From 8616776a2467c9a340e37413be8dd51f32f5cc17 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=99=BE=E5=93=A5?= <anonymous@linuxacme.com>
Date: Tue, 28 Apr 2026 19:03:49 +0800
Subject: [PATCH] =?UTF-8?q?v1.1.4:=20=E4=BF=AE=E5=A4=8D=E6=8B=96=E6=8B=BD?=
 =?UTF-8?q?=20JSON=20=E6=96=87=E4=BB=B6=E6=89=93=E5=BC=80=E5=B7=A5?=
 =?UTF-8?q?=E7=A8=8B=E5=8A=9F=E8=83=BD?=
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【Bug 修复】
- setAcceptDrops(true) —— 之前从未设置，导致所有拖拽事件直接被 Qt 忽略
- 新增 dragMoveEvent 覆写 —— 拖拽移动过程也要 accept，否则 dropEvent 不会触发
- 禁用所有子控件的拖拽接收 —— QTreeWidget/QListWidget/QLineEdit
  等默认接受拖拽，会先拦截事件导致 MainWindow 收不到
- 同时对 viewport() 禁用拖拽，防止内部滚动区域拦截
---
 src/mainwindow.cpp | 38 ++++++++++++++++++++++++++++++++++++++
 src/mainwindow.h   |  1 +
 2 files changed, 39 insertions(+)

diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 63914be..feb52dc 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -19,6 +19,7 @@
 #include <QDir>
 #include <QScrollBar>
 #include <QDragEnterEvent>
+#include <QDragMoveEvent>
 #include <QDropEvent>
 #include <QMimeData>
 
@@ -30,6 +31,9 @@ MainWindow::MainWindow(QWidget *parent)
     config = new ProjectConfig(this);
     cmakeGenerator = new CMakeGenerator(this);
     
+    // ★ 启用拖拽
+    setAcceptDrops(true);
+    
     setupUI();
     setupConnections();
     updateWindowTitle();
@@ -276,6 +280,22 @@ void MainWindow::setupUI()
     
     // 状态栏
     statusBar()->showMessage("就绪");
+    
+    // ★ 禁用子控件的拖拽，让所有拖拽事件由 MainWindow 统一处理
+    sourceTree->setAcceptDrops(false);
+    sourceTree->viewport()->setAcceptDrops(false);
+    includeDirList->setAcceptDrops(false);
+    includeDirList->viewport()->setAcceptDrops(false);
+    libraryList->setAcceptDrops(false);
+    libraryList->viewport()->setAcceptDrops(false);
+    defineList->setAcceptDrops(false);
+    defineList->viewport()->setAcceptDrops(false);
+    optionList->setAcceptDrops(false);
+    optionList->viewport()->setAcceptDrops(false);
+    projectNameEdit->setAcceptDrops(false);
+    compilerPathEdit->setAcceptDrops(false);
+    assemblerPathEdit->setAcceptDrops(false);
+    linkerPathEdit->setAcceptDrops(false);
 }
 
 void MainWindow::setupConnections()
@@ -350,9 +370,27 @@ void MainWindow::dragEnterEvent(QDragEnterEvent *event)
             if (file.endsWith(".json", Qt::CaseInsensitive)) {
                 event->acceptProposedAction();
                 statusBar()->showMessage("📂 释放鼠标打开工程：" + file, 3000);
+                return;
             }
         }
     }
+    event->ignore();
+}
+
+void MainWindow::dragMoveEvent(QDragMoveEvent *event)
+{
+    // 拖拽移动时也要接受，否则 Qt 不会触发 dropEvent
+    if (event->mimeData()->hasUrls()) {
+        QList<QUrl> urls = event->mimeData()->urls();
+        if (!urls.isEmpty()) {
+            QString file = urls.first().toLocalFile();
+            if (file.endsWith(".json", Qt::CaseInsensitive)) {
+                event->acceptProposedAction();
+                return;
+            }
+        }
+    }
+    event->ignore();
 }
 
 void MainWindow::dropEvent(QDropEvent *event)
diff --git a/src/mainwindow.h b/src/mainwindow.h
index c0a6e78..fc4b8cd 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -69,6 +69,7 @@ private slots:
 
 protected:
     void dragEnterEvent(QDragEnterEvent *event) override;
+    void dragMoveEvent(QDragMoveEvent *event) override;
     void dropEvent(QDropEvent *event) override;
 
 private: