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//
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// Created by Administrator on 2025/4/1.
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//
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#include "ModelPage.h"
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#include <QFileDialog>
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#include <QHBoxLayout>
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#include "ElaMessageBar.h"
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#include "ElaScrollPageArea.h"
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#include "ElaText.h"
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#include <QtConcurrent>
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#include <QOpenGLContext>
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#include <QOffscreenSurface>
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#include <QFutureWatcher>
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#include "LAppLive2DManager.hpp"
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ModelPage::ModelPage(QWidget *parent)
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: BasePage(parent) {
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// 预览窗口标题
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setWindowTitle("ModelPage");
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modelUrlEdit = new ElaLineEdit(this); // 模型Url Edit
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modelUrlEdit->setFixedWidth(300);
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modelUrlEdit->setPlaceholderText("用于显示当前的模型Url");
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modelChoosePushButton = new ElaPushButton("选择模型", this);
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modelChoosePushButton->setToolTip("选择.model3.json结尾的文件");
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modelUsePushButton = new ElaPushButton("使用模型", this);
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modelUsePushButton->setToolTip("使用选择的模型或Url对应的模型");
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ElaScrollPageArea *modelSetArea = new ElaScrollPageArea(this);
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QHBoxLayout *modelSetLayout = new QHBoxLayout(modelSetArea);
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ElaText *modelSetText = new ElaText("模型设置", this);
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modelSetText->setTextPixelSize(15);
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modelSetLayout->addWidget(modelSetText);
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modelSetLayout->addWidget(modelUrlEdit);
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modelSetLayout->addStretch();
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modelSetLayout->addWidget(modelChoosePushButton);
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modelSetLayout->addWidget(modelUsePushButton);
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modelSetLayout->addSpacing(10);
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// 创建滑块控件和标签
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ElaText *modelSizeText = new ElaText("模型大小比例设置", this);
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modelSizeText->setToolTip("实时调整模型大小");
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modelSizeText->setTextPixelSize(15);
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modelSlider = new ElaSlider(this); // 滑块(用于设置模型实时大小)
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modelSlider->setRange(0, 99); // 设置范围
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modelSlider->setValue(85); // 设置默认值
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modelSlider->setOrientation(Qt::Horizontal); // 水平方向
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// 创建独立的区域容器
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ElaScrollPageArea *modelSliderArea = new ElaScrollPageArea(this);
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QHBoxLayout *modelSliderLayout = new QHBoxLayout(modelSliderArea);
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// 添加到布局(加一个标签显示数值)
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ElaText *modelSliderValueText = new ElaText("85%", this);
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modelSliderValueText->setTextPixelSize(14);
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connect(modelSlider, &ElaSlider::valueChanged, this, [modelSliderValueText](const int value){
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modelSliderValueText->setText(QString("%1%").arg(value + 1));
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LAppLive2DManager::GetInstance()->ModelSizeChange(100 - value); // 实时更新模型大小
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});
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modelSliderLayout->addWidget(modelSizeText);
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modelSliderLayout->addWidget(modelSlider);
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modelSliderLayout->addWidget(modelSliderValueText);
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modelSliderLayout->addStretch(); // 让内容靠左
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connect(modelChoosePushButton, &ElaPushButton::clicked, this, [this]() {
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// 创建对话框对象（使用 heap 分配，由 Qt 对象树管理内存）
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auto *fileDialog = new QFileDialog(this);
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fileDialog->setWindowTitle("选择模型文件");
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fileDialog->setNameFilter("Live2D Model (*.model3.json)");
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// 设置初始目录
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const QString exeDir = QCoreApplication::applicationDirPath(); // 获取当前exe所在目录的本地路径
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fileDialog->setDirectory(exeDir); // 设置初始目录为当前 exe 所在目录
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// 连接信号：当用户选中文件并点击打开时
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connect(fileDialog, &QFileDialog::fileSelected, this, [this, fileDialog](const QString &file) {
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modelFileUrl = QUrl::fromLocalFile(file);
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if (!modelFileUrl.isEmpty()) {
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const QString t = modelFileUrl.toLocalFile();
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const std::pair<QString, QString> path = this->splitPath(t);
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this->modelFilePathFirst = path.first;
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this->modelFilePathSecond = path.second;
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this->modelUrlEdit->setText(t);
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ElaMessageBar::success(ElaMessageBarType::BottomRight, "模型设置", "模型选择成功", 2000, this);
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}
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// 用完即弃，自动清理内存
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fileDialog->deleteLater();
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});
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// 处理取消的情况（防止内存泄漏）
