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comparison DemoCube/src/DemoCubeAppView.cpp @ 1:0a2b5a968ce7

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Modifications that turn this Nokia-supplied DemoCube demo into a web-browser mockup that uses optical flow for panning operations.
author Atul Varma <varmaa@toolness.com>
date Tue, 12 Feb 2008 17:32:01 -0600
parents 43361e733c66
children f546bb5370c7
comparison
equal deleted inserted replaced
0:43361e733c66 1:0a2b5a968ce7
21 #include "ncvImage.h" 21 #include "ncvImage.h"
22 #include "ncvCamus.h" 22 #include "ncvCamus.h"
23 #include "ncvOpticalFlow.h" 23 #include "ncvOpticalFlow.h"
24 #include "ncvEgoMovement.h" 24 #include "ncvEgoMovement.h"
25 #include "DemoCube.h" 25 #include "DemoCube.h"
26 #include "ImageLoader.h"
26 27
27 #define PADDING_WIDTH 40 28 #define PADDING_WIDTH 40
28 #define PADDING_HEIGHT 30 29 #define PADDING_HEIGHT 30
30
31 _LIT( KPicture, "firefox.png" );
29 32
30 // ============================ MEMBER FUNCTIONS =============================== 33 // ============================ MEMBER FUNCTIONS ===============================
31 34
32 // ----------------------------------------------------------------------------- 35 // -----------------------------------------------------------------------------
33 // CDemoCubeAppView::NewL() 36 // CDemoCubeAppView::NewL()
65 for(TInt i = 0; i < 5; i++) 68 for(TInt i = 0; i < 5; i++)
66 { 69 {
67 TPoint tmp(0, 0); 70 TPoint tmp(0, 0);
68 iCubePoints->AppendL(tmp); 71 iCubePoints->AppendL(tmp);
69 } 72 }
73
70 // Create a window for this application view 74 // Create a window for this application view
71 CreateWindowL(); 75 CreateWindowL();
72 76
73 // Set the windows size 77 // Set the windows size
74 SetRect( aRect ); 78 SetRect( aRect );
75 79
76 // Activate the window, which makes it ready to be drawn 80 // Activate the window, which makes it ready to be drawn
77 ActivateL(); 81 ActivateL();
78 } 82 }
83
84 void CDemoCubeAppView::StartImgLoader()
85 {
86 // was 50,50
87 TSize iSize(493, 305);
88 TInt color;
89 TInt gray;
90 TDisplayMode displayMode = CEikonEnv::Static()->WsSession().GetDefModeMaxNumColors( color, gray );
91
92 iPicture = new (ELeave) CFbsBitmap;
93 if (iPicture)
94 iPicture->Create(iSize, displayMode); //EColor16MA
95 iLoader = CImageLoader::NewL( 'c' );
96 iLoader->LoadImage( KPicture, iPicture );
97 }
79 98
80 // ----------------------------------------------------------------------------- 99 // -----------------------------------------------------------------------------
81 // CDemoCubeAppView::CDemoCubeAppView() 100 // CDemoCubeAppView::CDemoCubeAppView()
82 // C++ default constructor can NOT contain any code, that might leave. 101 // C++ default constructor can NOT contain any code, that might leave.
83 // ----------------------------------------------------------------------------- 102 // -----------------------------------------------------------------------------
87 iCamera(NULL), 106 iCamera(NULL),
88 iCamusImage(NULL), 107 iCamusImage(NULL),
89 iBitmapSize(25, 18), 108 iBitmapSize(25, 18),
90 iCamus(NULL), 109 iCamus(NULL),
91 iOpticalFlow(NULL), 110 iOpticalFlow(NULL),
92 iCube(NULL) 111 iCube(NULL),
112 iLoader(NULL),
113 iPicture(NULL)
93 { 114 {
94 } 115 }
95 116
96 void CDemoCubeAppView::Reset() 117 void CDemoCubeAppView::Reset()
97 { 118 {
136 if(iCubePoints) 157 if(iCubePoints)
137 { 158 {
138 delete iCubePoints; 159 delete iCubePoints;
139 iCubePoints = NULL; 160 iCubePoints = NULL;
140 } 161 }
162 if(iLoader)
163 {
164 delete iLoader;
165 iLoader = NULL;
166 }
167 if(iPicture)
168 {
169 delete iPicture;
170 iPicture = NULL;
171 }
141 } 172 }
142 173
143 // ----------------------------------------------------------------------------- 174 // -----------------------------------------------------------------------------
144 // CDemoCubeAppView::Draw() 175 // CDemoCubeAppView::Draw()
145 // Draws the display. 176 // Draws the display.
146 // ----------------------------------------------------------------------------- 177 // -----------------------------------------------------------------------------
147 // 178 //
148 void CDemoCubeAppView::Draw(CFbsBitmap& aBitmap, CArrayFixFlat<TPoint>* aCube) const 179 void CDemoCubeAppView::Draw(CFbsBitmap& aBitmap, CArrayFixFlat<TPoint>* aCube)
149 { 180 {
150 CWindowGc& gc = SystemGc(); 181 CWindowGc& gc = SystemGc();
151 gc.Activate(Window()); 182 gc.Activate(Window());
152 gc.Clear(); 183 gc.Clear();
153 gc.BitBlt(TPoint(PADDING_WIDTH / 2, PADDING_HEIGHT / 2), &aBitmap); 184 //gc.BitBlt(TPoint(PADDING_WIDTH / 2, PADDING_HEIGHT / 2), &aBitmap);
154 gc.SetPenColor(TRgb(0xff, 0, 0)); 185
155 gc.DrawPolyLine(aCube); 186
187 //gc.BitBlt(TPoint(PADDING_WIDTH / 2, PADDING_HEIGHT / 2), iPicture);
188 gc.BitBlt(TPoint( (TInt)iMove.iY.Real(), (TInt)iMove.iX.Real()), iPicture);
189 //gc.SetPenColor(TRgb(0xff, 0, 0));
190 //gc.DrawPolyLine(aCube);
156 gc.Deactivate(); 191 gc.Deactivate();
157 iCoeEnv->WsSession().Flush(); 192 iCoeEnv->WsSession().Flush();
158 } 193 }
159 194
160 void CDemoCubeAppView::CameraReady() 195 void CDemoCubeAppView::CameraReady()
173 } 208 }
174 209
175 iCamus->GetOpticalFlow(*iOpticalFlow, *iCamusImage, CAMUS_SETCAMUSOPTS(CCamus::EMedium, CCamus::EMedium, 3)); 210 iCamus->GetOpticalFlow(*iOpticalFlow, *iCamusImage, CAMUS_SETCAMUSOPTS(CCamus::EMedium, CCamus::EMedium, 3));
176 CEgoMovement mean = iOpticalFlow->Mean(); 211 CEgoMovement mean = iOpticalFlow->Mean();
177 iMove.iX -= mean.iX * 6.3; 212 iMove.iX -= mean.iX * 6.3;
178 iMove.iY += mean.iY * 6.3; 213 iMove.iY -= mean.iY * 6.3;
179 iAngle += iOpticalFlow->Rotation().Real() * 10.5; 214 iAngle += iOpticalFlow->Rotation().Real() * 10.5;
180 215
181 // 216 //
182 iCubeWidth += (TInt)(iOpticalFlow->Depth().Real() * 5); 217 iCubeWidth += (TInt)(iOpticalFlow->Depth().Real() * 5);
183 iCubeWidth = Max(2, iCubeWidth); 218 iCubeWidth = Max(2, iCubeWidth);