gitea/legado
gitea/legado
1
1
Fork 0
mirror of https://github.com/gedoor/legado.git synced 2024-06-30 23:06:46 +08:00
Code Issues Packages Projects Releases Wiki Activity

优化复合字体轮廓数据结构

Browse Source
This commit is contained in:
Antecer 2024-06-20 10:57:02 +08:00
parent d6c2b5eceb
commit 576a370da1
1 changed files with 19 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
app/src/main/java/io/legado/app/model/analyzeRule/QueryTTF.java
View File

@ -773,12 +773,12 @@ public class QueryTTF {
var dataTable = directorys.get("glyf");
assert dataTable != null;
int glyfCount = maxp.numGlyphs;
glyfArray = new GlyfLayout[glyfCount + 1]; // 创建容器时，多创建一个作为保留区
glyfArray = new GlyfLayout[glyfCount]; // 创建字形容器
var reader = new BufferReader(buffer, 0);
for (int index = 1; index <= glyfCount; index++) {
if (loca[index - 1] == loca[index]) continue; // 当前loca与下一个loca相同，表示这个字形不存在
int offset = dataTable.offset + loca[index - 1];
for (int index = 0; index < glyfCount; index++) {
if (loca[index] == loca[index + 1]) continue; // 当前loca与下一个loca相同，表示这个字形不存在
int offset = dataTable.offset + loca[index];
// 读GlyphHeaders
var glyph = new GlyfLayout();
reader.position(offset);
@ -893,7 +893,7 @@ public class QueryTTF {
if ((glyphTableComponent.flags & 0x20) == 0) break;
}
}
glyfArray[index] = glyph; // 根据文档 glyfId=0 作为保留区使用，这里赋值从索引1开始
glyfArray[index] = glyph;
}
}
@ -919,7 +919,15 @@ public class QueryTTF {
// 复合字形
LinkedList<String> glyphIdList = new LinkedList<>();
for (var g : glyph.glyphComponent) {
glyphIdList.add(String.valueOf(g.glyphIndex));
glyphIdList.add("{" +
"flags:" + g.flags + "," +
"glyphIndex:" + g.glyphIndex + "," +
"arg1:" + g.argument1 + "," +
"arg2:" + g.argument2 + "," +
"xScale:" + g.xScale + "," +
"scale01:" + g.scale01 + "," +
"scale10:" + g.scale10 + "," +
"yScale:" + g.yScale + "}");
}
glyphString = "[" + String.join(",", glyphIdList) + "]";
}
@ -965,10 +973,11 @@ public class QueryTTF {
int glyfArrayLength = glyfArray.length;
for (var item : unicodeToGlyphId.entrySet()) {
int key = item.getKey();
int val = item.getValue() + 1; // glyphArray已根据TTF文档将索引0作为保留位，这里从1开始索引
int val = item.getValue();
if (val >= glyfArrayLength) continue;
String glyfString = getGlyfById(val);
unicodeToGlyph.put(key, glyfString);
if (glyfString == null) continue; // null 不能用作hashmap的key
glyphToUnicode.put(glyfString, key);
}
// Log.i("QueryTTF", "字体处理完成");
@ -986,8 +995,8 @@ public class QueryTTF {
*/
public int getGlyfIdByUnicode(int unicode) {
var result = unicodeToGlyphId.get(unicode);
if (result == null) return 0;
return result + 1; // 根据TTF文档，轮廓索引的定义从1开始
if (result == null) return 0; // 如果找不到Unicode对应的轮廓索引，就返回默认值0
return result;
}
/**
@ -1008,7 +1017,7 @@ public class QueryTTF {
*/
public int getUnicodeByGlyf(String glyph) {
var result = glyphToUnicode.get(glyph);
if (result == null) return 0;
if (result == null) return 0; // 如果轮廓数据找不到对应的Unicode，就返回默认值0
return result;
}