gdi32: Fix coordinate mapping in Get/SetBoundsRect, with tests.

dlls/gdi32/dc.c

@@ -1399,7 +1399,7 @@ HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
  */
 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
 {
-    UINT ret;
+    UINT ret = 0;
     DC *dc = get_dc_ptr( hdc );
 
     if ( !dc ) return 0;
@@ -1407,18 +1407,15 @@ UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
     if (rect)
     {
         *rect = dc->BoundsRect;
-        ret = ((dc->flags & DC_BOUNDS_SET) ? DCB_SET : DCB_RESET);
+        ret = is_rect_empty( rect ) ? DCB_RESET : DCB_SET;
+        DPtoLP( hdc, (POINT *)rect, 2 );
     }
-    else
-        ret = 0;
-
     if (flags & DCB_RESET)
     {
         dc->BoundsRect.left   = 0;
         dc->BoundsRect.top    = 0;
         dc->BoundsRect.right  = 0;
         dc->BoundsRect.bottom = 0;
-        dc->flags &= ~DC_BOUNDS_SET;
     }
     release_dc_ptr( dc );
     return ret;
@@ -1437,7 +1434,7 @@ UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
     if (!(dc = get_dc_ptr( hdc ))) return 0;
 
     ret = ((dc->flags & DC_BOUNDS_ENABLE) ? DCB_ENABLE : DCB_DISABLE) |
-          ((dc->flags & DC_BOUNDS_SET) ? DCB_SET : DCB_RESET);
+           (is_rect_empty( &dc->BoundsRect ) ? DCB_RESET : DCB_SET);
 
     if (flags & DCB_RESET)
     {
@@ -1445,22 +1442,23 @@ UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
         dc->BoundsRect.top    = 0;
         dc->BoundsRect.right  = 0;
         dc->BoundsRect.bottom = 0;
-        dc->flags &= ~DC_BOUNDS_SET;
     }
 
-    if ((flags & DCB_ACCUMULATE) && rect && rect->left < rect->right && rect->top < rect->bottom)
+    if ((flags & DCB_ACCUMULATE) && rect)
     {
-        if (dc->flags & DC_BOUNDS_SET)
+        RECT rc = *rect;
+
+        LPtoDP( hdc, (POINT *)&rc, 2 );
+        if (!is_rect_empty( &rc ))
         {
-            dc->BoundsRect.left   = min( dc->BoundsRect.left, rect->left );
-            dc->BoundsRect.top    = min( dc->BoundsRect.top, rect->top );
-            dc->BoundsRect.right  = max( dc->BoundsRect.right, rect->right );
-            dc->BoundsRect.bottom = max( dc->BoundsRect.bottom, rect->bottom );
-        }
-        else
+            if (!is_rect_empty( &dc->BoundsRect))
             {
-            dc->BoundsRect = *rect;
-            dc->flags |= DC_BOUNDS_SET;
+                dc->BoundsRect.left   = min( dc->BoundsRect.left, rc.left );
+                dc->BoundsRect.top    = min( dc->BoundsRect.top, rc.top );
+                dc->BoundsRect.right  = max( dc->BoundsRect.right, rc.right );
+                dc->BoundsRect.bottom = max( dc->BoundsRect.bottom, rc.bottom );
+            }
+            else dc->BoundsRect = rc;
         }
     }
 

dlls/gdi32/gdi_private.h

@@ -258,7 +258,6 @@ typedef struct tagDC
 
   /* DC flags */
 #define DC_BOUNDS_ENABLE 0x0008   /* Bounding rectangle tracking is enabled */
-#define DC_BOUNDS_SET    0x0010   /* Bounding rectangle has been set */
 
 /* Certain functions will do no further processing if the driver returns this.
    Used by mfdrv for example. */

dlls/gdi32/tests/dc.c

@@ -30,6 +30,8 @@
 #include "winuser.h"
 #include "winerror.h"
 
+static DWORD (WINAPI *pSetLayout)(HDC hdc, DWORD layout);
+
 static void dump_region(HRGN hrgn)
 {
     DWORD i, size;
@@ -500,29 +502,24 @@ todo_wine
     ok(ret, "UnregisterClassA failed\n");
 }
 
-static void test_boundsrect_invalid(void)
+static void test_boundsrect(void)
 {
     HDC hdc;
+    HBITMAP bitmap;
     RECT rect, expect, set_rect;
     UINT ret;
 
