author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 19 Feb 2010 22:51:01 +0200 | |
branch | RCL_3 |
changeset 9 | 6b87b143d312 |
parent 0 | 4e91876724a2 |
child 13 | bcb43dc84c44 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Implementation of Zoom Maths engine |
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* |
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*/ |
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|
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|
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//includes |
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#include "glxzoomeventhandler.h" |
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#include "glxzoommathsengine.h" |
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#include "glxzoomcontrol.h" |
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|
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// Includes for Logs |
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#include <glxtracer.h> // For Tracer |
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#include <glxlog.h> // For Log |
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|
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#define BORDER_HEIGHT (iBorderWidth.iHeight*(100-((newZoomRatio-iMinZoomRatio)*100/(iMaxZoomRatio-iMinZoomRatio))))/100 |
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#define BORDER_WIDTH (iBorderWidth.iWidth*(100-((newZoomRatio-iMinZoomRatio)*100/(iMaxZoomRatio-iMinZoomRatio))))/100 |
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// LOCAL CONSTANTS AND MACROS |
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const TInt KGlxLargeImageMaximumZoomRatio = 100 ; |
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const TInt KGlxSmallImageMaximumZoomRatio = 150 ; |
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|
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const TInt KGlxMinPanFactor = 1 ; // The min multiple of pixles to pan |
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const TInt KGlxPanInertiaFactor = 10 ; |
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const TInt KGlxPanFactorUpdateMultiple = 5 ; // The number of pan operations after which panning speed is increased by an order of magnitude |
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const TInt KGlxMaxPanUpdateMultiple = 6 ; |
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const TInt KGlxOrigin = 0 ; |
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|
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const TInt KGlxMinRelativeZoomPercent = 85 ; |
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const TInt KGlxMaxRelativeZoomPercent = 115 ; |
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const TInt KGlxZoomPanInc = 10 ; // Min number of pixels panned in one keypress. This value is incremented exponentially by multiples of iPanFactor |
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// ============================ MEMBER FUNCTIONS =============================== |
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void TGlxZoomAndPanMathsEngine::Initialize(TPoint& aCenter, |
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TSize& aScreenSize, |
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TSize& aImageSize, |
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TSize& aOriginalZoomedDimensions, |
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TUint8 aInitialZoomRatio) |
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{ |
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TRACER("void TGlxZoomAndPanMathsEngine::Initialize()"); |
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iCenter = aCenter; |
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iScreenSize = aScreenSize; |
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// This will only be set at initialization/constructiron. Never afterwards. |
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// [TODO] Is there a way to make this constant. |
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iActualImageSize = aImageSize; |
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iMinZoomRatio = aInitialZoomRatio; |
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iZoomRatio = aInitialZoomRatio; |
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iMaxZoomRatio = ((aInitialZoomRatio == KGlxLargeImageMaximumZoomRatio) ? |
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KGlxSmallImageMaximumZoomRatio:KGlxLargeImageMaximumZoomRatio); |
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iPanFactor = KGlxMinPanFactor; |
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iImageVirtualSize.iHeight = aImageSize.iHeight * aInitialZoomRatio /100; |
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iImageVirtualSize.iWidth = aImageSize.iWidth * aInitialZoomRatio /100; |
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iCenter.iX = iImageVirtualSize.iWidth/2 ; |
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iCenter.iY = iImageVirtualSize.iHeight/2; |
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iBorderWidth.iWidth = (iScreenSize.iWidth - iImageVirtualSize.iWidth )/2 ; |
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iBorderWidth.iHeight = (iScreenSize.iHeight - iImageVirtualSize.iHeight)/2 ; |
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} |
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TInt TGlxZoomAndPanMathsEngine::NewCenterCoordinate(TInt aCenter, |
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TInt aOffset, |
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TUint16 aHalfScreenDimension, |
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TInt aMinimumCoordinate, |
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TInt aMaximumCoordinate, |
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TBool *aThresholdReached) |
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{ |
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TRACER("TGlxZoomAndPanMathsEngine::NewCenterCoordinate"); |
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if(aOffset) |
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{ |
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//Add the No:of Pixels that has to be panned,the No:of pixels added will be more |
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//if the pan key is held for long time,the PanFactor determines that |
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aCenter = aCenter + (aOffset*iPanFactor); |
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// For Checking the boundary condition |
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if( (aCenter - aHalfScreenDimension) < aMinimumCoordinate ) |
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{ |
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//This shows the black background on boundaries of the image and reset to the start of the image |
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aCenter = aHalfScreenDimension; |
