ui/cocoa/GridLayout.m

Wed, 04 Dec 2024 08:55:49 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Wed, 04 Dec 2024 08:55:49 +0100
branch
newapi
changeset 404
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permissions
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add first working cocoa code

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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 2024 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 "GridLayout.h"
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30
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31
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32
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33 @implementation GridLayout
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34
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35 @synthesize label=_label;
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36 @synthesize uilayout=_uilayout;
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37 @synthesize newline=_newline;
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38
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39 - (GridLayout*)init {
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40 self = [super init];
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41 _columnspacing = 0;
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42 _rowspacing = 0;
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43 _children = cxArrayListCreateSimple(sizeof(GridElm), 32);
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44
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45 return self;
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46 }
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47
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48 /*
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49 - (void) layout {
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50 [super layout];
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51
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52 NSRect r1 = _test.frame;
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53 NSSize s1 = _test.intrinsicContentSize;
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54 NSEdgeInsets e1 = _test.alignmentRectInsets;
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55
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56 printf("fuck\n");
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57 }
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58 */
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59
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60
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61 - (void) layout {
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62 int ncols = _cols+1;
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63 int nrows = _rows+1;
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64
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65 GridDef *coldef = calloc(ncols, sizeof(GridDef));
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66 GridDef *rowdef = calloc(nrows, sizeof(GridDef));
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67
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68 NSRect viewFrame = self.frame;
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69
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70 int colspacing = _columnspacing;
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71 int rowspacing = _rowspacing;
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72
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73 CxIterator i = cxListIterator(_children);
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74 cx_foreach(GridElm *, elm, i) {
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75 NSSize size = elm->view.intrinsicContentSize;
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76 NSEdgeInsets alignment = elm->view.alignmentRectInsets;
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77 if(size.width != NSViewNoIntrinsicMetric) {
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78 CGFloat width = size.width + alignment.left + alignment.right;
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79 if(width > coldef[elm->x].preferred_size) {
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80 coldef[elm->x].preferred_size = width;
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81 }
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82 }
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83 if(size.height != NSViewNoIntrinsicMetric) {
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84 CGFloat height = size.height + alignment.top + alignment.right;
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85 //CGFloat height = size.height;
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86 if(height > rowdef[elm->y].preferred_size) {
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87 rowdef[elm->y].preferred_size = height;
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88 }
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89 }
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90
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91 if(elm->hexpand) {
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92 coldef[elm->x].extend = TRUE;
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93 }
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94 if(elm->vexpand) {
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95 rowdef[elm->y].extend = TRUE;
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96 }
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97 }
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98
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99 int col_ext = 0;
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100 int row_ext = 0;
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101
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102 int preferred_width = 0;
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103 int preferred_height = 0;
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104 for(int j=0;j<ncols;j++) {
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105 preferred_width += coldef[j].preferred_size + colspacing;
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106 if(coldef[j].extend) {
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107 col_ext++;
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108 }
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109 }
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110 for(int j=0;j<nrows;j++) {
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111 preferred_height += rowdef[j].preferred_size + rowspacing;
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112 if(rowdef[j].extend) {
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113 row_ext++;
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114 }
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115 }
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116
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117 _preferredSize.width = preferred_width;
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118 _preferredSize.height = preferred_height;
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119
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120
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121 int hremaining = viewFrame.size.width - preferred_width;
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122 int vremaining = viewFrame.size.height - preferred_height;
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123 int hext = hremaining/col_ext;
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124 int vext = vremaining/row_ext;
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125
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126 for(int j=0;j<ncols;j++) {
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127 GridDef *col = &coldef[j];
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128 if(col->extend) {
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129 col->size = col->preferred_size + hext;
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130 } else {
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131 col->size = col->preferred_size;
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132 }
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133 }
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134 for(int j=0;j<nrows;j++) {
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135 GridDef *row = &rowdef[j];
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136 if(row->extend) {
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137 row->size = row->preferred_size + vext;
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138 } else {
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139 row->size = row->preferred_size;
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140 }
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141 }
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142
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143 int pos = 0;
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144 for(int j=0;j<ncols;j++) {
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145 coldef[j].pos = pos;
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146 pos += coldef[j].size + colspacing;
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147 }
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148 pos = 0;
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149 for(int j=0;j<nrows;j++) {
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150 rowdef[j].pos = pos;
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151 pos += rowdef[j].size + rowspacing;
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152 }
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153
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154 i = cxListIterator(_children);
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155 cx_foreach(GridElm *, elm, i) {
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156 //NSSize size = elm->view.intrinsicContentSize;
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157 GridDef *col = &coldef[elm->x];
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158 GridDef *row = &rowdef[elm->y];
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159
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160 NSEdgeInsets alignment = elm->view.alignmentRectInsets;
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161 NSRect frame;
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162 frame.size.width = col->size;
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163 frame.size.height = row->size;
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164 frame.origin.x = col->pos - (alignment.left+alignment.right)/2;
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165 frame.origin.y = viewFrame.size.height - row->pos - frame.size.height + ((alignment.top+alignment.right)/2);
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166 elm->view.frame = frame;
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167 }
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168
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169 free(coldef);
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170 free(rowdef);
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171 }
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172
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173
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174 - (NSSize)intrinsicContentSize {
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175 return self.preferredSize;
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176 }
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177
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178 - (void) addView:(NSView*)view fill:(BOOL)fill {
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179 if(_newline) {
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180 _y++;
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181 _x = 0;
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182 _newline = FALSE;
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183 }
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184
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185 GridElm elm;
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186 elm.x = _x;
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187 elm.y = _y;
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188 elm.margin = 0;
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189 elm.colspan = _uilayout.colspan;
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190 elm.rowspan = _uilayout.rowspan;
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191 elm.hfill = _uilayout.hfill;
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192 elm.vfill = _uilayout.vfill;
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193 elm.hexpand = _uilayout.hexpand;
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194 elm.vexpand = _uilayout.vexpand;
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195 elm.view = view;
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196 cxListAdd(_children, &elm);
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197
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198 [self addSubview:view];
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199 self.needsLayout = YES;
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200
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201 if(_x > _cols) {
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202 _cols = _x;
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203 }
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204 if(_y > _rows) {
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205 _rows = _y;
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206 }
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207 _x++;
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208 }
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209
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210 - (void) dealloc {
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211 cxListDestroy(_children);
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212 }
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213
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214 @end

mercurial