VOID
FASTCALL
IntGdiSetSolidPenColor(HPEN hPen, COLORREF Color)
{
PBRUSH pbrPen;
pbrPen = PEN_ShareLockPen(hPen);
if (pbrPen)
{
if (pbrPen->flAttrs & BR_IS_SOLID)
{
pbrPen->BrushAttr.lbColor = Color & 0xFFFFFF;
}
PEN_ShareUnlockPen(pbrPen);
}
}
BOOL
FASTCALL
IntRoundRect(
PDC dc,
int Left,
int Top,
int Right,
int Bottom,
int xCurveDiameter,
int yCurveDiameter)
{
PDC_ATTR pdcattr;
PBRUSH pbrLine, pbrFill;
RECTL RectBounds;
LONG PenWidth, PenOrigWidth;
BOOL ret = TRUE; // Default to success
BRUSH brushTemp;
ASSERT ( dc ); // Caller's responsibility to set this up
if ( PATH_IsPathOpen(dc->dclevel) )
return PATH_RoundRect ( dc, Left, Top, Right, Bottom,
xCurveDiameter, yCurveDiameter );
if ((Left == Right) || (Top == Bottom)) return TRUE;
xCurveDiameter = max(abs( xCurveDiameter ), 1);
yCurveDiameter = max(abs( yCurveDiameter ), 1);
if (Right < Left)
{
INT tmp = Right; Right = Left; Left = tmp;
}
if (Bottom < Top)
{
INT tmp = Bottom; Bottom = Top; Top = tmp;
}
pdcattr = dc->pdcattr;
if (pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
DC_vUpdateFillBrush(dc);
if (pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
DC_vUpdateLineBrush(dc);
pbrLine = PEN_ShareLockPen(pdcattr->hpen);
if (!pbrLine)
{
/* Nothing to do, as we don't have a bitmap */
EngSetLastError(ERROR_INTERNAL_ERROR);
return FALSE;
}
PenOrigWidth = PenWidth = pbrLine->ptPenWidth.x;
if (pbrLine->ulPenStyle == PS_NULL) PenWidth = 0;
if (pbrLine->ulPenStyle == PS_INSIDEFRAME)
{
if (2*PenWidth > (Right - Left)) PenWidth = (Right -Left + 1)/2;
if (2*PenWidth > (Bottom - Top)) PenWidth = (Bottom -Top + 1)/2;
Left += PenWidth / 2;
Right -= (PenWidth - 1) / 2;
Top += PenWidth / 2;
Bottom -= (PenWidth - 1) / 2;
}
if (!PenWidth) PenWidth = 1;
pbrLine->ptPenWidth.x = PenWidth;
RectBounds.left = Left;
RectBounds.top = Top;
RectBounds.right = Right;
RectBounds.bottom = Bottom;
IntLPtoDP(dc, (LPPOINT)&RectBounds, 2);
RectBounds.left += dc->ptlDCOrig.x;
RectBounds.top += dc->ptlDCOrig.y;
RectBounds.right += dc->ptlDCOrig.x;
RectBounds.bottom += dc->ptlDCOrig.y;
pbrFill = BRUSH_ShareLockBrush(pdcattr->hbrush);
if (!pbrFill)
{
DPRINT1("FillRound Fail\n");
EngSetLastError(ERROR_INTERNAL_ERROR);
ret = FALSE;
}
else
{
DC_vPrepareDCsForBlit(dc, RectBounds, NULL, RectBounds);
RtlCopyMemory(&brushTemp, pbrFill, sizeof(brushTemp));
brushTemp.ptOrigin.x += RectBounds.left - Left;
