/*****************************************************************
* HideCaret (USER32.@)
*/
BOOL WINAPI HideCaret( HWND hwnd )
{
BOOL ret;
RECT r;
int old_state = 0;
int hidden = 0;
SERVER_START_REQ( set_caret_info )
{
req->flags = SET_CARET_HIDE|SET_CARET_STATE;
req->handle = wine_server_user_handle( hwnd );
req->x = 0;
req->y = 0;
req->hide = 1;
req->state = 0;
if ((ret = !wine_server_call_err( req )))
{
hwnd = wine_server_ptr_handle( reply->full_handle );
r.left = reply->old_rect.left;
r.top = reply->old_rect.top;
r.right = reply->old_rect.right;
r.bottom = reply->old_rect.bottom;
old_state = reply->old_state;
hidden = reply->old_hide;
}
}
SERVER_END_REQ;
if (ret && !hidden)
{
if (old_state) CARET_DisplayCaret( hwnd, &r );
KillSystemTimer( hwnd, TIMERID );
}
return ret;
}
BOOL CTCPSocketAsync::LocalSocketConnect(int iErrorCode,
BOOL bNoEvent)
{
try
{
if (m_ulTimeout)
//Kill the timer
KillSystemTimer();
//Did we got an error
if (!iErrorCode)
//Set the connection status
SetConnectionStatus(TRUE);
//Call father
return CAsyncSocket::SocketConnected(iErrorCode,
bNoEvent);
}
ERROR_HANDLER_RETURN("LocalSocketConnect",FALSE)
}
BOOL CTCPSocketAsync::SetConnectionTimeout(unsigned long ulMS)
{
try
{
//Do we have a timeout ?
if (HasSystemTimer())
if (!KillSystemTimer())
{
//Report it
ReportError("SetConnectionTimeout","Failed to kill previous timer!");
//Exit
return FALSE;
}
//Create the timer
m_ulTimeout=ulMS;
//Done
return TRUE;
}
ERROR_HANDLER_RETURN("SetConnectionTimeout",FALSE)
}
/*****************************************************************
* DestroyCaret (USER32.@)
*/
BOOL WINAPI DestroyCaret(void)
{
BOOL ret;
HWND prev = 0;
RECT r;
int old_state = 0;
int hidden = 0;
SERVER_START_REQ( set_caret_window )
{
req->handle = 0;
req->width = 0;
req->height = 0;
if ((ret = !wine_server_call_err( req )))
{
prev = wine_server_ptr_handle( reply->previous );
r.left = reply->old_rect.left;
r.top = reply->old_rect.top;
r.right = reply->old_rect.right;
r.bottom = reply->old_rect.bottom;
old_state = reply->old_state;
hidden = reply->old_hide;
}
}
SERVER_END_REQ;
if (ret && prev && !hidden)
{
/* FIXME: won't work if prev belongs to a different process */
KillSystemTimer( prev, TIMERID );
if (old_state) CARET_DisplayCaret( prev, &r );
}
if (Caret.hBmp) DeleteObject( Caret.hBmp );
Caret.hBmp = 0;
return ret;
}
static void CALLBACK TrackMouseEventProc(HWND hwnd, UINT uMsg, UINT_PTR idEvent,
DWORD dwTime)
{
POINT pos;
INT hoverwidth = 0, hoverheight = 0, hittest;
TRACE("hwnd %p, msg %04x, id %04lx, time %u\n", hwnd, uMsg, idEvent, dwTime);
GetCursorPos(&pos);
hwnd = WINPOS_WindowFromPoint(hwnd, pos, &hittest);
TRACE("point %s hwnd %p hittest %d\n", wine_dbgstr_point(&pos), hwnd, hittest);
SystemParametersInfoW(SPI_GETMOUSEHOVERWIDTH, 0, &hoverwidth, 0);
SystemParametersInfoW(SPI_GETMOUSEHOVERHEIGHT, 0, &hoverheight, 0);
TRACE("tracked pos %s, current pos %s, hover width %d, hover height %d\n",
wine_dbgstr_point(&tracking_info.pos), wine_dbgstr_point(&pos),
hoverwidth, hoverheight);
/* see if this tracking event is looking for TME_LEAVE and that the */
