Sweden-Number/dlls/user32/winpos.c

1287 lines
40 KiB
C

/*
* Window position related functions.
*
* Copyright 1993, 1994, 1995 Alexandre Julliard
* 1995, 1996, 1999 Alex Korobka
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <string.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "user_private.h"
#include "winerror.h"
#include "controls.h"
#include "win.h"
#include "wine/server.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(win);
#define HAS_THICKFRAME(style) \
(((style) & WS_THICKFRAME) && \
!(((style) & (WS_DLGFRAME|WS_BORDER)) == WS_DLGFRAME))
#define ON_LEFT_BORDER(hit) \
(((hit) == HTLEFT) || ((hit) == HTTOPLEFT) || ((hit) == HTBOTTOMLEFT))
#define ON_RIGHT_BORDER(hit) \
(((hit) == HTRIGHT) || ((hit) == HTTOPRIGHT) || ((hit) == HTBOTTOMRIGHT))
#define ON_TOP_BORDER(hit) \
(((hit) == HTTOP) || ((hit) == HTTOPLEFT) || ((hit) == HTTOPRIGHT))
#define ON_BOTTOM_BORDER(hit) \
(((hit) == HTBOTTOM) || ((hit) == HTBOTTOMLEFT) || ((hit) == HTBOTTOMRIGHT))
#define PLACE_MIN 0x0001
#define PLACE_MAX 0x0002
#define PLACE_RECT 0x0004
/***********************************************************************
* SwitchToThisWindow (USER32.@)
*/
void WINAPI SwitchToThisWindow( HWND hwnd, BOOL alt_tab )
{
if (IsIconic( hwnd )) NtUserShowWindow( hwnd, SW_RESTORE );
else BringWindowToTop( hwnd );
}
/***********************************************************************
* GetWindowRect (USER32.@)
*/
BOOL WINAPI GetWindowRect( HWND hwnd, LPRECT rect )
{
BOOL ret = NtUserCallHwndParam( hwnd, (UINT_PTR)rect, NtUserGetWindowRect );
if (ret) TRACE( "hwnd %p %s\n", hwnd, wine_dbgstr_rect(rect) );
return ret;
}
/***********************************************************************
* GetWindowRgn (USER32.@)
*/
int WINAPI GetWindowRgn( HWND hwnd, HRGN hrgn )
{
return NtUserGetWindowRgnEx( hwnd, hrgn, 0 );
}
/***********************************************************************
* GetWindowRgnBox (USER32.@)
*/
int WINAPI GetWindowRgnBox( HWND hwnd, LPRECT prect )
{
int ret = ERROR;
HRGN hrgn;
if (!prect)
return ERROR;
if ((hrgn = CreateRectRgn(0, 0, 0, 0)))
{
if ((ret = GetWindowRgn( hwnd, hrgn )) != ERROR )
ret = GetRgnBox( hrgn, prect );
DeleteObject(hrgn);
}
return ret;
}
/***********************************************************************
* GetClientRect (USER32.@)
*/
BOOL WINAPI GetClientRect( HWND hwnd, LPRECT rect )
{
return NtUserCallHwndParam( hwnd, (UINT_PTR)rect, NtUserGetClientRect );
}
/***********************************************************************
* list_children_from_point
*
* Get the list of children that can contain point from the server.
* Point is in screen coordinates.
* Returned list must be freed by caller.
*/
static HWND *list_children_from_point( HWND hwnd, POINT pt )
{
HWND *list;
int i, size = 128;
for (;;)
{
int count = 0;
if (!(list = HeapAlloc( GetProcessHeap(), 0, size * sizeof(HWND) ))) break;
SERVER_START_REQ( get_window_children_from_point )
{
req->parent = wine_server_user_handle( hwnd );
req->x = pt.x;
req->y = pt.y;
req->dpi = get_thread_dpi();
wine_server_set_reply( req, list, (size-1) * sizeof(user_handle_t) );
if (!wine_server_call( req )) count = reply->count;
}
SERVER_END_REQ;
if (count && count < size)
{
/* start from the end since HWND is potentially larger than user_handle_t */
for (i = count - 1; i >= 0; i--)
list[i] = wine_server_ptr_handle( ((user_handle_t *)list)[i] );
list[count] = 0;
return list;
}
HeapFree( GetProcessHeap(), 0, list );
if (!count) break;
size = count + 1; /* restart with a large enough buffer */
}
return NULL;
}
/***********************************************************************
* WINPOS_WindowFromPoint
*
* Find the window and hittest for a given point.
