Improved nvgTextGlyphPositions()

- added glyph min/max x
- fixed first glyph position

src/nanovg.c

@@ -2116,7 +2116,6 @@ int nvgTextGlyphPositions(struct NVGcontext* ctx, float x, float y, const char*
 	struct FONStextIter iter;
 	struct FONSquad q;
 	int npos = 0;
-	float px;
 
 	if (state->fontId == FONS_INVALID) return 0;
 
@@ -2132,12 +2131,12 @@ int nvgTextGlyphPositions(struct NVGcontext* ctx, float x, float y, const char*
 	fonsSetAlign(ctx->fs, state->textAlign);
 	fonsSetFont(ctx->fs, state->fontId);
 
-	px = x*scale;
 	fonsTextIterInit(ctx->fs, &iter, x*scale, y*scale, string, end);
 	while (fonsTextIterNext(ctx->fs, &iter, &q)) {
 		positions[npos].str = iter.str;
-		positions[npos].x = px * invscale;
-		px = iter.x;
+		positions[npos].x = iter.x * invscale;
+		positions[npos].minx = q.x0 * invscale;
+		positions[npos].maxx = q.x1 * invscale;
 		npos++;
 		if (npos >= maxPositions)
 			break;

src/nanovg.h

@@ -89,7 +89,8 @@ enum NVGalpha {
 
 struct NVGglyphPosition {
 	const char* str;	// Position of the glyph in the input string.
-	float x;			// The x- coordinate of the position of the glyph .
+	float x;			// The x-coordinate of the logical glyph position.
+	float minx, maxx;	// The bounds of the glyph shape.
 };
 
 struct NVGtextRow {