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Added 'Node Name Tooltips' feature that can be toggled in the Config menu

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This commit is contained in:
Bane Stojkovic
2026-08-16 23:39:11 +02:00
parent 63ad65152a
commit 98d9319938
8 changed files with 375 additions and 11 deletions
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diylc/diylc-swing/src/main/java/org/diylc/swing/plugins/canvas/CanvasPlugin.java
+30 -1
View File
@@ -69,6 +69,7 @@ public class CanvasPlugin implements IPlugIn{
private CanvasPanel canvasPanel;
private ComponentPopupMenu popupMenu;
private ResizeInfoTooltip resizeInfoTooltip;
private NodeNameTooltip nodeNameTooltip;
private boolean resizingInProgress = false;
private IPlugInPort plugInPort;
@@ -196,6 +197,7 @@ public class CanvasPlugin implements IPlugIn{
if (canvasPanel == null) {
canvasPanel = new CanvasPanel(plugInPort, configManager);
resizeInfoTooltip = new ResizeInfoTooltip(canvasPanel, configManager);
nodeNameTooltip = new NodeNameTooltip(canvasPanel, configManager);
canvasPanel.addMouseListener(new MouseAdapter() {
private MouseEvent pressedEvent;
@@ -219,6 +221,9 @@ public class CanvasPlugin implements IPlugIn{
canvasPanel.requestFocus();
canvasPanel.setClickInProgress(true);
pressedEvent = e;
if (nodeNameTooltip != null) {
nodeNameTooltip.hideTooltip();
}
}
@Override
@@ -289,6 +294,10 @@ public class CanvasPlugin implements IPlugIn{
resizeInfoTooltip.hideTooltip();
}
}
if (nodeNameTooltip != null && nodeNameTooltip.isVisible()) {
nodeNameTooltip.updatePosition(e.getPoint());
}
}
});
@@ -469,7 +478,7 @@ public class CanvasPlugin implements IPlugIn{
@Override
public EnumSet<EventType> getSubscribedEventTypes() {
return EnumSet.of(EventType.PROJECT_LOADED, EventType.ZOOM_CHANGED, EventType.REPAINT,
EventType.SCROLL_TO);
EventType.SCROLL_TO, EventType.NODE_NAME_HOVER_TOOLTIP);
}
@SuppressWarnings("incomplete-switch")
@@ -567,6 +576,26 @@ public class CanvasPlugin implements IPlugIn{
(int) (targetRect.getCenterY() - visibleRect2.height / 2), visibleRect2.width,
visibleRect2.height));
break;
case NODE_NAME_HOVER_TOOLTIP:
final String nodeText = params.length > 0 ? (String) params[0] : null;
final Point mousePt = params.length > 1 && params[1] instanceof Point ? (Point) params[1] : null;
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
if (nodeText != null) {
Point pt = mousePt != null ? mousePt : getCanvasPanel().getMousePosition();
if (pt != null && nodeNameTooltip != null) {
nodeNameTooltip.update(nodeText, pt);
}
} else {
if (nodeNameTooltip != null) {
nodeNameTooltip.hideTooltip();
}
}
}
});
break;
}
// }
// });
diylc/diylc-swing/src/main/java/org/diylc/swing/plugins/canvas/NodeNameTooltip.java
+198
View File
@@ -0,0 +1,198 @@
/*
*
* DIY Layout Creator (DIYLC). Copyright (c) 2009-2025 held jointly by the individual authors.
*
* This file is part of DIYLC.
*
* DIYLC 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.
*
* DIYLC 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 DIYLC. If not, see
* <http://www.gnu.org/licenses/>.
*/
package org.diylc.swing.plugins.canvas;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.Window;
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.JWindow;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import org.diylc.appframework.miscutils.IConfigurationManager;
/**
* A lightweight tooltip window that displays node/terminal information and tracks the mouse cursor.