/* mouse has left the window */
if (tracking_info.tme.dwFlags & TME_LEAVE)
{
check_mouse_leave(hwnd, hittest);
}
if (tracking_info.tme.hwndTrack != hwnd)
{
/* mouse is gone, stop tracking mouse hover */
tracking_info.tme.dwFlags &= ~TME_HOVER;
}
/* see if we are tracking hovering for this hwnd */
if (tracking_info.tme.dwFlags & TME_HOVER)
{
/* has the cursor moved outside the rectangle centered around pos? */
if ((abs(pos.x - tracking_info.pos.x) > (hoverwidth / 2)) ||
(abs(pos.y - tracking_info.pos.y) > (hoverheight / 2)))
{
/* record this new position as the current position */
tracking_info.pos = pos;
}
else
{
if (hittest == HTCLIENT)
{
ScreenToClient(hwnd, &pos);
TRACE("client cursor pos %s\n", wine_dbgstr_point(&pos));
PostMessageW(tracking_info.tme.hwndTrack, WM_MOUSEHOVER,
get_key_state(), MAKELPARAM( pos.x, pos.y ));
}
else
{
if (tracking_info.tme.dwFlags & TME_NONCLIENT)
PostMessageW(tracking_info.tme.hwndTrack, WM_NCMOUSEHOVER,
hittest, MAKELPARAM( pos.x, pos.y ));
}
/* stop tracking mouse hover */
tracking_info.tme.dwFlags &= ~TME_HOVER;
}
}
/* stop the timer if the tracking list is empty */
if (!(tracking_info.tme.dwFlags & (TME_HOVER | TME_LEAVE)))
{
KillSystemTimer(tracking_info.tme.hwndTrack, timer);
timer = 0;
tracking_info.tme.hwndTrack = 0;
tracking_info.tme.dwFlags = 0;
tracking_info.tme.dwHoverTime = 0;
}
}
BOOL WINAPI
TrackMouseEvent (TRACKMOUSEEVENT *ptme)
{
HWND hwnd;
POINT pos;
DWORD hover_time;
INT hittest;
TRACE("%x, %x, %p, %u\n", ptme->cbSize, ptme->dwFlags, ptme->hwndTrack, ptme->dwHoverTime);
if (ptme->cbSize != sizeof(TRACKMOUSEEVENT)) {
WARN("wrong TRACKMOUSEEVENT size from app\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
/* fill the TRACKMOUSEEVENT struct with the current tracking for the given hwnd */
if (ptme->dwFlags & TME_QUERY )
{
*ptme = tracking_info.tme;
/* set cbSize in the case it's not initialized yet */
ptme->cbSize = sizeof(TRACKMOUSEEVENT);
return TRUE; /* return here, TME_QUERY is retrieving information */
}
if (!IsWindow(ptme->hwndTrack))
{
SetLastError(ERROR_INVALID_WINDOW_HANDLE);
return FALSE;
}
hover_time = ptme->dwHoverTime;
/* if HOVER_DEFAULT was specified replace this with the systems current value.
* TME_LEAVE doesn't need to specify hover time so use default */
if (hover_time == HOVER_DEFAULT || hover_time == 0 || !(ptme->dwHoverTime&TME_HOVER))
SystemParametersInfoW(SPI_GETMOUSEHOVERTIME, 0, &hover_time, 0);
GetCursorPos(&pos);
hwnd = WINPOS_WindowFromPoint(ptme->hwndTrack, pos, &hittest);
TRACE("point %s hwnd %p hittest %d\n", wine_dbgstr_point(&pos), hwnd, hittest);
if (ptme->dwFlags & ~(TME_CANCEL | TME_HOVER | TME_LEAVE | TME_NONCLIENT))
FIXME("Unknown flag(s) %08x\n", ptme->dwFlags & ~(TME_CANCEL | TME_HOVER | TME_LEAVE | TME_NONCLIENT));
if (ptme->dwFlags & TME_CANCEL)
{
if (tracking_info.tme.hwndTrack == ptme->hwndTrack)
{
tracking_info.tme.dwFlags &= ~(ptme->dwFlags & ~TME_CANCEL);
/* if we aren't tracking on hover or leave remove this entry */
if (!(tracking_info.tme.dwFlags & (TME_HOVER | TME_LEAVE)))
{