-    hdc = GetDC(NULL);
-    ok(hdc != NULL, "GetDC failed\n");
+    hdc = CreateCompatibleDC(0);
+    ok(hdc != NULL, "CreateCompatibleDC failed\n");
+    bitmap = CreateCompatibleBitmap( hdc, 200, 200 );
+    SelectObject( hdc, bitmap );
 
     ret = GetBoundsRect(hdc, NULL, 0);
-    ok(ret == 0 ||
-       broken(ret == DCB_RESET), /* Win9x */
-       "Expected GetBoundsRect to return 0, got %u\n", ret);
+    ok(ret == 0, "Expected GetBoundsRect to return 0, got %u\n", ret);
 
     ret = GetBoundsRect(hdc, NULL, ~0U);
-    ok(ret == 0 ||
-       broken(ret == DCB_RESET), /* Win9x */
-       "Expected GetBoundsRect to return 0, got %u\n", ret);
+    ok(ret == 0, "Expected GetBoundsRect to return 0, got %u\n", ret);
 
-    if (GetBoundsRect(hdc, NULL, 0) == DCB_RESET)
-        win_skip("Win9x fails catastrophically with first GetBoundsRect call\n");
-    else
-    {
     /* Test parameter handling order. */
     SetRect(&set_rect, 10, 20, 40, 50);
     ret = SetBoundsRect(hdc, &set_rect, DCB_SET);
@@ -534,8 +531,6 @@ static void test_boundsrect_invalid(void)
        "Expected GetBoundsRect to return 0, got %u\n", ret);
 
     ret = GetBoundsRect(hdc, &rect, 0);
-        if (ret != DCB_SET) /* WinME */
-        {
     ok(ret == DCB_RESET,
        "Expected GetBoundsRect to return DCB_RESET, got %u\n", ret);
     SetRect(&expect, 0, 0, 0, 0);
@@ -543,13 +538,7 @@ static void test_boundsrect_invalid(void)
        broken(EqualRect(&rect, &set_rect)), /* nt4 sp1-5 */
        "Expected output rectangle (0,0)-(0,0), got (%d,%d)-(%d,%d)\n",
        rect.left, rect.top, rect.right, rect.bottom);
-       }
-    }
 
-    if (GetBoundsRect(hdc, NULL, 0) == DCB_RESET)
-        win_skip("Win9x fails catastrophically with NULL device context parameter\n");
-    else
-    {
     ret = GetBoundsRect(NULL, NULL, 0);
     ok(ret == 0, "Expected GetBoundsRect to return 0, got %u\n", ret);
 
@@ -561,9 +550,100 @@ static void test_boundsrect_invalid(void)
 
