commit 2af29ed916ece18ff0e0fdab75f6ee8b9b88b80f
author Vincent Povirk <vincent@codeweavers.com> Mon Mar 23 16:34:12 2009 -0500
committer Alexandre Julliard <julliard@winehq.org> Wed May 20 10:51:33 2009 +0200
tree 67b336e10e655e7ad1d2b215eba62a12d989af49
parent 2bec5b14d2cc9f030d6ad2ab3bd92de8d91e2975

gdiplus: Implement GdipTransformPoints.

dlls/gdiplus/graphics.c

diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c
index 5e5883f..4762669 100644
--- a/dlls/gdiplus/graphics.c
+++ b/dlls/gdiplus/graphics.c
@@ -3592,15 +3592,71 @@
 GpStatus WINGDIPAPI GdipTransformPoints(GpGraphics *graphics, GpCoordinateSpace dst_space,
                                         GpCoordinateSpace src_space, GpPointF *points, INT count)
 {
+    GpMatrix *matrix;
+    GpStatus stat;
+    REAL unitscale;
+
     if(!graphics || !points || count <= 0)
         return InvalidParameter;
 
     if(graphics->busy)
         return ObjectBusy;
 
-    FIXME("(%p, %d, %d, %p, %d): stub\n", graphics, dst_space, src_space, points, count);
+    TRACE("(%p, %d, %d, %p, %d)\n", graphics, dst_space, src_space, points, count);
 
-    return NotImplemented;
+    if (src_space == dst_space) return Ok;
+
+    stat = GdipCreateMatrix(&matrix);
+    if (stat == Ok)
+    {
+        unitscale = convert_unit(graphics->hdc, graphics->unit);
+
+        if(graphics->unit != UnitDisplay)
+            unitscale *= graphics->scale;
+
+        /* transform from src_space to CoordinateSpacePage */
+        switch (src_space)
+        {
+        case CoordinateSpaceWorld:
+            GdipMultiplyMatrix(matrix, graphics->worldtrans, MatrixOrderAppend);
+            break;
+        case CoordinateSpacePage:
+            break;
+        case CoordinateSpaceDevice:
+            GdipScaleMatrix(matrix, 1.0/unitscale, 1.0/unitscale, MatrixOrderAppend);
+            break;
+        }
+
+        /* transform from CoordinateSpacePage to dst_space */
+        switch (dst_space)
+        {
+        case CoordinateSpaceWorld:
+            {
+                GpMatrix *inverted_transform;
+                stat = GdipCloneMatrix(graphics->worldtrans, &inverted_transform);
+                if (stat == Ok)
+                {
+                    stat = GdipInvertMatrix(inverted_transform);
+                    if (stat == Ok)
+                        GdipMultiplyMatrix(matrix, inverted_transform, MatrixOrderAppend);
+                    GdipDeleteMatrix(inverted_transform);
+                }
+                break;
+            }
+        case CoordinateSpacePage:
+            break;
+        case CoordinateSpaceDevice:
+            GdipScaleMatrix(matrix, unitscale, unitscale, MatrixOrderAppend);
+            break;
+        }
+
+        if (stat == Ok)
+            stat = GdipTransformMatrixPoints(matrix, points, count);
+
+        GdipDeleteMatrix(matrix);
+    }
+
+    return stat;
 }
 
 GpStatus WINGDIPAPI GdipTransformPointsI(GpGraphics *graphics, GpCoordinateSpace dst_space,