has been completed.

2026-02-14 00:51:48 +08:00 · 2025-09-09 15:37:57 +08:00
parent 83f3f4f74e
commit 89ff4fbac0
38 changed files with 2679 additions and 161 deletions
--- a/messageshowarea.cpp
+++ b/messageshowarea.cpp
@ -1,9 +1,13 @@
 #include "messageshowarea.h"

-#include "mainwidget.h"
-#include "userinfowidget.h"
+#include <QMenu>
 #include <qtimer.h>
+#include "mainwidget.h"
+#include "QFileDialog"
+#include "toast.h"
+#include "userinfowidget.h"
 #include "model/datacenter.h"
+#include "soundrecorder.h"

 MessageShowArea::MessageShowArea() {
    //初始化基本属性
@ -151,13 +155,13 @@ MessageItem *MessageItem::makeMessageItem(bool isLeft, const Message &message)
        contentWidget = makeTextMessageItem(isLeft, message.content);
        break;
    case model::IMAGE_TYPE:
-        contentWidget = makeImageMessageItem();
+        contentWidget = makeImageMessageItem(isLeft, message.fileId, message.content);
        break;
    case model::FILE_TYPE:
-        contentWidget = makeFileMessageItem();
+        contentWidget = makeFileMessageItem(isLeft, message);
        break;
    case model::SPEECH_TYPE:
-        contentWidget = makeSpeechMessageItem();
+        contentWidget = makeSpeechMessageItem(isLeft, message);
        break;
    default:
        LOG() << "error messageType: " << message.messageType;
@ -193,32 +197,38 @@ MessageItem *MessageItem::makeMessageItem(bool isLeft, const Message &message)

 QWidget *MessageItem::makeTextMessageItem(bool isLeft, const QString &text)
 {
-    MessageContentLabel* messageContentLabel = new MessageContentLabel(text, isLeft);
+    MessageContentLabel* messageContentLabel = new MessageContentLabel(text, isLeft, TEXT_TYPE, "", QByteArray());
    return messageContentLabel;
 }

-QWidget *MessageItem::makeImageMessageItem()
+QWidget *MessageItem::makeImageMessageItem(bool isLeft, const QString& fileId, const QByteArray& content)
 {
-    return nullptr;
+    MessageImageLabel* messageImageLabel = new MessageImageLabel(fileId, content, isLeft);
+    return messageImageLabel;
 }

-QWidget *MessageItem::makeFileMessageItem()
+QWidget *MessageItem::makeFileMessageItem(bool isLeft, const Message& message)
 {
-    return nullptr;
+    MessageContentLabel* messageContentLabel = new MessageContentLabel("[文件] " + message.fileName, isLeft, message.messageType,
+        message.fileId, message.content);
+    return messageContentLabel;
 }

-QWidget *MessageItem::makeSpeechMessageItem()
+QWidget *MessageItem::makeSpeechMessageItem(bool isLeft, const Message& message)
 {
-    return nullptr;
+    MessageContentLabel* messageContentLabel = new MessageContentLabel("[语音]", isLeft, message.messageType, message.fileId, message.content);
+    return messageContentLabel;
 }



 ////////////////////////////////////////////
 /// 创建类表示“文本消息”正文部分
+//这个类也表示文件消息
 ////////////////////////////////////////////
-MessageContentLabel::MessageContentLabel(const QString &text, bool isLeft)
-    :isLeft(isLeft)
+MessageContentLabel::MessageContentLabel(const QString& text, bool isLeft, model::MessageType messageType, const QString& fileId,
+    const QByteArray& content)
+    :isLeft(isLeft), messageType(messageType), fileId(fileId), content(content)
 {
    this->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

@ -232,6 +242,21 @@ MessageContentLabel::MessageContentLabel(const QString &text, bool isLeft)
    this->label->setAlignment(Qt::AlignCenter | Qt::AlignLeft);
    this->label->setWordWrap(true);
    this->label->setStyleSheet("QLabel { padding: 0 10px; line-height: 1.2; background-color: transparent; }");
+
+    //针对文件消息，且content为空，通过网络加载数据
+    if (messageType == model::TEXT_TYPE) {
+        return;
+    }
+
+    if (this->content.isEmpty()) {
+        DataCenter* dataCenter = DataCenter::getInstance();
+        connect(dataCenter, &DataCenter::getSingleFileDone, this, &MessageContentLabel::updateUI);
+        dataCenter->getSingleFileAsync(this->fileId);
+    }
+    else {
+        //content 不为空，说明这个数据已经是现成的，加载状态直接改为true即可
+        this->loadContentDone = true;
+    }
 }

