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package org.jetbrains.skia
import org.jetbrains.skia.impl.*
import org.jetbrains.skia.impl.Library.Companion.staticLoad
class TextBlob internal constructor(ptr: NativePointer) : Managed(ptr, _FinalizerHolder.PTR) {
companion object {
/**
* Returns a TextBlob built from a single run of text with x-positions and a single y value.
* Returns null if glyphs is empty.
*
* @param glyphs glyphs drawn
* @param xpos array of x-positions, must contain values for all of the glyphs.
* @param ypos shared y-position for each glyph, to be paired with each xpos.
* @param font Font used for this run
* @return new TextBlob or null
*/
fun makeFromPosH(glyphs: ShortArray, xpos: FloatArray, ypos: Float, font: Font?): TextBlob? {
return try {
require(glyphs.size == xpos.size) { "glyphs.length " + glyphs.size + " != xpos.length " + xpos.size }
Stats.onNativeCall()
val ptr = interopScope {
_nMakeFromPosH(
toInterop(glyphs),
glyphs.size,
toInterop(xpos),
ypos,
getPtr(font)
)
}
if (ptr == NullPointer) null else TextBlob(ptr)
} finally {
reachabilityBarrier(font)
}
}
/**
* Returns a TextBlob built from a single run of text with positions.
* Returns null if glyphs is empty.
*
* @param glyphs glyphs drawn
* @param pos array of positions, must contain values for all of the glyphs.
* @param font Font used for this run
* @return new TextBlob or null
*/
fun makeFromPos(glyphs: ShortArray, pos: Array, font: Font?): TextBlob? {
return try {
require(glyphs.size == pos.size) { "glyphs.length " + glyphs.size + " != pos.length " + pos.size }
val floatPos = FloatArray(pos.size * 2)
for (i in pos.indices) {
floatPos[i * 2] = pos[i].x
floatPos[i * 2 + 1] = pos[i].y
}
Stats.onNativeCall()
val ptr =
interopScope {
_nMakeFromPos(toInterop(glyphs), glyphs.size, toInterop(floatPos), getPtr(font))
}
if (ptr == NullPointer) null else TextBlob(ptr)
} finally {
reachabilityBarrier(font)
}
}
fun makeFromRSXform(glyphs: ShortArray, xform: Array, font: Font?): TextBlob? {
return try {
require(glyphs.size == xform.size) { "glyphs.length " + glyphs.size + " != xform.length " + xform.size }
val floatXform = FloatArray(xform.size * 4)
for (i in xform.indices) {
floatXform[i * 4] = xform[i].scos
floatXform[i * 4 + 1] = xform[i].ssin
floatXform[i * 4 + 2] = xform[i].tx
floatXform[i * 4 + 3] = xform[i].ty
}
Stats.onNativeCall()
val ptr = interopScope {
_nMakeFromRSXform(
toInterop(glyphs),
glyphs.size,
toInterop(floatXform),
getPtr(font)
)
}
if (ptr == NullPointer) null else TextBlob(ptr)
} finally {
reachabilityBarrier(font)
}
}
fun makeFromData(data: Data?): TextBlob? {
return try {
Stats.onNativeCall()
val ptr = TextBlob_nMakeFromData(getPtr(data))
if (ptr == NullPointer) null else TextBlob(ptr)
} finally {
reachabilityBarrier(data)
}
}
init {
staticLoad()
}
}
/**
* Returns conservative bounding box. Uses Paint associated with each glyph to
* determine glyph bounds, and unions all bounds. Returned bounds may be
* larger than the bounds of all glyphs in runs.
*
* @return conservative bounding box
*/
val bounds: Rect
get() = try {
Stats.onNativeCall()
Rect.fromInteropPointer {
_nBounds(_ptr, it)
}
} finally {
reachabilityBarrier(this)
}
/**
* Returns a non-zero value unique among all text blobs.
*
* @return identifier for TextBlob
*/
val uniqueId: Int
get() = try {
Stats.onNativeCall()
TextBlob_nGetUniqueId(_ptr)
} finally {
reachabilityBarrier(this)
}
/**
*
* Returns the number of intervals that intersect bounds.
