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1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * |
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17 */ |
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18 |
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19 |
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20 #include <fbs.h> |
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21 #include <e32math.h> |
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22 #include "CFilterRotate.h" |
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23 |
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24 |
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25 EXPORT_C TInt CFilterRotate::Create() |
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26 { |
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27 CFilterRotate* ptr = NULL; |
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28 TRAPD( error, ptr = NewL(); ); |
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29 if( error != KErrNone ) |
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30 { |
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31 ptr = NULL; |
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32 } |
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33 return (TInt)((MImageFilter*)ptr); |
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34 } |
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35 |
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36 |
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37 |
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38 CFilterRotate* CFilterRotate::NewL() |
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39 { |
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40 CFilterRotate* self = new( ELeave )CFilterRotate(); |
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41 CleanupStack::PushL( self ); |
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42 self->ConstructL(); |
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43 CleanupStack::Pop( self ); |
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44 return self; |
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45 } |
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46 |
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47 |
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48 |
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49 CFilterRotate::~CFilterRotate() |
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50 { |
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51 } |
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52 |
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53 |
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54 |
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55 CFilterRotate::CFilterRotate() |
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56 { |
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57 |
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58 } |
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59 |
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60 |
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61 |
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62 void CFilterRotate::ConstructL() |
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63 { |
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64 |
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65 } |
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66 |
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67 |
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68 |
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69 TRect CFilterRotate::Rect() |
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70 { |
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71 if ( (ERotation90 == iRotation) || (ERotation270 == iRotation)) |
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72 { |
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73 TRect r = iChild->Rect(); |
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74 // swap x and y coordinates |
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75 r.iTl.iX ^= r.iTl.iY; |
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76 r.iTl.iY ^= r.iTl.iX; |
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77 r.iTl.iX ^= r.iTl.iY; |
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78 |
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79 r.iBr.iX ^= r.iBr.iY; |
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80 r.iBr.iY ^= r.iBr.iX; |
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81 r.iBr.iX ^= r.iBr.iY; |
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82 |
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83 return r; |
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84 } |
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85 else |
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86 { |
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87 return iChild->Rect(); |
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88 } |
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89 } |
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90 |
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91 TReal CFilterRotate::Scale() |
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92 { |
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93 return iChild->Scale(); |
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94 } |
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95 |
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96 TSize CFilterRotate::ViewPortSize() |
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97 { |
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98 TSize size = iChild->ViewPortSize(); |
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99 |
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100 if ( (ERotation90 == iRotation) || (ERotation270 == iRotation)) |
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101 { |
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102 size.iWidth ^= size.iHeight; |
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103 size.iHeight ^= size.iWidth; |
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104 size.iWidth ^= size.iHeight; |
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105 return size; |
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106 } |
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107 else |
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108 { |
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109 return size; |
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110 } |
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111 } |
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112 |
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113 TBlock * CFilterRotate::GetBlockL ( const TRect & aRect ) |
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114 { |
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115 |
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116 |
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117 if (iRotation == ERotation90) |
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118 { |
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119 |
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120 TRect cr = iChild->Rect(); |
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121 |
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122 // Load block |
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123 TRect rr; |
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124 rr.iTl.iX = aRect.iTl.iY; |
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125 rr.iTl.iY = cr.iTl.iY + cr.iBr.iY - aRect.iBr.iX; |
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126 rr.iBr.iX = aRect.iBr.iY; |
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127 rr.iBr.iY = cr.iTl.iY + cr.iBr.iY - aRect.iTl.iX; |
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128 TBlock * pS = iChild->GetBlockL(rr); |
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129 if (!pS) |
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130 { |
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131 return NULL; |
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132 } |
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133 |
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134 // Create new block |
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135 rr.iTl.iX = cr.iTl.iY + cr.iBr.iY - pS->iRect.iBr.iY; |
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136 rr.iTl.iY = pS->iRect.iTl.iX; |
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137 rr.iBr.iX = cr.iTl.iY + cr.iBr.iY - pS->iRect.iTl.iY; |
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138 rr.iBr.iY = pS->iRect.iBr.iX; |
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139 TBlock * pD = new (ELeave) TBlock (rr); |
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140 |
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141 // Rotate data to new block |
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142 TUint32 * ps = pS->iData; |
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143 TUint32 * pddos = pD->iData + pD->iWidth - 1; |
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144 for (TInt i = 0; i < pS->iHeight; ++i) |
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145 { |
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146 TUint32 * pdd = pddos; |
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147 pddos--; |
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148 for (TInt j = 0; j < pS->iWidth; ++j) |
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149 { |
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150 *pdd = *ps++; |
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151 pdd += pD->iWidth; |
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152 } |
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153 } |
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154 delete pS; |
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155 pS = NULL; |
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156 |
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157 return pD; |
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158 |
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159 } |
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160 else if (iRotation == ERotation180) |
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161 { |
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162 TRect cr = iChild->Rect(); |
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163 TRect rr; |
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164 rr.iTl.iX = cr.iTl.iX + cr.iBr.iX - aRect.iBr.iX; |
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165 rr.iTl.iY = cr.iTl.iY + cr.iBr.iY - aRect.iBr.iY; |
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166 rr.iBr.iX = cr.iTl.iX + cr.iBr.iX - aRect.iTl.iX; |
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167 rr.iBr.iY = cr.iTl.iY + cr.iBr.iY - aRect.iTl.iY; |
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168 |
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169 // Load block |
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170 TBlock * pS = iChild->GetBlockL(rr); |
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171 |
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172 if (!pS) |
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173 { |
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174 return NULL; |
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175 } |