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connect(fileDialog, &QFileDialog::rejected, fileDialog, &QObject::deleteLater);
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// 显示对话框（非阻塞，不会卡住主界面）
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fileDialog->open();
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});
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connect(modelUsePushButton, &ElaPushButton::clicked, this, [this]() {
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// 模型使用
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if (modelFileUrl.isEmpty()) {
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ElaMessageBar::information(ElaMessageBarType::BottomRight, "模型设置", "似乎并没有选择模型", 800.0, this);
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return;
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}
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// UI 状态设置为加载中
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modelUsePushButton->setEnabled(false); // 禁用使用按钮
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modelUsePushButton->setText("加载中"); // 修改按钮文本
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modelChoosePushButton->setEnabled(false); // 禁用选择按钮
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// 获取路径字符串 (必须按值传递给lambda)
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std::string dir = this->modelFilePathFirst.toStdString();
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std::string filename = this->modelFilePathSecond.toStdString();
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// 启动异步任务
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QFuture<LAppModel *> future = QtConcurrent::run([dir, filename]() -> LAppModel * {
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// 以下代码在子线程执行
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// 创建临时 OpenGL 上下文
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auto *context = new QOpenGLContext();
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// 关键点：设置与全局共享上下文共享 (这样主线程才能看到纹理)
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context->setShareContext(QOpenGLContext::globalShareContext());
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if (!context->create()) {
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delete context;
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return nullptr;
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}
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// 创建离屏表面 (因为子线程没有窗口，需要一个假的绘制表面)
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auto *surface = new QOffscreenSurface();
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surface->setFormat(context->format());
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surface->create();
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// 绑定上下文
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if (!context->makeCurrent(surface)) {
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delete surface;
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delete context;
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return nullptr;
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}
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// 执行真正的耗时加载
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// 调用在 Manager 里新写的函数
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LAppModel *model = LAppLive2DManager::GetInstance()->LoadModelInstance(dir, filename);
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// 清理子线程资源
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context->doneCurrent();
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delete surface;
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delete context;
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return model;
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});
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// 监控任务结束
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auto *watcher = new QFutureWatcher<LAppModel *>();
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connect(watcher, &QFutureWatcher<LAppModel *>::finished, this, [this, watcher]() {
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// 下面的代码在主线程中执行
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LAppModel *newModel = watcher->result();
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if (newModel) {
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// 调用挂载函数，瞬间完成切换
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LAppLive2DManager::GetInstance()->MountLoadedModel(newModel);
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ElaMessageBar::success(ElaMessageBarType::BottomRight, "成功", "模型加载完成", 2000, this);
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} else {
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ElaMessageBar::error(ElaMessageBarType::BottomRight, "错误", "模型加载失败 (OpenGL环境异常)", 2000, this);
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}
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// 恢复 UI
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modelUsePushButton->setEnabled(true);
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modelUsePushButton->setText("使用模型");
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modelChoosePushButton->setEnabled(true);
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watcher->deleteLater();
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});
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// 开始监控
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watcher->setFuture(future);
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});
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QWidget *centralWidget = new QWidget(this);
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centralWidget->setWindowTitle("模型设置");
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QVBoxLayout *centerLayout = new QVBoxLayout(centralWidget);
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centerLayout->addWidget(modelSetArea);
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centerLayout->addWidget(modelSliderArea);
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centerLayout->addStretch();
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centerLayout->setContentsMargins(0, 0, 0, 0);
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addCentralWidget(centralWidget, true, true, 0);
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}
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// 返回 pair<目录路径, 文件名>
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std::pair<QString, QString> ModelPage::splitPath(const QString &fullPath) {
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const QFileInfo fileInfo(fullPath);
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// 获取目录部分（自动处理末尾斜杠）
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QString dirPath = fileInfo.dir().absolutePath() + "/";
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// 获取文件名部分（如果是目录则返回空）
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QString fileName = fileInfo.fileName();
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return {dirPath, fileName};
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}
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ModelPage::~ModelPage() {
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}
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