*/
HWND WINPOS_WindowFromPoint( HWND hwndScope, POINT pt, INT *hittest )
{
int i, res;
HWND ret, *list;
POINT win_pt;
if (!hwndScope) hwndScope = GetDesktopWindow();
*hittest = HTNOWHERE;
if (!(list = list_children_from_point( hwndScope, pt ))) return 0;
/* now determine the hittest */
for (i = 0; list[i]; i++)
{
LONG style = GetWindowLongW( list[i], GWL_STYLE );
/* If window is minimized or disabled, return at once */
if (style & WS_DISABLED)
{
*hittest = HTERROR;
break;
}
/* Send WM_NCCHITTEST (if same thread) */
if (!WIN_IsCurrentThread( list[i] ))
{
*hittest = HTCLIENT;
break;
}
win_pt = point_thread_to_win_dpi( list[i], pt );
res = SendMessageW( list[i], WM_NCHITTEST, 0, MAKELPARAM( win_pt.x, win_pt.y ));
if (res != HTTRANSPARENT)
{
*hittest = res; /* Found the window */
break;
}
/* continue search with next window in z-order */
}
ret = list[i];
HeapFree( GetProcessHeap(), 0, list );
TRACE( "scope %p (%d,%d) returning %p\n", hwndScope, pt.x, pt.y, ret );
return ret;
}
/*******************************************************************
* WindowFromPoint (USER32.@)
*/
HWND WINAPI WindowFromPoint( POINT pt )
{
return NtUserWindowFromPoint( pt.x, pt.y );
}
/*******************************************************************
* ChildWindowFromPoint (USER32.@)
*/
HWND WINAPI ChildWindowFromPoint( HWND hwndParent, POINT pt )
{
return ChildWindowFromPointEx( hwndParent, pt, CWP_ALL );
}
/*******************************************************************
* RealChildWindowFromPoint (USER32.@)
*/
HWND WINAPI RealChildWindowFromPoint( HWND hwndParent, POINT pt )
{
return ChildWindowFromPointEx( hwndParent, pt, CWP_SKIPTRANSPARENT | CWP_SKIPINVISIBLE );
}
/*******************************************************************
* ChildWindowFromPointEx (USER32.@)
*/
HWND WINAPI ChildWindowFromPointEx( HWND hwndParent, POINT pt, UINT uFlags)
{
/* pt is in the client coordinates */
HWND *list;
int i;
RECT rect;
HWND retvalue;
GetClientRect( hwndParent, &rect );
if (!PtInRect( &rect, pt )) return 0;
if (!(list = WIN_ListChildren( hwndParent ))) return hwndParent;
for (i = 0; list[i]; i++)
{
if (!WIN_GetRectangles( list[i], COORDS_PARENT, &rect, NULL )) continue;
if (!PtInRect( &rect, pt )) continue;
if (uFlags & (CWP_SKIPINVISIBLE|CWP_SKIPDISABLED))
{
LONG style = GetWindowLongW( list[i], GWL_STYLE );
if ((uFlags & CWP_SKIPINVISIBLE) && !(style & WS_VISIBLE)) continue;
if ((uFlags & CWP_SKIPDISABLED) && (style & WS_DISABLED)) continue;
}
if (uFlags & CWP_SKIPTRANSPARENT)
{
if (GetWindowLongW( list[i], GWL_EXSTYLE ) & WS_EX_TRANSPARENT) continue;
}
break;
}
retvalue = list[i];
HeapFree( GetProcessHeap(), 0, list );
if (!retvalue) retvalue = hwndParent;
return retvalue;
}
/*******************************************************************
* WINPOS_GetWinOffset
*
* Calculate the offset between the origin of the two windows. Used
* to implement MapWindowPoints.
*/
static BOOL WINPOS_GetWinOffset( HWND hwndFrom, HWND hwndTo, BOOL *mirrored, POINT *ret_offset )
{
WND * wndPtr;
POINT offset;
BOOL mirror_from, mirror_to, ret;
HWND hwnd;
offset.x = offset.y = 0;
*mirrored = mirror_from = mirror_to = FALSE;
/* Translate source window origin to screen coords */
if (hwndFrom)
{
if (!(wndPtr = WIN_GetPtr( hwndFrom )))
{
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return FALSE;
}
if (wndPtr == WND_OTHER_PROCESS) goto other_process;
if (wndPtr != WND_DESKTOP)
{
if (wndPtr->dwExStyle & WS_EX_LAYOUTRTL)
{
mirror_from = TRUE;
offset.x += wndPtr->client_rect.right - wndPtr->client_rect.left;
}
while (wndPtr->parent)
{
offset.x += wndPtr->client_rect.left;
offset.y += wndPtr->client_rect.top;
hwnd = wndPtr->parent;
WIN_ReleasePtr( wndPtr );
if (!(wndPtr = WIN_GetPtr( hwnd ))) break;
if (wndPtr == WND_OTHER_PROCESS) goto other_process;
if (wndPtr == WND_DESKTOP) break;
if (wndPtr->flags & WIN_CHILDREN_MOVED)
{
WIN_ReleasePtr( wndPtr );
goto other_process;
}
}
if (wndPtr && wndPtr != WND_DESKTOP) WIN_ReleasePtr( wndPtr );
offset = point_win_to_thread_dpi( hwndFrom, offset );
}
}
/* Translate origin to destination window coords */
if (hwndTo)
{
if (!(wndPtr = WIN_GetPtr( hwndTo )))
{
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return FALSE;
}
if (wndPtr == WND_OTHER_PROCESS) goto other_process;
if (wndPtr != WND_DESKTOP)
{
POINT pt = { 0, 0 };
if (wndPtr->dwExStyle & WS_EX_LAYOUTRTL)
{
mirror_to = TRUE;
pt.x += wndPtr->client_rect.right - wndPtr->client_rect.left;
}
while (wndPtr->parent)
{
pt.x += wndPtr->client_rect.left;
pt.y += wndPtr->client_rect.top;
hwnd = wndPtr->parent;
WIN_ReleasePtr( wndPtr );
if (!(wndPtr = WIN_GetPtr( hwnd ))) break;
if (wndPtr == WND_OTHER_PROCESS) goto other_process;
if (wndPtr == WND_DESKTOP) break;
if (wndPtr->flags & WIN_CHILDREN_MOVED)
{
WIN_ReleasePtr( wndPtr );
goto other_process;
}
}
if (wndPtr && wndPtr != WND_DESKTOP) WIN_ReleasePtr( wndPtr );
pt = point_win_to_thread_dpi( hwndTo, pt );
offset.x -= pt.x;
offset.y -= pt.y;
}
}
*mirrored = mirror_from ^ mirror_to;
if (mirror_from) offset.x = -offset.x;