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// Set the variable as true, if the there EXISTS a Variable at that address |
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|
100 |
if (NULL != aThresholdReached) |
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|
101 |
{ |
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|
102 |
*aThresholdReached = ETrue; |
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|
103 |
} |
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|
104 |
} |
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diff
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|
105 |
if(aCenter + aHalfScreenDimension > aMaximumCoordinate ) |
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|
106 |
{ |
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diff
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|
107 |
//This shows the black background on boundaries of the image and reset to the end of the image |
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|
108 |
aCenter = aMaximumCoordinate - aHalfScreenDimension; |
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|
109 |
if (NULL != aThresholdReached) |
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|
110 |
{ |
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|
111 |
*aThresholdReached = ETrue; |
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|
112 |
} |
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|
113 |
} |
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|
114 |
} |
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|
115 |
return aCenter; |
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|
116 |
} |
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|
117 |
|
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|
118 |
|
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119 |
void TGlxZoomAndPanMathsEngine::Pan(TPoint aOffset, |
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120 |
TPoint& aViewPortTopLeft, |
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121 |
TGlxPanIncrementType aPanIncrement, |
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122 |
TBool * aThresholdReached) |
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123 |
{ |
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124 |
TRACER("TGlxZoomAndPanMathsEngine::Pan"); |
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|
125 |
|
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126 |
GLX_LOG_INFO2("Pan: Center before PAN= [%d,%d] ", iCenter.iX, iCenter.iY ); |
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GLX_LOG_INFO2("Pan: Pan Offset = [%d,%d] ", TInt(aOffset.iX), TInt(aOffset.iY)); |
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|
128 |
|
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129 |
TPoint panOffset = aOffset; |
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130 |
TUint16 halfScreenWidth = iScreenSize.iWidth>>1; |
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|
131 |
TUint16 halfScreenHeight = iScreenSize.iHeight>>1; |
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|
132 |
|
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|
133 |
// if we are dragging or something like that the caller might want a uniform increase in panning factor. |
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|
134 |
if (EGlxPanIncrementUniform == aPanIncrement) |
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|
135 |
{ |
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|
136 |
iPanFactor = KGlxMinPanFactor ; |
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|
137 |
} |
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|
138 |
else if ( EGlxPanIncrementInertic == aPanIncrement) |
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|
139 |
{ |
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|
140 |
if (panOffset.iX > 0 ) |
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|
141 |
{ |
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|
142 |
panOffset.iX = panOffset.iX - KGlxPanInertiaFactor ; |
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|
143 |
} |
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|
144 |
else |
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|
145 |
{ |
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diff
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|
146 |
panOffset.iX = panOffset.iX + KGlxPanInertiaFactor ; |
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|
147 |
} |
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|
148 |
|
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|
149 |
if (panOffset.iY > 0 ) |
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|
150 |
{ |
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|
151 |
panOffset.iY = panOffset.iY - KGlxPanInertiaFactor ; |
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|
152 |
} |
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|
153 |
else |
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|
154 |
{ |
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|
155 |
panOffset.iY = panOffset.iY + KGlxPanInertiaFactor ; |
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|
156 |
} |
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diff
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|
157 |
} |
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parents:
diff
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|
158 |
|
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Revision: 200949
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diff
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|
159 |
GLX_LOG_INFO1("Pan: Pan Factor = %d ", iPanFactor ); |
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Revision: 200949
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diff
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|
160 |
|
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Revision: 200949
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diff
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|
161 |
// dont pan on a dimension if image is smaller on that dimension than the screen. |
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Revision: 200949
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diff
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|
162 |
if (iImageVirtualSize.iWidth > iScreenSize.iWidth) |
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Revision: 200949
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parents:
diff
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|
163 |
{ |
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Revision: 200949
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diff
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|
164 |
iCenter.iX = NewCenterCoordinate( iCenter.iX, panOffset.iX, halfScreenWidth,KGlxOrigin, |
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Revision: 200949
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|
165 |
iImageVirtualSize.iWidth, aThresholdReached) ; |
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Revision: 200949
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parents:
diff
