int TypewriterText::GetWidthOfNextWord(char* String, int CurrentPos)
{
int Len = 0;
Font* Ft = GetFontBySizeIndex(mFontNumber);
if(!Ft)
return 0;
for(;;CurrentPos++)
{
Len += Ft->GetCharWidth(String[CurrentPos]);
if(String[CurrentPos] == '\n' || String[CurrentPos] == ' ' || String[CurrentPos] == '\0')
{
break;
}
}
return Len;
}
void TextSegment::Wrap(TextArea *theTextArea, TextLine *theLine)
{
mLine = NULL; // set mLine to NULL then reset it to aLine on the first line to which we add a segment piece
int aCurPos = 0;
GUIString &aStr = mText;
Font *aFM = mFont;
int aTextBoxWidth = theTextArea->GetScrollArea().Width();
TextLine *aLine = theLine;
while(aCurPos < aStr.length())
{
int aWidth = aLine->mWidth;
int aBreakWidth = aLine->mWidth;
int aStartPos = aCurPos;
int aBreakPos = aStartPos-1;
while(aCurPos < aStr.length())
{
int aChar = aStr.at(aCurPos);
aWidth += aFM->GetCharWidth(aChar);
if(aChar==' ')
{
aBreakPos = aCurPos;
aBreakWidth = aWidth;
}
if(aWidth > aTextBoxWidth)
break;
aCurPos++;
}
bool forceBreak = false;
if(aBreakPos < aStartPos)
{
if(aWidth < aTextBoxWidth)
aBreakPos = aStr.length();
else if(aLine->mSegmentList.empty()) // force the break in the middle of the word if we're at the beginning of the line
{
aBreakPos = aCurPos;
aBreakWidth = aTextBoxWidth;
if(aBreakPos==aStartPos) // need at least one character per line
aBreakPos++;
forceBreak = true;
}
else // otherwise try again on new line
aCurPos = 0;
}
if(aBreakPos >= aStartPos)
{
if(aBreakPos!=aStartPos)
{
theTextArea->AddSeg(new TextSegmentPiece(this, aStartPos, aBreakPos, aBreakWidth/*aTextBoxWidth-aLine->mWidth*/));
if(mLine==NULL)
mLine = aLine;
}
aCurPos = aBreakPos;
if(!forceBreak) // Skip the space where we wrapped
aCurPos++;
}
if(aCurPos>=aStr.length())
break;
aLine = theTextArea->AddLine(mHeight, mAscent);
if(theTextArea->mLineAlign==HorzAlign_Left)
aLine->mWidth = theTextArea->mWrapIndentSize;
aWidth = aFM->GetStringWidth(aStr, aCurPos, aStr.length()-aCurPos);
if(aWidth <= aTextBoxWidth - aLine->mWidth)
{
theTextArea->AddSeg(new TextSegmentPiece(this, aCurPos, aStr.length(), aWidth));
if(mLine==NULL)
mLine = aLine;
break;
}
}
}