KillSystemTimer(tracking_info.tme.hwndTrack, timer);
timer = 0;
tracking_info.tme.hwndTrack = 0;
tracking_info.tme.dwFlags = 0;
tracking_info.tme.dwHoverTime = 0;
}
}
} else {
/* In our implementation it's possible that another window will receive a
* WM_MOUSEMOVE and call TrackMouseEvent before TrackMouseEventProc is
* called. In such a situation post the WM_MOUSELEAVE now */
if (tracking_info.tme.dwFlags & TME_LEAVE && tracking_info.tme.hwndTrack != NULL)
check_mouse_leave(hwnd, hittest);
if (timer)
{
KillSystemTimer(tracking_info.tme.hwndTrack, timer);
timer = 0;
tracking_info.tme.hwndTrack = 0;
tracking_info.tme.dwFlags = 0;
tracking_info.tme.dwHoverTime = 0;
}
if (ptme->hwndTrack == hwnd)
{
/* Adding new mouse event to the tracking list */
tracking_info.tme = *ptme;
tracking_info.tme.dwHoverTime = hover_time;
/* Initialize HoverInfo variables even if not hover tracking */
tracking_info.pos = pos;
timer = SetSystemTimer(tracking_info.tme.hwndTrack, (UINT_PTR)&tracking_info.tme, hover_time, TrackMouseEventProc);
}
}
return TRUE;
}
BOOL CTCPSocketAsync::LocalConnect(unsigned short usSourcePort,
IP aDestinationAddress,
unsigned short usDestinationPort,
BOOL bDisableAsync,
BOOL bForceErrorEvent)
{
try
{
//Quit if not ok
if (!CheckSocketValid())
return FALSE;
//Set the async notification
if (!bDisableAsync)
{
int iResult;
iResult=InternalWSAAsyncSelect(WM_SOCKET_CONNECT,
FD_CONNECT);
if (iResult)
{
//Get the error code
int iErrorCode;
iErrorCode=GetSystemLastError();
//Report it
SetLastError("Connect");
//Do we need to call event?
if (bForceErrorEvent)
SocketConnected(iErrorCode);
//Exit
return FALSE;
}
//Set our timeout
if (m_ulTimeout &&
!IsBlocking())
if (!SetSystemTimeout(m_ulTimeout))
{
//Report it
ReportError("LocalConnect","Failed to set timer!");
//Do we need to call event?
if (bForceErrorEvent)
SocketConnected(GetErrorCode());
//Exit
return FALSE;
}
}
//Set to non blocking!
else if (!Block())
return FALSE;
//Set the flag
m_bDisabledConnect=bDisableAsync;
//Call the original connect
BOOL bResult;
bResult=CTCPSocket::Connect(usSourcePort,
aDestinationAddress,
usDestinationPort);
//Reset the flag
m_bDisabledConnect=FALSE;
if (bResult)
{
//Call event, but only if in async
if (!bDisableAsync &&
!IsBlocking())
//Call user, will add socket automatically
return SocketConnected(0);
else
//Set as async
return SetAsync();
}
else if (GetSystemLastError()!=WSAEWOULDBLOCK ||
bDisableAsync ||
IsBlocking())
{
if (m_ulTimeout)
//Kill the timer
KillSystemTimer();
//Get the error code
int iErrorCode;
iErrorCode=GetSystemLastError();
//Report it
SetLastError("Connect");
//Do we need to call event?
if (bForceErrorEvent &&
!bDisableAsync)
SocketConnected(iErrorCode);
//Exit
return FALSE;
}
else
return TRUE;
}
ERROR_HANDLER_RETURN("LocalConnect",FALSE)
}
/*****************************************************************
* CreateCaret (USER32.@)
*/
BOOL WINAPI CreateCaret( HWND hwnd, HBITMAP bitmap, INT width, INT height )
{
BOOL ret;
RECT r;
int old_state = 0;
int hidden = 0;
HBITMAP hBmp = 0;
HWND prev = 0;
TRACE("hwnd=%p\n", hwnd);
if (!hwnd) return FALSE;
