librsvg source for verification 2026-05-22

rsvg/tests/fixtures/text/bug1109-scaled-text-anchor-middle.svg

@@ -0,0 +1,27 @@
+<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
+  <rect width="100%" height="100%" fill="white"/>
+
+  <g transform="matrix(2 0 0 3 100 136)">
+    <!-- Explanation of the transform above:
+
+         The bug is about text-anchor="middle" not working properly when there is a
+         transform with scaling.
+
+         So, we create a transform with horizontal scaling 2, and vertical scaling 3.
+         Then we translate by 100 pixels horizontally (200/2 of the viewBox width), and
+         136 pixels vertically, because of the following:
+
+         In the Ahem font, each glyph is a square - https://web-platform-tests.org/writing-tests/ahem.html
+
+         The ascent above the baseline is 0.8em, and the descent below the baseline
+         is 0.2em.  So, at font-size=40 it means the top is 0.8*40 = 32 units above the baseline.  Since
+         the vertical scaling factor is 3, we translate by 32*3=96 pixels in the Y axis, plus an additional
+         (200 - (40 * 3)) / 2 = 40 pixels, thus adding up to the 136 pixels in the transform above.
+
+         The vertical translation will center the glyph vertically in the available space.
+
+         The bug is about the glyph not being horizontally centered in the available space.
+    -->
+    <text x="0" y="0" fill="black" font-family="Ahem" font-size="40" text-anchor="middle">W</text>
+ </g>
+</svg>