mirror of
https://github.com/reactos/reactos.git
synced 2024-12-29 02:25:17 +00:00
476 lines
11 KiB
C
476 lines
11 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS Win32k subsystem
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* PURPOSE: Caret functions
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* FILE: win32ss/user/ntuser/caret.c
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* PROGRAMERS: Thomas Weidenmueller (w3seek@users.sourceforge.net)
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* Katayama Hirofumi MZ (katayama.hirofumi.mz@gmail.com)
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*/
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#include <win32k.h>
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DBG_DEFAULT_CHANNEL(UserCaret);
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/* FUNCTIONS *****************************************************************/
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VOID FASTCALL
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co_IntDrawCaret(PWND pWnd, PTHRDCARETINFO CaretInfo)
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{
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HDC hdc, hdcMem;
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HBITMAP hbmOld;
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RECT rcClient;
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BOOL bDone = FALSE;
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if (pWnd == NULL)
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{
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TRACE("Null Window!\n");
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return;
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}
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hdc = UserGetDCEx(pWnd, NULL, DCX_USESTYLE);
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if (!hdc)
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{
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ERR("GetDC failed\n");
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return;
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}
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if (pWnd->hrgnUpdate)
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{
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NtGdiSaveDC(hdc);
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}
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IntGetClientRect(pWnd, &rcClient);
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NtGdiIntersectClipRect(hdc,
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rcClient.left,
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rcClient.top,
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rcClient.right,
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rcClient.bottom);
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if (CaretInfo->Bitmap)
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{
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if (!GreGetBitmapDimension(CaretInfo->Bitmap, &CaretInfo->Size))
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{
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ERR("Failed to get bitmap dimensions\n");
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goto cleanup;
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}
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hdcMem = NtGdiCreateCompatibleDC(hdc);
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if (hdcMem)
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{
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hbmOld = NtGdiSelectBitmap(hdcMem, CaretInfo->Bitmap);
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bDone = NtGdiBitBlt(hdc,
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CaretInfo->Pos.x,
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CaretInfo->Pos.y,
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CaretInfo->Size.cx,
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CaretInfo->Size.cy,
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hdcMem,
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0,
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0,
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SRCINVERT,
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0,
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0);
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NtGdiSelectBitmap(hdcMem, hbmOld);
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GreDeleteObject(hdcMem);
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}
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}
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if (!bDone)
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{
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NtGdiPatBlt(hdc,
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CaretInfo->Pos.x,
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CaretInfo->Pos.y,
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CaretInfo->Size.cx,
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CaretInfo->Size.cy,
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DSTINVERT);
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}
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cleanup:
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if (pWnd->hrgnUpdate)
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{
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NtGdiRestoreDC(hdc, -1);
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}
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UserReleaseDC(pWnd, hdc, FALSE);
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}
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VOID
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CALLBACK
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CaretSystemTimerProc(HWND hwnd,
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UINT uMsg,
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UINT_PTR idEvent,
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DWORD dwTime)
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{
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PTHREADINFO pti;
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PUSER_MESSAGE_QUEUE ThreadQueue;
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PWND pWnd;
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pti = PsGetCurrentThreadWin32Thread();
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ThreadQueue = pti->MessageQueue;
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if (ThreadQueue->CaretInfo.hWnd != hwnd)
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{
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TRACE("Not the same caret window!\n");
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return;
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}
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if (hwnd)
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{
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pWnd = UserGetWindowObject(hwnd);
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if (!pWnd)
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{
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ERR("Caret System Timer Proc has invalid window handle! %p Id: %u\n", hwnd, idEvent);
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return;
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}
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}
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else
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{
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TRACE( "Windowless Caret Timer Running!\n" );
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return;
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}
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switch (idEvent)
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{
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case IDCARETTIMER:
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{
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ThreadQueue->CaretInfo.Showing = (ThreadQueue->CaretInfo.Showing ? 0 : 1);
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co_IntDrawCaret(pWnd, &ThreadQueue->CaretInfo);
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}
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}
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return;
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}
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static
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BOOL FASTCALL
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co_IntHideCaret(PTHRDCARETINFO CaretInfo)
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{
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PWND pWnd;
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if(CaretInfo->hWnd && CaretInfo->Visible && CaretInfo->Showing)
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{
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pWnd = UserGetWindowObject(CaretInfo->hWnd);
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CaretInfo->Showing = 0;
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co_IntDrawCaret(pWnd, CaretInfo);
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IntNotifyWinEvent(EVENT_OBJECT_HIDE, pWnd, OBJID_CARET, CHILDID_SELF, 0);
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return TRUE;
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}
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return FALSE;
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}
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BOOL FASTCALL
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co_IntDestroyCaret(PTHREADINFO Win32Thread)
