| 1 | /* | 
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| 2 | * gdiplusstringformat.h | 
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| 3 | * | 
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| 4 | * GDI+ StringFormat class | 
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| 5 | * | 
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| 6 | * This file is part of the w32api package. | 
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| 7 | * | 
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| 8 | * Contributors: | 
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| 9 | *   Created by Markus Koenig <markus@stber-koenig.de> | 
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| 10 | * | 
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| 11 | * THIS SOFTWARE IS NOT COPYRIGHTED | 
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| 12 | * | 
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| 13 | * This source code is offered for use in the public domain. You may | 
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| 14 | * use, modify or distribute it freely. | 
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| 15 | * | 
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| 16 | * This code is distributed in the hope that it will be useful but | 
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| 17 | * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY | 
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| 18 | * DISCLAIMED. This includes but is not limited to warranties of | 
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | 
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| 20 | * | 
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| 21 | */ | 
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| 22 |  | 
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| 23 | #ifndef __GDIPLUS_STRINGFORMAT_H | 
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| 24 | #define __GDIPLUS_STRINGFORMAT_H | 
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| 25 | #if __GNUC__ >=3 | 
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| 26 | #pragma GCC system_header | 
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| 27 | #endif | 
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| 28 |  | 
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| 29 | #ifndef __cplusplus | 
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| 30 | #error "A C++ compiler is required to include gdiplusstringformat.h." | 
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| 31 | #endif | 
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| 32 |  | 
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| 33 | class StringFormat: public GdiplusBase | 
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| 34 | { | 
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| 35 | friend class Graphics; | 
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| 36 | friend class GraphicsPath; | 
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| 37 |  | 
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| 38 | public: | 
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| 39 | static const StringFormat* GenericDefault(); | 
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| 40 | static const StringFormat* GenericTypographic(); | 
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| 41 |  | 
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| 42 | StringFormat(INT formatFlags = 0, LANGID language = LANG_NEUTRAL): | 
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| 43 | nativeStringFormat(NULL), lastStatus(Ok) | 
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| 44 | { | 
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| 45 | lastStatus = DllExports::GdipCreateStringFormat( | 
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| 46 | formatFlags, language, &nativeStringFormat); | 
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| 47 | } | 
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| 48 | StringFormat(const StringFormat *format): | 
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| 49 | nativeStringFormat(NULL), lastStatus(Ok) | 
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| 50 | { | 
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| 51 | lastStatus = DllExports::GdipCloneStringFormat( | 
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| 52 | format ? format->nativeStringFormat : NULL, | 
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| 53 | &nativeStringFormat); | 
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| 54 | } | 
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| 55 | ~StringFormat() | 
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| 56 | { | 
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| 57 | DllExports::GdipDeleteStringFormat(nativeStringFormat); | 
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| 58 | } | 
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| 59 | StringFormat* Clone() const | 
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| 60 | { | 
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| 61 | GpStringFormat *cloneStringFormat = NULL; | 
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| 62 | Status status = updateStatus(DllExports::GdipCloneStringFormat( | 
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| 63 | nativeStringFormat, &cloneStringFormat)); | 
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| 64 | if (status == Ok) { | 
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| 65 | StringFormat *result = new StringFormat( | 
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| 66 | cloneStringFormat, lastStatus); | 
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| 67 | if (!result) { | 
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| 68 | DllExports::GdipDeleteStringFormat(cloneStringFormat); | 
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| 69 | lastStatus = OutOfMemory; | 
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| 70 | } | 
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| 71 | return result; | 
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| 72 | } else { | 
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| 73 | return NULL; | 
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| 74 | } | 
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| 75 | } | 
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| 76 |  | 
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| 77 | StringAlignment GetAlignment() const | 
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| 78 | { | 
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| 79 | StringAlignment result = StringAlignmentNear; | 
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| 80 | updateStatus(DllExports::GdipGetStringFormatAlign( | 
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| 81 | nativeStringFormat, &result)); | 
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| 82 | return result; | 
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| 83 | } | 
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| 84 | LANGID GetDigitSubstitutionLanguage() const | 
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| 85 | { | 
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| 86 | LANGID result = 0; | 
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| 87 | StringDigitSubstitute method; | 
