Fixed the GFilterTable to have the selection notification include when

the selection is cleared

Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/calltree/CallTreeProvider.java

@@ -17,7 +17,6 @@ package ghidra.app.plugin.core.calltree;
 
 import java.awt.*;
 import java.awt.event.*;
-import java.awt.geom.Rectangle2D;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicInteger;
 
@@ -27,7 +26,7 @@ import javax.swing.tree.TreePath;
 import docking.ActionContext;
 import docking.WindowPosition;
 import docking.action.*;
-import docking.util.GraphicsUtils;
+import docking.resources.icons.NumberIcon;
 import docking.widgets.dialogs.NumberInputDialog;
 import docking.widgets.label.GLabel;
 import docking.widgets.tree.*;
@@ -1283,97 +1282,6 @@ public class CallTreeProvider extends ComponentProviderAdapter implements Domain
 		}
 	}
 
-	private class NumberIcon implements Icon {
-		private String number;
-		private float bestFontSize = -1;
-
-		NumberIcon(int number) {
-			this.number = Integer.toString(number);
-		}
-
-		void setNumber(int number) {
-			this.number = Integer.toString(number);
-			bestFontSize = -1;
-		}
-
-		@Override
-		public void paintIcon(Component c, Graphics g, int x, int y) {
-			g.setColor(Color.WHITE);
-			g.fillRect(x, y, getIconWidth(), getIconHeight());
-			g.setColor(new Color(0xb5d5ff));
-			g.drawRect(x, y, getIconWidth(), getIconHeight());
-
-			float fontSize = getMaxFontSize(g, getIconWidth() - 1, getIconHeight());
-			Font originalFont = g.getFont();
-			Font textFont = originalFont.deriveFont(fontSize).deriveFont(Font.BOLD);
-			g.setFont(textFont);
-
-			FontMetrics fontMetrics = g.getFontMetrics(textFont);
-			Rectangle2D stringBounds = fontMetrics.getStringBounds(number, g);
-			int textHeight = (int) stringBounds.getHeight();
-			int iconHeight = getIconHeight();
-			int space = y + iconHeight - textHeight;
-			int halfSpace = space >> 1;
-			int baselineY = y + iconHeight - halfSpace;// - halfTextHeight;// + halfTextHeight;
-
-			int textWidth = (int) stringBounds.getWidth();
-			int iconWidth = getIconWidth();
-			int halfWidth = iconWidth >> 1;
-			int halfTextWidth = textWidth >> 1;
-			int baselineX = x + halfWidth - halfTextWidth;
-
-			g.setColor(Color.BLACK);
-			JComponent jc = null;
-			if (c instanceof JComponent) {
-				jc = (JComponent) c;
-			}
-			GraphicsUtils.drawString(jc, g, number, baselineX, baselineY);
-		}
-
-		private float getMaxFontSize(Graphics g, int width, int height) {
-			if (bestFontSize > 0) {
-				return bestFontSize;
-			}
-
-			float size = 12f;
-			Font font = g.getFont().deriveFont(size); // reasonable default
-			if (textFitsInFont(g, font, width, height)) {
-				bestFontSize = size;
-				return bestFontSize;
-			}
-
-			do {
-				size--;
-				font = g.getFont().deriveFont(size);
-			}
-			while (!textFitsInFont(g, font, width, height));
-
-			bestFontSize = Math.max(1f, size);
-			return bestFontSize;
-		}
-
-		private boolean textFitsInFont(Graphics g, Font font, int width, int height) {
-			FontMetrics fontMetrics = g.getFontMetrics(font);
-			int textWidth = fontMetrics.stringWidth(number);
-			if (textWidth > width) {
-				return false;
-			}
-
-			int textHeight = fontMetrics.getHeight();
-			return textHeight < height;
-		}
-
-		@Override
-		public int getIconHeight() {
-			return 16;
-		}
-
-		@Override
-		public int getIconWidth() {
-			return 16;
-		}
-	}
-
 	private class PendingRootNode extends GTreeNode {
 
