Resize tooltip (#986)

* resize tooltip

* Fix blank board area rendering

* Fixes

* translations

* Add length

* Update update.xml

diylc/diylc-swing/src/main/java/org/diylc/swing/plugins/canvas/CanvasPlugin.java

@@ -41,6 +41,7 @@ import org.apache.log4j.Logger;
 import org.diylc.appframework.miscutils.IConfigListener;
 import org.diylc.appframework.miscutils.IConfigurationManager;
 import org.diylc.appframework.miscutils.Utils;
+import org.diylc.core.measures.ResizeDimensions;
 import org.diylc.swingframework.ruler.IRulerListener;
 import org.diylc.swingframework.ruler.Ruler.InchSubdivision;
 import org.diylc.swingframework.ruler.RulerScrollPane;
@@ -53,7 +54,6 @@ import org.diylc.common.BadPositionException;
 import org.diylc.common.EventType;
 import org.diylc.common.IPlugIn;
 import org.diylc.common.IPlugInPort;
-import org.diylc.core.IDIYComponent;
 import org.diylc.core.measures.Size;
 import org.diylc.core.measures.SizeUnit;
 import org.diylc.presenter.Presenter;
@@ -68,6 +68,8 @@ public class CanvasPlugin implements IPlugIn{
   private RulerScrollPane scrollPane;
   private CanvasPanel canvasPanel;
   private ComponentPopupMenu popupMenu;
+  private ResizeInfoTooltip resizeInfoTooltip;
+  private boolean resizingInProgress = false;
 
   private IPlugInPort plugInPort;
   private ISwingUI swingUI;
@@ -193,6 +195,7 @@ public class CanvasPlugin implements IPlugIn{
   public CanvasPanel getCanvasPanel() {
     if (canvasPanel == null) {
       canvasPanel = new CanvasPanel(plugInPort, configManager);
+      resizeInfoTooltip = new ResizeInfoTooltip(canvasPanel, configManager);
       canvasPanel.addMouseListener(new MouseAdapter() {
 
         private MouseEvent pressedEvent;
@@ -277,6 +280,15 @@ public class CanvasPlugin implements IPlugIn{
               e.isShiftDown(), e.isAltDown()));
           plugInPort.mouseMoved(e.getPoint(), Utils.isMac() ? e.isMetaDown() : e.isControlDown(),
               e.isShiftDown(), e.isAltDown());
+          
+          // Update tooltip position if resizing is in progress and tooltip is enabled, otherwise hide it
+          if (resizeInfoTooltip != null) {
+            if (resizingInProgress && configManager.readBoolean(IPlugInPort.SHOW_RESIZE_DIMENSIONS_TOOLTIP_KEY, true)) {
+              resizeInfoTooltip.updatePosition(e.getPoint());
+            } else {
+              resizeInfoTooltip.hideTooltip();
+            }
+          }
         }
       });
       
@@ -505,11 +517,13 @@ public class CanvasPlugin implements IPlugIn{
         canvasPanel.repaint();
         // Refresh selection bounds after we're done with painting to ensure we have traced the
         // component areas
+        boolean panToSelection = params.length > 0 && Boolean.TRUE.equals(params[0]);
+        this.resizingInProgress = params.length > 1 && Boolean.TRUE.equals(params[1]);
         SwingUtilities.invokeLater(new Runnable() {
 
