Zoom fix to 9patch plugin

plugin-9patch/src/main/java/games/rednblack/editor/plugin/ninepatch/EditingZone.java

@@ -37,7 +37,7 @@ public class EditingZone extends Actor {
     private int[] splits = new int[4];
 
     public interface PatchChangeListener {
-        public void changed(int[] splits);
+        void changed(int[] splits);
     }
 
     private PatchChangeListener listener;
@@ -120,6 +120,12 @@ public class EditingZone extends Actor {
                 mouseOverSplit = splitCollision(x, y);
                 return false;
             }
+
+            @Override
+            public boolean scrolled(InputEvent event, float x, float y, float amountX, float amountY) {
+                zoomBy(amountY);
+                return true;
+            }
         });
     }
 
@@ -153,14 +159,15 @@ public class EditingZone extends Actor {
     public void draw (Batch batch, float parentAlpha) {
         Rectangle scissors = new Rectangle();
         Rectangle clipBounds = new Rectangle(getX(),getY(),getWidth(),getHeight());
+        batch.flush();
         ScissorStack.calculateScissors(getStage().getCamera(), batch.getTransformMatrix(), clipBounds, scissors);
         ScissorStack.pushScissors(scissors);
 
         drawBg(batch, parentAlpha);
 
         batch.draw(texture,
-                getX() + getWidth() / 2 - texture.getRegionWidth() / 2 + shift.x,
-                getY() + getHeight() / 2 - texture.getRegionHeight() / 2 + shift.y,
+                getX() + getWidth() / 2 - texture.getRegionWidth() / 2f + shift.x,
+                getY() + getHeight() / 2 - texture.getRegionHeight() / 2f + shift.y,
                 texture.getRegionWidth() / 2f,
                 texture.getRegionHeight() / 2f,
                 texture.getRegionWidth(), texture.getRegionHeight(),
@@ -213,8 +220,8 @@ public class EditingZone extends Actor {
 
         splitPositions[0] = shift.x + getWidth() / 2f + (-texture.getRegionWidth() / 2f + splits[0]) * currZoom;
         splitPositions[1] = shift.x + getWidth() / 2f + (texture.getRegionWidth() / 2f - splits[1]) * currZoom;
-        splitPositions[2] = shift.y + getHeight()/2f + (texture.getRegionHeight()/2 - splits[2])*currZoom;
-        splitPositions[3] = shift.y + getHeight() / 2f + (-texture.getRegionHeight() / 2 + splits[3]) * currZoom;
+        splitPositions[2] = shift.y + getHeight()/2f + (texture.getRegionHeight() / 2f - splits[2])*currZoom;
+        splitPositions[3] = shift.y + getHeight() / 2f + (-texture.getRegionHeight() / 2f + splits[3]) * currZoom;
 
 
         if(mouseOverSplit == 0) shapeRenderer.setColor(overColor); else shapeRenderer.setColor(guideColor);

plugin-9patch/src/main/java/games/rednblack/editor/plugin/ninepatch/MainPanel.java

@@ -4,7 +4,6 @@ import com.badlogic.gdx.graphics.g2d.TextureAtlas;
 import com.badlogic.gdx.graphics.g2d.TextureRegion;
 import com.badlogic.gdx.scenes.scene2d.InputEvent;
 import com.badlogic.gdx.scenes.scene2d.InputListener;
-import com.badlogic.gdx.scenes.scene2d.Stage;
 import com.badlogic.gdx.scenes.scene2d.utils.ClickListener;
 import com.badlogic.gdx.utils.Align;
 import com.kotcrab.vis.ui.widget.VisLabel;
@@ -33,7 +32,7 @@ public class MainPanel extends H2DDialog {
     private PreviewWidget previewWidget;
 
     public MainPanel(IFacade facade) {
-        super("Nine Patch");
+        super("Nine Patch", false);
         addCloseButton();
 
         this.facade = facade;
@@ -53,6 +52,13 @@ public class MainPanel extends H2DDialog {
         editingZone = new EditingZone();
         editingZone.setTexture(texture);
         editingTable.add(editingZone);
+        addListener(new InputListener() {
+            @Override
+            public boolean scrolled(InputEvent event, float x, float y, float amountX, float amountY) {
+                editingZone.zoomBy(amountY);
+                return true;
+            }
+        });
 
         editingZone.setWidth(310);
         editingZone.setHeight(310);
@@ -96,16 +102,6 @@ public class MainPanel extends H2DDialog {
         initPreView();
     }
 
-    public void setListeners(Stage stage) {
-        stage.addListener(new InputListener() {
-            @Override
-            public boolean scrolled(InputEvent event, float x, float y, float amountX, float amountY) {
-                editingZone.zoomBy(amountX);
-                return false;
-            }
-        });
-    }
-
     public int[] getSplits() {
         return editingZone.getSplits();
     }

plugin-9patch/src/main/java/games/rednblack/editor/plugin/ninepatch/MainPanelMediator.java

@@ -150,8 +150,6 @@ public class MainPanelMediator extends Mediator<MainPanel> {
         TextureAtlas.AtlasRegion region = plugin.getAPI().getProjectTextureRegion(name);
         validateNinePatchTextureRegion(region);
         viewComponent.setTexture(region);
-
-        viewComponent.setListeners(plugin.getAPI().getUIStage());
     }
 
     private void validateNinePatchTextureRegion(TextureAtlas.AtlasRegion texture) {