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1 /* |
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2 * Copyright (c) 1997-1999 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: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <eiksbfrm.h> |
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20 #include <eikpanic.h> |
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21 #include <eikbtgpc.h> |
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22 #include <eikcba.h> |
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23 #include <eikenv.h> |
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24 #include <eikappui.h> |
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25 |
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26 #include <aknenv.h> |
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27 #include <aknappui.h> |
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28 #include <AknLayout.lag> |
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29 #include <AknUtils.h> |
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30 |
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31 #include "EIKSBEXT.H" |
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32 |
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33 // const TInt KCbaScrollBarWidth=9; |
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34 |
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35 // |
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36 // TEikScrollBarFrameLayout |
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37 // |
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38 |
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39 EXPORT_C TEikScrollBarFrameLayout::TEikScrollBarFrameLayout() |
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40 // |
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41 // default constructor |
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42 // |
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43 { |
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44 iInclusiveMargin.iTop = 0; |
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45 iInclusiveMargin.iBottom = 0; |
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46 iInclusiveMargin.iLeft = 0; |
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47 iInclusiveMargin.iRight = 0; |
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48 |
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49 iClientMargin.iTop = 0; |
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50 iClientMargin.iBottom = 0; |
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51 iClientMargin.iLeft = 0; |
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52 iClientMargin.iRight = 0; |
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53 |
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54 iClientAreaGranularity = TSize(0,0); |
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55 |
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56 iTilingMode = EClientRectConstant; |
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57 } |
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58 |
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59 EXPORT_C void TEikScrollBarFrameLayout::SetInclusiveMargin(TInt aMargin) |
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60 // |
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61 // sets all inclusive margins to aMargin |
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62 // |
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63 { |
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64 iInclusiveMargin.iTop = aMargin; |
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65 iInclusiveMargin.iBottom = aMargin; |
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66 iInclusiveMargin.iLeft = aMargin; |
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67 iInclusiveMargin.iRight = aMargin; |
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68 } |
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69 |
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70 EXPORT_C void TEikScrollBarFrameLayout::SetClientMargin(TInt aMargin) |
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71 // |
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72 // sets all client margins to aMargin |
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73 // |
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74 { |
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75 iClientMargin.iTop = aMargin; |
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76 iClientMargin.iBottom = aMargin; |
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77 iClientMargin.iLeft = aMargin; |
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78 iClientMargin.iRight = aMargin; |
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79 } |
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80 |
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81 |
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82 CEikScrollBarFrameExtension::CEikScrollBarFrameExtension() |
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83 { |
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84 |
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85 } |
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86 |
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87 CEikScrollBarFrameExtension::~CEikScrollBarFrameExtension() |
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88 { |
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89 |
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90 } |
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91 |
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92 // |
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93 // CEikScrollBarFrame |
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94 // |
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95 |
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96 enum TEikScrollBarFramePanic |
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97 { |
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98 ENoScrollBarFrame =0x01, |
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99 EFailedToRemoveExternalScrollBar, |
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100 EUnexpectedExternalScrollBarDisconnectRequest |
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101 }; |
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102 |
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103 GLDEF_C void SbfPanic(TEikScrollBarFramePanic aPanic) |
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104 { |
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105 _LIT(KPanicCategory, "UIKON - Scrollbar Frame"); |
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106 User::Panic(KPanicCategory, aPanic); |
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107 } |
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108 |
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109 // const TInt KTypeOfScrollBarMask=0x0300; |
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110 // const TInt KSideOfScrollBarMask=0x0c00; |
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111 |
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112 |
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113 enum // private flags |
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114 { |
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115 EDisplayHScrollBar =0x01, |
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116 EDisplayVScrollBar =0x02, |
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117 EDoNotAdjustHorizontalModel =0x04, |
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118 EDoNotAdjustVerticalModel =0x08, |
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119 EPreAllocScrollBars =0x10 |
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120 }; |
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121 |
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122 EXPORT_C CEikScrollBarFrame::~CEikScrollBarFrame() |
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123 { |
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124 DeleteScrollBars(); |
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125 delete iExtension; |
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126 } |
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127 |
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128 EXPORT_C CEikScrollBarFrame::CEikScrollBarFrame(CCoeControl* aParentWindow, MEikScrollBarObserver* aObserver, TBool /*aPreAlloc*/) |
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129 { |
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130 InitExtension(aParentWindow,aObserver); |
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131 GetScrollBars(EFalse); |
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132 } |
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133 |
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134 CEikScrollBarFrame::CEikScrollBarFrame(CCoeControl* aParentWindow, MEikScrollBarObserver* aObserver, TBool /*aPreAlloc*/, TBool aDoubleSpan) |
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135 { |
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136 InitExtension(aParentWindow,aObserver); |
