gdiplus: Implement ResetWorldTransform metafile playback/recording.

dlls/gdiplus/gdiplus_private.h

@@ -91,6 +91,7 @@ extern GpStatus METAFILE_FillRectangles(GpMetafile* metafile, GpBrush* brush,
     GDIPCONST GpRectF* rects, INT count) DECLSPEC_HIDDEN;
 extern GpStatus METAFILE_SetPageTransform(GpMetafile* metafile, GpUnit unit, REAL scale) DECLSPEC_HIDDEN;
 extern GpStatus METAFILE_ScaleWorldTransform(GpMetafile* metafile, REAL sx, REAL sy, MatrixOrder order) DECLSPEC_HIDDEN;
+extern GpStatus METAFILE_ResetWorldTransform(GpMetafile* metafile) DECLSPEC_HIDDEN;
 extern GpStatus METAFILE_GraphicsDeleted(GpMetafile* metafile) DECLSPEC_HIDDEN;
 
 extern void calc_curve_bezier(const GpPointF *pts, REAL tension, REAL *x1,

dlls/gdiplus/graphics.c

@@ -5128,6 +5128,8 @@ GpStatus WINGDIPAPI GdipResetClip(GpGraphics *graphics)
 
 GpStatus WINGDIPAPI GdipResetWorldTransform(GpGraphics *graphics)
 {
+    GpStatus stat;
+
     TRACE("(%p)\n", graphics);
 
     if(!graphics)
@@ -5136,6 +5138,13 @@ GpStatus WINGDIPAPI GdipResetWorldTransform(GpGraphics *graphics)
     if(graphics->busy)
         return ObjectBusy;
 
+    if (graphics->image && graphics->image->type == ImageTypeMetafile) {
+        stat = METAFILE_ResetWorldTransform((GpMetafile*)graphics->image);
+
+        if (stat != Ok)
+            return stat;
+    }
+
     return GdipSetMatrixElements(&graphics->worldtrans, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
 }
 

dlls/gdiplus/metafile.c

@@ -586,6 +586,28 @@ GpStatus METAFILE_ScaleWorldTransform(GpMetafile* metafile, REAL sx, REAL sy, Ma
     return Ok;
 }
 
+GpStatus METAFILE_ResetWorldTransform(GpMetafile* metafile)
+{
+    if (metafile->metafile_type == MetafileTypeEmfPlusOnly || metafile->metafile_type == MetafileTypeEmfPlusDual)
+    {
+        EmfPlusRecordHeader *record;
+        GpStatus stat;
+
+        stat = METAFILE_AllocateRecord(metafile,
+            sizeof(EmfPlusRecordHeader),
+            (void**)&record);
+        if (stat != Ok)
+            return stat;
+
+        record->Type = EmfPlusRecordTypeResetWorldTransform;
+        record->Flags = 0;
+
+        METAFILE_WriteRecords(metafile);
+    }
+
+    return Ok;
+}
+
 GpStatus METAFILE_ReleaseDC(GpMetafile* metafile, HDC hdc)
 {
     if (hdc != metafile->record_dc)
@@ -935,6 +957,12 @@ GpStatus WINGDIPAPI GdipPlayMetafileRecord(GDIPCONST GpMetafile *metafile,
 
             return METAFILE_PlaybackUpdateWorldTransform(real_metafile);
         }
+        case EmfPlusRecordTypeResetWorldTransform:
+        {
+            GdipSetMatrixElements(real_metafile->world_transform, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
+
+            return METAFILE_PlaybackUpdateWorldTransform(real_metafile);
+        }
         default:
             FIXME("Not implemented for record type %x\n", recordType);
             return NotImplemented;

dlls/gdiplus/tests/metafile.c

@@ -1273,6 +1273,8 @@ static const emfplus_record worldtransform_records[] = {
     {0, EmfPlusRecordTypeFillRects},
     {0, EmfPlusRecordTypeScaleWorldTransform},
     {0, EmfPlusRecordTypeFillRects},
+    {0, EmfPlusRecordTypeResetWorldTransform},
+    {0, EmfPlusRecordTypeFillRects},
     {0, EmfPlusRecordTypeEndOfFile},
     {0, EMR_EOF},
     {0}
@@ -1352,6 +1354,26 @@ static void test_worldtransform(void)
     stat = GdipDeleteBrush(brush);
     expect(Ok, stat);
 
+    /* reset transform */
+    stat = GdipResetWorldTransform(graphics);
+    expect(Ok, stat);
+
+    stat = GdipGetWorldTransform(graphics, transform);
+    expect(Ok, stat);
+
+    stat = GdipIsMatrixIdentity(transform, &identity);
+    expect(Ok, stat);
+    expect(TRUE, identity);
+
+    stat = GdipCreateSolidFill((ARGB)0xff00ffff, (GpSolidFill**)&brush);
+    expect(Ok, stat);
+
+    stat = GdipFillRectangle(graphics, brush, 1.0, 0.0, 1.0, 1.0);
+    expect(Ok, stat);
+
+    stat = GdipDeleteBrush(brush);
+    expect(Ok, stat);
+
     stat = GdipDeleteMatrix(transform);
     expect(Ok, stat);
 
@@ -1382,6 +1404,10 @@ static void test_worldtransform(void)
     expect(Ok, stat);
     expect(0xff00ff00, color);
 
+    stat = GdipBitmapGetPixel(bitmap, 30, 10, &color);
+    expect(Ok, stat);
+    expect(0xff00ffff, color);
+
     stat = GdipDeleteGraphics(graphics);
     expect(Ok, stat);