/*
- * Sixth 3D engine. Copyright ©2012-2018, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 3 of the GNU Lesser General Public License
- * or later as published by the Free Software Foundation.
- *
+ * Sixth 3D engine. Author: Svjatoslav Agejenko.
+ * This project is released under Creative Commons Zero (CC0) license.
*/
-
package eu.svjatoslav.sixth.e3d.gui;
import eu.svjatoslav.sixth.e3d.gui.humaninput.MouseEvent;
public int frameNumber = 0;
/**
- * Mouse click. During rendering we can detect which item user clicked on.
+ * UI component that mouse is currently hovering over.
*/
- public MouseEvent mouseEvent;
+ private MouseInteractionController objectPreviouslyUnderMouseCursor;
+
+ public void prepareForNewFrameRendering(){
+ mouseEvent = null;
+ currentObjectUnderMouseCursor = null;
+ }
+
+ /**
+ * Mouse click event that needs to be processed.
+ */
+ private MouseEvent mouseEvent;
+
+ public void setMouseEvent(MouseEvent mouseEvent) {
+ this.mouseEvent = mouseEvent;
+ }
+
+ public MouseEvent getMouseEvent() {
+ return mouseEvent;
+ }
/**
* Item that user clicked on.
*/
- public MouseInteractionController objectUnderMouse;
+ private MouseInteractionController currentObjectUnderMouseCursor;
+
+ /**
+ * Called when given object was detected under mouse cursor, while processing {@link #mouseEvent}.
+ * Because objects are rendered back to front. The last method caller will set the top-most object, if
+ * there are multiple objects under mouse cursor.
+ */
+ public void setCurrentObjectUnderMouseCursor(MouseInteractionController currentObjectUnderMouseCursor) {
+ this.currentObjectUnderMouseCursor = currentObjectUnderMouseCursor;
+ }
public RenderingContext(final int width, final int height) {
this.width = width;
graphics.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
}
+ /**
+ * @return <code>true</code> if view repaint is needed.
+ */
+ public boolean handlePossibleComponentMouseEvent() {
+ if (mouseEvent == null) return false;
+
+ boolean viewRepaintNeeded = false;
+
+ if (objectPreviouslyUnderMouseCursor != currentObjectUnderMouseCursor) {
+ // Mouse cursor has just entered or left component.
+ viewRepaintNeeded = objectPreviouslyUnderMouseCursor != null && objectPreviouslyUnderMouseCursor.mouseExited();
+ viewRepaintNeeded |= currentObjectUnderMouseCursor != null && currentObjectUnderMouseCursor.mouseEntered();
+ objectPreviouslyUnderMouseCursor = currentObjectUnderMouseCursor;
+ }
+
+ if (mouseEvent.button != 0 && currentObjectUnderMouseCursor != null) {
+ // Mouse button was clicked on some component.
+ viewRepaintNeeded |= currentObjectUnderMouseCursor.mouseClicked(mouseEvent.button);
+ }
+
+ return viewRepaintNeeded;
+ }
+
}