添加通过WM_COPYDATA进程间通信的功能

MusicPlayer2/Lyric.cpp

@@ -755,6 +755,41 @@ int CLyrics::GetLyricProgress(CPlayTime time, bool ignore_blank, bool blank2mark
     return min(progress, 1000);
 }
 
+int CLyrics::GetLyricLrcProgress(CPlayTime time)
+{
+    if (m_lyrics.empty())
+        return 0;
+
+    int lyric_last_time{ 1 };           // time时间所在的歌词持续的时间
+    int lyric_current_time{ 0 };        // 当前歌词在time时间时已经持续的时间
+    int progress{};
+    for (size_t i{ 0 }; i < m_lyrics.size(); i++)
+    {
+        if (CPlayTime(m_lyrics[i].time_start_raw) > time)
+        {
+            if (i == 0)
+            {
+                lyric_current_time = time.toInt();
+                lyric_last_time = m_lyrics[i].time_start_raw;
+            }
+            else
+            {
+                lyric_last_time = m_lyrics[i].time_start_raw - m_lyrics[i - 1].time_start_raw;
+                lyric_current_time = time - m_lyrics[i - 1].time_start_raw;
+            }
+            if (lyric_last_time == 0) lyric_last_time = 1;
+            progress = lyric_current_time * 1000 / lyric_last_time;
+            return progress;
+        }
+    }
+    // 如果最后一句歌词之后已经没有时间标签，该句歌词默认显示20秒
+    lyric_current_time = time - m_lyrics[m_lyrics.size() - 1].time_start_raw;
+    lyric_last_time = 20000;
+    progress = lyric_current_time * 1000 / lyric_last_time;
+    if (progress > 1000) progress = 1000;
+    return progress;
+}
+
 CodeType CLyrics::GetCodeType() const
 {
     return m_code_type;

MusicPlayer2/Lyric.h

@@ -113,6 +113,8 @@ public:
     // ignore_blank为true时忽略空行，若同时blank2mark为true则将空行替换为进度符号
     // 注意进度为1000时表示当前歌词“已结束”，不要进行高亮并应根据需要进行高亮取消操作，由于逐字歌词引入此状态可能维持一段时间
     int GetLyricProgress(CPlayTime time, bool ignore_blank, bool blank2mark, std::function<int(const wstring&)> measure) const;
+    // 获取Lrc格式的歌词进度，不支持逐字歌词，用于在无法测量文本宽度时使用
+    int GetLyricLrcProgress(CPlayTime time);
 
     // 获得歌词文本的编码类型
     CodeType GetCodeType() const;

MusicPlayer2/MusicPlayer2.vcxproj

@@ -267,6 +267,7 @@
     <ClInclude Include="IMouseEvent.h" />
     <ClInclude Include="OpenUrlDlg.h" />
     <ClInclude Include="PlayerFormulaHelper.h" />
+    <ClInclude Include="ProcessMsgHelper.h" />
     <ClInclude Include="SongMultiVersion.h" />
     <ClInclude Include="QQMusicLyricDownload.h" />
     <ClInclude Include="CRecentList.h" />
@@ -515,6 +516,7 @@
     <ClCompile Include="CoverPreviewDlg.cpp" />
     <ClCompile Include="OpenUrlDlg.cpp" />
     <ClCompile Include="PlayerFormulaHelper.cpp" />
+    <ClCompile Include="ProcessMsgHelper.cpp" />
     <ClCompile Include="SongMultiVersion.cpp" />
     <ClCompile Include="QQMusicLyricDownload.cpp" />
     <ClCompile Include="CRecentList.cpp" />

MusicPlayer2/MusicPlayer2.vcxproj.filters

@@ -462,6 +462,9 @@
     <Filter Include="派生的控件类\UIEdit">
       <UniqueIdentifier>{a5342291-83e1-4bdf-ac26-74574f00fad5}</UniqueIdentifier>
     </Filter>
+    <Filter Include="功能逻辑类\ProcessMessage">
+      <UniqueIdentifier>{0e243445-cf5f-4426-8799-b047885b7a27}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <Text Include="ReadMe.txt" />
@@ -1215,6 +1218,9 @@
     <ClInclude Include="OpenUrlDlg.h">
       <Filter>头文件</Filter>
     </ClInclude>
+    <ClInclude Include="ProcessMsgHelper.h">
+      <Filter>功能逻辑类\ProcessMessage</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="FindDlg.cpp">
@@ -1929,6 +1935,9 @@
       <Filter>派生的控件类\UIEdit</Filter>
     </ClCompile>
     <ClCompile Include="OpenUrlDlg.cpp" />
+    <ClCompile Include="ProcessMsgHelper.cpp">
+      <Filter>功能逻辑类\ProcessMessage</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="MusicPlayer2.rc">

