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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the Qt Designer 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of Qt Designer. This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//
#ifndef FILTERWIDGET_H
#define FILTERWIDGET_H
#include "shared_global_p.h"
#include <QtGui/QWidget>
#include <QtGui/QLineEdit>
#include <QtGui/QColor>
QT_BEGIN_NAMESPACE
class QPushButton;
namespace qdesigner_internal {
/* A line edit that displays a grayed hintText (like "Type Here to Filter")
* when not focussed and empty. When connecting to the changed signals and
* querying text, one has to be aware that the text is set to that hint
* text if isShowingHintText() returns true (that is, does not contain
* valid user input). This widget should never have initial focus
* (ie, be the first widget of a dialog, else, the hint cannot be displayed.
* For situations, where it is the only focusable control (widget box),
* there is a special "refuseFocus()" mode, in which it clears the focus
* policy and focusses explicitly on click (note that setting Qt::ClickFocus
* is not sufficient for that as an ActivationFocus will occur). */
class QDESIGNER_SHARED_EXPORT HintLineEdit : public QLineEdit {
Q_OBJECT
public:
explicit HintLineEdit(QWidget *parent = 0);
QString hintText() const;
bool isShowingHintText() const;
// Convenience for accessing the text that returns "" in case of isShowingHintText().
QString typedText() const;
bool refuseFocus() const;
void setRefuseFocus(bool v);
public slots:
void setHintText(const QString &ht);
void showHintText(bool force = false);
void hideHintText();
protected:
virtual void mousePressEvent(QMouseEvent *event);
virtual void focusInEvent(QFocusEvent *e);
virtual void focusOutEvent(QFocusEvent *e);
private:
void setTextColor(const QColor &newColor, QColor *oldColor = 0);
const Qt::FocusPolicy m_defaultFocusPolicy;
const QColor m_hintColor;
QColor m_textColor;
bool m_refuseFocus;
QString m_hintText;
bool m_showingHintText;
};
// FilterWidget: For filtering item views, with reset button Uses HintLineEdit.
class QDESIGNER_SHARED_EXPORT FilterWidget : public QWidget
{
Q_OBJECT
public:
enum LayoutMode {
// For use in toolbars: Expand to the right
LayoutAlignRight,
// No special alignment
LayoutAlignNone
};
explicit FilterWidget(QWidget *parent = 0, LayoutMode lm = LayoutAlignRight);
QString text() const;
bool refuseFocus() const; // see HintLineEdit
void setRefuseFocus(bool v);
signals:
void filterChanged(const QString &);
public slots:
void reset();
private slots:
void checkButton(const QString &text);
private:
QPushButton *m_button;
HintLineEdit *m_editor;
};
} // namespace qdesigner_internal
QT_END_NAMESPACE
#endif
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