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137 GetScrollBars(aDoubleSpan); |
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138 } |
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139 |
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140 void CEikScrollBarFrame::InitExtension(CCoeControl* aParentWindow, MEikScrollBarObserver* aObserver) |
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141 { |
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142 iExtension = new CEikScrollBarFrameExtension(); |
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143 if (iExtension) |
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144 { |
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145 iExtension->iParentWindow = aParentWindow; |
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146 iExtension->iH.iModel = TAknDoubleSpanScrollBarModel(); |
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147 iExtension->iH.iBar = NULL; |
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148 iExtension->iH.iExternalScrollBarAttached = EFalse; |
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149 iExtension->iH.iVisibility = EOff; |
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150 if(AknLayoutUtils::PenEnabled()) |
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151 { |
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152 iExtension->iScrollBarObserver = aObserver; |
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153 } |
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154 } |
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155 } |
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156 |
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157 void CEikScrollBarFrame::DisconnectExternalScrollBar(CEikScrollBar* aScrollBar) |
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158 { |
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159 if (iV.iExternalScrollBarAttached && iV.iBar == aScrollBar) |
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160 { |
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161 iV.iExternalScrollBarAttached = EFalse; |
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162 iV.iBar = NULL; |
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163 } |
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164 |
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165 if (iExtension && iExtension->iH.iExternalScrollBarAttached && iExtension->iH.iBar == aScrollBar) |
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166 { |
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167 iExtension->iH.iExternalScrollBarAttached = EFalse; |
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168 iExtension->iH.iBar = NULL; |
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169 } |
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170 } |
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171 |
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172 void CEikScrollBarFrame::GetScrollBars(TBool aDoubleSpan) |
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173 { |
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174 if (!iV.iBar) |
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175 { |
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176 CEikCba* cba=GetCurrentCba(); |
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177 if (cba) |
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178 { |
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179 // If aDoubleSpan is true, we will optimize and do not create arrow heads at all. |
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180 // There will come CreateDoubleSpanScrollBarsL call, and arrow heads are not needed. |
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181 if ( !(aDoubleSpan && (AknLayoutUtils::DefaultScrollBarType(iAvkonAppUi) == CEikScrollBarFrame::EDoubleSpan)) ) |
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182 { |
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183 TRAP_IGNORE(cba->CreateArrowHeadScrollBarL()); |
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184 } |
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185 // returns the vertical scroll bar from the top scroll bar host |
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186 iV.iBar=cba->VScrollBarAsControl(); |
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187 iV.iExternalScrollBarAttached=ETrue; |
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188 TRAPD(err, iV.iBar->AddExternalFrameL(this)); |
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189 if (err) |
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190 { |
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191 iV.iExternalScrollBarAttached = EFalse; |
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192 iV.iBar = NULL; |
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193 } |
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194 } |
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195 } |
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196 } |
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197 |
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198 EXPORT_C void CEikScrollBarFrame::DrawScrollBarsNow() const |
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199 // Force a redraw of any scrollbars |
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200 { |
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201 if (iV.iBar && iExtension && iExtension->iParentWindow->IsVisible()) |
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202 iV.iBar->DrawNow(); |
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203 |
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204 if (iExtension && iExtension->iH.iBar && iExtension->iParentWindow->IsVisible()) |
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205 iExtension->iH.iBar->DrawNow(); |
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206 |
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207 } |
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208 |
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209 void CEikScrollBarFrame::DrawScrollBarsDeferred() const |
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210 { |
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211 if (iV.iBar && iExtension && iExtension->iParentWindow->IsVisible()) |
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212 { |
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213 iV.iBar->DrawDeferred(); |
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214 } |
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215 |
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216 if (iExtension && iExtension->iH.iBar && iExtension->iParentWindow->IsVisible()) |
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217 { |
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218 iExtension->iH.iBar->DrawDeferred(); |
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219 } |
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220 } |
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221 |
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222 const TInt KLongEnoughToCauseComponentsToBeCreated=200; |
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223 |
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224 |
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225 EXPORT_C void CEikScrollBarFrame::SetScrollBarVisibilityL(TScrollBarVisibility aHVisibility, TScrollBarVisibility aVVisibility) |
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226 // Set the visibility state for both scrollbars to be used when tiling |
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227 { |
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228 __ASSERT_DEBUG(this, SbfPanic(ENoScrollBarFrame)); |
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229 |
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230 // Vertical scrollbar |
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231 iV.iVisibility=aVVisibility; |
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232 if (iV.iBar && TypeOfVScrollBar() == EDoubleSpan && aVVisibility==EOff) |
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233 { |
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234 iScrollBarFrameFlags&=(~EDisplayVScrollBar); |
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235 MakeSBarVisible(iV, EFalse); |
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236 } |
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237 |
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238 // Horizontal scrollbar |
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239 if (iExtension) |
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240 { |
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241 iExtension->iH.iVisibility=aHVisibility; |
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242 if (iExtension->iH.iBar && TypeOfHScrollBar() == EDoubleSpan && aHVisibility==EOff) |
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243 { |
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244 iScrollBarFrameFlags&=(~EDisplayHScrollBar); |
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245 MakeSBarVisible(iExtension->iH, EFalse); |
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246 } |