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|
166 |
} |
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parents:
diff
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|
167 |
|
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Revision: 200949
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parents:
diff
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|
168 |
if (iImageVirtualSize.iHeight > iScreenSize.iHeight) |
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|
169 |
{ |
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Revision: 200949
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parents:
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|
170 |
TBool thresholdReached = EFalse; |
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Revision: 200949
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parents:
diff
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|
171 |
iCenter.iY = NewCenterCoordinate( iCenter.iY, panOffset.iY, halfScreenHeight,KGlxOrigin, |
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Revision: 200949
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diff
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|
172 |
iImageVirtualSize.iHeight, &thresholdReached) ; |
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Revision: 200949
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parents:
diff
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|
173 |
|
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Revision: 200949
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parents:
diff
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|
174 |
if (NULL != aThresholdReached) |
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Revision: 200949
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parents:
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|
175 |
{ |
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Revision: 200949
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diff
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|
176 |
*aThresholdReached = *aThresholdReached || thresholdReached ; // if we reach the threshold along either axis this means we have reached the threshold |
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Revision: 200949
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|
177 |
} |
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|
178 |
} |
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diff
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|
179 |
|
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diff
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|
180 |
aViewPortTopLeft.iX = iCenter.iX - halfScreenWidth; |
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Revision: 200949
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parents:
diff
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|
181 |
aViewPortTopLeft.iY = iCenter.iY - halfScreenHeight; |
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Revision: 200949
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|
182 |
|
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Revision: 200949
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parents:
diff
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|
183 |
iLastPanOffset = panOffset; |
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Revision: 200949
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parents:
diff
changeset
|
184 |
|
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Revision: 200949
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parents:
diff
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|
185 |
GLX_LOG_INFO2("Pan: Center after PAN= [%d,%d] ", |
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Revision: 200949
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|
186 |
TInt(iCenter.iX), TInt(iCenter.iY) ); |
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Revision: 200949
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parents:
diff
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|
187 |
GLX_LOG_INFO2("Pan: aViewPortTopLeft after PAN= [%d,%d] ", |
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Revision: 200949
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diff
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|
188 |
TInt(aViewPortTopLeft.iX), TInt(aViewPortTopLeft.iY) ); |
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Revision: 200949
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parents:
diff
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|
189 |
} |
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Revision: 200949
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parents:
diff
changeset
|
190 |
|
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parents:
diff
changeset
|
191 |
|
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Revision: 200949
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parents:
diff
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|
192 |
TInt TGlxZoomAndPanMathsEngine::Zoom(TZoomMode aZoomMode, |
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Revision: 200949
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parents:
diff
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|
193 |
TInt aExpectedZoomRatio, // only for slider based zoom. = 0 for key based zoom |
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Revision: 200949
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diff
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|
194 |
TPoint& aViewPortTopLeft, |
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Revision: 200949
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parents:
diff
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|
195 |
TSize& aViewPortDimension, |
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Revision: 200949
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parents:
diff
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|
196 |
TBool* aThresholdReached, |
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Revision: 200949
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parents:
diff
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|
197 |
TPoint* apZoomFocus, |
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Revision: 200949
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parents:
diff
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|
198 |
TInt aRelativeZoomFactor) |
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Revision: 200949
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parents:
diff
changeset
|
199 |
{ |
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Revision: 200949
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diff
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|
200 |
TRACER("TGlxZoomAndPanMathsEngine::Zoom "); |
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Revision: 200949
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parents:
diff
changeset
|
201 |
|
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//[TODO] Unlike the above method this method is a very very very very very small method. |
