TCPMP播放器UI的修改方法
前段时间对TCPMP程序进行了研究,花了点时间把TCPMP程序的UI修改成了自已想要的样子,现对UI的修改方法简单介绍下:
网上有文章对于TCPMP程序在ARMV4下的编译方法和程序的结构介绍比较详细,但对于inteface方面的修改方法讲得并不多.
修改TCPMP界面基本上有两种方法:
1) 建立自已的工程,把TCPMP下的lib移植到这个工程里,这样界面的修改比较灵活,但是工作量比较大;
2) 直接在TCPMP工程里修改interface,这样工作量相对比较小,但是UI的修改受了定的约束, 没有前种方法灵活.
本人所修改的UI是按照第二种方法来做的.主要是对win_win32.c文件和inteface.c 文件进行修改.
首先,我们来看看win_win32.c文件里的Win_Init()函数,这个函数可以看作是TCPMP UI部分的一个入口,在这个函数里注册了两个窗口类,WinClass和DialogClass.另外还调用了其它控件的初始化函数,下面是这个函数的代码.
view plaincopy to clipboardprint?
void Win_Init()
{
HMODULE Module = Context()->LoadModule;
if (!Module) Module = GetModuleHandle(NULL);
InitCommonControls();
WidcommAudio_Init();
stprintf_s(WinClassName,TSIZEOF(WinClassName),T("%s_Win"),Context()->ProgramName);
memset(&WinClass,0,sizeof(WinClass));
WinClass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
WinClass.lpfnWndProc = Proc;
WinClass.cbClsExtra = 0;
WinClass.cbWndExtra = 0;
WinClass.hInstance = Module;
WinClass.hIcon = LoadIcon (GetModuleHandle(NULL), MAKEINTRESOURCE(WIN_ICON));
WinClass.hCursor = WinCursorArrow();
WinClass.hbrBackground =NULL;
WinClass.lpszMenuName = 0;
WinClass.lpszClassName = WinClassName;
RegisterClass(&WinClass);
#if 1
memset(&DialogClass,0,sizeof(DialogClass));
DialogClass.style = CS_HREDRAW | CS_VREDRAW;
DialogClass.lpfnWndProc = DialogProc;
DialogClass.cbClsExtra = 0;
DialogClass.cbWndExtra = 0;
DialogClass.hInstance = Module;
DialogClass.hCursor = WinCursorArrow();
#if defined(TARGET_WINCE)
DialogClass.hbrBackground = GetSysColorBrush(COLOR_STATIC);//
#else
DialogClass.hbrBackground = GetSysColorBrush(COLOR_BTNFACE);
#endif
DialogClass.lpszMenuName = 0;
DialogClass.lpszClassName = T("DialogBase");
RegisterClass(&DialogClass);
#endif
memset(&FontCache,0,sizeof(FontCache));
#if defined(TARGET_WINCE)
if (Context()->ProgramId >= 3 && !QueryAdvanced(ADVANCED_OLDSHELL))
{
AygShell = LoadLibrary(T("aygshell.dll"));
*(FARPROC*)&FuncSHCreateMenuBar = GetProcAddress(AygShell,T("SHCreateMenuBar"));
*(FARPROC*)&FuncSHInitDialog = GetProcAddress(AygShell,T("SHInitDialog"));
*(FARPROC*)&FuncSHFullScreen = GetProcAddress(AygShell,T("SHFullScreen"));
*(FARPROC*)&FuncSHHandleWMActivate = GetProcAddress(AygShell,MAKEINTRESOURCE(84));
*(FARPROC*)&FuncSHHandleWMSettingChange = GetProcAddress(AygShell,MAKEINTRESOURCE(83));
*(FARPROC*)&FuncSHSendBackToFocusWindow = GetProcAddress(AygShell,MAKEINTRESOURCE(97));
}
CoreDLL = LoadLibrary(T("coredll.dll"));
*(FARPROC*)&FuncUnregisterFunc1 = GetProcAddress(CoreDLL,T("UnregisterFunc1"));
*(FARPROC*)&FuncAllKeys = GetProcAddress(CoreDLL,T("AllKeys"));
*(FARPROC*)&FuncSipShowIM = GetProcAddress(CoreDLL,T("SipShowIM"));
*(FARPROC*)&FuncSipGetInfo = GetProcAddress(CoreDLL,T("SipGetInfo"));
#endif
NodeRegisterClass(&Win);
QueryKey_Init();
OpenFile_Init();
Interface_Init();
PlaylistWin_Init();
PlaylistNewWin_Init();
}
void Win_Init()
{
HMODULE Module = Context()->LoadModule;
if (!Module) Module = GetModuleHandle(NULL);
InitCommonControls();
WidcommAudio_Init();
stprintf_s(WinClassName,TSIZEOF(WinClassName),T("%s_Win"),Context()->ProgramName);
memset(&WinClass,0,sizeof(WinClass));
WinClass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
WinClass.lpfnWndProc = Proc;
WinClass.cbClsExtra = 0;
WinClass.cbWndExtra = 0;
WinClass.hInstance = Module;
