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1 /* |
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2 * Copyright (c) 1997-2009 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 #ifndef __FRMVIS_H__ |
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20 #define __FRMVIS_H__ |
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21 |
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22 #include <e32std.h> |
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23 #include <e32base.h> |
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24 |
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25 class RReadStream; |
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26 class RWriteStream; |
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27 |
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28 /** |
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29 A set of flags to indicate which non-printing characters (e.g. space, tab, |
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30 paragraph break, etc.) should be drawn using symbols. By default, all |
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31 non-printing characters are hidden. |
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32 |
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33 An instance of this class is used in |
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34 CTextLayout::SetNonPrintingCharsVisibility(). |
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35 @publishedAll |
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36 @released |
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37 */ |
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38 class TNonPrintingCharVisibility |
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39 |
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40 { |
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41 private: |
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42 enum TShowFormatChars |
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43 { |
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44 EFNothingVisible=0x000, |
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45 EFTabsVisible=0x001, |
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46 EFSpacesVisible=0x002, |
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47 EFParagraphDelimitersVisible=0x004, |
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48 EFLineBreaksVisible=0x008, |
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49 EFPotentialHyphensVisible=0x010, |
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50 EFNonBreakingHyphensVisible=0x020, |
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51 EFNonBreakingSpacesVisible=0x040, |
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52 EFPageBreaksVisible=0x080, |
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53 EFEverythingVisible=0xffffffff |
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54 }; |
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55 public: |
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56 IMPORT_C TNonPrintingCharVisibility(); |
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57 IMPORT_C TNonPrintingCharVisibility(const TNonPrintingCharVisibility& aVisibility); |
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58 IMPORT_C TNonPrintingCharVisibility& operator=(const TNonPrintingCharVisibility& aVisibility); |
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59 IMPORT_C void ExternalizeL(RWriteStream& aStream)const; |
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60 IMPORT_C void InternalizeL(RReadStream& aStream); |
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61 IMPORT_C void SetAllVisible(); |
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62 IMPORT_C void SetNoneVisible(); |
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63 IMPORT_C void SetTabsVisible(TBool aVisible); |
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64 IMPORT_C void SetSpacesVisible(TBool aVisible); |
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65 IMPORT_C void SetParagraphDelimitersVisible(TBool aVisible); |
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66 IMPORT_C void SetLineBreaksVisible(TBool aVisible); |
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67 IMPORT_C void SetPotentialHyphensVisible(TBool aVisible); |
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68 IMPORT_C void SetNonBreakingHyphensVisible(TBool aVisible); |
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69 IMPORT_C void SetNonBreakingSpacesVisible(TBool aVisible); |
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70 IMPORT_C void SetPageBreaksVisible(TBool aVisible); |
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71 |
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72 /** Tests whether all non-printing characters are visible. |
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73 @return ETrue if all non-printing characters are visible. EFalse if any or |
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74 all hidden. */ |
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75 inline TBool AllVisible()const{return iVisible==EFEverythingVisible;}; |
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76 |
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77 /** Tests whether all non-printing characters are hidden. |
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78 @return ETrue if all non-printing characters are hidden. EFalse if any are |
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79 visible. */ |
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80 inline TBool NoneVisible()const{return iVisible==EFNothingVisible;}; |
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81 |
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82 /** Tests whether tab stop characters are visible. |
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83 @return ETrue if tab stop characters are visible. EFalse if hidden. */ |
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84 inline TBool TabsVisible()const{return iVisible&EFTabsVisible;}; |
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85 |
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86 /** Tests whether space characters are visible. |
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87 |
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88 Note: To get the the visibility of non-breaking space characters, use |
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89 NonBreakingSpacesVisible() instead. |
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90 @return ETrue if space characters are visible. EFalse if hidden. */ |
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91 inline TBool SpacesVisible()const{return iVisible&EFSpacesVisible;}; |
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92 |
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93 /** Tests whether paragraph delimiters are visible. |
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94 @return ETrue if paragraph delimiters are visible. EFalse if hidden. */ |
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95 inline TBool ParagraphDelimitersVisible()const{return iVisible&EFParagraphDelimitersVisible;}; |
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96 |
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97 /** Tests whether forced line break characters are visible. |
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98 @return ETrue if forced line break characters are visible. EFalse if hidden. |
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99 */ |
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100 inline TBool LineBreaksVisible()const{return iVisible&EFLineBreaksVisible;}; |
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101 |
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102 /** Tests whether potential hyphen characters (inserted before a line break |
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103 within a word) are visible. |
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104 |
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105 @return ETrue if potential hyphen characters are visible. EFalse if hidden. |
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106 */ |
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107 inline TBool PotentialHyphensVisible()const{return iVisible&EFPotentialHyphensVisible;}; |
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108 |
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109 /** Tests whether non-breaking hyphens (enclosing word is always kept on |
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110 the same line) are visible. |
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111 @return ETrue if non-breaking hyphens are visible. EFalse if hidden. */ |
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112 inline TBool NonBreakingHyphensVisible()const{return iVisible&EFNonBreakingHyphensVisible;}; |
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113 |
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114 /** Tests whether non-breaking spaces are visible. |
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115 @return ETrue if non-breaking spaces are visible. EFalse if hidden. */ |
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116 inline TBool NonBreakingSpacesVisible()const{return iVisible&EFNonBreakingSpacesVisible;}; |
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117 |
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118 /** Tests whether page break characters are visible. |
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119 @return ETrue if page break characters are visible. EFalse if hidden. */ |
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120 inline TBool PageBreaksVisible()const{return iVisible&EFPageBreaksVisible;}; |
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121 |
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122 private: |
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123 TUint32 iVisible; |
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124 }; |
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125 |
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126 #endif |
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127 |
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128 |