135 lines
3.5 KiB
C
135 lines
3.5 KiB
C
#include <string.h>
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#include "sysdefs.h"
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#include "lcd/lcd.h"
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#include "lcd/fonts/smallfonts.h"
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#include "lcd/print.h"
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#include "filesystem/ff.h"
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#include "basic/basic.h"
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#define FLEN 13
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/* if count is 0xff (-1) do not fill files and return the count instead */
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int getFiles(char files[][FLEN], uint8_t count, uint16_t skip, const char *ext)
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{
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DIR dir; /* Directory object */
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FILINFO Finfo;
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FRESULT res;
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int pos = 0;
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int extlen = strlen(ext);
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res = f_opendir(&dir, "0:");
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if(res){
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//lcdPrint("OpenDir:"); lcdPrintln(f_get_rc_string(res)); lcdRefresh();
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return 0;
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};
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while(f_readdir(&dir, &Finfo) == FR_OK && Finfo.fname[0]){
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int len=strlen(Finfo.fname);
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if(len<extlen)
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continue;
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if( strcmp(Finfo.fname+len-extlen, ext) != 0)
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continue;
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if (Finfo.fattrib & AM_DIR)
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continue;
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if( skip>0 ){
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skip--;
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continue;
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};
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if(count != 0xff)
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strcpy(files[pos],Finfo.fname);
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pos++;
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if( pos == count )
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break;
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}
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return pos;
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}
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#define PERPAGE 7
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int selectFile(char *filename, const char *extension)
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{
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int skip = 0;
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char key;
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int selected = 0;
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int file_count = getFiles(NULL, 0xff, 0, extension);
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font=&Font_7x8;
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if(!file_count){
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lcdPrintln("No Files?");
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lcdRefresh();
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getInputWait();
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getInputWaitRelease();
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return -1;
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};
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while(1){
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char files[PERPAGE][FLEN];
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int count = getFiles(files, PERPAGE, skip, extension);
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if(count<PERPAGE && selected==count){
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skip--;
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continue;
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};
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redraw:
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lcdClear();
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lcdPrintln("Select file:");
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for(int i=0; i<count; i++){
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if( selected == i )
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lcdPrint("*");
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else
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lcdPrint(" ");
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lcdSetCrsrX(14);
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int dot=-1;
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for(int j=0;files[j];j++)
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if(files[i][j]=='.'){
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files[i][j]=0;
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dot=j;
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break;
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};
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lcdPrintln(files[i]);
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if(dot>0)
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files[i][dot]='.';
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}
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lcdRefresh();
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key=getInputWaitRepeat();
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switch(key){
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case BTN_DOWN:
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if( selected < count-1 ){
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selected++;
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goto redraw;
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}else{
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if(skip == file_count - PERPAGE) { // wrap to top
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selected = 0;
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skip = 0;
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} else
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skip++;
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}
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break;
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case BTN_UP:
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if( selected > 0 ){
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selected--;
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goto redraw;
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}else{
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if( skip > 0 ){
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skip--;
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} else { // wrap to bottom
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skip = file_count - PERPAGE;
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if(skip < 0) skip = 0;
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selected = file_count - skip - 1;
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}
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}
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break;
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case BTN_LEFT:
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getInputWaitRelease();
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return -1;
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case BTN_ENTER:
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case BTN_RIGHT:
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strcpy(filename, files[selected]);
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getInputWaitRelease();
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return 0;
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}
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}
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}
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