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-rw-r--r--java/gjt/ImageButtonController.java79
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diff --git a/java/gjt/ImageButtonController.java b/java/gjt/ImageButtonController.java
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-package gjt;
-import java.awt.Event;
-
-/**
- * A controller for an ImageButton, this abstract class
- * establishes the association between itself and an ImageButton
- * and delivers events to its ImageButton.<p>
- *
- * ImageButtonControllers must be constructed with an
- * ImageButton; the ImageButton's controller gets set by
- * ImageButtonController's constructor.<p>
- *
- * The ImageButton passed into the constructor must not be null;
- * this is enforced by an assertion.<p>
- *
- * Methods defined in the MouseController interface are left
- * for subclasses to implement. ImageButtonController defines
- * mouseMove(), mouseEnter() and mouseExit() as no-ops, so
- * that extensions of ImageButtonController only have to
- * implement mouseDown(), mouseUp() and mouseDrag(). Note
- * that extensions are still free to override mouseMove(),
- * mouseEnter() and mouseExit() if desired.<p>
- *
- * Subclasses should also call the protected XXXButton(Event)
- * methods below, where XXX is either arm, disarm, activate, or
- * deactivate as appropriate. SpringyImageButtonController is
- * a good example of this (so is StickyImageButtonController,
- * but it is more complicated than it's springy sibling).<p>
- *
- * @version 1.0, Apr 1 1996
- * @author David Geary
- * @see MouseController
- * @see ImageButton
- * @see ImageButtonEvent
- * @see SpringyImageButtonController
- * @see StickyImageButtonController
- * @see gjt.test.ImageButtonTest
- */
-public abstract class ImageButtonController
- implements MouseController {
- private ImageButton button;
-
- ImageButtonController(ImageButton button) {
- Assert.notNull(button);
- this.button = button;
- button.setController(this);
- }
- public ImageButton getButton() {
- return button;
- }
- public boolean mouseEnter(Event event, int x, int y) {
- return false;
- }
- public boolean mouseExit (Event event, int x, int y) {
- return false;
- }
- public boolean mouseMove (Event event, int x, int y) {
- return false;
- }
-
- protected void armButton(Event event) {
- button.deliverEvent(
- new ImageButtonEvent(button,
- event,
- ImageButtonEvent.ARM));
- }
- protected void disarmButton(Event event) {
- button.deliverEvent(
- new ImageButtonEvent(button,
- event,
- ImageButtonEvent.DISARM));
- }
- protected void activateButton(Event event) {
- button.deliverEvent(
- new ImageButtonEvent(button,
- event,
- ImageButtonEvent.ACTIVATE));
- }
-}