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247 } |
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248 } |
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249 |
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250 EXPORT_C TBool CEikScrollBarFrame::Tile(TEikScrollBarModel* aVModel) |
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251 // |
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252 // The main function which provides the necessary scrollbars according to visibilities and size considerations |
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253 // returns ETrue if the "output rect" was changed |
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254 // |
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255 { |
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256 GetScrollBars(EFalse); |
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257 CalcTheoreticalScrollBarVisibility(aVModel); |
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258 if (iV.iVisibility!=EOff) |
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259 iV.iModel = *aVModel; |
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260 MakeSBarVisible(iV, iScrollBarFrameFlags&EDisplayVScrollBar); |
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261 return EFalse; |
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262 } |
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263 |
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264 EXPORT_C TBool CEikScrollBarFrame::TileL(TEikScrollBarModel* aHModel, TEikScrollBarModel* aVModel, |
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265 TRect& aClientRect, TRect& aInclusiveRect, const TEikScrollBarFrameLayout& aLayout) |
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266 { |
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267 TRect tempRect(aClientRect); |
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268 if(aClientRect.Height() < 0 ) |
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269 { |
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270 aClientRect.iTl.iY = aClientRect.iBr.iY; |
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271 aClientRect.iBr.iY = tempRect.iTl.iY; |
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272 } |
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273 if(aClientRect.Width() < 0 ) |
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274 { |
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275 aClientRect.iTl.iX = aClientRect.iBr.iX; |
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276 aClientRect.iBr.iX = tempRect.iTl.iX; |
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277 } |
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278 tempRect = aInclusiveRect; |
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279 if(aInclusiveRect.Height() < 0 ) |
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280 { |
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281 aInclusiveRect.iTl.iY = aInclusiveRect.iBr.iY; |
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282 aInclusiveRect.iBr.iY = tempRect.iTl.iY; |
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283 } |
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284 if(aInclusiveRect.Width() < 0 ) |
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285 { |
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286 aInclusiveRect.iTl.iX = aInclusiveRect.iBr.iX; |
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287 aInclusiveRect.iBr.iX = tempRect.iTl.iX; |
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288 } |
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289 if (iExtension && iExtension->iH.iVisibility!=EOff) |
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290 { |
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291 if(aClientRect.Height() < ScrollBarBreadth( CEikScrollBar::EHorizontal) ) |
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292 { |
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293 aClientRect.SetHeight( ScrollBarBreadth(CEikScrollBar::EHorizontal) ); |
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294 } |
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295 if(aInclusiveRect.Height() < ScrollBarBreadth( CEikScrollBar::EHorizontal) ) |
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296 { |
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297 aInclusiveRect.SetHeight( ScrollBarBreadth(CEikScrollBar::EHorizontal) ); |
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298 } |
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299 } |
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300 TBool sizeChanged = EFalse; |
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301 |
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302 GetScrollBars(EFalse); |
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303 CalcTheoreticalScrollBarVisibility(aVModel,aHModel); |
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304 |
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305 if (iV.iVisibility!=EOff) |
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306 iV.iModel = *aVModel; |
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307 |
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308 MakeSBarVisible(iV, iScrollBarFrameFlags&EDisplayVScrollBar); |
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309 |
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310 if (iExtension && iExtension->iH.iBar) |
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311 { |
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312 if (iExtension->iH.iVisibility!=EOff) |
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313 iExtension->iH.iModel = *aHModel; |
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314 |
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315 MakeSBarVisible(iExtension->iH, iScrollBarFrameFlags&EDisplayHScrollBar); |
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316 } |
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317 |
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318 // Vertical Double span scollbar |
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319 if (iV.iBar && TypeOfVScrollBar() == EDoubleSpan && iV.iExternalScrollBarAttached==EFalse ) |
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320 { |
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321 TInt scrollBarWidth = ScrollBarBreadth(CEikScrollBar::EVertical); // is 0 if SB not visible ! |
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322 TInt horizontalScrollBarWidth = 0; |
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323 if (iExtension && iExtension->iH.iVisibility!=EOff) |
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324 { |
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325 horizontalScrollBarWidth = ScrollBarBreadth(CEikScrollBar::EHorizontal); |
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326 } |
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327 CAknDoubleSpanScrollBar* scrollbar = static_cast <CAknDoubleSpanScrollBar*> (iV.iBar); |
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328 if (scrollbar->FixedLayoutRect().Size() == TSize(0,0)) |
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329 { |
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330 TMargins checkedClientMargin(aLayout.iClientMargin); |
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331 TMargins checkedInclusiveMargin(aLayout.iInclusiveMargin); |
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332 checkedClientMargin.iTop = Max(0,checkedClientMargin.iTop); |
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333 checkedClientMargin.iBottom = Max(0,checkedClientMargin.iBottom); |
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334 checkedClientMargin.iRight = Max(0,checkedClientMargin.iRight); |
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335 checkedClientMargin.iLeft = Max(0,checkedClientMargin.iLeft); |
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336 |
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337 checkedInclusiveMargin.iTop = Max(0,checkedInclusiveMargin.iTop); |
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338 checkedInclusiveMargin.iBottom = Max(0,checkedInclusiveMargin.iBottom); |
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339 checkedInclusiveMargin.iRight = Max(0,checkedInclusiveMargin.iRight); |
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340 checkedInclusiveMargin.iLeft = Max(0,checkedInclusiveMargin.iLeft); |
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341 |
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342 TInt width = 0; |
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343 TInt xPos = 0; |
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344 TInt yPos = 0; |
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345 TInt height = 0; |
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346 |
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347 if (!AknLayoutUtils::LayoutMirrored()) |
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348 { |
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349 if (aLayout.iTilingMode == TEikScrollBarFrameLayout::EInclusiveRectConstant) |
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350 { |
