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Add Arc.c to win32k. See gdi32 painting.c for more info.

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svn path=/trunk/; revision=25508
This commit is contained in:
James Tabor 2007-01-18 13:56:58 +00:00
parent 48cd2b3e75
commit fd1467e3a2
1 changed files with 132 additions and 0 deletions
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132
reactos/subsystems/win32/win32k/objects/arc.c Normal file
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#include <w32k.h>
#define NDEBUG
#include <debug.h>
static BOOL FASTCALL
IntArc( DC *dc, int LeftRect, int TopRect, int RightRect, int BottomRect,
int XStartArc, int YStartArc, int XEndArc, int YEndArc, ARCTYPE arctype)
{
return TRUE;
}
BOOL FASTCALL
IntGdiArcInternal(
ARCTYPE arctype,
DC *dc,
int LeftRect,
int TopRect,
int RightRect,
int BottomRect,
int XStartArc,
int YStartArc,
int XEndArc,
int YEndArc)
{
INT rx, ry;
RECT rc, rc1;
if(PATH_IsPathOpen(dc->w.path))
{
INT type = arctype;
if (arctype == GdiTypeArcTo) type = GdiTypeArc;
return PATH_Arc(dc, LeftRect, TopRect, RightRect, BottomRect,
XStartArc, YStartArc, XEndArc, YEndArc, type);
}
IntGdiSetRect(&rc, LeftRect, TopRect, RightRect, BottomRect);
IntGdiSetRect(&rc1, XStartArc, YStartArc, XEndArc, YEndArc);
if (dc->w.flags & DCX_WINDOW) //window rectangle instead of client rectangle
{
HWND hWnd;
PWINDOW_OBJECT Window;
hWnd = IntWindowFromDC(dc->hSelf);
Window = UserGetWindowObject(hWnd);
if(!Window) return FALSE;
rc.left += Window->ClientRect.left;
rc.top += Window->ClientRect.top;
rc.right += Window->ClientRect.left;
rc.bottom += Window->ClientRect.top;
rc1.left += Window->ClientRect.left;
rc1.top += Window->ClientRect.top;
rc1.right += Window->ClientRect.left;
rc1.bottom += Window->ClientRect.top;
}
rx = (rc.right - rc.left)/2 - 1;
ry = (rc.bottom - rc.top)/2 -1;
rc.left += rx;
rc.top += ry;
return IntArc( dc, rc.left, rc.top, rx, ry,
rc1.left, rc1.top, rc1.right, rc1.bottom, arctype);
}
BOOL
STDCALL
NtGdiArcInternal(
ARCTYPE arctype,
HDC hDC,
int LeftRect,
int TopRect,
int RightRect,
int BottomRect,
int XStartArc,
int YStartArc,
int XEndArc,
int YEndArc)
{
DC *dc;
BOOL Ret;
dc = DC_LockDc (hDC);
if(!dc)
{
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
if (dc->IsIC)
{
DC_UnlockDc(dc);
/* Yes, Windows really returns TRUE in this case */
return TRUE;
}
if (arctype == GdiTypeArcTo)
{
// Line from current position to starting point of arc
if ( !IntGdiLineTo(dc, XStartArc, YStartArc) )
{
DC_UnlockDc(dc);
return FALSE;
}
}
Ret = IntGdiArcInternal(
arctype,
dc,
LeftRect,
TopRect,
RightRect,
BottomRect,
XStartArc,
YStartArc,
XEndArc,
YEndArc);
if (arctype == GdiTypeArcTo)
{
// If no error occured, the current position is moved to the ending point of the arc.
if(Ret)
IntGdiMoveToEx(dc, XEndArc, YEndArc, NULL);
}
DC_UnlockDc( dc );
return Ret;
}