if (bitmap && (bitmap != (HBITMAP)1))
{
BITMAP bmp;
if (!GetObjectA( bitmap, sizeof(bmp), &bmp )) return FALSE;
width = bmp.bmWidth;
height = bmp.bmHeight;
bmp.bmBits = NULL;
hBmp = CreateBitmapIndirect(&bmp);
if (hBmp)
{
/* copy the bitmap */
LPBYTE buf = HeapAlloc(GetProcessHeap(), 0, bmp.bmWidthBytes * bmp.bmHeight);
GetBitmapBits(bitmap, bmp.bmWidthBytes * bmp.bmHeight, buf);
SetBitmapBits(hBmp, bmp.bmWidthBytes * bmp.bmHeight, buf);
HeapFree(GetProcessHeap(), 0, buf);
}
}
else
{
HDC hdc;
if (!width) width = GetSystemMetrics(SM_CXBORDER);
if (!height) height = GetSystemMetrics(SM_CYBORDER);
/* create the uniform bitmap on the fly */
hdc = GetDC(hwnd);
if (hdc)
{
HDC hMemDC = CreateCompatibleDC(hdc);
if (hMemDC)
{
if ((hBmp = CreateCompatibleBitmap(hMemDC, width, height )))
{
HBITMAP hPrevBmp = SelectObject(hMemDC, hBmp);
SetRect( &r, 0, 0, width, height );
FillRect(hMemDC, &r, ULongToHandle((bitmap ? COLOR_GRAYTEXT : COLOR_WINDOW) + 1));
SelectObject(hMemDC, hPrevBmp);
}
DeleteDC(hMemDC);
}
ReleaseDC(hwnd, hdc);
}
}
if (!hBmp) return FALSE;
SERVER_START_REQ( set_caret_window )
{
req->handle = wine_server_user_handle( hwnd );
req->width = width;
req->height = height;
if ((ret = !wine_server_call_err( req )))
{
prev = wine_server_ptr_handle( reply->previous );
r.left = reply->old_rect.left;
r.top = reply->old_rect.top;
r.right = reply->old_rect.right;
r.bottom = reply->old_rect.bottom;
old_state = reply->old_state;
hidden = reply->old_hide;
}
}
SERVER_END_REQ;
if (!ret) return FALSE;
if (prev && !hidden) /* hide the previous one */
{
/* FIXME: won't work if prev belongs to a different process */
KillSystemTimer( prev, TIMERID );
if (old_state) CARET_DisplayCaret( prev, &r );
}
if (Caret.hBmp) DeleteObject( Caret.hBmp );
Caret.hBmp = hBmp;
Caret.timeout = GetProfileIntA( "windows", "CursorBlinkRate", 500 );
return TRUE;
}
static void
SCROLL_HandleScrollEvent( HWND hwnd, INT nBar, UINT msg, POINT pt)
{
/* Previous mouse position for timer events */
static POINT prevPt;
/* Thumb position when tracking started. */
static UINT trackThumbPos;
/* Position in the scroll-bar of the last button-down event. */
static INT lastClickPos;
/* Position in the scroll-bar of the last mouse event. */
static INT lastMousePos;
enum SCROLL_HITTEST hittest;
HWND hwndOwner, hwndCtl;
BOOL vertical;
SCROLLINFO si;
SCROLLBARINFO sbi;
DRAW_CONTEXT context;
si.cbSize = sizeof(si);
sbi.cbSize = sizeof(sbi);
si.fMask = SIF_ALL;
GetScrollInfo(hwnd, nBar, &si);
GetScrollBarInfo(hwnd, SCROLL_getObjectId(nBar), &sbi);
vertical = SCROLL_IsVertical(hwnd, nBar);
if(sbi.rgstate[SCROLL_TOP_ARROW] & STATE_SYSTEM_UNAVAILABLE &&
sbi.rgstate[SCROLL_BOTTOM_ARROW] & STATE_SYSTEM_UNAVAILABLE )
{
return;
}
ThemeInitDrawContext(&context, hwnd, 0);
#ifndef ROS_SUCKS
/* The scrollbar rect is in screen coordinates */
// OffsetRect(&sbi.rcScrollBar, -context.wi.rcWindow.left, -context.wi.rcWindow.top);
#endif
if ((SCROLL_trackHitTest == SCROLL_NOWHERE) && (msg != WM_LBUTTONDOWN))
return;
hwndOwner = (nBar == SB_CTL) ? GetParent(hwnd) : hwnd;
