Hi Jules,
It looks like that the default TextLayout implementation do not handle maxHeight
Any idea what would be the best way to implement this ?
Thanks,
Looks like that it doesn't handle word wrapping either.
Some try regarding maximum height though.
We definitly needs a better solution for tex tLayout in general in Juce.
void createLayout (const AttributedString& text, TextLayout& layout)
{
tokens.ensureStorageAllocated (64);
layout.ensureStorageAllocated (totalLines);
addTextRuns (text);
layoutRuns (layout.getWidth());
int charPosition = 0;
int lineStartPosition = 0;
int runStartPosition = 0;
ScopedPointer<TextLayout::Line> currentLine;
ScopedPointer<TextLayout::Run> currentRun;
bool needToSetLineOrigin = true;
for (int i = 0; i < tokens.size(); ++i)
{
const Token& t = *tokens.getUnchecked (i);
Array<int> newGlyphs;
Array<float> xOffsets;
t.font.getGlyphPositions (getTrimmedEndIfNotAllWhitespace (t.text), newGlyphs, xOffsets);
if (currentRun == nullptr) currentRun = new TextLayout::Run();
if (currentLine == nullptr) currentLine = new TextLayout::Line();
if (newGlyphs.size() > 0)
{
if (Rectangle<float>(0.f, 0.f, layout.getWidth(), layout.getHeight()).contains(t.area))
{
currentRun->glyphs.ensureStorageAllocated (currentRun->glyphs.size() + newGlyphs.size());
const Point<float> tokenOrigin (t.area.getPosition().translated (0, t.font.getAscent()));
if (needToSetLineOrigin)
{
needToSetLineOrigin = false;
currentLine->lineOrigin = tokenOrigin;
}
const Point<float> glyphOffset (tokenOrigin - currentLine->lineOrigin);
for (int j = 0; j < newGlyphs.size(); ++j)
{
const float x = xOffsets.getUnchecked (j);
currentRun->glyphs.add (TextLayout::Glyph (newGlyphs.getUnchecked(j),
glyphOffset.translated (x, 0),
xOffsets.getUnchecked (j + 1) - x));
}
}
charPosition += newGlyphs.size();
}
if (t.isWhitespace || t.isNewLine)
++charPosition;
const Token* const nextToken = tokens [i + 1];
if (nextToken == nullptr) // this is the last token
{
addRun (*currentLine, currentRun.release(), t, runStartPosition, charPosition);
currentLine->stringRange = Range<int> (lineStartPosition, charPosition);
if (! needToSetLineOrigin)
layout.addLine (currentLine.release());
needToSetLineOrigin = true;
}
else if (Rectangle<float>(0.f, 0.f, layout.getWidth(), layout.getHeight()).contains(nextToken->area))
{
if (t.font != nextToken->font || t.colour != nextToken->colour)
{
addRun (*currentLine, currentRun.release(), t, runStartPosition, charPosition);
runStartPosition = charPosition;
}
if (t.line != nextToken->line)
{
if (currentRun == nullptr)
currentRun = new TextLayout::Run();
addRun (*currentLine, currentRun.release(), t, runStartPosition, charPosition);
currentLine->stringRange = Range<int> (lineStartPosition, charPosition);
if (! needToSetLineOrigin)
layout.addLine (currentLine.release());
runStartPosition = charPosition;
lineStartPosition = charPosition;
needToSetLineOrigin = true;
}
}
}
if ((text.getJustification().getFlags() & (Justification::right | Justification::horizontallyCentred)) != 0)
{
const float totalW = layout.getWidth();
const bool isCentred = (text.getJustification().getFlags() & Justification::horizontallyCentred) != 0;
for (int i = 0; i < layout.getNumLines(); ++i)
{
float dx = totalW - layout.getLine(i).getLineBoundsX().getLength();
if (isCentred)
dx /= 2.0f;
layout.getLine(i).lineOrigin.x += dx;
}
}
}
bump :)