# Copyright (c) 2023 M.J.N. Corino, The Netherlands
#
# This software is released under the MIT license.

###
# wxRuby3 wxWidgets interface director
###

module WXRuby3

  class Director

    class DC < Director

      include Typemap::PointsList

      def setup
        super
        spec.items << 'wxFontMetrics'
        # it's not safe to track DC objects as these are often created on the stack in C++
        # before being passed to Ruby methods
        # as we cannot capture their deletion in anyway this would leave the tracked items
        # registered and reused when future stack allocated DC's happen to have the same address
        spec.gc_as_untracked
        spec.regard 'wxFontMetrics::height',
                    'wxFontMetrics::ascent',
                    'wxFontMetrics::descent',
                    'wxFontMetrics::internalLeading',
                    'wxFontMetrics::externalLeading',
                    'wxFontMetrics::averageWidth'
        spec.ignore [
          'wxDC::GetPartialTextExtents',
          'wxDC::DrawLines(const wxPointList *,wxCoord,wxCoord)',
          'wxDC::DrawPolygon(const wxPointList *,wxCoord,wxCoord,wxPolygonFillMode)',
          'wxDC::DrawSpline(const wxPointList *)',
          'wxDC::GetLogicalOrigin(wxCoord *,wxCoord *) const',
          'wxDC::GetHandle'
        ]
        # ignore Matrix Transformation methods until someone asks for them
        # TODO : possibly wrap at a later time
        spec.ignore 'wxDC::SetTransformMatrix',
                    'wxDC::GetTransformMatrix',
                    'wxDC::ResetTransformMatrix',
                    'wxDC::CanUseTransformMatrix'
        spec.disable_proxies
        spec.rename_for_ruby({
          'GetDimensions' => 'wxDC::GetSize(wxCoord *, wxCoord *) const',
          'GetDimensionsMM' => 'wxDC::GetSizeMM(wxCoord *, wxCoord *) const',
          'GetTextSize' => 'wxDC::GetTextExtent(const wxString &) const',
          'GetMultiLineTextSize' => 'wxDC::GetMultiLineTextExtent(const wxString &) const'
        })
        spec.add_extend_code 'wxDC', <<~__HEREDOC
          // Needs to return input parameter with list of lengths
          VALUE get_partial_text_extents(VALUE text) {
            wxString str = wxString(StringValuePtr(text), wxConvUTF8);
            wxArrayInt result = wxArrayInt();
            $self->GetPartialTextExtents(str, result);
            VALUE rb_result = rb_ary_new();
            for (size_t i = 0; i < result.GetCount(); i++)
              {
                rb_ary_push(rb_result, INT2NUM( result.Item(i) ) );
              }
            return rb_result;
          }
          __HEREDOC
        # for GetUserScale and GetLogicalScale
        spec.map_apply 'double * OUTPUT' => 'double *'
        spec.swig_import 'swig/classes/include/wxGDICommon.h'
      end
    end # class DC

  end # class Director

end # module WXRuby3