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BitmapText: line wrap automatically

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This commit is contained in:
Chris Danford
2003-11-06 06:20:35 +00:00
parent 9856f490f1
commit c43360bbb1
4 changed files with 56 additions and 7 deletions
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stepmania/src/BitmapText.cpp
+53 -5
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@@ -230,7 +230,7 @@ void BitmapText::DrawChars()
/* sText is UTF-8. If not all of the characters in sText are available in the
* font, sAlternateText will be used instead. If there are unavailable characters
* in sAlternateText, too, just use sText. */
void BitmapText::SetText( CString sText, CString sAlternateText )
void BitmapText::SetText( CString sText, CString sAlternateText, int iWrapWidthPixels )
{
ASSERT( m_pFont );
@@ -239,13 +239,61 @@ void BitmapText::SetText( CString sText, CString sAlternateText )
if(m_szText == sText)
return;
m_szText = sText;
/* Break the string into lines. */
// Break the string into lines.
//
m_szTextLines.clear();
split(CStringToWstring(m_szText), L"\n", m_szTextLines, false);
if( iWrapWidthPixels == -1 )
{
split( CStringToWstring(sText), L"\n", m_szTextLines, false );
}
else
{
//
// Break sText into lines that don't exceed iWrapWidthPixels
// (if only one word fits on the line, it may be larger than iWrapWidthPixels ).
//
// TODO: Investigate whether this works in all languages
// TODO: Move this wrapping logic into Font
CStringArray asWords;
split( sText, " ", asWords );
CString sCurLine;
int iCurLineWidth = 0;
for( int i=0; i<asWords.size(); i++ )
{
CString sWord = asWords[i];
int iWidthWord = m_pFont->GetLineWidthInSourcePixels( CStringToWstring(sWord) );
if( sCurLine.empty() )
{
sCurLine = sWord;
iCurLineWidth = iWidthWord;
}
else
{
CString sToAdd = " " + sWord;
int iWidthToAdd = m_pFont->GetLineWidthInSourcePixels(L" ") + iWidthWord;
if( iCurLineWidth + iWidthToAdd <= iWrapWidthPixels ) // will fit on current line
{
sCurLine += sToAdd;
iCurLineWidth += iWidthToAdd;
}
else
{
m_szTextLines.push_back( CStringToWstring(sCurLine) );
sCurLine = sWord;
iCurLineWidth = iWidthWord;
}
}
}
m_szTextLines.push_back( CStringToWstring(sCurLine) );
}
BuildChars();
}