lcd128menu.cpp

00001 //
00002 // MBED Application Board
00003 // Lightweight Menu-driven Interface
00004 // 2014, Alexander Medvedev, @medvdv
00005 //
00006 
00007 #include "mbed.h"
00008 
00009 #include "lcd128lib.h"
00010 #include "lcd128menu.h"
00011 
00012 /*
00013 #define APPMENU_END      0      // End of menu
00014 #define APPMENU_ACTION   1      // Standart item - action
00015 #define APPMENU_BREAK    2      // Break line "----"
00016 #define APPMENU_SUBMENU  3      // Enter to other menu
00017 #define APPMENU_COMMENT  4      // Text comment, not active    
00018 #define APPMENU_CHECK    5      // Check box
00019 #define APPMENU_RADIO    6      // One of radio buttons
00020 #define APPMENU_NUMBER   7      // Integer number [minimum +step +2step ... maximum]
00021 #define APPMENU_PROGRESS 8      // Float level [0.0 .. 1.0]
00022 */
00023 
00024 #define APPMENU_WIDTH (LCD_X-APPMENU_TAB*2)
00025 
00026 void lcd128draw(lcd128 * lcd, lcd128entry * entry, int row)
00027 {
00028     lcd->XY(APPMENU_TAB, row);
00029     
00030     lcd->Bold(entry->bold);
00031     lcd->Underline(entry->underline);
00032     
00033     switch (entry->type) {
00034         case 0:
00035         default: 
00036             break;
00037         
00038         case 3:
00039             lcd->Character(LCD_PLAY);         
00040         case 1:
00041         case 4:
00042             lcd->String(entry->name); 
00043             break;
00044         
00045         case 2: 
00046             lcd->Write(APPMENU_DELIMITER, entry->bold ? APPMENU_WIDTH/2 : APPMENU_WIDTH ); 
00047             break; 
00048             
00049         case 5: 
00050             lcd->Character( ((bool*)entry->parameter)[0] ? LCD_CHECK_ON : LCD_CHECK_OFF );
00051             lcd->Character(LCD_SHORT_SPACE);
00052             lcd->String(entry->name); 
00053             break;
00054 
00055         case 6: 
00056             lcd->Character( (((int*)entry->parameter)[0] == entry->id) ? LCD_RADIO_ON : LCD_RADIO_OFF );
00057             lcd->Character(LCD_SHORT_SPACE);
00058             lcd->String(entry->name); 
00059             break;
00060             
00061         case 8:
00062             lcd->Bar(entry->bold ? APPMENU_WIDTH/2 : APPMENU_WIDTH, *(float*)entry->parameter);
00063             break;
00064     }
00065 
00066     lcd->Bold(false);
00067     lcd->Underline(false);
00068 }
00069 
00070 int lcd128menu(lcd128 * lcd, lcd128entry * menu, int N, bool LastRow, 
00071                PinName pUp, PinName pDown, PinName pLeft, PinName pRight, PinName pFire)
00072 {
00073     if (N <= 0) return -1;
00074     
00075     BusIn joy(pUp, pDown, pLeft, pRight);
00076     DigitalIn fire(pFire);
00077 
00078     lcd128entry * menuCurrent = menu;
00079     int item = 0;    
00080 
00081     do {
00082             
00083         lcd -> Clear();
00084         
00085         lcd128draw(lcd, menuCurrent + item, 1);
00086                                         
00087         if (item > 0)     lcd128draw(lcd, menuCurrent + item - 1, 0);
00088         if (item < (N-1)) lcd128draw(lcd, menuCurrent + item + 1, 2);
00089         if (item < (N-2)) if (LastRow) lcd128draw(lcd, menuCurrent + item + 2, 3);
00090         
00091         lcd -> InverseRow(1);
00092         lcd -> InverseRow(0, 0x80);
00093         
00094         lcd -> Update();
00095         
00096         wait_ms(100);
00097 
00098         while((joy == 0) && (fire == 0)) wait_ms(100);
00099         
00100         if (joy & 1) if(item > 0) item--; 
00101         if (joy & 2) if(item < (N-1)) item++; 
00102                         
00103     } while(1);
00104 }