1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
// Copyright (C) 2016 The Qt Company Ltd.
// Copyright (c) Meta Platforms, Inc. and affiliates.
//
// SPDX-License-Identifier: MIT
#ifdef DEBUG
#include <stdarg.h>
#include <yoga/YGEnums.h>
#include "YGNodePrint.h"
#include "YGNode.h"
#include "Yoga-internal.h"
#include "Utils.h"
namespace facebook {
namespace yoga {
typedef std::string string;
static void indent(string& base, uint32_t level) {
for (uint32_t i = 0; i < level; ++i) {
base.append(" ");
}
}
static bool areFourValuesEqual(const YGStyle::Edges& four) {
return YGValueEqual(four[0], four[1]) && YGValueEqual(four[0], four[2]) &&
YGValueEqual(four[0], four[3]);
}
static void appendFormattedString(string& str, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
va_list argsCopy;
va_copy(argsCopy, args);
std::vector<char> buf(1 + vsnprintf(NULL, 0, fmt, args));
va_end(args);
vsnprintf(buf.data(), buf.size(), fmt, argsCopy);
va_end(argsCopy);
string result = string(buf.begin(), buf.end() - 1);
str.append(result);
}
static void appendFloatOptionalIfDefined(
string& base,
const string key,
const YGFloatOptional num) {
if (!num.isUndefined()) {
appendFormattedString(base, "%s: %g; ", key.c_str(), num.unwrap());
}
}
static void appendNumberIfNotUndefined(
string& base,
const string key,
const YGValue number) {
if (number.unit != YGUnitUndefined) {
if (number.unit == YGUnitAuto) {
base.append(key + ": auto; ");
} else {
string unit = number.unit == YGUnitPoint ? "px" : "%%";
appendFormattedString(
base, "%s: %g%s; ", key.c_str(), number.value, unit.c_str());
}
}
}
static void appendNumberIfNotAuto(
string& base,
const string& key,
const YGValue number) {
if (number.unit != YGUnitAuto) {
appendNumberIfNotUndefined(base, key, number);
}
}
static void appendNumberIfNotZero(
string& base,
const string& str,
const YGValue number) {
if (number.unit == YGUnitAuto) {
base.append(str + ": auto; ");
} else if (!YGFloatsEqual(number.value, 0)) {
appendNumberIfNotUndefined(base, str, number);
}
}
static void appendEdges(
string& base,
const string& key,
const YGStyle::Edges& edges) {
if (areFourValuesEqual(edges)) {
auto edgeValue = YGNode::computeEdgeValueForColumn(
edges, YGEdgeLeft, detail::CompactValue::ofZero());
appendNumberIfNotZero(base, key, edgeValue);
} else {
for (int edge = YGEdgeLeft; edge != YGEdgeAll; ++edge) {
string str = key + "-" + YGEdgeToString(static_cast<YGEdge>(edge));
appendNumberIfNotZero(base, str, edges[edge]);
}
}
}
static void appendEdgeIfNotUndefined(
string& base,
const string& str,
const YGStyle::Edges& edges,
const YGEdge edge) {
// TODO: this doesn't take RTL / YGEdgeStart / YGEdgeEnd into account
auto value = (edge == YGEdgeLeft || edge == YGEdgeRight)
? YGNode::computeEdgeValueForRow(
edges, edge, edge, detail::CompactValue::ofUndefined())
: YGNode::computeEdgeValueForColumn(
edges, edge, detail::CompactValue::ofUndefined());
appendNumberIfNotUndefined(base, str, value);
}
void YGNodeToString(
std::string& str,
YGNodeRef node,
YGPrintOptions options,
uint32_t level) {
indent(str, level);
appendFormattedString(str, "<div ");
if (options & YGPrintOptionsLayout) {
appendFormattedString(str, "layout=\"");
appendFormattedString(
str, "width: %g; ", node->getLayout().dimensions[YGDimensionWidth]);
appendFormattedString(
str, "height: %g; ", node->getLayout().dimensions[YGDimensionHeight]);
appendFormattedString(
str, "top: %g; ", node->getLayout().position[YGEdgeTop]);
appendFormattedString(
str, "left: %g;", node->getLayout().position[YGEdgeLeft]);
appendFormattedString(str, "\" ");
}
if (options & YGPrintOptionsStyle) {
appendFormattedString(str, "style=\"");
