1 files changed, 138 insertions, 0 deletions
diff --git a/libkscreensaver/kscreensaver.h b/libkscreensaver/kscreensaver.h
new file mode 100644
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+++ b/libkscreensaver/kscreensaver.h
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+/* This file is part of the KDE libraries
+
+    Copyright (c) 2001  Martin R. Jones <mjones@kde.org>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef KSCREENSAVER_H
+#define KSCREENSAVER_H
+
+#include <qwidget.h>
+
+#include <kdelibs_export.h>
+
+class QTimer;
+class KScreenSaverPrivate;
+class KBlankEffectPrivate;
+
+/**
+* Provides a QWidget for a screensaver to draw into.
+*
+* You should derive from this widget and implement your screensaver's
+* functionality.  To use libkss, provide the following constants and
+* functions:
+*
+*   extern "C"
+*   {
+*       const char *kss_applicationName = "yourappname";
+*       const char *kss_description = I18N_NOOP( "Your screensaver" );
+*       const char *kss_version = "1.0";
+*
+*       KScreenSaver *kss_create( WId d )
+*       {
+*           // return your KScreenSaver derived screensaver
+*       }
+*
+*       QDialog *kss_setup()
+*       {
+*           // return your modal setup dialog
+*       }
+*   }
+*
+* @short Provides a QWidget for a screensaver to draw into.
+* @author Martin R. Jones <mjones@kde.org>
+*/
+class KDE_EXPORT KScreenSaver : public QWidget
+{
+	Q_OBJECT
+public:
+    /**
+     * @param id The winId() of the widget to draw the screensaver into.
+     */
+	KScreenSaver( WId id=0 );
+	~KScreenSaver();
+
+protected:
+    /**
+     * You cannot create a new widget with this widget as parent, since this
+     * widget may not be owned by your application.  In order to create
+     * widgets with a KScreenSaver as parent, create the widget with no parent,
+     * call embed(), and then show() the widget.
+     *
+     * @param widget The widget to embed in the screensaver widget.
+     */
+    void embed( QWidget *widget );
+
+    bool eventFilter( QObject *o, QEvent * );
+
+private:
+    KScreenSaverPrivate *d;
+};
+
+
+/**
+*
+* Blanks a widget using various effects.
+*
+* @short Blanks a widget using various effects.
+* @author Martin R. Jones <mjones@kde.org>
+*/
+class KBlankEffect : public QObject
+{
+	Q_OBJECT
+public:
+	KBlankEffect( QObject *parent=0 );
+	~KBlankEffect();
+
+    enum Effect { Random=-1, Blank=0, SweepRight, SweepDown, Blocks,
+                  MaximumEffects };
+
+    /**
+     * Blank a widget using the specified effect.
+     * Some blanking effects take some time, so you should connect to
+     * doneBlank() to know when the blanking is complete.
+     *
+     * @param w The widget to blank.
+     * @param effect The type of effect to use.
+     */
+    void blank( QWidget *w, Effect effect=Random );
+
+    typedef void (KBlankEffect::*BlankEffect)();
+
+signals:
+    /**
+     * emitted when a blanking effect has completed.
+     */
+    void doneBlank();
+
+protected slots:
+    void timeout();
+
+protected:
+    void finished();
+
+    void blankNormal();
+    void blankSweepRight();
+    void blankSweepDown();
+    void blankBlocks();
+
+protected:
+    static BlankEffect effects[];
+    KBlankEffectPrivate *d;
+};
+#endif
+