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{
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PUSER_MESSAGE_QUEUE ThreadQueue;
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PWND pWnd;
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ThreadQueue = Win32Thread->MessageQueue;
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if (!ThreadQueue)
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return FALSE;
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pWnd = ValidateHwndNoErr(ThreadQueue->CaretInfo.hWnd);
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co_IntHideCaret(&ThreadQueue->CaretInfo);
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ThreadQueue->CaretInfo.Bitmap = (HBITMAP)0;
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ThreadQueue->CaretInfo.hWnd = (HWND)0;
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ThreadQueue->CaretInfo.Size.cx = ThreadQueue->CaretInfo.Size.cy = 0;
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ThreadQueue->CaretInfo.Showing = 0;
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ThreadQueue->CaretInfo.Visible = 0;
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if (pWnd)
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{
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IntNotifyWinEvent(EVENT_OBJECT_DESTROY, pWnd, OBJID_CARET, CHILDID_SELF, 0);
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}
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return TRUE;
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}
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BOOL FASTCALL
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IntSetCaretBlinkTime(UINT uMSeconds)
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{
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/* Don't save the new value to the registry! */
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gpsi->dtCaretBlink = uMSeconds;
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return TRUE;
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}
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BOOL FASTCALL
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co_IntSetCaretPos(int X, int Y)
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{
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PTHREADINFO pti;
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PWND pWnd;
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PUSER_MESSAGE_QUEUE ThreadQueue;
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pti = PsGetCurrentThreadWin32Thread();
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ThreadQueue = pti->MessageQueue;
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if(ThreadQueue->CaretInfo.hWnd)
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{
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pWnd = UserGetWindowObject(ThreadQueue->CaretInfo.hWnd);
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if(ThreadQueue->CaretInfo.Pos.x != X || ThreadQueue->CaretInfo.Pos.y != Y)
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{
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co_IntHideCaret(&ThreadQueue->CaretInfo);
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ThreadQueue->CaretInfo.Pos.x = X;
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ThreadQueue->CaretInfo.Pos.y = Y;
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if (ThreadQueue->CaretInfo.Visible)
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{
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ThreadQueue->CaretInfo.Showing = 1;
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co_IntDrawCaret(pWnd, &ThreadQueue->CaretInfo);
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}
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IntSetTimer(pWnd, IDCARETTIMER, gpsi->dtCaretBlink, CaretSystemTimerProc, TMRF_SYSTEM);
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IntNotifyWinEvent(EVENT_OBJECT_LOCATIONCHANGE, pWnd, OBJID_CARET, CHILDID_SELF, 0);
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}
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return TRUE;
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}
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return FALSE;
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}
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/* Win: zzzHideCaret */
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BOOL FASTCALL co_UserHideCaret(PWND Window OPTIONAL)
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{
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PTHREADINFO pti;
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PUSER_MESSAGE_QUEUE ThreadQueue;
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if (Window) ASSERT_REFS_CO(Window);
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if(Window && Window->head.pti->pEThread != PsGetCurrentThread())
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{
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EngSetLastError(ERROR_ACCESS_DENIED);
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return FALSE;
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}
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pti = PsGetCurrentThreadWin32Thread();
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ThreadQueue = pti->MessageQueue;
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if(Window && ThreadQueue->CaretInfo.hWnd != UserHMGetHandle(Window))
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{
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EngSetLastError(ERROR_ACCESS_DENIED);
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return FALSE;
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}
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if(ThreadQueue->CaretInfo.Visible)
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{
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PWND pwnd = UserGetWindowObject(ThreadQueue->CaretInfo.hWnd);
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IntKillTimer(pwnd, IDCARETTIMER, TRUE);
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co_IntHideCaret(&ThreadQueue->CaretInfo);
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ThreadQueue->CaretInfo.Visible = 0;
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ThreadQueue->CaretInfo.Showing = 0;
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}
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return TRUE;
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}
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/* Win: zzzShowCaret */
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BOOL FASTCALL co_UserShowCaret(PWND Window OPTIONAL)
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{
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PTHREADINFO pti;
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PUSER_MESSAGE_QUEUE ThreadQueue;
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PWND pWnd = NULL;
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if (Window) ASSERT_REFS_CO(Window);
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if(Window && Window->head.pti->pEThread != PsGetCurrentThread())
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{
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EngSetLastError(ERROR_ACCESS_DENIED);
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return FALSE;
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}
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pti = PsGetCurrentThreadWin32Thread();
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ThreadQueue = pti->MessageQueue;
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if(Window && ThreadQueue->CaretInfo.hWnd != UserHMGetHandle(Window))
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{
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EngSetLastError(ERROR_ACCESS_DENIED);
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return FALSE;
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}
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if (!ThreadQueue->CaretInfo.Visible)
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{
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ThreadQueue->CaretInfo.Visible = 1;
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pWnd = ValidateHwndNoErr(ThreadQueue->CaretInfo.hWnd);
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if (!ThreadQueue->CaretInfo.Showing && pWnd)
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{
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IntNotifyWinEvent(EVENT_OBJECT_SHOW, pWnd, OBJID_CARET, OBJID_CARET, 0);
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}
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if ((INT)gpsi->dtCaretBlink > 0)
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{
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IntSetTimer(pWnd, IDCARETTIMER, gpsi->dtCaretBlink, CaretSystemTimerProc, TMRF_SYSTEM);
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}
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else if (ThreadQueue->CaretInfo.Visible)
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{
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ThreadQueue->CaretInfo.Showing = 1;
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co_IntDrawCaret(pWnd, &ThreadQueue->CaretInfo);
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}
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}
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return TRUE;
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}
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/* SYSCALLS *****************************************************************/
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BOOL
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APIENTRY
