CssParseServer.java
14.2 KB
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
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
package com.bckefu.excel.html.css;
import com.bckefu.excel.html.entity.HtmlCssConstant;
import com.bckefu.excel.html.entity.style.CellStyleBorderEntity;
import com.bckefu.excel.html.entity.style.CellStyleEntity;
import com.bckefu.excel.html.entity.style.CssStyleFontEnity;
import com.bckefu.excel.util.PoiCssUtils;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static com.bckefu.excel.html.entity.HtmlCssConstant.*;
/**
* 把Css样式解析成对应的Model
*/
public class CssParseServer {
private static final Logger log = LoggerFactory.getLogger(CssParseServer.class);
private static final Pattern STYLE_PATTERN = Pattern.compile("(?:^|\\s+)(italic|oblique)(?:\\s+|$)");
private static final Pattern WEIGHT_PATTERN = Pattern.compile("(?:^|\\s+)(bold(?:er)?|[7-9]00)(?:\\s+|$)");
@SuppressWarnings("serial")
private final static Set<String> BORDER_STYLES = new HashSet<String>() {
{
// Specifies no border
add(HtmlCssConstant.NONE);
// The same as "none", except in border conflict resolution for table elements
add(HtmlCssConstant.HIDDEN);
// Specifies a dotted border
add(HtmlCssConstant.DOTTED);
// Specifies a dashed border
add(HtmlCssConstant.DASHED);
// Specifies a solid border
add(HtmlCssConstant.SOLID);
// Specifies a double border
add(HtmlCssConstant.DOUBLE);
}
};
public CellStyleEntity parseStyle(String style) {
Map<String, String> mapStyle = new HashMap<String, String>();
for (String s : style.split("\\s*;\\s*")) {
if (StringUtils.isNotBlank(s)) {
String[] ss = s.split("\\s*\\:\\s*");
if (ss.length == 2 && StringUtils.isNotBlank(ss[0])
&& StringUtils.isNotBlank(ss[1])) {
String attrName = ss[0].toLowerCase();
String attrValue = ss[1];
// do not change font name
if (!HtmlCssConstant.FONT.equals(attrName) && !HtmlCssConstant.FONT_FAMILY.equals(attrName)) {
attrValue = attrValue.toLowerCase();
}
mapStyle.put(attrName, attrValue);
}
}
}
parseFontAttr(mapStyle);
parseBackground(mapStyle);
parseBorder(mapStyle);
return mapToCellStyleEntity(mapStyle);
}
private CellStyleEntity mapToCellStyleEntity(Map<String, String> mapStyle) {
CellStyleEntity entity = new CellStyleEntity();
entity.setAlign(mapStyle.get(HtmlCssConstant.TEXT_ALIGN));
entity.setVetical(mapStyle.get(HtmlCssConstant.VETICAL_ALIGN));
entity.setBackground(parseBackground(mapStyle));
entity.setHeight(mapStyle.get(HEIGHT));
entity.setWidth(mapStyle.get(WIDTH));
entity.setFont(getCssStyleFontEnity(mapStyle));
entity.setBackground(mapStyle.get(BACKGROUND_COLOR));
entity.setBorder(getCssStyleBorderEntity(mapStyle));
return entity;
}
private CellStyleBorderEntity getCssStyleBorderEntity(Map<String, String> mapStyle) {
CellStyleBorderEntity border = new CellStyleBorderEntity();
border.setBorderTopColor(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.TOP + "-" + HtmlCssConstant.COLOR));
border.setBorderBottomColor(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.BOTTOM + "-" + HtmlCssConstant.COLOR));
border.setBorderLeftColor(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.LEFT + "-" + HtmlCssConstant.COLOR));
border.setBorderRightColor(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.RIGHT + "-" + HtmlCssConstant.COLOR));
border.setBorderTopWidth(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.TOP + "-" + WIDTH));
border.setBorderBottomWidth(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.BOTTOM + "-" + WIDTH));
border.setBorderLeftWidth(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.LEFT + "-" + WIDTH));
border.setBorderRightWidth(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.RIGHT + "-" + WIDTH));
border.setBorderTopStyle(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.TOP + "-" + HtmlCssConstant.STYLE));
border.setBorderBottomStyle(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.BOTTOM + "-" + HtmlCssConstant.STYLE));
border.setBorderLeftStyle(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.LEFT + "-" + HtmlCssConstant.STYLE));
border.setBorderRightStyle(mapStyle.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.RIGHT + "-" + HtmlCssConstant.STYLE));
return border;
}
private CssStyleFontEnity getCssStyleFontEnity(Map<String, String> style) {
