fix(theme): 复选指示器全局统一(清晰可见,规避Fusion浅底过淡) + 失焦保持选中,移除对象树本地重复样式

src/app/Theme.cpp

@@ -1,5 +1,7 @@
 #include "Theme.hpp"
 
+#include "Glyphs.hpp"
+
 #include <QApplication>
 #include <QColor>
 #include <QFont>
@@ -155,6 +157,11 @@ QTreeView::item:selected, QListView::item:selected {
     background: {{bg/selected}};
     color: {{text/primary}};
 }
+QTreeWidget::item:selected:!active, QListWidget::item:selected:!active,
+QTreeView::item:selected:!active, QListView::item:selected:!active {
+    background: {{bg/selected}};
+    color: {{text/primary}};
+}
 /* 注意：不要给 QTreeView::branch 设 background——一旦改写 branch，Qt 会停止绘制
    默认的展开/折叠箭头（与 indicator 同类陷阱），父节点折叠图标会消失。 */
 
@@ -449,10 +456,34 @@ ads--CDockWidgetTab[activeTab="true"] QLabel {
 }
 )QSS";
 
+// 全局复选指示器：用 writeCheckboxIcon 生成清晰复选框 PNG（未选=明显边框空心框，
+// 选中=强调色填充+白勾），统一作用于 QCheckBox 与 树/列表的勾选指示器。规避 Fusion
+// 原生复选框在浅底下边框过淡看不清的问题——全 UI 一套，避免逐控件打补丁。
+QString indicatorQss(bool dark)
+{
+    const QColor border = QColor(tokenHex("border/strong", dark));
+    const QColor boxBg = QColor(tokenHex("bg/panel", dark));
+    const QColor accent = QColor(tokenHex("accent/primary", dark));
+    const QString tag = dark ? QStringLiteral("gd") : QStringLiteral("gl");  // 全局缓存标签
+    const QString off = geopro::app::writeCheckboxIcon(false, border, boxBg, Qt::white, tag);
+    const QString on = geopro::app::writeCheckboxIcon(true, accent, accent, Qt::white, tag);
+    return QStringLiteral(
+               "QCheckBox::indicator, QTreeView::indicator, QListView::indicator,"
+               "QTreeWidget::indicator, QListWidget::indicator { width:16px; height:16px; }"
+               "QCheckBox::indicator:unchecked, QTreeView::indicator:unchecked,"
+               "QListView::indicator:unchecked, QTreeWidget::indicator:unchecked,"
+               "QListWidget::indicator:unchecked { image:url(%1); }"
+               "QCheckBox::indicator:checked, QTreeView::indicator:checked,"
+               "QListView::indicator:checked, QTreeWidget::indicator:checked,"
+               "QListWidget::indicator:checked { image:url(%2); }")
+        .arg(off, on);
+}
+
 // 当前模式的全局 QSS。
 QString styleSheetForMode(bool /*dark*/)
 {
-    return fillTokens(QString::fromUtf8(kStyleSheet));
+    const bool dark = isDarkTheme();
+    return fillTokens(QString::fromUtf8(kStyleSheet)) + indicatorQss(dark);
 }
 
 // 调色板同样取自 ElaTheme，让无 QSS 覆盖处的标准控件也与外壳一致。

src/app/panels/ObjectTreePanel.cpp

@@ -40,30 +40,6 @@ ObjectTreePanel::ObjectTreePanel(QWidget* parent) : QWidget(parent) {
     tree_->setHeaderHidden(true);
     tree_->setIndentation(14);  // 收紧缩进
 
-    // 清晰复选框：自绘 PNG（未选=明显边框空心框，选中=强调色底+白勾），明暗各一套、切换重绘。
-    // 规避 Fusion 原生复选框在浅底下边框过淡、看不清的问题。
-    auto applyCheckboxStyle = [this]() {
-        const bool dark = geopro::app::isDarkTheme();
-        const QColor border = geopro::app::tokenColor("border/strong");   // 未选复选框描边（规范§6.12）
-        const QColor boxBg = geopro::app::tokenColor("bg/panel");
-        const QColor accent = geopro::app::tokenColor("accent/primary");  // 选中填充
-        const QString tag = dark ? QStringLiteral("d") : QStringLiteral("l");
-        const QString off = geopro::app::writeCheckboxIcon(false, border, boxBg, Qt::white, tag);
-        const QString on = geopro::app::writeCheckboxIcon(true, accent, accent, Qt::white, tag);
-        // 选中底/字取语义令牌，与全局树/列表选中一致（规范§6.1/§10）。
-        const QString selBg = geopro::app::token("bg/selected");
-        const QString selFg = geopro::app::token("text/primary");
-        tree_->setStyleSheet(QStringLiteral("QTreeView::indicator{ width:16px; height:16px; }"
-                                            "QTreeView::indicator:unchecked{ image:url(%1); }"
-                                            "QTreeView::indicator:checked{ image:url(%2); }"
-                                            "QTreeView::item:selected{ background:%3; color:%4; }"
-                                            "QTreeView::item:selected:!active{ background:%3; color:%4; }")
-                                 .arg(off, on, selBg, selFg));
-    };
-    applyCheckboxStyle();
-    QObject::connect(&ThemeManager::instance(), &ThemeManager::changed, tree_,
-                     [applyCheckboxStyle]() { applyCheckboxStyle(); });
-
     lay->addWidget(tree_, 1);
 
     hint_ = new QLabel(QStringLiteral("正在加载对象…"), this);