hwndCtl = (nBar == SB_CTL) ? hwnd : 0;
switch(msg)
{
case WM_LBUTTONDOWN: /* Initialise mouse tracking */
HideCaret(hwnd); /* hide caret while holding down LBUTTON */
SCROLL_trackVertical = vertical;
SCROLL_trackHitTest = hittest = SCROLL_HitTest( hwnd, &sbi, vertical, pt, FALSE );
lastClickPos = vertical ? (pt.y - sbi.rcScrollBar.top) : (pt.x - sbi.rcScrollBar.left);
lastMousePos = lastClickPos;
trackThumbPos = sbi.xyThumbTop;
prevPt = pt;
SetCapture( hwnd );
break;
case WM_MOUSEMOVE:
hittest = SCROLL_HitTest( hwnd, &sbi, vertical, pt, TRUE );
prevPt = pt;
break;
case WM_LBUTTONUP:
hittest = SCROLL_NOWHERE;
ReleaseCapture();
/* if scrollbar has focus, show back caret */
if (hwnd==GetFocus())
ShowCaret(hwnd);
break;
case WM_SYSTIMER:
pt = prevPt;
hittest = SCROLL_HitTest( hwnd, &sbi, vertical, pt, FALSE );
break;
default:
return; /* Should never happen */
}
//TRACE("Event: hwnd=%p bar=%d msg=%s pt=%d,%d hit=%d\n",
// hwnd, nBar, SPY_GetMsgName(msg,hwnd), pt.x, pt.y, hittest );
switch(SCROLL_trackHitTest)
{
case SCROLL_NOWHERE: /* No tracking in progress */
break;
case SCROLL_TOP_ARROW:
if (hittest == SCROLL_trackHitTest)
{
SCROLL_DrawArrows( &context, &sbi, vertical, SCROLL_trackHitTest, 0 );
if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER))
{
SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
SB_LINEUP, (LPARAM)hwndCtl );
}
SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, NULL );
}
else
{
SCROLL_DrawArrows( &context, &sbi, vertical, 0, 0 );
KillSystemTimer( hwnd, SCROLL_TIMER );
}
break;
case SCROLL_TOP_RECT:
SCROLL_DrawInterior( &context, &sbi, sbi.xyThumbTop, vertical, SCROLL_trackHitTest, 0);
if (hittest == SCROLL_trackHitTest)
{
if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER))
{
SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
SB_PAGEUP, (LPARAM)hwndCtl );
}
SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, NULL );
}
else KillSystemTimer( hwnd, SCROLL_TIMER );
break;
case SCROLL_THUMB:
if (msg == WM_LBUTTONDOWN)
{
SCROLL_TrackingWin = hwnd;
SCROLL_TrackingBar = nBar;
SCROLL_TrackingPos = trackThumbPos + lastMousePos - lastClickPos;
SCROLL_TrackingVal = SCROLL_GetThumbVal( &si, &sbi.rcScrollBar,
vertical, SCROLL_TrackingPos );
if (!SCROLL_MovingThumb)
SCROLL_DrawMovingThumb(&context, &sbi, vertical);
}
else if (msg == WM_LBUTTONUP)
{
if (SCROLL_MovingThumb)
SCROLL_DrawMovingThumb(&context, &sbi, vertical);
SCROLL_DrawInterior( &context, &sbi, sbi.xyThumbTop, vertical, 0, SCROLL_trackHitTest );
}
else /* WM_MOUSEMOVE */
{
INT pos;
if (!SCROLL_PtInRectEx( &sbi.rcScrollBar, pt, vertical ))
pos = lastClickPos;
else
{
pt = SCROLL_ClipPos( &sbi.rcScrollBar, pt );
pos = vertical ? (pt.y - sbi.rcScrollBar.top) : (pt.x - sbi.rcScrollBar.left);
}
if ( (pos != lastMousePos) || (!SCROLL_MovingThumb) )
{
if (SCROLL_MovingThumb)
SCROLL_DrawMovingThumb( &context, &sbi, vertical);
lastMousePos = pos;
SCROLL_TrackingPos = trackThumbPos + pos - lastClickPos;
SCROLL_TrackingVal = SCROLL_GetThumbVal( &si, &sbi.rcScrollBar,
vertical,
SCROLL_TrackingPos );
SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
