/*********************************************************************
*
* _FillNode
*
* Function description
* Recursive filling of node
*
* Parameters:
* hTree - obvious
* NumNodes - Number of child nodes to be created at each node
* NumLeaves - Number of leaves to be created at each node
* MaxDepth - Maximum depth (1.1.1.1.1.....)
* CurDepth - Current depth
* acBuffer - String to be used for TREEVIEW items
* p - Pointer into to string to be used for numbering
*
* Return value:
* 0 on success, 1 on error
*/
static int _FillNode(WM_HWIN hTree, TREEVIEW_ITEM_Handle hNode, int NumNodes, int NumLeaves, int MaxDepth, int CurDepth, char * acBuffer, char * p) {
TREEVIEW_ITEM_Handle hItem;
int i;
int Position;
hItem = 0;
*(p + 1) = 0;
*p = '0' - 1;
if (--CurDepth) {
//
// Create nodes
//
for (i = 0; i < NumNodes; i++) {
(*p)++;
Position = hItem ? TREEVIEW_INSERT_BELOW : TREEVIEW_INSERT_FIRST_CHILD;
hItem = TREEVIEW_ITEM_Create(1, acBuffer, 0);
if (hItem == 0) {
return 1; // Error
}
_NumNodes++;
TREEVIEW_AttachItem(hTree, hItem, hNode, Position);
hNode = hItem;
*(p + 1) = '.';
p += 2;
//
// Recursive call of 'this' function for each node
//
_FillNode(hTree, hNode, NumNodes, NumLeaves, MaxDepth, CurDepth, acBuffer, p);
p -= 2;
*(p + 1) = 0;
}
}
//
// Create leaves
//
for (i = 0; i < NumLeaves; i++) {
(*p)++;
Position = hItem ? TREEVIEW_INSERT_BELOW : TREEVIEW_INSERT_FIRST_CHILD;
hItem = TREEVIEW_ITEM_Create(0, acBuffer, 0);
if (hItem == 0) {
return 1; // Error
}
_NumLeaves++;
TREEVIEW_AttachItem(hTree, hItem, hNode, Position);
hNode = hItem;
}
return 0;
}
/*********************************************************************
*
* _FillNode
*
* Purpose:
* Recursive filling of node
*
* Parameters:
* hTree - obvious
* NumNodes - Number of child nodes to be created at each node
* NumLeaves - Number of leaves to be created at each node
* MaxDepth - Maximum depth (1.1.1.1.1.....)
* CurDepth - Current depth
* acBuffer - String to be used for TREEVIEW items
* p - Pointer into to string to be used for numbering
*
* Return value:
* 0 on success, 1 on error
*/
static int _FillNode(WM_HWIN hTree, TREEVIEW_ITEM_Handle hNode, int NumChildNodes, int NumChildItems, int MaxDepth, int Depth, char * p) {
static char acBuffer[(TREEVIEW_DEPTH << 1) + 1];
TREEVIEW_ITEM_Handle hItem = 0;
int i, j, Position;
if (p == NULL) {
p = acBuffer;
}
*(p + 1) = 0;
*p = '0' - 1;
if (--Depth) {
//
// Create nodes
//
for (i = 0; i < NumChildNodes; i++) {
(*p)++;
Position = hItem ? TREEVIEW_INSERT_BELOW : TREEVIEW_INSERT_FIRST_CHILD;
hItem = TREEVIEW_ITEM_Create(1, acBuffer, 0);
if (hItem == 0) {
return 1; // Error
}
TREEVIEW_AttachItem(hTree, hItem, hNode, Position);
hNode = hItem;
*(p + 1) = '.';
p += 2;
_FillNode(hTree, hNode, NumChildNodes, NumChildItems, MaxDepth, Depth, p);
p -= 2;
*(p + 1) = 0;
}
}
//
// Create leaves
//
for (j = 0; j < NumChildItems; j++) {
(*p)++;
Position = hItem ? TREEVIEW_INSERT_BELOW : TREEVIEW_INSERT_FIRST_CHILD;
hItem = TREEVIEW_ITEM_Create(0, acBuffer, 0);
if (hItem == 0) {
return 1; // Error
}
TREEVIEW_AttachItem(hTree, hItem, hNode, Position);
hNode = hItem;
}
return 0;
}
/**
* @brief scan_files 递归扫描sd卡内的文件
* @param path:初始扫描路径 file_name：指向用来存储文件名的一段空间 hFile:用于记录文件路径的文件指针 hTree 目录树 hNode 目录结点
* hTree == NULL && hNode == NULL 的话，不创建目录树
* @retval result:文件系统的返回值
*/
static FRESULT scan_files (char* path,char* file_name,FIL *hFile,WM_HWIN hTree, TREEVIEW_ITEM_Handle hNode,int *fileNum)
{
FRESULT res; //部分在递归过程被修改的变量，不用全局变量
FILINFO fno;
static uint32_t rw_num = 0; //已读或已写的字节数
//char showname[60]={0};
DIR dir;
int i;
char *fn;
TREEVIEW_ITEM_Handle hItem=0;
#if _USE_LFN
static char lfn[_MAX_LFN * (_DF1S ? 2 : 1) + 1]; //长文件名支持
fno.lfname = lfn;
fno.lfsize = sizeof(lfn);
#endif
res = f_opendir(&dir, path); //打开目录
if (res == FR_OK)
{
i = strlen(path);
for (;;)
{
res = f_readdir(&dir, &fno); //读取目录下的内容
if (res != FR_OK || fno.fname[0] == 0) break; //为空时表示所有项目读取完毕，跳出
#if _USE_LFN
fn = *fno.lfname ? fno.lfname : fno.fname;
#else
fn = fno.fname;
#endif
if (*fn == '.') continue; //点表示当前目录，跳过
if (fno.fattrib & AM_DIR)
{ //目录，递归读取
if(hTree != NULL && hNode != NULL)
{
//hItem = TREEVIEW_ITEM_Create(TREEVIEW_ITEM_TYPE_NODE,showname,0);
hItem = TREEVIEW_ITEM_Create(TREEVIEW_ITEM_TYPE_NODE,fn,0); //目录，创建结点
TREEVIEW_AttachItem(hTree,hItem,hNode,TREEVIEW_INSERT_FIRST_CHILD); //把结点加入到目录树中
}
sprintf(&path[i], "/%s", fn); //合成完整目录名
res = scan_files(path,file_name,hFile,hTree,hItem,fileNum); //递归遍历
if (res != FR_OK)
break; //打开失败，跳出循环
path[i] = 0;
}
else //是文件
{
/* 根据要求是否创建目录树 */
if(hTree != NULL && hNode != NULL) //创建目录树
{
//hItem = TREEVIEW_ITEM_Create(TREEVIEW_ITEM_TYPE_LEAF,showname,0);
hItem = TREEVIEW_ITEM_Create(TREEVIEW_ITEM_TYPE_LEAF,fn,0); //文件，创建树叶
TREEVIEW_AttachItem(hTree,hItem,hNode,TREEVIEW_INSERT_FIRST_CHILD); //把树叶添加到目录树
if (strlen(path)+strlen(fn)<BROWSER_FILE_NAME_LEN)
{
sprintf(file_name, "%s/%s", path,fn);
//存储文件名到filelist(含路径)
res = f_lseek (hFile, hItem*BROWSER_FILE_NAME_LEN);
res = f_write (hFile, file_name, BROWSER_FILE_NAME_LEN, &rw_num);
//printf("\nfileItem=%ld:%s",hItem,file_name);
}
}
}//else
} //for
}
return res;
}
