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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