NS_IMETHODIMP
nsThebesRenderingContext::Translate(nscoord aX, nscoord aY)
{
PR_LOG(gThebesGFXLog, PR_LOG_DEBUG, ("## %p nsTRC::Translate %d %d\n", this, aX, aY));
mThebes->Translate (gfxPoint(FROM_TWIPS(aX), FROM_TWIPS(aY)));
return NS_OK;
}
void
nsThebesRenderingContext::TransformCoord (nscoord *aX, nscoord *aY)
{
PR_LOG(gThebesGFXLog, PR_LOG_DEBUG, ("## %p nsTRC::TransformCoord\n", this));
gfxPoint pt(FROM_TWIPS(*aX), FROM_TWIPS(*aY));
pt = mThebes->UserToDevice (pt);
*aX = TO_TWIPS(pt.x);
*aY = TO_TWIPS(pt.y);
}
void
nsRenderingContext::FillPolygon(const nsPoint twPoints[], PRInt32 aNumPoints)
{
if (aNumPoints == 0)
return;
nsAutoArrayPtr<gfxPoint> pxPoints(new gfxPoint[aNumPoints]);
for (int i = 0; i < aNumPoints; i++) {
pxPoints[i].x = FROM_TWIPS(twPoints[i].x);
pxPoints[i].y = FROM_TWIPS(twPoints[i].y);
}
mThebes->NewPath();
mThebes->Polygon(pxPoints, aNumPoints);
mThebes->Fill();
}
NS_IMETHODIMP
nsThebesRenderingContext::DrawLine(nscoord aX0, nscoord aY0, nscoord aX1, nscoord aY1)
{
PR_LOG(gThebesGFXLog, PR_LOG_DEBUG, ("## %p nsTRC::DrawLine %d %d %d %d\n", this, aX0, aY0, aX1, aY1));
gfxPoint p0 = gfxPoint(FROM_TWIPS(aX0), FROM_TWIPS(aY0));
gfxPoint p1 = gfxPoint(FROM_TWIPS(aX1), FROM_TWIPS(aY1));
// we can't draw thick lines with gfx, so we always assume we want pixel-aligned
// lines if the rendering context is at 1.0 scale
gfxMatrix savedMatrix = mThebes->CurrentMatrix();
if (!savedMatrix.HasNonTranslation()) {
p0 = mThebes->UserToDevice(p0);
p1 = mThebes->UserToDevice(p1);
p0.Round();
p1.Round();
mThebes->IdentityMatrix();
mThebes->NewPath();
// snap straight lines
if (p0.x == p1.x) {
mThebes->Line(p0 + gfxPoint(0.5, 0),
p1 + gfxPoint(0.5, 0));
} else if (p0.y == p1.y) {
mThebes->Line(p0 + gfxPoint(0, 0.5),
p1 + gfxPoint(0, 0.5));
} else {
mThebes->Line(p0, p1);
}
mThebes->Stroke();
mThebes->SetMatrix(savedMatrix);
} else {
mThebes->NewPath();
mThebes->Line(p0, p1);
mThebes->Stroke();
}
return NS_OK;
}
void
nsRenderingContext::DrawLine(nscoord aX0, nscoord aY0,
nscoord aX1, nscoord aY1)
{
gfxPoint p0 = gfxPoint(FROM_TWIPS(aX0), FROM_TWIPS(aY0));
gfxPoint p1 = gfxPoint(FROM_TWIPS(aX1), FROM_TWIPS(aY1));
// we can't draw thick lines with gfx, so we always assume we want
// pixel-aligned lines if the rendering context is at 1.0 scale
gfxMatrix savedMatrix = mThebes->CurrentMatrix();
if (!savedMatrix.HasNonTranslation()) {
p0 = mThebes->UserToDevice(p0);
p1 = mThebes->UserToDevice(p1);
p0.Round();
p1.Round();
mThebes->IdentityMatrix();
mThebes->NewPath();
// snap straight lines
if (p0.x == p1.x) {
mThebes->Line(p0 + gfxPoint(0.5, 0),
p1 + gfxPoint(0.5, 0));
} else if (p0.y == p1.y) {
mThebes->Line(p0 + gfxPoint(0, 0.5),
p1 + gfxPoint(0, 0.5));
} else {
mThebes->Line(p0, p1);
}
mThebes->Stroke();
mThebes->SetMatrix(savedMatrix);
} else {
mThebes->NewPath();
mThebes->Line(p0, p1);
mThebes->Stroke();
}
}
NS_IMETHODIMP
nsThebesRenderingContext::FillPolygon(const nsPoint twPoints[], PRInt32 aNumPoints)
{
PR_LOG(gThebesGFXLog, PR_LOG_DEBUG, ("## %p nsTRC::FillPolygon %d\n", this, aNumPoints));
if (aNumPoints == 0)
return NS_OK;
if (aNumPoints == 4) {
}
nsAutoArrayPtr<gfxPoint> pxPoints(new gfxPoint[aNumPoints]);
for (int i = 0; i < aNumPoints; i++) {
pxPoints[i].x = FROM_TWIPS(twPoints[i].x);
pxPoints[i].y = FROM_TWIPS(twPoints[i].y);
}
mThebes->NewPath();
mThebes->Polygon(pxPoints, aNumPoints);
mThebes->Fill();
return NS_OK;
}
void
nsRenderingContext::FillEllipse(nscoord aX, nscoord aY,
nscoord aWidth, nscoord aHeight)
{
mThebes->NewPath();
mThebes->Ellipse(gfxPoint(FROM_TWIPS(aX) + FROM_TWIPS(aWidth)/2.0,
FROM_TWIPS(aY) + FROM_TWIPS(aHeight)/2.0),
gfxSize(FROM_TWIPS(aWidth),
FROM_TWIPS(aHeight)));
mThebes->Fill();
}
NS_IMETHODIMP
nsThebesRenderingContext::FillEllipse(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight)
{
PR_LOG(gThebesGFXLog, PR_LOG_DEBUG, ("## %p nsTRC::FillEllipse [%d,%d,%d,%d]\n", this, aX, aY, aWidth, aHeight));
mThebes->NewPath();
mThebes->Ellipse(gfxPoint(FROM_TWIPS(aX) + FROM_TWIPS(aWidth)/2.0,
FROM_TWIPS(aY) + FROM_TWIPS(aHeight)/2.0),
gfxSize(FROM_TWIPS(aWidth),
FROM_TWIPS(aHeight)));
mThebes->Fill();
return NS_OK;
}
void
nsRenderingContext::Translate(const nsPoint& aPt)
{
mThebes->Translate(gfxPoint(FROM_TWIPS(aPt.x), FROM_TWIPS(aPt.y)));
}