WinClass.hIcon = LoadIcon (GetModuleHandle(NULL), MAKEINTRESOURCE(WIN_ICON));
WinClass.hCursor = WinCursorArrow();
WinClass.hbrBackground =NULL;
WinClass.lpszMenuName = 0;
WinClass.lpszClassName = WinClassName;
RegisterClass(&WinClass);
#if 1
memset(&DialogClass,0,sizeof(DialogClass));
DialogClass.style = CS_HREDRAW | CS_VREDRAW;
DialogClass.lpfnWndProc = DialogProc;
DialogClass.cbClsExtra = 0;
DialogClass.cbWndExtra = 0;
DialogClass.hInstance = Module;
DialogClass.hCursor = WinCursorArrow();
#if defined(TARGET_WINCE)
DialogClass.hbrBackground = GetSysColorBrush(COLOR_STATIC);//
#else
DialogClass.hbrBackground = GetSysColorBrush(COLOR_BTNFACE);
#endif
DialogClass.lpszMenuName = 0;
DialogClass.lpszClassName = T("DialogBase");
RegisterClass(&DialogClass);
#endif
memset(&FontCache,0,sizeof(FontCache));
#if defined(TARGET_WINCE)
if (Context()->ProgramId >= 3 && !QueryAdvanced(ADVANCED_OLDSHELL))
{
AygShell = LoadLibrary(T("aygshell.dll"));
*(FARPROC*)&FuncSHCreateMenuBar = GetProcAddress(AygShell,T("SHCreateMenuBar"));
*(FARPROC*)&FuncSHInitDialog = GetProcAddress(AygShell,T("SHInitDialog"));
*(FARPROC*)&FuncSHFullScreen = GetProcAddress(AygShell,T("SHFullScreen"));
*(FARPROC*)&FuncSHHandleWMActivate = GetProcAddress(AygShell,MAKEINTRESOURCE(84));
*(FARPROC*)&FuncSHHandleWMSettingChange = GetProcAddress(AygShell,MAKEINTRESOURCE(83));
*(FARPROC*)&FuncSHSendBackToFocusWindow = GetProcAddress(AygShell,MAKEINTRESOURCE(97));
}
CoreDLL = LoadLibrary(T("coredll.dll"));
*(FARPROC*)&FuncUnregisterFunc1 = GetProcAddress(CoreDLL,T("UnregisterFunc1"));
*(FARPROC*)&FuncAllKeys = GetProcAddress(CoreDLL,T("AllKeys"));
*(FARPROC*)&FuncSipShowIM = GetProcAddress(CoreDLL,T("SipShowIM"));
*(FARPROC*)&FuncSipGetInfo = GetProcAddress(CoreDLL,T("SipGetInfo"));
#endif
NodeRegisterClass(&Win);
QueryKey_Init();
OpenFile_Init();
Interface_Init();
PlaylistWin_Init();
PlaylistNewWin_Init();
}
在此函数中我们需要注意 WinClass.lpfnWndProc= Proc; Proc是消息处理函数名.实际上所有的消息处理都是在static LRESULT CALLBACK Proc(HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam)函数里完成的.
下面对此函数中比较重点的消息作下说明:
WM_CREATE消息里主要是建立播放的窗口;
WM_PAINT消息里可以贴上UI的背景图片,这样使UI看上去比较美观.贴图部分程序如下:
view plaincopy to clipboardprint?
case WM_PAINT:
{
hdc = BeginPaint(Wnd,&Paint);
MainBkGnd = LoadBitmap(p->Module,MAKEINTRESOURCE(IDB_MAIN_BKG));
MemDC = CreateCompatibleDC(hdc);
bmpOld = (HBITMAP)SelectObject(MemDC,MainBkGnd);
BitBlt(hdc,0,0,LCD_XSIZE,LCD_YSIZE,MemDC,0,0,SRCCOPY);
SelectObject(MemDC,bmpOld);
DeleteObject(bmpOld);
DeleteDC(MemDC);
EndPaint(Wnd,&Paint);
}
break;
case WM_PAINT:
{
hdc = BeginPaint(Wnd,&Paint);
MainBkGnd = LoadBitmap(p->Module,MAKEINTRESOURCE(IDB_MAIN_BKG));
MemDC = CreateCompatibleDC(hdc);
bmpOld = (HBITMAP)SelectObject(MemDC,MainBkGnd);
BitBlt(hdc,0,0,LCD_XSIZE,LCD_YSIZE,MemDC,0,0,SRCCOPY);
SelectObject(MemDC,bmpOld);
DeleteObject(bmpOld);
DeleteDC(MemDC);
EndPaint(Wnd,&Paint);
}
break;
WM_COMMAND消息是所有菜单 ,按钮等点击后处理的入口点，具体的实现在interface.c里的static int Command(intface* p,int Cmd)函数里来做处理。如播放,暂停,前一首,下一首等.还有其它的一些消息处理在此不做介绍了.
Interface.c的程序结构和win_win32.c 基本差不多,其中最主要的也是static bool_t Proc(intface* p, int Msg, uint32_t wParam, uint32_t lParam, int* Result)函数对消息的处理.在此函数的WM_CREATE消息里可以建立起各种控件的消息处理.然后分别在各控件的消息处理函数里通过上面贴bitmap图片的方式来改变控件的外观.
其实对于TCPMP程序UI部分的修改,最主要的还是要读懂源代码.在读懂源代码的基础上再结合Win32程序的结构来修改界面还是比较容易的.