brushTemp.ptOrigin.y += RectBounds.top - Top;
ret = IntFillRoundRect( dc,
RectBounds.left,
RectBounds.top,
RectBounds.right,
RectBounds.bottom,
xCurveDiameter,
yCurveDiameter,
&brushTemp);
BRUSH_ShareUnlockBrush(pbrFill);
if (ret)
{
ret = IntDrawRoundRect( dc,
RectBounds.left,
RectBounds.top,
RectBounds.right,
RectBounds.bottom,
xCurveDiameter,
yCurveDiameter,
pbrLine);
}
DC_vFinishBlit(dc, NULL);
}
pbrLine->ptPenWidth.x = PenOrigWidth;
PEN_ShareUnlockPen(pbrLine);
return ret;
}
BOOL APIENTRY
NtGdiEllipse(
HDC hDC,
int Left,
int Top,
int Right,
int Bottom)
{
PDC dc;
PDC_ATTR pdcattr;
RECTL RectBounds;
PBRUSH pbrush;
BOOL ret = TRUE;
LONG PenWidth, PenOrigWidth;
LONG RadiusX, RadiusY, CenterX, CenterY;
PBRUSH pFillBrushObj;
BRUSH tmpFillBrushObj;
if ((Left == Right) || (Top == Bottom)) return TRUE;
dc = DC_LockDc(hDC);
if (dc == NULL)
{
EngSetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if (dc->dctype == DC_TYPE_INFO)
{
DC_UnlockDc(dc);
/* Yes, Windows really returns TRUE in this case */
return TRUE;
}
if (PATH_IsPathOpen(dc->dclevel))
{
ret = PATH_Ellipse(dc, Left, Top, Right, Bottom);
DC_UnlockDc(dc);
return ret;
}
if (Right < Left)
{
INT tmp = Right; Right = Left; Left = tmp;
}
if (Bottom < Top)
{
INT tmp = Bottom; Bottom = Top; Top = tmp;
}
pdcattr = dc->pdcattr;
if (pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
DC_vUpdateFillBrush(dc);
if (pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
DC_vUpdateLineBrush(dc);
pbrush = PEN_ShareLockPen(pdcattr->hpen);
if (!pbrush)
{
DPRINT1("Ellipse Fail 1\n");
DC_UnlockDc(dc);
EngSetLastError(ERROR_INTERNAL_ERROR);
return FALSE;
}
PenOrigWidth = PenWidth = pbrush->ptPenWidth.x;
if (pbrush->ulPenStyle == PS_NULL) PenWidth = 0;
if (pbrush->ulPenStyle == PS_INSIDEFRAME)
{
if (2*PenWidth > (Right - Left)) PenWidth = (Right -Left + 1)/2;
if (2*PenWidth > (Bottom - Top)) PenWidth = (Bottom -Top + 1)/2;
Left += PenWidth / 2;
Right -= (PenWidth - 1) / 2;
Top += PenWidth / 2;
Bottom -= (PenWidth - 1) / 2;
}
if (!PenWidth) PenWidth = 1;
pbrush->ptPenWidth.x = PenWidth;
RectBounds.left = Left;
RectBounds.right = Right;
RectBounds.top = Top;
RectBounds.bottom = Bottom;
IntLPtoDP(dc, (LPPOINT)&RectBounds, 2);
RectBounds.left += dc->ptlDCOrig.x;
RectBounds.right += dc->ptlDCOrig.x;
RectBounds.top += dc->ptlDCOrig.y;
RectBounds.bottom += dc->ptlDCOrig.y;
// Setup for dynamic width and height.