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NtUserCreateCaret(
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HWND hWnd,
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HBITMAP hBitmap,
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int nWidth,
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int nHeight)
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{
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PWND Window;
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PTHREADINFO pti;
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PUSER_MESSAGE_QUEUE ThreadQueue;
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BOOL Ret = FALSE;
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TRACE("Enter NtUserCreateCaret\n");
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UserEnterExclusive();
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if(!(Window = UserGetWindowObject(hWnd)))
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{
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goto Exit; // Return FALSE
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}
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if(Window->head.pti->pEThread != PsGetCurrentThread())
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{
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EngSetLastError(ERROR_ACCESS_DENIED);
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goto Exit; // Return FALSE
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}
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pti = PsGetCurrentThreadWin32Thread();
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ThreadQueue = pti->MessageQueue;
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if (ThreadQueue->CaretInfo.Visible)
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{
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IntKillTimer(Window, IDCARETTIMER, TRUE);
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co_IntHideCaret(&ThreadQueue->CaretInfo);
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}
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ThreadQueue->CaretInfo.hWnd = hWnd;
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if(hBitmap)
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{
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ThreadQueue->CaretInfo.Bitmap = hBitmap;
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ThreadQueue->CaretInfo.Size.cx = ThreadQueue->CaretInfo.Size.cy = 0;
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}
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else
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{
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if (nWidth == 0)
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{
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nWidth = UserGetSystemMetrics(SM_CXBORDER);
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}
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if (nHeight == 0)
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{
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nHeight = UserGetSystemMetrics(SM_CYBORDER);
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}
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ThreadQueue->CaretInfo.Bitmap = (HBITMAP)0;
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ThreadQueue->CaretInfo.Size.cx = nWidth;
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ThreadQueue->CaretInfo.Size.cy = nHeight;
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}
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ThreadQueue->CaretInfo.Visible = 0;
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ThreadQueue->CaretInfo.Showing = 0;
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IntSetTimer(Window, IDCARETTIMER, gpsi->dtCaretBlink, CaretSystemTimerProc, TMRF_SYSTEM);
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IntNotifyWinEvent(EVENT_OBJECT_CREATE, Window, OBJID_CARET, CHILDID_SELF, 0);
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Ret = TRUE;
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Exit:
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TRACE("Leave NtUserCreateCaret, ret=%i\n", Ret);
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UserLeave();
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return Ret;
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}
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UINT
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APIENTRY
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NtUserGetCaretBlinkTime(VOID)
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{
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UINT ret;
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UserEnterShared();
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ret = gpsi->dtCaretBlink;
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UserLeave();
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return ret;
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}
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BOOL
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APIENTRY
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NtUserGetCaretPos(
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LPPOINT lpPoint)
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{
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PTHREADINFO pti;
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PUSER_MESSAGE_QUEUE ThreadQueue;
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NTSTATUS Status;
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BOOL Ret = TRUE;
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TRACE("Enter NtUserGetCaretPos\n");
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UserEnterShared();
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pti = PsGetCurrentThreadWin32Thread();
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ThreadQueue = pti->MessageQueue;
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Status = MmCopyToCaller(lpPoint, &ThreadQueue->CaretInfo.Pos, sizeof(POINT));
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if(!NT_SUCCESS(Status))
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{
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SetLastNtError(Status);
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Ret = FALSE;
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}
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TRACE("Leave NtUserGetCaretPos, ret=%i\n", Ret);
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UserLeave();
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return Ret;
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}
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BOOL
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APIENTRY
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NtUserShowCaret(HWND hWnd OPTIONAL)
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{
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PWND Window = NULL;
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USER_REFERENCE_ENTRY Ref;
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BOOL ret = FALSE;
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TRACE("Enter NtUserShowCaret\n");
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UserEnterExclusive();
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if(hWnd && !(Window = UserGetWindowObject(hWnd)))
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{
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goto Exit; // Return FALSE
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}
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if (Window) UserRefObjectCo(Window, &Ref);
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ret = co_UserShowCaret(Window);
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if (Window) UserDerefObjectCo(Window);
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Exit:
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TRACE("Leave NtUserShowCaret, ret=%i\n", ret);
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UserLeave();
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return ret;
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}
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BOOL
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APIENTRY
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NtUserHideCaret(HWND hWnd OPTIONAL)
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{
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PWND Window = NULL;
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USER_REFERENCE_ENTRY Ref;
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BOOL ret = FALSE;
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TRACE("Enter NtUserHideCaret\n");
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UserEnterExclusive();
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if(hWnd && !(Window = UserGetWindowObject(hWnd)))
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{
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goto Exit; // Return FALSE
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}
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if (Window) UserRefObjectCo(Window, &Ref);
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ret = co_UserHideCaret(Window);
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if (Window) UserDerefObjectCo(Window);
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Exit:
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TRACE("Leave NtUserHideCaret, ret=%i\n", ret);
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UserLeave();
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return ret;
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}
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