 //这个函数会在该控件被显示时，自动的调用到
@ -307,3 +332,181 @@ void MessageContentLabel::paintEvent(QPaintEvent *event)
    //注意高度要涵盖之前的名字和时间的label的高度，以及留一点的冗余的空间
    parent->setFixedHeight(height + 50);
 }
+
+void MessageContentLabel::mousePressEvent(QMouseEvent* event)
+{
+    //鼠标点击之后，触发文件另存为
+    if (event->button() == Qt::LeftButton) {
+        //左键按下
+        if (this->messageType == FILE_TYPE) {
+            //真正触发另存为
+            if (!this->loadContentDone) {
+                Toast::showMessage("数据尚未加载成功，请稍后重试");
+                return;
+            }
+            saveAsFile(this->content);
+        }
+        else if (this->messageType == SPEECH_TYPE) {
+            if (!this->loadContentDone) {
+                Toast::showMessage("数据尚未加载成功，请稍后重试");
+                return;
+            }
+            SoundRecorder* soundRecorder = SoundRecorder::getInstance();
+            this->label->setText("播放中...");
+            connect(soundRecorder, &SoundRecorder::soundPlayDone, this, &MessageContentLabel::playDone, Qt::UniqueConnection);
+            soundRecorder->startPlay(this->content);
+        }
+        else {
+            //啥也不做
+        }
+    }
+}
+
+void MessageContentLabel::updateUI(const QString& fileId, const QByteArray& fileContent)
+{
+    if (fileId != this->fileId) {
+        return;
+    }
+    this->content = fileContent;
+    this->loadContentDone = true;
+    //从服务器拿到文件正文之前，界面内容就应该已经绘制好了，拿到正文之后，也不需要做出调整
+    //所以，👇没有也行
+    this->update();
+}
+
+void MessageContentLabel::saveAsFile(const QByteArray& content)
+{
+    //弹出对话框，让让用户选择路径
+    QString filePath = QFileDialog::getOpenFileName(this, "另存为", QDir::homePath(), "*");
+    if (filePath.isEmpty()) {
+        LOG() << "用户取消了文件另存为";
+        return;
+    }
+    writeByteArrayToFile(filePath, content);
+}
+
+void MessageContentLabel::playDone()
+{
+    if (this->label->text() == "播放中...") {
+        this->label->setText("[语音]");
+    }
+}
+
+void MessageContentLabel::contextMenuEvent(QContextMenuEvent* event)
+{
+    //LOG() << "触发上下文菜单";
+    (void)event;
+    if (messageType != SPEECH_TYPE) {
+        LOG() << "非语音消息暂不支持右键菜单";
+        return;
+    }
+
+    QMenu* menu = new QMenu(this);
+    menu->setStyleSheet("QMenu { color: rgb(0, 0, 0); }");
+    QAction* action = menu->addAction("语音转文字");
+    connect(action, &QAction::triggered, this, [=]() {
+        DataCenter* dataCenter = DataCenter::getInstance();
+        connect(dataCenter, &DataCenter::speechConvertTextDone, this, &MessageContentLabel::speechConverTextDone, Qt::UniqueConnection);
+        dataCenter->speechConvertTextAsync(this->fileId, this->content);
+        });
+    //类似于模态对话框
+    menu->exec(event->globalPos());
+    delete menu;
+}
+
+void MessageContentLabel::speechConverTextDone(const QString& fileId, const QString& text)
+{
+    if (this->fileId != fileId) {
+        return;
+    }
+    //修改界面内容
+    this->label->setText("[语音转文字] " + text);
+    this->update();
+}
+
+////////////////////////////////////////////
+/// 创建类表示“图片消息”部分
+////////////////////////////////////////////
+MessageImageLabel::MessageImageLabel(const QString& fileId, const QByteArray& content, bool isLeft)
+    :fileId(fileId), content(content), isLeft(isLeft)
+{
+    this->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+
+    imageBtn = new QPushButton(this);
+    imageBtn->setStyleSheet("QPushButton { border: none; border-radius: 10px; }");
+
+    if (content.isEmpty()) {
+        //此处，从服务器拿到图片消息
+        //拿着fileId，去服务器获取图片内容
+        DataCenter* dataCenter = DataCenter::getInstance();
+        connect(dataCenter, &DataCenter::getSingleFileDone, this, &MessageImageLabel::updateUI);
+        dataCenter->getSingleFileAsync(fileId);
+    }
+}
+
+void MessageImageLabel::updateUI(const QString& fileId, const QByteArray& content)
+{
+    //由于是一呼百应，要判断fileId是否是当前的fileId
+    if (this->fileId != fileId) {
+        return;
+    }
+    //对上了，就真正显示图片内容 
+    this->content = content;
+
+    //进行绘制图片到界面上
+    this->update();
+}
+
+//真正进行绘制图片到界面上
+void MessageImageLabel::paintEvent(QPaintEvent* event)
+{
+    (void)event;
+    QObject* object = this->parent();
+    if (!object->isWidgetType()) {
+        return;
+    }
+    QWidget* parent = dynamic_cast<QWidget*>(object);
+    int width = parent->width() * 0.4;
+
+    //加载二进制数据为图片对象
+    QImage image;
+    if (content.isEmpty()) {
+        //说明此时响应的数据还没有回来，
+        //那么先拿默认图片临时代替
+        QByteArray tmpContent = loadFileToByteArray(":resource/image/image.png");
+        image.loadFromData(tmpContent);
+    }
+    else {
+        image.loadFromData(content);
+    }
+
+    //针对图片进行缩放
+    int height = 0;
+    if (image.width() > width) {
+        //说明图片过宽，把图片放缩(等比)
+        height = ((double)image.height() / image.width()) * width;
+    }
+    else {
+        //没有过阈值，不用管
+        width = image.width();
+        height = image.height();
+    }
+    
+    //QImage不能直接转换为QIcon，需要QPixmap中转一下
+    QPixmap pixmap = QPixmap::fromImage(image);
+    imageBtn->setFixedSize(width, height);
+    imageBtn->setIconSize(QSize(width, height));
+    imageBtn->setIcon(QIcon(pixmap));
+
+    //为了容纳下上方名字部分，同时留下一点冗余
+    parent->setFixedHeight(height + 50);
+
+    //确定是左侧还是右侧消息
+    if (isLeft) {
+        imageBtn->setGeometry(10, 0, width, height);
+    }
+    else {
+        int leftPos = this->width() - width - 10;
+        imageBtn->setGeometry(leftPos, 0, width, height);
+    }
+ }