X-Git-Url: http://www2.svjatoslav.eu/gitweb/?p=sixth-3d.git;a=blobdiff_plain;f=src%2Fmain%2Fjava%2Feu%2Fsvjatoslav%2Fsixth%2Fe3d%2Fgui%2FViewPanel.java;h=84d45293f38aa19095ee72b5d1ef99c9c18f23d4;hp=b23bf5b4a3e1c30528a92e18d93b004d19ccb837;hb=9dcd9d8a7d3bc16eb6fde3681cd32e02dc0707e9;hpb=70ee733b25c56bed539b89ff5507ae0af842d68a

diff --git a/src/main/java/eu/svjatoslav/sixth/e3d/gui/ViewPanel.java b/src/main/java/eu/svjatoslav/sixth/e3d/gui/ViewPanel.java
index b23bf5b..84d4529 100755
--- a/src/main/java/eu/svjatoslav/sixth/e3d/gui/ViewPanel.java
+++ b/src/main/java/eu/svjatoslav/sixth/e3d/gui/ViewPanel.java
@@ -9,18 +9,18 @@
 
 package eu.svjatoslav.sixth.e3d.gui;
 
+import eu.svjatoslav.sixth.e3d.gui.humaninput.HIDInputTracker;
 import eu.svjatoslav.sixth.e3d.gui.humaninput.KeyboardFocusStack;
 import eu.svjatoslav.sixth.e3d.gui.humaninput.MouseInteractionController;
-import eu.svjatoslav.sixth.e3d.gui.humaninput.HIDInputTracker;
 import eu.svjatoslav.sixth.e3d.renderer.raster.ShapeCollection;
 
 import javax.swing.*;
 import java.awt.*;
 import java.awt.event.ComponentEvent;
 import java.awt.event.ComponentListener;
-import java.util.ArrayList;
-import java.util.List;
+import java.util.Set;
 import java.util.Timer;
+import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * Java Swing GUI panel that contains canvas for 3D rendering.
@@ -29,10 +29,10 @@ public class ViewPanel extends JPanel implements ComponentListener {
     private static final long serialVersionUID = 1683277888885045387L;
     public Color backgroundColor = Color.BLACK;
     private final HIDInputTracker HIDInputTracker = new HIDInputTracker(this);
-    private final KeyboardFocusStack keyboardFocusStack = new KeyboardFocusStack(this);
+    private final KeyboardFocusStack keyboardFocusStack;
     private final Avatar avatar = new Avatar();
     private final ShapeCollection rootShapeCollection = new ShapeCollection();
-    private final List<ViewRenderListener> viewRenderListeners = new ArrayList<>();
+    private final Set<ViewRenderListener> viewRenderListeners = ConcurrentHashMap.newKeySet();
     /**
      * Last time this view was updated.
      */
@@ -58,6 +58,8 @@ public class ViewPanel extends JPanel implements ComponentListener {
         viewRenderListeners.add(avatar);
         viewRenderListeners.add(HIDInputTracker);
 
+        keyboardFocusStack = new KeyboardFocusStack(this);
+
         initializePanelLayout();
 
         setFrameRate(targetFPS);
@@ -125,27 +127,23 @@ public class ViewPanel extends JPanel implements ComponentListener {
     }
 