*/
public class NodeNameTooltip {
private static final int OFFSET_X = 16;
private static final int OFFSET_Y = 16;
private JWindow tooltipWindow;
private JLabel tooltipLabel;
private Component parentComponent;
private String currentText;
public NodeNameTooltip(Component parentComponent, IConfigurationManager<?> configManager) {
this.parentComponent = parentComponent;
initializeTooltip();
}
private void initializeTooltip() {
Window parentWindow = SwingUtilities.getWindowAncestor(parentComponent);
if (parentWindow == null) {
return;
}
tooltipWindow = new JWindow(parentWindow);
tooltipLabel = new JLabel() {
private static final long serialVersionUID = 1L;
@Override
protected void paintComponent(Graphics g) {
Graphics2D g2d = (Graphics2D) g.create();
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
super.paintComponent(g2d);
g2d.dispose();
}
};
// Use system tooltip font and colors
Font tooltipFont = UIManager.getFont("ToolTip.font");
if (tooltipFont != null) {
tooltipLabel.setFont(tooltipFont);
}
Color tooltipBackground = UIManager.getColor("ToolTip.background");
Color tooltipForeground = UIManager.getColor("ToolTip.foreground");
Color tooltipBorderColor = UIManager.getColor("ToolTip.border");
if (tooltipBorderColor == null) {
tooltipBorderColor = Color.GRAY;
}
tooltipLabel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createLineBorder(tooltipBorderColor, 1),
BorderFactory.createEmptyBorder(4, 6, 4, 6)));
tooltipLabel.setOpaque(true);
tooltipLabel.setBackground(tooltipBackground != null ? tooltipBackground : new Color(255, 255, 220));
tooltipLabel.setForeground(tooltipForeground != null ? tooltipForeground : Color.BLACK);
tooltipWindow.add(tooltipLabel);
tooltipWindow.setFocusableWindowState(false);
tooltipWindow.setAlwaysOnTop(true);
}
/**
* Updates the tooltip with text and mouse position.
*/
public void update(String text, Point mousePosition) {
this.currentText = text;
if (text == null || text.trim().isEmpty() || mousePosition == null) {
hideTooltip();
return;
}
if (tooltipWindow == null) {
initializeTooltip();
if (tooltipWindow == null) {
return;
}
}
tooltipLabel.setText("<html>" + text + "</html>");
tooltipLabel.setPreferredSize(null);
tooltipWindow.pack();
updateTooltipPosition(mousePosition);
tooltipWindow.setVisible(true);
}
/**
* Updates the tooltip position based on the current mouse position.
*/
public void updatePosition(Point mousePosition) {
if (currentText != null && mousePosition != null
&& tooltipWindow != null && tooltipWindow.isVisible()) {
updateTooltipPosition(mousePosition);
}
}
private void updateTooltipPosition(Point mousePosition) {
if (tooltipWindow == null || parentComponent == null) {
return;
}
// Convert mouse position to screen coordinates
Point screenPoint = new Point(mousePosition);
SwingUtilities.convertPointToScreen(screenPoint, parentComponent);
// Position tooltip 16 pixels down and right from cursor
int x = screenPoint.x + OFFSET_X;
int y = screenPoint.y + OFFSET_Y;
// Ensure tooltip stays on screen
Dimension tooltipSize = tooltipWindow.getSize();
if (tooltipSize == null) {
tooltipWindow.pack();
tooltipSize = tooltipWindow.getSize();
}
if (tooltipSize != null) {
java.awt.Toolkit toolkit = java.awt.Toolkit.getDefaultToolkit();
Dimension screenSize = toolkit.getScreenSize();
// Adjust if tooltip would go off screen
if (x + tooltipSize.width > screenSize.width) {
x = screenPoint.x - tooltipSize.width - OFFSET_X;
}
if (y + tooltipSize.height > screenSize.height) {
y = screenPoint.y - tooltipSize.height - OFFSET_Y;
}
if (x < 0) {
x = 0;
}
if (y < 0) {
y = 0;
}
}
tooltipWindow.setLocation(x, y);
}
/**
* Hides the tooltip.
