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 |
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