340 lines
7.6 KiB
C
340 lines
7.6 KiB
C
/*
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* Caret functions
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*
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* Copyright 1993 David Metcalfe
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* Copyright 1996 Frans van Dorsselaer
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*/
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "wine/wingdi16.h"
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#include "wine/winuser16.h"
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#include "win.h"
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#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(caret);
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typedef struct
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{
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HWND hwnd;
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UINT hidden;
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BOOL on;
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INT x;
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INT y;
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INT width;
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INT height;
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HBRUSH hBrush;
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UINT timeout;
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UINT timerid;
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} CARET;
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typedef enum
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{
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CARET_OFF = 0,
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CARET_ON,
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CARET_TOGGLE
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} DISPLAY_CARET;
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static CARET Caret = { 0, 0, FALSE, 0, 0, 2, 12, 0, 500, 0 };
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/*****************************************************************
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* CARET_GetHwnd
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*/
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HWND CARET_GetHwnd(void)
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{
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return Caret.hwnd;
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}
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/*****************************************************************
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* CARET_GetRect
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*/
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void CARET_GetRect(LPRECT lprc)
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{
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lprc->right = (lprc->left = Caret.x) + Caret.width - 1;
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lprc->bottom = (lprc->top = Caret.y) + Caret.height - 1;
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}
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/*****************************************************************
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* CARET_DisplayCaret
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*/
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static void CARET_DisplayCaret( DISPLAY_CARET status )
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{
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HDC hdc;
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HBRUSH hPrevBrush;
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if (Caret.on && (status == CARET_ON)) return;
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if (!Caret.on && (status == CARET_OFF)) return;
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/* So now it's always a toggle */
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Caret.on = !Caret.on;
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/* do not use DCX_CACHE here, for x,y,width,height are in logical units */
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if (!(hdc = GetDCEx( Caret.hwnd, 0, DCX_USESTYLE /*| DCX_CACHE*/ ))) return;
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hPrevBrush = SelectObject( hdc, Caret.hBrush );
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PatBlt( hdc, Caret.x, Caret.y, Caret.width, Caret.height, PATINVERT );
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SelectObject( hdc, hPrevBrush );
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ReleaseDC( Caret.hwnd, hdc );
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}
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/*****************************************************************
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* CARET_Callback
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*/
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static VOID CALLBACK CARET_Callback( HWND hwnd, UINT msg, UINT id, DWORD ctime)
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{
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TRACE("hwnd=%04x, timerid=%d, caret=%d\n",
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hwnd, id, Caret.on);
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CARET_DisplayCaret(CARET_TOGGLE);
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}
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/*****************************************************************
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* CARET_SetTimer
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*/
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static void CARET_SetTimer(void)
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{
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if (Caret.timerid) KillSystemTimer( (HWND)0, Caret.timerid );
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Caret.timerid = SetSystemTimer( (HWND)0, 0, Caret.timeout,
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CARET_Callback );
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}
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/*****************************************************************
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* CARET_ResetTimer
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*/
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static void CARET_ResetTimer(void)
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{
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if (Caret.timerid)
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{
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KillSystemTimer( (HWND)0, Caret.timerid );
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Caret.timerid = SetSystemTimer( (HWND)0, 0, Caret.timeout,
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CARET_Callback );
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}
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}
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/*****************************************************************
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* CARET_KillTimer
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*/
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static void CARET_KillTimer(void)
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{
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if (Caret.timerid)
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{
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KillSystemTimer( (HWND)0, Caret.timerid );
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Caret.timerid = 0;
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}
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}
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/*****************************************************************
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* CreateCaret (USER32.@)
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*/
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BOOL WINAPI CreateCaret( HWND hwnd, HBITMAP bitmap,
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INT width, INT height )
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{
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TRACE("hwnd=%04x\n", hwnd);
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if (!hwnd) return FALSE;
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/* if cursor already exists, destroy it */
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if (Caret.hwnd) DestroyCaret();
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if (bitmap && (bitmap != 1))
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{
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BITMAP bmp;
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if (!GetObjectA( bitmap, sizeof(bmp), &bmp )) return FALSE;
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Caret.width = bmp.bmWidth;
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Caret.height = bmp.bmHeight;
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/* FIXME: we should make a copy of the bitmap instead of a brush */
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Caret.hBrush = CreatePatternBrush( bitmap );
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}
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else
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{
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Caret.width = width ? width : GetSystemMetrics(SM_CXBORDER);
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Caret.height = height ? height : GetSystemMetrics(SM_CYBORDER);
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Caret.hBrush = CreateSolidBrush(bitmap ?
