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/* Title: Pure/GUI/gui.scala
Author: Makarius
Basic GUI tools (for AWT/Swing).
*/
package isabelle
import java.awt.{Component, Container, Font, Image, Insets, KeyboardFocusManager, Window, Point,
Rectangle, Dimension, GraphicsEnvironment, MouseInfo, Toolkit}
import java.awt.font.{FontRenderContext, LineMetrics, TextAttribute, TransformAttribute}
import java.awt.geom.AffineTransform
import javax.swing.{ImageIcon, JButton, JDialog, JFrame, JLabel, JLayeredPane, JOptionPane,
JTextField, JWindow, LookAndFeel, UIManager, SwingUtilities}
import scala.swing.{ComboBox, ScrollPane, TextArea}
import scala.swing.event.SelectionChanged
object GUI
{
/* Swing look-and-feel */
def init_laf(): Unit = com.formdev.flatlaf.FlatLightLaf.install()
def current_laf(): String = UIManager.getLookAndFeel.getClass.getName()
def is_macos_laf(): Boolean =
Platform.is_macos && UIManager.getSystemLookAndFeelClassName() == current_laf()
class Look_And_Feel(laf: LookAndFeel) extends Isabelle_System.Service
{
def info: UIManager.LookAndFeelInfo =
new UIManager.LookAndFeelInfo(laf.getName, laf.getClass.getName)
}
lazy val look_and_feels: List[Look_And_Feel] =
Isabelle_System.make_services(classOf[Look_And_Feel])
def init_lafs()
{
val old_lafs =
Set(
"com.sun.java.swing.plaf.motif.MotifLookAndFeel",
"com.sun.java.swing.plaf.windows.WindowsClassicLookAndFeel")
val lafs =
UIManager.getInstalledLookAndFeels().toList
.filterNot(info => old_lafs(info.getClassName))
val more_lafs = look_and_feels.map(_.info)
UIManager.setInstalledLookAndFeels((more_lafs ::: lafs).toArray)
}
/* additional look-and-feels */
/* plain focus traversal, notably for text fields */
def plain_focus_traversal(component: Component)
{
val dummy_button = new JButton
def apply(id: Int): Unit =
component.setFocusTraversalKeys(id, dummy_button.getFocusTraversalKeys(id))
apply(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS)
apply(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS)
}
/* simple dialogs */
def scrollable_text(raw_txt: String, width: Int = 60, height: Int = 20, editable: Boolean = false)
: ScrollPane =
{
val txt = Output.clean_yxml(raw_txt)
val text = new TextArea(txt)
if (width > 0) text.columns = width
if (height > 0 && split_lines(txt).length > height) text.rows = height
text.editable = editable
new ScrollPane(text)
}
private def simple_dialog(kind: Int, default_title: String,
parent: Component, title: String, message: Iterable[Any])
{
GUI_Thread.now {
val java_message =
message.iterator.map({ case x: scala.swing.Component => x.peer case x => x }).
toArray.asInstanceOf[Array[AnyRef]]
JOptionPane.showMessageDialog(parent, java_message,
if (title == null) default_title else title, kind)
}
}
def dialog(parent: Component, title: String, message: Any*): Unit =
simple_dialog(JOptionPane.PLAIN_MESSAGE, null, parent, title, message)
def warning_dialog(parent: Component, title: String, message: Any*): Unit =
simple_dialog(JOptionPane.WARNING_MESSAGE, "Warning", parent, title, message)
def error_dialog(parent: Component, title: String, message: Any*): Unit =
simple_dialog(JOptionPane.ERROR_MESSAGE, "Error", parent, title, message)
def confirm_dialog(parent: Component, title: String, option_type: Int, message: Any*): Int =
GUI_Thread.now {
val java_message = message map { case x: scala.swing.Component => x.peer case x => x }
JOptionPane.showConfirmDialog(parent,
java_message.toArray.asInstanceOf[Array[AnyRef]], title,
option_type, JOptionPane.QUESTION_MESSAGE)
}
/* zoom box */
private val Zoom_Factor = "([0-9]+)%?".r
abstract class Zoom_Box extends ComboBox[String](
List("50%", "70%", "85%", "100%", "125%", "150%", "175%", "200%", "300%", "400%"))
{
def changed: Unit
def factor: Int = parse(selection.item)
private def parse(text: String): Int =
text match {
case Zoom_Factor(s) =>
val i = Integer.parseInt(s)
if (10 <= i && i < 1000) i else 100
case _ => 100
}
private def print(i: Int): String = i.toString + "%"
def set_item(i: Int) {
peer.getEditor match {
case null =>
case editor => editor.setItem(print(i))
}
}
makeEditable()(c => new ComboBox.BuiltInEditor(c)(text => print(parse(text)), x => x))
peer.getEditor.getEditorComponent match {
case text: JTextField => text.setColumns(4)
case _ =>
}
selection.index = 3
listenTo(selection)
reactions += { case SelectionChanged(_) => changed }
}
/* tooltip with multi-line support */
def tooltip_lines(text: String): String =
if (text == null || text == "") null
else "" + HTML.output(text) + ""
/* icon */
def isabelle_icon(): ImageIcon =
new ImageIcon(getClass.getClassLoader.getResource("isabelle/isabelle_transparent-32.gif"))
def isabelle_icons(): List[ImageIcon] =
for (icon <- List("isabelle/isabelle_transparent-32.gif", "isabelle/isabelle_transparent.gif"))
yield new ImageIcon(getClass.getClassLoader.getResource(icon))
def isabelle_image(): Image = isabelle_icon().getImage
/* location within multi-screen environment */
