功能：新增置顶的桌面连接设置对话框

变更详情：新增桌面连接设置对话框（置顶显示）

terminal/kiosk-shell/src/desktop_settings_dialog.cpp

@@ -0,0 +1,143 @@
+#include "desktop_settings_dialog.h"
+
+#include <QComboBox>
+#include <QDialogButtonBox>
+#include <QFormLayout>
+#include <QLabel>
+#include <QLineEdit>
+#include <QPushButton>
+#include <QVBoxLayout>
+
+#include <cstdio>
+
+#include "desktop_store.h"
+
+namespace vdi {
+
+DesktopSettingsDialog::DesktopSettingsDialog(std::vector<DesktopInfo> desktops,
+                                             const QString& selectId, QWidget* parent)
+    : QDialog(parent), desktops_(std::move(desktops)) {
+    setWindowTitle(QStringLiteral("桌面连接设置"));
+    setMinimumWidth(560);
+    // Kiosk 主窗口是全屏窗口，必须置顶否则对话框会被完全遮挡
+    setWindowFlags(windowFlags() | Qt::WindowStaysOnTopHint);
+
+    auto* root = new QVBoxLayout(this);
+    root->setSpacing(14);
+
+    auto* hint = new QLabel(
+        QStringLiteral("为每张桌面配置连接参数。地址支持 IP、域名或 VPN 隧道地址；"
+                       "地址留空表示待分配，卡片将不可连接。"),
+        this);
+    hint->setWordWrap(true);
+    hint->setStyleSheet(QStringLiteral("color: #8a94a6;"));
+    root->addWidget(hint);
+
+    auto* form = new QFormLayout();
+    form->setHorizontalSpacing(14);
+    form->setVerticalSpacing(12);
+
+    comboDesktop_ = new QComboBox(this);
+    for (const DesktopInfo& d : desktops_) {
+        comboDesktop_->addItem(d.name, d.id);
+    }
+    form->addRow(QStringLiteral("桌面"), comboDesktop_);
+
+    comboProtocol_ = new QComboBox(this);
+    comboProtocol_->addItem(QStringLiteral("Moonlight"), QStringLiteral("moonlight"));
+    comboProtocol_->addItem(QStringLiteral("RDP"), QStringLiteral("rdp"));
+    form->addRow(QStringLiteral("协议"), comboProtocol_);
+
+    editEndpoint_ = new QLineEdit(this);
+    editEndpoint_->setPlaceholderText(QStringLiteral("例如 192.168.1.70 或 VPN 隧道地址"));
+    form->addRow(QStringLiteral("服务器地址"), editEndpoint_);
+
+    editApp_ = new QLineEdit(this);
+    editApp_->setPlaceholderText(QStringLiteral("Sunshine 应用名，通常为 Desktop"));
+    form->addRow(QStringLiteral("应用名（Moonlight）"), editApp_);
+
+    comboResolution_ = new QComboBox(this);
+    const char* resolutions[] = {"1920x1080", "2560x1440", "1920x1440", "3840x2160", "1280x720"};
+    for (const char* r : resolutions) {
+        comboResolution_->addItem(QString::fromLatin1(r), QString::fromLatin1(r));
+    }
+    form->addRow(QStringLiteral("分辨率"), comboResolution_);
+
+    comboFps_ = new QComboBox(this);
+    comboFps_->addItem(QStringLiteral("60"), 60);
+    comboFps_->addItem(QStringLiteral("30"), 30);
+    form->addRow(QStringLiteral("帧率"), comboFps_);
+
+    root->addLayout(form);
+
+    auto* buttons = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, this);
+    buttons->button(QDialogButtonBox::Ok)->setText(QStringLiteral("保存"));
+    buttons->button(QDialogButtonBox::Cancel)->setText(QStringLiteral("取消"));
+    root->addWidget(buttons);
+
+    connect(comboDesktop_, QOverload<int>::of(&QComboBox::currentIndexChanged), this,
+            &DesktopSettingsDialog::onDesktopChanged);
+    connect(buttons, &QDialogButtonBox::accepted, this, &DesktopSettingsDialog::onAccepted);
+    connect(buttons, &QDialogButtonBox::rejected, this, &QDialog::reject);
+
+    // 预选指定桌面
+    int index = 0;
+    if (!selectId.isEmpty()) {
+        for (int i = 0; i < comboDesktop_->count(); ++i) {
+            if (comboDesktop_->itemData(i).toString() == selectId) {
+                index = i;
+                break;
+            }
+        }
+    }
+    comboDesktop_->setCurrentIndex(index);
+    loadCurrent();
+}
+
+void DesktopSettingsDialog::onDesktopChanged(int index) {
+    Q_UNUSED(index);
+    loadCurrent();
+}
+
+void DesktopSettingsDialog::loadCurrent() {
+    const QString id = comboDesktop_->currentData().toString();
+    for (const DesktopInfo& d : desktops_) {
+        if (d.id != id) {
+            continue;
+        }
+        loading_ = true;
+        comboProtocol_->setCurrentIndex(d.protocol == Protocol::kRdp ? 1 : 0);
+        editEndpoint_->setText(d.endpoint);
+        editApp_->setText(d.app);
+        int resIndex = comboResolution_->findData(
+            QStringLiteral("%1x%2").arg(d.width).arg(d.height));
+        comboResolution_->setCurrentIndex(resIndex >= 0 ? resIndex : 0);
+        int fpsIndex = comboFps_->findData(d.fps);
+        comboFps_->setCurrentIndex(fpsIndex >= 0 ? fpsIndex : 0);
+        loading_ = false;
+        break;
+    }
+}
+
+void DesktopSettingsDialog::onAccepted() {
+    const QString id = comboDesktop_->currentData().toString();
+    for (DesktopInfo& d : desktops_) {
+        if (d.id != id) {
+            continue;
+        }
+        d.protocol = comboProtocol_->currentData().toString() == QStringLiteral("rdp")
+                         ? Protocol::kRdp
+                         : Protocol::kMoonlight;
+        d.endpoint = editEndpoint_->text().trimmed();
+        d.app = editApp_->text().trimmed();
+        const QString res = comboResolution_->currentData().toString();
+        sscanf(res.toLatin1().constData(), "%dx%d", &d.width, &d.height);
+        d.fps = comboFps_->currentData().toInt();
+        d.state = d.endpoint.isEmpty() ? DesktopState::kUnassigned : DesktopState::kAvailable;
+        DesktopStore::update(d);
+        break;
+    }
+    accept();
+}
+
+}  // namespace vdi