diff --git a/app/src/main/java/io/legado/app/model/analyzeRule/QueryTTF.kt b/app/src/main/java/io/legado/app/model/analyzeRule/QueryTTF.kt
index 02fcb2e3e..710fdbe16 100644
--- a/app/src/main/java/io/legado/app/model/analyzeRule/QueryTTF.kt
+++ b/app/src/main/java/io/legado/app/model/analyzeRule/QueryTTF.kt
@@ -9,6 +9,7 @@ import kotlin.experimental.and
* @see 获取详情
* @see 基于Javascript的TTF解析器
*/
+@ExperimentalUnsignedTypes
class QueryTTF(var Font: ByteArray) : JsExtensions {
private class Header {
var majorVersion: UShort = 0u
@@ -95,7 +96,7 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
var offset: UInt = 0u
}
- private class CmapFormat0 {
+ private class CmapFormat0 {
var format: UShort = 0u
var length: UShort = 0u
var language: UShort = 0u
@@ -152,12 +153,12 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
private class ByteArrayReader(var Buffer: ByteArray, var Index: Int) {
fun ReadUIntX(len: Long): ULong {
- var result: ULong = 0u;
+ var result: ULong = 0u
for (i in 0 until len) {
- result.shl(8);
+ result.shl(8)
result = result or Buffer[Index++].toULong()
}
- return result;
+ return result
}
fun ReadUInt64(): ULong {
@@ -203,7 +204,7 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
for (i in 0 until len) {
result[i] = Buffer[Index++]
}
- return result;
+ return result
}
fun GetUInt16Array(len: Int): ArrayList {
@@ -212,7 +213,7 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
for (i in 0 until len) {
result[i] = ReadUInt16()
}
- return result;
+ return result
}
fun GetInt16Array(len: Int): ArrayList {
@@ -221,7 +222,7 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
for (i in 0 until len) {
result[i] = ReadInt16()
}
- return result;
+ return result
}
}
@@ -240,15 +241,15 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
FontReader = ByteArrayReader(Font, 0)
// 获取文件头
fileHeader.majorVersion = FontReader.ReadUInt16()
- fileHeader.minorVersion = FontReader.ReadUInt16();
- fileHeader.numOfTables = FontReader.ReadUInt16();
- fileHeader.searchRange = FontReader.ReadUInt16();
- fileHeader.entrySelector = FontReader.ReadUInt16();
- fileHeader.rangeShift = FontReader.ReadUInt16();
+ fileHeader.minorVersion = FontReader.ReadUInt16()
+ fileHeader.numOfTables = FontReader.ReadUInt16()
+ fileHeader.searchRange = FontReader.ReadUInt16()
+ fileHeader.entrySelector = FontReader.ReadUInt16()
+ fileHeader.rangeShift = FontReader.ReadUInt16()
// 获取目录
for (i in 0 until fileHeader.numOfTables.toInt()) {
val tag = FontReader.ReadStrings(4, Charsets.US_ASCII)
- val t = Directory();
+ val t = Directory()
t.tag = tag
t.checkSum = FontReader.ReadUInt32()
t.offset = FontReader.ReadUInt32()
@@ -258,10 +259,10 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
// 解析表 name (字体信息,包含版权、名称、作者等...)
for (Temp in directorys) {
if (Temp.tag == "name") {
- FontReader.Index = Temp.offset.toInt();
- name.format = FontReader.ReadUInt16();
- name.count = FontReader.ReadUInt16();
- name.stringOffset = FontReader.ReadUInt16();
+ FontReader.Index = Temp.offset.toInt()
+ name.format = FontReader.ReadUInt16()
+ name.count = FontReader.ReadUInt16()
+ name.stringOffset = FontReader.ReadUInt16()
for (i in 0 until name.count.toInt()) {
val record = NameRecord()
@@ -271,54 +272,54 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
record.nameID = FontReader.ReadUInt16()
record.length = FontReader.ReadUInt16()
record.offset = FontReader.ReadUInt16()
- name.records.add(record);
+ name.records.add(record)
}
}
}
// 解析表 head (获取 head.indexToLocFormat)
for (Temp in directorys) {
if (Temp.tag == "head") {
- FontReader.Index = Temp.offset.toInt();
- head.majorVersion = FontReader.ReadUInt16();
- head.minorVersion = FontReader.ReadUInt16();
- head.fontRevision = FontReader.ReadUInt32();
