thememanager.cpp

一个简单漂亮的C++编写的mp3播放器

/*____________________________________________________________________________

   FreeAmp - The Free MP3 Player

   Copyright (C) 1999 EMusic

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

   $Id: ThemeManager.cpp,v 1.2 1999/12/10 05:05:46 elrod Exp $
____________________________________________________________________________*/ 

#include <stdio.h>
#include <sys/stat.h>
#include <unistd.h>
#include <netinet/in.h>
#include "ThemeManager.h"
#include "utility.h"
#include "win32impl.h"

ThemeManager::ThemeManager(FAContext *pContext)
{
    m_pContext = pContext;
    m_oCurrentTheme = "";
}

ThemeManager::~ThemeManager(void)
{
}

Error ThemeManager::GetDefaultTheme(string &oThemePath)
{
    char              dir[_MAX_PATH];
    uint32            len = sizeof(dir);

    m_pContext->prefs->GetInstallDirectory(dir, &len);
    oThemePath = string(dir);
    oThemePath += string("/themes/freeamp.fat");    

    return kError_NoErr;
}

Error ThemeManager::GetThemeList(map<string, string> &oThemeFileMap)
{
    WIN32_FIND_DATA find;
    HANDLE          handle;
    char            dir[_MAX_PATH], *ptr;
    uint32          len = sizeof(dir);
    string          oThemePath, oThemeBasePath, oThemeFile;

    m_pContext->prefs->GetInstallDirectory(dir, &len);
    oThemeBasePath = string(dir) + "/themes";
    oThemePath = oThemeBasePath + string("/*.fat");    

    handle = FindFirstFile((char *)oThemePath.c_str(), &find);
    if(handle != INVALID_HANDLE_VALUE)
        do {
   	    oThemeFile = oThemeBasePath + string("/") + string(find.cFileName);
    	    ptr = strrchr(find.cFileName, '.');
            if (ptr)
               *ptr = 0;

            oThemeFileMap[find.cFileName] = oThemeFile;
        }
        while(FindNextFile(handle, &find));

    oThemeBasePath = FreeampDir(NULL) + string("/themes");

    struct stat st;
    if (-1 == stat(oThemeBasePath.c_str(), &st))
        mkdir(oThemeBasePath.c_str(), 0755);
    oThemePath = oThemeBasePath + string("/*.fat");
    handle = FindFirstFile((char *)oThemePath.c_str(), &find);
    if(handle != INVALID_HANDLE_VALUE)
        do {
            oThemeFile = oThemeBasePath + string("/") + string(find.cFileName);
            ptr = strrchr(find.cFileName, '.');
            if (ptr)
               *ptr = 0;
            oThemeFileMap[find.cFileName] = oThemeFile;
        }
        while(FindNextFile(handle, &find));

    oThemeBasePath = "./themes";
    oThemePath = oThemeBasePath + string("/*.fat");
    handle = FindFirstFile((char *)oThemePath.c_str(), &find);
    if(handle != INVALID_HANDLE_VALUE)
        do {
            oThemeFile = oThemeBasePath + string("/") + string(find.cFileName);
            ptr = strrchr(find.cFileName, '.');
            if (ptr)
               *ptr = 0;
            oThemeFileMap[find.cFileName] = oThemeFile;
        }
        while(FindNextFile(handle, &find));

    return kError_NoErr;
}

Error ThemeManager::UseTheme(string &oThemeFile)
{
    char   dir[_MAX_PATH];
    string oThemePath;

    char *temp_dir;
    temp_dir = strrchr(oThemeFile.c_str(), '/');
    if (temp_dir) {
        temp_dir = temp_dir + 1;
	strcpy(dir, temp_dir);
        if (!strcmp(dir, m_oCurrentTheme.c_str()))
        {
            return kError_NoErr;
        }
    }

    m_pContext->prefs->SetThemePath((char *)oThemeFile.c_str());
    m_oCurrentTheme = string(dir);
    
    return kError_NoErr;
}

Error ThemeManager::AddTheme(string &oThemeFile)
{
    string oThemeDest;
    char fcopy[_MAX_PATH], *filename, *ext;
    FILE *orig, *dest;

    oThemeDest = FreeampDir(NULL) + string("/themes");
    strcpy(fcopy, oThemeFile.c_str());
    filename = strrchr(fcopy, '/');
    if (filename)
        filename = filename + 1;
    else
        filename = fcopy;
    ext = strrchr(filename, '.');
    if (ext)
        *ext = '\0';
    if (strcmp(filename, m_oCurrentTheme.c_str()) == 0) {
        return kError_NoErr;
    }
    
    oThemeDest += string(filename) + string(".") + string(ext);   

    orig = fopen(oThemeFile.c_str(), "r");
    if (!orig)
        return kError_FileNotFound;
    dest = fopen(oThemeDest.c_str(), "w");
    if (!dest) {
        fclose(orig);
        return kError_FileNotFound;
    }
    unsigned char buf[1];
    while (fread(buf, 1, 1, orig))
        fwrite(buf, 1, 1, dest);
    fclose(orig);
    fclose(dest);
    return kError_NoErr;
}

Error ThemeManager::DeleteTheme(string &oThemeFile)
{
    return unlink(oThemeFile.c_str()) == 0 ? kError_NoErr : kError_UnlinkFailed;
}

Error ThemeManager::GetCurrentTheme(string &oTheme)
{
    oTheme = m_oCurrentTheme;
    return kError_NoErr;
}