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| 88 | updateStatus(DllExports::GdipGetStringFormatDigitSubstitution( | 
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| 89 | nativeStringFormat, &result, &method)); | 
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| 90 | return result; | 
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| 91 | } | 
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| 92 | StringDigitSubstitute GetDigitSubstitutionMethod() const | 
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| 93 | { | 
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| 94 | LANGID language; | 
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| 95 | StringDigitSubstitute result = StringDigitSubstituteUser; | 
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| 96 | updateStatus(DllExports::GdipGetStringFormatDigitSubstitution( | 
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| 97 | nativeStringFormat, &language, &result)); | 
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| 98 | return result; | 
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| 99 | } | 
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| 100 | INT GetFormatFlags() const | 
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| 101 | { | 
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| 102 | INT result = 0; | 
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| 103 | updateStatus(DllExports::GdipGetStringFormatFlags( | 
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| 104 | nativeStringFormat, &result)); | 
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| 105 | return result; | 
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| 106 | } | 
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| 107 | HotkeyPrefix GetHotkeyPrefix() const | 
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| 108 | { | 
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| 109 | HotkeyPrefix result = HotkeyPrefixNone; | 
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| 110 | updateStatus(DllExports::GdipGetStringFormatHotkeyPrefix( | 
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| 111 | nativeStringFormat, (INT*) &result)); | 
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| 112 | return result; | 
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| 113 | } | 
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| 114 | Status GetLastStatus() const | 
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| 115 | { | 
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| 116 | Status result = lastStatus; | 
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| 117 | lastStatus = Ok; | 
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| 118 | return result; | 
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| 119 | } | 
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| 120 | StringAlignment GetLineAlignment() const | 
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| 121 | { | 
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| 122 | StringAlignment result = StringAlignmentNear; | 
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| 123 | updateStatus(DllExports::GdipGetStringFormatLineAlign( | 
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| 124 | nativeStringFormat, &result)); | 
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| 125 | return result; | 
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| 126 | } | 
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| 127 | INT GetMeasurableCharacterRangeCount() const | 
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| 128 | { | 
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| 129 | INT result = 0; | 
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| 130 | updateStatus(DllExports::GdipGetStringFormatMeasurableCharacterRangeCount( | 
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| 131 | nativeStringFormat, &result)); | 
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| 132 | return result; | 
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| 133 | } | 
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| 134 | INT GetTabStopCount() const | 
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| 135 | { | 
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| 136 | INT result = 0; | 
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| 137 | updateStatus(DllExports::GdipGetStringFormatTabStopCount( | 
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| 138 | nativeStringFormat, &result)); | 
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| 139 | return result; | 
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| 140 | } | 
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| 141 | Status GetTabStops(INT count, REAL *firstTabOffset, REAL *tabStops) | 
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| 142 | { | 
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| 143 | return updateStatus(DllExports::GdipGetStringFormatTabStops( | 
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| 144 | nativeStringFormat, count, | 
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| 145 | firstTabOffset, tabStops)); | 
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| 146 | } | 
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| 147 | StringTrimming GetTrimming() const | 
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| 148 | { | 
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| 149 | StringTrimming result = StringTrimmingNone; | 
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| 150 | updateStatus(DllExports::GdipGetStringFormatTrimming( | 
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| 151 | nativeStringFormat, &result)); | 
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| 152 | return result; | 
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| 153 | } | 
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| 154 | Status SetAlignment(StringAlignment align) | 
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| 155 | { | 
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| 156 | return updateStatus(DllExports::GdipSetStringFormatAlign( | 
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| 157 | nativeStringFormat, align)); | 
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| 158 | } | 
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| 159 | Status SetDigitSubstitution(LANGID language, | 
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| 160 | StringDigitSubstitute substitute) | 
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| 161 | { | 
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| 162 | return updateStatus(DllExports::GdipSetStringFormatDigitSubstitution( | 
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| 163 | nativeStringFormat, language, substitute)); | 
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| 164 | } | 
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| 165 | Status SetFormatFlags(INT flags) | 
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| 166 | { | 
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| 167 | return updateStatus(DllExports::GdipSetStringFormatFlags( | 
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| 168 | nativeStringFormat, flags)); | 
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| 169 | } | 
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| 170 | Status SetHotkeyPrefix(HotkeyPrefix hotkeyPrefix) | 
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| 171 | { | 
