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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit47d455dd55be855e4cc691c32f687f723d9247ee (patch)
tree52e236aaa2576bdb3840ebede26619692fed6d7d /kghostview/thumbnailservice.h
downloadtdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz
tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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diff --git a/kghostview/thumbnailservice.h b/kghostview/thumbnailservice.h
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+#ifndef THUMBNAILSERVICE_H
+#define THUMBNAILSERVICE_H
+/**
+ * Copyright (C) 1997-2003 the KGhostView authors. See file AUTHORS.
+ *
+ * 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.
+ */
+
+#include <set>
+#include <qobject.h>
+#include <qpixmap.h>
+#include <qguardedptr.h>
+#include <stdio.h>
+
+class KPSWidget;
+class KGVMiniWidget;
+class QTimer;
+
+class ThumbnailService : public QObject {
+ Q_OBJECT
+ public:
+ ThumbnailService( KGVMiniWidget* parent, const char* name = 0 );
+ ~ThumbnailService();
+
+ public slots:
+ void delayedGetThumbnail( int page, QObject* receiver, const char* slot, bool urgent = false );
+ /**
+ * Cancels the request matching the signature below.
+ *
+ * @param page the page of the request. Use "-1" for wildcard
+ * @param receiver the receiver. Use null for wildcard
+ * @param slot Use null for wildcard
+ */
+ void cancelRequests( int page, QObject* receiver, const char* slot);
+
+ void reset();
+ /**
+ * This "suspends" the service.
+ * Unlike @ref reset(), if you call setEnabled( false ),
+ * old requests will be kept and will be serviced when
+ * you call setEnabled( true ) later.
+ */
+ void setEnabled( bool );
+
+ signals:
+ /**
+ * Don't connect to this directly
+ */
+ void relayPixmap( QPixmap );
+
+ private slots:
+ void slotDone( QPixmap );
+ void processOne();
+
+ private:
+
+ struct Request {
+ Request( int p, QObject* r, const char* s ) :
+ page( p ), receiver( r ), slot( s ), urgent( false ) { }
+ Request( int p, QObject* r, const char* s, bool u ) :
+ page( p ), receiver( r ), slot( s ), urgent( u ) { }
+
+ int page;
+ QObject* receiver;
+ const char* slot;
+ bool urgent;
+ bool operator < ( Request ) const;
+ };
+ static bool pageCmp( Request, Request );
+ std::set<Request> pending;
+ QGuardedPtr<KPSWidget> _thumbnailDrawer;
+ KGVMiniWidget* _mini;
+ QTimer* timer_;
+ bool _busy;
+ bool _enabled;
+};
+
+// vim:sw=4:sts=4:ts=8:sta:tw=78:noet
+#endif // THUMBNAILSERVICE_H
+