From bbc701f0816bfd9bbe754bb69e741d0823294593 Mon Sep 17 00:00:00 2001
From: zack <zack@fanruan.com>
Date: Thu, 17 Apr 2025 17:28:46 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BB=A3=E7=A0=81=E8=B4=A8=E9=87=8F?=
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---
 .../icontainer/UIEastResizableContainer.java  | 31 +++++++++++++++++++
 .../mainframe/EastRegionContainerPane.java    |  4 ++-
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/designer-base/src/main/java/com/fr/design/gui/icontainer/UIEastResizableContainer.java b/designer-base/src/main/java/com/fr/design/gui/icontainer/UIEastResizableContainer.java
index af7bfc9672..acdec476ec 100644
--- a/designer-base/src/main/java/com/fr/design/gui/icontainer/UIEastResizableContainer.java
+++ b/designer-base/src/main/java/com/fr/design/gui/icontainer/UIEastResizableContainer.java
@@ -359,9 +359,21 @@ public class UIEastResizableContainer extends JPanel {
         }
     }
 
+    /**
+     * This inner class handles mouse events for resizing the container
+     * by dragging the left edge of the right pane.
+     */
     public class ResizeListener extends MouseAdapter implements MouseMotionListener {
+
+        // Stores the point where the mouse was initially pressed
         private Point mouseDownCompCoords;
 
+        /**
+         * This method is called when the mouse is moved within the component.
+         * It changes the cursor to indicate that resizing is possible.
+         *
+         * @param e The MouseEvent.
+         */
         @Override
         public void mouseMoved(MouseEvent e) {
             if (e.getX() <= RESIZE_RANGE) {
@@ -371,6 +383,12 @@ public class UIEastResizableContainer extends JPanel {
             }
         }
 
+        /**
+         * This method is called when the mouse is pressed near the left edge.
+         * If within the resize area, the mouse position is stored for dragging.
+         *
+         * @param e The MouseEvent.
+         */
         @Override
         public void mousePressed(MouseEvent e) {
             if (e.getX() <= RESIZE_RANGE) {
@@ -378,11 +396,18 @@ public class UIEastResizableContainer extends JPanel {
             }
         }
 
+        /**
+         * This method is called when the mouse is dragged after being pressed
+         * near the left edge. It adjusts the container width based on drag distance.
+         *
+         * @param e The MouseEvent.
+         */
         @Override
         public void mouseDragged(MouseEvent e) {
             if (mouseDownCompCoords != null && getCursor().equals(westResizeCursor)) {
                 Point currCoords = e.getLocationOnScreen();
                 int newWidth = containerWidth - (currCoords.x - mouseDownCompCoords.x);
+                // Update container width within allowed range
                 if (newWidth >= MIN_CONTAINER_WIDTH && newWidth <= MAX_CONTAINER_WIDTH) {
                     containerWidth = newWidth;
                     mouseDownCompCoords = currCoords;
@@ -391,6 +416,12 @@ public class UIEastResizableContainer extends JPanel {
             }
         }
 
+        /**
+         * This method is called when the mouse button is released.
+         * It clears the stored starting point for dragging.
+         *
+         * @param e The MouseEvent.
+         */
         @Override
         public void mouseReleased(MouseEvent e) {
             mouseDownCompCoords = null;
diff --git a/designer-base/src/main/java/com/fr/design/mainframe/EastRegionContainerPane.java b/designer-base/src/main/java/com/fr/design/mainframe/EastRegionContainerPane.java
index 26d2f9c061..90840c1bd3 100644
--- a/designer-base/src/main/java/com/fr/design/mainframe/EastRegionContainerPane.java
+++ b/designer-base/src/main/java/com/fr/design/mainframe/EastRegionContainerPane.java
@@ -1424,7 +1424,9 @@ public class EastRegionContainerPane extends UIEastResizableContainer {
             addMouseMotionListener(new MouseMotionListener() {
                 @Override
                 public void mouseDragged(MouseEvent e) {
-                    if (mouseDownCompCoords == null) return;
+                    if (mouseDownCompCoords == null) {
+                        return;
+                    }
 
                     Rectangle bounds = getBounds();
                     Point currCoords = e.getLocationOnScreen();