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//[TODO] Consider making this larger. [:|] |
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TUint16 halfScreenWidth = iScreenSize.iWidth>>1; |
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TUint16 halfScreenHeight = iScreenSize.iHeight>>1; |
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TPoint centerTranslationfactor(0,0); |
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207 |
|
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//[TODO] try to make sure that this variable does not get used in calculations. it always should be the center and |
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//existing and new screen and virtual image dimensions should be calculated using this one. |
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TPoint viewPortTopLeft(TPoint(iCenter).iX - halfScreenWidth, |
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TPoint(iCenter).iY - halfScreenHeight) ; |
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GLX_LOG_INFO2(" Zoom(): Center before Zoom= [%d,%d] ", iCenter.iX, iCenter.iY ); |
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GLX_LOG_INFO2(" Zoom(): viewPortTopLeft Before Zoom = [%d,%d] ", TInt(viewPortTopLeft.iX), |
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TInt(viewPortTopLeft.iY) ); |
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215 |
|
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TInt oldZoomRatio = iZoomRatio ; |
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TInt newZoomRatio = NewZoomRatio(aExpectedZoomRatio, aRelativeZoomFactor, aZoomMode, aThresholdReached); |
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218 |
|
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// we have an offcenter focus for our zoom in certain cases ( e.g pinch operation) or a double tap at an offcenter point. |
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// In such a case the zoom happens around that point. So we need to translate (move) the |
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// center in such a way that the relative position of the zoom facus does not change. |
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// centerTranslationfactor is the vector representation of that amount. |
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if (NULL != apZoomFocus) |
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224 |
{ |
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// Offcenter Zooming will be enabled later on. |
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centerTranslationfactor.iX = (((apZoomFocus->iX - halfScreenWidth) * newZoomRatio)/oldZoomRatio) + (halfScreenWidth - apZoomFocus->iX); |
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centerTranslationfactor.iY = (((apZoomFocus->iY - halfScreenHeight) * newZoomRatio)/oldZoomRatio) + (halfScreenHeight - apZoomFocus->iY); |
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228 |
} |
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229 |
|
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GLX_LOG_INFO1(" Zoom: newZoomRatio = %d. ", newZoomRatio ); |
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231 |
|
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TSize imageDimension = TSize(iActualImageSize); |
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imageDimension.iWidth = (imageDimension.iWidth * newZoomRatio)/100; |
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imageDimension.iHeight = (imageDimension.iHeight * newZoomRatio)/100; |
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235 |
|
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// Is image size bigger than screen size AND image is panned to such an extent that |
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// the an edge of the image comes within the screen rectange? If so go ahead, |
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// for everything else there is mastercard. I mean the else condition below. |
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239 |
// [TODO] The master card however needs more simplification. |
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240 |
if( |
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((iImageVirtualSize.iHeight > iScreenSize.iHeight) |
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&& (iImageVirtualSize.iWidth > iScreenSize.iWidth)) |
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&& ((iCenter.iX != iImageVirtualSize.iWidth/2) |
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|| (iCenter.iY != iImageVirtualSize.iHeight/2)) |
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245 |
) |
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246 |
{ |
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//Calculate the new Center posistion accordingly to the new zoom factor |
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// [TODO] Suggest the use of overloaded operators so that points can be operated upon by vectors. |
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// specifically in this case to enable a point to be multiplied by a dimension resulting from the ratio of two dimension |
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iCenter.iX = (iCenter.iX * imageDimension.iWidth )/iImageVirtualSize.iWidth ; |
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iCenter.iY = (iCenter.iY * imageDimension.iHeight)/iImageVirtualSize.iHeight ; |
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252 |
|
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253 |
|
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254 |
//HEIGHT Calculation |
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// TODO: Hive center corrections into an different function. |
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// If the image might have become smaller than the screen DUE to or AFTER the above calculations |
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if((imageDimension.iHeight < iScreenSize.iHeight - BORDER_HEIGHT)) |
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258 |
{ |
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iCenter.iY=(imageDimension.iHeight/2); |
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260 |
} |
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261 |
else |
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262 |
{ |
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TInt weightedBorderHeight = (iBorderWidth.iHeight*(100-((newZoomRatio-iMinZoomRatio)*100/(iMaxZoomRatio-iMinZoomRatio))))/100 ; |
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// Is Center positioned such that the top end of the image is inside the |
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// screen. |
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if( iCenter.iY < (halfScreenHeight - weightedBorderHeight )) |
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267 |
{ |
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iCenter.iY = halfScreenHeight - weightedBorderHeight ; |
