kozoomhandler.cc
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00020 #include "kozoomhandler.h"
00021 #include <kdebug.h>
00022 #include <qpaintdevice.h>
00023 #include <koUnit.h>
00024 #include <koGlobal.h>
00025
00026
00027
00028
00029 int KoTextZoomHandler::m_layoutUnitFactor = 20;
00030
00031 KoZoomHandler::KoZoomHandler()
00032 {
00033
00034 setZoomAndResolution( 100, KoGlobal::dpiX(), KoGlobal::dpiY() );
00035 }
00036
00037 void KoZoomHandler::setZoomAndResolution( int zoom, int dpiX, int dpiY )
00038 {
00039
00040 m_resolutionX = POINT_TO_INCH( static_cast<double>(dpiX) );
00041 m_resolutionY = POINT_TO_INCH( static_cast<double>(dpiY) );
00042 setZoom( zoom );
00043
00044
00045
00046
00047
00048 }
00049
00050 void KoZoomHandler::setResolution( double resolutionX, double resolutionY )
00051 {
00052 m_zoom = 100;
00053 m_resolutionX = resolutionX;
00054 m_resolutionY = resolutionY;
00055 m_zoomedResolutionX = resolutionX;
00056 m_zoomedResolutionY = resolutionY;
00057 }
00058
00059 void KoZoomHandler::setZoomedResolution( double zoomedResolutionX, double zoomedResolutionY )
00060 {
00061
00062
00063
00064 m_zoomedResolutionX = zoomedResolutionX;
00065 m_zoomedResolutionY = zoomedResolutionY;
00066 }
00067
00068 void KoZoomHandler::setZoom( int zoom )
00069 {
00070 m_zoom = zoom;
00071 if( m_zoom == 100 ) {
00072 m_zoomedResolutionX = m_resolutionX;
00073 m_zoomedResolutionY = m_resolutionY;
00074 } else {
00075 m_zoomedResolutionX = static_cast<double>(m_zoom) * m_resolutionX / 100.0;
00076 m_zoomedResolutionY = static_cast<double>(m_zoom) * m_resolutionY / 100.0;
00077 }
00078 }
00079
00080 #if 0
00081 int KoZoomHandler::fontSizeToLayoutUnit( double ptSizeFloat, bool forPrint ) const
00082 {
00083 return ptToLayoutUnit( ptSizeFloat / ( m_zoomedResolutionY *
00084 ( forPrint ? 1.0 : (72.0 / KoGlobal::dpiY()) ) ) );
00085 }
00086 #endif
00087
00088 double KoZoomHandler::layoutUnitToFontSize( int luSize, bool ) const
00089 {
00090
00091 return layoutUnitPtToPt( luSize ) * m_zoomedResolutionY
00092 #ifdef Q_WS_X11
00093 / POINT_TO_INCH(QPaintDevice::x11AppDpiY())
00094 #endif
00095 ;
00096 }
00097
00098 int KoZoomHandler::layoutUnitToPixelX( int x, int w ) const
00099 {
00100
00101
00102
00103 return layoutUnitToPixelY( x + w - 1 ) - layoutUnitToPixelY( x ) + 1;
00104 }
00105
00106 int KoZoomHandler::layoutUnitToPixelY( int y, int h ) const
00107 {
00108
00109
00110
00111 return layoutUnitToPixelY( y + h - 1 ) - layoutUnitToPixelY( y ) + 1;
00112 }
00113
00114 int KoZoomHandler::layoutUnitToPixelX( int lupix ) const
00115 {
00116 return int( static_cast<double>( lupix * m_zoomedResolutionX )
00117 / ( static_cast<double>( m_layoutUnitFactor ) * m_resolutionX ) );
00118 }
00119
00120 int KoZoomHandler::layoutUnitToPixelY( int lupix ) const
00121 {
00122
00123 return int( static_cast<double>( lupix * m_zoomedResolutionY )
00124 / ( static_cast<double>( m_layoutUnitFactor ) * m_resolutionY ) );
00125 }
00126
00127 int KoZoomHandler::pixelToLayoutUnitX( int x ) const
00128 {
00129 return qRound( static_cast<double>( x * m_layoutUnitFactor * m_resolutionX )
00130 / m_zoomedResolutionX );
00131 }
00132
00133 int KoZoomHandler::pixelToLayoutUnitY( int y ) const
00134 {
00135 return qRound( static_cast<double>( y * m_layoutUnitFactor * m_resolutionY )
00136 / m_zoomedResolutionY );
00137 }
00138
This file is part of the documentation for lib Library Version 1.4.2.