- head.checkSumAdjustment = FontReader.ReadUInt32();
- head.magicNumber = FontReader.ReadUInt32();
- head.flags = FontReader.ReadUInt16();
- head.unitsPerEm = FontReader.ReadUInt16();
- head.created = FontReader.ReadUInt64();
- head.modified = FontReader.ReadUInt64();
- head.xMin = FontReader.ReadInt16();
- head.yMin = FontReader.ReadInt16();
- head.xMax = FontReader.ReadInt16();
- head.yMax = FontReader.ReadInt16();
- head.macStyle = FontReader.ReadUInt16();
- head.lowestRecPPEM = FontReader.ReadUInt16();
- head.fontDirectionHint = FontReader.ReadInt16();
- head.indexToLocFormat = FontReader.ReadInt16();
- head.glyphDataFormat = FontReader.ReadInt16();
+ FontReader.Index = Temp.offset.toInt()
+ head.majorVersion = FontReader.ReadUInt16()
+ head.minorVersion = FontReader.ReadUInt16()
+ head.fontRevision = FontReader.ReadUInt32()
+ head.checkSumAdjustment = FontReader.ReadUInt32()
+ head.magicNumber = FontReader.ReadUInt32()
+ head.flags = FontReader.ReadUInt16()
+ head.unitsPerEm = FontReader.ReadUInt16()
+ head.created = FontReader.ReadUInt64()
+ head.modified = FontReader.ReadUInt64()
+ head.xMin = FontReader.ReadInt16()
+ head.yMin = FontReader.ReadInt16()
+ head.xMax = FontReader.ReadInt16()
+ head.yMax = FontReader.ReadInt16()
+ head.macStyle = FontReader.ReadUInt16()
+ head.lowestRecPPEM = FontReader.ReadUInt16()
+ head.fontDirectionHint = FontReader.ReadInt16()
+ head.indexToLocFormat = FontReader.ReadInt16()
+ head.glyphDataFormat = FontReader.ReadInt16()
}
}
// 解析表 maxp (获取 maxp.numGlyphs)
for (Temp in directorys) {
if (Temp.tag == "maxp") {
- FontReader.Index = Temp.offset.toInt();
- maxp.majorVersion = FontReader.ReadUInt16();
- maxp.minorVersion = FontReader.ReadUInt16();
- maxp.numGlyphs = FontReader.ReadUInt16();
- maxp.maxPoints = FontReader.ReadUInt16();
- maxp.maxContours = FontReader.ReadUInt16();
- maxp.maxCompositePoints = FontReader.ReadUInt16();
- maxp.maxCompositeContours = FontReader.ReadUInt16();
- maxp.maxZones = FontReader.ReadUInt16();
- maxp.maxTwilightPoints = FontReader.ReadUInt16();
- maxp.maxStorage = FontReader.ReadUInt16();
- maxp.maxFunctionDefs = FontReader.ReadUInt16();
- maxp.maxInstructionDefs = FontReader.ReadUInt16();
- maxp.maxStackElements = FontReader.ReadUInt16();
- maxp.maxSizeOfInstructions = FontReader.ReadUInt16();
- maxp.maxComponentElements = FontReader.ReadUInt16();
- maxp.maxComponentDepth = FontReader.ReadUInt16();
+ FontReader.Index = Temp.offset.toInt()
+ maxp.majorVersion = FontReader.ReadUInt16()
+ maxp.minorVersion = FontReader.ReadUInt16()
+ maxp.numGlyphs = FontReader.ReadUInt16()
+ maxp.maxPoints = FontReader.ReadUInt16()
+ maxp.maxContours = FontReader.ReadUInt16()
+ maxp.maxCompositePoints = FontReader.ReadUInt16()
+ maxp.maxCompositeContours = FontReader.ReadUInt16()
+ maxp.maxZones = FontReader.ReadUInt16()
+ maxp.maxTwilightPoints = FontReader.ReadUInt16()
+ maxp.maxStorage = FontReader.ReadUInt16()
+ maxp.maxFunctionDefs = FontReader.ReadUInt16()
+ maxp.maxInstructionDefs = FontReader.ReadUInt16()
+ maxp.maxStackElements = FontReader.ReadUInt16()
+ maxp.maxSizeOfInstructions = FontReader.ReadUInt16()
+ maxp.maxComponentElements = FontReader.ReadUInt16()
+ maxp.maxComponentDepth = FontReader.ReadUInt16()
}
}
// 解析表 loca (轮廓数据偏移地址表)
@@ -348,13 +349,13 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
cmap.records.add(record)
}
for (i in 0 until cmap.numTables.toInt()) {
- val fmtOffset = cmap.records[i].offset;
- FontReader.Index = (Temp.offset + fmtOffset).toInt();
- val EndIndex = FontReader.Index;
+ val fmtOffset = cmap.records[i].offset
+ FontReader.Index = (Temp.offset + fmtOffset).toInt()
+ val EndIndex = FontReader.Index
- val format = FontReader.ReadUInt16();