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269 |
} |
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270 |
// Is Center positioned such that the Bottom end of the image is inside the |
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// screen. |
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else if((iCenter.iY + (halfScreenHeight - weightedBorderHeight ))> imageDimension.iHeight) |
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273 |
{ |
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// if so pan the image so that the edge of the image and screen coincide. |
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iCenter.iY = imageDimension.iHeight - (halfScreenHeight - weightedBorderHeight) ; |
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276 |
} |
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277 |
} |
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278 |
|
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//WIDTH Calculation |
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if((imageDimension.iWidth < iScreenSize.iWidth - BORDER_WIDTH)) |
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281 |
{ |
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iCenter.iX=(imageDimension.iWidth/2); |
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|
283 |
} |
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284 |
else |
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285 |
{ |
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TInt weightedBorderWidth = (iBorderWidth.iWidth*(100-((newZoomRatio-iMinZoomRatio)*100/(iMaxZoomRatio-iMinZoomRatio))))/100 ; |
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if( iCenter.iX < (halfScreenWidth - weightedBorderWidth )) |
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288 |
{ |
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iCenter.iX = (halfScreenWidth - weightedBorderWidth ); |
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290 |
} |
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else if((iCenter.iX + (halfScreenWidth - weightedBorderWidth ))> imageDimension.iWidth) |
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292 |
{ |
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iCenter.iX = imageDimension.iWidth - (halfScreenWidth - weightedBorderWidth ) ; |
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|
294 |
} |
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|
295 |
} |
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//Update the TopLeft corner and then re align to the center in the below code |
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viewPortTopLeft.iY = iCenter.iY - halfScreenHeight ; |
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viewPortTopLeft.iX = iCenter.iX - halfScreenWidth ; |
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parents:
diff
changeset
|
299 |
|
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parents:
diff
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|
300 |
iImageVirtualSize = imageDimension; |
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Revision: 200949
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parents:
diff
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|
301 |
} |
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parents:
diff
changeset
|
302 |
else |
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Revision: 200949
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parents:
diff
changeset
|
303 |
{ |
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Revision: 200949
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parents:
diff
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|
304 |
//Conditions to Check. |
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Revision: 200949
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parents:
diff
changeset
|
305 |
//1.Image Height is Smaller than screen Size and Width is Bigger than screen Size. |
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Revision: 200949
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parents:
diff
changeset
|
306 |
//2.Image Height is Bigger than screen Size and Width is Smaller than screen Size. |
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parents:
diff
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|
307 |
//3.Both Image Height and Width is Smaller than screen Size |
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Revision: 200949
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parents:
diff
changeset
|
308 |
//4.Image Height is Bigger than screen Size and it is panned. |
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Revision: 200949
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parents:
diff
changeset
|
309 |
//4.Image Height is Bigger than screen Size and it is not panned at all. |
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Revision: 200949
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parents:
diff
changeset
|
310 |
//5.Image Width is Bigger than screen Size and it is panned. |
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Revision: 200949
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parents:
diff
changeset
|
311 |
//6.Image Width is Bigger than screen Size and it is not panned at all. |
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Revision: 200949
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parents:
diff
changeset
|
312 |
//7. First Time Zoom operation is performed. |
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Revision: 200949
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parents:
diff
changeset
|
313 |
|
4e91876724a2
Revision: 200949
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parents:
diff
changeset
|
314 |
if( (imageDimension.iHeight <= iScreenSize.iHeight) || |
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Revision: 200949
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parents:
diff
changeset
|
315 |
( (imageDimension.iHeight > iScreenSize.iHeight) && |
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Revision: 200949
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parents:
diff
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|
316 |
(iCenter.iY == (iImageVirtualSize.iHeight/2)) ) || |
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Revision: 200949
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parents:
diff
changeset
|
317 |
( ((iCenter.iY + halfScreenHeight) > imageDimension.iHeight)&& |
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Revision: 200949
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parents:
diff
changeset
|
318 |
((iCenter.iY - halfScreenHeight) < KGlxOrigin) )) |
4e91876724a2
Revision: 200949
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parents:
diff
changeset
|
319 |
{ |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
320 |
//The Image is not panned along Y axis, so the center of the image is the center co-ordinate on this axis. |
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Revision: 200949
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parents:
diff
changeset
|