*ret_offset = offset;
return TRUE;
other_process: /* one of the parents may belong to another process, do it the hard way */
SERVER_START_REQ( get_windows_offset )
{
req->from = wine_server_user_handle( hwndFrom );
req->to = wine_server_user_handle( hwndTo );
req->dpi = get_thread_dpi();
if ((ret = !wine_server_call_err( req )))
{
ret_offset->x = reply->x;
ret_offset->y = reply->y;
*mirrored = reply->mirror;
}
}
SERVER_END_REQ;
return ret;
}
/*******************************************************************
* MapWindowPoints (USER32.@)
*/
INT WINAPI MapWindowPoints( HWND hwndFrom, HWND hwndTo, LPPOINT lppt, UINT count )
{
BOOL mirrored;
POINT offset;
UINT i;
if (!WINPOS_GetWinOffset( hwndFrom, hwndTo, &mirrored, &offset )) return 0;
for (i = 0; i < count; i++)
{
lppt[i].x += offset.x;
lppt[i].y += offset.y;
if (mirrored) lppt[i].x = -lppt[i].x;
}
if (mirrored && count == 2) /* special case for rectangle */
{
int tmp = lppt[0].x;
lppt[0].x = lppt[1].x;
lppt[1].x = tmp;
}
return MAKELONG( LOWORD(offset.x), LOWORD(offset.y) );
}
/*******************************************************************
* ClientToScreen (USER32.@)
*/
BOOL WINAPI ClientToScreen( HWND hwnd, LPPOINT lppnt )
{
POINT offset;
BOOL mirrored;
if (!hwnd)
{
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return FALSE;
}
if (!WINPOS_GetWinOffset( hwnd, 0, &mirrored, &offset )) return FALSE;
lppnt->x += offset.x;
lppnt->y += offset.y;
if (mirrored) lppnt->x = -lppnt->x;
return TRUE;
}
/*******************************************************************
* ScreenToClient (USER32.@)
*/
BOOL WINAPI ScreenToClient( HWND hwnd, POINT *pt )
{
return NtUserCallHwndParam( hwnd, (UINT_PTR)pt, NtUserScreenToClient );
}
/***********************************************************************
* IsIconic (USER32.@)
*/
BOOL WINAPI IsIconic(HWND hWnd)
{
return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MINIMIZE) != 0;
}
/***********************************************************************
* IsZoomed (USER32.@)
*/
BOOL WINAPI IsZoomed(HWND hWnd)
{
return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MAXIMIZE) != 0;
}
/*******************************************************************
* AllowSetForegroundWindow (USER32.@)
*/
BOOL WINAPI AllowSetForegroundWindow( DWORD procid )
{
/* FIXME: If Win98/2000 style SetForegroundWindow behavior is
* implemented, then fix this function. */
return TRUE;
}
/*******************************************************************
* LockSetForegroundWindow (USER32.@)
*/
BOOL WINAPI LockSetForegroundWindow( UINT lockcode )
{
/* FIXME: If Win98/2000 style SetForegroundWindow behavior is
* implemented, then fix this function. */
return TRUE;
}
/***********************************************************************
* BringWindowToTop (USER32.@)
*/
BOOL WINAPI BringWindowToTop( HWND hwnd )
{
return NtUserSetWindowPos( hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE );
}
/*******************************************************************
* get_work_rect
*
* Get the work area that a maximized window can cover, depending on style.
*/
static BOOL get_work_rect( HWND hwnd, RECT *rect )
{
HMONITOR monitor = MonitorFromWindow( hwnd, MONITOR_DEFAULTTOPRIMARY );
MONITORINFO mon_info;
DWORD style;
if (!monitor) return FALSE;
mon_info.cbSize = sizeof(mon_info);
GetMonitorInfoW( monitor, &mon_info );
*rect = mon_info.rcMonitor;
style = GetWindowLongW( hwnd, GWL_STYLE );
if (style & WS_MAXIMIZEBOX)
{
if ((style & WS_CAPTION) == WS_CAPTION || !(style & (WS_CHILD | WS_POPUP)))
*rect = mon_info.rcWork;
}
return TRUE;
}
/*******************************************************************
* WINPOS_GetMinMaxInfo
*
* Get the minimized and maximized information for a window.
*/
MINMAXINFO WINPOS_GetMinMaxInfo( HWND hwnd )
{
MINMAXINFO info;
NtUserCallHwndParam( hwnd, (UINT_PTR)&info, NtUserGetMinMaxInfo );
return info;
}
/***********************************************************************
* GetInternalWindowPos (USER32.@)
*/
UINT WINAPI GetInternalWindowPos( HWND hwnd, LPRECT rectWnd,
LPPOINT ptIcon )
{
WINDOWPLACEMENT wndpl;
wndpl.length = sizeof(wndpl);
if (GetWindowPlacement( hwnd, &wndpl ))
{
if (rectWnd) *rectWnd = wndpl.rcNormalPosition;
if (ptIcon) *ptIcon = wndpl.ptMinPosition;
return wndpl.showCmd;
}
return 0;
}
static RECT get_maximized_work_rect( HWND hwnd )
{
RECT work_rect = { 0 };
if ((GetWindowLongW( hwnd, GWL_STYLE ) & (WS_MINIMIZE | WS_MAXIMIZE)) == WS_MAXIMIZE)
{
if (!get_work_rect( hwnd, &work_rect ))
work_rect = get_primary_monitor_rect();
}
return work_rect;
}
/*******************************************************************
* update_maximized_pos
*
* For top level windows covering the work area, we might have to
* "forget" the maximized position. Windows presumably does this
* to avoid situations where the border style changes, which would
* lead the window to be outside the screen, or the window gets
* reloaded on a different screen, and the "saved" position no
* longer applies to it (despite being maximized).