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GetSysColor(COLOR_GRAYTEXT) :
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GetSysColor(COLOR_WINDOW) );
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}
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Caret.hwnd = WIN_GetFullHandle( hwnd );
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Caret.hidden = 1;
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Caret.on = FALSE;
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Caret.x = 0;
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Caret.y = 0;
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Caret.timeout = GetProfileIntA( "windows", "CursorBlinkRate", 500 );
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return TRUE;
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}
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/*****************************************************************
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* DestroyCaret (USER.164)
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*/
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void WINAPI DestroyCaret16(void)
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{
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DestroyCaret();
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}
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/*****************************************************************
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* DestroyCaret (USER32.@)
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*/
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BOOL WINAPI DestroyCaret(void)
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{
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if (!Caret.hwnd) return FALSE;
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TRACE("hwnd=%04x, timerid=%d\n",
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Caret.hwnd, Caret.timerid);
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CARET_KillTimer();
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CARET_DisplayCaret(CARET_OFF);
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DeleteObject( Caret.hBrush );
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Caret.hwnd = 0;
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return TRUE;
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}
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/*****************************************************************
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* SetCaretPos (USER.165)
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*/
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void WINAPI SetCaretPos16( INT16 x, INT16 y )
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{
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SetCaretPos( x, y );
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}
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/*****************************************************************
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* SetCaretPos (USER32.@)
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*/
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BOOL WINAPI SetCaretPos( INT x, INT y)
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{
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if (!Caret.hwnd) return FALSE;
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if ((x == Caret.x) && (y == Caret.y)) return TRUE;
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TRACE("x=%d, y=%d\n", x, y);
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CARET_KillTimer();
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CARET_DisplayCaret(CARET_OFF);
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Caret.x = x;
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Caret.y = y;
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if (!Caret.hidden)
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{
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CARET_DisplayCaret(CARET_ON);
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CARET_SetTimer();
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}
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return TRUE;
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}
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/*****************************************************************
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* HideCaret (USER32.@)
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*/
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BOOL WINAPI HideCaret( HWND hwnd )
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{
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if (!Caret.hwnd) return FALSE;
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if (hwnd && (Caret.hwnd != WIN_GetFullHandle(hwnd))) return FALSE;
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TRACE("hwnd=%04x, hidden=%d\n",
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hwnd, Caret.hidden);
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CARET_KillTimer();
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CARET_DisplayCaret(CARET_OFF);
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Caret.hidden++;
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return TRUE;
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}
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/*****************************************************************
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* ShowCaret (USER32.@)
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*/
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BOOL WINAPI ShowCaret( HWND hwnd )
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{
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if (!Caret.hwnd) return FALSE;
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if (hwnd && (Caret.hwnd != WIN_GetFullHandle(hwnd))) return FALSE;
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TRACE("hwnd=%04x, hidden=%d\n",
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hwnd, Caret.hidden);
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if (Caret.hidden)
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{
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Caret.hidden--;
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if (!Caret.hidden)
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{
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CARET_DisplayCaret(CARET_ON);
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CARET_SetTimer();
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}
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}
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return TRUE;
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}
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/*****************************************************************
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* SetCaretBlinkTime (USER.168)
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*/
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void WINAPI SetCaretBlinkTime16( UINT16 msecs )
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{
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SetCaretBlinkTime( msecs );
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}
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/*****************************************************************
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* SetCaretBlinkTime (USER32.@)
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*/
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BOOL WINAPI SetCaretBlinkTime( UINT msecs )
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{
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if (!Caret.hwnd) return FALSE;
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TRACE("hwnd=%04x, msecs=%d\n",
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Caret.hwnd, msecs);
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Caret.timeout = msecs;
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CARET_ResetTimer();
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return TRUE;
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}
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/*****************************************************************
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* GetCaretBlinkTime (USER.169)
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*/
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UINT16 WINAPI GetCaretBlinkTime16(void)
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{
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return (UINT16)GetCaretBlinkTime();
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}
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/*****************************************************************
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* GetCaretBlinkTime (USER32.@)
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*/
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UINT WINAPI GetCaretBlinkTime(void)
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{
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return Caret.timeout;
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}
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/*****************************************************************
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* GetCaretPos (USER.183)
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*/
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VOID WINAPI GetCaretPos16( LPPOINT16 pt )
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{
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if (!Caret.hwnd || !pt) return;
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TRACE("hwnd=%04x, pt=%p, x=%d, y=%d\n",
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Caret.hwnd, pt, Caret.x, Caret.y);
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pt->x = (INT16)Caret.x;
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pt->y = (INT16)Caret.y;
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}
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/*****************************************************************
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* GetCaretPos (USER32.@)
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*/
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BOOL WINAPI GetCaretPos( LPPOINT pt )
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{
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if (!Caret.hwnd || !pt) return FALSE;
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pt->x = Caret.x;
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pt->y = Caret.y;
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return TRUE;
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}
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