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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qlineedit.h"
#include "qlineedit_p.h"
#ifndef QT_NO_LINEEDIT
#include "qabstractitemview.h"
#include "qclipboard.h"
#ifndef QT_NO_ACCESSIBILITY
#include "qaccessible.h"
#endif
#ifndef QT_NO_IM
#include "qinputcontext.h"
#include "qlist.h"
#endif
QT_BEGIN_NAMESPACE
const int QLineEditPrivate::verticalMargin(1);
const int QLineEditPrivate::horizontalMargin(2);
int QLineEditPrivate::xToPos(int x, QTextLine::CursorPosition betweenOrOn) const
{
QRect cr = adjustedContentsRect();
x-= cr.x() - hscroll + horizontalMargin;
return control->xToPos(x, betweenOrOn);
}
QRect QLineEditPrivate::cursorRect() const
{
QRect cr = adjustedContentsRect();
int cix = cr.x() - hscroll + horizontalMargin;
QRect crect = control->cursorRect();
crect.moveTo(crect.topLeft() + QPoint(cix, vscroll));
return crect;
}
#ifndef QT_NO_COMPLETER
void QLineEditPrivate::_q_completionHighlighted(QString newText)
{
Q_Q(QLineEdit);
if (control->completer()->completionMode() != QCompleter::InlineCompletion) {
q->setText(newText);
} else {
int c = control->cursor();
QString text = control->text();
q->setText(text.left(c) + newText.mid(c));
control->moveCursor(control->end(), false);
control->moveCursor(c, true);
}
}
#endif // QT_NO_COMPLETER
void QLineEditPrivate::_q_handleWindowActivate()
{
Q_Q(QLineEdit);
if (!q->hasFocus() && control->hasSelectedText())
control->deselect();
}
void QLineEditPrivate::_q_textEdited(const QString &text)
{
Q_Q(QLineEdit);
emit q->textEdited(text);
#ifndef QT_NO_COMPLETER
if (control->completer()
&& control->completer()->completionMode() != QCompleter::InlineCompletion)
control->complete(-1); // update the popup on cut/paste/del
#endif
}
void QLineEditPrivate::_q_cursorPositionChanged(int from, int to)
{
Q_Q(QLineEdit);
q->update();
emit q->cursorPositionChanged(from, to);
}
#ifdef QT_KEYPAD_NAVIGATION
void QLineEditPrivate::_q_editFocusChange(bool e)
{
Q_Q(QLineEdit);
q->setEditFocus(e);
}
#endif
void QLineEditPrivate::_q_selectionChanged()
{
Q_Q(QLineEdit);
if (control->preeditAreaText().isEmpty()) {
QStyleOptionFrameV2 opt;
q->initStyleOption(&opt);
bool showCursor = control->hasSelectedText() ?
q->style()->styleHint(QStyle::SH_BlinkCursorWhenTextSelected, &opt, q):
true;
setCursorVisible(showCursor);
}
emit q->selectionChanged();
}
void QLineEditPrivate::init(const QString& txt)
{
Q_Q(QLineEdit);
control = new QLineControl(txt);
control->setFont(q->font());
QObject::connect(control, SIGNAL(textChanged(QString)),
q, SIGNAL(textChanged(QString)));
QObject::connect(control, SIGNAL(textEdited(QString)),
q, SLOT(_q_textEdited(QString)));
QObject::connect(control, SIGNAL(cursorPositionChanged(int,int)),
q, SLOT(_q_cursorPositionChanged(int,int)));
QObject::connect(control, SIGNAL(selectionChanged()),
q, SLOT(_q_selectionChanged()));
QObject::connect(control, SIGNAL(accepted()),
q, SIGNAL(returnPressed()));
QObject::connect(control, SIGNAL(editingFinished()),
q, SIGNAL(editingFinished()));
#ifdef QT_KEYPAD_NAVIGATION
QObject::connect(control, SIGNAL(editFocusChange(bool)),
q, SLOT(_q_editFocusChange(bool)));
#endif
QObject::connect(control, SIGNAL(cursorPositionChanged(int,int)),
q, SLOT(updateMicroFocus()));
// for now, going completely overboard with updates.
