feat(vqt6): 新增 QTreeWidget/QTreeWidgetItem 桥接与树统计助手

vqt6/_bridge_widgets.cpp

@@ -28,6 +28,7 @@
 #include <QFormLayout>
 #include <QStackedWidget>
 #include <QTabWidget>
+#include <QTreeWidget>
 #include <QMenuBar>
 #include <QMenu>
 #include <QAction>
@@ -42,6 +43,7 @@
 #include <QStringList>
 #include <QFont>
 #include <QColor>
+#include <QVariant>
 #include <QPixmap>
 #include <QIcon>
 #include <QCursor>
@@ -768,6 +770,11 @@ extern "C" VQT6_API void vqt6_qplaintextedit_append_utf8(void* pte, const char*
     static_cast<QPlainTextEdit*>(pte)->appendPlainText(QString::fromUtf8(utf8));
 }
 
+extern "C" VQT6_API void vqt6_qplaintextedit_set_plain_text_utf8(void* pte, const char* utf8) {
+    if (pte == nullptr || utf8 == nullptr) return;
+    static_cast<QPlainTextEdit*>(pte)->setPlainText(QString::fromUtf8(utf8));
+}
+
 extern "C" VQT6_API void vqt6_qwidget_set_stylesheet_utf8(void* widget, const char* utf8) {
     if (widget == nullptr || utf8 == nullptr) return;
     static_cast<QWidget*>(widget)->setStyleSheet(QString::fromUtf8(utf8));
@@ -1766,6 +1773,144 @@ extern "C" VQT6_API void* vqt6_qfiledialog_get_open_file_names(void* parent, voi
     ));
 }
 