*
* Some applications (e.g. Imperiums: Greek Wars) depend on this.
*/
static void update_maximized_pos( WND *wnd, RECT *work_rect )
{
if (wnd->parent && wnd->parent != GetDesktopWindow())
return;
if (wnd->dwStyle & WS_MAXIMIZE)
{
if (wnd->window_rect.left <= work_rect->left && wnd->window_rect.top <= work_rect->top &&
wnd->window_rect.right >= work_rect->right && wnd->window_rect.bottom >= work_rect->bottom)
wnd->max_pos.x = wnd->max_pos.y = -1;
}
else
wnd->max_pos.x = wnd->max_pos.y = -1;
}
/***********************************************************************
* GetWindowPlacement (USER32.@)
*
* Win95:
* Fails if wndpl->length of Win95 (!) apps is invalid.
*/
BOOL WINAPI GetWindowPlacement( HWND hwnd, WINDOWPLACEMENT *wndpl )
{
return NtUserCallHwndParam( hwnd, (UINT_PTR)wndpl, NtUserGetWindowPlacement );
}
/* make sure the specified rect is visible on screen */
static void make_rect_onscreen( RECT *rect )
{
MONITORINFO info;
HMONITOR monitor = MonitorFromRect( rect, MONITOR_DEFAULTTONEAREST );
info.cbSize = sizeof(info);
if (!monitor || !GetMonitorInfoW( monitor, &info )) return;
/* FIXME: map coordinates from rcWork to rcMonitor */
if (rect->right <= info.rcWork.left)
{
rect->right += info.rcWork.left - rect->left;
rect->left = info.rcWork.left;
}
else if (rect->left >= info.rcWork.right)
{
rect->left += info.rcWork.right - rect->right;
rect->right = info.rcWork.right;
}
if (rect->bottom <= info.rcWork.top)
{
rect->bottom += info.rcWork.top - rect->top;
rect->top = info.rcWork.top;
}
else if (rect->top >= info.rcWork.bottom)
{
rect->top += info.rcWork.bottom - rect->bottom;
rect->bottom = info.rcWork.bottom;
}
}
/* make sure the specified point is visible on screen */
static void make_point_onscreen( POINT *pt )
{
RECT rect;
SetRect( &rect, pt->x, pt->y, pt->x + 1, pt->y + 1 );
make_rect_onscreen( &rect );
pt->x = rect.left;
pt->y = rect.top;
}
/***********************************************************************
* WINPOS_SetPlacement
*/
static BOOL WINPOS_SetPlacement( HWND hwnd, const WINDOWPLACEMENT *wndpl, UINT flags )
{
DWORD style;
RECT work_rect = get_maximized_work_rect( hwnd );
WND *pWnd = WIN_GetPtr( hwnd );
WINDOWPLACEMENT wp = *wndpl;
if (flags & PLACE_MIN) make_point_onscreen( &wp.ptMinPosition );
if (flags & PLACE_MAX) make_point_onscreen( &wp.ptMaxPosition );
if (flags & PLACE_RECT) make_rect_onscreen( &wp.rcNormalPosition );
TRACE( "%p: setting min %d,%d max %d,%d normal %s flags %x adjusted to min %d,%d max %d,%d normal %s\n",
hwnd, wndpl->ptMinPosition.x, wndpl->ptMinPosition.y,
wndpl->ptMaxPosition.x, wndpl->ptMaxPosition.y,
wine_dbgstr_rect(&wndpl->rcNormalPosition), flags,
wp.ptMinPosition.x, wp.ptMinPosition.y, wp.ptMaxPosition.x, wp.ptMaxPosition.y,
wine_dbgstr_rect(&wp.rcNormalPosition) );
if (!pWnd || pWnd == WND_OTHER_PROCESS || pWnd == WND_DESKTOP) return FALSE;
if (flags & PLACE_MIN) pWnd->min_pos = point_thread_to_win_dpi( hwnd, wp.ptMinPosition );
if (flags & PLACE_MAX)
{
pWnd->max_pos = point_thread_to_win_dpi( hwnd, wp.ptMaxPosition );
update_maximized_pos( pWnd, &work_rect );
}
if (flags & PLACE_RECT) pWnd->normal_rect = rect_thread_to_win_dpi( hwnd, wp.rcNormalPosition );
style = pWnd->dwStyle;
WIN_ReleasePtr( pWnd );
if( style & WS_MINIMIZE )
{
if (flags & PLACE_MIN)
{
NtUserSetWindowPos( hwnd, 0, wp.ptMinPosition.x, wp.ptMinPosition.y, 0, 0,
SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
}
}
else if( style & WS_MAXIMIZE )
{
if (flags & PLACE_MAX)
NtUserSetWindowPos( hwnd, 0, wp.ptMaxPosition.x, wp.ptMaxPosition.y, 0, 0,
SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
}
else if( flags & PLACE_RECT )
NtUserSetWindowPos( hwnd, 0, wp.rcNormalPosition.left, wp.rcNormalPosition.top,
wp.rcNormalPosition.right - wp.rcNormalPosition.left,
wp.rcNormalPosition.bottom - wp.rcNormalPosition.top,
SWP_NOZORDER | SWP_NOACTIVATE );
NtUserShowWindow( hwnd, wndpl->showCmd );
if (IsIconic( hwnd ))
{
/* SDK: ...valid only the next time... */
if( wndpl->flags & WPF_RESTORETOMAXIMIZED )
win_set_flags( hwnd, WIN_RESTORE_MAX, 0 );
}
return TRUE;
}
/***********************************************************************
* SetWindowPlacement (USER32.@)
*
* Win95:
* Fails if wndpl->length of Win95 (!) apps is invalid.
