Targeting overlay implemented (experimental, for enchantments only).

Dock button and preference toggle also enabled.

.gitattributes

@@ -12465,6 +12465,7 @@ src/main/java/forge/gui/match/ControlWinLose.java -text
 src/main/java/forge/gui/match/GauntletWinLose.java -text
 src/main/java/forge/gui/match/QuestWinLoseCardViewer.java -text
 src/main/java/forge/gui/match/QuestWinLoseHandler.java -text
+src/main/java/forge/gui/match/TargetingOverlay.java -text
 src/main/java/forge/gui/match/VMatchUI.java -text
 src/main/java/forge/gui/match/ViewWinLose.java -text
 src/main/java/forge/gui/match/controllers/CAntes.java -text

src/main/java/forge/control/FControl.java

@@ -256,11 +256,12 @@ public enum FControl {
     /** Sizes children of JLayeredPane to fully fit their layers. */
     private void sizeChildren() {
         Component[] children = display.getComponentsInLayer(JLayeredPane.DEFAULT_LAYER);
-        if (children.length == 0) { return; }
-        children[0].setSize(display.getSize());
+        if (children.length != 0) { children[0].setSize(display.getSize()); }
+
+        children = display.getComponentsInLayer(FView.TARGETING_LAYER);
+        if (children.length != 0) { children[0].setSize(display.getSize()); }
 
         children = display.getComponentsInLayer(JLayeredPane.MODAL_LAYER);
-        if (children.length == 0) { return; }
-        children[0].setSize(display.getSize());
+        if (children.length != 0) { children[0].setSize(display.getSize()); }
     }
 }

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

@@ -0,0 +1,157 @@
+/*
+ * Forge: Play Magic: the Gathering.
+ * Copyright (C) 2011  Forge Team
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package forge.gui.match;
+
+import java.awt.BasicStroke;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Point;
+import java.awt.RenderingHints;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.swing.JPanel;
+
+import forge.Card;
+import forge.control.FControl;
+import forge.gui.match.nonsingleton.CField;
+import forge.gui.toolbox.FSkin;
+import forge.model.FModel;
+import forge.properties.ForgePreferences.FPref;
+import forge.view.FView;
+import forge.view.arcane.CardPanel;
+import forge.view.arcane.PlayArea;
+
+/**
+ * Semi-transparent overlay panel. Should be used with layered panes.
+ * 
+ */
+
+@SuppressWarnings("serial")
+public enum TargetingOverlay {
+    /** */
+    SINGLETON_INSTANCE;
+
+    private final JPanel pnl = new OverlayPanel();
+    private final List<PlayArea> playAreas;
+    private List<CardPanel> cardPanels;
+    private final List<Point[]> arcs = new ArrayList<Point[]>();
+
+    /**
+     * Semi-transparent overlay panel. Should be used with layered panes.
+     */
+    private TargetingOverlay() {
+        playAreas = new ArrayList<PlayArea>();
+        cardPanels = new ArrayList<CardPanel>();
+
+        for (CField f : CMatchUI.SINGLETON_INSTANCE.getFieldControls()) {
+            playAreas.add(f.getView().getTabletop());
+        }
+
+        pnl.setOpaque(false);
+        pnl.setBackground(FSkin.getColor(FSkin.Colors.CLR_ZEBRA));
+    }
+
+    /** @return {@link javax.swing.JPanel} */
+    public JPanel getPanel() {
+        return this.pnl;
+    }
+
+    // TODO - this is called every repaint, regardless if card
+    // positions have changed or not.  Could perform better if
+    // it checked for a state change.  Doublestrike 28-09-12
+    private void assembleArcs() {
+        arcs.clear();
+        cardPanels.clear();
+        cardPanels.addAll(playAreas.get(0).getCardPanels());
+        cardPanels.addAll(playAreas.get(1).getCardPanels());
+
+        final Point docOffsets = FView.SINGLETON_INSTANCE.getLpnDocument().getLocationOnScreen();
+        // Locations of arc endpoint, per card, with ID as primary key.
+        final Map<Integer, Point> endpoints = new HashMap<Integer, Point>();
+
+        // Assemble card locations for easy reference
+        for (CardPanel c : cardPanels) {
+            if (!c.isShowing()) { continue; }
+            endpoints.put(c.getCard().getUniqueNumber(), new Point(
+                (int) (c.getParent().getLocationOnScreen().getX() + c.getCardLocation().getX() - docOffsets.getX() + c.getWidth() / 4),
+                (int) (c.getParent().getLocationOnScreen().getY() + c.getCardLocation().getY() - docOffsets.getY() + c.getHeight() / 4)
+            ));
+        }
+
+        List<Card> temp = new ArrayList<Card>();
+        for (CardPanel c : cardPanels) {
+            if (!c.isShowing()) { continue; }
+            temp = c.getCard().getEnchantedBy();
+            for (Card enchantingCard : temp) {
+                arcs.add(new Point[] {
+                    endpoints.get(c.getCard().getUniqueNumber()),
+                    endpoints.get(enchantingCard.getUniqueNumber())
+                });
+            }
+        }
+
+        temp.clear();
+        endpoints.clear();
+    }
+
+    private class OverlayPanel extends JPanel {
+        /**
+         * For some reason, the alpha channel background doesn't work properly on
+         * Windows 7, so the paintComponent override is required for a
+         * semi-transparent overlay.
+         * 
+         * @param g
+         *            &emsp; Graphics object
+         */
+        @Override
+        public void paintComponent(final Graphics g) {
+            // No need for this except in match view
+            if (FControl.SINGLETON_INSTANCE.getState() != 1) {
+                return;
+            }
+            else if (!Boolean.valueOf(FModel.SINGLETON_INSTANCE.getPreferences().getPref(FPref.UI_TARGETING_OVERLAY))) {
+                return;
+            }
+
+            super.paintComponent(g);
+            // Arc drawing
+            Graphics2D g2d = (Graphics2D) g;
+            g2d.setColor(FSkin.getColor(FSkin.Colors.CLR_ACTIVE));
+            g2d.setStroke(new BasicStroke(3F));
+            g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
+                    RenderingHints.VALUE_ANTIALIAS_ON);
+
+            assembleArcs();
+            int w, h, x, y;
+
+            for (Point[] p : arcs) {
+                w = Math.abs((int) p[1].getX() - (int) p[0].getX());
+                h = Math.abs((int) p[1].getY() - (int) p[0].getY());
+                x = (Math.min((int) p[1].getX(), (int) p[0].getX()) - w);
+                y = (Math.min((int) p[1].getY(), (int) p[0].getY()));
+
+                g2d.drawArc(x, y, 2 * w, 2 * h, 0, 90);
+                g2d.fillOval((int) p[0].getX() - 4, (int) p[0].getY() - 4, 8, 8);
+                g2d.fillOval((int) p[1].getX() - 4, (int) p[1].getY() - 4, 8, 8);
+            }
+        }
+    }
+}