RadiusX = max((RectBounds.right - RectBounds.left) / 2, 2); // Needs room
RadiusY = max((RectBounds.bottom - RectBounds.top) / 2, 2);
CenterX = (RectBounds.right + RectBounds.left) / 2;
CenterY = (RectBounds.bottom + RectBounds.top) / 2;
DPRINT("Ellipse 1: Left: %d, Top: %d, Right: %d, Bottom: %d\n",
RectBounds.left,RectBounds.top,RectBounds.right,RectBounds.bottom);
DPRINT("Ellipse 2: XLeft: %d, YLeft: %d, Width: %d, Height: %d\n",
CenterX - RadiusX, CenterY + RadiusY, RadiusX*2, RadiusY*2);
pFillBrushObj = BRUSH_ShareLockBrush(pdcattr->hbrush);
if (NULL == pFillBrushObj)
{
DPRINT1("FillEllipse Fail\n");
EngSetLastError(ERROR_INTERNAL_ERROR);
ret = FALSE;
}
else
{
RtlCopyMemory(&tmpFillBrushObj, pFillBrushObj, sizeof(tmpFillBrushObj));
//tmpFillBrushObj.ptOrigin.x += RectBounds.left - Left;
//tmpFillBrushObj.ptOrigin.y += RectBounds.top - Top;
tmpFillBrushObj.ptOrigin.x += dc->ptlDCOrig.x;
tmpFillBrushObj.ptOrigin.y += dc->ptlDCOrig.y;
DC_vPrepareDCsForBlit(dc, RectBounds, NULL, RectBounds);
ret = IntFillEllipse( dc,
CenterX - RadiusX,
CenterY - RadiusY,
RadiusX*2, // Width
RadiusY*2, // Height
&tmpFillBrushObj);
BRUSH_ShareUnlockBrush(pFillBrushObj);
if (ret)
{
ret = IntDrawEllipse( dc,
CenterX - RadiusX,
CenterY - RadiusY,
RadiusX*2, // Width
RadiusY*2, // Height
pbrush);
}
DC_vFinishBlit(dc, NULL);
}
pbrush->ptPenWidth.x = PenOrigWidth;
PEN_ShareUnlockPen(pbrush);
DC_UnlockDc(dc);
DPRINT("Ellipse Exit.\n");
return ret;
}
static
BOOL
FASTCALL
IntArc( DC *dc,
int Left,
int Top,
int Right,
int Bottom,
int XRadialStart,
int YRadialStart,
int XRadialEnd,
int YRadialEnd,
ARCTYPE arctype)
{
PDC_ATTR pdcattr;
RECTL RectBounds, RectSEpts;
PBRUSH pbrPen;
SURFACE *psurf;
BOOL ret = TRUE;
LONG PenWidth, PenOrigWidth;
double AngleStart, AngleEnd;
LONG RadiusX, RadiusY, CenterX, CenterY;
LONG SfCx, SfCy, EfCx, EfCy;
if (Right < Left)
{
INT tmp = Right; Right = Left; Left = tmp;
}
if (Bottom < Top)
{
INT tmp = Bottom; Bottom = Top; Top = tmp;
}
/* Check if the target rect is empty */
if ((Left == Right) || (Top == Bottom)) return TRUE;
// FIXME: this needs to be verified
if ((arctype == GdiTypeChord ) || (arctype == GdiTypePie))
{
if ((Right - Left == 1) || (Bottom - Top == 1))
return TRUE;
}
pdcattr = dc->pdcattr;
pbrPen = PEN_ShareLockPen(pdcattr->hpen);
if (!pbrPen)
{
DPRINT1("Arc Fail 1\n");
EngSetLastError(ERROR_INTERNAL_ERROR);
return FALSE;
}
PenOrigWidth = PenWidth = pbrPen->ptPenWidth.x;
if (pbrPen->ulPenStyle == PS_NULL) PenWidth = 0;
if (pbrPen->ulPenStyle == PS_INSIDEFRAME)
{
if (2*PenWidth > (Right - Left)) PenWidth = (Right -Left + 1)/2;
if (2*PenWidth > (Bottom - Top)) PenWidth = (Bottom -Top + 1)/2;
Left += PenWidth / 2;
Right -= (PenWidth - 1) / 2;