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351 width = scrollBarWidth + checkedInclusiveMargin.iRight; |
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352 xPos = aInclusiveRect.iBr.iX - width; |
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353 yPos = aInclusiveRect.iTl.iY + checkedInclusiveMargin.iTop; |
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354 height = aInclusiveRect.Size().iHeight - (checkedInclusiveMargin.iTop + checkedInclusiveMargin.iBottom) - horizontalScrollBarWidth; |
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355 |
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356 if ((aClientRect.iBr.iX + width > aInclusiveRect.iBr.iX) || (aInclusiveRect.iBr.iX - width > aClientRect.iBr.iX)) |
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357 { |
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358 aClientRect.iBr.iX = aInclusiveRect.iBr.iX - width; |
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359 sizeChanged = ETrue; |
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360 } |
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361 } |
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362 else |
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363 { |
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364 width = scrollBarWidth + checkedClientMargin.iRight; |
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365 xPos = aClientRect.iBr.iX + checkedClientMargin.iRight; |
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366 yPos = aInclusiveRect.iTl.iY + checkedInclusiveMargin.iTop; |
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367 height = aInclusiveRect.Size().iHeight - (checkedInclusiveMargin.iTop + checkedInclusiveMargin.iBottom) - horizontalScrollBarWidth; |
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368 |
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369 if ((aClientRect.iBr.iX + width + checkedInclusiveMargin.iRight > aInclusiveRect.iBr.iX) || |
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370 (aInclusiveRect.iBr.iX - (width + checkedInclusiveMargin.iRight) > aClientRect.iBr.iX)) |
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371 { |
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372 aInclusiveRect.iBr.iX = aClientRect.iBr.iX + width + checkedInclusiveMargin.iRight; |
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373 sizeChanged = ETrue; |
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374 } |
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375 } |
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376 } |
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377 else |
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378 { |
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379 // Mirrored Left & Right |
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380 if (aLayout.iTilingMode == TEikScrollBarFrameLayout::EInclusiveRectConstant) |
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381 { |
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382 width = scrollBarWidth + checkedInclusiveMargin.iRight; |
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383 xPos = aInclusiveRect.iTl.iX + checkedInclusiveMargin.iRight; |
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384 yPos = aInclusiveRect.iTl.iY + checkedInclusiveMargin.iTop; |
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385 height = aInclusiveRect.Size().iHeight - (checkedInclusiveMargin.iTop + checkedInclusiveMargin.iBottom) - horizontalScrollBarWidth; |
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386 |
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387 if ((aClientRect.iTl.iX - width < aInclusiveRect.iTl.iX) || (aInclusiveRect.iTl.iX + width > aClientRect.iTl.iX)) |
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388 { |
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389 aClientRect.iTl.iX = aInclusiveRect.iTl.iX + width; |
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390 xPos = aInclusiveRect.iTl.iX + checkedInclusiveMargin.iRight; |
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391 sizeChanged = ETrue; |
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392 } |
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393 } |
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394 else |
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395 { |
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396 width = scrollBarWidth + checkedClientMargin.iRight; |
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397 xPos = aClientRect.iTl.iX - checkedClientMargin.iRight; |
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398 yPos = aInclusiveRect.iTl.iY + checkedInclusiveMargin.iTop; |
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399 height = aInclusiveRect.Size().iHeight - (checkedInclusiveMargin.iTop + checkedInclusiveMargin.iBottom) - horizontalScrollBarWidth; |
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400 |
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401 if ((aClientRect.iTl.iX - width - checkedInclusiveMargin.iRight > aInclusiveRect.iTl.iX) || |
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402 (aInclusiveRect.iTl.iX - (width + checkedInclusiveMargin.iRight) < aClientRect.iTl.iX)) |
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403 { |
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404 aInclusiveRect.iTl.iX = aClientRect.iTl.iX - width - checkedInclusiveMargin.iRight; |
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405 xPos = aInclusiveRect.iTl.iX + checkedInclusiveMargin.iRight; |
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406 sizeChanged = ETrue; |
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407 } |
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408 } |
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409 |
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410 } |
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411 |
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412 TRect newRect = TRect(TPoint(xPos, yPos), TSize(width, height )); |
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413 if (iV.iBar->IsVisible() && (newRect != TRect(iV.iBar->Position(), iV.iBar->Size()))) |
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414 { |
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415 iV.iBar->SetRect(newRect); |
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416 } |
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417 |
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418 } |
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419 } |
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420 |
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421 // Horizontal Double span scollbar |
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422 if (iExtension && |
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423 iExtension->iH.iBar && |
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424 TypeOfHScrollBar() == EDoubleSpan && |
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425 iExtension->iH.iExternalScrollBarAttached==EFalse ) |
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426 { |
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427 TInt scrollBarWidth = ScrollBarBreadth(CEikScrollBar::EHorizontal); // is 0 if SB not visible ! |
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428 TInt verticalScrollBarWidth = 0; |
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429 if (iV.iVisibility!=EOff) |
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430 { |
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431 verticalScrollBarWidth = ScrollBarBreadth(CEikScrollBar::EVertical); |
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432 } |
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433 CAknDoubleSpanScrollBar* scrollbar = static_cast <CAknDoubleSpanScrollBar*> (iExtension->iH.iBar); |
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434 if (scrollbar->FixedLayoutRect().Size() == TSize(0,0)) |
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435 { |
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436 TMargins checkedClientMargin(aLayout.iClientMargin); |
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437 TMargins checkedInclusiveMargin(aLayout.iInclusiveMargin); |
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438 checkedClientMargin.iTop = Max(0,checkedClientMargin.iTop); |
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439 checkedClientMargin.iBottom = Max(0,checkedClientMargin.iBottom); |
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440 checkedClientMargin.iRight = Max(0,checkedClientMargin.iRight); |
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441 checkedClientMargin.iLeft = Max(0,checkedClientMargin.iLeft); |
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442 |
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443 checkedInclusiveMargin.iTop = Max(0,checkedInclusiveMargin.iTop); |
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444 checkedInclusiveMargin.iBottom = Max(0,checkedInclusiveMargin.iBottom); |
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445 checkedInclusiveMargin.iRight = Max(0,checkedInclusiveMargin.iRight); |
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446 checkedInclusiveMargin.iLeft = Max(0,checkedInclusiveMargin.iLeft); |