QObject::connect(control, SIGNAL(selectionChanged()),
q, SLOT(update()));
QObject::connect(control, SIGNAL(displayTextChanged(QString)),
q, SLOT(update()));
QObject::connect(control, SIGNAL(updateNeeded(QRect)),
q, SLOT(update()));
QStyleOptionFrameV2 opt;
q->initStyleOption(&opt);
control->setPasswordCharacter(q->style()->styleHint(QStyle::SH_LineEdit_PasswordCharacter, &opt, q));
#ifndef QT_NO_CURSOR
q->setCursor(Qt::IBeamCursor);
#endif
q->setFocusPolicy(Qt::StrongFocus);
q->setAttribute(Qt::WA_InputMethodEnabled);
// Specifies that this widget can use more, but is able to survive on
// less, horizontal space; and is fixed vertically.
q->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed, QSizePolicy::LineEdit));
q->setBackgroundRole(QPalette::Base);
q->setAttribute(Qt::WA_KeyCompression);
q->setMouseTracking(true);
q->setAcceptDrops(true);
q->setAttribute(Qt::WA_MacShowFocusRect);
}
QRect QLineEditPrivate::adjustedContentsRect() const
{
Q_Q(const QLineEdit);
QStyleOptionFrameV2 opt;
q->initStyleOption(&opt);
QRect r = q->style()->subElementRect(QStyle::SE_LineEditContents, &opt, q);
r.setX(r.x() + leftTextMargin);
r.setY(r.y() + topTextMargin);
r.setRight(r.right() - rightTextMargin);
r.setBottom(r.bottom() - bottomTextMargin);
return r;
}
void QLineEditPrivate::setCursorVisible(bool visible)
{
Q_Q(QLineEdit);
if ((bool)cursorVisible == visible)
return;
cursorVisible = visible;
QRect r = cursorRect();
if (control->inputMask().isEmpty())
q->update(r);
else
q->update();
}
void QLineEditPrivate::updatePasswordEchoEditing(bool editing)
{
Q_Q(QLineEdit);
control->updatePasswordEchoEditing(editing);
q->setAttribute(Qt::WA_InputMethodEnabled, shouldEnableInputMethod());
}
/*!
This function is not intended as polymorphic usage. Just a shared code
fragment that calls QInputContext::mouseHandler for this
class.
*/
bool QLineEditPrivate::sendMouseEventToInputContext( QMouseEvent *e )
{
#if !defined QT_NO_IM
Q_Q(QLineEdit);
if ( control->composeMode() ) {
int tmp_cursor = xToPos(e->pos().x());
int mousePos = tmp_cursor - control->cursor();
if ( mousePos < 0 || mousePos > control->preeditAreaText().length() ) {
mousePos = -1;
// don't send move events outside the preedit area
if ( e->type() == QEvent::MouseMove )
return true;
}
QInputContext *qic = q->inputContext();
if ( qic )
// may be causing reset() in some input methods
qic->mouseHandler(mousePos, e);
if (!control->preeditAreaText().isEmpty())
return true;
}
#else
Q_UNUSED(e);
#endif
return false;
}
#ifndef QT_NO_DRAGANDDROP
void QLineEditPrivate::drag()
{
Q_Q(QLineEdit);
dndTimer.stop();
QMimeData *data = new QMimeData;
data->setText(control->selectedText());
QDrag *drag = new QDrag(q);
drag->setMimeData(data);
Qt::DropAction action = drag->start();
if (action == Qt::MoveAction && !control->isReadOnly() && drag->target() != q)
control->removeSelection();
}
#endif // QT_NO_DRAGANDDROP
QT_END_NAMESPACE
#endif
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