* bounds describes a pair of lines parallel to the text advance.
* The return array size is a multiple of two, and is at most twice the number of glyphs in
* the the blob.
*
*
* Runs within the blob that contain SkRSXform are ignored when computing intercepts.
*
* @param lowerBound lower line parallel to the advance
* @param upperBound upper line parallel to the advance
* @return intersections; may be null
*/
fun getIntercepts(lowerBound: Float, upperBound: Float): FloatArray? {
return getIntercepts(lowerBound, upperBound, null)
}
/**
*
* Returns the number of intervals that intersect bounds.
* bounds describes a pair of lines parallel to the text advance.
* The return array size is a multiple of two, and is at most twice the number of glyphs in
* the the blob.
*
*
* Runs within the blob that contain SkRSXform are ignored when computing intercepts.
*
* @param lowerBound lower line parallel to the advance
* @param upperBound upper line parallel to the advance
* @param paint specifies stroking, PathEffect that affects the result; may be null
* @return intersections; may be null
*/
fun getIntercepts(lowerBound: Float, upperBound: Float, paint: Paint?): FloatArray? {
return try {
Stats.onNativeCall()
withResult(FloatArray(_nGetInterceptsLength(_ptr, lowerBound, upperBound, getPtr(paint)))) {
_nGetIntercepts(
ptr = _ptr,
lower = lowerBound,
upper = upperBound,
paintPtr = getPtr(paint),
resultArray = it
)
}
} finally {
reachabilityBarrier(this)
reachabilityBarrier(paint)
}
}
fun serializeToData(): Data {
return try {
Stats.onNativeCall()
Data(TextBlob_nSerializeToData(_ptr))
} finally {
reachabilityBarrier(this)
}
}
/**
* @return glyph indices for the whole blob
*/
val glyphs: ShortArray
get() = try {
Stats.onNativeCall()
withResult(ShortArray(glyphsLength)) {
_nGetGlyphs(_ptr, it)
}
} finally {
reachabilityBarrier(this)
}
internal val glyphsLength: Int
get() = try {
Stats.onNativeCall()
_nGetGlyphsLength(_ptr)
} finally {
reachabilityBarrier(this)
}
/**
*
* Return result depends on how blob was constructed.
*
* * makeFromPosH returns 1 float per glyph (x pos)
* * makeFromPos returns 2 floats per glyph (x, y pos)
* * makeFromRSXform returns 4 floats per glyph
*
*
*
* Blobs constructed by TextBlobBuilderRunHandler/Shaper default handler have 2 floats per glyph.
*
* @return glyph positions for the blob if it was made with makeFromPos, null otherwise
*/
val positions: FloatArray
get() = try {
Stats.onNativeCall()
withResult(FloatArray(_nGetPositionsLength(_ptr))) {
_nGetPositions(_ptr, it)
}
} finally {
reachabilityBarrier(this)
}
/**
* Only works on TextBlobs that come from TextBlobBuilderRunHandler/Shaper default handler.
*
* @return utf-16 offsets of clusters that start the glyph
* @throws IllegalArgumentException if TextBlob doesn’t have this information
*/
val clusters: IntArray
get() = try {
Stats.onNativeCall()
withNullableResult(IntArray(_nGetClustersLength(_ptr))) {
_nGetClusters(_ptr, it)
} ?: throw IllegalArgumentException()
} finally {
reachabilityBarrier(this)
}
/**
* Only works on TextBlobs that come from TextBlobBuilderRunHandler/Shaper default handler.
*
* @return tight bounds around all the glyphs in the TextBlob
* @throws IllegalArgumentException if TextBlob doesn’t have this information
*/
val tightBounds: Rect
get() = try {
Stats.onNativeCall()
Rect.fromInteropPointerNullable {
_nGetTightBounds(_ptr, it)
} ?: throw IllegalArgumentException()
} finally {
reachabilityBarrier(this)
}
/**
* Only works on TextBlobs that come from TextBlobBuilderRunHandler/Shaper default handler.