321 |
iCenter.iY=(imageDimension.iHeight/2); |
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Revision: 200949
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parents:
diff
changeset
|
322 |
} |
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Revision: 200949
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parents:
diff
changeset
|
323 |
else |
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Revision: 200949
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parents:
diff
changeset
|
324 |
{ |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
325 |
//The image is panned and shift the center posistion |
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Revision: 200949
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parents:
diff
changeset
|
326 |
//Calculate the new Center posistion accordingly to the new zoom factor |
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Revision: 200949
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parents:
diff
changeset
|
327 |
iCenter.iY = (iCenter.iY * imageDimension.iHeight)/iImageVirtualSize.iHeight; |
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Revision: 200949
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parents:
diff
changeset
|
328 |
if( (iCenter.iY + halfScreenHeight) > imageDimension.iHeight) |
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Revision: 200949
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parents:
diff
changeset
|
329 |
{ |
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Revision: 200949
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parents:
diff
changeset
|
330 |
//Stick the Image to bottom side and then re-posistion the center |
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Revision: 200949
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parents:
diff
changeset
|
331 |
iCenter.iY = imageDimension.iHeight - halfScreenHeight; |
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Revision: 200949
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parents:
diff
changeset
|
332 |
} |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
333 |
// New DIM is less than Old one. and all above conditions fail. |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
334 |
// This means that new DIM is smaller than VP DIM. So keep center 'centered'. |
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Revision: 200949
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parents:
diff
changeset
|
335 |
// DIM = dimension |
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Revision: 200949
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parents:
diff
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|
336 |
else if(iImageVirtualSize.iHeight > imageDimension.iHeight) |
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Revision: 200949
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parents:
diff
changeset
|
337 |
{ |
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Revision: 200949
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parents:
diff
changeset
|
338 |
//This is executed in the Zoom Out Case,In ZoomIn Case the Image is widened. |
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Revision: 200949
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parents:
diff
changeset
|
339 |
iCenter.iY=(imageDimension.iHeight/2); |
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Revision: 200949
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parents:
diff
changeset
|
340 |
} |
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Revision: 200949
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parents:
diff
changeset
|
341 |
} |
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Revision: 200949
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parents:
diff
changeset
|
342 |
|
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Revision: 200949
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parents:
diff
changeset
|
343 |
if((imageDimension.iWidth <= iScreenSize.iWidth) || |
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Revision: 200949
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parents:
diff
changeset
|
344 |
( (imageDimension.iWidth > iScreenSize.iWidth) && (iCenter.iX == |
4e91876724a2
Revision: 200949
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parents:
diff
changeset
|
345 |
(iImageVirtualSize.iWidth/2)) ) || ( (iCenter.iX + halfScreenWidth) > |
4e91876724a2
Revision: 200949
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parents:
diff
changeset
|
346 |
imageDimension.iWidth )&&((iCenter.iX - halfScreenWidth) < KGlxOrigin) ) |
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Revision: 200949
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parents:
diff
changeset
|
347 |
{ |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
348 |
//The Image is not panned along X axis, ,so the center of the image is the center co-ordinate. |
4e91876724a2
Revision: 200949
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parents:
diff
changeset
|
349 |
iCenter.iX=(imageDimension.iWidth/2); |
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Revision: 200949
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parents:
diff
changeset
|
350 |
} |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
351 |
else |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
352 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
353 |
//The image is panned and shift the center posistion |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
354 |
//Calculate the new Center posistion accordingly to the new zoom factor |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
355 |
iCenter.iX = (iCenter.iX * imageDimension.iWidth )/iImageVirtualSize.iWidth ; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
356 |
if( (iCenter.iX + halfScreenWidth) > imageDimension.iWidth ) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
357 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
358 |
//Stick the Image to right side and then re-posistion the center |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
359 |
iCenter.iX = imageDimension.iWidth - halfScreenWidth ; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
360 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
361 |
else if(iImageVirtualSize.iWidth >imageDimension.iWidth ) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
362 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
363 |
//The Image is panned and while zooming out ,the center has to be possistioned to center of the screen. |
4e91876724a2
Revision: 200949
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parents:
diff
changeset
|
364 |
iCenter.iX =(imageDimension.iWidth/2); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
365 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
366 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
367 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
368 |
viewPortTopLeft.iX = iCenter.iX - halfScreenWidth; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
369 |
viewPortTopLeft.iY = iCenter.iY - halfScreenHeight; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