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447 |
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448 TInt width = 0; |
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449 TInt xPos = 0; |
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450 TInt yPos = 0; |
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451 TInt height = 0; |
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452 |
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453 if (aLayout.iTilingMode == TEikScrollBarFrameLayout::EInclusiveRectConstant) |
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454 { |
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455 width = scrollBarWidth + checkedInclusiveMargin.iBottom; // width as vertical direction (height). |
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456 xPos = aInclusiveRect.iTl.iX + checkedInclusiveMargin.iLeft; |
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457 if (AknLayoutUtils::LayoutMirrored()) |
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458 { |
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459 xPos += verticalScrollBarWidth; |
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460 } |
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461 yPos = aInclusiveRect.iBr.iY - checkedInclusiveMargin.iBottom - width; |
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462 height = aInclusiveRect.Size().iWidth - (checkedInclusiveMargin.iLeft + checkedInclusiveMargin.iRight) - verticalScrollBarWidth; // height as horizontal (width). |
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463 |
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464 if ((aClientRect.iBr.iY + width > aInclusiveRect.iBr.iY) || (aInclusiveRect.iBr.iY - width > aClientRect.iBr.iY)) |
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465 { |
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466 aClientRect.iBr.iY = aInclusiveRect.iBr.iY - width; |
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467 sizeChanged = ETrue; |
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468 } |
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469 } |
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470 else |
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471 { |
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472 width = scrollBarWidth + checkedClientMargin.iBottom; // width as vertical direction (height). |
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473 xPos = aInclusiveRect.iTl.iX + checkedInclusiveMargin.iLeft; |
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474 if (AknLayoutUtils::LayoutMirrored()) |
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475 { |
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476 xPos += verticalScrollBarWidth; |
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477 } |
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478 yPos = aClientRect.iBr.iY + checkedClientMargin.iBottom; |
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479 height = aInclusiveRect.Size().iWidth - (checkedInclusiveMargin.iLeft + checkedInclusiveMargin.iRight) - verticalScrollBarWidth; // height as horizontal (width). |
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480 |
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481 if ((aClientRect.iBr.iY + width + checkedClientMargin.iBottom > aInclusiveRect.iBr.iY) || |
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482 (aInclusiveRect.iBr.iY - (width + checkedInclusiveMargin.iBottom) > aClientRect.iBr.iY)) |
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483 { |
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484 aInclusiveRect.iBr.iY = aClientRect.iBr.iY + width + checkedInclusiveMargin.iBottom; |
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485 sizeChanged = ETrue; |
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486 } |
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487 } |
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488 |
|
489 TRect newRect = TRect(TPoint(xPos, yPos), TSize(height, width )); // height & width swapped |
|
490 if (iExtension->iH.iBar->IsVisible() && (newRect != TRect(iV.iBar->Position(), iV.iBar->Size()))) |
|
491 { |
|
492 iExtension->iH.iBar->SetRect(newRect); |
|
493 } |
|
494 } |
|
495 |
|
496 } |
|
497 |
|
498 return sizeChanged; |
|
499 } |
|
500 |
|
501 EXPORT_C void CEikScrollBarFrame::MoveThumbsBy(TInt aDeltaX, TInt aDeltaY) |
|
502 // |
|
503 // Used to update any scrollbar(s) after an external scroll |
|
504 // values in terms of the model, presumed not to have changed spans. |
|
505 // |
|
506 { |
|
507 // Vertical scrollbar |
|
508 if (aDeltaY && iV.iBar) |
|
509 { |
|
510 if (TypeOfVScrollBar() == TScrollBarType(EArrowHead)) |
|
511 { |
|
512 iV.iModel.iThumbPosition += aDeltaY; |
|
513 } |
|
514 else |
|
515 { |
|
516 // EDoubleSpan has different model. |
|
517 if (iV.iModel.ScrollBarModelType() == TEikScrollBarModel::EAknDoubleSpanScrollBarModel) |
|
518 { |
|
519 TAknDoubleSpanScrollBarModel* model = static_cast <TAknDoubleSpanScrollBarModel*> (&iV.iModel); |
|
520 // Note that for a large scroll span and small delta this may not actually change focusposition |
|
521 // because of the 15 bit accuracy of TAknDoubleSpanScrollBarModel values. |
|
522 model->SetFocusPosition(model->FocusPosition() + aDeltaY); |
|
523 } |
|
524 else |
|
525 { |
|
526 // Error. User of the API is perhaps assigning values directly to TEikScrollBarModel |
|
527 // member variables which is not allowed with EAknDoubleSpanScrollBarModel. |
|
528 // #ifdef _DEBUG |
|
529 // RDebug::Print(_L("CEikScrollBarFrame: Please, use TAknDoubleSpanScrollBarModel instead of TEikScrollBarModel")); |
|
530 // #endif |
|
531 // In most cases we can work with the TEikScrollBarModel model. |
|
532 iV.iModel.iThumbPosition += aDeltaY; |
|
533 } |
|
534 } |
|
535 ApplyModel(iV); |
|
536 } |
|
537 |
|
538 |
|
539 // Horizontal scrollbar |
|
540 if (aDeltaX && iExtension && iExtension->iH.iBar && TypeOfHScrollBar() == TScrollBarType(EDoubleSpan)) |
|
541 { |
|
542 if (iExtension->iH.iModel.ScrollBarModelType() == TEikScrollBarModel::EAknDoubleSpanScrollBarModel) |
|
543 { |
|
544 TAknDoubleSpanScrollBarModel* model = static_cast <TAknDoubleSpanScrollBarModel*> (&(iExtension->iH.iModel)); |
|
545 // Note that for a large scroll span and small delta this may not actually change focusposition |
|
546 // because of the 15 bit accuracy of TAknDoubleSpanScrollBarModel values. |
|
547 model->SetFocusPosition(model->FocusPosition() + aDeltaX); |
|
548 } |
|
549 else |
|
550 { |
|
551 // Error. User of the API is perhaps assigning values directly to TEikScrollBarModel |
|
552 // member variables which is not allowed with EAknDoubleSpanScrollBarModel. |
|
553 // #ifdef _DEBUG |
|
554 // RDebug::Print(_L("CEikScrollBarFrame: Please, use TAknDoubleSpanScrollBarModel instead of TEikScrollBarModel")); |
|
555 // #endif |
|
556 // In most cases we can work with the TEikScrollBarModel model. |
|
557 iExtension->iH.iModel.iThumbPosition += aDeltaX; |
|
558 } |
|
559 ApplyModel(iExtension->iH); |
|
560 } |
|
561 |
|
562 } |
|
563 |
|
564 EXPORT_C void CEikScrollBarFrame::MoveVertThumbTo(TInt aVertThumbPos) |
|
565 { |
|
566 if (iV.iBar) |
|
567 { |
|
568 if (TypeOfVScrollBar() == TScrollBarType(EArrowHead)) |
|
569 { |
|
570 iV.iModel.iThumbPosition = aVertThumbPos; |
|
571 } |
|
572 else |
|
573 { |
|
574 // EDoubleSpan has different model. |
|
575 if (iV.iModel.ScrollBarModelType() == TEikScrollBarModel::EAknDoubleSpanScrollBarModel) |
|
576 { |
|
577 TAknDoubleSpanScrollBarModel* model = static_cast <TAknDoubleSpanScrollBarModel*> (&iV.iModel); |
|
578 model->SetFocusPosition(aVertThumbPos); |
|
579 } |
|
580 else |
|
581 { |
|
582 // Error. User of the API is perhaps assigning values directly to TEikScrollBarModel |
|
583 // member variables which is not allowed with EAknDoubleSpanScrollBarModel. |
|
584 // #ifdef _DEBUG |
|
585 // RDebug::Print(_L("CEikScrollBarFrame: Please, use TAknDoubleSpanScrollBarModel instead of TEikScrollBarModel")); |
|
586 // #endif |
|
587 // In most cases we can work with the TEikScrollBarModel model. |
|
588 iV.iModel.iThumbPosition = aVertThumbPos; |
|
589 } |
|
590 } |
|
591 ApplyModel(iV); |
|
592 } |
|
593 } |
|
594 |
|
595 EXPORT_C void CEikScrollBarFrame::SetVFocusPosToThumbPos(TInt aFocusPosition) |
|
596 { |
|
597 MoveVertThumbTo(aFocusPosition); |
|
598 } |
|
599 |
|
600 EXPORT_C TInt CEikScrollBarFrame::ScrollBarBreadth(CEikScrollBar::TOrientation aOrientation) const |
|
601 // |
|
602 // return the appropriate scrollbar's breadth or zero if none exists |
|
603 // |
|
604 { |
|
605 CAknScrollBar* sBar=(CAknScrollBar*)GetScrollBarHandle(aOrientation); |
|
606 if (!sBar) |
|
607 return 0; |
|
608 return sBar->ScrollBarBreadth(); |
|
609 } |
|
610 |
|
611 EXPORT_C TBool CEikScrollBarFrame::ScrollBarExists(CEikScrollBar::TOrientation aOrientation) const |
|
612 // |
|
613 // returns ETrue if the specified scrollbar exists |
|
614 // |
|
615 { |
|
616 if (GetScrollBarHandle(aOrientation)) |
|
617 return ETrue; |
|
618 return EFalse; |
|
619 } |
|
620 |
|
621 EXPORT_C TInt CEikScrollBarFrame::CountComponentControls() const |
|
622 { |
|
623 TInt numberOfComponents = 0; |
|
624 |
|
625 if (iV.iBar) |
|
626 numberOfComponents++; |
|
627 |
|
628 if (iExtension && iExtension->iH.iBar) |
|
629 numberOfComponents++; |
