void
nsTextBoxFrame::PaintTitle(nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsPoint aPt)
{
if (mTitle.IsEmpty())
return;
nsRect textRect(CalcTextRect(aRenderingContext, aPt));
// Paint the text shadow before doing any foreground stuff
const nsStyleText* textStyle = GetStyleText();
if (textStyle->mTextShadow) {
// Text shadow happens with the last value being painted at the back,
// ie. it is painted first.
for (PRUint32 i = textStyle->mTextShadow->Length(); i > 0; --i) {
PaintOneShadow(aRenderingContext.ThebesContext(),
textRect,
textStyle->mTextShadow->ShadowAt(i - 1),
GetStyleColor()->mColor,
aDirtyRect);
}
}
DrawText(aRenderingContext, textRect, nsnull);
}
NS_IMETHODIMP
nsTextBoxFrame::DoLayout(nsBoxLayoutState& aBoxLayoutState)
{
if (mNeedsReflowCallback) {
nsIReflowCallback* cb = new nsAsyncAccesskeyUpdate(this);
if (cb) {
PresContext()->PresShell()->PostReflowCallback(cb);
}
mNeedsReflowCallback = PR_FALSE;
}
mState |= NS_STATE_NEED_LAYOUT;
nsresult rv = nsLeafBoxFrame::DoLayout(aBoxLayoutState);
const nsStyleText* textStyle = GetStyleText();
if (textStyle->mTextShadow) {
nsPoint origin(0,0);
nsRect textRect = CalcTextRect(*aBoxLayoutState.GetRenderingContext(), origin);
nsRect overflowRect(nsLayoutUtils::GetTextShadowRectsUnion(textRect, this));
overflowRect.UnionRect(overflowRect, nsRect(nsPoint(0, 0), GetSize()));
FinishAndStoreOverflow(&overflowRect, GetSize());
}
return rv;
}
nsRect
nsTextBoxFrame::CalcTextRect(nsIRenderingContext &aRenderingContext, const nsPoint &aTextOrigin)
{
nsRect textRect(aTextOrigin, GetSize());
nsMargin borderPadding;
GetBorderAndPadding(borderPadding);
textRect.Deflate(borderPadding);
// determine (cropped) title and underline position
nsPresContext* presContext = PresContext();
LayoutTitle(presContext, aRenderingContext, textRect);
// make the rect as small as our (cropped) text.
nscoord outerWidth = textRect.width;
textRect.width = mTitleWidth;
// Align our text within the overall rect by checking our text-align property.
const nsStyleVisibility* vis = GetStyleVisibility();
const nsStyleText* textStyle = GetStyleText();
if (textStyle->mTextAlign == NS_STYLE_TEXT_ALIGN_CENTER)
textRect.x += (outerWidth - textRect.width)/2;
else if (textStyle->mTextAlign == NS_STYLE_TEXT_ALIGN_RIGHT ||
(textStyle->mTextAlign == NS_STYLE_TEXT_ALIGN_DEFAULT &&
vis->mDirection == NS_STYLE_DIRECTION_RTL) ||
(textStyle->mTextAlign == NS_STYLE_TEXT_ALIGN_END &&
vis->mDirection == NS_STYLE_DIRECTION_LTR)) {
textRect.x += (outerWidth - textRect.width);
}
return textRect;
}
nsresult
nsGfxButtonControlFrame::GetLabel(nsXPIDLString& aLabel)
{
// Get the text from the "value" property on our content if there is
// one; otherwise set it to a default value (localized).
nsresult rv;
nsCOMPtr<nsIDOMHTMLInputElement> elt = do_QueryInterface(mContent);
if (mContent->HasAttr(kNameSpaceID_None, nsGkAtoms::value) && elt) {
rv = elt->GetValue(aLabel);
} else {
// Generate localized label.
// We can't make any assumption as to what the default would be
// because the value is localized for non-english platforms, thus
// it might not be the string "Reset", "Submit Query", or "Browse..."
rv = GetDefaultLabel(aLabel);
}
NS_ENSURE_SUCCESS(rv, rv);
// Compress whitespace out of label if needed.
if (!GetStyleText()->WhiteSpaceIsSignificant()) {
aLabel.CompressWhitespace();
} else if (aLabel.Length() > 2 && aLabel.First() == ' ' &&
aLabel.CharAt(aLabel.Length() - 1) == ' ') {
// This is a bit of a hack. The reason this is here is as follows: we now
// have default padding on our buttons to make them non-ugly.
