wesley/swiftui-math
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add layout info to MathImage

Browse Source 
This makes it possible to align images generated by MathImage alongside text, in an AttributedString for example.
This commit is contained in:
Daniel Resnick
2025-05-16 18:34:39 -06:00
parent 28184a044c
commit a73bf8d3f1
2 changed files with 20 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
Tests/SwiftMathTests/MathImageTests.swift
View File

@@ -21,6 +21,7 @@ final class MathImageTests: XCTestCase {
let result = SwiftMathImageResult.useMathImage(latex: latex, font: mathfont, fontSize: fontsize)
XCTAssertNil(result.error)
XCTAssertNotNil(result.image)
XCTAssertNotNil(result.layoutInfo)
if result.error == nil, let image = result.image, let imageData = image.pngData() {
safeImage(fileName: "test", pngData: imageData)
let fileUrl = URL(fileURLWithPath: NSTemporaryDirectory())
@@ -38,6 +39,7 @@ final class MathImageTests: XCTestCase {
result = SwiftMathImageResult.useMathImage(latex: latex, font: mathfont, fontSize: fontsize)
XCTAssertNil(result.error)
XCTAssertNotNil(result.image)
XCTAssertNotNil(result.layoutInfo)
if result.error == nil, let image = result.image, let imageData = image.pngData() {
safeImage(fileName: "\(caseNumber)", pngData: imageData)
//let fileUrl = URL(fileURLWithPath: NSTemporaryDirectory())
@@ -87,6 +89,7 @@ final class MathImageTests: XCTestCase {
let result = SwiftMathImageResult.useMathImage(latex: latex, font: mathfont, fontSize: fontsize)
XCTAssertNil(result.error)
XCTAssertNotNil(result.image)
XCTAssertNotNil(result.layoutInfo)
if result.error == nil, let image = result.image, let imageData = image.pngData() {
self?.safeImage(fileName: "\(count)", pngData: imageData)
}
@@ -114,6 +117,7 @@ final class MathImageTests: XCTestCase {
public struct SwiftMathImageResult {
let error: NSError?
let image: MTImage?
let layoutInfo: MathImage.LayoutInfo?
}
extension SwiftMathImageResult {
public static func useMTMathImage(latex: String, font: MathFont, fontSize: CGFloat, textColor: MTColor = MTColor.black) -> SwiftMathImageResult {
@@ -123,7 +127,7 @@ extension SwiftMathImageResult {
labelMode: .text, textAlignment: alignment)
formatter.font = font.mtfont(size: fontSize)
let (error, image) = formatter.asImage()
return SwiftMathImageResult(error: error, image: image)
return SwiftMathImageResult(error: error, image: image, layoutInfo: nil)
}
public static func useMathImage(latex: String, font: MathFont, fontSize: CGFloat, textColor: MTColor = MTColor.black) -> SwiftMathImageResult {
let alignment = MTTextAlignment.left
@@ -131,8 +135,8 @@ extension SwiftMathImageResult {
textColor: textColor,
labelMode: .text, textAlignment: alignment)
formatter.font = font
let (error, image) = formatter.asImage()
return SwiftMathImageResult(error: error, image: image)
let (error, image, layoutInfo) = formatter.asImage()
return SwiftMathImageResult(error: error, image: image, layoutInfo: layoutInfo)
}
}
#if os(macOS)