     ret = SetBoundsRect(NULL, NULL, ~0U);
     ok(ret == 0, "Expected SetBoundsRect to return 0, got %u\n", ret);
+
+    SetRect(&set_rect, 10, 20, 40, 50);
+    ret = SetBoundsRect(hdc, &set_rect, DCB_SET);
+    ok(ret == (DCB_RESET | DCB_DISABLE), "SetBoundsRect returned %x\n", ret);
+
+    ret = GetBoundsRect(hdc, &rect, 0);
+    ok(ret == DCB_SET, "GetBoundsRect returned %x\n", ret);
+    SetRect(&expect, 10, 20, 40, 50);
+    ok(EqualRect(&rect, &expect), "Got (%d,%d)-(%d,%d)\n",
+       rect.left, rect.top, rect.right, rect.bottom);
+
+    SetMapMode( hdc, MM_ANISOTROPIC );
+    SetViewportExtEx( hdc, 2, 2, NULL );
+    ret = GetBoundsRect(hdc, &rect, 0);
+    ok(ret == DCB_SET, "GetBoundsRect returned %x\n", ret);
+    SetRect(&expect, 5, 10, 20, 25);
+    ok(EqualRect(&rect, &expect), "Got (%d,%d)-(%d,%d)\n",
+       rect.left, rect.top, rect.right, rect.bottom);
+
+    SetViewportOrgEx( hdc, 20, 30, NULL );
+    ret = GetBoundsRect(hdc, &rect, 0);
+    ok(ret == DCB_SET, "GetBoundsRect returned %x\n", ret);
+    SetRect(&expect, -5, -5, 10, 10);
+    ok(EqualRect(&rect, &expect), "Got (%d,%d)-(%d,%d)\n",
+       rect.left, rect.top, rect.right, rect.bottom);
+
+    SetRect(&set_rect, 10, 20, 40, 50);
+    ret = SetBoundsRect(hdc, &set_rect, DCB_SET);
+    ok(ret == (DCB_SET | DCB_DISABLE), "SetBoundsRect returned %x\n", ret);
+
+    ret = GetBoundsRect(hdc, &rect, 0);
+    ok(ret == DCB_SET, "GetBoundsRect returned %x\n", ret);
+    SetRect(&expect, 10, 20, 40, 50);
+    ok(EqualRect(&rect, &expect), "Got (%d,%d)-(%d,%d)\n",
+       rect.left, rect.top, rect.right, rect.bottom);
+
+    SetMapMode( hdc, MM_TEXT );
+    SetViewportOrgEx( hdc, 0, 0, NULL );
+    ret = GetBoundsRect(hdc, &rect, 0);
+    ok(ret == DCB_SET, "GetBoundsRect returned %x\n", ret);
+    SetRect(&expect, 40, 70, 100, 130);
+    ok(EqualRect(&rect, &expect), "Got (%d,%d)-(%d,%d)\n",
+       rect.left, rect.top, rect.right, rect.bottom);
+
+    if (pSetLayout)
+    {
+        pSetLayout( hdc, LAYOUT_RTL );
+        ret = GetBoundsRect(hdc, &rect, 0);
+        ok(ret == DCB_SET, "GetBoundsRect returned %x\n", ret);
+        SetRect(&expect, 159, 70, 99, 130);
+        ok(EqualRect(&rect, &expect), "Got (%d,%d)-(%d,%d)\n",
+           rect.left, rect.top, rect.right, rect.bottom);
+        SetRect(&set_rect, 50, 25, 30, 35);
+        ret = SetBoundsRect(hdc, &set_rect, DCB_SET);
+        ok(ret == (DCB_SET | DCB_DISABLE), "SetBoundsRect returned %x\n", ret);
+        ret = GetBoundsRect(hdc, &rect, 0);
+        ok(ret == DCB_SET, "GetBoundsRect returned %x\n", ret);
+        SetRect(&expect, 50, 25, 30, 35);
+        ok(EqualRect(&rect, &expect), "Got (%d,%d)-(%d,%d)\n",
+           rect.left, rect.top, rect.right, rect.bottom);
+
+        pSetLayout( hdc, LAYOUT_LTR );
+        ret = GetBoundsRect(hdc, &rect, 0);
+        ok(ret == DCB_SET, "GetBoundsRect returned %x\n", ret);
+        SetRect(&expect, 149, 25, 169, 35);
+        ok(EqualRect(&rect, &expect), "Got (%d,%d)-(%d,%d)\n",
+           rect.left, rect.top, rect.right, rect.bottom);
     }
 
-    ReleaseDC(NULL, hdc);
+    /* empty rect resets, except on nt4 */
+    SetRect(&expect, 20, 20, 10, 10);
+    ret = SetBoundsRect(hdc, &set_rect, DCB_SET);
+    ok(ret == (DCB_SET | DCB_DISABLE), "SetBoundsRect returned %x\n", ret);
+    ret = GetBoundsRect(hdc, &rect, 0);
+    ok(ret == DCB_RESET || broken(ret == DCB_SET)  /* nt4 */,
+       "GetBoundsRect returned %x\n", ret);
+    if (ret == DCB_RESET)
+    {
+        SetRect(&expect, 0, 0, 0, 0);
+        ok(EqualRect(&rect, &expect), "Got (%d,%d)-(%d,%d)\n",
+           rect.left, rect.top, rect.right, rect.bottom);
+
+        SetRect(&expect, 20, 20, 20, 20);
+        ret = SetBoundsRect(hdc, &set_rect, DCB_SET);
+        ok(ret == (DCB_RESET | DCB_DISABLE), "SetBoundsRect returned %x\n", ret);
+        ret = GetBoundsRect(hdc, &rect, 0);
+        ok(ret == DCB_RESET, "GetBoundsRect returned %x\n", ret);
+        SetRect(&expect, 0, 0, 0, 0);
+        ok(EqualRect(&rect, &expect), "Got (%d,%d)-(%d,%d)\n",
+           rect.left, rect.top, rect.right, rect.bottom);
+    }
+
+    DeleteDC( hdc );
+    DeleteObject( bitmap );
 }
 
 static void test_desktop_colorres(void)
@@ -661,13 +741,14 @@ done:
 
 START_TEST(dc)
 {
+    pSetLayout = (void *)GetProcAddress( GetModuleHandle("gdi32.dll"), "SetLayout");
     test_savedc();
     test_savedc_2();
     test_GdiConvertToDevmodeW();
     test_CreateCompatibleDC();
     test_DC_bitmap();
     test_DeleteDC();
-    test_boundsrect_invalid();
+    test_boundsrect();
     test_desktop_colorres();
     test_gamma();
 }