gdiplus: Implement GdipMultiplyPenTransform().

dlls/gdiplus/pen.c

@@ -496,17 +496,12 @@ GpStatus WINGDIPAPI GdipRotatePenTransform(GpPen *pen, REAL angle, GpMatrixOrder
 GpStatus WINGDIPAPI GdipMultiplyPenTransform(GpPen *pen, GDIPCONST GpMatrix *matrix,
     GpMatrixOrder order)
 {
-    static int calls;
-
     TRACE("(%p,%p,%u)\n", pen, matrix, order);
 
     if(!pen)
         return InvalidParameter;
 
-    if(!(calls++))
-        FIXME("not implemented\n");
-
-    return NotImplemented;
+    return GdipMultiplyMatrix(&pen->transform, matrix, order);
 }
 
 GpStatus WINGDIPAPI GdipSetPenBrushFill(GpPen *pen, GpBrush *brush)

dlls/gdiplus/tests/pen.c

@@ -553,6 +553,41 @@ static void test_transform(void)
     expectf(1.0, values[4]);
     expectf(-2.0, values[5]);
 
+    /* Multiply */
+    status = GdipResetPenTransform(pen);
+    expect(Ok, status);
+
+    status = GdipSetMatrixElements(matrix, 2.0, 1.0, 1.0, 4.0, 1.0, 2.0);
+    expect(Ok, status);
+
+    status = GdipMultiplyPenTransform(NULL, matrix, MatrixOrderPrepend);
+    expect(InvalidParameter, status);
+
+    status = GdipMultiplyPenTransform(pen, matrix, MatrixOrderPrepend);
+    expect(Ok, status);
+
+    get_pen_transform(pen, values);
+    expectf(2.0, values[0]);
+    expectf(1.0, values[1]);
+    expectf(1.0, values[2]);
+    expectf(4.0, values[3]);
+    expectf(1.0, values[4]);
+    expectf(2.0, values[5]);
+
+    status = GdipScalePenTransform(pen, 2.0, -10.0, MatrixOrderAppend);
+    expect(Ok, status);
+
+    status = GdipMultiplyPenTransform(pen, matrix, MatrixOrderAppend);
+    expect(Ok, status);
+
+    get_pen_transform(pen, values);
+    expectf(-2.0, values[0]);
+    expectf(-36.0, values[1]);
+    expectf(-36.0, values[2]);
+    expectf(-158.0, values[3]);
+    expectf(-15.0, values[4]);
+    expectf(-76.0, values[5]);
+
     GdipDeletePen(pen);
 
     GdipDeleteMatrix(matrix);

include/gdiplusflat.h

@@ -629,6 +629,7 @@ GpStatus WINGDIPAPI GdipGetPenDashOffset(GpPen*,REAL*);
 GpStatus WINGDIPAPI GdipGetPenDashStyle(GpPen*,GpDashStyle*);
 GpStatus WINGDIPAPI GdipGetPenMode(GpPen*,GpPenAlignment*);
 GpStatus WINGDIPAPI GdipGetPenTransform(GpPen *, GpMatrix *);
+GpStatus WINGDIPAPI GdipMultiplyPenTransform(GpPen *,GDIPCONST GpMatrix *,GpMatrixOrder);
 GpStatus WINGDIPAPI GdipResetPenTransform(GpPen*);
 GpStatus WINGDIPAPI GdipScalePenTransform(GpPen*,REAL,REAL,GpMatrixOrder);
 GpStatus WINGDIPAPI GdipSetPenBrushFill(GpPen*,GpBrush*);