mirror of
https://github.com/reactos/wine.git
synced 2024-11-29 14:40:56 +00:00
137 lines
3.8 KiB
C
137 lines
3.8 KiB
C
/*
|
|
* Undocumented SmoothScrollWindow function from COMCTL32.DLL
|
|
*
|
|
* Copyright 2000 Marcus Meissner <marcus@jet.franken.de>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* TODO
|
|
* - actually add smooth scrolling
|
|
*/
|
|
|
|
#include <stdarg.h>
|
|
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "winreg.h"
|
|
#include "winerror.h"
|
|
#include "wingdi.h"
|
|
#include "winuser.h"
|
|
#include "winnls.h"
|
|
#include "commctrl.h"
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(commctrl);
|
|
|
|
static DWORD smoothscroll = 2;
|
|
|
|
typedef BOOL (CALLBACK *SCROLLWINDOWEXPROC)(HWND,INT,INT,LPRECT,LPRECT,HRGN,LPRECT,DWORD);
|
|
typedef struct tagSMOOTHSCROLLSTRUCT {
|
|
DWORD dwSize;
|
|
DWORD x2;
|
|
HWND hwnd;
|
|
DWORD dx;
|
|
|
|
DWORD dy;
|
|
LPRECT lpscrollrect;
|
|
LPRECT lpcliprect;
|
|
HRGN hrgnupdate;
|
|
|
|
LPRECT lpupdaterect;
|
|
DWORD flags;
|
|
DWORD stepinterval;
|
|
DWORD dx_step;
|
|
|
|
DWORD dy_step;
|
|
SCROLLWINDOWEXPROC scrollfun; /* same parameters as ScrollWindowEx */
|
|
} SMOOTHSCROLLSTRUCT;
|
|
|
|
/**************************************************************************
|
|
* SmoothScrollWindow [COMCTL32.382]
|
|
*
|
|
* Lots of magic for smooth scrolling windows.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*
|
|
* BUGS
|
|
* Currently only scrolls ONCE. The comctl32 implementation uses GetTickCount
|
|
* and what else to do smooth scrolling.
|
|
*/
|
|
BOOL WINAPI SmoothScrollWindow( SMOOTHSCROLLSTRUCT *smooth ) {
|
|
LPRECT lpupdaterect = smooth->lpupdaterect;
|
|
HRGN hrgnupdate = smooth->hrgnupdate;
|
|
RECT tmprect;
|
|
BOOL ret = TRUE;
|
|
DWORD flags = smooth->flags;
|
|
|
|
if (smooth->dwSize!=sizeof(SMOOTHSCROLLSTRUCT))
|
|
return FALSE;
|
|
|
|
if (!lpupdaterect)
|
|
lpupdaterect = &tmprect;
|
|
SetRectEmpty(lpupdaterect);
|
|
|
|
if (!(flags & 0x40000)) { /* no override, use system wide defaults */
|
|
if (smoothscroll == 2) {
|
|
HKEY hkey;
|
|
|
|
smoothscroll = 0;
|
|
if (!RegOpenKeyA(HKEY_CURRENT_USER,"Control Panel\\Desktop",&hkey)) {
|
|
DWORD len = 4;
|
|
|
|
RegQueryValueExA(hkey,"SmoothScroll",0,0,(LPBYTE)&smoothscroll,&len);
|
|
RegCloseKey(hkey);
|
|
}
|
|
}
|
|
if (!smoothscroll)
|
|
flags |= 0x20000;
|
|
}
|
|
|
|
if (flags & 0x20000) { /* are we doing jump scrolling? */
|
|
if ((smooth->x2 & 1) && smooth->scrollfun)
|
|
return smooth->scrollfun(
|
|
smooth->hwnd,smooth->dx,smooth->dy,smooth->lpscrollrect,
|
|
smooth->lpcliprect,hrgnupdate,lpupdaterect,
|
|
flags & 0xffff
|
|
);
|
|
else
|
|
return ScrollWindowEx(
|
|
smooth->hwnd,smooth->dx,smooth->dy,smooth->lpscrollrect,
|
|
smooth->lpcliprect,hrgnupdate,lpupdaterect,
|
|
flags & 0xffff
|
|
);
|
|
}
|
|
|
|
FIXME("(hwnd=%p,flags=%lx,x2=%lx): should smooth scroll here.\n",
|
|
smooth->hwnd,flags,smooth->x2
|
|
);
|
|
/* FIXME: do timer based smooth scrolling */
|
|
if ((smooth->x2 & 1) && smooth->scrollfun)
|
|
return smooth->scrollfun(
|
|
smooth->hwnd,smooth->dx,smooth->dy,smooth->lpscrollrect,
|
|
smooth->lpcliprect,hrgnupdate,lpupdaterect,
|
|
flags & 0xffff
|
|
);
|
|
else
|
|
return ScrollWindowEx(
|
|
smooth->hwnd,smooth->dx,smooth->dy,smooth->lpscrollrect,
|
|
smooth->lpcliprect,hrgnupdate,lpupdaterect,
|
|
flags & 0xffff
|
|
);
|
|
return ret;
|
|
}
|