+ val format = FontReader.ReadUInt16()
- if (cmap.tables.contains(fmtOffset.toInt())) continue;
+ if (cmap.tables.contains(fmtOffset.toInt())) continue
when {
format.equals(0) -> {
val fmt = CmapFormat0()
@@ -395,10 +396,10 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
format.equals(12) -> {
val fmt = CmapFormat12()
fmt.format = format
- fmt.reserved = FontReader.ReadUInt16();
- fmt.length = FontReader.ReadUInt32();
- fmt.language = FontReader.ReadUInt32();
- fmt.numGroups = FontReader.ReadUInt32();
+ fmt.reserved = FontReader.ReadUInt16()
+ fmt.length = FontReader.ReadUInt32()
+ fmt.language = FontReader.ReadUInt32()
+ fmt.numGroups = FontReader.ReadUInt32()
for (n in 0 until fmt.numGroups.toLong()) {
fmt.groups.add(Triple(FontReader.ReadUInt32(), FontReader.ReadUInt32(), FontReader.ReadUInt32()))
}
@@ -430,7 +431,7 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
g.flags = ArrayList(flagLength)
var n = 0
while (n < flagLength) {
- g.flags[n] = FontReader.GetByte();
+ g.flags[n] = FontReader.GetByte()
if ((g.flags[n].and(0x08)).toInt() != 0x00) {
for (m in FontReader.GetByte() downTo 1) {
g.flags[++n] = g.flags[n - 1]
@@ -462,12 +463,12 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
// 相对坐标转绝对坐标 (因不绘制字体,这里用不上)
for(m in 1 until flagLength)
{
- g.xCoordinates[m] = (g.xCoordinates[m] + g.xCoordinates[m - 1]).toShort();
- g.yCoordinates[m] = (g.yCoordinates[m] + g.yCoordinates[m - 1]).toShort();
+ g.xCoordinates[m] = (g.xCoordinates[m] + g.xCoordinates[m - 1]).toShort()
+ g.yCoordinates[m] = (g.yCoordinates[m] + g.yCoordinates[m - 1]).toShort()
}
*/
- glyf.add(g);
+ glyf.add(g)
} else {
// 复合字体暂未使用
}
@@ -478,12 +479,12 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
// 建立Unicode&Glyf映射表
for (i in 0..130000) {
val gid = GetGlyfIndex(i).toInt()
- if (gid == 0) continue;
+ if (gid == 0) continue
if (unicodeMap.containsKey(gid)) continue
val thisGlyf = ArrayList()
thisGlyf.addAll(glyf[gid].xCoordinates)
thisGlyf.addAll(glyf[gid].yCoordinates)
- unicodeMap[i] = thisGlyf;
+ unicodeMap[i] = thisGlyf
}
}
@@ -494,76 +495,78 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
*/
fun GetNameById(nameId: Int = 1): String {
for (Temp in directorys) {
- if (Temp.tag != "name") continue;
- FontReader.Index = Temp.offset.toInt();
- break;
+ if (Temp.tag != "name") continue
+ FontReader.Index = Temp.offset.toInt()
+ break
}
for (record in name.records) {
- if (record.nameID.toInt() != nameId) continue;
- FontReader.Index = FontReader.Index + (name.stringOffset + record.offset).toInt();
- return FontReader.ReadStrings(record.length.toInt(), if (record.platformID.toInt() == 1) Charsets.UTF_8 else Charsets.UTF_16BE);
+ if (record.nameID.toInt() != nameId) continue
+ FontReader.Index = FontReader.Index + (name.stringOffset + record.offset).toInt()
+ return FontReader.ReadStrings(record.length.toInt(), if (record.platformID.toInt() == 1) Charsets.UTF_8 else Charsets.UTF_16BE)
}
- return "error";
+ return "error"
}
var pps = arrayListOf>(Pair(3u, 10u), Pair(0u, 4u), Pair(3u, 1u), Pair(1u, 0u), Pair(0u, 3u), Pair(0u, 1u))
+
/**
* 使用Unicode值查找轮廓索引
*/
private fun GetGlyfIndex(code: Int): Long {
- var fmtKey: UInt = 0u;
- for (record in cmap.records) {
- for (item in pps) {
+ if (code == 0) return 0
+ var fmtKey: UInt = 0u
+ for (item in pps) {
+ for (record in cmap.records) {
if ((item.first == record.platformID) && (item.second == record.encodingID)) {
- fmtKey = record.offset;
- break;
+ fmtKey = record.offset
+ break
}
}
- if (fmtKey > 0u) break;
+ if (fmtKey > 0u) break
}
- if (fmtKey == 0u) return 0;
+ if (fmtKey == 0u) return 0
- var glyfID: Long = 0;
+ var glyfID: Long = 0
if (cmap.tables[fmtKey] is CmapFormat0) {
val tab = cmap.tables[fmtKey] as CmapFormat0
