bugfixes, new scaling, double ym upd at 940

[picodrive.git] / platform / win32 / GenaDrive / FileMenu.cpp

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#include "app.h"\r
#include "FileMenu.h"\r
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class FileMenu FileMenu;\r
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FileMenu::FileMenu()\r
{\r
  memset(this,0,sizeof(*this));\r
}\r
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int FileMenu::init()\r
{\r
  memset(this,0,sizeof(*this));\r
  strcpy(currentPath,HOME "roms");\r
\r
  return 0;\r
}\r
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int FileMenu::scan()\r
{\r
  char path[260];\r
\r
  memset(path,0,sizeof(path));\r
\r
  // Scan for all the roms in the current directory:\r
  nameReset();\r
\r
  sprintf(path,"%.240s\\*.bin", currentPath); nameFind(path);\r
  sprintf(path,"%.240s\\*.smd", currentPath); nameFind(path);\r
  sprintf(path,"%.240s\\*.zip",currentPath); nameFind(path);\r
\r
  return 0;\r
}\r
\r
void FileMenu::exit()\r
{\r
  free(nameList);\r
  memset(this,0,sizeof(*this));\r
}\r
\r
int FileMenu::render()\r
{\r
  int x=0,y=0;\r
  int pos=0,index=0;\r
  WCHAR text[64];\r
  int height=24;\r
\r
  memset(text,0,sizeof(text));\r
\r
  x=120; y=224;\r
  y-=(choiceFocus*height)>>8;\r
\r
  while (pos<nameSize)\r
  {\r
    char *name=NULL;\r
\r
    name=nameList+pos;\r
\r
    if (y>-height && y<MainHeight)\r
    {\r
      unsigned int colour=0xffffff;\r
\r
      // If this line is visible:\r
      wsprintfW(text,L"%.42S",name);\r
      if (index==(choiceFocus>>8)) colour=0x00ff40;\r
\r
      FontSetColour(colour);\r
      FontText(text,x,y);\r
    }\r
        \r
    y+=height;\r
    pos+=strlen(name)+1; // Skip to next string\r
    index++;\r
  }\r
\r
  return 0;\r
}\r
\r
int FileMenu::scroll(int amount)\r
{\r
  int max=0;\r
\r
  choiceFocus+=amount;\r
\r
  max=nameCount<<8;\r
  if (choiceFocus<0) choiceFocus=0;\r
  if (choiceFocus>=max) choiceFocus=max-1;\r
\r
  return 0;\r
}\r
\r
// Get the currently highlighted filename\r
int FileMenu::getFilePath(char *path)\r
{\r
  int focus=0;\r
  int pos=0;\r
  char *name=NULL;\r
\r
  // Find where the user is focused\r
  focus=choiceFocus>>8;\r
  pos=nameOffset(focus); if (pos<0) return 1;\r
\r
  name=nameList+pos;\r
\r
  // Return path and name:\r
  sprintf(path,"%.128s\\%.128s",currentPath,name);\r
  return 0;\r
}\r
\r
// ----------------------------------------------------------------------\r
int FileMenu::nameReset()\r
{\r
  free(nameList); nameList=NULL;\r
  nameSize=nameMax=nameCount=0;\r
\r
  return 0;\r
}\r
\r
int FileMenu::nameFind(char *path)\r
{\r
  HANDLE find=NULL;\r
  WIN32_FIND_DATA wfd;\r
 \r
  memset(&wfd,0,sizeof(wfd));\r
\r
  find=FindFirstFile(path,&wfd);\r
  if (find==INVALID_HANDLE_VALUE) return 1;\r
  \r
  for (;;)\r
  {\r
    nameAdd(wfd.cFileName); // Add the name to the list\r
\r
    if (FindNextFile(find,&wfd)==0) break;\r
  }\r
\r
  FindClose(find);\r
  return 0;\r
}\r
\r
int FileMenu::nameAdd(char *entry)\r
{\r
  int len=0;\r
\r
  len=strlen(entry);\r
  // Check we have room for this entry:\r
  if (nameSize+len+1>nameMax) nameSizeUp();\r
  if (nameSize+len+1>nameMax) return 1;\r
\r
  // Add entry with zero at the end:\r
  memcpy(nameList+nameSize,entry,len);\r
  nameSize+=len+1;\r
  nameCount++;\r
\r
  return 0;\r
}\r
\r
int FileMenu::nameSizeUp()\r
{\r
\r
  void *mem=NULL;\r
  int add=256;\r
\r
  // Allocate more memory for the list:\r
  mem=realloc(nameList,nameMax+add); if (mem==NULL) return 1;\r
\r
  nameList=(char *)mem;\r
  memset(nameList+nameMax,0,add); // Blank new memory\r
  nameMax+=add;\r
  return 0;\r
}\r
\r
int FileMenu::nameOffset(int index)\r
{\r
  int pos=0,i=0;\r
\r
  while (pos<nameSize)\r
  {\r
    char *name=nameList+pos;\r
\r
    if (i==index) return pos;\r
\r
    pos+=strlen(name)+1; // Skip to next string\r
    i++;\r
  }\r
\r
  return -1; // Unknown index\r
}\r