Class: SemesterTableModel

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

Overview

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Instance Method Summary collapse

Constructor Details

#initialize(semesters, parent) ⇒ SemesterTableModel

Returns a new instance of SemesterTableModel.



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

def initialize(semesters, parent)
  super()
  @semesters = semesters
  @view = parent
  @CourseComboBoxDelegate = CourseComboBoxDelegate.new(self)
  @view.setItemDelegateForColumn(1, @CourseComboBoxDelegate)
end

Instance Method Details

#columnCount(parent) ⇒ Object 



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# File 'lib/tmis/interface/models/semester_table_model.rb', line 25

def columnCount(parent)
  2
end

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



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# File 'lib/tmis/interface/models/semester_table_model.rb', line 29

def data(index, role = Qt::DisplayRole)
  semester = @semesters[index.row]
  default = Qt::Variant.new
  case role
  when Qt::DisplayRole
    case index.column
    when 0
      semester.title
    when 1
      semester.course.try(:number)
    else
      raise "invalid column #{index.column}"
    end.try(:to_v) || default
  when Qt::EditRole
    case index.column
    when 0
      semester.title
    when 1
      semester.course_id
    else
      raise "invalid column #{index.column}"
    end.try(:to_v) || default
  else
    default
  end
end

#flags(index) ⇒ Object 



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# File 'lib/tmis/interface/models/semester_table_model.rb', line 68

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

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



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

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 Курс)[section]
      else
        ''
      end
  Qt::Variant.new(v)
end

#insert_new ⇒ Object 



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# File 'lib/tmis/interface/models/semester_table_model.rb', line 92

def insert_new
  @semesters.prepend(Semester.new)
  emit layoutChanged()
end

#refresh ⇒ Object 



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# File 'lib/tmis/interface/models/semester_table_model.rb', line 15

def refresh
  @semesters = Semester.all
  @CourseComboBoxDelegate.setup
  emit layoutChanged()
end

#remove_current ⇒ Object 



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# File 'lib/tmis/interface/models/semester_table_model.rb', line 97

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

#rowCount(parent) ⇒ Object 



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# File 'lib/tmis/interface/models/semester_table_model.rb', line 21

def rowCount(parent)
  @semesters.size
end

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



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# File 'lib/tmis/interface/models/semester_table_model.rb', line 72

def setData(index, variant, role = Qt::EditRole)
  if index.valid? and role == Qt::EditRole
    semester = @semesters[index.row]
    case index.column
    when 0
      semester.title = variant.toString.force_encoding('UTF-8')
    when 1
      semester.course_id = variant.toInt
    else
      raise "invalid column #{index.column}"
    end
    semester.save
    p semester
    emit dataChanged(index, index)
    true
  else
    false
  end
end