*
* @return tight bounds around all the glyphs in the TextBlob
* @throws IllegalArgumentException if TextBlob doesn’t have this information
*/
val blockBounds: Rect
get() = try {
Stats.onNativeCall()
Rect.fromInteropPointerNullable {
_nGetBlockBounds(_ptr, it)
} ?: throw IllegalArgumentException()
} finally {
reachabilityBarrier(this)
}
/**
* Only works on TextBlobs that come from TextBlobBuilderRunHandler/Shaper default handler.
*
* @return first baseline in TextBlob
* @throws IllegalArgumentException if TextBlob doesn’t have this information
*/
val firstBaseline: Float
get() = try {
Stats.onNativeCall()
withNullableResult(FloatArray(1)) {
_nGetFirstBaseline(_ptr, it)
}?.firstOrNull() ?: throw IllegalArgumentException()
} finally {
reachabilityBarrier(this)
}
/**
* Only works on TextBlobs that come from TextBlobBuilderRunHandler/Shaper default handler.
*
* @return last baseline in TextBlob
* @throws IllegalArgumentException if TextBlob doesn’t have this information
*/
val lastBaseline: Float
get() = try {
Stats.onNativeCall()
withNullableResult(FloatArray(1)) {
_nGetLastBaseline(_ptr, it)
}?.firstOrNull() ?: throw IllegalArgumentException()
} finally {
reachabilityBarrier(this)
}
private object _FinalizerHolder {
val PTR = TextBlob_nGetFinalizer()
}
}
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetFinalizer")
private external fun TextBlob_nGetFinalizer(): NativePointer
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetUniqueId")
private external fun TextBlob_nGetUniqueId(ptr: NativePointer): Int
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nSerializeToData")
private external fun TextBlob_nSerializeToData(ptr: NativePointer /*, SkSerialProcs */): NativePointer
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nMakeFromData")
private external fun TextBlob_nMakeFromData(dataPtr: NativePointer /*, SkDeserialProcs */): NativePointer
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nBounds")
private external fun _nBounds(ptr: NativePointer, resultRect: InteropPointer)
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetInterceptsLength")
private external fun _nGetInterceptsLength(ptr: NativePointer, lower: Float, upper: Float, paintPtr: NativePointer): Int
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetIntercepts")
private external fun _nGetIntercepts(ptr: NativePointer, lower: Float, upper: Float, paintPtr: NativePointer, resultArray: InteropPointer)
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nMakeFromPosH")
private external fun _nMakeFromPosH(glyphs: InteropPointer, glyphsLen: Int, xpos: InteropPointer, ypos: Float, fontPtr: NativePointer): NativePointer
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nMakeFromPos")
private external fun _nMakeFromPos(glyphs: InteropPointer, glyphsLen: Int, pos: InteropPointer, fontPtr: NativePointer): NativePointer
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nMakeFromRSXform")
private external fun _nMakeFromRSXform(glyphs: InteropPointer, glyphsLen: Int, xform: InteropPointer, fontPtr: NativePointer): NativePointer
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetGlyphsLength")
private external fun _nGetGlyphsLength(ptr: NativePointer): Int
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetGlyphs")
private external fun _nGetGlyphs(ptr: NativePointer, result: InteropPointer)
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetPositionsLength")
private external fun _nGetPositionsLength(ptr: NativePointer): Int
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetPositions")
private external fun _nGetPositions(ptr: NativePointer, resultArray: InteropPointer)
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetClustersLength")
private external fun _nGetClustersLength(ptr: NativePointer): Int
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetClusters")
private external fun _nGetClusters(ptr: NativePointer, resultArray: InteropPointer): Boolean
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetTightBounds")
private external fun _nGetTightBounds(ptr: NativePointer, resultArray: InteropPointer): Boolean
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetBlockBounds")
private external fun _nGetBlockBounds(ptr: NativePointer, resultArray: InteropPointer): Boolean
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetFirstBaseline")
private external fun _nGetFirstBaseline(ptr: NativePointer, resultArray: InteropPointer): Boolean
@ExternalSymbolName("org_jetbrains_skia_TextBlob__1nGetLastBaseline")
private external fun _nGetLastBaseline(ptr: NativePointer, resultArray: InteropPointer): Boolean