MusicPlayer2/ProcessMsgHelper.cpp

@@ -0,0 +1,85 @@
+#include "stdafx.h"
+#include "ProcessMsgHelper.h"
+#include "Player.h"
+#include "PlayerFormulaHelper.h"
+
+void CProcessMsgHelper::SendStringMessage(HWND hwnd, MusicPlayer2SentMsg msg_id, const std::wstring& msg_data)
+{
+    //通过WM_COPYDATA消息向已有进程传递消息
+    COPYDATASTRUCT copy_data;
+    copy_data.dwData = static_cast<UINT>(msg_id);
+    copy_data.cbData = msg_data.size() * sizeof(wchar_t);
+    copy_data.lpData = (const PVOID)msg_data.c_str();
+    ::SendMessage(hwnd, WM_COPYDATA, 0, (LPARAM)&copy_data);
+}
+
+void CProcessMsgHelper::SendIntMessage(HWND hwnd, MusicPlayer2SentMsg msg_id, int msg_data)
+{
+    //通过WM_COPYDATA消息向已有进程传递消息
+    COPYDATASTRUCT copy_data;
+    copy_data.dwData = static_cast<UINT>(msg_id);
+    copy_data.cbData = sizeof(int);
+    copy_data.lpData = (const PVOID)&msg_data;
+    ::SendMessage(hwnd, WM_COPYDATA, 0, (LPARAM)&copy_data);
+}
+
+void CProcessMsgHelper::SendFilePath(HWND hwnd)
+{
+    std::wstring msg_data = CPlayerFormulaHelper::GetPlayerVariableValue(PlayerVariable::FilePath);
+    SendStringMessage(hwnd, MusicPlayer2SentMsg::FilePath, msg_data);
+}
+
+void CProcessMsgHelper::SendTitle(HWND hwnd)
+{
+    std::wstring msg_data = CPlayerFormulaHelper::GetPlayerVariableValue(PlayerVariable::Title);
+    SendStringMessage(hwnd, MusicPlayer2SentMsg::Title, msg_data);
+}
+
+void CProcessMsgHelper::SendArtist(HWND hwnd)
+{
+    std::wstring msg_data = CPlayerFormulaHelper::GetPlayerVariableValue(PlayerVariable::Artist);
+    SendStringMessage(hwnd, MusicPlayer2SentMsg::Artist, msg_data);
+}
+
+void CProcessMsgHelper::SendAlbum(HWND hwnd)
+{
+    std::wstring msg_data = CPlayerFormulaHelper::GetPlayerVariableValue(PlayerVariable::Album);
+    SendStringMessage(hwnd, MusicPlayer2SentMsg::Album, msg_data);
+}
+
+void CProcessMsgHelper::SendAlbumCover(HWND hwnd)
+{
+    std::wstring album_cover_path = CPlayer::GetInstance().GetAlbumCoverPath();
+    SendStringMessage(hwnd, MusicPlayer2SentMsg::AlbumCover, album_cover_path);
+}
+
+void CProcessMsgHelper::SendCurrentLyric(HWND hwnd)
+{
+    std::wstring current_lyric = CPlayerFormulaHelper::GetPlayerVariableValue(PlayerVariable::CurrentLyric);
+    SendStringMessage(hwnd, MusicPlayer2SentMsg::CurrentLyric, current_lyric);
+}
+
+void CProcessMsgHelper::SendCurrentLyricPosition(HWND hwnd)
+{
+    CPlayTime time{ CPlayer::GetInstance().GetCurrentPosition() };		//当前播放时间
+    int lyric_index = CPlayer::GetInstance().m_Lyrics.GetLyricIndex(time);		            // 当前歌词的序号
+    int progress{ CPlayer::GetInstance().m_Lyrics.GetLyricLrcProgress(time) };
+    SendIntMessage(hwnd, MusicPlayer2SentMsg::CurrentLyricPosition, progress);
+}
+
+void CProcessMsgHelper::SendCurrentPosition(HWND hwnd)
+{
+    int current_position = CPlayer::GetInstance().GetCurrentPosition();
+    SendIntMessage(hwnd, MusicPlayer2SentMsg::CurrentPosition, current_position);
+}
+
+void CProcessMsgHelper::SendCurrentSongLenght(HWND hwnd)
+{
+    int song_length = CPlayer::GetInstance().GetSongLength();
+    SendIntMessage(hwnd, MusicPlayer2SentMsg::CurrentSongLenght, song_length);
+}
+
+void CProcessMsgHelper::ReciveProcessMessage(CWnd* pWnd, COPYDATASTRUCT* pCopyDataStruct)
+{
+}
+

MusicPlayer2/ProcessMsgHelper.h

@@ -0,0 +1,42 @@
+#pragma once
+
+enum class MusicPlayer2RecivedMsg
+{
+    PlayerInfoRequired, //MusicPlayer2收到此消息时向发送者发送正在播放歌曲信息
+    SendCommand,        //向MusicPlayer2发送WM_COMMAND消息
+    SeekTo,             //定位到指定位置
+};
+
+enum class MusicPlayer2SentMsg
+{
+    FilePath,           //正在播放的文件路径
+    Title,              //正在播放的曲目标题
+    Artist,             //正在播放的曲目艺术家
+    Album,              //正在播放的曲目唱片集
+    AlbumCover,         //正在播放曲目的专辑封面（文件路径）
+    CurrentLyric,       //正在播放的歌词
+    CurrentLyricPosition,    //正在播放歌词的进度（0~1000）
+    CurrentPosition,    //当前播放进度（毫秒）
+    CurrentSongLenght,  //当前播放曲目的长度（毫秒）
+};
+
+class CProcessMsgHelper
+{
+public:
+    static void SendStringMessage(HWND hwnd, MusicPlayer2SentMsg msg_id, const std::wstring& msg_data);
+    static void SendIntMessage(HWND hwnd, MusicPlayer2SentMsg msg_id, int msg_data);
+
+    static void SendFilePath(HWND hwnd);
+    static void SendTitle(HWND hwnd);
+    static void SendArtist(HWND hwnd);
+    static void SendAlbum(HWND hwnd);
+    static void SendAlbumCover(HWND hwnd);
+    static void SendCurrentLyric(HWND hwnd);
+    static void SendCurrentLyricPosition(HWND hwnd);
+    static void SendCurrentPosition(HWND hwnd);
+    static void SendCurrentSongLenght(HWND hwnd);
+
+    //
+    static void ReciveProcessMessage(CWnd* pWnd, COPYDATASTRUCT* pCopyDataStruct);
+};
+