     private void handleDetectedComponentMouseEvents() {
-        if (renderingContext.clickedItem != null) {
-            if (renderingContext.mouseClick.button == 0) {
+        if (renderingContext.objectUnderMouse != null) {
+            if (renderingContext.mouseEvent.button == 0) {
                 // mouse over
                 if (currentMouseOverComponent == null) {
-                    currentMouseOverComponent = renderingContext.clickedItem;
-                    currentMouseOverComponent.mouseEntered();
-                    viewRepaintNeeded = true;
-                } else if (currentMouseOverComponent != renderingContext.clickedItem) {
-                    currentMouseOverComponent.mouseExited();
-                    currentMouseOverComponent = renderingContext.clickedItem;
-                    currentMouseOverComponent.mouseEntered();
-                    viewRepaintNeeded = true;
+                    currentMouseOverComponent = renderingContext.objectUnderMouse;
+                    viewRepaintNeeded |= currentMouseOverComponent.mouseEntered();
+                } else if (currentMouseOverComponent != renderingContext.objectUnderMouse) {
+                    viewRepaintNeeded |= currentMouseOverComponent.mouseExited();
+                    currentMouseOverComponent = renderingContext.objectUnderMouse;
+                    viewRepaintNeeded |= currentMouseOverComponent.mouseEntered();
                 }
             } else {
                 // mouse click
-                renderingContext.clickedItem.mouseClicked();
-                viewRepaintNeeded = true;
+                viewRepaintNeeded |= renderingContext.objectUnderMouse.mouseClicked();
             }
         } else if (currentMouseOverComponent != null) {
-            currentMouseOverComponent.mouseExited();
-            viewRepaintNeeded = true;
+            viewRepaintNeeded |= currentMouseOverComponent.mouseExited();
             currentMouseOverComponent = null;
         }
     }
@@ -160,8 +158,6 @@ public class ViewPanel extends JPanel implements ComponentListener {
     }
 
     private void renderFrame() {
-        if (isNewRenderingContextNeeded())
-            renderingContext = new RenderingContext(getWidth(), getHeight());
 
         // paint root geometry collection to the offscreen render buffer
         clearCanvas();
@@ -178,12 +174,6 @@ public class ViewPanel extends JPanel implements ComponentListener {
         renderingContext.graphics.fillRect(0, 0, getWidth(), getHeight());
     }
 
-    private boolean isNewRenderingContextNeeded() {
-        return (renderingContext == null)
-                || (renderingContext.width != getWidth())
-                || (renderingContext.height != getHeight());
-    }
-
     /**
      * Calling this methods tells 3D engine that current 3D view needs to be
      * repainted on first opportunity.
@@ -232,10 +222,7 @@ public class ViewPanel extends JPanel implements ComponentListener {
      * graphics is needed.
      */
     void updateView() {
-        if (renderingContext != null) {
-            renderingContext.mouseClick = null;
-            renderingContext.clickedItem = null;
-        }
+        maintainRenderingContext();
 
         final int millisecondsPassedSinceLastUpdate = getMillisecondsPassedSinceLastUpdate();
 
@@ -247,13 +234,30 @@ public class ViewPanel extends JPanel implements ComponentListener {
         }
 
         // abort rendering if window size is invalid
-        if ((getWidth() <= 0) || (getHeight() <= 0))
-            renderFrame = false;
-
-        if (renderFrame) {
+        if ((getWidth() > 0) && (getHeight() > 0) && renderFrame) {
             renderFrame();
             handleDetectedComponentMouseEvents();
         }
+
+    }
+
+    private void maintainRenderingContext() {
+        int panelWidth = getWidth();
+        int panelHeight = getHeight();
+
+        if (panelWidth <= 0 || panelHeight <=0){
+            renderingContext = null;
+            return;
+        }
+
+        if ((renderingContext == null)
+                || (renderingContext.width != panelWidth)
+                || (renderingContext.height != panelHeight)) {
+            renderingContext = new RenderingContext(panelWidth, panelHeight);
+        }
+
+        renderingContext.mouseEvent = null;
+        renderingContext.objectUnderMouse = null;
     }
 
     private boolean notifyViewRenderListeners(int millisecondsPassedSinceLastUpdate) {
@@ -274,4 +278,13 @@ public class ViewPanel extends JPanel implements ComponentListener {
         lastUpdateMillis = currentTime;
         return millisecondsPassedSinceLastUpdate;
     }
+
+    public void addViewRenderListener(ViewRenderListener viewRenderListener) {
+        viewRenderListeners.add(viewRenderListener);
+    }
+
+    public void removeViewRenderListener(ViewRenderListener viewRenderListener) {
+        viewRenderListeners.remove(viewRenderListener);
+    }
+
 }