|
630 |
|
631 return numberOfComponents; |
|
632 } |
|
633 |
|
634 EXPORT_C CCoeControl* CEikScrollBarFrame::ComponentControl(TInt aIndex) const |
|
635 { |
|
636 if (aIndex == 0) |
|
637 { |
|
638 if (iV.iBar) |
|
639 return iV.iBar; |
|
640 else |
|
641 { |
|
642 if (iExtension && iExtension->iH.iBar) |
|
643 return iExtension->iH.iBar; |
|
644 } |
|
645 } |
|
646 |
|
647 if (aIndex == 1) |
|
648 { |
|
649 if (iExtension && iExtension->iH.iBar) |
|
650 return iExtension->iH.iBar; |
|
651 else |
|
652 { |
|
653 if (iV.iBar) |
|
654 return iV.iBar; |
|
655 } |
|
656 } |
|
657 |
|
658 return NULL; |
|
659 } |
|
660 |
|
661 EXPORT_C CEikScrollBar* CEikScrollBarFrame::GetScrollBarHandle(CEikScrollBar::TOrientation aOrientation) const |
|
662 // |
|
663 // returns the pointer to the appropriate scrollbar |
|
664 // |
|
665 { |
|
666 if (aOrientation==CEikScrollBar::EVertical) |
|
667 { |
|
668 if (iScrollBarFrameFlags&EDisplayVScrollBar) |
|
669 return(iV.iBar); |
|
670 } |
|
671 |
|
672 if (aOrientation==CEikScrollBar::EHorizontal) |
|
673 { |
|
674 if (iScrollBarFrameFlags&EDisplayHScrollBar && iExtension) |
|
675 return(iExtension->iH.iBar); |
|
676 } |
|
677 |
|
678 return(NULL); |
|
679 } |
|
680 |
|
681 EXPORT_C CEikScrollBar* CEikScrollBarFrame::VerticalScrollBar() const |
|
682 // |
|
683 // returns the vertical scroll bar |
|
684 // |
|
685 { |
|
686 return iV.iBar; |
|
687 } |
|
688 |
|
689 void CEikScrollBarFrame::CalcTheoreticalScrollBarVisibility(const TEikScrollBarModel* aVModel) |
|
690 // |
|
691 // Determines which scrollbars are necessary before size considerations are taken into account |
|
692 // |
|
693 { |
|
694 // assume no scrollbars to start with |
|
695 iScrollBarFrameFlags&=(~EDisplayVScrollBar); |
|
696 |
|
697 TBool scrollBarUseful = EFalse; |
|
698 |
|
699 switch(TypeOfVScrollBar()) |
|
700 { |
|
701 case EDoubleSpan: |
|
702 { |
|
703 if (aVModel->ScrollBarModelType() == TEikScrollBarModel::EAknDoubleSpanScrollBarModel) |
|
704 { |
|
705 //const TAknDoubleSpanScrollBarModel* model = static_cast <const TAknDoubleSpanScrollBarModel*> (aVModel); |
|
706 //scrollBarUseful = (model->FocusPosition() < model->ScrollSpan()) && (model->WindowSize() < model->ScrollSpan()); |
|
707 scrollBarUseful = ETrue; // S60 style says double span scrollbar is always shown if visibility is EAuto |
|
708 } |
|
709 else |
|
710 { |
|
711 // Error. User of the API is perhaps assigning values directly to TEikScrollBarModel |
|
712 // member variables which is not allowed with EAknDoubleSpanScrollBarModel. |
|
713 //#ifdef _DEBUG |
|
714 //RDebug::Print(_L("CEikScrollBarFrame: Please, use TAknDoubleSpanScrollBarModel instead of TEikScrollBarModel")); |
|
715 //#endif |
|
716 // In most cases we can work with the TEikScrollBarModel model. |
|
717 //scrollBarUseful = (aVModel->iThumbPosition < aVModel->iScrollSpan) && (aVModel->iThumbSpan < aVModel->iScrollSpan); |
|
718 scrollBarUseful = ETrue; // S60 style says double span scrollbar is always shown if visibility is EAuto |
|
719 } |
|
720 break; |
|
721 } |
|
722 |
|
723 case EArrowHead: // fallthrough |
|
724 default: |
|
725 { |
|
726 scrollBarUseful = aVModel->ScrollBarUseful(); |
|
727 break; |
|
728 } |
|
729 } |
|
730 |
|
731 if ( (iV.iVisibility==EOn) || ( (iV.iVisibility==EAuto)&&(scrollBarUseful) ) ) |
|
732 { |
|
733 iScrollBarFrameFlags|=EDisplayVScrollBar; |
|
734 } |
|
735 |
|
736 } |
|
737 |
|
738 CEikCba* CEikScrollBarFrame::GetCurrentCba() |
|
739 { |
|
740 CEikCba* mopCba = NULL; |
|
741 if (iExtension && iExtension->iParentWindow) |
|
742 mopCba=iExtension->iParentWindow->MopGetObject(mopCba); |
|
743 return mopCba; |
|
744 } |
|
745 |
|
746 void CEikScrollBarFrame::ApplyModel(SBarData& aSBar) |
|
747 { |
|
748 if (iExtension && iExtension->iParentWindow && iExtension->iParentWindow->IsVisible() |
|
749 && aSBar.iBar && aSBar.iBar->IsVisible()) |
|
750 { |
|
751 aSBar.iBar->SetModel(&aSBar.iModel); |
|
752 } |
|
753 } |
|
754 |
|
755 void CEikScrollBarFrame::MakeSBarVisible(SBarData& aSBar, TBool aVisible) |
|
756 { |
|
757 if (iExtension && iExtension->iParentWindow->IsVisible() && aSBar.iBar) |
|
758 { |
|
759 if (aVisible && iExtension->iParentWindow->IsVisible()) |
|
760 { |
|
761 aSBar.iBar->SetModel(&aSBar.iModel); |
|
762 aSBar.iBar->MakeVisible(ETrue); |
|
763 } |
|
764 else if(!aVisible) |
|
765 { |
|
766 aSBar.iBar->MakeVisible(EFalse); |
|
767 } |
|
768 } |
|
769 else if (TypeOfVScrollBar() == TScrollBarType(EDoubleSpan) && aSBar.iBar) |
|
770 aSBar.iBar->SetModel(&aSBar.iModel); |
|
771 } |
|
772 |
|
773 void CEikScrollBarFrame::SetParentWindow(CCoeControl* aParentWindow) |
|
774 { |
|
775 if (iExtension) |
|
776 { |
|
777 iExtension->iParentWindow=aParentWindow; |
|
778 } |
|
779 else |
|
780 { |
|
781 iExtension = new CEikScrollBarFrameExtension(); |
|
782 if (iExtension) |
|
783 { |
|
784 iExtension->iParentWindow = aParentWindow; |
|
785 iExtension->iH.iModel = TAknDoubleSpanScrollBarModel(); |
|
786 iExtension->iH.iBar = NULL; |
|
787 iExtension->iH.iExternalScrollBarAttached = EFalse; |
|
788 iExtension->iH.iVisibility = EOff; |
|
789 } |
|
790 } |
|
791 } |
|
792 |
|
793 CCoeControl* CEikScrollBarFrame::ParentWindow() const |
|
794 { |
|
795 if (iExtension) |
|
796 { |
|
797 return iExtension->iParentWindow; |
|
798 } |
|
799 else |
|
800 { |
|
801 return NULL; |
|
802 } |
|
803 } |
|
804 |
|
805 |
|
806 |
|
807 EXPORT_C void CEikScrollBarFrame::SetScrollBarFrameObserver(MEikScrollBarObserver* aObserver) |
|
808 { |
|
809 if( !AknLayoutUtils::PenEnabled() ) |
|
810 { |
|
811 return; |
|
812 } |
|
813 |
|
814 iExtension->iScrollBarObserver = aObserver; |
|
815 |
|
816 if(iV.iBar) |
|
817 { |
|
818 iV.iBar->SetScrollBarObserver(aObserver); |
|
819 } |
|
820 if(iExtension && iExtension->iH.iBar) |
|
821 { |
|
822 iExtension->iH.iBar->SetScrollBarObserver(aObserver); |
|
823 } |
|
824 } |
|
825 |
|
826 MEikScrollBarObserver* CEikScrollBarFrame::ScrollBarFrameObserver() |
|
827 { |
|
828 if(AknLayoutUtils::PenEnabled()) |
|
829 return iExtension->iScrollBarObserver; |
|
830 else |
|
831 return NULL; |
|
832 } |
|
833 |
|
834 // Functions which don't do anything useful in the avkon UI |
|
835 EXPORT_C void CEikScrollBarFrame::SetAdjustsHorizontalModel(TBool /*aAdjusts*/) |
|
836 { |
|
837 } |
|
838 |
|
839 EXPORT_C void CEikScrollBarFrame::SetAdjustsVerticalModel(TBool /*aAdjusts*/) |
|
840 { |
|
841 } |
|
842 |
|
843 EXPORT_C void CEikScrollBarFrame::MoveHorizThumbTo(TInt aHorizThumbPos) |
|
844 { |
|
845 if (iExtension && iExtension->iH.iBar) |
|
846 { |
|
847 if (TypeOfVScrollBar() == TScrollBarType(EDoubleSpan)) |
|
848 { |
|
849 // EDoubleSpan has different model. |
|
850 if (iV.iModel.ScrollBarModelType() == TEikScrollBarModel::EAknDoubleSpanScrollBarModel) |
|
851 { |
|
852 TAknDoubleSpanScrollBarModel* model = static_cast <TAknDoubleSpanScrollBarModel*> (&(iExtension->iH.iModel)); |
|
853 model->SetFocusPosition(aHorizThumbPos); |
|
854 } |
|
855 else |
|
856 { |
|
857 // Error. User of the API is perhaps assigning values directly to TEikScrollBarModel |
|
858 // member variables which is not allowed with EAknDoubleSpanScrollBarModel. |
|
859 // #ifdef _DEBUG |
|
860 // RDebug::Print(_L("CEikScrollBarFrame: Please, use TAknDoubleSpanScrollBarModel instead of TEikScrollBarModel")); |
|
861 // #endif |
|
862 // In most cases we can work with the TEikScrollBarModel model. |
|
863 iExtension->iH.iModel.iThumbPosition = aHorizThumbPos; |
|
864 } |
|
865 } |
|
866 ApplyModel(iExtension->iH); |
|
867 } |
|
868 } |
|
869 |
|
870 EXPORT_C void CEikScrollBarFrame::SetTypeOfHScrollBar(TScrollBarType aType) |
|
871 { |
|
872 if (iExtension && iExtension->iH.iBar) |
|
873 { |
|
874 if (TypeOfHScrollBar() == aType) |
|
875 return; // already set to requested type |
|
876 |
|
877 if (aType == CEikScrollBarFrame::TScrollBarType(EDoubleSpan)) |
|
878 { |
|
879 TRAP_IGNORE(CreateDoubleSpanScrollBarsL(ETrue,EFalse)); // by default a window owning |
|
880 return; |
|
881 } |
|
882 |
|
883 if (aType == CEikScrollBarFrame::TScrollBarType(EArrowHead)) |
|
884 { |
|
885 return; // not supported |
|
886 } |
|
887 } |
|
888 } |
|
889 |
|
890 EXPORT_C void CEikScrollBarFrame::SetTypeOfVScrollBar(TScrollBarType aType) |
|
891 { |
|
892 if (iV.iBar) |
|
893 { |
|
894 if (TypeOfVScrollBar() == aType) |
|
895 return; // already set to requested type |
|
896 |
|
897 |
|
898 if (aType == CEikScrollBarFrame::TScrollBarType(EDoubleSpan)) |
|
899 { |
|
900 TRAP_IGNORE(CreateDoubleSpanScrollBarsL(ETrue,EFalse)); // by default a window owning |
|
901 return; |
|
902 } |
|
903 |
|
904 if (aType == CEikScrollBarFrame::TScrollBarType(EArrowHead)) |
|
905 { |
|
906 TRAP_IGNORE(CreateArrowHeadScrollBarsL()); |
|
907 return; |
|
908 } |
|
909 } |
|
910 } |
|
911 |
|
912 EXPORT_C CEikScrollBarFrame::TScrollBarType CEikScrollBarFrame::TypeOfHScrollBar() const |
|
913 { |
|
914 if (iExtension && iExtension->iH.iBar && |
|
915 (iExtension->iH.iBar->ScrollBarType() == CEikScrollBar::TScrollBarType(EDoubleSpan))) |
|
916 { |
|
917 return EDoubleSpan; |
|
918 } |
|
919 else |
|
920 { |
|
921 return EArrowHead; |
|
922 } |
|
923 } |
|
924 |
|
925 EXPORT_C CEikScrollBarFrame::TScrollBarType CEikScrollBarFrame::TypeOfVScrollBar() const |
|
926 { |
|
927 if (iV.iBar && (iV.iBar->ScrollBarType() == CEikScrollBar::TScrollBarType(EDoubleSpan))) |
|
928 { |
|
929 return EDoubleSpan; |
|
930 } |
|
931 else |
|
932 { |
|