const auto& style = node->getStyle();
if (style.flexDirection() != YGNode().getStyle().flexDirection()) {
appendFormattedString(
str,
"flex-direction: %s; ",
YGFlexDirectionToString(style.flexDirection()));
}
if (style.justifyContent() != YGNode().getStyle().justifyContent()) {
appendFormattedString(
str,
"justify-content: %s; ",
YGJustifyToString(style.justifyContent()));
}
if (style.alignItems() != YGNode().getStyle().alignItems()) {
appendFormattedString(
str, "align-items: %s; ", YGAlignToString(style.alignItems()));
}
if (style.alignContent() != YGNode().getStyle().alignContent()) {
appendFormattedString(
str, "align-content: %s; ", YGAlignToString(style.alignContent()));
}
if (style.alignSelf() != YGNode().getStyle().alignSelf()) {
appendFormattedString(
str, "align-self: %s; ", YGAlignToString(style.alignSelf()));
}
appendFloatOptionalIfDefined(str, "flex-grow", style.flexGrow());
appendFloatOptionalIfDefined(str, "flex-shrink", style.flexShrink());
appendNumberIfNotAuto(str, "flex-basis", style.flexBasis());
appendFloatOptionalIfDefined(str, "flex", style.flex());
if (style.flexWrap() != YGNode().getStyle().flexWrap()) {
appendFormattedString(
str, "flex-wrap: %s; ", YGWrapToString(style.flexWrap()));
}
if (style.overflow() != YGNode().getStyle().overflow()) {
appendFormattedString(
str, "overflow: %s; ", YGOverflowToString(style.overflow()));
}
if (style.display() != YGNode().getStyle().display()) {
appendFormattedString(
str, "display: %s; ", YGDisplayToString(style.display()));
}
appendEdges(str, "margin", style.margin());
appendEdges(str, "padding", style.padding());
appendEdges(str, "border", style.border());
if (YGNode::computeColumnGap(
style.gap(), detail::CompactValue::ofUndefined()) !=
YGNode::computeColumnGap(
YGNode().getStyle().gap(), detail::CompactValue::ofUndefined())) {
appendNumberIfNotUndefined(
str, "column-gap", style.gap()[YGGutterColumn]);
}
if (YGNode::computeRowGap(
style.gap(), detail::CompactValue::ofUndefined()) !=
YGNode::computeRowGap(
YGNode().getStyle().gap(), detail::CompactValue::ofUndefined())) {
appendNumberIfNotUndefined(str, "row-gap", style.gap()[YGGutterRow]);
}
appendNumberIfNotAuto(str, "width", style.dimensions()[YGDimensionWidth]);
appendNumberIfNotAuto(str, "height", style.dimensions()[YGDimensionHeight]);
appendNumberIfNotAuto(
str, "max-width", style.maxDimensions()[YGDimensionWidth]);
appendNumberIfNotAuto(
str, "max-height", style.maxDimensions()[YGDimensionHeight]);
appendNumberIfNotAuto(
str, "min-width", style.minDimensions()[YGDimensionWidth]);
appendNumberIfNotAuto(
str, "min-height", style.minDimensions()[YGDimensionHeight]);
if (style.positionType() != YGNode().getStyle().positionType()) {
appendFormattedString(
str, "position: %s; ", YGPositionTypeToString(style.positionType()));
}
appendEdgeIfNotUndefined(str, "left", style.position(), YGEdgeLeft);
appendEdgeIfNotUndefined(str, "right", style.position(), YGEdgeRight);
appendEdgeIfNotUndefined(str, "top", style.position(), YGEdgeTop);
appendEdgeIfNotUndefined(str, "bottom", style.position(), YGEdgeBottom);
appendFormattedString(str, "\" ");
if (node->hasMeasureFunc()) {
appendFormattedString(str, "has-custom-measure=\"true\"");
}
}
appendFormattedString(str, ">");
const uint32_t childCount = static_cast<uint32_t>(node->getChildren().size());
if (options & YGPrintOptionsChildren && childCount > 0) {
for (uint32_t i = 0; i < childCount; i++) {
appendFormattedString(str, "\n");
YGNodeToString(str, YGNodeGetChild(node, i), options, level + 1);
}
appendFormattedString(str, "\n");
indent(str, level);
}
appendFormattedString(str, "</div>");
}
} // namespace yoga
} // namespace facebook
#endif
|
