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For drawing a caret, internally replaced the brush by a bitmap (this 

allows caret of size > 8x8),
This commit is contained in:
Eric Pouech 2001-11-06 00:52:12 +00:00 committed by Alexandre Julliard
parent 4ae7195c25
commit c5bc3ebc5d
1 changed files with 52 additions and 11 deletions
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63
windows/caret.c
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@ -3,6 +3,7 @@
*
* Copyright 1993 David Metcalfe
* Copyright 1996 Frans van Dorsselaer
* Copyright 2001 Eric Pouech
*/
#include "windef.h"
@ -25,7 +26,7 @@ typedef struct
INT y;
INT width;
INT height;
HBRUSH hBrush;
HBITMAP hBmp;
UINT timeout;
UINT timerid;
} CARET;
@ -62,7 +63,7 @@ void CARET_GetRect(LPRECT lprc)
static void CARET_DisplayCaret( DISPLAY_CARET status )
{
HDC hdc;
HBRUSH hPrevBrush;
HDC hCompDC;
if (Caret.on && (status == CARET_ON)) return;
if (!Caret.on && (status == CARET_OFF)) return;
@ -72,9 +73,16 @@ static void CARET_DisplayCaret( DISPLAY_CARET status )
Caret.on = !Caret.on;
/* do not use DCX_CACHE here, for x,y,width,height are in logical units */
if (!(hdc = GetDCEx( Caret.hwnd, 0, DCX_USESTYLE /*| DCX_CACHE*/ ))) return;
hPrevBrush = SelectObject( hdc, Caret.hBrush );
PatBlt( hdc, Caret.x, Caret.y, Caret.width, Caret.height, PATINVERT );
SelectObject( hdc, hPrevBrush );
hCompDC = CreateCompatibleDC(hdc);
if (hCompDC)
{
HBITMAP hPrevBmp;
hPrevBmp = SelectObject(hCompDC, Caret.hBmp);
BitBlt(hdc, Caret.x, Caret.y, Caret.width, Caret.height, hCompDC, 0, 0, SRCINVERT);
SelectObject(hCompDC, hPrevBmp);
DeleteDC(hCompDC);
}
ReleaseDC( Caret.hwnd, hdc );
}
@ -147,16 +155,49 @@ BOOL WINAPI CreateCaret( HWND hwnd, HBITMAP bitmap,
if (!GetObjectA( bitmap, sizeof(bmp), &bmp )) return FALSE;
Caret.width = bmp.bmWidth;
Caret.height = bmp.bmHeight;
/* FIXME: we should make a copy of the bitmap instead of a brush */
Caret.hBrush = CreatePatternBrush( bitmap );
bmp.bmBits = NULL;
Caret.hBmp = CreateBitmapIndirect(&bmp);
if (Caret.hBmp)
{
/* copy the bitmap */
LPBYTE buf = HeapAlloc(GetProcessHeap(), 0, bmp.bmWidthBytes * bmp.bmHeight);
GetBitmapBits(bitmap, bmp.bmWidthBytes * bmp.bmHeight, buf);
SetBitmapBits(Caret.hBmp, bmp.bmWidthBytes * bmp.bmHeight, buf);
HeapFree(GetProcessHeap(), 0, buf);
}
}
else
{
HDC hdc;
Caret.width = width ? width : GetSystemMetrics(SM_CXBORDER);
Caret.height = height ? height : GetSystemMetrics(SM_CYBORDER);
Caret.hBrush = CreateSolidBrush(bitmap ?
GetSysColor(COLOR_GRAYTEXT) :
GetSysColor(COLOR_WINDOW) );
Caret.hBmp = 0;
/* create the uniform bitmap on the fly */
hdc = GetDC(hwnd);
if (hdc)
{
HDC hMemDC = CreateCompatibleDC(hdc);
if (hMemDC)
{
RECT r;
r.left = r.top = 0;
r.right = Caret.width;
r.bottom = Caret.height;
if ((Caret.hBmp = CreateCompatibleBitmap(hMemDC, Caret.width, Caret.height)))
{
HBITMAP hPrevBmp = SelectObject(hMemDC, Caret.hBmp);
FillRect(hMemDC, &r, (bitmap ? COLOR_GRAYTEXT : COLOR_WINDOW) + 1);
SelectObject(hMemDC, hPrevBmp);
}
DeleteDC(hMemDC);
}
ReleaseDC(hwnd, hdc);
}
}
Caret.hwnd = WIN_GetFullHandle( hwnd );
@ -191,7 +232,7 @@ BOOL WINAPI DestroyCaret(void)
CARET_KillTimer();
CARET_DisplayCaret(CARET_OFF);
DeleteObject( Caret.hBrush );
DeleteObject( Caret.hBmp );
Caret.hwnd = 0;
return TRUE;
}