+// ============================================================
+// QTreeWidget / QTreeWidgetItem
+// ============================================================
+extern "C" VQT6_API void* vqt6_qtreewidget_create(void) {
+    return new QTreeWidget();
+}
+
+extern "C" VQT6_API void* vqt6_qtreewidget_create_with_parent(void* parent) {
+    if (parent == nullptr) return nullptr;
+    return new QTreeWidget(static_cast<QWidget*>(parent));
+}
+
+extern "C" VQT6_API void vqt6_qtreewidget_add_top_level_item(void* tw, void* item) {
+    if (tw == nullptr || item == nullptr) return;
+    static_cast<QTreeWidget*>(tw)->addTopLevelItem(static_cast<QTreeWidgetItem*>(item));
+}
+
+extern "C" VQT6_API void vqt6_qtreewidget_insert_top_level_item(void* tw, int index, void* item) {
+    if (tw == nullptr || item == nullptr) return;
+    static_cast<QTreeWidget*>(tw)->insertTopLevelItem(index, static_cast<QTreeWidgetItem*>(item));
+}
+
+extern "C" VQT6_API int vqt6_qtreewidget_top_level_item_count(void* tw) {
+    if (tw == nullptr) return 0;
+    return static_cast<QTreeWidget*>(tw)->topLevelItemCount();
+}
+
+extern "C" VQT6_API void* vqt6_qtreewidget_top_level_item(void* tw, int index) {
+    if (tw == nullptr) return nullptr;
+    return static_cast<QTreeWidget*>(tw)->topLevelItem(index);
+}
+
+extern "C" VQT6_API void* vqt6_qtreewidget_current_item(void* tw) {
+    if (tw == nullptr) return nullptr;
+    return static_cast<QTreeWidget*>(tw)->currentItem();
+}
+
+extern "C" VQT6_API void vqt6_qtreewidget_expand_all(void* tw) {
+    if (tw == nullptr) return;
+    static_cast<QTreeWidget*>(tw)->expandAll();
+}
+
+extern "C" VQT6_API void vqt6_qtreewidget_collapse_all(void* tw) {
+    if (tw == nullptr) return;
+    static_cast<QTreeWidget*>(tw)->collapseAll();
+}
+
+extern "C" VQT6_API void vqt6_qtreewidget_set_header_hidden(void* tw, int hidden) {
+    if (tw == nullptr) return;
+    static_cast<QTreeWidget*>(tw)->setHeaderHidden(hidden != 0);
+}
+
+extern "C" VQT6_API void vqt6_qtreewidget_set_column_count(void* tw, int count) {
+    if (tw == nullptr) return;
+    static_cast<QTreeWidget*>(tw)->setColumnCount(count);
+}
+
+extern "C" VQT6_API void vqt6_qtreewidget_set_item_expanded(void* tw, void* item, int expanded) {
+    if (item == nullptr) return;
+    (void)tw;
+    static_cast<QTreeWidgetItem*>(item)->setExpanded(expanded != 0);
+}
+
+extern "C" VQT6_API void* vqt6_qtreewidgetitem_create(void* text) {
+    QTreeWidgetItem* it = new QTreeWidgetItem();
+    if (text != nullptr) it->setText(0, *static_cast<QString*>(text));
+    return it;
+}
+
+extern "C" VQT6_API void vqt6_qtreewidgetitem_add_child(void* item, void* child) {
+    if (item == nullptr || child == nullptr) return;
+    static_cast<QTreeWidgetItem*>(item)->addChild(static_cast<QTreeWidgetItem*>(child));
+}
+
+extern "C" VQT6_API int vqt6_qtreewidgetitem_child_count(void* item) {
+    if (item == nullptr) return 0;
+    return static_cast<QTreeWidgetItem*>(item)->childCount();
+}
+
+extern "C" VQT6_API void* vqt6_qtreewidgetitem_child(void* item, int index) {
+    if (item == nullptr) return nullptr;
+    return static_cast<QTreeWidgetItem*>(item)->child(index);
+}
+
+extern "C" VQT6_API void vqt6_qtreewidgetitem_set_text(void* item, void* text) {
+    if (item == nullptr || text == nullptr) return;
+    static_cast<QTreeWidgetItem*>(item)->setText(0, *static_cast<QString*>(text));
+}
+
+extern "C" VQT6_API void* vqt6_qtreewidgetitem_text(void* item) {
+    if (item == nullptr) return nullptr;
+    return new QString(static_cast<QTreeWidgetItem*>(item)->text(0));
+}
+
+extern "C" VQT6_API void vqt6_qtreewidgetitem_set_checkable(void* item, int checkable) {
+    if (item == nullptr) return;
+    QTreeWidgetItem* it = static_cast<QTreeWidgetItem*>(item);
+    Qt::ItemFlags f = it->flags();
+    if (checkable != 0) f |= Qt::ItemIsUserCheckable;
+    else f &= ~Qt::ItemIsUserCheckable;
+    it->setFlags(f);
+}
+
+extern "C" VQT6_API void vqt6_qtreewidgetitem_set_check_state(void* item, int state) {
+    if (item == nullptr) return;
+    Qt::CheckState cs = Qt::Unchecked;
+    if (state == 1) cs = Qt::PartiallyChecked;
+    else if (state == 2) cs = Qt::Checked;
+    static_cast<QTreeWidgetItem*>(item)->setCheckState(0, cs);
+}
+
+extern "C" VQT6_API int vqt6_qtreewidgetitem_check_state(void* item) {
+    if (item == nullptr) return 0;
+    return static_cast<int>(static_cast<QTreeWidgetItem*>(item)->checkState(0));
+}
+
+extern "C" VQT6_API void vqt6_qtreewidgetitem_set_expanded(void* item, int expanded) {
+    if (item == nullptr) return;
+    static_cast<QTreeWidgetItem*>(item)->setExpanded(expanded != 0);
+}
+
+extern "C" VQT6_API int vqt6_qtreewidgetitem_is_expanded(void* item) {
+    if (item == nullptr) return 0;
+    return static_cast<QTreeWidgetItem*>(item)->isExpanded() ? 1 : 0;
+}
+
+extern "C" VQT6_API void vqt6_qtreewidgetitem_set_data_int(void* item, int value) {
+    if (item == nullptr) return;
+    static_cast<QTreeWidgetItem*>(item)->setData(0, Qt::UserRole, QVariant(value));
+}
+
+extern "C" VQT6_API int vqt6_qtreewidgetitem_data_int(void* item) {
+    if (item == nullptr) return 0;
+    bool ok = false;
+    int v = static_cast<QTreeWidgetItem*>(item)->data(0, Qt::UserRole).toInt(&ok);
+    return ok ? v : 0;
+}
+
 // ============================================================
 // 信号连接（Qt 信号 → Viper 回调 vqt6_slot_callback_t）
 // 模式：vqt6_signal_register 分配 slot_id → Qt lambda 连接信号 →
@@ -1900,3 +2045,23 @@ extern "C" VQT6_API void vqt6_qaction_connect_triggered(void* action, vqt6_slot_
         vqt6_trigger_slot(slot_id);
     });
 }
+
+extern "C" VQT6_API void vqt6_qtreewidget_connect_item_changed(void* tw, vqt6_slot_callback_t cb, void* user_data) {
+    if (tw == nullptr) return;
+    int slot_id = vqt6_signal_register(cb, user_data);
+    if (slot_id < 0) return;
+    QObject::connect(static_cast<QTreeWidget*>(tw), &QTreeWidget::itemChanged,
+                     static_cast<QTreeWidget*>(tw), [slot_id](QTreeWidgetItem*, int) {
+        vqt6_trigger_slot(slot_id);
+    });
+}
+
+extern "C" VQT6_API void vqt6_qtreewidget_connect_item_clicked(void* tw, vqt6_slot_callback_t cb, void* user_data) {
+    if (tw == nullptr) return;
+    int slot_id = vqt6_signal_register(cb, user_data);
+    if (slot_id < 0) return;
+    QObject::connect(static_cast<QTreeWidget*>(tw), &QTreeWidget::itemClicked,
+                     static_cast<QTreeWidget*>(tw), [slot_id](QTreeWidgetItem*, int) {
+        vqt6_trigger_slot(slot_id);
+    });
+}