/* Title: Tools/Graphview/src/visualizer.scala
Author: Markus Kaiser, TU Muenchen
Graph visualization interface.
*/
package isabelle.graphview
import isabelle._
import java.awt.{Font, Color => JColor, Shape}
import java.awt.{RenderingHints, Graphics2D}
import javax.swing.JComponent
class Visualizer(val model: Model)
{
object Coordinates
{
private var nodes = Map.empty[String, (Double, Double)]
private var dummies = Map.empty[(String, String), List[(Double, Double)]]
def apply(k: String): (Double, Double) =
nodes.get(k) match {
case Some(c) => c
case None => (0, 0)
}
def apply(e: (String, String)): List[(Double, Double)] =
dummies.get(e) match {
case Some(ds) => ds
case None => Nil
}
def reposition(k: String, to: (Double, Double))
{
nodes += (k -> to)
}
def reposition(d: ((String, String), Int), to: (Double, Double))
{
val (e, index) = d
dummies.get(e) match {
case None =>
case Some(ds) =>
dummies += (e ->
(ds.zipWithIndex :\ List[(Double, Double)]()) {
case ((t, i), n) => if (index == i) to :: n else t :: n
}
)
}
}
def translate(k: String, by: (Double, Double))
{
val ((x, y), (dx, dy)) = (Coordinates(k), by)
reposition(k, (x + dx, y + dy))
}
def translate(d: ((String, String), Int), by: (Double, Double))
{
val ((e, i),(dx, dy)) = (d, by)
val (x, y) = apply(e)(i)
reposition(d, (x + dx, y + dy))
}
def layout()
{
val (l, d) = Layout_Pendulum(model.current)
nodes = l
dummies = d
}
def bounds(): (Double, Double, Double, Double) =
model.visible_nodes().toList match {
case Nil => (0, 0, 0, 0)
case nodes =>
val X: (String => Double) = (n => apply(n)._1)
val Y: (String => Double) = (n => apply(n)._2)
(X(nodes.minBy(X)), Y(nodes.minBy(Y)),
X(nodes.maxBy(X)), Y(nodes.maxBy(Y)))
}
}
private val visualizer = this
object Drawer
{
def apply(g: Graphics2D, n: Option[String])
{
n match {
case None =>
case Some(_) => Shapes.Growing_Node.paint(g, visualizer, n)
}
}
def apply(g: Graphics2D, e: (String, String), head: Boolean, dummies: Boolean)
{
Shapes.Cardinal_Spline_Edge.paint(g, visualizer, e, head, dummies)
}
def paint_all_visible(g: Graphics2D, dummies: Boolean)
{
g.setFont(font)
g.setRenderingHints(rendering_hints)
model.visible_edges().foreach(e => {
apply(g, e, Parameters.arrow_heads, dummies)
})
model.visible_nodes().foreach(l => {
apply(g, Some(l))
})
}
def shape(g: Graphics2D, n: Option[String]): Shape =
n match {
case None => Shapes.Dummy.shape(g, visualizer, None)
case Some(_) => Shapes.Growing_Node.shape(g, visualizer, n)
}
}
object Selection
{
private var selected: List[String] = Nil
def apply() = selected
def apply(s: String) = selected.contains(s)
def add(s: String) { selected = s :: selected }
def set(ss: List[String]) { selected = ss }
def clear() { selected = Nil }
}
object Color
{
def apply(l: Option[String]): (JColor, JColor, JColor) =
l match {
case None => (JColor.GRAY, JColor.WHITE, JColor.BLACK)
case Some(c) => {
if (Selection(c))
(JColor.BLUE, JColor.GREEN, JColor.BLACK)
else
(JColor.BLACK, model.colors.getOrElse(c, JColor.WHITE), JColor.BLACK)
}
}
def apply(e: (String, String)): JColor = JColor.BLACK
}
object Caption
{
def apply(key: String) =
if (Parameters.long_names) key
else model.complete.get_node(key).name
}
val font = new Font(Parameters.font_family, Font.BOLD, Parameters.font_size)
val rendering_hints =
new RenderingHints(
RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON)
}