hello world

src/main.cpp

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+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+#include <QDebug>
+
+int main(int argc, char *argv[])
+{
+    QGuiApplication app(argc, argv);
+    app.setOrganizationName("FancyInput");
+    app.setApplicationName("FancyInput");
+    app.setApplicationVersion("1.2.0");
+
+    // Qt 6 默认启用高 DPI 缩放，叠层/遮罩坐标后续用 devicePixelRatio 归一化
+
+    QQmlApplicationEngine engine;
+
+    // 关键：qt_add_qml_module 把 qmldir + QML 文件嵌入到 :/FancyInputQt/ 资源前缀下。
+    // 必须把 qrc:/ 加入 import path，QML 引擎才能发现内嵌模块；
+    // 否则独立运行（无 build/ 下的磁盘模块目录）会报
+    // "Module FancyInputQt contains no type named Main"。
+    engine.addImportPath(QStringLiteral("qrc:/"));
+
+    // QML 加载失败时以非零码退出（Qt 6.5+ 推荐用法）
+    QObject::connect(&engine, &QQmlApplicationEngine::objectCreationFailed,
+                     &app, []() { QCoreApplication::exit(-1); },
+                     Qt::QueuedConnection);
+
+    engine.loadFromModule("FancyInputQt", "Main");
+
+    return app.exec();
+}

src/qml/Main.qml

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+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+import FancyInput.Controls
+
+// 阶段 0：Hello World 骨架
+// 窗口尺寸沿用 WPF 主窗 600x480，主题色 #651F65
+ApplicationWindow {
+    id: root
+    width: 600
+    height: 480
+    visible: true
+    title: qsTr("FancyInput · Qt 迁移版（阶段 0）")
+
+    color: Theme.background
+
+    ColumnLayout {
+        anchors.centerIn: parent
+        spacing: 16
+
+        // Logo 占位：后续替换为 WPF 版图标
+        Rectangle {
+            Layout.preferredWidth: 96
+            Layout.preferredHeight: 96
+            radius: 16
+            color: Theme.accent
+            Layout.alignment: Qt.AlignHCenter
+
+            Text {
+                anchors.centerIn: parent
+                text: "FI"
+                font.family: Theme.fontFamily
+                font.pixelSize: 32
+                font.bold: true
+                color: "white"
+            }
+        }
+
+        Label {
+            Layout.alignment: Qt.AlignHCenter
+            text: qsTr("FancyInput · Hello Qt")
+            font.family: Theme.fontFamily
+            font.pixelSize: 24
+            font.bold: true
+            color: Theme.textPrimary
+        }
+
+        Label {
+            Layout.alignment: Qt.AlignHCenter
+            text: qsTr("阶段 0：工程骨架跑通")
+            font.family: Theme.fontFamily
+            font.pixelSize: 13
+            color: Theme.textSecondary
+        }
+
+        // 验证主题单例 + 控件可用
+        Button {
+            Layout.alignment: Qt.AlignHCenter
+            text: qsTr("点击次数：%1").arg(root.clickCount)
+            font.family: Theme.fontFamily
+            onClicked: {
+                root.clickCount++
+                console.log("点击次数：", root.clickCount)
+            }
+        }
+    }
+
+    property int clickCount: 0
+}

src/qml/controls/Theme.qml

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+pragma Singleton
+import QtQuick
+
+// 主题：与 WPF 版保持一致
+QtObject {
+    readonly property color accent: "#651F65"
+    readonly property color accentLight: "#8A3A8A"
+    readonly property color background: "#1E1E24"
+    readonly property color surface: "#2A2A33"
+    readonly property color border: "#3A3A46"
+    readonly property color textPrimary: "#F2F2F7"
+    readonly property color textSecondary: "#9A9AA5"
+    readonly property string fontFamily: "Cascadia Mono, Consolas, monospace"
+}