Class: SubjectTableModel

Inherits:
Qt::AbstractTableModel
  • Object
show all
Defined in:
lib/tmis/interface/models/subject_table_model.rb

Overview

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Instance Method Summary collapse

Constructor Details

#initialize(subjects, parent) ⇒ SubjectTableModel

Returns a new instance of SubjectTableModel.



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# File 'lib/tmis/interface/models/subject_table_model.rb', line 7

def initialize(subjects, parent)
  super()
  @subjects = subjects
  @view = parent
end

Instance Method Details

#columnCount(parent) ⇒ Object 



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# File 'lib/tmis/interface/models/subject_table_model.rb', line 22

def columnCount(parent)
  1
end

#data(index, role = Qt::DisplayRole) ⇒ Object 



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# File 'lib/tmis/interface/models/subject_table_model.rb', line 26

def data(index, role = Qt::DisplayRole)
  invalid = Qt::Variant.new
  return invalid unless role == Qt::DisplayRole or role == Qt::EditRole
  subject = @subjects[index.row]
  return invalid if subject.nil?
  v = case index.column
      when 0
        subject.title
      else
        raise "invalid column #{index.column}"
      end || ''
  Qt::Variant.new(v)
end

#flags(index) ⇒ Object 



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# File 'lib/tmis/interface/models/subject_table_model.rb', line 52

def flags(index)
  Qt::ItemIsEditable | super(index)
end

#headerData(section, orientation, role = Qt::DisplayRole) ⇒ Object 



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# File 'lib/tmis/interface/models/subject_table_model.rb', line 40

def headerData(section, orientation, role = Qt::DisplayRole)
  invalid = Qt::Variant.new
  return invalid unless role == Qt::DisplayRole
  v = case orientation
      when Qt::Horizontal
        %w(Название)[section]
      else
        ''
      end
  Qt::Variant.new(v)
end

#insert_new ⇒ Object 



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# File 'lib/tmis/interface/models/subject_table_model.rb', line 73

def insert_new
  @subjects.prepend(Subject.new)
  emit layoutChanged()
end

#refresh ⇒ Object 



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# File 'lib/tmis/interface/models/subject_table_model.rb', line 13

def refresh
  @subjects = Subject.all
  emit layoutChanged()
end

#remove_current ⇒ Object 



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# File 'lib/tmis/interface/models/subject_table_model.rb', line 78

def remove_current
  if @view.currentIndex.valid?
    subject = @subjects[@view.currentIndex.row]
    unless subject.stub
      subject.try(:destroy)
      @subjects.delete_at(@view.currentIndex.row)
      emit layoutChanged()
      @view.currentIndex = createIndex(-1, -1)
    end
  end
end

#rowCount(parent) ⇒ Object 



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# File 'lib/tmis/interface/models/subject_table_model.rb', line 18

def rowCount(parent)
  @subjects.size
end

#setData(index, variant, role = Qt::EditRole) ⇒ Object 



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# File 'lib/tmis/interface/models/subject_table_model.rb', line 56

def setData(index, variant, role = Qt::EditRole)
  if index.valid? and role == Qt::EditRole
    subject = @subjects[index.row]
    case index.column
    when 0
      subject.title = variant.toString.force_encoding('UTF-8')
    else
      raise "invalid column #{index.column}"
    end
    subject.save
    emit dataChanged(index, index)
    true
  else
    false
  end
end