src/main/java/forge/gui/match/controllers/CDock.java

@@ -47,11 +47,14 @@ import forge.gui.ForgeAction;
 import forge.gui.SOverlayUtils;
 import forge.gui.framework.ICDoc;
 import forge.gui.framework.SLayoutIO;
+import forge.gui.match.TargetingOverlay;
 import forge.gui.match.views.VDock;
 import forge.gui.toolbox.FOverlay;
 import forge.gui.toolbox.SaveOpenDialog;
 import forge.gui.toolbox.SaveOpenDialog.Filetypes;
 import forge.item.CardPrinted;
+import forge.model.FModel;
+import forge.properties.ForgePreferences.FPref;
 import forge.properties.NewConstants;
 import forge.view.FView;
 
@@ -142,11 +145,11 @@ public enum CDock implements ICDoc {
         new DeckListAction(NewConstants.Lang.GuiDisplay.HUMAN_DECKLIST).actionPerformed(null);
     }
 
-    /** Attack with everyone */
+    /** Attack with everyone. */
     public void alphaStrike() {
-        PhaseHandler ph = Singletons.getModel().getGameState().getPhaseHandler();
+        final PhaseHandler ph = Singletons.getModel().getGameState().getPhaseHandler();
 
-        Player human = AllZone.getHumanPlayer();
+        final Player human = AllZone.getHumanPlayer();
 
         if (ph.is(PhaseType.COMBAT_DECLARE_ATTACKERS, human)) {
             for (Card c : human.getCardsIn(ZoneType.Battlefield).filter(Presets.CREATURES)) {
@@ -155,11 +158,25 @@ public enum CDock implements ICDoc {
                 }
             }
             //human.updateObservers();
+
             // TODO Is this redrawing immediately?
             FView.SINGLETON_INSTANCE.getFrame().repaint();
         }
     }
 
+    /** Toggle targeting overlay painting. */
+    public void toggleTargeting() {
+        if (Boolean.valueOf(FModel.SINGLETON_INSTANCE.getPreferences().getPref(FPref.UI_TARGETING_OVERLAY))) {
+            FModel.SINGLETON_INSTANCE.getPreferences().setPref(FPref.UI_TARGETING_OVERLAY, "false");
+        }
+        else {
+            FModel.SINGLETON_INSTANCE.getPreferences().setPref(FPref.UI_TARGETING_OVERLAY, "true");
+        }
+
+        FModel.SINGLETON_INSTANCE.getPreferences().save();
+        TargetingOverlay.SINGLETON_INSTANCE.getPanel().repaint();
+    }
+
     /**
      * Receives click and programmatic requests for viewing a player's library
      * (typically used in dev mode). Allows copy of the cardlist to clipboard.
@@ -287,6 +304,11 @@ public enum CDock implements ICDoc {
         .addMouseListener(new MouseAdapter() { @Override
             public void mousePressed(final MouseEvent e) {
                 alphaStrike(); } });
+
+        VDock.SINGLETON_INSTANCE.getBtnTargeting()
+        .addMouseListener(new MouseAdapter() { @Override
+            public void mousePressed(final MouseEvent e) {
+                toggleTargeting(); } });
     }
 
