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1 /* |
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2 * Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). |
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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 "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 * |
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14 * Description: Implementation of CHuiBrush. Brushes augment visuals with |
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15 * graphical effects. |
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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 |
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21 #include "uiacceltk/HuiBrush.h" |
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22 #include "uiacceltk/HuiGc.h" |
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23 #include "uiacceltk/HuiVisual.h" |
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24 #include "uiacceltk/HuiStatic.h" |
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25 #include "uiacceltk/HuiProbe.h" |
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26 #include "uiacceltk/HuiUtil.h" |
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27 |
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28 |
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29 EXPORT_C CHuiBrush::CHuiBrush() |
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30 : iOpacity(1.0f), iEnabled(ETrue), iChanged(EFalse) |
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31 { |
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32 HUI_PROBE_ASSOCIATE_WITH_CURRENT_SESSION |
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33 HUI_PROBE_REPORT_CONSTRUCTED |
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34 } |
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35 |
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36 |
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37 EXPORT_C CHuiBrush::~CHuiBrush() |
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38 { |
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39 iGuideVisual = NULL; |
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40 |
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41 HUI_PROBE_REPORT_DESTRUCTED |
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42 } |
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43 |
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44 |
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45 EXPORT_C void CHuiBrush::ExpandVisualRect(TRect& /*aRect*/) const |
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46 { |
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47 // The brush does not expand the rectangle by default. |
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48 } |
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49 |
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50 |
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51 EXPORT_C void CHuiBrush::SetChanged() |
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52 { |
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53 iChanged = ETrue; |
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54 } |
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55 |
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56 |
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57 EXPORT_C TBool CHuiBrush::Changed() const |
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58 { |
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59 if ( iChanged ) |
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60 { |
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61 return ETrue; |
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62 } |
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63 |
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64 return iOpacity.Changed(); |
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65 } |
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66 |
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67 EXPORT_C void CHuiBrush::ClearChanged() |
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68 { |
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69 iChanged = EFalse; |
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70 iOpacity.ClearChanged(); |
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71 } |
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72 |
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73 |
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74 EXPORT_C void CHuiBrush::SetClipToVisual(TBool aClipToVisual) |
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75 { |
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76 iClipToVisual = aClipToVisual; |
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77 } |
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78 |
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79 |
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80 EXPORT_C TBool CHuiBrush::ClipToVisual() const |
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81 { |
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82 return iClipToVisual; |
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83 } |
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84 |
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85 |
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86 EXPORT_C void CHuiBrush::SetLayer(THuiBrushLayer aLayer) |
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87 { |
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88 iLayer = aLayer; |
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89 } |
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90 |
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91 |
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92 EXPORT_C THuiBrushLayer CHuiBrush::Layer() const |
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93 { |
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94 return iLayer; |
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95 } |
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96 |
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97 |
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98 EXPORT_C void CHuiBrush::BeginDraw(CHuiGc& aGc, const MHuiBrushGuide& aGuide) const |
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99 { |
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100 if(iClipToVisual) |
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101 { |
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102 // Visual content clipping is affected by transformation. |
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103 aGc.PushClip(); |
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104 aGc.Clip(aGuide.BrushRect()); |
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105 } |
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106 } |
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107 |
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108 |
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109 EXPORT_C void CHuiBrush::Draw(CHuiGc& /*aGc*/, const MHuiBrushGuide& /*aGuide*/) const |
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110 { |
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111 } |
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112 |
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113 |
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114 EXPORT_C void CHuiBrush::EndDraw(CHuiGc& aGc, const MHuiBrushGuide& /*aGuide*/) const |
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115 { |
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116 if(iClipToVisual) |
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117 { |
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118 // Visual content clipping is affected by transformation. |
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119 aGc.PopClip(); |
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120 } |
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121 |
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122 iChanged = EFalse; |
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123 } |
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124 |
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125 |
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126 HUI_SESSION_OBJECT_IMPL_EXPORT(CHuiBrush, ETypeBrush) |
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127 |
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128 EXPORT_C void CHuiBrush::BrushExtension(const TUid& /*aExtensionUid*/, TAny** /*aExtensionParameters*/) |
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129 { |
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130 } |
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131 |
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132 void CHuiBrush::ActivateBrushGuide(const CHuiVisual* aNewGuide) const |
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133 { |
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134 iGuideVisual = const_cast<CHuiVisual*>(aNewGuide); |
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135 } |
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136 |
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137 CHuiVisual* CHuiBrush::BrushGuide() const |
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138 { |
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139 return iGuideVisual; |
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140 } |
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141 |