CustomUpdaterPosition.cpp

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  CustomUpdaterPosition.cpp
 
  Dominic Mazzoni
  Michael Papadopoulos split from Ruler.cpp
 
**********************************************************************/
 
 
#include "CustomUpdaterPosition.h"
 
const CustomUpdaterPosition &CustomUpdaterPosition::Instance()
{
   static CustomUpdaterPosition instance;
   return instance;
}
 
bool CustomUpdaterPosition::TickCustom(wxDC& dc, int labelIdx, wxFont font,
   // in/out:
   TickOutputs outputs,
   const RulerStruct& context) const
{
   const int mLeft = context.mLeft;
   const int mTop = context.mTop;
   const int mOrientation = context.mOrientation;
 
   const RulerStruct::Fonts& mFonts = *context.mpFonts;
   // legacy behavior
   const int spacing = (mOrientation == wxHORIZONTAL) ? 6 : 2;
   const bool mFlip = context.mFlip;
   const TranslatableString mUnits = context.mUnits;
 
   // FIXME: We don't draw a tick if of end of our label arrays
   // But we shouldn't have an array of labels.
   if (labelIdx >= outputs.labels.size())
      return false;
 
   Label lab;
 
   lab.value = 0.0;
   lab.pos = outputs.labels[labelIdx].pos;
   // Custom is flexible with text format
   // We can assume they use the right format, but still append the right units.
   lab.text = outputs.labels[labelIdx].text;
   lab.units = mUnits;
 
   auto result = MakeTick(
      lab,
      dc, font,
      outputs.bits,
      mLeft, mTop, spacing, mFonts.lead,
      mFlip,
      mOrientation);
 
   if (!result.second.text)
      // Always a non-empty optional
      result.second.text = { TranslatableString{} };
 
   auto& rect = result.first;
   outputs.box.Union(rect);
   outputs.labels[labelIdx] = (result.second);
   return !rect.IsEmpty();
}
 
CustomUpdaterPosition::~CustomUpdaterPosition() = default;