CssStyleFontEnity font = new CssStyleFontEnity();
font.setStyle(style.get(HtmlCssConstant.FONT_STYLE));
int fontSize = PoiCssUtils.getInt(style.get(HtmlCssConstant.FONT_SIZE));
if (fontSize > 0) {
font.setSize(fontSize);
}
font.setWeight(style.get(HtmlCssConstant.FONT_WEIGHT));
font.setFamily(style.get(HtmlCssConstant.FONT_FAMILY));
font.setDecoration(style.get(HtmlCssConstant.TEXT_DECORATION));
font.setColor(style.get(HtmlCssConstant.COLOR));
return font;
}
public void parseBorder(Map<String, String> style) {
for (String pos : new String[]{null, HtmlCssConstant.TOP, HtmlCssConstant.RIGHT, HtmlCssConstant.BOTTOM, HtmlCssConstant.LEFT}) {
// border[-attr]
if (pos == null) {
setBorderAttr(style, pos, style.get(HtmlCssConstant.BORDER));
setBorderAttr(style, pos, style.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.COLOR));
setBorderAttr(style, pos, style.get(HtmlCssConstant.BORDER + "-" + WIDTH));
setBorderAttr(style, pos, style.get(HtmlCssConstant.BORDER + "-" + HtmlCssConstant.STYLE));
}
// border-pos[-attr]
else {
setBorderAttr(style, pos, style.get(HtmlCssConstant.BORDER + "-" + pos));
for (String attr : new String[]{HtmlCssConstant.COLOR, WIDTH, HtmlCssConstant.STYLE}) {
String attrName = HtmlCssConstant.BORDER + "-" + pos + "-" + attr;
String attrValue = style.get(attrName);
if (StringUtils.isNotBlank(attrValue)) {
style.put(attrName, attrValue);
}
}
}
}
}
private void setBorderAttr(Map<String, String> mapBorder, String pos, String value) {
if (StringUtils.isNotBlank(value)) {
String borderColor = null;
for (String borderAttr : value.split("\\s+")) {
if ((borderColor = PoiCssUtils.processColor(borderAttr)) != null) {
setBorderAttr(mapBorder, pos, HtmlCssConstant.COLOR, borderColor);
} else if (PoiCssUtils.isNum(borderAttr)) {
setBorderAttr(mapBorder, pos, WIDTH, borderAttr);
} else if (BORDER_STYLES.contains(borderAttr)) {
setBorderAttr(mapBorder, pos, HtmlCssConstant.STYLE, borderAttr);
} else {
log.info("Border Attr [{}] Is Not Suppoted.", borderAttr);
}
}
}
}
private void setBorderAttr(Map<String, String> mapBorder, String pos, String attr,
String value) {
if (StringUtils.isNotBlank(pos)) {
mapBorder.put(HtmlCssConstant.BORDER + "-" + pos + "-" + attr, value);
} else {
for (String name : new String[]{HtmlCssConstant.TOP, HtmlCssConstant.RIGHT, HtmlCssConstant.BOTTOM, HtmlCssConstant.LEFT}) {
mapBorder.put(HtmlCssConstant.BORDER + "-" + name + "-" + attr, value);
}
}
}
private void parseFontAttr(Map<String, String> mapRtn) {
log.debug("Parse Font Style.");
// color
String color = PoiCssUtils.processColor(mapRtn.get(HtmlCssConstant.COLOR));
if (StringUtils.isNotBlank(color)) {
log.debug("Text Color [{}] Found.", color);
mapRtn.put(HtmlCssConstant.COLOR, color);
}
// font
String font = mapRtn.get(HtmlCssConstant.FONT);
if (StringUtils.isNotBlank(font)
&& !ArrayUtils.contains(new String[]{"small-caps", "caption", "icon", "menu",
"message-box", "small-caption", "status-bar"},
font)) {
log.debug("Parse Font Attr [{}].", font);
String[] ignoreStyles = new String[]{"normal",
// font weight normal
"[1-3]00"};
StringBuffer sbFont = new StringBuffer(
font.replaceAll("^|\\s*" + StringUtils.join(ignoreStyles, "|") + "\\s+|$", " "));
log.debug("Font Attr [{}] After Process Ingore.", sbFont);
// style
Matcher m = STYLE_PATTERN.matcher(sbFont.toString());
if (m.find()) {
sbFont.setLength(0);
if (log.isDebugEnabled()) {
log.debug("Font Style [{}] Found.", m.group(1));
}
mapRtn.put(HtmlCssConstant.FONT_STYLE, HtmlCssConstant.ITALIC);
m.appendReplacement(sbFont, " ");
m.appendTail(sbFont);
}
// weight
m = WEIGHT_PATTERN.matcher(sbFont.toString());
if (m.find()) {
sbFont.setLength(0);
if (log.isDebugEnabled()) {
log.debug("Font Weight [{}](bold) Found.", m.group(1));
}
mapRtn.put(HtmlCssConstant.FONT_WEIGHT, HtmlCssConstant.BOLD);
m.appendReplacement(sbFont, " ");
m.appendTail(sbFont);
}
// size xx-small | x-small | small | medium | large | x-large | xx-large | 18px [/2]
m = Pattern.compile(
// before blank or start
new StringBuilder("(?:^|\\s+)")
// font size
.append("(xx-small|x-small|small|medium|large|x-large|xx-large|").append("(?:")
.append(HtmlCssConstant.PATTERN_LENGTH).append("))")
// line height
.append("(?:\\s*\\/\\s*(").append(HtmlCssConstant.PATTERN_LENGTH).append("))?")
