dirview.cpp

来自「Yet another mp3 player, but this time us」· C++ 代码 · 共 76 行

#include "dirview.h"


CDirView::Paint( )
{
char* p_select;
int n = g_db.GetPageEnts();
int s = g_db.GetSelected();
CString* pde = g_db.GetPage();
int c;
char buffer[1024];
char* p;
int l;
int xofs;

   if (!n) {
      vga->FontWarn();
      sprintf( buffer, " <EMPTY DIRECTORY> " );
      writexy( 0,0, buffer );
   }
   
   /* page zero-based */
   for (int i=0;i<n;i++) {
      if ((i==s) && hasfocus) {
         vga->FontHigh();
            p_select = g_db.GetScrolledSelected( &xofs );
         if (p_select)
            sprintf( buffer, "  %s", p_select );
         else  // no scroll.
            sprintf( buffer, "  %s", pde->GetName() );
      } else {
         vga->FontNormal();
         sprintf( buffer, "  %s", pde->GetName() );
      }
      if ((i!=s) || (!hasfocus) || (!p_select)) {  // normal write 
         if (strlen(buffer)>20) buffer[20] = 0;
         writexy( 10, 10*i, buffer );
      } else {  // clip and scroll. 
         if (strlen(buffer)>21) buffer[21] = 0;
         writexy( 4+xofs, 10*i, buffer );
      }
      pde++;
   }
   vga->FontNormal();
}


int CDirView::ProcessMessages()
// Check for key input.
// If unrecognised return the key for further processing, 
// otherwise perform action.
{
int k=0;
     if (!hasfocus) return 0;
     k = vga->getkey();
     if (k==vga->KCurLeft) {
        k=0; g_db.left(); 
     } else if (k==vga->KEnter) {
        k=0;
        char* fi = g_db.enter();
        if (fi) { g_pl->Add( fi ); } 
     } else if (k==vga->KCurUp) {
        k=0; g_db.up();
     } else if (k==vga->KCurDown) {
        k=0; g_db.down();
     } else if (k==vga->KPgUp) {
        k=0; g_db.uplots();
     } else if (k==vga->KPgDn) {
        k=0; g_db.downlots();
     } else {
        // unhandled key
     }
     return k;
}