*/
BOOL WINAPI SetWindowPlacement( HWND hwnd, const WINDOWPLACEMENT *wpl )
{
UINT flags = PLACE_MAX | PLACE_RECT;
if (!wpl) return FALSE;
if (wpl->flags & WPF_SETMINPOSITION) flags |= PLACE_MIN;
return WINPOS_SetPlacement( hwnd, wpl, flags );
}
/***********************************************************************
* AnimateWindow (USER32.@)
* Shows/Hides a window with an animation
* NO ANIMATION YET
*/
BOOL WINAPI AnimateWindow(HWND hwnd, DWORD dwTime, DWORD dwFlags)
{
FIXME("partial stub\n");
/* If trying to show/hide and it's already *
* shown/hidden or invalid window, fail with *
* invalid parameter */
if(!IsWindow(hwnd) ||
(IsWindowVisible(hwnd) && !(dwFlags & AW_HIDE)) ||
(!IsWindowVisible(hwnd) && (dwFlags & AW_HIDE)))
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
NtUserShowWindow( hwnd, (dwFlags & AW_HIDE) ? SW_HIDE : ((dwFlags & AW_ACTIVATE) ? SW_SHOW : SW_SHOWNA) );
return TRUE;
}
/***********************************************************************
* SetInternalWindowPos (USER32.@)
*/
void WINAPI SetInternalWindowPos( HWND hwnd, UINT showCmd,
LPRECT rect, LPPOINT pt )
{
WINDOWPLACEMENT wndpl;
UINT flags;
wndpl.length = sizeof(wndpl);
wndpl.showCmd = showCmd;
wndpl.flags = flags = 0;
if( pt )
{
flags |= PLACE_MIN;
wndpl.flags |= WPF_SETMINPOSITION;
wndpl.ptMinPosition = *pt;
}
if( rect )
{
flags |= PLACE_RECT;
wndpl.rcNormalPosition = *rect;
}
WINPOS_SetPlacement( hwnd, &wndpl, flags );
}
/*******************************************************************
* can_activate_window
*
* Check if we can activate the specified window.
*/
static BOOL can_activate_window( HWND hwnd )
{
LONG style;
if (!hwnd) return FALSE;
style = GetWindowLongW( hwnd, GWL_STYLE );
if (!(style & WS_VISIBLE)) return FALSE;
if ((style & (WS_POPUP|WS_CHILD)) == WS_CHILD) return FALSE;
return !(style & WS_DISABLED);
}
/*******************************************************************
* WINPOS_ActivateOtherWindow
*
* Activates window other than pWnd.
*/
void WINPOS_ActivateOtherWindow(HWND hwnd)
{
HWND hwndTo, fg;
if ((GetWindowLongW( hwnd, GWL_STYLE ) & WS_POPUP) && (hwndTo = GetWindow( hwnd, GW_OWNER )))
{
hwndTo = NtUserGetAncestor( hwndTo, GA_ROOT );
if (can_activate_window( hwndTo )) goto done;
}
hwndTo = hwnd;
for (;;)
{
if (!(hwndTo = GetWindow( hwndTo, GW_HWNDNEXT ))) break;
if (can_activate_window( hwndTo )) goto done;
}
hwndTo = GetTopWindow( 0 );
for (;;)
{
if (hwndTo == hwnd)
{
hwndTo = 0;
break;
}
if (can_activate_window( hwndTo )) goto done;
if (!(hwndTo = GetWindow( hwndTo, GW_HWNDNEXT ))) break;
}
done:
fg = NtUserGetForegroundWindow();
TRACE("win = %p fg = %p\n", hwndTo, fg);
if (!fg || (hwnd == fg))
{
if (SetForegroundWindow( hwndTo )) return;
}
if (!NtUserSetActiveWindow( hwndTo )) NtUserSetActiveWindow( 0 );
}
/***********************************************************************
* WINPOS_HandleWindowPosChanging
*
* Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
*/
LONG WINPOS_HandleWindowPosChanging( HWND hwnd, WINDOWPOS *winpos )
{
LONG style = GetWindowLongW( hwnd, GWL_STYLE );
if (winpos->flags & SWP_NOSIZE) return 0;
if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
{
MINMAXINFO info = WINPOS_GetMinMaxInfo( hwnd );
winpos->cx = min( winpos->cx, info.ptMaxTrackSize.x );
winpos->cy = min( winpos->cy, info.ptMaxTrackSize.y );
if (!(style & WS_MINIMIZE))
{
winpos->cx = max( winpos->cx, info.ptMinTrackSize.x );
winpos->cy = max( winpos->cy, info.ptMinTrackSize.y );
}
}
return 0;
}
/***********************************************************************
* BeginDeferWindowPos (USER32.@)
*/
HDWP WINAPI BeginDeferWindowPos( INT count )
{
return UlongToHandle( NtUserCallOneParam( count, NtUserBeginDeferWindowPos ));
}
/***********************************************************************
* DeferWindowPos (USER32.@)
*/
HDWP WINAPI DeferWindowPos( HDWP hdwp, HWND hwnd, HWND after, INT x, INT y,
INT cx, INT cy, UINT flags )
{
return NtUserDeferWindowPosAndBand( hdwp, hwnd, after, x, y, cx, cy, flags, 0, 0 );
}
/***********************************************************************
* EndDeferWindowPos (USER32.@)
*/
BOOL WINAPI EndDeferWindowPos( HDWP hdwp )
{
return NtUserEndDeferWindowPosEx( hdwp, FALSE );
}
/***********************************************************************
* ArrangeIconicWindows (USER32.@)
*/
UINT WINAPI ArrangeIconicWindows( HWND parent )
{
return NtUserCallHwnd( parent, NtUserArrangeIconicWindows );
}
/***********************************************************************
* draw_moving_frame
*
* Draw the frame used when moving or resizing window.