// after blank or end
.append("(?:\\s+|$)").toString())
.matcher(sbFont.toString());
if (m.find()) {
sbFont.setLength(0);
log.debug("Font Size[/line-height] [{}] Found.", m.group());
String fontSize = m.group(1);
if (StringUtils.isNotBlank(fontSize)) {
fontSize = StringUtils.deleteWhitespace(fontSize);
log.debug("Font Size [{}].", fontSize);
if (fontSize.matches(HtmlCssConstant.PATTERN_LENGTH)) {
mapRtn.put(HtmlCssConstant.FONT_SIZE, fontSize);
} else {
log.info("Font Size [{}] Not Supported, Ignore.", fontSize);
}
}
String lineHeight = m.group(2);
if (StringUtils.isNotBlank(lineHeight)) {
log.info("Line Height [{}] Not Supported, Ignore.", lineHeight);
}
m.appendReplacement(sbFont, " ");
m.appendTail(sbFont);
}
// font family
if (sbFont.length() > 0) {
log.debug("Font Families [{}].", sbFont);
// trim & remove '"
String fontFamily = sbFont.toString().split("\\s*,\\s*")[0].trim()
.replaceAll("'|\"", "");
log.debug("Use First Font Family [{}].", fontFamily);
mapRtn.put(HtmlCssConstant.FONT_FAMILY, fontFamily);
}
}
font = mapRtn.get(HtmlCssConstant.FONT_STYLE);
if (ArrayUtils.contains(new String[]{HtmlCssConstant.ITALIC, "oblique"}, font)) {
log.debug("Font Italic [{}] Found.", font);
mapRtn.put(HtmlCssConstant.FONT_STYLE, HtmlCssConstant.ITALIC);
}
font = mapRtn.get(HtmlCssConstant.FONT_WEIGHT);
if (StringUtils.isNotBlank(font) && Pattern.matches("^bold(?:er)?|[7-9]00$", font)) {
log.debug("Font Weight [{}](bold) Found.", font);
mapRtn.put(HtmlCssConstant.FONT_WEIGHT, HtmlCssConstant.BOLD);
}
font = mapRtn.get(HtmlCssConstant.FONT_SIZE);
if (!PoiCssUtils.isNum(font)) {
log.debug("Font Size [{}] Error.", font);
mapRtn.remove(HtmlCssConstant.FONT_SIZE);
}
}
private String parseBackground(Map<String, String> style) {
String bg = style.get(HtmlCssConstant.BACKGROUND);
String bgColor = null;
if (StringUtils.isNotBlank(bg)) {
for (String bgAttr : bg.split("(?<=\\)|\\w|%)\\s+(?=\\w)")) {
if ((bgColor = PoiCssUtils.processColor(bgAttr)) != null) {
style.put(BACKGROUND_COLOR, bgColor);
break;
}
}
}
bg = style.get(BACKGROUND_COLOR);
if (StringUtils.isNotBlank(bg) && (bgColor = PoiCssUtils.processColor(bg)) != null) {
style.put(BACKGROUND_COLOR, bgColor);
}
if (bgColor != null) {
bgColor = style.get(BACKGROUND_COLOR);
if ("#ffffff".equals(bgColor)) {
style.remove(BACKGROUND_COLOR);
}
}
return null;
}
}