933 return EArrowHead; |
|
934 } |
|
935 } |
|
936 |
|
937 EXPORT_C TBool CEikScrollBarFrame::IsArrowHeadScrollBar(TInt /*aFlag*/) const |
|
938 { |
|
939 if (TypeOfVScrollBar() == TScrollBarType(EArrowHead)) |
|
940 { |
|
941 return ETrue; |
|
942 } |
|
943 else |
|
944 { |
|
945 return EFalse; |
|
946 } |
|
947 } |
|
948 |
|
949 EXPORT_C void CEikScrollBarFrame::CreateDoubleSpanScrollBarsL(TBool aWindowOwning, TBool aRemote) |
|
950 { |
|
951 CreateDoubleSpanScrollBarsL(aWindowOwning, aRemote, ETrue, ETrue); |
|
952 } |
|
953 |
|
954 EXPORT_C void CEikScrollBarFrame::CreateDoubleSpanScrollBarsL(TBool aWindowOwning, TBool aRemote, TBool aVertical, TBool aHorizontal) |
|
955 { |
|
956 if (!TAknDoubleSpanScrollBarModel::ModelIsSupported()) |
|
957 { |
|
958 return; |
|
959 } |
|
960 |
|
961 // This method should not delete the old scrollbars before it is sure that new |
|
962 // one has been succesfully created. Create a temp variable here. |
|
963 SBarData newVerticalScrollBar; |
|
964 newVerticalScrollBar.iBar = NULL; |
|
965 newVerticalScrollBar.iExternalScrollBarAttached = EFalse; |
|
966 newVerticalScrollBar.iVisibility = iV.iVisibility; |
|
967 |
|
968 SBarData newHorizontalScrollBar; |
|
969 newHorizontalScrollBar.iBar = NULL; |
|
970 newHorizontalScrollBar.iExternalScrollBarAttached = EFalse; |
|
971 if (iExtension) |
|
972 newHorizontalScrollBar.iVisibility = iExtension->iH.iVisibility; |
|
973 |
|
974 if (aRemote && iExtension && iExtension->iParentWindow) |
|
975 { |
|
976 // try getting scrollbarframe from parent using mop supply mechanism |
|
977 CEikScrollBarFrame* sbf = iExtension->iParentWindow->MopGetObject(sbf); |
|
978 if (sbf) |
|
979 { |
|
980 newVerticalScrollBar.iBar = sbf->VerticalScrollBar(); |
|
981 newVerticalScrollBar.iExternalScrollBarAttached = ETrue; |
|
982 |
|
983 newHorizontalScrollBar.iBar = sbf->HorizontalScrollBar(); |
|
984 newHorizontalScrollBar.iExternalScrollBarAttached = ETrue; |
|
985 |
|
986 TInt err1 = KErrNone; |
|
987 TInt err2 = KErrNone; |
|
988 if (newVerticalScrollBar.iBar) |
|
989 { |
|
990 TRAP(err1, newVerticalScrollBar.iBar->AddExternalFrameL(this)); |
|
991 } |
|
992 |
|
993 if (newHorizontalScrollBar.iBar) |
|
994 { |
|
995 TRAP(err2, newHorizontalScrollBar.iBar->AddExternalFrameL(this)); |
|
996 } |
|
997 |
|
998 if (err1 || err2) |
|
999 { |
|
1000 newVerticalScrollBar.iExternalScrollBarAttached = EFalse; |
|
1001 newVerticalScrollBar.iBar = NULL; |
|
1002 newHorizontalScrollBar.iExternalScrollBarAttached = EFalse; |
|
1003 newHorizontalScrollBar.iBar = NULL; |
|
1004 } |
|
1005 |
|
1006 User::LeaveIfError(err1); |
|
1007 User::LeaveIfError(err2); |
|
1008 |
|
1009 if (TypeOfVScrollBar() == EDoubleSpan) |
|
1010 { |
|
1011 if( AknLayoutUtils::PenEnabled() ) |
|
1012 { |
|
1013 // Correction. Giving null reference as parameter screws up the model values |
|
1014 newVerticalScrollBar.iModel = TAknDoubleSpanScrollBarModel(); |
|
1015 } |
|
1016 else |
|
1017 { |
|
1018 newVerticalScrollBar.iModel = TAknDoubleSpanScrollBarModel(0); |
|
1019 } |
|
1020 } |
|
1021 |
|
1022 if (TypeOfHScrollBar() == EDoubleSpan) |
|
1023 { |
|
1024 if( AknLayoutUtils::PenEnabled() ) |
|
1025 { |
|
1026 // Correction. Giving null reference as parameter screws up the model values |
|
1027 newHorizontalScrollBar.iModel = TAknDoubleSpanScrollBarModel(); |
|
1028 } |
|
1029 else |
|
1030 { |
|
1031 newHorizontalScrollBar.iModel = TAknDoubleSpanScrollBarModel(0); |
|
1032 } |
|
1033 } |
|
1034 |
|
1035 } |
|
1036 else |
|
1037 { |
|
1038 User::Leave(KErrNotFound); |
|
1039 } |
|
1040 } |
|
1041 else |
|
1042 { |
|
1043 // Create new vertical AknDoubleSpanScrollBar |
|
1044 newVerticalScrollBar.iBar = 0; |
|
1045 newVerticalScrollBar.iExternalScrollBarAttached=EFalse; |
|
1046 |
|
1047 CAknDoubleSpanScrollBar* verticalScrollBar = NULL; |
|
1048 |
|
1049 MEikScrollBarObserver* observer = NULL; |
|
1050 |
|
1051 if(AknLayoutUtils::PenEnabled()) |
|
1052 { |
|
1053 if(iExtension) |
|
1054 { |
|
1055 observer = iExtension->iScrollBarObserver; |
|
1056 } |
|
1057 } |
|
1058 |
|
1059 TInt scrollBarFlags = |
|
1060 ( ( iScrollBarFrameFlags & EEnableNudgeButtons ) ? |
|
1061 CEikScrollBar::EEnableNudgeButtons : 0 ) | |
|
1062 ( ( iScrollBarFrameFlags & EDisableExpandedTouchArea ) ? |
|
1063 CEikScrollBar::EDisableExpandedTouchArea : 0 ); |
|
1064 |
|
1065 if (aVertical) |
|
1066 { |
|
1067 verticalScrollBar = new(ELeave) CAknDoubleSpanScrollBar(ParentWindow()); |
|
1068 CleanupStack::PushL(verticalScrollBar); |
|
1069 verticalScrollBar->ConstructL( |
|
1070 aWindowOwning, observer ,ParentWindow(), |
|
1071 CAknScrollBar::EVertical, |
|
1072 KLongEnoughToCauseComponentsToBeCreated, |
|
1073 scrollBarFlags ); |
|
1074 CleanupStack::Pop(); // verticalScrollBar |
|
1075 } |
|
1076 newVerticalScrollBar.iBar = verticalScrollBar; |
|
1077 if( AknLayoutUtils::PenEnabled() ) |
|
1078 { |
|
1079 // Correction. Giving null reference as parameter screws up the model values |
|
1080 newVerticalScrollBar.iModel = TAknDoubleSpanScrollBarModel(); |
|
1081 } |
|
1082 else |
|
1083 { |
|
1084 newVerticalScrollBar.iModel = TAknDoubleSpanScrollBarModel(0); |
|
1085 } |
|
1086 |
|
1087 // Create new horizontal AknDoubleSpanScrollBar |
|
1088 newHorizontalScrollBar.iBar = 0; |
|
1089 newHorizontalScrollBar.iExternalScrollBarAttached=EFalse; |
|
1090 CAknDoubleSpanScrollBar* horizontalScrollBar = NULL; |
|
1091 |
|
1092 if (aHorizontal) |
|
1093 { |
|
1094 horizontalScrollBar = new(ELeave) CAknDoubleSpanScrollBar(ParentWindow()); |
|
1095 CleanupStack::PushL(horizontalScrollBar); |
|
1096 horizontalScrollBar->ConstructL( |
|
1097 aWindowOwning, observer ,ParentWindow(), |
|
1098 CAknScrollBar::EHorizontal, |
|
1099 KLongEnoughToCauseComponentsToBeCreated, |
|
1100 scrollBarFlags ); |
|
1101 CleanupStack::Pop(); // horizontalScrollBar |
|
1102 } |
|
1103 newHorizontalScrollBar.iBar = horizontalScrollBar; |
|
1104 if( AknLayoutUtils::PenEnabled() ) |
|
1105 { |
|
1106 // Correction. Giving null reference as parameter screws up the model values |
|
1107 newHorizontalScrollBar.iModel = TAknDoubleSpanScrollBarModel(); |
|
1108 } |
|
1109 else |
|
1110 { |
|
1111 newHorizontalScrollBar.iModel = TAknDoubleSpanScrollBarModel(0); |
|
1112 } |
|
1113 } |
|
1114 |
|
1115 TBool oldVerticalScrollbarExists = EFalse; |
|
1116 TBool oldHorizontalScrollbarExists = EFalse; |
|
1117 |
|
1118 if (iV.iBar) |
|
1119 oldVerticalScrollbarExists = ETrue; |
|
1120 |
|
1121 if (iExtension && iExtension->iH.iBar) |
|
1122 oldHorizontalScrollbarExists = ETrue; |
|
1123 |
|
1124 |
|
1125 if (oldVerticalScrollbarExists || oldHorizontalScrollbarExists) |
|
1126 { |
|
1127 // Remove old scroll bar |
|
1128 DeleteScrollBars(); |
|
1129 } |
|
1130 |
|
1131 iV = newVerticalScrollBar; |
|
1132 |
|
1133 if (iExtension) |
|
1134 iExtension->iH = newHorizontalScrollBar; |
|
1135 |
|
1136 } |
|
1137 |
|
1138 |
|
1139 EXPORT_C void CEikScrollBarFrame::Tile(TEikScrollBarModel* aVModel, TRect& aVScrollBarRect) |
|
1140 { |
|
1141 Tile(aVModel); |
|
1142 TRect tempRect(aVScrollBarRect); |
|
1143 if(aVScrollBarRect.Height() < 0 ) |
|
1144 { |
|
1145 aVScrollBarRect.iTl.iY = aVScrollBarRect.iBr.iY; |
|
1146 aVScrollBarRect.iBr.iY = tempRect.iTl.iY; |
|
1147 } |
|
1148 if(aVScrollBarRect.Width() < 0 ) |
|
1149 { |
|
1150 aVScrollBarRect.iTl.iX = aVScrollBarRect.iBr.iX; |
|
1151 aVScrollBarRect.iBr.iX = tempRect.iTl.iX; |
|
1152 } |
|
1153 if (iV.iBar && TypeOfVScrollBar() == EDoubleSpan && iV.iExternalScrollBarAttached==EFalse ) |
|
1154 { |
|
1155 CAknDoubleSpanScrollBar* scrollbar = static_cast <CAknDoubleSpanScrollBar*> (iV.iBar); |
|
1156 // check if fixed layout has been set |
|
1157 if (scrollbar->FixedLayoutRect().Size() == TSize(0,0)) |
|
1158 { |
|
1159 if (aVScrollBarRect != TRect(iV.iBar->Position(), iV.iBar->Size())) |
|
1160 { |
|
1161 iV.iBar->SetRect(aVScrollBarRect); |
|
1162 } |
|
1163 } |
|
1164 } |
|
1165 } |
|
1166 |
|
1167 |
|
1168 void CEikScrollBarFrame::DeleteScrollBars() |
|
1169 { |
|
1170 // |
|
1171 // Delete vertical scollbar |
|
1172 // |
|
1173 if(!iV.iExternalScrollBarAttached) |
|
1174 delete(iV.iBar); |
|
1175 else if (iV.iBar) |
|
1176 { |
|
1177 if (iExtension && iExtension->iParentWindow && iExtension->iParentWindow->IsVisible()) |
|
1178 { |
|
1179 // This test will be false if the app is being destroyed, making it unsafe to resize the CBA. |
|
1180 if (CCoeEnv::Static()->NormalFont()) |
|
1181 iV.iBar->MakeVisible(EFalse); |
|
1182 } |
|
1183 iV.iBar->RemoveExternalFrame(this); // calls back to DisconnectExternalScrollBar to null iV.iBar |
|
1184 __ASSERT_DEBUG(iV.iBar == NULL, SbfPanic(EFailedToRemoveExternalScrollBar)); |
|
1185 } |
|
1186 |
|
1187 // |
|
1188 // Delete horizontal scrollbar |
|
1189 // |
|
1190 if(iExtension && iExtension->iH.iBar) |
|
1191 { |
|
1192 if(!(iExtension->iH.iExternalScrollBarAttached)) |
|
1193 { |
|
1194 delete(iExtension->iH.iBar); |
|
1195 iExtension->iH.iBar = NULL; |
|
1196 } |
|
1197 else if (iExtension->iH.iBar) |
|
1198 { |
|
1199 if (iExtension && iExtension->iParentWindow && iExtension->iParentWindow->IsVisible()) |
|
1200 { |
|
1201 // This test will be false if the app is being destroyed, making it unsafe to resize the CBA. |
|
1202 if (CCoeEnv::Static()->NormalFont()) |
|
1203 iExtension->iH.iBar->MakeVisible(EFalse); |
|
1204 } |
|
1205 iExtension->iH.iBar->RemoveExternalFrame(this); // calls back to DisconnectExternalScrollBar to null iV.iBar |
