor = mTextpage->textCursor();
// if match is found set background of QLineEdit to white, otherwise to red
QPalette bgPalette( findEdit->palette() );
if (!findEdit->text().isEmpty() && mTextpage->document()->find(findEdit->text()).position() < 0 ) {
bgPalette.setColor( QPalette::Base, "#ececba");
} else {
bgPalette.setColor( QPalette::Base, Qt::white);
}
findEdit->setPalette(bgPalette);
}
void FindWidget::slotFindNext()
{
QTextCursor cursor = mTextpage->textCursor();
cursor = mTextpage->document()->find(findEdit->text(), cursor, QTextDocument::FindCaseSensitively);
// if end of document is reached, restart search from beginning
if (cursor.position() == -1) {
cursor = mTextpage->document()->find(findEdit->text(), cursor, QTextDocument::FindCaseSensitively);
}
// cursor should not stay at -1, otherwise text is not editable
// todo: check how gedit handles this
if(cursor.position() != -1) {
mTextpage->setTextCursor(cursor);
}
this->setBackground();
}
void FindWidget::slotFind()
{
QTextCursor cursor = mTextpage->textCursor();
if (cursor.anchor() == -1) {
cursor = mTextpage->document()->find(findEdit->text(), cursor, QTextDocument::FindCaseSensitively);
} else {
cursor = mTextpage->document()->find(findEdit->text(), cursor.anchor(), QTextDocument::FindCaseSensitively);
}
// if end of document is reached, restart search from beginning
if (cursor.position() == -1) {
cursor = mTextpage->document()->find(findEdit->text(), cursor, QTextDocument::FindCaseSensitively);
}
// cursor should not stay at -1, otherwise text is not editable
// todo: check how gedit handles this
if(cursor.position() != -1) {
mTextpage->setTextCursor(cursor);
}
this->setBackground();
}
void FindWidget::slotFindPrevious()
{
QTextDocument::FindFlags flags;
flags |= QTextDocument::FindBackward;
flags |= QTextDocument::FindCaseSensitively;
QTextCursor cursor = mTextpage->textCursor();
cursor = mTextpage->document()->find(findEdit->text(), cursor, flags);
// if begin of document is reached, restart search from end
if (cursor.position() == -1) {
cursor = mTextpage->document()->find(findEdit->text(), QTextCursor::End, flags);
}
// cursor should not stay at -1, otherwise text is not editable
// todo: check how gedit handles this
if(cursor.position() != -1) {
mTextpage->setTextCursor(cursor);
}
this->setBackground();
}
void FindWidget::keyPressEvent( QKeyEvent* e )
{
switch ( e->key() )
{
case Qt::Key_Escape:
this->slotClose();
break;
case Qt::Key_F3:
if (e->modifiers() & Qt::ShiftModifier) {
this->slotFindPrevious();
} else {
this->slotFindNext();
}
break;
}
}
void FindWidget::slotClose() {
QTextCursor cursor = mTextpage->textCursor();
if ( cursor.position() == -1) {
cursor.setPosition(0);
mTextpage->setTextCursor(cursor);
}
mTextpage->setFocus();
close();
}
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