*/
static void draw_moving_frame( HWND parent, HDC hdc, RECT *screen_rect, BOOL thickframe )
{
RECT rect = *screen_rect;
if (parent) MapWindowPoints( 0, parent, (POINT *)&rect, 2 );
if (thickframe)
{
const int width = GetSystemMetrics(SM_CXFRAME);
const int height = GetSystemMetrics(SM_CYFRAME);
HBRUSH hbrush = SelectObject( hdc, GetStockObject( GRAY_BRUSH ) );
PatBlt( hdc, rect.left, rect.top,
rect.right - rect.left - width, height, PATINVERT );
PatBlt( hdc, rect.left, rect.top + height, width,
rect.bottom - rect.top - height, PATINVERT );
PatBlt( hdc, rect.left + width, rect.bottom - 1,
rect.right - rect.left - width, -height, PATINVERT );
PatBlt( hdc, rect.right - 1, rect.top, -width,
rect.bottom - rect.top - height, PATINVERT );
SelectObject( hdc, hbrush );
}
else DrawFocusRect( hdc, &rect );
}
/***********************************************************************
* start_size_move
*
* Initialization of a move or resize, when initiated from a menu choice.
* Return hit test code for caption or sizing border.
*/
static LONG start_size_move( HWND hwnd, WPARAM wParam, POINT *capturePoint, LONG style )
{
LONG hittest = 0;
POINT pt;
MSG msg;
RECT rectWindow;
GetWindowRect( hwnd, &rectWindow );
if ((wParam & 0xfff0) == SC_MOVE)
{
/* Move pointer at the center of the caption */
RECT rect = rectWindow;
/* Note: to be exactly centered we should take the different types
* of border into account, but it shouldn't make more than a few pixels
* of difference so let's not bother with that */
rect.top += GetSystemMetrics(SM_CYBORDER);
if (style & WS_SYSMENU)
rect.left += GetSystemMetrics(SM_CXSIZE) + 1;
if (style & WS_MINIMIZEBOX)
rect.right -= GetSystemMetrics(SM_CXSIZE) + 1;
if (style & WS_MAXIMIZEBOX)
rect.right -= GetSystemMetrics(SM_CXSIZE) + 1;
pt.x = (rect.right + rect.left) / 2;
pt.y = rect.top + GetSystemMetrics(SM_CYSIZE)/2;
hittest = HTCAPTION;
*capturePoint = pt;
}
else /* SC_SIZE */
{
NtUserSetCursor( LoadCursorW( 0, (LPWSTR)IDC_SIZEALL ) );
pt.x = pt.y = 0;
while(!hittest)
{
if (!GetMessageW( &msg, 0, 0, 0 )) return 0;
if (CallMsgFilterW( &msg, MSGF_SIZE )) continue;
switch(msg.message)
{
case WM_MOUSEMOVE:
pt.x = min( max( msg.pt.x, rectWindow.left ), rectWindow.right - 1 );
pt.y = min( max( msg.pt.y, rectWindow.top ), rectWindow.bottom - 1 );
hittest = SendMessageW( hwnd, WM_NCHITTEST, 0, MAKELONG( pt.x, pt.y ) );
if ((hittest < HTLEFT) || (hittest > HTBOTTOMRIGHT)) hittest = 0;
break;
case WM_LBUTTONUP:
return 0;
case WM_KEYDOWN:
switch(msg.wParam)
{
case VK_UP:
hittest = HTTOP;
pt.x =(rectWindow.left+rectWindow.right)/2;
pt.y = rectWindow.top + GetSystemMetrics(SM_CYFRAME) / 2;
break;
case VK_DOWN:
hittest = HTBOTTOM;
pt.x =(rectWindow.left+rectWindow.right)/2;
pt.y = rectWindow.bottom - GetSystemMetrics(SM_CYFRAME) / 2;
break;
case VK_LEFT:
hittest = HTLEFT;
pt.x = rectWindow.left + GetSystemMetrics(SM_CXFRAME) / 2;
pt.y =(rectWindow.top+rectWindow.bottom)/2;
break;
case VK_RIGHT:
hittest = HTRIGHT;
pt.x = rectWindow.right - GetSystemMetrics(SM_CXFRAME) / 2;
pt.y =(rectWindow.top+rectWindow.bottom)/2;
break;
case VK_RETURN:
case VK_ESCAPE:
return 0;
}
break;
default:
TranslateMessage( &msg );
DispatchMessageW( &msg );
break;
}
}
*capturePoint = pt;
}
NtUserSetCursorPos( pt.x, pt.y );
SendMessageW( hwnd, WM_SETCURSOR, (WPARAM)hwnd, MAKELONG( hittest, WM_MOUSEMOVE ));
return hittest;
}
/***********************************************************************
* WINPOS_SysCommandSizeMove
*
* Perform SC_MOVE and SC_SIZE commands.