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176 |
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177 // Create new block |
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178 rr.iTl.iX = cr.iTl.iX + cr.iBr.iX - pS->iRect.iBr.iX; |
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179 rr.iTl.iY = cr.iTl.iY + cr.iBr.iY - pS->iRect.iBr.iY; |
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180 rr.iBr.iX = cr.iTl.iX + cr.iBr.iX - pS->iRect.iTl.iX; |
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181 rr.iBr.iY = cr.iTl.iY + cr.iBr.iY - pS->iRect.iTl.iY; |
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182 TBlock * pD = new (ELeave) TBlock (rr); |
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183 |
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184 // Rotate data to new block |
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185 TUint32 * ps = pS->iData; |
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186 TUint32 * pd = pD->iData + pD->iDataLength - 1; |
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187 for (TInt i = 0; i < pS->iDataLength; ++i) |
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188 { |
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189 *pd-- = *ps++; |
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190 } |
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191 delete pS; |
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192 pS = NULL; |
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193 |
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194 return pD; |
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195 } |
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196 else if (iRotation == ERotation270) |
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197 { |
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198 TRect cr = iChild->Rect(); |
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199 |
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200 // Load block |
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201 TRect rr; |
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202 rr.iTl.iX = cr.iTl.iX + cr.iBr.iX - aRect.iBr.iY; |
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203 rr.iTl.iY = aRect.iTl.iX; |
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204 rr.iBr.iX = cr.iTl.iX + cr.iBr.iX - aRect.iTl.iY; |
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205 rr.iBr.iY = aRect.iBr.iX; |
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206 TBlock * pS = iChild->GetBlockL(rr); |
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207 if (!pS) |
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208 { |
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209 return NULL; |
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210 } |
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211 |
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212 // Create new block |
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213 rr.iTl.iX = pS->iRect.iTl.iY; |
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214 rr.iTl.iY = cr.iTl.iX + cr.iBr.iX - pS->iRect.iBr.iX; |
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215 rr.iBr.iX = pS->iRect.iBr.iY; |
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216 rr.iBr.iY = cr.iTl.iX + cr.iBr.iX - pS->iRect.iTl.iX; |
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217 TBlock * pD = new (ELeave) TBlock (rr); |
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218 |
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219 // Rotate data to new block |
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220 TUint32 * ps = pS->iData; |
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221 TUint32 * pddos = pD->iData + (pD->iHeight - 1) * pD->iWidth; |
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222 for (TInt i = 0; i < pS->iHeight; ++i) |
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223 { |
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224 TUint32 * pdd = pddos; |
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225 pddos++; |
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226 for (TInt j = 0; j < pS->iWidth; ++j) |
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227 { |
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228 *pdd = *ps++; |
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229 pdd -= pD->iWidth; |
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230 } |
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231 } |
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232 delete pS; |
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233 pS = NULL; |
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234 |
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235 return pD; |
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236 } |
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237 else |
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238 { |
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239 return iChild->GetBlockL (aRect); |
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240 } |
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241 } |
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242 |
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243 |
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244 void CFilterRotate::SetParent( MImageFilter* aParent ) |
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245 { |
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246 iParent = aParent; |
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247 } |
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248 |
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249 void CFilterRotate::SetChild( MImageFilter* aChild ) |
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250 { |
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251 iChild = aChild; |
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252 } |
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253 |
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254 |
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255 |
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256 TInt CFilterRotate::CmdL( const TDesC16& aCmd ) |
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257 { |
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258 |
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259 TLex lex (aCmd); |
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260 |
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261 // Get rotation parameter |
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262 while ( ! lex.Eos() ) |
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263 { |
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264 TPtrC token = lex.NextToken(); |
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265 if ( token.Compare( _L("angle") ) == 0) |
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266 { |
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267 TInt angle = 0; |
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268 lex.Inc(); |
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269 lex.Val (angle); |
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270 if (angle == 0) |
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271 { |
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272 iRotation = ERotation0; |
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273 } |
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274 else if (angle == 90 || angle == -270) |
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275 { |
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276 iRotation = ERotation90; |
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277 } |
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278 else if (angle == 180 || angle == -180) |
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279 { |
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280 iRotation = ERotation180; |
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281 } |
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282 else if (angle == 270 || angle == -90) |
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283 { |
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284 iRotation = ERotation270; |
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285 } |
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286 else |
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287 { |
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288 iRotation = ERotationMin; |
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289 } |
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290 } |
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291 else if ( token.Compare( _L("rotateccw") ) == 0) |
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292 { |
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293 iRotation = ERotation270; |
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294 } |
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295 else if ( token.Compare( _L("rotatecw") ) == 0) |
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296 { |
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297 iRotation = ERotation90; |
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298 } |
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299 else if ( token.Compare( _L("getangle") ) == 0) |
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300 { |
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301 TInt angle = 0; |
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302 if (iRotation == ERotation90) |
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303 { |
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304 angle = 90; |
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305 } |
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306 else if (iRotation == ERotation180) |
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307 { |
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308 angle = 180; |
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309 } |
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310 else if (iRotation == ERotation270) |
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311 { |
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312 angle = 270; |
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313 } |
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314 return angle; |
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315 } |
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316 } |
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317 return 0; |
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318 } |
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319 |
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320 const char* CFilterRotate::Type() |
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321 { |
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322 return "rotate"; |
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323 } |
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324 |
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325 |
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326 #if !defined(EKA2) |
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327 GLDEF_C TInt E32Dll( TDllReason ) |
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328 { |
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329 return KErrNone; |
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330 } |
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331 #endif |