*/
public void hideTooltip() {
if (tooltipWindow != null) {
tooltipWindow.setVisible(false);
}
currentText = null;
}
public boolean isVisible() {
return tooltipWindow != null && tooltipWindow.isVisible();
}
/**
* Disposes the tooltip window.
*/
public void dispose() {
if (tooltipWindow != null) {
tooltipWindow.dispose();
tooltipWindow = null;
}
}
}
diylc/diylc-swing/src/main/java/org/diylc/swing/plugins/config/ConfigPlugin.java
+12 -9
View File
@@ -134,6 +134,9 @@ public class ConfigPlugin implements IPlugIn {
swingUI.injectMenuAction(
ActionFactory.getInstance().createConfigAction(plugInPort, "Mouse Wheel Zoom", IPlugInPort.WHEEL_ZOOM_KEY,
false), CONFIG_MENU);
swingUI.injectMenuAction(
ActionFactory.getInstance().createConfigAction(plugInPort, "Node Name Tooltips",
IPlugInPort.SHOW_NODE_NAME_TOOLTIPS_KEY, true), CONFIG_MENU);
swingUI.injectMenuAction(
ActionFactory.getInstance().createConfigAction(plugInPort, "Outline Mode", IPlugInPort.OUTLINE_KEY, false),
CONFIG_MENU);
@@ -153,18 +156,22 @@ public class ConfigPlugin implements IPlugIn {
ActionFactory.getInstance().createConfigAction(plugInPort, "Show AI Assistant",
ConfigPlugin.CHATBOT, true), CONFIG_MENU);
swingUI.injectMenuAction(
ActionFactory.getInstance().createConfigAction(plugInPort, "Show Grid", IPlugInPort.SHOW_GRID_KEY, true),
CONFIG_MENU);
swingUI.injectMenuAction(
ActionFactory.getInstance().createConfigAction(plugInPort, "Show Project Explorer",
ConfigPlugin.PROJECT_EXPLORER, false), CONFIG_MENU);
swingUI.injectMenuAction(
ActionFactory.getInstance().createConfigAction(plugInPort, "Show Rulers", IPlugInPort.SHOW_RULERS_KEY, true),
CONFIG_MENU);
swingUI.injectMenuAction(
ActionFactory.getInstance().createConfigAction(plugInPort, "Show Resize Dimensions",
IPlugInPort.SHOW_RESIZE_DIMENSIONS_TOOLTIP_KEY, true), CONFIG_MENU);
swingUI.injectMenuAction(
ActionFactory.getInstance().createConfigAction(plugInPort, "Show Rulers", IPlugInPort.SHOW_RULERS_KEY, true),
CONFIG_MENU);
swingUI.injectSubmenu(SNAP_MENU, IconLoader.GraphEdgeDirected.getIcon(), CONFIG_MENU);
swingUI.injectMenuAction(
ActionFactory.getInstance().createToggleAction(IPlugInPort.SNAP_TO_NONE, IPlugInPort.SNAP_TO_KEY, SNAP_MENU, IPlugInPort.SNAP_TO_DEFAULT),
@@ -175,11 +182,7 @@ public class ConfigPlugin implements IPlugIn {
swingUI.injectMenuAction(
ActionFactory.getInstance().createToggleAction(IPlugInPort.SNAP_TO_COMPONENTS, IPlugInPort.SNAP_TO_KEY, SNAP_MENU, IPlugInPort.SNAP_TO_DEFAULT),
SNAP_MENU);
swingUI.injectMenuAction(
ActionFactory.getInstance().createConfigAction(plugInPort, "Show Grid", IPlugInPort.SHOW_GRID_KEY, true),
CONFIG_MENU);
swingUI.injectMenuAction(
ActionFactory.getInstance()
.createConfigAction(plugInPort, "Sticky Points", IPlugInPort.STICKY_POINTS_KEY, true), CONFIG_MENU);