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https://github.com/reactos/reactos.git
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Initial code for NtUserGetDC
svn path=/trunk/; revision=3387
This commit is contained in:
Jason Filby
parent
34b85a88a2
commit
1231d02b03
9 changed files with 197 additions and 23 deletions
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@ -1291,6 +1291,8 @@ extern "C" {
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#define DCX_EXCLUDERGN (0x40L)
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#define DCX_INTERSECTRGN (0x80L)
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#define DCX_VALIDATE (0x200000L)
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#define DCX_USESTYLE (0x00010000L)
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#define DCX_NORECOMPUTE (0x00100000L)
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/* GetDeviceCaps */
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#define DRIVERVERSION (0)
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@ -1,5 +1,9 @@
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#define WIN_NCACTIVATED (0x0080)
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#define DCX_KEEPCLIPRGN (0x40000)
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#define DCX_USESTYLE (0x10000)
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#define DCX_WINDOWPAINT (0x20000)
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/* internal DCX flags */
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#define DCX_DCEEMPTY 0x00000800
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#define DCX_DCEBUSY 0x00001000
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#define DCX_DCEDIRTY 0x00002000
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#define DCX_WINDOWPAINT 0x00020000
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#define DCX_KEEPCLIPRGN 0x00040000
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#define DCX_NOCLIPCHILDREN 0x00080000
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@ -23,6 +23,7 @@
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#define GO_METAFILE_DC_MAGIC 0x4f51
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#define GO_ENHMETAFILE_MAGIC 0x4f52
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#define GO_ENHMETAFILE_DC_MAGIC 0x4f53
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#define GO_DCE_MAGIC 0x4f54
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#define GO_MAGIC_DONTCARE 0xffff
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/* (RJJ) swiped stock handles from wine */
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@ -616,11 +616,9 @@ NtUserGetCursorInfo(
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DWORD
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STDCALL
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NtUserGetDC(
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DWORD Unknown0);
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NtUserGetDC(HWND hWnd);
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HDC STDCALL
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NtUserGetDCEx(HWND hWnd, HANDLE hRegion, ULONG Flags);
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HDC STDCALL NtUserGetDCEx(HWND hWnd, HANDLE hRegion, ULONG Flags);
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DWORD
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STDCALL
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@ -16,7 +16,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: dc.c,v 1.6 2002/06/13 20:36:40 dwelch Exp $
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/* $Id: dc.c,v 1.7 2002/08/24 11:09:17 jfilby Exp $
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*
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* PROJECT: ReactOS user32.dll
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* FILE: lib/user32/windows/input.c
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@ -39,7 +39,7 @@ STDCALL
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GetDC(
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HWND hWnd)
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{
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return (HDC)0;
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return NtUserGetDC(hWnd);
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}
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HDC
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@ -49,7 +49,7 @@ GetDCEx(
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HRGN hrgnClip,
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DWORD flags)
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{
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return (HDC)0;
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return NtUserGetDCEx(hWnd, hrgnClip, flags);
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}
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HDC
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STDCALL
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@ -6,6 +6,7 @@
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#include <include/class.h>
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#include <include/msgqueue.h>
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#include <include/winsta.h>
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#include <include/dce.h>
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typedef struct _INTERNALPOS
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{
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@ -72,6 +73,8 @@ typedef struct _WINDOW_OBJECT
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LIST_ENTRY ThreadListEntry;
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/* Pointer to the parent window. */
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struct _WINDOW_OBJECT* Parent;
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/* DC Entries (DCE) */
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PDCE dce;
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} WINDOW_OBJECT, *PWINDOW_OBJECT;
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/* Window flags. */
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@ -825,16 +825,6 @@ NtUserGetCursorInfo(
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return 0;
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}
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DWORD
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STDCALL
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NtUserGetDC(
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DWORD Unknown0)
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{
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UNIMPLEMENTED
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return 0;
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}
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DWORD
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STDCALL
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NtUserGetDoubleClickTime(VOID)
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@ -1424,6 +1414,7 @@ NtUserScrollDC(
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DWORD Unknown4,