- if (code >= tab.glyphIdArray.size) glyfID = 0;
- else glyfID = tab.glyphIdArray[code].toLong();
+ if (code >= tab.glyphIdArray.size) glyfID = 0
+ else glyfID = tab.glyphIdArray[code].toLong()
} else if (cmap.tables[fmtKey] is CmapFormat4) {
val tab = cmap.tables[fmtKey] as CmapFormat4
- if (code > tab.endCode.last().toInt()) return 0;
+ if (code > tab.endCode.last().toInt()) return 0
// 二分法查找数值索引
var start = 0
var middle: Int
- var end = tab.endCode.size - 1;
- while (start + 1 != end) {
- middle = (start + end) / 2;
- if (tab.endCode[middle] <= code.toUInt()) start = middle;
- else end = middle;
+ var end = tab.endCode.size - 1
+ while (start + 1 < end) {
+ middle = (start + end) / 2
+ if (tab.endCode[middle] <= code.toUInt()) start = middle
+ else end = middle
}
- if (tab.endCode[start] < code.toUInt()) ++start;
- if (code.toUInt() < tab.startCode[start]) return 0;
+ if (tab.endCode[start] < code.toUInt()) ++start
+ if (code.toUInt() < tab.startCode[start]) return 0
glyfID = if (tab.idRangeOffset[start].toInt() != 0) {
- tab.glyphIdArray[code - tab.startCode[start].toInt() + (tab.idRangeOffset[start].toInt() / 2) - (tab.idRangeOffset.size - start)].toLong();
- } else (code + tab.idDelta[start]).toLong();
+ tab.glyphIdArray[code - tab.startCode[start].toInt() + (tab.idRangeOffset[start].toInt() / 2) - (tab.idRangeOffset.size - start)].toLong()
+ } else (code + tab.idDelta[start]).toLong()
glyfID = glyfID.and(0xFFFF)
} else if (cmap.tables[fmtKey] is CmapFormat6) {
val tab = cmap.tables[fmtKey] as CmapFormat6
- val index = code - tab.firstCode.toInt();
+ val index = code - tab.firstCode.toInt()
glyfID = if (index < 0 || index >= tab.glyphIdArray.size) 0 else tab.glyphIdArray[index].toLong()
} else if (cmap.tables[fmtKey] is CmapFormat12) {
- val tab = (cmap.tables[fmtKey] as CmapFormat12);
- if (code > tab.groups.last().second.toInt()) return 0;
+ val tab = (cmap.tables[fmtKey] as CmapFormat12)
+ if (code > tab.groups.last().second.toInt()) return 0
// 二分法查找数值索引
var start = 0
var middle: Int
- var end = tab.groups.size - 1;
- while (start + 1 != end) {
- middle = (start + end) / 2;
- if (tab.groups[middle].first.toInt() <= code) start = middle;
- else end = middle;
+ var end = tab.groups.size - 1
+ while (start + 1 < end) {
+ middle = (start + end) / 2
+ if (tab.groups[middle].first.toInt() <= code) start = middle
+ else end = middle
}
if (tab.groups[start].first.toInt() <= code && code <= tab.groups[start].second.toInt()) {
- glyfID = (tab.groups[start].third.toInt() + code - tab.groups[start].first.toInt()).toLong();
+ glyfID = (tab.groups[start].third.toInt() + code - tab.groups[start].first.toInt()).toLong()
}
}
return glyfID
@@ -572,31 +575,28 @@ class QueryTTF(var Font: ByteArray) : JsExtensions {
/**
* 使用轮廓数据获取Unicode值
*/
- public fun GetCodeByGlyf(inputGlyf:List): Int {
- var unicodeVal = 0;
- if(inputGlyf.isEmpty()) return 0;
- for(g in unicodeMap)
- {
- if (inputGlyf.size != g.value.size) continue;
- var isFound = true;
- for(i in inputGlyf.indices)
- {
+ public fun GetCodeByGlyf(inputGlyf: List): Int {
+ var unicodeVal = 0
+ if (inputGlyf.isEmpty()) return 0
+ for (g in unicodeMap) {
+ if (inputGlyf.size != g.value.size) continue
+ var isFound = true
+ for (i in inputGlyf.indices) {
if (inputGlyf[i] != g.value[i]) {
- isFound = false;
- break;
+ isFound = false
+ break
}
}
- if (isFound) unicodeVal = g.key;
+ if (isFound) unicodeVal = g.key
}
- return unicodeVal;
+ return unicodeVal
}
/**
* 使用Unicode值获取轮廓数据
*/
- public fun GetGlyfByCode(code:Int): ArrayList
- {
- if(code <= 0) return ArrayList()
+ public fun GetGlyfByCode(code: Int): ArrayList {
+ if (code <= 0) return ArrayList()
return unicodeMap.getOrDefault(code, ArrayList())
}
}
\ No newline at end of file