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winex11: Add a helper function to store property data. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2016-09-20 11:32:08 +09:00
parent 4e1514127b
commit 2df558af9c
1 changed files with 30 additions and 15 deletions
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45
dlls/winex11.drv/clipboard.c
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@ -655,6 +655,33 @@ static BOOL X11DRV_CLIPBOARD_RenderFormat(Display *display, LPWINE_CLIPDATA lpDa
}
/**************************************************************************
* put_property
*
* Put data as a property on the specified window.
*/
static void put_property( Display *display, Window win, Atom prop, Atom type, int format,
const void *ptr, size_t size )
{
const unsigned char *data = ptr;
int mode = PropModeReplace;
size_t width = (format == 32) ? sizeof(long) : format / 8;
size_t max_size = XExtendedMaxRequestSize( display ) * 4;
if (!max_size) max_size = XMaxRequestSize( display ) * 4;
max_size -= 64; /* request overhead */
do
{
size_t count = min( size, max_size / width );
XChangeProperty( display, win, prop, type, format, mode, data, count );
mode = PropModeAppend;
size -= count;
data += count * width;
} while (size > 0);
}
/***********************************************************************
* bitmap_info_size
*
@ -2781,10 +2808,7 @@ static Atom X11DRV_SelectionRequest_TARGETS( Display *display, Window requestor,
targets[i++] = format->atom;
}
/* We may want to consider setting the type to xaTargets instead,
* in case some apps expect this instead of XA_ATOM */
XChangeProperty(display, requestor, rprop, XA_ATOM, 32,
PropModeReplace, (unsigned char *)targets, cTargets);
put_property( display, requestor, rprop, XA_ATOM, 32, targets, cTargets );
HeapFree(GetProcessHeap(), 0, targets);
@ -2950,19 +2974,10 @@ static void X11DRV_HandleSelectionRequest( HWND hWnd, XSelectionRequestEvent *ev
if (hClipData && (lpClipData = GlobalLock(hClipData)))
{
int mode = PropModeReplace;
TRACE("\tUpdating property %s, %d bytes\n",
debugstr_format(lpFormat->id), cBytes);
do
{
int nelements = min(cBytes, 65536);
XChangeProperty(display, request, rprop, event->target,
8, mode, lpClipData, nelements);
mode = PropModeAppend;
cBytes -= nelements;
lpClipData += nelements;
} while (cBytes > 0);
put_property( display, request, rprop, event->target, 8, lpClipData, cBytes );
GlobalUnlock(hClipData);
GlobalFree(hClipData);