MAKEWPARAM( SB_THUMBTRACK, SCROLL_TrackingVal),
(LPARAM)hwndCtl );
if (!SCROLL_MovingThumb)
SCROLL_DrawMovingThumb( &context, &sbi, vertical);
}
}
break;
case SCROLL_BOTTOM_RECT:
if (hittest == SCROLL_trackHitTest)
{
SCROLL_DrawInterior( &context, &sbi, sbi.xyThumbTop, vertical, SCROLL_trackHitTest, 0 );
if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER))
{
SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
SB_PAGEDOWN, (LPARAM)hwndCtl );
}
SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, NULL );
}
else
{
SCROLL_DrawInterior( &context, &sbi, sbi.xyThumbTop, vertical, 0, 0 );
KillSystemTimer( hwnd, SCROLL_TIMER );
}
break;
case SCROLL_BOTTOM_ARROW:
if (hittest == SCROLL_trackHitTest)
{
SCROLL_DrawArrows( &context, &sbi, vertical, SCROLL_trackHitTest, 0 );
if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER))
{
SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
SB_LINEDOWN, (LPARAM)hwndCtl );
}
SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, NULL );
}
else
{
SCROLL_DrawArrows( &context, &sbi, vertical, 0, 0 );
KillSystemTimer( hwnd, SCROLL_TIMER );
}
break;
}
if (msg == WM_LBUTTONDOWN)
{
if (hittest == SCROLL_THUMB)
{
UINT val = SCROLL_GetThumbVal( &si, &sbi.rcScrollBar, vertical,
trackThumbPos + lastMousePos - lastClickPos );
SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
MAKEWPARAM( SB_THUMBTRACK, val ), (LPARAM)hwndCtl );
}
}
if (msg == WM_LBUTTONUP)
{
hittest = SCROLL_trackHitTest;
SCROLL_trackHitTest = SCROLL_NOWHERE; /* Terminate tracking */
if (hittest == SCROLL_THUMB)
{
UINT val = SCROLL_GetThumbVal( &si, &sbi.rcScrollBar, vertical,
trackThumbPos + lastMousePos - lastClickPos );
SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
MAKEWPARAM( SB_THUMBPOSITION, val ), (LPARAM)hwndCtl );
}
/* SB_ENDSCROLL doesn't report thumb position */
SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
SB_ENDSCROLL, (LPARAM)hwndCtl );
/* Terminate tracking */
SCROLL_TrackingWin = 0;
}
ThemeCleanupDrawContext(&context);
}
/***********************************************************************
* IntScrollHandleScrollEvent
*
* Handle a mouse or timer event for the scrollbar.
* 'Pt' is the location of the mouse event in drawing coordinates
*/
static VOID FASTCALL
IntScrollHandleScrollEvent(HWND Wnd, INT SBType, UINT Msg, POINT Pt)
{
static POINT PrevPt; /* Previous mouse position for timer events */
static UINT TrackThumbPos; /* Thumb position when tracking started. */
static INT LastClickPos; /* Position in the scroll-bar of the last
button-down event. */
static INT LastMousePos; /* Position in the scroll-bar of the last
mouse event. */
DWORD HitTest;
HWND WndOwner, WndCtl;
BOOL Vertical;
HDC Dc;
SCROLLBARINFO ScrollBarInfo;
SETSCROLLBARINFO NewInfo;
if (! IntGetScrollBarInfo(Wnd, SBType, &ScrollBarInfo))
{
return;
}
if (SCROLL_NOWHERE == ScrollTrackHitTest && WM_LBUTTONDOWN != Msg)
{
return;
}
NewInfo.nTrackPos = ScrollTrackingVal;
NewInfo.reserved = ScrollBarInfo.reserved;
memcpy(NewInfo.rgstate, ScrollBarInfo.rgstate, (CCHILDREN_SCROLLBAR + 1) * sizeof(DWORD));
if (SB_CTL == SBType