           @Override
           public void run() {
-            if (params.length > 0 && Boolean.TRUE.equals(params[0])) {
+            if (panToSelection) {
               Rectangle2D selectionBounds = plugInPort.getSelectionBounds(true);
               if (selectionBounds != null) {
                 Rectangle visibleRect = scrollPane.getVisibleRect();
@@ -519,8 +533,28 @@ public class CanvasPlugin implements IPlugIn{
                     );
               }
             }
-            if (configManager.readBoolean(IPlugInPort.SHOW_RULERS_KEY, true))
+            if (configManager.readBoolean(IPlugInPort.SHOW_RULERS_KEY, true)) {
               scrollPane.setSelectionRectangle(plugInPort.getSelectionBounds(true));
+            }
+            if (CanvasPlugin.this.resizingInProgress && getCanvasPanel().getMousePosition() != null) {
+              // Only show tooltip if enabled in configuration
+              if (configManager.readBoolean(IPlugInPort.SHOW_RESIZE_DIMENSIONS_TOOLTIP_KEY, true)) {
+                ResizeDimensions resizeDimensions = plugInPort.getResizeDimensions();
+                if (resizeInfoTooltip != null) {
+                  resizeInfoTooltip.update(resizeDimensions, getCanvasPanel().getMousePosition());
+                }
+              } else {
+                // Hide tooltip if disabled
+                if (resizeInfoTooltip != null) {
+                  resizeInfoTooltip.hideTooltip();
+                }
+              }
+            } else {
+              // Hide tooltip when not resizing
+              if (resizeInfoTooltip != null) {
+                resizeInfoTooltip.hideTooltip();
+              }
+            }
           }
         });
         break;
@@ -563,25 +597,4 @@ public class CanvasPlugin implements IPlugIn{
     double extraSpace = CanvasPlugin.this.plugInPort.getExtraSpace();
     getScrollPane().setZeroLocation(new Point2D.Double(extraSpace, extraSpace));
   }
-  
-  class LockAction extends AbstractAction {
-
-    private static final long serialVersionUID = 1L;
-
-    private IDIYComponent<?> component;
-    private boolean locked;
-
-    public LockAction(IDIYComponent<?> component, boolean locked) {
-      super();
-      this.locked = locked;
-      this.component = component;
-      putValue(AbstractAction.NAME, component.getName());      
-    }
-
-    @Override
-    public void actionPerformed(ActionEvent e) {
-     plugInPort.lockComponent(component, locked); 
-    } 
-  
-  }
 }

diylc/diylc-swing/src/main/java/org/diylc/swing/plugins/canvas/ResizeInfoTooltip.java

@@ -0,0 +1,225 @@
+/*
+ * 
+ * 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 java.text.DecimalFormat;
+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;
+import org.diylc.core.measures.ResizeDimensions;
+import org.diylc.core.measures.Size;
+
+/**
+ * A lightweight tooltip window that displays resize dimensions and tracks the mouse cursor.
+ */
+public class ResizeInfoTooltip {
+
+  private static final int OFFSET_X = 16;
+  private static final int OFFSET_Y = 16;
+  private static final DecimalFormat SIZE_FORMAT = new DecimalFormat("0.00");
+
+  private JWindow tooltipWindow;
+  private JLabel tooltipLabel;
+  private Component parentComponent;
+  private ResizeDimensions currentDimensions;
+
+  public ResizeInfoTooltip(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 new dimensions and mouse position.
+   */
+  public void update(ResizeDimensions dimensions, Point mousePosition) {
+    this.currentDimensions = dimensions;
+
+    if (dimensions == null || mousePosition == null) {
+      hideTooltip();
+      return;
+    }
+
+    if (tooltipWindow == null) {
+      initializeTooltip();
+      if (tooltipWindow == null) {
+        return;
+      }
+    }
+
+    // Format the dimensions
+    String text = formatDimensions(dimensions);
+    tooltipLabel.setText(text);
+    tooltipLabel.setPreferredSize(null); // Reset to calculate preferred size
+    tooltipWindow.pack();
+
+    // Position the tooltip near the mouse cursor
+    updateTooltipPosition(mousePosition);
+    tooltipWindow.setVisible(true);
+  }
+
+  /**
+   * Updates the tooltip position based on the current mouse position.
+   */
+  public void updatePosition(Point mousePosition) {
+    if (currentDimensions != 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);
+  }
+
+  private String formatDimensions(ResizeDimensions dimensions) {
+    StringBuilder sb = new StringBuilder("<html>");
+    
+    // Format width
+    Size width = dimensions.width();
+    String widthUnit = width.getUnit().toString();
+    sb.append(String.format("W: %s %s", SIZE_FORMAT.format(width.getValue()), widthUnit));
+    
+    // Format height
+    Size height = dimensions.height();
+    String heightUnit = height.getUnit().toString();
+    sb.append(String.format("<br>H: %s %s", SIZE_FORMAT.format(height.getValue()), heightUnit));
+    
+    // Format length if available
+    Size length = dimensions.length();
+    if (length != null) {
+      String lengthUnit = length.getUnit().toString();
+      sb.append(String.format("<br>L: %s %s", SIZE_FORMAT.format(length.getValue()), lengthUnit));
+    }
+    
+    sb.append("</html>");
+    return sb.toString();
+  }
+
+  /**
+   * Hides the tooltip.
+   */
+  public void hideTooltip() {
+    if (tooltipWindow != null) {
+      tooltipWindow.setVisible(false);
+    }
+    currentDimensions = null;
+  }
+
+  /**
+   * 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

