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/***************************************************************************
* Copyright (C) 2006 by Peter Penz *
* [email protected] *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
#ifndef STATUSBARMESSAGELABEL_H
#define STATUSBARMESSAGELABEL_H
#include <dolphinstatusbar.h>
#include <QtCore/QList>
#include <QtGui/QPixmap>
#include <QtGui/QWidget>
class QPaintEvent;
class QResizeEvent;
class QPushButton;
class QTimer;
/**
* @brief Represents a message text label as part of the status bar.
*
* Dependent from the given type automatically a corresponding icon
* is shown in front of the text. For message texts having the type
* DolphinStatusBar::Error a dynamic color blending is done to get the
* attention from the user.
*/
class StatusBarMessageLabel : public QWidget
{
Q_OBJECT
public:
explicit StatusBarMessageLabel(QWidget* parent);
virtual ~StatusBarMessageLabel();
void setMessage(const QString& text, DolphinStatusBar::Type type);
DolphinStatusBar::Type type() const
{
return m_type;
}
const QString& text() const
{
return m_text;
}
void setDefaultText(const QString& text)
{
m_defaultText = text;
}
const QString& defaultText() const
{
return m_defaultText;
}
// TODO: maybe a better approach is possible with the size hint
void setMinimumTextHeight(int min);
int minimumTextHeight() const
{
return m_minTextHeight;
}
/**
* Returns the gap of the width of the current set text to the
* width of the message label. A gap <= 0 means that the text
* fits into the available width.
*/
int widthGap() const;
protected:
/** @see QWidget::paintEvent() */
virtual void paintEvent(QPaintEvent* event);
/** @see QWidget::resizeEvent() */
virtual void resizeEvent(QResizeEvent* event);
private slots:
void timerDone();
/**
* Increases the height of the message label so that
* the given text fits into given area.
*/
void assureVisibleText();
/**
* Returns the available width in pixels for the text.
*/
int availableTextWidth() const;
/**
* Moves the close button to the upper right corner
* of the message label.
*/
void updateCloseButtonPosition();
/**
* Closes the currently shown error message and replaces it
* by the next pending message.
*/
void closeErrorMessage();
private:
/**
* Shows the next pending error message. If no pending message
* was in the queue, false is returned.
*/
bool showPendingMessage();
/**
* Resets the message label properties. This is useful when the
* result of invoking StatusBarMessageLabel::setMessage() should
* not rely on previous states.
*/
void reset();
private:
enum State
{
Default,
Illuminate,
Illuminated,
Desaturate
};
enum
{
GeometryTimeout = 100
};
DolphinStatusBar::Type m_type;
State m_state;
int m_illumination;
int m_minTextHeight;
QTimer* m_timer;
QString m_text;
QString m_defaultText;
QList<QString> m_pendingMessages;
QPixmap m_pixmap;
QPushButton* m_closeButton;
int borderGap() const
{
return 2;
}
};
#endif
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