*/
void WINPOS_SysCommandSizeMove( HWND hwnd, WPARAM wParam )
{
MSG msg;
RECT sizingRect, mouseRect, origRect;
HDC hdc;
HWND parent;
LONG hittest = (LONG)(wParam & 0x0f);
WPARAM syscommand = wParam & 0xfff0;
MINMAXINFO minmax;
POINT capturePoint, pt;
LONG style = GetWindowLongW( hwnd, GWL_STYLE );
BOOL thickframe = HAS_THICKFRAME( style );
BOOL moved = FALSE;
DWORD dwPoint = GetMessagePos ();
BOOL DragFullWindows = TRUE;
HMONITOR mon = 0;
if (IsZoomed(hwnd) || !IsWindowVisible(hwnd)) return;
pt.x = (short)LOWORD(dwPoint);
pt.y = (short)HIWORD(dwPoint);
capturePoint = pt;
NtUserClipCursor( NULL );
TRACE("hwnd %p command %04lx, hittest %d, pos %d,%d\n",
hwnd, syscommand, hittest, pt.x, pt.y);
if (syscommand == SC_MOVE)
{
if (!hittest) hittest = start_size_move( hwnd, wParam, &capturePoint, style );
if (!hittest) return;
}
else /* SC_SIZE */
{
if ( hittest && (syscommand != SC_MOUSEMENU) )
hittest += (HTLEFT - WMSZ_LEFT);
else
{
set_capture_window( hwnd, GUI_INMOVESIZE, NULL );
hittest = start_size_move( hwnd, wParam, &capturePoint, style );
if (!hittest)
{
set_capture_window( 0, GUI_INMOVESIZE, NULL );
return;
}
}
}
/* Get min/max info */
minmax = WINPOS_GetMinMaxInfo( hwnd );
WIN_GetRectangles( hwnd, COORDS_PARENT, &sizingRect, NULL );
origRect = sizingRect;
if (style & WS_CHILD)
{
parent = GetParent(hwnd);
GetClientRect( parent, &mouseRect );
MapWindowPoints( parent, 0, (LPPOINT)&mouseRect, 2 );
MapWindowPoints( parent, 0, (LPPOINT)&sizingRect, 2 );
}
else
{
parent = 0;
mouseRect = get_virtual_screen_rect();
mon = MonitorFromPoint( pt, MONITOR_DEFAULTTONEAREST );
}
if (ON_LEFT_BORDER(hittest))
{
mouseRect.left = max( mouseRect.left, sizingRect.right-minmax.ptMaxTrackSize.x+capturePoint.x-sizingRect.left );
mouseRect.right = min( mouseRect.right, sizingRect.right-minmax.ptMinTrackSize.x+capturePoint.x-sizingRect.left );
}
else if (ON_RIGHT_BORDER(hittest))
{
mouseRect.left = max( mouseRect.left, sizingRect.left+minmax.ptMinTrackSize.x+capturePoint.x-sizingRect.right );
mouseRect.right = min( mouseRect.right, sizingRect.left+minmax.ptMaxTrackSize.x+capturePoint.x-sizingRect.right );
}
if (ON_TOP_BORDER(hittest))
{
mouseRect.top = max( mouseRect.top, sizingRect.bottom-minmax.ptMaxTrackSize.y+capturePoint.y-sizingRect.top );
mouseRect.bottom = min( mouseRect.bottom,sizingRect.bottom-minmax.ptMinTrackSize.y+capturePoint.y-sizingRect.top);
}
else if (ON_BOTTOM_BORDER(hittest))
{
mouseRect.top = max( mouseRect.top, sizingRect.top+minmax.ptMinTrackSize.y+capturePoint.y-sizingRect.bottom );
mouseRect.bottom = min( mouseRect.bottom, sizingRect.top+minmax.ptMaxTrackSize.y+capturePoint.y-sizingRect.bottom );
}
/* Retrieve a default cache DC (without using the window style) */
hdc = NtUserGetDCEx( parent, 0, DCX_CACHE );
/* we only allow disabling the full window drag for child windows */
if (parent) SystemParametersInfoW( SPI_GETDRAGFULLWINDOWS, 0, &DragFullWindows, 0 );
/* repaint the window before moving it around */
NtUserRedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_ALLCHILDREN );
SendMessageW( hwnd, WM_ENTERSIZEMOVE, 0, 0 );
set_capture_window( hwnd, GUI_INMOVESIZE, NULL );
while(1)
{
int dx = 0, dy = 0;
if (!GetMessageW( &msg, 0, 0, 0 )) break;
if (CallMsgFilterW( &msg, MSGF_SIZE )) continue;
/* Exit on button-up, Return, or Esc */
if ((msg.message == WM_LBUTTONUP) ||
((msg.message == WM_KEYDOWN) &&
((msg.wParam == VK_RETURN) || (msg.wParam == VK_ESCAPE)))) break;
if ((msg.message != WM_KEYDOWN) && (msg.message != WM_MOUSEMOVE))
{