final case class Screen_Location(point: Point, bounds: Rectangle)
{
def relative(parent: Component, size: Dimension): Point =
{
val w = size.width
val h = size.height
val x0 = parent.getLocationOnScreen.x
val y0 = parent.getLocationOnScreen.y
val x1 = x0 + parent.getWidth - w
val y1 = y0 + parent.getHeight - h
val x2 = point.x min (bounds.x + bounds.width - w)
val y2 = point.y min (bounds.y + bounds.height - h)
val location = new Point((x2 min x1) max x0, (y2 min y1) max y0)
SwingUtilities.convertPointFromScreen(location, parent)
location
}
}
def screen_location(component: Component, point: Point): Screen_Location =
{
val screen_point = new Point(point.x, point.y)
if (component != null) SwingUtilities.convertPointToScreen(screen_point, component)
val ge = GraphicsEnvironment.getLocalGraphicsEnvironment
val screen_bounds =
(for {
device <- ge.getScreenDevices.iterator
config <- device.getConfigurations.iterator
bounds = config.getBounds
} yield bounds).find(_.contains(screen_point)) getOrElse ge.getMaximumWindowBounds
Screen_Location(screen_point, screen_bounds)
}
def mouse_location(): Screen_Location =
screen_location(null, MouseInfo.getPointerInfo.getLocation)
/* screen size */
sealed case class Screen_Size(bounds: Rectangle, insets: Insets)
{
def full_screen_bounds: Rectangle =
if (Platform.is_linux) {
// avoid menu bar and docking areas
new Rectangle(
bounds.x + insets.left,
bounds.y + insets.top,
bounds.width - insets.left - insets.right,
bounds.height - insets.top - insets.bottom)
}
else if (Platform.is_macos) {
// avoid menu bar, but ignore docking areas
new Rectangle(
bounds.x,
bounds.y + insets.top,
bounds.width,
bounds.height - insets.top)
}
else bounds
}
def screen_size(component: Component): Screen_Size =
{
val config = component.getGraphicsConfiguration
val bounds = config.getBounds
val insets = Toolkit.getDefaultToolkit.getScreenInsets(config)
Screen_Size(bounds, insets)
}
/* component hierachy */
def get_parent(component: Component): Option[Container] =
component.getParent match {
case null => None
case parent => Some(parent)
}
def ancestors(component: Component): Iterator[Container] = new Iterator[Container] {
private var next_elem = get_parent(component)
def hasNext(): Boolean = next_elem.isDefined
def next(): Container =
next_elem match {
case Some(parent) =>
next_elem = get_parent(parent)
parent
case None => Iterator.empty.next()
}
}
def parent_window(component: Component): Option[Window] =
ancestors(component).collectFirst({ case x: Window => x })
def layered_pane(component: Component): Option[JLayeredPane] =
parent_window(component) match {
case Some(w: JWindow) => Some(w.getLayeredPane)
case Some(w: JFrame) => Some(w.getLayeredPane)
case Some(w: JDialog) => Some(w.getLayeredPane)
case _ => None
}
def traverse_components(component: Component, apply: Component => Unit)
{
def traverse(comp: Component)
{
apply(comp)
comp match {
case cont: Container =>
for (i <- 0 until cont.getComponentCount)
traverse(cont.getComponent(i))
case _ =>
}
}
traverse(component)
}
/* font operations */
def copy_font(font: Font): Font =
if (font == null) null
else new Font(font.getFamily, font.getStyle, font.getSize)
def line_metrics(font: Font): LineMetrics =
font.getLineMetrics("", new FontRenderContext(null, false, false))
def transform_font(font: Font, transform: AffineTransform): Font =
font.deriveFont(java.util.Map.of(TextAttribute.TRANSFORM, new TransformAttribute(transform)))
def font(family: String = Isabelle_Fonts.sans, size: Int = 1, bold: Boolean = false): Font =
new Font(family, if (bold) Font.BOLD else Font.PLAIN, size)
def label_font(): Font = (new JLabel).getFont
/* Isabelle fonts */
def imitate_font(font: Font,
family: String = Isabelle_Fonts.sans,
scale: Double = 1.0): Font =
{
val font1 = new Font(family, font.getStyle, font.getSize)
val rel_size = line_metrics(font).getHeight.toDouble / line_metrics(font1).getHeight
new Font(family, font.getStyle, (scale * rel_size * font.getSize).toInt)
}
def imitate_font_css(font: Font,
family: String = Isabelle_Fonts.sans,
scale: Double = 1.0): String =
{
val font1 = new Font(family, font.getStyle, font.getSize)
val rel_size = line_metrics(font).getHeight.toDouble / line_metrics(font1).getHeight
"font-family: " + family + "; font-size: " + (scale * rel_size * 100).toInt + "%;"
}
def use_isabelle_fonts()
{
val default_font = label_font()
val ui = UIManager.getDefaults
for (prop <- List(
"ToggleButton.font",
"CheckBoxMenuItem.font",
"Label.font",
"Menu.font",
"MenuItem.font",
"PopupMenu.font",
"Table.font",
"TableHeader.font",
"TextArea.font",
"TextField.font",
"TextPane.font",
"ToolTip.font",
"Tree.font"))
{
val font = ui.get(prop) match { case font: Font => font case _ => default_font }
ui.put(prop, GUI.imitate_font(font))
}
}
}
class FlatLightLaf extends GUI.Look_And_Feel(new com.formdev.flatlaf.FlatLightLaf)
class FlatDarkLaf extends GUI.Look_And_Feel(new com.formdev.flatlaf.FlatDarkLaf)
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