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0001 /* This file is part of the KDE project
0002  * Copyright (C) 2006-2007 Thomas Zander <zander@kde.org>
0003  *
0004  * This library is free software; you can redistribute it and/or
0005  * modify it under the terms of the GNU Library General Public
0006  * License as published by the Free Software Foundation; either
0007  * version 2 of the License, or (at your option) any later version.
0008  *
0009  * This library is distributed in the hope that it will be useful,
0010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
0011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0012  * Library General Public License for more details.
0013  *
0014  * You should have received a copy of the GNU Library General Public License
0015  * along with this library; see the file COPYING.LIB.  If not, write to
0016  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0017  * Boston, MA 02110-1301, USA.
0018  */
0019 
0020 #ifndef KOPOSTSCRIPTPAINTDEVICE_H
0021 #define KOPOSTSCRIPTPAINTDEVICE_H
0022 
0023 #include <QPaintDevice>
0024 
0025 #include "flake_export.h"
0026 
0027 /**
0028  * Helper class to disable any screen conversion as that is done in flake.
0029  *
0030  * Flake has the property that all content is always defined in pts. And only when it
0031  * is displayed is it converted to the proper zoom and resolution.
0032  *
0033  * This is in contradiction to the normal behavior of Qt fonts which automatically
0034  * applies DPI on creation.  So this is where this special paint device comes in.
0035  *
0036  * Usage;
0037  *
0038  * For all QFont() and QFontMetrics constructors add an instance of this PaintDevice
0039  * to the constructor if those fonts are to be used for painting in a KoShape inheriting
0040  * class.
0041  *
0042  * Note: never try to actually paint on this paint device, since that will noisily crash.
0043  */
0044 class FLAKE_EXPORT KoPostscriptPaintDevice : public QPaintDevice
0045 {
0046 public:
0047     /// constructor
0048     KoPostscriptPaintDevice();
0049     /// reimplemented from QPaintDevice
0050     QPaintEngine *paintEngine() const override;
0051     /// reimplemented from QPaintDevice
0052     int metric(QPaintDevice::PaintDeviceMetric metric) const override;
0053 };
0054 
0055 #endif