Fix issue where Roborazzi crash when the font is not available

roborazzi-painter/src/commonJvmMain/kotlin/com/github/takahirom/roborazzi/AwtRoboCanvas.kt

@@ -11,6 +11,7 @@ import java.awt.BasicStroke
 import java.awt.Color
 import java.awt.Font
 import java.awt.Graphics2D
+import java.awt.GraphicsEnvironment
 import java.awt.Rectangle
 import java.awt.RenderingHints
 import java.awt.font.FontRenderContext
@@ -237,9 +238,9 @@ class AwtRoboCanvas(width: Int, height: Int, filled: Boolean, bufferedImageType:
   }
 
   override fun differ(
-      other: RoboCanvas,
-      resizeScale: Double,
-      imageComparator: ImageComparator
+    other: RoboCanvas,
+    resizeScale: Double,
+    imageComparator: ImageComparator
   ): ImageComparator.ComparisonResult {
     other as AwtRoboCanvas
     val otherImage = other.bufferedImage
@@ -443,7 +444,7 @@ class AwtRoboCanvas(width: Int, height: Int, filled: Boolean, bufferedImageType:
               // fill with 4dp margin
               val textMargin = (4 * oneDpPx).toInt()
               // Set size to 12dp
-              val font = Font("Courier New", Font.BOLD, fontSize)
+              val font = getFont(Font.BOLD, fontSize)
               val textLayout = TextLayout(text, font, comparisonImageGraphics.fontRenderContext)
               val bounds = textLayout.bounds
               val rect = Rectangle(
@@ -519,7 +520,8 @@ class AwtRoboCanvas(width: Int, height: Int, filled: Boolean, bufferedImageType:
       for (x in 0 until width) {
         for (y in 0 until height) {
           if (x >= originalImage.width || y >= originalImage.height
-            || x >= comparedImage.width || y >= comparedImage.height) {
+            || x >= comparedImage.width || y >= comparedImage.height
+          ) {
             diffImage.setRGB(x, y, -0x10000)
             continue
           }
@@ -553,9 +555,26 @@ private fun BufferedImage.scale(scale: Double): BufferedImage {
   return after
 }
 
+internal val preferredFontName: String by lazy {
+  getSystemProperty("roborazzi.theme.typography.font.name", "Courier New")
+}
+
+internal fun getFont(style: Int, size: Int): Font {
+  return if (hasPreferredFont) {
+    Font(preferredFontName, style, size)
+  } else {
+    Font(Font.MONOSPACED, style, size)
+  }
+}
+
+internal val hasPreferredFont: Boolean by lazy {
+  GraphicsEnvironment.getLocalGraphicsEnvironment()
+    .availableFontFamilyNames.any { it.equals(preferredFontName, ignoreCase = true) }
+}
+
 private fun <T> BufferedImage.graphics(block: (Graphics2D) -> T): T {
   val graphics = createGraphics()
-  graphics.font = Font("Courier New", Font.BOLD, 12)
+  graphics.font = getFont(Font.BOLD, 12)
   val result = block(graphics)
   graphics.dispose()
   return result

sample-generate-preview-tests/build.gradle.kts

@@ -49,6 +49,7 @@ android {
         it.systemProperties["robolectric.pixelCopyRenderMode"] = "hardware"
         // For large preview
         it.maxHeapSize = "4096m"
+        it.jvmArgs("-noverify")
       }
     }
   }