&& 0 != (GetWindowLongPtrW(Wnd, GWL_STYLE) & (SBS_SIZEGRIP | SBS_SIZEBOX)))
{
switch(Msg)
{
case WM_LBUTTONDOWN: /* Initialise mouse tracking */
HideCaret(Wnd); /* hide caret while holding down LBUTTON */
SetCapture(Wnd);
PrevPt = Pt;
ScrollTrackHitTest = HitTest = SCROLL_THUMB;
break;
case WM_MOUSEMOVE:
GetClientRect(GetParent(GetParent(Wnd)), &ScrollBarInfo.rcScrollBar);
PrevPt = Pt;
break;
case WM_LBUTTONUP:
ReleaseCapture();
ScrollTrackHitTest = HitTest = SCROLL_NOWHERE;
if (Wnd == GetFocus())
{
ShowCaret(Wnd);
}
break;
case WM_SYSTIMER:
Pt = PrevPt;
break;
}
return;
}
Dc = GetDCEx(Wnd, 0, DCX_CACHE | ((SB_CTL == SBType) ? 0 : DCX_WINDOW));
if (SB_VERT == SBType)
{
Vertical = TRUE;
}
else if (SB_HORZ == SBType)
{
Vertical = FALSE;
}
else
{
Vertical = (0 != (GetWindowLongPtrW(Wnd, GWL_STYLE) & SBS_VERT));
}
WndOwner = (SB_CTL == SBType) ? GetParent(Wnd) : Wnd;
WndCtl = (SB_CTL == SBType) ? Wnd : NULL;
switch (Msg)
{
case WM_LBUTTONDOWN: /* Initialise mouse tracking */
HideCaret(Wnd); /* hide caret while holding down LBUTTON */
ScrollTrackVertical = Vertical;
ScrollTrackHitTest = HitTest = IntScrollHitTest(&ScrollBarInfo, Vertical, Pt, FALSE );
LastClickPos = Vertical ? (Pt.y - ScrollBarInfo.rcScrollBar.top)
: (Pt.x - ScrollBarInfo.rcScrollBar.left);
LastMousePos = LastClickPos;
TrackThumbPos = ScrollBarInfo.xyThumbTop;
PrevPt = Pt;
if (SB_CTL == SBType && 0 != (GetWindowLongPtrW(Wnd, GWL_STYLE) & WS_TABSTOP))
{
SetFocus(Wnd);
}
SetCapture(Wnd);
ScrollBarInfo.rgstate[ScrollTrackHitTest] |= STATE_SYSTEM_PRESSED;
NewInfo.rgstate[ScrollTrackHitTest] = ScrollBarInfo.rgstate[ScrollTrackHitTest];
NtUserSetScrollBarInfo(Wnd, IntScrollGetObjectId(SBType), &NewInfo);
break;
case WM_MOUSEMOVE:
HitTest = IntScrollHitTest(&ScrollBarInfo, Vertical, Pt, TRUE);
PrevPt = Pt;
break;
case WM_LBUTTONUP:
HitTest = SCROLL_NOWHERE;
ReleaseCapture();
/* if scrollbar has focus, show back caret */
if (Wnd == GetFocus())
{
ShowCaret(Wnd);
}
ScrollBarInfo.rgstate[ScrollTrackHitTest] &= ~STATE_SYSTEM_PRESSED;
NewInfo.rgstate[ScrollTrackHitTest] = ScrollBarInfo.rgstate[ScrollTrackHitTest];
NtUserSetScrollBarInfo(Wnd, IntScrollGetObjectId(SBType), &NewInfo);
break;
case WM_SYSTIMER:
Pt = PrevPt;
HitTest = IntScrollHitTest(&ScrollBarInfo, Vertical, Pt, FALSE);
break;
default:
return; /* Should never happen */
}
switch (ScrollTrackHitTest)
{
case SCROLL_NOWHERE: /* No tracking in progress */
break;
case SCROLL_TOP_ARROW:
if (HitTest == ScrollTrackHitTest)
{
if ((WM_LBUTTONDOWN == Msg) || (WM_SYSTIMER == Msg))
{
SendMessageW(WndOwner, Vertical ? WM_VSCROLL : WM_HSCROLL,
SB_LINEUP, (LPARAM) WndCtl);
}
SetSystemTimer(Wnd, SCROLL_TIMER, (WM_LBUTTONDOWN == Msg) ?
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
(TIMERPROC) NULL);
}
else
{
KillSystemTimer(Wnd, SCROLL_TIMER);
}
break;
case SCROLL_TOP_RECT:
if (HitTest == ScrollTrackHitTest)
{
if ((WM_LBUTTONDOWN == Msg) || (WM_SYSTIMER == Msg))
{
SendMessageW(WndOwner, Vertical ? WM_VSCROLL : WM_HSCROLL,
SB_PAGEUP, (LPARAM) WndCtl);
}
SetSystemTimer(Wnd, SCROLL_TIMER, (WM_LBUTTONDOWN == Msg) ?