 		@Override

Ghidra/Framework/Docking/src/main/java/docking/resources/icons/NumberIcon.java

@@ -0,0 +1,122 @@
+/* ###
+ * IP: GHIDRA
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package docking.resources.icons;
+
+import java.awt.*;
+import java.awt.geom.Rectangle2D;
+
+import javax.swing.Icon;
+import javax.swing.JComponent;
+
+import docking.util.GraphicsUtils;
+
+/**
+ * An icon that paints the given number
+ */
+public class NumberIcon implements Icon {
+
+	private String number;
+	private float bestFontSize = -1;
+
+	public NumberIcon(int number) {
+		this.number = Integer.toString(number);
+	}
+
+	public void setNumber(int number) {
+		this.number = Integer.toString(number);
+		bestFontSize = -1;
+	}
+
+	@Override
+	public void paintIcon(Component c, Graphics g, int x, int y) {
+		g.setColor(Color.WHITE);
+		g.fillRect(x, y, getIconWidth(), getIconHeight());
+		g.setColor(new Color(0xb5d5ff));
+		g.drawRect(x, y, getIconWidth(), getIconHeight());
+
+		float fontSize = getMaxFontSize(g, getIconWidth() - 1, getIconHeight());
+		Font originalFont = g.getFont();
+		Font textFont = originalFont.deriveFont(fontSize).deriveFont(Font.BOLD);
+		g.setFont(textFont);
+
+		FontMetrics fontMetrics = g.getFontMetrics(textFont);
+		Rectangle2D stringBounds = fontMetrics.getStringBounds(number, g);
+		int textHeight = (int) stringBounds.getHeight();
+		int iconHeight = getIconHeight();
+		int space = y + iconHeight - textHeight;
+		int halfSpace = space >> 1;
+		int baselineY = y + iconHeight - halfSpace;// - halfTextHeight;// + halfTextHeight;
+
+		int textWidth = (int) stringBounds.getWidth();
+		int iconWidth = getIconWidth();
+		int halfWidth = iconWidth >> 1;
+		int halfTextWidth = textWidth >> 1;
+		int baselineX = x + (halfWidth - halfTextWidth);
+
+		g.setColor(Color.BLACK);
+		JComponent jc = null;
+		if (c instanceof JComponent) {
+			jc = (JComponent) c;
+		}
+		GraphicsUtils.drawString(jc, g, number, baselineX, baselineY);
+	}
+
+	private float getMaxFontSize(Graphics g, int width, int height) {
+		if (bestFontSize > 0) {
+			return bestFontSize;
+		}
+
+		float size = 12f;
+		Font font = g.getFont().deriveFont(size); // reasonable default
+		if (textFitsInFont(g, font, width, height)) {
+			bestFontSize = size;
+			return bestFontSize;
+		}
+
+		do {
+			size--;
+			font = g.getFont().deriveFont(size);
+		}
+		while (!textFitsInFont(g, font, width, height));
+
+		bestFontSize = Math.max(1f, size);
+		return bestFontSize;
+	}
+
+	private boolean textFitsInFont(Graphics g, Font font, int width, int height) {
+
+		// padding so the text does not touch the border
+		int padding = 2;
+		FontMetrics fontMetrics = g.getFontMetrics(font);
+		int textWidth = fontMetrics.stringWidth(number) + padding;
+		if (textWidth > width) {
+			return false;
+		}
+
+		int textHeight = fontMetrics.getHeight();
+		return textHeight < height;
+	}
+
+	@Override
+	public int getIconHeight() {
+		return 16;
+	}
+
+	@Override
+	public int getIconWidth() {
+		return 16;
+	}
+}

Ghidra/Framework/Docking/src/main/java/docking/widgets/table/GFilterTable.java

@@ -70,7 +70,7 @@ public class GFilterTable<ROW_OBJECT> extends JPanel {
 	private void addTableSelectionListener(GTable gTable) {
 		gTable.getSelectionModel().addListSelectionListener(e -> {
 			if (!e.getValueIsAdjusting()) {
-				rowSelected();
+				rowSelectionChanged();
 			}
 		});
 	}
@@ -116,6 +116,7 @@ public class GFilterTable<ROW_OBJECT> extends JPanel {
 
 	public void clearSelection() {
 		table.clearSelection();
+		table.getSelectionManager().clearSavedSelection();
 	}
 
 	/**
@@ -163,19 +164,31 @@ public class GFilterTable<ROW_OBJECT> extends JPanel {
 		listeners.remove(l);
 	}
 
-	/**
-	 * Notifies listeners that an item was selected.
-	 */
-	protected void rowSelected() {
+	private void rowSelectionChanged() {
 		ROW_OBJECT selectedObject = null;
 		if (table.getSelectedRow() >= 0) {
 			selectedObject = getSelectedRowObject();
 		}
 
 		if (selectedObject == null) {
+			rowSelectionCleared();
 			return; // can happen for transient events
 		}
 
+		rowSelected(selectedObject);
+	}
+
+	protected void rowSelectionCleared() {
+		for (ObjectSelectedListener<ROW_OBJECT> l : listeners) {
+			l.objectSelected(null);
+		}
+	}
+
+	/**
+	 * Notifies listeners that an item was selected
+	 * @param selectedObject the selected row object
+	 */
+	protected void rowSelected(ROW_OBJECT selectedObject) {
 		for (ObjectSelectedListener<ROW_OBJECT> l : listeners) {
 			l.objectSelected(selectedObject);
 		}

Ghidra/Framework/Docking/src/main/java/docking/widgets/table/ObjectSelectedListener.java

@@ -15,6 +15,16 @@
  */
 package docking.widgets.table;
 
+/**
+ * An interface for clients to know when an object is selected and when the selection is cleared
+ *
+ * @param <T> the object type
+ */
 public interface ObjectSelectedListener<T> {
+
+	/**
+	 * When an object is select; null if the selection is cleared
+	 * @param t the object selected or null
+	 */
 	public void objectSelected(T t);
 }

Ghidra/Framework/Generic/src/main/java/ghidra/util/HTMLUtilities.java

@@ -270,7 +270,7 @@ public class HTMLUtilities {
 	 * @param text the text to check
 	 * @return true if the text cannot be correctly broken into lines
 	 */
-	private static boolean isUnbreakableHTML(String text) {
+	public static boolean isUnbreakableHTML(String text) {
 		if (text.contains(HTML_SPACE) && !text.contains(" ")) {
 			// this can happen if the client has called a method on this class that turns spaces
 			// to the HTML_SPACE