Fix so Deck Importer and other JDialogs display centered over main Forge window

.gitattributes

@@ -15500,6 +15500,7 @@ src/main/java/forge/util/storage/StorageReaderFileSections.java -text
 src/main/java/forge/util/storage/StorageReaderFolder.java -text
 src/main/java/forge/util/storage/package-info.java -text
 src/main/java/forge/view/ButtonUtil.java svneol=native#text/plain
+src/main/java/forge/view/FDialog.java -text
 src/main/java/forge/view/FFrame.java -text
 src/main/java/forge/view/FNavigationBar.java -text
 src/main/java/forge/view/FTitleBar.java -text

src/main/java/forge/error/BugReporter.java

@@ -241,10 +241,9 @@ public class BugReporter {
         
         JOptionPane pane = new JOptionPane(p, JOptionPane.PLAIN_MESSAGE,
                 JOptionPane.DEFAULT_OPTION, null, options.toArray(), options.get(0));
-        JDialog dlg = pane.createDialog(null, title);
+        JDialog dlg = pane.createDialog(JOptionPane.getRootFrame(), title);
         dlg.setSize(showExitAppBtn ? 780 : 600, 400);
         dlg.setResizable(true);
-        dlg.setLocationRelativeTo(null);
         dialogShown = true;
         dlg.setVisible(true);
         dlg.dispose();

src/main/java/forge/gui/GuiUtils.java

@@ -17,11 +17,8 @@
  */
 package forge.gui;
 
-import java.awt.Dimension;
 import java.awt.Font;
 import java.awt.FontFormatException;
-import java.awt.Rectangle;
-import java.awt.Window;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.io.File;
@@ -50,22 +47,6 @@ public final class GuiUtils {
         throw new AssertionError();
     }
 
-    /**
-     * Centers a frame on the screen based on its current size.
-     * 
-     * @param frame
-     *            a fully laid-out frame
-     */
-    public static void centerFrame(final Window frame) {
-        final Dimension screen = frame.getToolkit().getScreenSize();
-        final Rectangle bounds = frame.getBounds();
-        bounds.width = frame.getWidth();
-        bounds.height = frame.getHeight();
-        bounds.x = (screen.width - bounds.width) / 2;
-        bounds.y = (screen.height - bounds.height) / 2;
-        frame.setBounds(bounds);
-    }
-
     /**
      * Attempts to create a font from a filename. Concise error reported if
      * exceptions found.

src/main/java/forge/gui/deckeditor/DeckImport.java

@@ -26,7 +26,6 @@ import java.util.Calendar;
 import java.util.List;
 
 import javax.swing.BorderFactory;
-import javax.swing.JDialog;
 import javax.swing.JEditorPane;
 import javax.swing.JOptionPane;
 import javax.swing.border.TitledBorder;
@@ -44,7 +43,6 @@ import forge.deck.DeckBase;
 import forge.deck.DeckRecognizer;
 import forge.deck.DeckRecognizer.TokenType;
 import forge.deck.DeckSection;
-import forge.gui.GuiUtils;
 import forge.gui.deckeditor.controllers.ACEditorBase;
 import forge.gui.toolbox.FButton;
 import forge.gui.toolbox.FCheckBox;
@@ -55,6 +53,7 @@ import forge.gui.toolbox.FScrollPane;
 import forge.gui.toolbox.FTextArea;
 import forge.item.PaperCard;
 import forge.item.InventoryItem;
+import forge.view.FDialog;
 
 /**
  * 
@@ -63,7 +62,7 @@ import forge.item.InventoryItem;
  * @param <TItem>
  * @param <TModel>
  */
-public class DeckImport<TItem extends InventoryItem, TModel extends DeckBase> extends JDialog {
+public class DeckImport<TItem extends InventoryItem, TModel extends DeckBase> extends FDialog {
     private static final long serialVersionUID = -5837776824284093004L;
 
     private final FTextArea txtInput = new FTextArea();
@@ -122,7 +121,6 @@ public class DeckImport<TItem extends InventoryItem, TModel extends DeckBase> ex
 
         this.setPreferredSize(new java.awt.Dimension(wWidth, wHeight));
         this.setSize(wWidth, wHeight);
-        GuiUtils.centerFrame(this);
         this.setResizable(false);
         this.setTitle("Deck Importer");
         

src/main/java/forge/gui/match/VAssignDamage.java

@@ -28,11 +28,11 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import javax.swing.JDialog;
 import javax.swing.JLabel;
 import javax.swing.JPanel;
 import javax.swing.SwingConstants;
 import javax.swing.SwingUtilities;
+
 import net.miginfocom.swing.MigLayout;
 import forge.Card;
 import forge.CounterType;
@@ -44,6 +44,7 @@ import forge.gui.toolbox.FButton;
 import forge.gui.toolbox.FLabel;
 import forge.gui.toolbox.FScrollPane;
 import forge.gui.toolbox.FSkin;
+import forge.view.FDialog;
 import forge.view.arcane.CardPanel;
 
 /**
@@ -59,7 +60,7 @@ public class VAssignDamage {
     // Width and height of blocker dialog
     private final int wDlg = 700;
     private final int hDlg = 500;
-    private final JDialog dlg = new JDialog();
+    private final FDialog dlg = new FDialog();
 
     // Damage storage
     private final int totalDamageToAssign;

src/main/java/forge/view/FDialog.java

@@ -0,0 +1,24 @@
+package forge.view;
+
+import javax.swing.JDialog;
+import javax.swing.JOptionPane;
+
+@SuppressWarnings("serial")
+public class FDialog extends JDialog {
+
+    public FDialog() {
+        this(true);
+    }
+    
+    public FDialog(boolean modal0) {
+        super(JOptionPane.getRootFrame(), modal0);
+    }
+    
+    @Override
+    public void setVisible(boolean visible) {
+        if (visible) {
+            setLocationRelativeTo(JOptionPane.getRootFrame());
+        }
+        super.setVisible(visible);
+    }
+}