// Unfortunately, IE-windows does not have such padding, so people will
// stick values like " ok " (with the spaces) in the buttons in an attempt
// to make them look decent. Unfortunately, if they do this the button
// looks way too big in Mozilla. Worse yet, if they do this _and_ set a
// fixed width for the button we run into trouble because our focus-rect
// border/padding and outer border take up 10px of the horizontal button
// space or so; the result is that the text is misaligned, even with the
// recentering we do in nsHTMLButtonFrame::Reflow. So to solve this, even
// if the whitespace is significant, single leading and trailing _spaces_
// (and not other whitespace) are removed. The proper solution, of
// course, is to not have the focus rect painting taking up 6px of
// horizontal space. We should do that instead (via XBL form controls or
// changing the renderer) and remove this.
aLabel.Cut(0, 1);
aLabel.Truncate(aLabel.Length() - 1);
}
return NS_OK;
}
nsresult
nsTextControlFrame::CalcIntrinsicSize(nsRenderingContext* aRenderingContext,
nsSize& aIntrinsicSize)
{
// Get leading and the Average/MaxAdvance char width
nscoord lineHeight = 0;
nscoord charWidth = 0;
nscoord charMaxAdvance = 0;
nsRefPtr<nsFontMetrics> fontMet;
nsresult rv =
nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fontMet));
NS_ENSURE_SUCCESS(rv, rv);
aRenderingContext->SetFont(fontMet);
lineHeight =
nsHTMLReflowState::CalcLineHeight(GetStyleContext(), NS_AUTOHEIGHT);
charWidth = fontMet->AveCharWidth();
charMaxAdvance = fontMet->MaxAdvance();
// Set the width equal to the width in characters
PRInt32 cols = GetCols();
aIntrinsicSize.width = cols * charWidth;
// To better match IE, take the maximum character width(in twips) and remove
// 4 pixels add this on as additional padding(internalPadding). But only do
// this if charMaxAdvance != charWidth; if they are equal, this is almost
// certainly a fixed-width font.
if (charWidth != charMaxAdvance) {
nscoord internalPadding = NS_MAX(0, charMaxAdvance -
nsPresContext::CSSPixelsToAppUnits(4));
nscoord t = nsPresContext::CSSPixelsToAppUnits(1);
// Round to a multiple of t
nscoord rest = internalPadding % t;
if (rest < t - rest) {
internalPadding -= rest;
} else {
internalPadding += t - rest;
}
// Now add the extra padding on (so that small input sizes work well)
aIntrinsicSize.width += internalPadding;
} else {
// This is to account for the anonymous <br> having a 1 twip width
// in Full Standards mode, see BRFrame::Reflow and bug 228752.
if (PresContext()->CompatibilityMode() == eCompatibility_FullStandards) {
aIntrinsicSize.width += 1;
}
// Also add in the padding of our value div child. Note that it hasn't
// been reflowed yet, so we can't get its used padding, but it shouldn't be
// using percentage padding anyway.
nsMargin childPadding;
nsIFrame* firstChild = GetFirstChild(nsnull);
if (firstChild && firstChild->GetStylePadding()->GetPadding(childPadding)) {
aIntrinsicSize.width += childPadding.LeftRight();
} else {
NS_ERROR("Percentage padding on value div?");
}
}
// Increment width with cols * letter-spacing.
{
const nsStyleCoord& lsCoord = GetStyleText()->mLetterSpacing;
if (eStyleUnit_Coord == lsCoord.GetUnit()) {
nscoord letterSpacing = lsCoord.GetCoordValue();
if (letterSpacing != 0) {
aIntrinsicSize.width += cols * letterSpacing;
}
}
}
// Set the height equal to total number of rows (times the height of each
// line, of course)
aIntrinsicSize.height = lineHeight * GetRows();
// Add in the size of the scrollbars for textarea
if (IsTextArea()) {
nsIFrame* first = GetFirstChild(nsnull);
nsIScrollableFrame *scrollableFrame = do_QueryFrame(first);
NS_ASSERTION(scrollableFrame, "Child must be scrollable");
if (scrollableFrame) {
nsMargin scrollbarSizes =
scrollableFrame->GetDesiredScrollbarSizes(PresContext(), aRenderingContext);
aIntrinsicSize.width += scrollbarSizes.LeftRight();
aIntrinsicSize.height += scrollbarSizes.TopBottom();;
}
}
return NS_OK;
}