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commonMain.org.jetbrains.skia.TextLine.kt Maven / Gradle / Ivy
package org.jetbrains.skia
import org.jetbrains.skia.impl.*
import org.jetbrains.skia.shaper.*
class TextLine internal constructor(ptr: NativePointer) : Managed(ptr, _FinalizerHolder.PTR) {
companion object {
fun make(text: String?, font: Font?): TextLine {
return make(text, font, ShapingOptions.DEFAULT)
}
fun make(text: String?, font: Font?, opts: ShapingOptions?): TextLine {
return Shaper.makeShapeDontWrapOrReorder().use { shaper -> shaper.shapeLine(text, font, opts!!) }
}
init {
Library.staticLoad()
}
}
private object _FinalizerHolder {
val PTR = TextLine_nGetFinalizer()
}
/**
* distance to reserve above baseline, typically negative
*/
val ascent: Float
get() {
Stats.onNativeCall()
return try {
_nGetAscent(_ptr)
} finally {
reachabilityBarrier(this)
}
}
/**
* height of an upper-case letter, zero if unknown, typically negative
*/
val capHeight: Float
get() {
Stats.onNativeCall()
return try {
_nGetCapHeight(_ptr)
} finally {
reachabilityBarrier(this)
}
}
/**
* height of lower-case 'x', zero if unknown, typically negative
*/
val xHeight: Float
get() {
Stats.onNativeCall()
return try {
_nGetXHeight(_ptr)
} finally {
reachabilityBarrier(this)
}
}
/**
* distance to reserve below baseline, typically positive
*/
val descent: Float
get() {
Stats.onNativeCall()
return try {
_nGetDescent(_ptr)
} finally {
reachabilityBarrier(this)
}
}
/**
* distance to add between lines, typically positive or zero
*/
val leading: Float
get() {
Stats.onNativeCall()
return try {
_nGetLeading(_ptr)
} finally {
reachabilityBarrier(this)
}
}
val width: Float
get() {
Stats.onNativeCall()
return try {
TextLine_nGetWidth(_ptr)
} finally {
reachabilityBarrier(this)
}
}
val height: Float
get() {
Stats.onNativeCall()
return try {
TextLine_nGetHeight(_ptr)
} finally {
reachabilityBarrier(this)
}
}
val textBlob: TextBlob?
get() {
Stats.onNativeCall()
return try {
val res = _nGetTextBlob(_ptr)
if (res == NullPointer) null else TextBlob(res)
} finally {
reachabilityBarrier(this)
}
}
val glyphs: ShortArray
get() {
Stats.onNativeCall()
return try {
val length = glyphsLength
withResult(ShortArray(length)) {
TextLine_nGetGlyphs(_ptr, it, length)
}
} finally {
reachabilityBarrier(this)
}
}
internal val glyphsLength: Int
get() {
Stats.onNativeCall()
return try {
TextLine_nGetGlyphsLength(_ptr)
} finally {
reachabilityBarrier(this)
}
}
/**
* @return [x0, y0, x1, y1, ...]
*/
val positions: FloatArray
get() {
Stats.onNativeCall()
return try {
withResult(FloatArray(glyphsLength * 2)) {
TextLine_nGetPositions(_ptr, it)
}
} finally {
reachabilityBarrier(this)
}
}
internal val runPositions: FloatArray?
get() {
Stats.onNativeCall()
return try {
withResult(FloatArray(_nGetRunPositionsCount(_ptr))) {
_nGetRunPositions(_ptr, it)
}
} finally {
reachabilityBarrier(this)
}
}
internal val breakPositions: FloatArray?
get() {
Stats.onNativeCall()
return try {
withResult(FloatArray(_nGetBreakPositionsCount(_ptr))) {
_nGetBreakPositions(_ptr, it)
}
} finally {
reachabilityBarrier(this)
}
}
internal val breakOffsets: IntArray
get() {
Stats.onNativeCall()
return try {
withResult(IntArray(_nGetBreakOffsetsCount(_ptr))) {
_nGetBreakOffsets(_ptr, it)
}
} finally {
reachabilityBarrier(this)
}
}
/**
* @param x coordinate in px
* @return UTF-16 offset of glyph
*/
fun getOffsetAtCoord(x: Float): Int {
return try {
Stats.onNativeCall()
_nGetOffsetAtCoord(_ptr, x)
} finally {
reachabilityBarrier(this)
}
}
/**
* @param x coordinate in px
* @return UTF-16 offset of glyph strictly left of coord
*/
fun getLeftOffsetAtCoord(x: Float): Int {
return try {
Stats.onNativeCall()
_nGetLeftOffsetAtCoord(_ptr, x)
} finally {
reachabilityBarrier(this)
}
}
/**
* @param offset UTF-16 character offset
* @return glyph coordinate
*/
fun getCoordAtOffset(offset: Int): Float {
return try {
Stats.onNativeCall()
_nGetCoordAtOffset(_ptr, offset)
} 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.
*
* @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.
*
* @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? {
try {
textBlob!!.use { blob -> return blob.getIntercepts(lowerBound, upperBound, paint) }
} finally {
reachabilityBarrier(this)
reachabilityBarrier(paint)
}
}
}
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetFinalizer")
private external fun TextLine_nGetFinalizer(): NativePointer
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetWidth")
private external fun TextLine_nGetWidth(ptr: NativePointer): Float
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetHeight")
private external fun TextLine_nGetHeight(ptr: NativePointer): Float
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetGlyphsLength")
private external fun TextLine_nGetGlyphsLength(ptr: NativePointer): Int
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetGlyphs")
private external fun TextLine_nGetGlyphs(ptr: NativePointer, resultGlyphs: InteropPointer, resultLength: Int)
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetPositions")
private external fun TextLine_nGetPositions(ptr: NativePointer, resultArray: InteropPointer)
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetAscent")
private external fun _nGetAscent(ptr: NativePointer): Float
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetCapHeight")
private external fun _nGetCapHeight(ptr: NativePointer): Float
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetXHeight")
private external fun _nGetXHeight(ptr: NativePointer): Float
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetDescent")
private external fun _nGetDescent(ptr: NativePointer): Float
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetLeading")
private external fun _nGetLeading(ptr: NativePointer): Float
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetTextBlob")
private external fun _nGetTextBlob(ptr: NativePointer): NativePointer
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetRunPositions")
private external fun _nGetRunPositions(ptr: NativePointer, resultArray: InteropPointer)
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetRunPositionsCount")
private external fun _nGetRunPositionsCount(ptr: NativePointer): Int
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetBreakPositionsCount")
private external fun _nGetBreakPositionsCount(ptr: NativePointer): Int
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetBreakPositions")
private external fun _nGetBreakPositions(ptr: NativePointer, result: InteropPointer)
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetBreakOffsetsCount")
private external fun _nGetBreakOffsetsCount(ptr: NativePointer): Int
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetBreakOffsets")
private external fun _nGetBreakOffsets(ptr: NativePointer, result: InteropPointer)
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetOffsetAtCoord")
private external fun _nGetOffsetAtCoord(ptr: NativePointer, x: Float): Int
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetLeftOffsetAtCoord")
private external fun _nGetLeftOffsetAtCoord(ptr: NativePointer, x: Float): Int
@ExternalSymbolName("org_jetbrains_skia_TextLine__1nGetCoordAtOffset")
private external fun _nGetCoordAtOffset(ptr: NativePointer, offset: Int): Float
