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/*
* Copyright (c) 2010 Kevin Smith
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include "QtTextEdit.h"
#include <QFontMetrics>
#include <QKeyEvent>
namespace Swift {
QtTextEdit::QtTextEdit(QWidget* parent) : QTextEdit(parent){
connect(this, SIGNAL(textChanged()), this, SLOT(handleTextChanged()));
handleTextChanged();
};
void QtTextEdit::keyPressEvent(QKeyEvent* event) {
int key = event->key();
Qt::KeyboardModifiers modifiers = event->modifiers();
if ((key == Qt::Key_Enter || key == Qt::Key_Return)
&& (modifiers == Qt::NoModifier || modifiers == Qt::KeypadModifier)) {
emit returnPressed();
} else if (((key == Qt::Key_PageUp || key == Qt::Key_PageDown) && modifiers == Qt::ShiftModifier)
|| (key == Qt::Key_C && modifiers == Qt::ControlModifier && textCursor().selectedText().isEmpty())
|| (key == Qt::Key_W && modifiers == Qt::ControlModifier)
|| (key == Qt::Key_PageUp && modifiers == Qt::ControlModifier)
|| (key == Qt::Key_PageDown && modifiers == Qt::ControlModifier)
// || (key == Qt::Key_Left && modifiers == (Qt::ControlModifier | Qt::ShiftModifier))
// || (key == Qt::Key_Right && modifiers == (Qt::ControlModifier | Qt::ShiftModifier))
|| (key == Qt::Key_Tab && modifiers == Qt::ControlModifier)
|| (key == Qt::Key_A && modifiers == Qt::AltModifier)
|| (key == Qt::Key_Tab)
) {
emit unhandledKeyPressEvent(event);
} else {
QTextEdit::keyPressEvent(event);
}
}
void QtTextEdit::handleTextChanged() {
QSize previous(maximumSize());
setMaximumSize(QSize(maximumWidth(), sizeHint().height()));
if (previous != maximumSize()) {
updateGeometry();
}
}
QSize QtTextEdit::sizeHint() const {
QFontMetrics inputMetrics(currentFont());
QRect horizontalBounds = contentsRect().adjusted(0,0,0,9999);
QRect boundingRect = inputMetrics.boundingRect(horizontalBounds, Qt::TextWordWrap, toPlainText() + "A");
int left, top, right, bottom;
getContentsMargins(&left, &top, &right, &bottom);
int height = boundingRect.height() + top + bottom + inputMetrics.height();
return QSize(width(), height);
//int numberOfLines = 1;
//int lineHeight = inputMetrics.lineSpacing();
//return QSize(QTextEdit::sizeHint().width(), lineHeight * numberOfLines);
}
}
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Swift