ui/cocoa/text.m

Sun, 16 Jun 2024 11:36:27 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 16 Jun 2024 11:36:27 +0200
changeset 42
9af327d0e0e4
parent 0
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permissions
-rw-r--r--

update toolkit

0
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Olaf Wintermann <olaf.wintermann@gmail.com>
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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

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