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Stippi + zooey:

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* fixed LineHeight() for the case when the textview does not yet contain
  anything - instead of returning 0 we now return the lineheight of the
  default style (or the textview's font).
Fixes #2231


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28194 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Oliver Tappe 2008-10-16 21:40:12 +00:00
parent 9b0eb8c8f4
commit 9f3fce1eac
1 changed files with 15 additions and 14 deletions
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29
src/kits/interface/TextView.cpp
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@ -1969,7 +1969,21 @@ BTextView::LineWidth(int32 lineNum) const
float
BTextView::LineHeight(int32 lineNum) const
{
return TextHeight(lineNum, lineNum);
float lineHeight = TextHeight(lineNum, lineNum);
if (lineHeight == 0.0) {
// We probably don't have text content yet. Take the initial
// style's font height or fall back to the plain font.
const BFont* font;
fStyles->GetNullStyle(&font, NULL);
if (font == NULL)
font = be_plain_font;
font_height fontHeight;
font->GetHeight(&fontHeight);
// This is how the height is calculated in _RecalculateLineBreaks().
lineHeight = ceilf(fontHeight.ascent + fontHeight.descent) + 1;
}
return lineHeight;
}
@ -2734,19 +2748,6 @@ BTextView::_ValidateLayoutData()
CALLED();
float lineHeight = ceilf(LineHeight(0));
if (lineHeight == 0.0) {
// We probably don't have text content yet. Take the initial
// style's font height or fall back to the plain font.
const BFont* font;
fStyles->GetNullStyle(&font, NULL);
if (font == NULL)
font = be_plain_font;
font_height fontHeight;
font->GetHeight(&fontHeight);
// This is how the height is calculated in _RecalculateLineBreaks().
lineHeight = ceilf(fontHeight.ascent + fontHeight.descent) + 1;
}
TRACE("line height: %.2f\n", lineHeight);
// compute our minimal size