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/* Title: Tools/jEdit/src/pretty_tooltip.scala
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Author: Makarius
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Enhanced tooltip window based on Pretty_Text_Area.
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*/
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package isabelle.jedit
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import isabelle._
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import java.awt.{Color, Point, BorderLayout}
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import java.awt.event.{WindowEvent, WindowAdapter}
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import javax.swing.{SwingUtilities, JWindow, JPanel}
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import javax.swing.border.LineBorder
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import org.gjt.sp.jedit.View
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import org.gjt.sp.jedit.textarea.TextArea
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class Pretty_Tooltip(
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view: View,
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text_area: TextArea,
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rendering: Isabelle_Rendering,
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x: Int, y: Int, body: XML.Body) extends JWindow(view)
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{
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private val painter = text_area.getPainter
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private val fm = painter.getFontMetrics
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private val point = {
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val bounds = painter.getBounds()
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val point = new Point(bounds.x + x, bounds.y + fm.getHeight + y)
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SwingUtilities.convertPointToScreen(point, painter)
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point
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}
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val pretty_text_area = new Pretty_Text_Area(view)
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pretty_text_area.resize(
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Isabelle.font_family(), Isabelle.font_size("jedit_tooltip_font_scale").round)
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pretty_text_area.update(rendering.snapshot, body)
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addWindowFocusListener(new WindowAdapter {
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override def windowLostFocus(e: WindowEvent) { dispose() }
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})
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setContentPane(new JPanel(new BorderLayout) {
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override def getFocusTraversalKeysEnabled(): Boolean = false
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})
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getRootPane.setBorder(new LineBorder(Color.BLACK))
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add(pretty_text_area)
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setSize(fm.charWidth(Pretty.spc) * Isabelle.options.int("jedit_tooltip_margin"), 100)
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setLocation(point.x, point.y)
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setVisible(true)
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}
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