[orx-shapes] Add shapesFromText

orx-shapes/build.gradle.kts

@@ -54,3 +54,4 @@ kotlin {
         }
     }
 }
+

orx-shapes/src/commonMain/kotlin/text/TextShapes.kt

@@ -0,0 +1,29 @@
+package org.openrndr.extra.shapes.text
+
+import org.openrndr.draw.font.Face
+import org.openrndr.math.Vector2
+import org.openrndr.math.transforms.buildTransform
+import org.openrndr.shape.Shape
+
+fun shapesFromText(face: Face, text: String, size: Double, position: Vector2 = Vector2.ZERO): List<Shape> {
+    var cursor = position
+    return text.windowed(2, 1, partialWindows = true) {
+
+        if (it[0] == '\n') {
+            cursor = Vector2(position.x, cursor.y + face.lineSpace(size))
+            Shape.EMPTY
+        } else {
+
+            val glyph = face.glyphForCharacter(it.first())
+            val shape = glyph.shape(size).transform(buildTransform {
+                translate(cursor)
+            })
+            if (it.length == 2) {
+                cursor += Vector2(face.kernAdvance(size, it[0], it[1]), 0.0)
+            }
+            cursor += Vector2(glyph.advanceWidth(size), 0.0)
+            shape
+        }
+    }.filter { !it.empty }
+}
+

orx-shapes/src/jvmDemo/kotlin/DemoText01.kt

@@ -0,0 +1,31 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.font.loadFace
+import org.openrndr.extra.shapes.bounds.bounds
+import org.openrndr.extra.shapes.text.shapesFromText
+import org.openrndr.math.Vector2
+import java.io.File
+
+fun main() {
+    application {
+
+        configure {
+            width = 720
+            height = 720
+        }
+        program {
+
+            val face =
+                loadFace("https://github.com/IBM/plex/raw/master/IBM-Plex-Mono/fonts/complete/otf/IBMPlexMono-Bold.otf")
+            val shapes = shapesFromText(face, "SUCH\nVECTOR\nSUCH\nTEXT", 150.0)
+
+            val bounds = shapes.bounds
+            extend {
+                drawer.clear(ColorRGBa.PINK)
+                drawer.translate(-bounds.corner)
+                drawer.translate((width - bounds.width) / 2.0, (height - bounds.height) / 2.0)
+                drawer.shapes(shapes)
+            }
+        }
+    }
+}