gdiplus/metafile: Implement SetClipPath() recording.

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Esme Povirk <esme@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/gdiplus/gdiplus_private.h

@@ -119,6 +119,7 @@ extern GpStatus METAFILE_DrawArc(GpMetafile *metafile, GpPen *pen, const GpRectF
     REAL startAngle, REAL sweepAngle) DECLSPEC_HIDDEN;
 extern GpStatus METAFILE_OffsetClip(GpMetafile *metafile, REAL dx, REAL dy) DECLSPEC_HIDDEN;
 extern GpStatus METAFILE_ResetClip(GpMetafile *metafile) DECLSPEC_HIDDEN;
+extern GpStatus METAFILE_SetClipPath(GpMetafile *metafile, GpPath *path, CombineMode mode) DECLSPEC_HIDDEN;
 
 extern void calc_curve_bezier(const GpPointF *pts, REAL tension, REAL *x1,
     REAL *y1, REAL *x2, REAL *y2) DECLSPEC_HIDDEN;

dlls/gdiplus/graphics.c

@@ -6443,6 +6443,13 @@ GpStatus WINGDIPAPI GdipSetClipPath(GpGraphics *graphics, GpPath *path, CombineM
     if(graphics->busy)
         return ObjectBusy;
 
+    if (is_metafile_graphics(graphics))
+    {
+        status = METAFILE_SetClipPath((GpMetafile*)graphics->image, path, mode);
+        if (status != Ok)
+            return status;
+    }
+
     status = GdipClonePath(path, &clip_path);
     if (status == Ok)
     {

dlls/gdiplus/metafile.c

@@ -5248,3 +5248,30 @@ GpStatus METAFILE_ResetClip(GpMetafile *metafile)
 
     return Ok;
 }
+
+GpStatus METAFILE_SetClipPath(GpMetafile *metafile, GpPath *path, CombineMode mode)
+{
+    EmfPlusRecordHeader *record;
+    DWORD path_id;
+    GpStatus stat;
+
+    if (metafile->metafile_type == MetafileTypeEmf)
+    {
+        FIXME("stub!\n");
+        return NotImplemented;
+    }
+
+    stat = METAFILE_AddPathObject(metafile, path, &path_id);
+    if (stat != Ok) return stat;
+
+    stat = METAFILE_AllocateRecord(metafile, EmfPlusRecordTypeSetClipPath,
+        sizeof(*record), (void **)&record);
+    if (stat != Ok)
+        return stat;
+
+    record->Flags = ((mode & 0xf) << 8) | path_id;
+
+    METAFILE_WriteRecords(metafile);
+
+    return Ok;
+}

dlls/gdiplus/tests/metafile.c

@@ -3803,6 +3803,62 @@ static void test_resetclip(void)
     expect(Ok, stat);
 }
 
+static void test_setclippath(void)
+{
+    static const GpRectF frame = { 0.0f, 0.0f, 100.0f, 100.0f };
+    static const emfplus_record set_clip_path_records[] =
+    {
+       { EMR_HEADER },
+       { EmfPlusRecordTypeHeader },
+       { EmfPlusRecordTypeObject, ObjectTypePath << 8 },
+       { EmfPlusRecordTypeSetClipPath, 0x100 },
+       { EmfPlusRecordTypeEndOfFile },
+       { EMR_EOF },
+       { 0 },
+    };
+
+    GpMetafile *metafile;
+    GpGraphics *graphics;
+    HENHMETAFILE hemf;
+    GpStatus stat;
+    GpPath *path;
+    HDC hdc;
+
+    hdc = CreateCompatibleDC(0);
+    stat = GdipRecordMetafile(hdc, EmfTypeEmfPlusOnly, &frame, MetafileFrameUnitPixel, description, &metafile);
+    expect(Ok, stat);
+    DeleteDC(hdc);
+
+    stat = GdipGetImageGraphicsContext((GpImage *)metafile, &graphics);
+    expect(Ok, stat);
+
+    stat = GdipCreatePath(FillModeAlternate, &path);
+    expect(Ok, stat);
+    stat = GdipAddPathLine(path, 5, 5, 30, 30);
+    expect(Ok, stat);
+    stat = GdipAddPathLine(path, 30, 30, 5, 30);
+    expect(Ok, stat);
+
+    stat = GdipSetClipPath(graphics, path, CombineModeIntersect);
+    expect(Ok, stat);
+
+    stat = GdipDeletePath(path);
+    expect(Ok, stat);
+
+    stat = GdipDeleteGraphics(graphics);
+    expect(Ok, stat);
+    sync_metafile(&metafile, "set_clip_path.emf");
+
+    stat = GdipGetHemfFromMetafile(metafile, &hemf);
+    expect(Ok, stat);
+
+    check_emfplus(hemf, set_clip_path_records, "set clip path");
+    DeleteEnhMetaFile(hemf);
+
+    stat = GdipDisposeImage((GpImage*)metafile);
+    expect(Ok, stat);
+}
+
 START_TEST(metafile)
 {
     struct GdiplusStartupInput gdiplusStartupInput;
@@ -3862,6 +3918,7 @@ START_TEST(metafile)
     test_drawrectangle();
     test_offsetclip();
     test_resetclip();
+    test_setclippath();
 
     GdiplusShutdown(gdiplusToken);
 }