Re: JTextPane: Workaround for invisible text with hanging indents?

Hello!

Christian Kaufhold <usenet@xxxxxxx> wrote:


> private float poolPreferredXSpan()

[...]

> private float poolMinimumXSpan()

[...]

I forgot to actually take the indent into account here. But at least
"poolMinimumXSpan" is not anywhere near working anyway (It always is just
the indent of the first line) -- there is no feature in View to find the
actual minimum width if all possible break points are chosen. Also see
javax.swing.text.html for a hack.

Anyway, some better readable, more correct implementations.

public float poolPreferredXSpan()
{
float result = 0;

float lineSpan = firstLineIndent;


for (int n = layoutPool.getViewCount(), i = 0; i < n; i++)
{
View v = layoutPool.getView(i);

lineSpan += v.getPreferredSpan(X_AXIS);

if (v.getBreakWeight(X_AXIS, 0, Integer.MAX_VALUE) >= ForcedBreakWeight)
{
result = Math.max(result, lineSpan);

lineSpan = otherLinesIndent;
}
}

result = Math.max(result, lineSpan);

return result;
}


public float poolMinimumXSpan()
{
float result = 0;

boolean lineHasView = false;
float lineSpan = firstLineIndent;

for (int n = layoutPool.getViewCount(), i = 0; i < n; i++)
{
View v = layoutPool.getView(i);


if (v.getBreakWeight(X_AXIS, 0, Integer.MAX_VALUE) <= BadBreakWeight)
{
lineHasView = true;
lineSpan += v.getPreferredSpan(X_AXIS);
}
else
{
if (lineHasView)
{
result = Math.max(lineSpan, result);

lineHasView = false;
lineSpan = otherLinesIndent;
}
else
// here would have to add the minimum width of the
// fragments of the view
;
}
}

result = Math.max(result, lineSpan);

return result;
}





Christian
.