editor: minor text fixes

There are two bugs this PR fixes:
1. The text style of the ellipsis should be the same as the style of the text that's truncated. This is fixed by passing the styleId to the ellipsis text run.
2. When the text is unwrapped, ellipsis should only happen at the last few characters, instead of the whole line. This is fixed by setting x back to 0.0 after the 'do we need ellipsis' check.

Diffs=
4b7454518f editor: minor text fixes (#8787)

Co-authored-by: Susan Wang <[email protected]>

.rive_head

@@ -1 +1 @@
-de2a5cbf93851ab109846403b5a17701f72e507d
+4b7454518f23f181a02c8a21c95bc0f6b10fb14a

src/text/text.cpp

@@ -176,6 +176,7 @@ bool OrderedLine::buildEllipsisRuns(std::vector<const GlyphRun*>& logicalRuns,
 
     bool ellipsisOverflowed = false;
     startGIndex = line.startGlyphIndex;
+    x = 0.0f;
 
     for (uint32_t i = line.startRunIndex; i < line.endRunIndex + 1; i++)
     {
@@ -189,11 +190,15 @@ bool OrderedLine::buildEllipsisRuns(std::vector<const GlyphRun*>& logicalRuns,
 
             // Get the next shape so we can check if it fits, otherwise keep
             // using the last one.
-            TextRun ellipsisRuns[] = {{ellipsisFont,
-                                       ellipsisFontSize,
-                                       run.lineHeight,
-                                       run.letterSpacing,
-                                       (uint32_t)ellipsisCodePoints.size()}};
+            TextRun ellipsisRuns[] = {{
+                ellipsisFont,
+                ellipsisFontSize,
+                run.lineHeight,
+                run.letterSpacing,
+                (uint32_t)ellipsisCodePoints.size(),
+                0, // default, TextRun.script
+                run.styleId,
+            }};
             auto nextEllipsisShape =
                 ellipsisFont->shapeText(ellipsisCodePoints,
                                         Span<TextRun>(ellipsisRuns, 1));