370 |
iImageVirtualSize = imageDimension; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
371 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
372 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
373 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
374 |
// if centerTranslationfactor exists that means we have an off center zoom, then |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
375 |
// pan that way to get the new center. |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
376 |
Pan(centerTranslationfactor, viewPortTopLeft, EGlxPanIncrementUniform) ; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
377 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
378 |
aViewPortDimension = imageDimension ; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
379 |
aViewPortTopLeft = viewPortTopLeft ; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
380 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
381 |
GLX_LOG_INFO2("Zoom(): Center After Zoom = [%d,%d] ", TInt(iCenter.iX), |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
382 |
TInt(iCenter.iY) ); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
383 |
GLX_LOG_INFO2("Zoom(): aViewPortDimension After Zoom = [%d,%d] ", |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
384 |
TInt(aViewPortDimension.iWidth), TInt(aViewPortDimension.iHeight) ); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
385 |
GLX_LOG_INFO2("Zoom(): viewPortTopLeft After Zoom = [%d,%d] ", |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
386 |
TInt(viewPortTopLeft.iX), TInt(viewPortTopLeft.iY) ); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
387 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
388 |
return newZoomRatio; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
389 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
390 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
391 |
//------------------------------------------------------------------------------------- |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
392 |
// UpdatePanFactor: Calculates the Pan Factor based on time the key was pressed |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
393 |
//------------------------------------------------------------------------------------- |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
394 |
// |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
395 |
void TGlxZoomAndPanMathsEngine::UpdatePanFactor(TTime& aPanTime) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
396 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
TRACER("void TGlxZoomAndPanMathsEngine::UpdatePanFactor()"); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
398 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
iContinuousPanOperations++; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
400 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
TInt elapsedPanOperationSetCount = iContinuousPanOperations/KGlxPanFactorUpdateMultiple; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
403 |
// Double the pan factor for every multiple of KGlxPanFactorUpdateMultiple that the key was pressed till |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
// we have crossed 'KGlxMaxTimeMultiple' orders of magnitude |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
if (KGlxMaxPanUpdateMultiple > elapsedPanOperationSetCount ) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
iPanFactor = KGlxMinPanFactor << elapsedPanOperationSetCount ; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
GLX_LOG_INFO1("iPanFactor %d", iPanFactor); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
411 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
412 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
//------------------------------------------------------------------------------------- |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
// NewZoomRatio: Calculates the Zoom Ratio |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
//------------------------------------------------------------------------------------- |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
// |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
417 |
TInt TGlxZoomAndPanMathsEngine::NewZoomRatio( |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
418 |
TInt aExpectedZoomRatio, |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
419 |
TInt aRelativeZoomFactor, |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
420 |
TZoomMode aZoomMode, |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
421 |
TBool *aThresholdReached) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
422 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
423 |
TRACER("TGlxZoomAndPanMathsEngine::NewZoomRatio "); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
GLX_LOG_INFO1("NewZoomRatio: Old Zoom Ratio = %d . ",TInt(iZoomRatio) ); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
GLX_LOG_INFO1("NewZoomRatio: Expected Zoom Ratio = %d . ",aExpectedZoomRatio ); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
GLX_LOG_INFO1("NewZoomRatio: Relative Zoom Factor = %d . ",aRelativeZoomFactor ); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
427 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
// We ignore zoommode and aRelativeZoomFactor if we have a aExpectedZoomRatio. |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
429 |
// We ignore zoommode if we have a aRelativeZoomFactor. |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
430 |
if (aExpectedZoomRatio > 0) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
iZoomRatio = aExpectedZoomRatio ; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
433 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
434 |
else if (aRelativeZoomFactor > 0) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
435 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
436 |
//Pruning extreme values. Not allowing more than 15% change in zoom ratio. |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
437 |
TInt normalizedRelativeZoomFactor = aRelativeZoomFactor ; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
438 |
if (normalizedRelativeZoomFactor < KGlxMinRelativeZoomPercent) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
439 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
440 |
normalizedRelativeZoomFactor = KGlxMinRelativeZoomPercent; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
441 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
442 |
else if (normalizedRelativeZoomFactor > KGlxMaxRelativeZoomPercent) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
443 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
444 |
normalizedRelativeZoomFactor = KGlxMaxRelativeZoomPercent; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
445 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
446 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
447 |
iZoomRatio = (iZoomRatio * normalizedRelativeZoomFactor)/100 ; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
448 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
449 |
