//------------------------------------------------------------------------------
void
nsSimplePageSequenceFrame::PaintPageSequence(nsRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsPoint aPt) {
nsRect rect = aDirtyRect;
float scale = PresContext()->GetPrintPreviewScale();
aRenderingContext.PushState();
nsPoint framePos = aPt;
aRenderingContext.Translate(framePos);
rect -= framePos;
aRenderingContext.Scale(scale, scale);
rect.ScaleRoundOut(1.0f / scale);
// Now the rect and the rendering coordinates are are relative to this frame.
// Loop over the pages and paint them.
nsIFrame* child = GetFirstChild(nsnull);
while (child) {
nsPoint pt = child->GetPosition();
// The rendering context has to be translated before each call to PaintFrame
aRenderingContext.PushState();
aRenderingContext.Translate(pt);
nsLayoutUtils::PaintFrame(&aRenderingContext, child,
nsRegion(rect - pt), NS_RGBA(0,0,0,0),
nsLayoutUtils::PAINT_SYNC_DECODE_IMAGES);
aRenderingContext.PopState();
child = child->GetNextSibling();
}
aRenderingContext.PopState();
}
void
nsFieldSetFrame::PaintBorderBackground(nsRenderingContext& aRenderingContext,
nsPoint aPt, const nsRect& aDirtyRect, uint32_t aBGFlags)
{
// if the border is smaller than the legend. Move the border down
// to be centered on the legend.
// FIXME: This means border-radius clamping is incorrect; we should
// override nsIFrame::GetBorderRadii.
nsRect rect = VisualBorderRectRelativeToSelf();
nscoord yoff = rect.y;
rect += aPt;
nsPresContext* presContext = PresContext();
nsCSSRendering::PaintBackground(presContext, aRenderingContext, this,
aDirtyRect, rect, aBGFlags);
nsCSSRendering::PaintBoxShadowInner(presContext, aRenderingContext,
this, rect, aDirtyRect);
if (nsIFrame* legend = GetLegend()) {
nscoord topBorder = StyleBorder()->GetComputedBorderWidth(NS_SIDE_TOP);
// Use the rect of the legend frame, not mLegendRect, so we draw our
// border under the legend's left and right margins.
nsRect legendRect = legend->GetRect() + aPt;
// we should probably use PaintBorderEdges to do this but for now just use clipping
// to achieve the same effect.
// draw left side
nsRect clipRect(rect);
clipRect.width = legendRect.x - rect.x;
clipRect.height = topBorder;
aRenderingContext.PushState();
aRenderingContext.IntersectClip(clipRect);
nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
aDirtyRect, rect, mStyleContext);
aRenderingContext.PopState();
// draw right side
clipRect = rect;
clipRect.x = legendRect.XMost();
clipRect.width = rect.XMost() - legendRect.XMost();
clipRect.height = topBorder;
aRenderingContext.PushState();
aRenderingContext.IntersectClip(clipRect);
nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
aDirtyRect, rect, mStyleContext);
aRenderingContext.PopState();
// draw bottom
clipRect = rect;
clipRect.y += topBorder;
clipRect.height = mRect.height - (yoff + topBorder);
aRenderingContext.PushState();
aRenderingContext.IntersectClip(clipRect);
nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
aDirtyRect, rect, mStyleContext);
aRenderingContext.PopState();
} else {
nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
aDirtyRect,
nsRect(aPt, mRect.Size()),
mStyleContext);
}
}
// Draw a header or footer string
// @param aRenderingContext - rendering context to draw into
// @param aHeaderFooter - indicates whether it is a header or footer
// @param aJust - indicates where the string is located within the header/footer
// @param aStr - the string to be drawn
// @param aRect - the rect of the page
// @param aHeight - the height of the font
// @param aAscent - the ascent of the font
// @param aWidth - available width for the string
void
nsPageFrame::DrawHeaderFooter(nsRenderingContext& aRenderingContext,
nsHeaderFooterEnum aHeaderFooter,
int32_t aJust,
const nsString& aStr,
const nsRect& aRect,
nscoord aAscent,
nscoord aHeight,
nscoord aWidth)
{
nscoord contentWidth = aWidth - (mPD->mEdgePaperMargin.left + mPD->mEdgePaperMargin.right);
if ((aHeaderFooter == eHeader && aHeight < mPD->mReflowMargin.top) ||
(aHeaderFooter == eFooter && aHeight < mPD->mReflowMargin.bottom)) {
nsAutoString str;
ProcessSpecialCodes(aStr, str);
int32_t indx;
int32_t textWidth = 0;
const PRUnichar* text = str.get();
int32_t len = (int32_t)str.Length();
if (len == 0) {
return; // bail is empty string
}
// find how much text fits, the "position" is the size of the available area
if (nsLayoutUtils::BinarySearchForPosition(&aRenderingContext, text, 0, 0, 0, len,
int32_t(contentWidth), indx, textWidth)) {
if (indx < len-1 ) {
// we can't fit in all the text
if (indx > 3) {
// But we can fit in at least 4 chars. Show all but 3 of them, then
// an ellipsis.
// XXXbz for non-plane0 text, this may be cutting things in the
// middle of a codepoint! Also, we have no guarantees that the three
// dots will fit in the space the three chars we removed took up with
// these font metrics!
str.Truncate(indx-3);
str.AppendLiteral("...");
} else {
// We can only fit 3 or fewer chars. Just show nothing
str.Truncate();
}
}
} else {
return; // bail if couldn't find the correct length
}
if (HasRTLChars(str)) {
PresContext()->SetBidiEnabled();
}
// cacl the x and y positions of the text
nscoord x = GetXPosition(aRenderingContext, aRect, aJust, str);
nscoord y;
if (aHeaderFooter == eHeader) {
y = aRect.y + mPD->mExtraMargin.top + mPD->mEdgePaperMargin.top;
} else {
y = aRect.YMost() - aHeight - mPD->mExtraMargin.bottom - mPD->mEdgePaperMargin.bottom;
}
// set up new clip and draw the text
aRenderingContext.PushState();
aRenderingContext.SetColor(NS_RGB(0,0,0));
aRenderingContext.IntersectClip(aRect);
nsLayoutUtils::DrawString(this, &aRenderingContext, str.get(), str.Length(), nsPoint(x, y + aAscent));
aRenderingContext.PopState();
}
}
