/
EclipseSettings.scala
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/
EclipseSettings.scala
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package scala.tools.eclipse.properties
import scala.tools.nsc.Settings
import scala.tools.eclipse.{SettingConverterUtil }
import org.eclipse.swt.widgets.{ Button, Combo, Composite, Control, Event, Group, Label, Listener, Text }
import org.eclipse.swt.layout.{ GridData, GridLayout }
import org.eclipse.swt.SWT
import org.eclipse.swt.events.{ ModifyEvent, ModifyListener, SelectionAdapter, SelectionEvent, SelectionListener }
import org.eclipse.jface.preference.IPreferenceStore
trait EclipseSettings {
self: ScalaPluginPreferencePage =>
object EclipseSetting {
/** Function to map a Scala compiler setting to an Eclipse plugin setting */
def apply(setting : Settings#Setting) : EclipseSetting = setting match {
case setting : Settings#BooleanSetting => new CheckBoxSetting(setting)
case setting : Settings#IntSetting => new IntegerSetting(setting)
case setting : Settings#StringSetting => new StringSetting(setting)
// case setting : Settings#PhasesSetting => new StringSetting(setting) // !!!
case setting : Settings#MultiStringSetting => new MultiStringSetting(setting)
case setting : Settings#ChoiceSetting => new ComboSetting(setting)
}
import scala.tools.eclipse.util.IDESettings
case class EclipseBox(name: String, eSettings: List[EclipseSetting])
def toEclipseBox(userBox: IDESettings.Box, preferenceStore: IPreferenceStore): EclipseBox = {
val eSettings = userBox.userSettings.map { s:Settings#Setting =>
val name = SettingConverterUtil.convertNameToProperty(s.name)
s.tryToSetFromPropertyValue(preferenceStore.getString(name))
EclipseSetting(s) }
EclipseBox(userBox.name, eSettings)
}
}
private object SelectionListenerSing extends SelectionAdapter {
override def widgetSelected(e : SelectionEvent): Unit = updateApply
}
private object ModifyListenerSing extends ModifyListener {
def modifyText(e : ModifyEvent) = updateApply
}
/**
* Represents a setting that may by changed within Eclipse.
*/
abstract class EclipseSetting(val setting : Settings#Setting) {
def control : Control
val data = new GridData()
data.horizontalAlignment = GridData.FILL
def setEnabled(value:Boolean) : Unit = {
control.setEnabled(value)
if(!value) {
reset
}
}
def addTo(page : Composite) {
val label = new Label(page, SWT.NONE)
label.setText(SettingConverterUtil.convertNameToProperty(setting.name))
createControl(page)
val help = new Label(page, SWT.WRAP)
help.setText(setting.helpDescription)
}
/** Create the control on the page */
def createControl(page : Composite)
def isChanged : Boolean
/** Reset the control to a default value */
def reset()
/** Apply the value of the control */
def apply()
}
/**
* Boolean setting controlled by a checkbox.
*/
class CheckBoxSetting(setting : Settings#BooleanSetting)
extends EclipseSetting(setting) {
var control : Button = _
def createControl(page : Composite) {
control = new Button(page, SWT.CHECK)
control.setSelection(setting.value)
control.addSelectionListener(
SelectionListenerSing
)
}
def isChanged = !setting.value.equals(control.getSelection)
def reset() { control.setSelection(false) }
def apply() { setting.value = control.getSelection }
}
/**
* Integer setting editable using a text field.
*/
class IntegerSetting(setting : Settings#IntSetting)
extends EclipseSetting(setting) {
var control : Text = _
def createControl(page : Composite) {
control = new Text(page, SWT.SINGLE | SWT.BORDER)
control.setLayoutData(data)
control.setText(setting.value.toString)
control.addListener (SWT.Verify, new Listener {
def handleEvent(e : Event) { if(e.text.exists(c => c < '0' || c > '9')) e.doit = false }
})
control.addModifyListener(ModifyListenerSing)
}
def isChanged = setting.value.toString != control.getText
def reset() { control.setText(setting.default.toString) }
def apply() {
setting.value = try {
control.getText.toInt
} catch {
case _ : NumberFormatException => setting.default
}
}
}
/**
* String setting editable using a text field.
*/
class StringSetting(setting : Settings#StringSetting)
extends EclipseSetting(setting) {
var control : Text = _
def createControl(page : Composite) {
control = new Text(page, SWT.SINGLE | SWT.BORDER)
control.setText(setting.value)
control.setLayoutData(data)
control.addModifyListener(ModifyListenerSing)
}
def isChanged = setting.value != control.getText
def reset() { control.setText(setting.default) }
def apply() { setting.value = control.getText }
}
/**
* Multi string setting editable using a text field.
*/
class MultiStringSetting(setting : Settings#MultiStringSetting)
extends EclipseSetting(setting) {
var control : Text = _
def createControl(page : Composite) {
control = new Text(page, SWT.SINGLE | SWT.BORDER)
control.setLayoutData(data)
control.setText(setting.value.mkString(" "))
control.addModifyListener(ModifyListenerSing)
}
def isChanged = setting.value != control.getText
def reset() { control.setText("") }
def apply() { setting.value = control.getText.trim.split(" +").toList }
}
/**
* Text setting selectable using a drop down combo box.
*/
class ComboSetting(setting : Settings#ChoiceSetting)
extends EclipseSetting(setting) {
var control : Combo = _
def createControl(page : Composite) {
control = new Combo(page, SWT.DROP_DOWN | SWT.READ_ONLY)
control.setLayoutData(data)
setting.choices.foreach(control.add)
control.setText(setting.value)
control.addSelectionListener(SelectionListenerSing)
}
def isChanged = setting.value != control.getText
def reset() { control.setText(setting.default) }
def apply() { setting.value = control.getText }
}
}