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1 | /* |
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2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 | * |
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4 | * Copyright 2014 Olaf Wintermann. All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions are met: |
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8 | * |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 | * POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |
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29 | #import <stdio.h> |
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30 | #import <stdlib.h> |
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31 | #import <string.h> |
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32 | |
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33 | #import "text.h" |
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34 | #import "container.h" |
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35 | |
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36 | @implementation TextChangeMgr |
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37 | |
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38 | - (TextChangeMgr*)initWithValue:(UiText*)text context:(UiContext*)ctx { |
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39 | value = text; |
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40 | context = ctx; |
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41 | last_length = 0; |
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42 | return self; |
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43 | } |
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44 | |
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45 | - (NSUndoManager*)undoManagerForTextView:(NSTextView*)textview { |
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46 | return (NSUndoManager*)value->undomgr; |
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47 | } |
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48 | |
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49 | - (NSRange)textView:(NSTextView *)textview |
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50 | willChangeSelectionFromCharacterRange:(NSRange)oldrange |
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51 | toCharacterRange:(NSRange)newrange |
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52 | { |
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53 | if(newrange.length != last_length) { |
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54 | if(newrange.length == 0) { |
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55 | ui_unset_group(context, UI_GROUP_SELECTION); |
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56 | } else { |
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57 | ui_set_group(context, UI_GROUP_SELECTION); |
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58 | } |
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59 | } |
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60 | |
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61 | last_length = newrange.length; |
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62 | return newrange; |
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63 | } |
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64 | |
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65 | @end |
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66 | |
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67 | |
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68 | UIWIDGET ui_textarea(UiObject *obj, UiText *value) { |
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69 | UiContainer *ct = uic_get_current_container(obj); |
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70 | |
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71 | NSRect frame = ct->getframe(ct); |
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72 | |
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73 | NSScrollView *scrollview = [[NSScrollView alloc] initWithFrame:frame]; |
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74 | [scrollview setHasVerticalScroller:YES]; |
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75 | //[scrollvew setHasHorizontalScroller:YES]; |
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76 | [scrollview setBorderType:NSNoBorder]; |
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77 | //[scrollview setAutoresizingMask:NSViewWidthSizable|NSViewHeightSizable]; |
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78 | |
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79 | //frame.size.width = frame.size.width - 15; |
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80 | NSTextView *textview = [[NSTextView alloc]initWithFrame:frame]; |
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81 | [textview setAllowsUndo:TRUE]; |
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82 | [textview setAutoresizingMask:NSViewWidthSizable|NSViewHeightSizable]; |
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83 | |
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84 | [textview setFont:[NSFont fontWithName:@"Menlo" size:12]]; |
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85 | |
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86 | [scrollview setDocumentView:textview]; |
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87 | |
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88 | ct->add(ct, scrollview); |
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89 | |
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90 | // bind value |
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91 | if(value) { |
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92 | value->get = ui_textarea_get; |
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93 | value->set = ui_textarea_set; |
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94 | value->getsubstr = ui_textarea_getsubstr; |
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95 | value->insert = ui_textarea_insert; |
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96 | value->position = ui_textarea_position; |
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97 | value->selection = ui_textarea_selection; |
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98 | value->length = ui_textarea_length; |
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99 | value->value = NULL; |
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100 | value->obj = textview; |
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101 | |
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102 | TextChangeMgr *delegate = [[TextChangeMgr alloc]initWithValue:value context:obj->ctx]; |
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103 | [textview setDelegate:delegate]; |
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104 | |
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105 | NSUndoManager *undomgr = [[NSUndoManager alloc]init]; |
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106 | value->undomgr = undomgr; |
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107 | } |
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108 | |
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109 | return textview; |
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110 | } |
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111 | |
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112 | char* ui_textarea_get(UiText *text) { |
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113 | if(text->value) { |
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114 | free(text->value); |
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115 | } |
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116 | NSTextView *textview = (NSTextView*)text->obj; |
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117 | NSString *str = [[textview textStorage]string]; |
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118 | size_t length = [str lengthOfBytesUsingEncoding:NSUTF8StringEncoding]; |
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119 | const char *cstr = [str UTF8String]; |
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120 | char *value = malloc(length + 1); |
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121 | memcpy(value, cstr, length); |
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122 | value[length] = '\0'; |
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123 | text->value = value; |
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124 | return value; |
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125 | } |
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126 | |
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127 | void ui_textarea_set(UiText *text, char *str) { |
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128 | if(text->value) { |
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129 | free(text->value); |
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130 | } |
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131 | NSTextView *textview = (NSTextView*)text->obj; |
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132 | NSString *s = [[NSString alloc]initWithUTF8String:str]; |
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133 | NSAttributedString *as = [[NSAttributedString alloc]initWithString:s]; |
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134 | [[textview textStorage] setAttributedString:as]; |
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135 | text->value = NULL; |
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136 | } |
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137 | |
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138 | char* ui_textarea_getsubstr(UiText *text, int begin, int end) { |
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139 | if(text->value) { |
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140 | free(text->value); |
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141 | } |
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142 | NSTextView *textview = (NSTextView*)text->obj; |
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143 | NSString *str = [[textview textStorage]string]; |
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144 | NSRange range; |
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145 | range.location = begin; |
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146 | range.length = end - begin; |
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147 | |
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148 | NSString *substr = [str substringWithRange:range]; |
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149 | size_t length = [substr lengthOfBytesUsingEncoding:NSUTF8StringEncoding]; |
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150 | const char *cstr = [substr UTF8String]; |
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151 | char *value = malloc(length + 1); |
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152 | memcpy(value, cstr, length); |
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153 | value[length] = '\0'; |
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154 | text->value = value; |
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155 | return value; |
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156 | } |
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157 | |
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158 | void ui_textarea_insert(UiText *text, int pos, char *str) { |
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159 | if(text->value) { |
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160 | free(text->value); |
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161 | } |
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162 | NSTextView *textview = (NSTextView*)text->obj; |
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163 | NSString *s = [[NSString alloc]initWithUTF8String:str]; |
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164 | NSAttributedString *as = [[NSAttributedString alloc]initWithString:s]; |
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165 | [[textview textStorage] insertAttributedString:as atIndex: pos]; |
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166 | text->value = NULL; |
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167 | } |
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168 | |
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169 | int ui_textarea_position(UiText *text) { |
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170 | return [[[(NSTextView*)text->obj selectedRanges] objectAtIndex:0] rangeValue].location; |
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171 | } |
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172 | |
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173 | void ui_textarea_selection(UiText *text, int *begin, int *end) { |
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174 | NSRange range = [[[(NSTextView*)text->obj selectedRanges] objectAtIndex:0] rangeValue]; |
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175 | *begin = range.location; |
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176 | *end = range.location + range.length; |
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177 | } |
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178 | |
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179 | int ui_textarea_length(UiText *text) { |
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180 | return [[(NSTextView*)text->obj textStorage] length]; |
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181 | } |
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182 | |
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183 | void ui_text_undo(UiText *text) { |
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184 | [(NSUndoManager*)text->undomgr undo]; |
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185 | } |
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186 | |
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187 | void ui_text_redo(UiText *text) { |
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188 | [(NSUndoManager*)text->undomgr redo]; |
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189 | } |
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190 |