// Returns the number of lines
int CScrolledTextBox::Wrap(const wxString& text, int widthMax, int *lineHeight) {
const wxChar *lastSpace = NULL;
wxString line;
int height = 0, numLines = 0;
const wxChar *lineStart = text.c_str();
for ( const wxChar *p = lineStart; ; p++ ) {
if ( IsStartOfNewLine() ) {
m_text += _T('\n');
lastSpace = NULL;
line.clear();
lineStart = p;
}
if ( *p == _T('\n') || *p == _T('\0') ) {
line.Trim();
OnOutputLine(line);
m_eol = true;
++numLines;
if ( *p == _T('\0') )
break;
} else { // not EOL
if ( *p == _T(' ') ) {
lastSpace = p;
}
line += *p;
if ( widthMax >= 0 && lastSpace ) {
int width;
GetTextExtent(line, &width, &height);
if ( width > widthMax ) {
// remove the last word from this line
line.erase(lastSpace - lineStart, p + 1 - lineStart);
line.Trim();
OnOutputLine(line);
m_eol = true;
++numLines;
// go back to the last word of this line which we didn't
// output yet
p = lastSpace;
}
}
//else: no wrapping at all or impossible to wrap
}
}
*lineHeight = height;
return numLines;
}
void pxTextWrapperBase::DoOutputLine(const wxString& line)
{
OnOutputLine(line);
m_linecount++;
m_eol = true;
}
// call OnOutputLine() and set m_eol to true
void DoOutputLine(const wxString& line)
{
OnOutputLine(line);
m_eol = true;
}