else |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
450 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
451 |
if(EZoomIn == aZoomMode) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
452 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
453 |
iZoomRatio += KGlxZoomPanInc; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
454 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
455 |
else |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
456 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
457 |
iZoomRatio -= KGlxZoomPanInc; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
458 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
459 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
460 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
461 |
// if iZoomRatio crosses max or minimum limits, then peg them to those limits. |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
462 |
if (iZoomRatio >= iMaxZoomRatio) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
463 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
464 |
iZoomRatio = iMaxZoomRatio; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
465 |
if (NULL != aThresholdReached) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
466 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
467 |
GLX_LOG_INFO1("NewZoomRatio: Max Threshold Reached iMaxZoomRatio = %d .",iMaxZoomRatio); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
468 |
*aThresholdReached = ETrue; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
469 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
470 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
471 |
else if( iZoomRatio <= iMinZoomRatio ) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
472 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
iZoomRatio = iMinZoomRatio; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
if (NULL != aThresholdReached) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
476 |
GLX_LOG_INFO1("NewZoomRatio: Min Threshold Reached iInitialZoomRatio = %d .", iMinZoomRatio ); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
477 |
*aThresholdReached = ETrue; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
478 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
479 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
480 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
481 |
GLX_LOG_INFO1("NewZoomRatio: New Zoom Ratio = %d. ",TInt(iZoomRatio) ); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
482 |
return iZoomRatio; |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
483 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
484 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
485 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
486 |
//------------------------------------------------------------------------------------- |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
487 |
// OrientationChanged: |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
//------------------------------------------------------------------------------------- |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
// |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
void TGlxZoomAndPanMathsEngine::OrientationChanged(const TRect& aNewScreenRect) |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
491 |
{ |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
492 |
TRACER("void TGlxZoomAndPanMathsEngine::OrientationChanged()"); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
493 |
iScreenSize.iWidth = aNewScreenRect.Width(); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
494 |
iScreenSize.iHeight = aNewScreenRect.Height(); |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
495 |
} |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
496 |
|
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
497 |
//------------------------------------------------------------------------------------- |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
498 |
// ImageVirtualSize: retieves the virtual size of the image. |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
499 |
//------------------------------------------------------------------------------------- |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
500 |
// |
4e91876724a2
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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TSize TGlxZoomAndPanMathsEngine::ImageVirtualSize() |
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{ |
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TRACER("TGlxZoomAndPanMathsEngine::ImageVirtualSize()"); |
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return iImageVirtualSize; |
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} |
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|
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|
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//------------------------------------------------------------------------------------- |
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// ScreenSize: retrieves the screen size . |
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//------------------------------------------------------------------------------------- |
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// |
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TSize TGlxZoomAndPanMathsEngine::ScreenSize() |
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{ |
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TRACER("TGlxZoomAndPanMathsEngine::ScreenSize()"); |
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return iScreenSize; |
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} |
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|
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//------------------------------------------------------------------------------------- |
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// ImageVirtualSize: retrieves the screen size . |
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//------------------------------------------------------------------------------------- |
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// |
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void TGlxZoomAndPanMathsEngine::SetupPanOperation() |
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{ |
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TRACER("TGlxZoomAndPanMathsEngine::SetupPanOperation()"); |
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iContinuousPanOperations = 0 ; |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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} |
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|
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TPoint TGlxZoomAndPanMathsEngine::LastPanOffset() |
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{ |
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TRACER("TGlxZoomAndPanMathsEngine::LastPanOffset()"); |
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return iLastPanOffset; |
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} |