fix: EBNF more arrow head

Author: arnaudroques

src/net/sourceforge/plantuml/ebnf/ETile.java

@@ -74,9 +74,9 @@ protected final void drawHline(UGraphic ug, double y, double x1, double x2) {
 		ug.apply(new UTranslate(x1, y)).draw(ULine.hline(x2 - x1));
 	}
 
-	protected final void drawHlineDirected(UGraphic ug, double y, double x1, double x2, double coef) {
+	protected final void drawHlineDirected(UGraphic ug, double y, double x1, double x2, double coef, double minimunSizeForArrow) {
 		ug.apply(new UTranslate(x1, y)).draw(ULine.hline(x2 - x1));
-		if (x2 > x1 + 25)
+		if (x2 > x1 + minimunSizeForArrow)
 			ug.apply(new CopyForegroundColorToBackgroundColor())
 					.apply(new UTranslate(x1 * (1 - coef) + x2 * coef - 2, y)).draw(getArrowToRight());
 

src/net/sourceforge/plantuml/ebnf/ETileAlternation.java

@@ -109,7 +109,7 @@ public void drawU(UGraphic ug) {
 				tile.drawU(ug.apply(new UTranslate(c, y)));
 
 				CornerCurved.createSW(marginx).drawU(ug.apply(new UTranslate(b, lastLinePos)));
-				drawHlineDirected(ug, lastLinePos, c + dim.getWidth(), p, 0.3);
+				drawHlineDirected(ug, lastLinePos, c + dim.getWidth(), p, 0.3, 25);
 				CornerCurved.createSE(marginx).drawU(ug.apply(new UTranslate(q, lastLinePos)));
 
 				y += dim.getHeight() + 10;
@@ -130,10 +130,10 @@ public void drawU(UGraphic ug) {
 					drawHline(ug, lastLinePos, c + dim.getWidth(), r);
 				} else if (i > 0 && i < tiles.size() - 1) {
 					CornerCurved.createSW(marginx).drawU(ug.apply(new UTranslate(b, lastLinePos)));
-					drawHlineDirected(ug, lastLinePos, c + dim.getWidth(), p, 0.5);
+					drawHlineDirected(ug, lastLinePos, c + dim.getWidth(), p, 0.5, 25);
 					CornerCurved.createSE(marginx).drawU(ug.apply(new UTranslate(q, lastLinePos)));
 				} else if (i == tiles.size() - 1) {
-					drawHlineDirected(ug, lastLinePos, c + dim.getWidth(), p, 0.5);
+					drawHlineDirected(ug, lastLinePos, c + dim.getWidth(), p, 0.5, 25);
 
 				}
 				y += dim.getHeight() + 10;

src/net/sourceforge/plantuml/ebnf/ETileBox.java

@@ -185,8 +185,8 @@ public void drawU(UGraphic ug) {
 		}
 
 		if (posxBox > 0) {
-			drawHlineDirected(ug, getH1(stringBounder), 0, posxBox, .5);
-			drawHlineDirected(ug, getH1(stringBounder), posxBox + dimBox.getWidth(), dim.getWidth(), .5);
+			drawHlineDirected(ug, getH1(stringBounder), 0, posxBox, .5, 25);
+			drawHlineDirected(ug, getH1(stringBounder), posxBox + dimBox.getWidth(), dim.getWidth(), .5, 25);
 		}
 
 	}

src/net/sourceforge/plantuml/ebnf/ETileConcatenation.java

@@ -70,7 +70,7 @@ public void drawU(UGraphic ug) {
 			tile.drawU(ug.apply(new UTranslate(x, fullLinePos - linePos)));
 			x += tile.calculateDimension(stringBounder).getWidth();
 			if (i != tiles.size() - 1) {
-				drawHlineDirected(ug, fullLinePos, x, x + marginx, 0.5);
+				drawHlineDirected(ug, fullLinePos, x, x + marginx, 0.5, 25);
 				x += marginx;
 			}
 		}

src/net/sourceforge/plantuml/ebnf/ETileOptional.java

@@ -107,7 +107,7 @@ public void drawU(UGraphic ug) {
 		drawVline(ug, posA, corner + posYoptionalLine, linePos - corner);
 		CornerCurved.createNW(corner).drawU(ug.apply(new UTranslate(posA, posYoptionalLine)));
 
-		drawHlineDirected(ug, posYoptionalLine, posA + corner, posB - corner, 0.4);
+		drawHlineDirected(ug, posYoptionalLine, posA + corner, posB - corner, 0.4, 0);
 
 		CornerCurved.createSW(corner).drawU(ug.apply(new UTranslate(posB, linePos)));
 		drawVline(ug, posB, corner + posYoptionalLine, linePos - corner);

src/net/sourceforge/plantuml/ebnf/ETileWithCircles.java

@@ -86,8 +86,8 @@ public void drawU(UGraphic ug) {
 				.apply(new UTranslate(fullDim.getWidth() - SIZE / 2, linePos - SIZE / 2)).draw(circle);
 
 		ug = ug.apply(UStroke.withThickness(1.5));
-		drawHlineDirected(ug, linePos, SIZE, deltax, 0.5);
-		drawHlineDirected(ug, linePos, fullDim.getWidth() - deltax, fullDim.getWidth() - SIZE / 2, 0.5);
+		drawHlineDirected(ug, linePos, SIZE, deltax, 0.5, 25);
+		drawHlineDirected(ug, linePos, fullDim.getWidth() - deltax, fullDim.getWidth() - SIZE / 2, 0.5, 25);
 	}
 
 	@Override