TranslateMessage( &msg );
DispatchMessageW( &msg );
continue; /* We are not interested in other messages */
}
pt = msg.pt;
if (msg.message == WM_KEYDOWN) switch(msg.wParam)
{
case VK_UP: pt.y -= 8; break;
case VK_DOWN: pt.y += 8; break;
case VK_LEFT: pt.x -= 8; break;
case VK_RIGHT: pt.x += 8; break;
}
pt.x = max( pt.x, mouseRect.left );
pt.x = min( pt.x, mouseRect.right - 1 );
pt.y = max( pt.y, mouseRect.top );
pt.y = min( pt.y, mouseRect.bottom - 1 );
if (!parent)
{
HMONITOR newmon;
MONITORINFO info;
if ((newmon = MonitorFromPoint( pt, MONITOR_DEFAULTTONULL )))
mon = newmon;
info.cbSize = sizeof(info);
if (mon && GetMonitorInfoW( mon, &info ))
{
pt.x = max( pt.x, info.rcWork.left );
pt.x = min( pt.x, info.rcWork.right - 1 );
pt.y = max( pt.y, info.rcWork.top );
pt.y = min( pt.y, info.rcWork.bottom - 1 );
}
}
dx = pt.x - capturePoint.x;
dy = pt.y - capturePoint.y;
if (dx || dy)
{
if( !moved )
{
moved = TRUE;
if (!DragFullWindows)
draw_moving_frame( parent, hdc, &sizingRect, thickframe );
}
if (msg.message == WM_KEYDOWN) NtUserSetCursorPos( pt.x, pt.y );
else
{
if (!DragFullWindows) draw_moving_frame( parent, hdc, &sizingRect, thickframe );
if (hittest == HTCAPTION || hittest == HTBORDER) OffsetRect( &sizingRect, dx, dy );
if (ON_LEFT_BORDER(hittest)) sizingRect.left += dx;
else if (ON_RIGHT_BORDER(hittest)) sizingRect.right += dx;
if (ON_TOP_BORDER(hittest)) sizingRect.top += dy;
else if (ON_BOTTOM_BORDER(hittest)) sizingRect.bottom += dy;
capturePoint = pt;
/* determine the hit location */
if (syscommand == SC_SIZE && hittest != HTBORDER)
{
WPARAM wpSizingHit = 0;
if (hittest >= HTLEFT && hittest <= HTBOTTOMRIGHT)
wpSizingHit = WMSZ_LEFT + (hittest - HTLEFT);
SendMessageW( hwnd, WM_SIZING, wpSizingHit, (LPARAM)&sizingRect );
}
else
SendMessageW( hwnd, WM_MOVING, 0, (LPARAM)&sizingRect );
if (!DragFullWindows)
draw_moving_frame( parent, hdc, &sizingRect, thickframe );
else
{
RECT rect = sizingRect;
MapWindowPoints( 0, parent, (POINT *)&rect, 2 );
NtUserSetWindowPos( hwnd, 0, rect.left, rect.top,
rect.right - rect.left, rect.bottom - rect.top,
(hittest == HTCAPTION) ? SWP_NOSIZE : 0 );
}
}
}
}
if (moved && !DragFullWindows)
{
draw_moving_frame( parent, hdc, &sizingRect, thickframe );
}
set_capture_window( 0, GUI_INMOVESIZE, NULL );
NtUserReleaseDC( parent, hdc );
if (parent) MapWindowPoints( 0, parent, (POINT *)&sizingRect, 2 );
if (HOOK_CallHooks( WH_CBT, HCBT_MOVESIZE, (WPARAM)hwnd, (LPARAM)&sizingRect, TRUE ))
moved = FALSE;
SendMessageW( hwnd, WM_EXITSIZEMOVE, 0, 0 );
SendMessageW( hwnd, WM_SETVISIBLE, !IsIconic(hwnd), 0L);
/* window moved or resized */
if (moved)
{
/* if the moving/resizing isn't canceled call SetWindowPos
* with the new position or the new size of the window
*/
if (!((msg.message == WM_KEYDOWN) && (msg.wParam == VK_ESCAPE)) )
{
/* NOTE: SWP_NOACTIVATE prevents document window activation in Word 6 */
if (!DragFullWindows)
NtUserSetWindowPos( hwnd, 0, sizingRect.left, sizingRect.top,
sizingRect.right - sizingRect.left,
sizingRect.bottom - sizingRect.top,
( hittest == HTCAPTION ) ? SWP_NOSIZE : 0 );
}
else
{ /* restore previous size/position */
if(DragFullWindows)
NtUserSetWindowPos( hwnd, 0, origRect.left, origRect.top,
origRect.right - origRect.left,
origRect.bottom - origRect.top,
( hittest == HTCAPTION ) ? SWP_NOSIZE : 0 );
}
}
if (IsIconic(hwnd))
{
/* Single click brings up the system menu when iconized */
if( !moved )
{
if(style & WS_SYSMENU )
SendMessageW( hwnd, WM_SYSCOMMAND,
SC_MOUSEMENU + HTSYSMENU, MAKELONG(pt.x,pt.y));
}
}
}