Scala example source code file (GridPanel.scala)

This example Scala source code file (GridPanel.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

adapt, gridpanel, gridpanel, int, int, panel, panel, supermixin, supermixin

The Scala GridPanel.scala source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2007-2011, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */



package scala.swing

object GridPanel {
  val Adapt = 0
}

/**
 * A panel that lays out its contents in a uniform grid. 
 * 
 * @see java.awt.GridLayout
 */
class GridPanel(rows0: Int, cols0: Int) extends Panel with SequentialContainer.Wrapper {
  override lazy val peer = 
    new javax.swing.JPanel(new java.awt.GridLayout(rows0, cols0)) with SuperMixin
  
  /*type Constraints = (Int, Int)
    
  protected def constraintsFor(comp: Component) = {
    assert(peer.getComponentOrientation.isHorizontal)
    val idx = contents.indexOf(comp)
    val (r, c) = (((idx-1)/columns)+1, ((idx-1)%columns)+1)
    if (peer.getComponentOrientation.isLeftToRight) (r, c)
    else (r, columns-c+1)
  }
  
  protected def add(c: Component, l: Constraints) { peer.add(c.peer, (l._1-1)*columns+l._2) }
  protected def areValid(c: Constraints): (Boolean, String) = 
    ((c._1 > 0 && c._2 > 0), "Grid coordinates (row,col) must be >= 1 but where " + c)*/
  
  private def layoutManager = peer.getLayout.asInstanceOf[java.awt.GridLayout]
  
  def rows: Int = layoutManager.getRows
  def rows_=(n: Int) { layoutManager.setRows(n) }
  def columns: Int = layoutManager.getColumns
  def columns_=(n: Int) { layoutManager.setColumns(n) }
  
  def vGap: Int = layoutManager.getVgap
  def vGap_=(n: Int) { layoutManager.setVgap(n) }
  def hGap: Int = layoutManager.getHgap
  def hGap_=(n: Int) { layoutManager.setHgap(n) }
}