     /* (non-Javadoc)

src/main/java/forge/gui/match/views/VDock.java

@@ -67,6 +67,8 @@ public enum VDock implements IVDoc {
             new DockButton(FSkin.getIcon(FSkin.DockIcons.ICO_SAVELAYOUT), "Save Layout");
     private final JLabel btnAlphaStrike =
             new DockButton(FSkin.getIcon(FSkin.DockIcons.ICO_ALPHASTRIKE), "Alpha Strike");
+    private final JLabel btnTargeting =
+            new DockButton(FSkin.getIcon(FSkin.DockIcons.ICO_TARGETING), "Show Targeting Arcs");
 
     //========= Overridden methods
 
@@ -88,6 +90,7 @@ public enum VDock implements IVDoc {
         pnl.add(btnOpenLayout);
         pnl.add(btnSaveLayout);
         pnl.add(btnAlphaStrike);
+        pnl.add(btnTargeting);
     }
 
     /* (non-Javadoc)
@@ -172,6 +175,11 @@ public enum VDock implements IVDoc {
         return btnAlphaStrike;
     }
 
+    /** @return {@link javax.swing.JLabel} */
+    public JLabel getBtnTargeting() {
+        return btnTargeting;
+    }
+
     //========= Custom class handling
     /**
      * Buttons in Dock. JLabels are used to allow hover effects.

src/main/java/forge/gui/toolbox/FSkin.java

@@ -227,7 +227,8 @@ public enum FSkin {
         ICO_OPENLAYOUT   (new int[] {0, 800, 80, 80}), /** */
         ICO_SAVELAYOUT   (new int[] {80, 800, 80, 80}), /** */
         ICO_DECKLIST     (new int[] {400, 640, 80, 80}), /** */
-        ICO_ALPHASTRIKE  (new int[] {160, 800, 80, 80});
+        ICO_ALPHASTRIKE  (new int[] {160, 800, 80, 80}), /** */
+        ICO_TARGETING  (new int[] {240, 800, 80, 80});
 
         private int[] coords;
         /** @param xy   int[] coordinates */

src/main/java/forge/properties/ForgePreferences.java

@@ -67,6 +67,7 @@ public class ForgePreferences {
         UI_MANABURN("false"), /** */
         UI_SKIN ("default"), /** */
         UI_PREFERRED_AVATARS_ONLY ("false"), /** */
+        UI_TARGETING_OVERLAY ("false"), /** */
 
         SUBMENU_CURRENTMENU (EMenuItem.CONSTRUCTED.toString()), /** */
         SUBMENU_SANCTIONED ("false"), /** */

src/main/java/forge/view/FView.java

@@ -24,6 +24,7 @@ import forge.gui.framework.EDocID;
 import forge.gui.framework.SLayoutConstants;
 import forge.gui.home.CMainMenu;
 import forge.gui.home.VHomeUI;
+import forge.gui.match.TargetingOverlay;
 import forge.gui.match.VMatchUI;
 import forge.gui.toolbox.FOverlay;
 import forge.gui.toolbox.FPanel;
@@ -33,6 +34,9 @@ import forge.gui.toolbox.FSkin;
 public enum FView {
     /** */
     SINGLETON_INSTANCE;
+
+    /** */
+    public static final Integer TARGETING_LAYER = JLayeredPane.MODAL_LAYER - 1;
     private final List<DragCell> allCells = new ArrayList<DragCell>();
     private SplashFrame splash;
 
@@ -73,6 +77,10 @@ public enum FView {
         lpnDocument.add(pnlPreview, (Integer) 2);
         lpnDocument.add(pnlTabOverflow, (Integer) 3);
         lpnDocument.add(FOverlay.SINGLETON_INSTANCE.getPanel(), JLayeredPane.MODAL_LAYER);
+        // Note: when adding new panels here, keep in mind that the layered pane
+        // has a null layout, so new components will be (0,0) - gotcha!
+        // FControl has a method called "sizeComponents" which will fix this.
+        lpnDocument.add(TargetingOverlay.SINGLETON_INSTANCE.getPanel(), TARGETING_LAYER);
 
         pnlInsets.add(pnlContent, BorderLayout.CENTER);
         pnlInsets.setBackgroundTexture(FSkin.getIcon(FSkin.Backgrounds.BG_TEXTURE));