@@ -158,6 +158,10 @@ public class ConfigPlugin implements IPlugIn {
         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.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),

diylc/diylc-swing/src/main/resources/lang/Deutsch.txt

@@ -363,6 +363,7 @@ Shaft Up|Achse nach oben
 Shape|Form 
 Shapes|Formen 
 Show Grid|Raster anzeigen
+Show Resize Dimensions|Größenänderungsdimensionen anzeigen
 Show Rulers|Lineale anzeigen
 Shroud|Wanne
 Shrouded|Abgeschirmt

diylc/diylc-swing/src/main/resources/lang/English.txt

@@ -352,6 +352,7 @@ Shape
 Shapes
 Show Bracket
 Show Grid
+Show Resize Dimensions
 Show Rulers
 Shroud
 Shrouded

diylc/diylc-swing/src/main/resources/lang/Español.txt

@@ -351,6 +351,7 @@ Shaft Up|Eje Arriba
 Shape|Forma
 Shapes|Formas
 Show Grid|Mostrar Cuadrícula
+Show Resize Dimensions|Mostrar Dimensiones de Redimensionamiento
 Show Rulers|Mostrar Reglas
 Shroud|Envoltura
 Shrouded|Con Envoltura

diylc/diylc-swing/src/main/resources/lang/Français.txt

@@ -348,6 +348,7 @@ Shaft Up|Tige vers le haut
 Shape|Forme
 Shapes|Formes
 Show Grid|Afficher la grille
+Show Resize Dimensions|Afficher les dimensions de redimensionnement
 Show Rulers|Afficher les règles
 Shroud|Enveloppe
 Shrouded|Enveloppé

diylc/diylc-swing/src/main/resources/lang/Italiano.txt

@@ -363,6 +363,7 @@ Shaft Up|Shaft Up
 Shape|forma
 Shapes|forme
 Show Grid|Mostra griglia
+Show Resize Dimensions|Mostra dimensioni ridimensionamento
 Show Rulers|Mostra righelli
 Shroud|Copri
 Shrouded|Coperto

diylc/diylc-swing/src/main/resources/lang/Nederlands.txt

@@ -363,6 +363,7 @@ Shaft Up|As omhoog
 Shape|Vorm
 Shapes|Vormen
 Show Grid|Raster weergeven
+Show Resize Dimensions|Grootte-aanpassingsafmetingen weergeven
 Show Rulers|Linialen weergeven
 Shroud|Beschermrand
 Shrouded|Afgeschermd

diylc/diylc-swing/src/main/resources/lang/Português.txt

@@ -351,6 +351,7 @@ Shaft Up|Jogar para cima
 Shape|Forma
 Shapes|Formas
 Show Grid|Mostrar Grid
+Show Resize Dimensions|Mostrar Dimensões de Redimensionamento
 Show Rulers|Mostrar Réguas
 Shroud|Envoltura
 Shrouded|Envolto

diylc/diylc-swing/src/main/resources/lang/Srpski.txt

@@ -344,6 +344,7 @@ Shaft Up|Osovina Gore
 Shape|Oblik
 Shapes|Oblici
 Show Grid|Prikaz Rešetke
+Show Resize Dimensions|Prikaz Dimenzija Promene Veličine
 Show Rulers|Prikaz Lenjira
 Shroud|Kućište
 Shrouded|Sa Kućištem

diylc/diylc-swing/src/main/resources/lang/हिंदी.txt

@@ -352,6 +352,7 @@ Shape|आकार
 Shapes|आकार
 Show Bracket|ब्रैकेट दिखाएं
 Show Grid|ग्रिड दिखाएं
+Show Resize Dimensions|आकार बदलने के आयाम दिखाएं
 Show Rulers|रूलर दिखाएं
 Shroud|श्राउड
 Shrouded|श्राउडेड

diylc/diylc-swing/src/main/resources/lang/简体中文.txt

@@ -352,6 +352,7 @@ Shape|形状
 Shapes|形状
 Show Bracket|显示支架
 Show Grid|显示网格
+Show Resize Dimensions|显示调整大小尺寸
 Show Rulers|显示标尺
 Shroud|护罩
 Shrouded|带护罩