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50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; c-brace-offset: 0; -*-
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// SimplePageSize.cpp
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//
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// Part of KVIEWSHELL - A framework for multipage text/gfx viewers
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//
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// (C) 2002-2005 Stefan Kebekus
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// Distributed under the GPL
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#include <config.h>
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#include "simplePageSize.h"
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#include "kvs_debug.h"
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#include <QPaintDevice>
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double SimplePageSize::zoomForHeight(quint32 height, const QPaintDevice& pd) const
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{
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if (!isValid()) {
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kError(kvs::shell) << "SimplePageSize::zoomForHeight() called when paper height was invalid";
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return 0.1;
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}
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return double(height) / (pd.logicalDpiY() * pageHeight.getLength_in_inch());
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}
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double SimplePageSize::zoomForWidth(quint32 width, const QPaintDevice& pd) const
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{
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if (!isValid()) {
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kError(kvs::shell) << "SimplePageSize::zoomForWidth() called when paper width was invalid";
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return 0.1;
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}
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return double(width) / (pd.logicalDpiX() * pageWidth.getLength_in_inch());
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}
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double SimplePageSize::zoomToFitInto(const SimplePageSize &target) const
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{
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if (!isValid() || isSmall() || !target.isValid()) {
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kWarning(kvs::shell) << "SimplePageSize::zoomToFitInto(...) with unsuitable source of target" ;
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return 1.0;
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}
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double z1 = target.width() / pageWidth;
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double z2 = target.height() / pageHeight;
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return qMin(z1,z2);
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}
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