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DWORD Unknown5,
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DWORD Unknown6)
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{
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UNIMPLEMENTED
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@ -1,4 +1,4 @@
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/* $Id: windc.c,v 1.2 2002/07/17 21:04:57 dwelch Exp $
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/* $Id: windc.c,v 1.3 2002/08/24 11:09:17 jfilby Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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@ -20,12 +20,19 @@
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#include <include/msgqueue.h>
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#include <include/window.h>
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#include <include/rect.h>
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#include <include/dce.h>
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#define NDEBUG
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#include <debug.h>
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static PDCE firstDCE;
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/* FUNCTIONS *****************************************************************/
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VOID DCE_FreeWindowDCE(HWND);
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INT DCE_ExcludeRgn(HDC, HWND, HRGN);
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BOOL DCE_InvalidateDCE(HWND, const PRECTL);
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BOOL STATIC
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DceGetVisRect(PWINDOW_OBJECT Window, BOOL ClientArea, RECT* Rect)
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{
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@ -225,10 +232,167 @@ NtUserReleaseDC(HWND hWnd, HDC hDc)
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}
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DWORD
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STDCALL
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NtUserGetDC(HWND hWnd)
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{
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if (!hWnd)
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return NtUserGetDCEx(0, 0, DCX_CACHE | DCX_WINDOW);
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return NtUserGetDCEx(hWnd, 0, DCX_USESTYLE);
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}
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HDC STDCALL
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NtUserGetDCEx(HWND hWnd, HANDLE hRegion, ULONG Flags)
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{
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HDC hdc = 0;
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HDCE hdce;
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PDCE dce;
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DWORD dcxFlags = 0;
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BOOL bUpdateVisRgn = TRUE;
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BOOL bUpdateClipOrigin = FALSE;
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HWND parent, full;
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PWINDOW_OBJECT Window;
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DPRINT("hWnd %04x, hRegion %04x, Flags %08x\n", hWnd, hRegion, (unsigned)Flags);
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if (!hWnd) hWnd = W32kGetDesktopWindow();
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if (!(Window = W32kGetWindowObject(hWnd))) return 0;
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// fixup flags
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if (Flags & (DCX_WINDOW | DCX_PARENTCLIP)) Flags |= DCX_CACHE;
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if (Flags & DCX_USESTYLE)
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{
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Flags &= ~(DCX_CLIPCHILDREN | DCX_CLIPSIBLINGS | DCX_PARENTCLIP);
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if(Window->Style & WS_CLIPSIBLINGS)
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Flags |= DCX_CLIPSIBLINGS;
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if (!(Flags & DCX_WINDOW))
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{
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if (Window->ExStyle & CS_PARENTDC) Flags |= DCX_PARENTCLIP;
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if (Window->Style & WS_CLIPCHILDREN &&
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!(Window->Style & WS_MINIMIZE)) Flags |= DCX_CLIPCHILDREN;
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if (!Window->dce) Flags |= DCX_CACHE;
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}
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}
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if (Flags & DCX_WINDOW) Flags &= ~DCX_CLIPCHILDREN;
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parent = W32kGetParentWindow(hWnd);
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if (!parent || (parent == W32kGetDesktopWindow()))
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Flags = (Flags & ~DCX_PARENTCLIP) | DCX_CLIPSIBLINGS;
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// it seems parent clip is ignored when clipping siblings or children
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if (Flags & (DCX_CLIPSIBLINGS | DCX_CLIPCHILDREN)) Flags &= ~DCX_PARENTCLIP;
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if(Flags & DCX_PARENTCLIP)
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{
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LONG parent_style = NtUserGetWindowLong(parent, GWL_STYLE);
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if((Window->Style & WS_VISIBLE) && (parent_style & WS_VISIBLE))
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{
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Flags &= ~DCX_CLIPCHILDREN;
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if (parent_style & WS_CLIPSIBLINGS) Flags |= DCX_CLIPSIBLINGS;
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}
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}
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// find a suitable DCE
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dcxFlags = Flags & (DCX_PARENTCLIP | DCX_CLIPSIBLINGS | DCX_CLIPCHILDREN |
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DCX_CACHE | DCX_WINDOW);
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if (Flags & DCX_CACHE)
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{
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PDCE dceEmpty;
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PDCE dceUnused;
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dceEmpty = dceUnused = NULL;
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/* Strategy: First, we attempt to find a non-empty but unused DCE with
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* compatible flags. Next, we look for an empty entry. If the cache is
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* full we have to purge one of the unused entries.
