multiline drawlabel

gistfile1.txt

//this works if you use label names with \n such as "Attack \n Rate"

void MySliderControl::DrawLabel(IGraphics& g)
{
  if (mLabelBounds.H() && mStyle.showLabel)
  {
    IBlend blend = mControl->GetBlend();
    std::string labelStr(mLabelStr.Get());
    std::string delimiter("\n");
    int numberOfLines = std::count(labelStr.begin(), labelStr.end(), '\n')+1;
    IRECT textRect;
    mControl->GetUI()->MeasureText(mStyle.labelText, mLabelStr.Get(), textRect);
    IRECT mLabelBoundsNew = mLabelBounds;
    while (labelStr.find(delimiter)!= std::string::npos)
    {
      std::size_t charPos = labelStr.find(delimiter);
      std::string test = labelStr.substr(0, charPos);
      g.DrawText(mStyle.labelText, (labelStr.substr(0, charPos)).c_str(), mLabelBoundsNew, &blend);
      labelStr = labelStr.substr(charPos+ delimiter.length(), labelStr.length() - charPos);
      mLabelBoundsNew = mLabelBoundsNew.GetVShifted(textRect.H());
    }
    g.DrawText(mStyle.labelText, labelStr.c_str(), mLabelBoundsNew, &blend);
  }
}

void MySliderControl::OnResize()
{
  SetTargetRECT(MakeRects(mRECT));

  if (mDirection == EDirection::Vertical)
    mTrackBounds = mWidgetBounds.GetPadded(-mHandleSize).GetMidHPadded(mTrackSize);
  else
    mTrackBounds = mWidgetBounds.GetPadded(-mHandleSize).GetMidVPadded(mTrackSize);

  SetDirty(false);
}

IRECT MySliderControl::MakeRects(const IRECT& parent, bool hasHandle)
{
  IRECT clickableArea = parent;

  if (!mLabelInWidget)
  {
    if (mStyle.showLabel && CStringHasContents(mLabelStr.Get()))
    {
      IRECT textRect;
      mControl->GetUI()->MeasureText(mStyle.labelText, mLabelStr.Get(), textRect);
      mLabelBounds = parent.GetFromTop(textRect.H()).GetCentredInside(textRect.W(), textRect.H());

      //multiply mLabelBounds height by number of lines
      std::string labelStr(mLabelStr.Get());
      int numberOfExtraLines = std::count(labelStr.begin(), labelStr.end(), '\n');
      mLabelBounds.B = mLabelBounds.B + (mLabelBounds.H() * numberOfExtraLines);
    }
    else
      mLabelBounds = IRECT();

    if (mLabelBounds.H())
      clickableArea = parent.GetReducedFromTop(mLabelBounds.H());
  }

  if (mStyle.showValue && !mValueInWidget)
  {
    IRECT textRect;

    if (CStringHasContents(mValueStr.Get()))
      mControl->GetUI()->MeasureText(mStyle.valueText, mValueStr.Get(), textRect);

    const float valueDisplayWidth = textRect.W() * mValueDisplayFrac;

    switch (mStyle.valueText.mVAlign)
    {
    case EVAlign::Middle:
      mValueBounds = clickableArea.GetMidVPadded(textRect.H() / 2.f).GetMidHPadded(valueDisplayWidth);
      mWidgetBounds = clickableArea.GetScaledAboutCentre(mStyle.widgetFrac);
      break;
    case EVAlign::Bottom:
    {
      mValueBounds = clickableArea.GetFromBottom(textRect.H()).GetMidHPadded(valueDisplayWidth);
      mWidgetBounds = clickableArea.GetReducedFromBottom(textRect.H()).GetScaledAboutCentre(mStyle.widgetFrac);
      break;
    }
    case EVAlign::Top:
      mValueBounds = clickableArea.GetFromTop(textRect.H()).GetMidHPadded(valueDisplayWidth);
      mWidgetBounds = clickableArea.GetReducedFromTop(textRect.H()).GetScaledAboutCentre(mStyle.widgetFrac);
      break;
    default:
      break;
    }
  }
  else
  {
    mWidgetBounds = clickableArea.GetScaledAboutCentre(mStyle.widgetFrac);
  }

  if (hasHandle)
    mWidgetBounds = GetAdjustedHandleBounds(clickableArea).GetScaledAboutCentre(mStyle.widgetFrac);

  if (mLabelInWidget)
    mLabelBounds = mWidgetBounds;

  if (mValueInWidget)
    mValueBounds = mWidgetBounds;

  return clickableArea;
}