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
(TIMERPROC) NULL);
}
else
{
KillSystemTimer(Wnd, SCROLL_TIMER);
}
break;
case SCROLL_THUMB:
if (WM_LBUTTONDOWN == Msg)
{
ScrollTrackingWin = Wnd;
ScrollTrackingBar = SBType;
ScrollTrackingPos = TrackThumbPos + LastMousePos - LastClickPos;
ScrollTrackingVal = IntScrollGetThumbVal(Wnd, SBType, &ScrollBarInfo,
Vertical, ScrollTrackingPos);
NewInfo.nTrackPos = ScrollTrackingVal;
NtUserSetScrollBarInfo(Wnd, IntScrollGetObjectId(SBType), &NewInfo);
IntScrollDrawMovingThumb(Dc, &ScrollBarInfo, Vertical);
}
else if (WM_LBUTTONUP == Msg)
{
ScrollTrackingWin = 0;
ScrollTrackingVal = 0;
IntDrawScrollInterior(Wnd, Dc, SBType, Vertical, &ScrollBarInfo);
}
else /* WM_MOUSEMOVE */
{
UINT Pos;
if (! IntScrollPtInRectEx(&ScrollBarInfo.rcScrollBar, Pt, Vertical))
{
Pos = LastClickPos;
}
else
{
Pt = IntScrollClipPos(&ScrollBarInfo.rcScrollBar, Pt);
Pos = Vertical ? (Pt.y - ScrollBarInfo.rcScrollBar.top)
: (Pt.x - ScrollBarInfo.rcScrollBar.left);
}
if (Pos != LastMousePos || ! ScrollMovingThumb)
{
LastMousePos = Pos;
ScrollTrackingPos = TrackThumbPos + Pos - LastClickPos;
ScrollTrackingVal = IntScrollGetThumbVal(Wnd, SBType, &ScrollBarInfo,
Vertical, ScrollTrackingPos);
NewInfo.nTrackPos = ScrollTrackingVal;
NtUserSetScrollBarInfo(Wnd, IntScrollGetObjectId(SBType), &NewInfo);
IntScrollDrawMovingThumb(Dc, &ScrollBarInfo, Vertical);
SendMessageW(WndOwner, Vertical ? WM_VSCROLL : WM_HSCROLL,
MAKEWPARAM(SB_THUMBTRACK, ScrollTrackingVal),
(LPARAM) WndCtl);
}
}
break;
case SCROLL_BOTTOM_RECT:
if (HitTest == ScrollTrackHitTest)
{
if ((WM_LBUTTONDOWN == Msg) || (WM_SYSTIMER == Msg))
{
SendMessageW(WndOwner, Vertical ? WM_VSCROLL : WM_HSCROLL,
SB_PAGEDOWN, (LPARAM) WndCtl);
}
SetSystemTimer(Wnd, SCROLL_TIMER, (WM_LBUTTONDOWN == Msg) ?
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
(TIMERPROC) NULL);
}
else
{
KillSystemTimer(Wnd, SCROLL_TIMER);
}
break;
case SCROLL_BOTTOM_ARROW:
if (HitTest == ScrollTrackHitTest)
{
if ((WM_LBUTTONDOWN == Msg) || (WM_SYSTIMER == Msg))
{
SendMessageW(WndOwner, Vertical ? WM_VSCROLL : WM_HSCROLL,
SB_LINEDOWN, (LPARAM) WndCtl);
}
SetSystemTimer(Wnd, SCROLL_TIMER, (WM_LBUTTONDOWN == Msg) ?
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
(TIMERPROC) NULL);
}
else
{
KillSystemTimer(Wnd, SCROLL_TIMER);
}
break;
}
if (WM_LBUTTONDOWN == Msg)
{
if (SCROLL_THUMB == HitTest)
{
UINT Val = IntScrollGetThumbVal(Wnd, SBType, &ScrollBarInfo, Vertical,
TrackThumbPos + LastMousePos - LastClickPos);
SendMessageW(WndOwner, Vertical ? WM_VSCROLL : WM_HSCROLL,
MAKEWPARAM(SB_THUMBTRACK, Val), (LPARAM) WndCtl);
}
}
if (WM_LBUTTONUP == Msg)
{
HitTest = ScrollTrackHitTest;
ScrollTrackHitTest = SCROLL_NOWHERE; /* Terminate tracking */
if (SCROLL_THUMB == HitTest)
{
UINT Val = IntScrollGetThumbVal(Wnd, SBType, &ScrollBarInfo, Vertical,
TrackThumbPos + LastMousePos - LastClickPos);
SendMessageW(WndOwner, Vertical ? WM_VSCROLL : WM_HSCROLL,
MAKEWPARAM(SB_THUMBPOSITION, Val), (LPARAM) WndCtl);
}
SendMessageW(WndOwner, Vertical ? WM_VSCROLL : WM_HSCROLL,
SB_ENDSCROLL, (LPARAM) WndCtl);
}
ReleaseDC(Wnd, Dc);
}
BOOL ZKillSystemTimer( HWND h, UINT u )
{
return KillSystemTimer(h, u ) ;
}