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| 172 | return updateStatus(DllExports::GdipSetStringFormatHotkeyPrefix( | 
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| 173 | nativeStringFormat, (INT) hotkeyPrefix)); | 
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| 174 | } | 
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| 175 | Status SetLineAlignment(StringAlignment align) | 
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| 176 | { | 
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| 177 | return updateStatus(DllExports::GdipSetStringFormatLineAlign( | 
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| 178 | nativeStringFormat, align)); | 
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| 179 | } | 
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| 180 | Status SetMeasurableCharacterRanges(INT rangeCount, | 
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| 181 | const CharacterRange *ranges) | 
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| 182 | { | 
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| 183 | return updateStatus(DllExports::GdipSetStringFormatMeasurableCharacterRanges( | 
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| 184 | nativeStringFormat, rangeCount, ranges)); | 
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| 185 | } | 
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| 186 | Status SetTabStops(REAL firstTabOffset, INT count, const REAL *tabStops) | 
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| 187 | { | 
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| 188 | return updateStatus(DllExports::GdipSetStringFormatTabStops( | 
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| 189 | nativeStringFormat, firstTabOffset, | 
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| 190 | count, tabStops)); | 
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| 191 | } | 
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| 192 | Status SetTrimming(StringTrimming trimming) | 
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| 193 | { | 
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| 194 | return updateStatus(DllExports::GdipSetStringFormatTrimming( | 
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| 195 | nativeStringFormat, trimming)); | 
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| 196 | } | 
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| 197 |  | 
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| 198 | private: | 
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| 199 | StringFormat(GpStringFormat *stringFormat, Status status): | 
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| 200 | nativeStringFormat(stringFormat), lastStatus(status) {} | 
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| 201 | StringFormat(const StringFormat&); | 
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| 202 | StringFormat& operator=(const StringFormat&); | 
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| 203 |  | 
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| 204 | Status updateStatus(Status newStatus) const | 
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| 205 | { | 
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| 206 | if (newStatus != Ok) lastStatus = newStatus; | 
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| 207 | return newStatus; | 
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| 208 | } | 
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| 209 |  | 
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| 210 | GpStringFormat *nativeStringFormat; | 
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| 211 | mutable Status lastStatus; | 
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| 212 | }; | 
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| 213 |  | 
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| 214 |  | 
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| 215 | // FIXME: do StringFormat::GenericDefault() et al. need to be thread safe? | 
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| 216 | // FIXME: maybe put this in gdiplus.c? | 
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| 217 |  | 
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| 218 | extern "C" void *_GdipStringFormatCachedGenericDefault; | 
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| 219 | extern "C" void *_GdipStringFormatCachedGenericTypographic; | 
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| 220 |  | 
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| 221 | __inline__ const StringFormat* StringFormat::GenericDefault() | 
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| 222 | { | 
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| 223 | if (!_GdipStringFormatCachedGenericDefault) { | 
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| 224 | GpStringFormat *nativeStringFormat = 0; | 
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| 225 | Status status = DllExports::GdipStringFormatGetGenericDefault( | 
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| 226 | &nativeStringFormat); | 
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| 227 | if (status == Ok && nativeStringFormat) { | 
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| 228 | _GdipStringFormatCachedGenericDefault = (void*) | 
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| 229 | new StringFormat(nativeStringFormat, Ok); | 
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| 230 | } | 
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| 231 | } | 
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| 232 | return (StringFormat*) _GdipStringFormatCachedGenericDefault; | 
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| 233 | } | 
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| 234 |  | 
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| 235 | __inline__ const StringFormat* StringFormat::GenericTypographic() | 
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| 236 | { | 
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| 237 | if (!_GdipStringFormatCachedGenericTypographic) { | 
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| 238 | GpStringFormat *nativeStringFormat = 0; | 
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| 239 | Status status = DllExports::GdipStringFormatGetGenericTypographic( | 
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| 240 | &nativeStringFormat); | 
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| 241 | if (status == Ok && nativeStringFormat) { | 
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| 242 | _GdipStringFormatCachedGenericTypographic = (void*) | 
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| 243 | new StringFormat(nativeStringFormat, Ok); | 
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| 244 | } | 
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| 245 | } | 
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| 246 | return (StringFormat*) _GdipStringFormatCachedGenericTypographic; | 
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| 247 | } | 
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| 248 |  | 
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| 249 |  | 
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| 250 |  | 
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| 251 | #endif /* __GDIPLUS_STRINGFORMAT_H */ | 
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