Top += PenWidth / 2;
Bottom -= (PenWidth - 1) / 2;
}
if (!PenWidth) PenWidth = 1;
pbrPen->ptPenWidth.x = PenWidth;
RectBounds.left = Left;
RectBounds.right = Right;
RectBounds.top = Top;
RectBounds.bottom = Bottom;
RectSEpts.left = XRadialStart;
RectSEpts.top = YRadialStart;
RectSEpts.right = XRadialEnd;
RectSEpts.bottom = YRadialEnd;
IntLPtoDP(dc, (LPPOINT)&RectBounds, 2);
IntLPtoDP(dc, (LPPOINT)&RectSEpts, 2);
RectBounds.left += dc->ptlDCOrig.x;
RectBounds.right += dc->ptlDCOrig.x;
RectBounds.top += dc->ptlDCOrig.y;
RectBounds.bottom += dc->ptlDCOrig.y;
RectSEpts.left += dc->ptlDCOrig.x;
RectSEpts.top += dc->ptlDCOrig.y;
RectSEpts.right += dc->ptlDCOrig.x;
RectSEpts.bottom += dc->ptlDCOrig.y;
DPRINT("1: StartX: %d, StartY: %d, EndX: %d, EndY: %d\n",
RectSEpts.left,RectSEpts.top,RectSEpts.right,RectSEpts.bottom);
DPRINT("1: Left: %d, Top: %d, Right: %d, Bottom: %d\n",
RectBounds.left,RectBounds.top,RectBounds.right,RectBounds.bottom);
RadiusX = max((RectBounds.right - RectBounds.left) / 2, 1);
RadiusY = max((RectBounds.bottom - RectBounds.top) / 2, 1);
CenterX = (RectBounds.right + RectBounds.left) / 2;
CenterY = (RectBounds.bottom + RectBounds.top) / 2;
AngleEnd = atan2((RectSEpts.bottom - CenterY), RectSEpts.right - CenterX)*(360.0/(M_PI*2));
AngleStart = atan2((RectSEpts.top - CenterY), RectSEpts.left - CenterX)*(360.0/(M_PI*2));
/* Edge Case: Check if the start segments overlaps(is equal) the end segment */
if (AngleEnd == AngleStart)
{
AngleStart = AngleEnd + 360.0; // Arc(), ArcTo(), Pie() and Chord() are counterclockwise APIs.
}
SfCx = (LONG)(Rcos(AngleStart) * RadiusX);
SfCy = (LONG)(Rsin(AngleStart) * RadiusY);
EfCx = (LONG)(Rcos(AngleEnd) * RadiusX);
EfCy = (LONG)(Rsin(AngleEnd) * RadiusY);
if ((arctype == GdiTypePie) || (arctype == GdiTypeChord))
{
ret = IntFillArc( dc,
RectBounds.left,
RectBounds.top,
abs(RectBounds.right-RectBounds.left), // Width
abs(RectBounds.bottom-RectBounds.top), // Height
AngleStart,
AngleEnd,
arctype);
}
ret = IntDrawArc( dc,
RectBounds.left,
RectBounds.top,
abs(RectBounds.right-RectBounds.left), // Width
abs(RectBounds.bottom-RectBounds.top), // Height
AngleStart,
AngleEnd,
arctype,
pbrPen);
psurf = dc->dclevel.pSurface;
if (NULL == psurf)
{
DPRINT1("Arc Fail 2\n");
PEN_ShareUnlockPen(pbrPen);
EngSetLastError(ERROR_INTERNAL_ERROR);
return FALSE;
}
if (arctype == GdiTypePie)
{
PUTLINE(CenterX, CenterY, SfCx + CenterX, SfCy + CenterY, dc->eboLine);
PUTLINE(EfCx + CenterX, EfCy + CenterY, CenterX, CenterY, dc->eboLine);
}
if (arctype == GdiTypeChord)
PUTLINE(EfCx + CenterX, EfCy + CenterY, SfCx + CenterX, SfCy + CenterY, dc->eboLine);
pbrPen->ptPenWidth.x = PenOrigWidth;
PEN_ShareUnlockPen(pbrPen);
DPRINT("IntArc Exit.\n");
return ret;
}