|
1206 __ASSERT_DEBUG(iExtension->iH.iBar == NULL, SbfPanic(EFailedToRemoveExternalScrollBar)); |
|
1207 } |
|
1208 } |
|
1209 } |
|
1210 |
|
1211 |
|
1212 void CEikScrollBarFrame::CreateArrowHeadScrollBarsL() |
|
1213 { |
|
1214 CEikCba* cba=GetCurrentCba(); |
|
1215 if (cba) |
|
1216 { |
|
1217 // create arrow heads |
|
1218 TRAPD(err, cba->CreateArrowHeadScrollBarL()); |
|
1219 if (err) |
|
1220 { |
|
1221 iV.iExternalScrollBarAttached = EFalse; |
|
1222 iV.iBar = NULL; |
|
1223 return; |
|
1224 } |
|
1225 // delete old scroll bars |
|
1226 DeleteScrollBars(); |
|
1227 // returns the vertical scroll bar from the top scroll bar host |
|
1228 iV.iBar=cba->VScrollBarAsControl(); |
|
1229 iV.iExternalScrollBarAttached=ETrue; |
|
1230 TRAPD(err2, iV.iBar->AddExternalFrameL(this)); |
|
1231 if (err2) |
|
1232 { |
|
1233 iV.iExternalScrollBarAttached = EFalse; |
|
1234 iV.iBar = NULL; |
|
1235 } |
|
1236 } |
|
1237 } |
|
1238 |
|
1239 void CEikScrollBarFrame::CalcTheoreticalScrollBarVisibility(const TEikScrollBarModel* aVModel, const TEikScrollBarModel* aHModel) |
|
1240 { |
|
1241 // assume no scrollbars to start with |
|
1242 iScrollBarFrameFlags&=(~EDisplayVScrollBar); |
|
1243 iScrollBarFrameFlags&=(~EDisplayHScrollBar); |
|
1244 |
|
1245 TBool verticalScrollBarUseful = EFalse; |
|
1246 TBool horizontalScrollBarUseful = EFalse; |
|
1247 |
|
1248 if (aVModel) |
|
1249 { |
|
1250 switch(TypeOfVScrollBar()) |
|
1251 { |
|
1252 case EDoubleSpan: |
|
1253 { |
|
1254 if (aVModel->ScrollBarModelType() == TEikScrollBarModel::EAknDoubleSpanScrollBarModel) |
|
1255 { |
|
1256 //const TAknDoubleSpanScrollBarModel* model = static_cast <const TAknDoubleSpanScrollBarModel*> (aVModel); |
|
1257 //verticalScrollBarUseful = (model->FocusPosition() < model->ScrollSpan()) && (model->WindowSize() <= model->ScrollSpan()); |
|
1258 verticalScrollBarUseful = ETrue; // S60 style says double span scrollbar is always shown if visibility is EAuto |
|
1259 } |
|
1260 else |
|
1261 { |
|
1262 // Error. User of the API is perhaps assigning values directly to TEikScrollBarModel |
|
1263 // member variables which is not allowed with EAknDoubleSpanScrollBarModel. |
|
1264 //#ifdef _DEBUG |
|
1265 //RDebug::Print(_L("CEikScrollBarFrame: Please, use TAknDoubleSpanScrollBarModel instead of TEikScrollBarModel")); |
|
1266 //#endif |
|
1267 // In most cases we can work with the TEikScrollBarModel model. |
|
1268 //verticalScrollBarUseful = (aVModel->iThumbPosition < aVModel->iScrollSpan) && (aVModel->iThumbSpan <= aVModel->iScrollSpan); |
|
1269 verticalScrollBarUseful = ETrue; // S60 style says double span scrollbar is always shown if visibility is EAuto |
|
1270 } |
|
1271 break; |
|
1272 } |
|
1273 |
|
1274 case EArrowHead: // fallthrough |
|
1275 default: |
|
1276 { |
|
1277 verticalScrollBarUseful = aVModel->ScrollBarUseful(); |
|
1278 break; |
|
1279 } |
|
1280 } |
|
1281 } |
|
1282 |
|
1283 if (aHModel) |
|
1284 { |
|
1285 switch(TypeOfHScrollBar()) |
|
1286 { |
|
1287 case EDoubleSpan: // by default only double span is supported as horizontal scrollbar |
|
1288 default: |
|
1289 { |
|
1290 if (aHModel->ScrollBarModelType() == TEikScrollBarModel::EAknDoubleSpanScrollBarModel) |
|
1291 { |
|
1292 //const TAknDoubleSpanScrollBarModel* model = static_cast <const TAknDoubleSpanScrollBarModel*> (aHModel); |
|
1293 //horizontalScrollBarUseful = (model->FocusPosition() < model->ScrollSpan()) && (model->WindowSize() <= model->ScrollSpan()); |
|
1294 horizontalScrollBarUseful = ETrue; // S60 style says double span scrollbar is always shown if visibility is EAuto |
|
1295 } |
|
1296 else |
|
1297 { |
|
1298 // Error. User of the API is perhaps assigning values directly to TEikScrollBarModel |
|
1299 // member variables which is not allowed with EAknDoubleSpanScrollBarModel. |
|
1300 //#ifdef _DEBUG |
|
1301 //RDebug::Print(_L("CEikScrollBarFrame: Please, use TAknDoubleSpanScrollBarModel instead of TEikScrollBarModel")); |
|
1302 //#endif |
|
1303 // In most cases we can work with the TEikScrollBarModel model. |
|
1304 //horizontalScrollBarUseful = (aHModel->iThumbPosition < aHModel->iScrollSpan) && (aHModel->iThumbSpan <= aVModel->iScrollSpan); |
|
1305 horizontalScrollBarUseful = ETrue; // S60 style says double span scrollbar is always shown if visibility is EAuto |
|
1306 } |
|
1307 break; |
|
1308 } |
|
1309 } |
|
1310 } |
|
1311 |
|
1312 |
|
1313 // Decide visibility for vertical scrollbar |
|
1314 if ( (iV.iVisibility==EOn) || ( (iV.iVisibility==EAuto)&&(verticalScrollBarUseful) ) ) |
|
1315 { |
|
1316 iScrollBarFrameFlags|=EDisplayVScrollBar; |
|
1317 } |
|
1318 |
|
1319 // Decide visibility for horizontal scrollbar |
|
1320 if (iExtension && (iExtension->iH.iVisibility==EOn || (iExtension->iH.iVisibility==EAuto && horizontalScrollBarUseful))) |
|
1321 { |
|
1322 iScrollBarFrameFlags|=EDisplayHScrollBar; |
|
1323 } |
|
1324 } |
|
1325 |
|
1326 EXPORT_C CEikScrollBarFrame::TScrollBarVisibility CEikScrollBarFrame::ScrollBarVisibility(CEikScrollBar::TOrientation aOrientation) const |
|
1327 { |
|
1328 if (aOrientation == CEikScrollBar::EVertical) |
|
1329 { |
|
1330 return iV.iVisibility; |
|
1331 } |
|
1332 else |
|
1333 { |
|
1334 if (iExtension) |
|
1335 { |
|
1336 return iExtension->iH.iVisibility; |
|
1337 } |
|
1338 else |
|
1339 { |
|
1340 return EOff; |
|
1341 } |
|
1342 |
|
1343 } |
|
1344 } |
|
1345 |
|
1346 EXPORT_C void CEikScrollBarFrame::Tile(TEikScrollBarModel* aHModel, TEikScrollBarModel* aVModel) |
|
1347 { |
|
1348 GetScrollBars(EFalse); |
|
1349 CalcTheoreticalScrollBarVisibility(aVModel,aHModel); |
|
1350 |
|
1351 if (iV.iVisibility!=EOff) |
|
1352 iV.iModel = *aVModel; |
|
1353 |
|
1354 MakeSBarVisible(iV, iScrollBarFrameFlags&EDisplayVScrollBar); |
|
1355 |
|
1356 if (iExtension && iExtension->iH.iBar) |
|
1357 { |
|
1358 if (iExtension->iH.iVisibility!=EOff) |
|
1359 iExtension->iH.iModel = *aHModel; |
|
1360 |
|
1361 MakeSBarVisible(iExtension->iH, iScrollBarFrameFlags&EDisplayHScrollBar); |
|
1362 } |
|
1363 |
|
1364 } |
|
1365 |
|
1366 EXPORT_C TInt CEikScrollBarFrame::DrawBackground(TBool aDrawHorizontal, TBool aDrawVertical) |
|
1367 { |
|
1368 // The double span scrollbar only supports backgroun drawing flag |
|
1369 if(TypeOfHScrollBar() != EDoubleSpan && TypeOfVScrollBar() != EDoubleSpan) |
|
1370 { |
|
1371 return KErrNotSupported; |
|
1372 } |
|
1373 |
|
1374 if(iV.iBar && (TypeOfVScrollBar() == EDoubleSpan)) |
|
1375 { |
|
1376 CAknDoubleSpanScrollBar* scrollbar = static_cast <CAknDoubleSpanScrollBar*> (iV.iBar); |
|
1377 scrollbar->DrawBackground(aDrawVertical); |
|
1378 } |
|
1379 |
|
1380 if(iExtension && iExtension->iH.iBar && (TypeOfHScrollBar() == EDoubleSpan)) |
|
1381 { |
|
1382 CAknDoubleSpanScrollBar* scrollbar = static_cast <CAknDoubleSpanScrollBar*> (iExtension->iH.iBar); |
|
1383 scrollbar->DrawBackground(aDrawHorizontal); |
|
1384 } |
|
1385 |
|
1386 return KErrNone; |
|
1387 } |
|
1388 |
|
1389 EXPORT_C TInt CEikScrollBarFrame::DrawBackgroundState(TBool& aDrawHorizontal, TBool& aDrawVertical) |
|
1390 { |
|
1391 // The double span scrollbar only supports backgroun drawing flag |
|
1392 |
|
1393 if(iV.iBar && (TypeOfVScrollBar() == EDoubleSpan)) |
|
1394 { |
|
1395 CAknDoubleSpanScrollBar* scrollbar = static_cast <CAknDoubleSpanScrollBar*> (iV.iBar); |
|
1396 aDrawVertical = scrollbar->DrawBackgroundState(); |
|
1397 } |
|
1398 |
|
1399 if(iExtension && iExtension->iH.iBar && (TypeOfHScrollBar() == EDoubleSpan)) |
|
1400 { |
|
1401 CAknDoubleSpanScrollBar* scrollbar = static_cast <CAknDoubleSpanScrollBar*> (iExtension->iH.iBar); |
|
1402 aDrawHorizontal = scrollbar->DrawBackgroundState(); |
|
1403 } |
|
1404 |
|
1405 if(TypeOfHScrollBar() != EDoubleSpan && TypeOfVScrollBar() != EDoubleSpan) |
|
1406 { |
|
1407 return KErrNotSupported; |
|
1408 } |
|
1409 |
|
1410 return KErrNone; |
|
1411 } |
|
1412 |
|
1413 CEikScrollBar* CEikScrollBarFrame::HorizontalScrollBar() const |
|
1414 { |
|
1415 if (iExtension) |
|
1416 return iExtension->iH.iBar; |
|
1417 else |
|
1418 return NULL; |
|
1419 } |
|
1420 |
|
1421 |
|
1422 |
|
1423 // For Cba Scrollbar frame |
|
1424 |
|
1425 CEikCbaScrollBarFrame::CEikCbaScrollBarFrame(CCoeControl* aParentWindow, MEikScrollBarObserver* /*aObserver*/, TBool /*aPreAlloc*/) |
|
1426 { |
|
1427 SetParentWindow(aParentWindow); |
|
1428 } |
|
1429 |
|
1430 void CEikCbaScrollBarFrame::ConstructL() |
|
1431 { |
|
1432 iV.iBar = 0; |
|
1433 iV.iExternalScrollBarAttached=EFalse; |
|
1434 |
|
1435 // We construct CEikScrollBar instance here, because it doesn't create bitmaps -> faster |
|
1436 // and save RAM. If CBAs are really needed, then we replace CEikScrollBar with |
|
1437 // CAknArrowHeadScrollBar instance at SwitchArrowHeadScrollBarL method. |
|
1438 iV.iBar = new(ELeave) CEikScrollBar(); |
|
1439 iV.iBar->ConstructL(NULL,ParentWindow(),CAknScrollBar::EVertical,KLongEnoughToCauseComponentsToBeCreated,0); |
|
1440 } |
|
1441 |
|
1442 // Delete CEikScrollBar instance and replace it with actual arrow head scroll bar |
|
1443 void CEikCbaScrollBarFrame::SwitchToArrowHeadScrollBarL() |
|
1444 { |
|
1445 delete(iV.iBar); |
|
1446 iV.iBar = 0; |
|
1447 iV.iExternalScrollBarAttached=EFalse; |
|
1448 iV.iBar = new(ELeave) CAknArrowHeadScrollBar(ParentWindow()); |
|
1449 iV.iBar->ConstructL(NULL,ParentWindow(),CAknScrollBar::EVertical,KLongEnoughToCauseComponentsToBeCreated,0); |
|
1450 } |
|
1451 |