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*/
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for (dce = firstDCE; (dce); dce = dce->next)
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{
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if ((dce->DCXflags & (DCX_CACHE | DCX_DCEBUSY)) == DCX_CACHE)
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{
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dceUnused = dce;
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if (dce->DCXflags & DCX_DCEEMPTY)
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dceEmpty = dce;
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else
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if ((dce->hwndCurrent == hWnd) &&
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((dce->DCXflags & (DCX_CLIPSIBLINGS | DCX_CLIPCHILDREN |
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DCX_CACHE | DCX_WINDOW | DCX_PARENTCLIP)) == dcxFlags))
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{
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DPRINT("Found valid %08x dce [%04x], flags %08x\n",
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(unsigned)dce, hWnd, (unsigned)dcxFlags);
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bUpdateVisRgn = FALSE;
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bUpdateClipOrigin = TRUE;
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break;
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}
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}
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}
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if (!dce) dce = (dceEmpty) ? dceEmpty : dceUnused;
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// if there's no dce empty or unused, allocate a new one
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if (!dce)
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{
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hdce = DCEOBJ_AllocDCE();
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if (hdce == NULL)
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{
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return 0;
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}
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dce = DCEOBJ_LockDCE(hdce);
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dce->type = DCE_CACHE_DC;
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}
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}
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else
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{
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dce = Window->dce;
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if (dce && dce->hwndCurrent == hWnd)
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{
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DPRINT("skipping hVisRgn update\n");
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bUpdateVisRgn = FALSE; // updated automatically, via DCHook()
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}
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}
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if (!dce)
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{
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hdc = 0;
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goto END;
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}
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if (!(Flags & (DCX_INTERSECTRGN | DCX_EXCLUDERGN))) hRegion = 0;
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if (((Flags ^ dce->DCXflags) & (DCX_INTERSECTRGN | DCX_EXCLUDERGN)) &&
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(dce->hClipRgn != hRegion))
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{
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// if the extra clip region has changed, get rid of the old one
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/* DCE_DeleteClipRgn(dce); */
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}
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dce->hwndCurrent = hWnd;
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dce->hClipRgn = hRegion;
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dce->DCXflags = Flags & (DCX_PARENTCLIP | DCX_CLIPSIBLINGS | DCX_CLIPCHILDREN |
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DCX_CACHE | DCX_WINDOW | DCX_WINDOWPAINT |
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DCX_KEEPCLIPRGN | DCX_INTERSECTRGN | DCX_EXCLUDERGN);
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dce->DCXflags |= DCX_DCEBUSY;
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dce->DCXflags &= ~DCX_DCEDIRTY;
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hdc = dce->hDC;
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/* if (bUpdateVisRgn) SetHookFlags(hdc, DCHF_INVALIDATEVISRGN); // force update */
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/* if (!USER_Driver.pGetDC(hWnd, hdc, hRegion, Flags)) hdc = 0; */
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DPRINT("(%04x,%04x,0x%lx): returning %04x\n", hWnd, hRegion, Flags, hdc);
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END:
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/* WIN_ReleasePtr(Window); */
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return hdc;
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}
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/* EOF */
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@ -1,4 +1,4 @@
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/* $Id: window.c,v 1.9 2002/07/17 21:04:57 dwelch Exp $
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/* $Id: window.c,v 1.10 2002/08/24 11:09:17 jfilby Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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@ -85,6 +85,16 @@ W32kIsDesktopWindow(HWND hWnd)
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return(IsDesktop);
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}
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HWND W32kGetDesktopWindow()
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{
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return W32kGetActiveDesktop()->DesktopWindow;
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}
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HWND W32kGetParentWindow(HWND hWnd)
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{
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return W32kGetWindowObject(hWnd)->ParentHandle;
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}
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PWINDOW_OBJECT
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W32kGetWindowObject(HWND hWnd)
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{
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@ -776,6 +786,7 @@ NtUserSetInternalWindowPos(DWORD Unknown0,
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UNIMPLEMENTED
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return 0;
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}
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DWORD STDCALL
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