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69 lines
2.6 KiB
C
69 lines
2.6 KiB
C
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/*============================================================================
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*
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* Screensaver preview area helper class
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*
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* Copyright (C) 2004 Georg Drenkhahn, Georg.Drenkhahn@gmx.net
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License or (at your option) version 3 or
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* any later version accepted by the membership of KDE e.V. (or its successor
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* approved by the membership of KDE e.V.), which shall act as a proxy defined
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* in Section 14 of version 3 of the license.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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*===========================================================================*/
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#ifndef SSPREVIEWAREA_H
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#define SSPREVIEWAREA_H
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#include <qwidget.h>
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/** @brief Reimplementation of QWidget emitting a signal if resized.
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*
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* This class is equalt to QWidget except for the fact that the signal resized()
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* is emitted if the widget gets resized. By this signaling mechanism it is
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* possible to resize the embedded GL area object within the screen saver setup
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* dialog.
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*
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* In the constructor of the dialog widget (KPendulumSetup::KPendulumSetup(),
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* KRotationSetup::KRotationSetup()) the signal SsPreviewArea::resized() is
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* connected with a slot of the screensaver class
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* (KPendulumSaver::resizeGlArea(), KRotationSaver::resizeGlArea()). This slot
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* function calls the reimplemented QGLWidget::resizeGL() method of the GL
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* widgets (PendulumGLWidget::resizeGL(), RotationGLWidget::resizeGL()) which
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* really resizes the GL scenery. */
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class SsPreviewArea : public QWidget
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{
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Q_OBJECT
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public:
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/** @brief Constructor for SsPreviewArea
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* @param parent Pointer tp parent widget, forwarded to the QWidget
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* constructor
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*
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* The constructor just calls QWidget::QWidget() with the given arguments.
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*/
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SsPreviewArea(QWidget* parent = NULL);
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protected:
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/** @brief Called if widget gets resized.
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* @param e Pointer to the corresponding QResizeEvent object containing the
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* resize information
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*
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* Reimplemented event handler from QWidget. Only the signal resized() is
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* emitted. */
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virtual void resizeEvent(QResizeEvent* e);
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signals:
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/** @brief Signal which is emitted in the resizeEvent() method.
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* @param e Pointer to the corresponding QResizeEvent object */
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void resized(QResizeEvent* e);
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};
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#endif
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