# HG changeset patch
# User Michiel Broek <mbroek@mbse.eu>
# Date 1447011004 -3600
# Node ID d9b7e0705f56037e07fb44b048b398e387734706
# Parent  0fa885045e20aa01d454754ec190fe2270174cce
Added cursor control, but no blinking yet.

diff -r 0fa885045e20 -r d9b7e0705f56 brewpanel/sdlgui.c
--- a/brewpanel/sdlgui.c	Sun Nov 08 17:55:50 2015 +0100
+++ b/brewpanel/sdlgui.c	Sun Nov 08 20:30:04 2015 +0100
@@ -223,18 +223,20 @@
 /*
  * Draw the cursor
  */
-void SDLGui_Cursor(int x, int y)
+void SDLGui_Cursor(int x, int y, int on, int blink)
 {
     SDL_Rect	dr;
     Uint32      color = SDL_MapRGB(pSdlGuiScrn->format, 53, 59, 61);
 
-    dr.x=x;
-    dr.y=y;
-    dr.w=fontwidth;
-    dr.h=fontheight;
+    if (on) {
+    	dr.x = x;
+    	dr.y = y + fontheight - 2;
+    	dr.w = fontwidth;
+    	dr.h = 2;
 
-    SDL_FillRect(pSdlGuiScrn, &dr, color);
-    SDL_UpdateRect(pSdlGuiScrn, x, y, fontwidth, fontheight);
+    	SDL_FillRect(pSdlGuiScrn, &dr, color);
+    	SDL_UpdateRect(pSdlGuiScrn, x, y, fontwidth, fontheight);
+    }
 }
 
 
diff -r 0fa885045e20 -r d9b7e0705f56 brewpanel/sdlgui.h
--- a/brewpanel/sdlgui.h	Sun Nov 08 17:55:50 2015 +0100
+++ b/brewpanel/sdlgui.h	Sun Nov 08 20:30:04 2015 +0100
@@ -45,7 +45,7 @@
 
 
 
-void SDLGui_Cursor(int x, int y);
+void SDLGui_Cursor(int x, int y, int on, int blink);
 void SDLGui_Char(int x, int y, Uint8 c, int);
 int  SDLGui_Init(void);
 int  SDLGui_UnInit(void);
diff -r 0fa885045e20 -r d9b7e0705f56 brewpanel/slcd.c
--- a/brewpanel/slcd.c	Sun Nov 08 17:55:50 2015 +0100
+++ b/brewpanel/slcd.c	Sun Nov 08 20:30:04 2015 +0100
@@ -33,25 +33,24 @@
 
 // HD44780U Commands
 
-#define SLCD_CLEAR       0x01
-#define SLCD_HOME        0x02
-#define SLCD_ENTRY       0x04
-#define SLCD_CTRL        0x08
-#define SLCD_CDSHIFT     0x10
-#define SLCD_FUNC        0x20
-#define SLCD_CGRAM       0x40
-#define SLCD_DGRAM       0x80
+//#define SLCD_CLEAR       0x01
+//#define SLCD_HOME        0x02
+//#define SLCD_ENTRY       0x04
+//#define SLCD_CTRL        0x08
+//#define SLCD_CDSHIFT     0x10
+//#define SLCD_FUNC        0x20
+//#define SLCD_CGRAM       0x40
+//#define SLCD_DGRAM       0x80
 
 // // Bits in the entry register
 //
 // #define LCD_ENTRY_SH            0x01
 // #define LCD_ENTRY_ID            0x02
-//
-// // Bits in the control register
-//
-// #define LCD_BLINK_CTRL          0x01
-// #define LCD_CURSOR_CTRL         0x02
-// #define LCD_DISPLAY_CTRL        0x04
+
+// Bits in the control register
+#define SLCD_BLINK_CTRL         0x01
+#define SLCD_CURSOR_CTRL        0x02
+#define SLCD_DISPLAY_CTRL       0x04
 
 
 struct slcdDataStruct
@@ -65,21 +64,11 @@
     int		cx;		/* Cursor x position		*/
     int		cy;		/* Cursor y position		*/
     Uint8	cgram[8][8];	/* Characters in CGRAM		*/
+    int		control;	/* Control register		*/
 };
 struct slcdDataStruct *slcds [MAX_SLCDS] ;
 
 
-/* Low level */
-
-void sendDataCmd (struct slcdDataStruct *slcd, unsigned char data)
-{
-}
-
-
-void putCommand (struct slcdDataStruct *slcd, unsigned char command)
-{
-}
-
 
 
 void slcdHome(int fd)
@@ -87,6 +76,7 @@
     struct slcdDataStruct *lcd = slcds [fd];
 
     lcd->cx = lcd->cy = 0;
+    SDLGui_Cursor(lcd->x + (lcd->cx * 12) + 12, lcd->y + (lcd->cy * 18) + 8, lcd->control & SLCD_CURSOR_CTRL, lcd->control & SLCD_BLINK_CTRL);
 }
 
 
@@ -94,32 +84,51 @@
 void slcdClear(int fd)
 {
     struct slcdDataStruct *lcd = slcds [fd];
+    int	i;
 
     lcd->cx = lcd->cy = 0;
+    for (i = 0; i < (lcd->cols * lcd->rows); i++)
+	slcdPutchar(fd, ' ');
+    lcd->cx = lcd->cy = 0;
+    SDLGui_Cursor(lcd->x + (lcd->cx * 12) + 12, lcd->y + (lcd->cy * 18) + 8, lcd->control & SLCD_CURSOR_CTRL, lcd->control & SLCD_BLINK_CTRL);
 }
 
 
 
 void slcdDisplay(int fd, int state)
 {
+    struct slcdDataStruct *lcd = slcds [fd];
+
+    if (state)
+	lcd->control |= SLCD_DISPLAY_CTRL;
+    else
+	lcd->control &= ~SLCD_DISPLAY_CTRL;
 }
 
 
 
 void slcdCursor(int fd, int state)
 {
+    struct slcdDataStruct *lcd = slcds [fd];
+
+    if (state)
+	lcd->control |= SLCD_CURSOR_CTRL;
+    else
+	lcd->control &= ~SLCD_CURSOR_CTRL;
+    SDLGui_Cursor(lcd->x + (lcd->cx * 12) + 12, lcd->y + (lcd->cy * 18) + 8, lcd->control & SLCD_CURSOR_CTRL, lcd->control & SLCD_BLINK_CTRL);
 }
 
 
 
 void slcdCursorBlink(int fd, int state)
 {
-}
-
+    struct slcdDataStruct *lcd = slcds [fd];
 
-
-void slcdSendCommand(int fd, Uint8 command)
-{
+    if (state)
+	lcd->control |= SLCD_BLINK_CTRL;
+    else
+	lcd->control &= ~SLCD_BLINK_CTRL;
+    SDLGui_Cursor(lcd->x + (lcd->cx * 12) + 12, lcd->y + (lcd->cy * 18) + 8, lcd->control & SLCD_CURSOR_CTRL, lcd->control & SLCD_BLINK_CTRL);
 }
 
 
@@ -133,10 +142,9 @@
     if ((y > lcd->rows) || (y < 0))
 	return ;
 
-    // putCommand (lcd, x + (LCD_DGRAM | rowOff [y])) ;
-
     lcd->cx = x ;
     lcd->cy = y ;
+    SDLGui_Cursor(lcd->x + (lcd->cx * 12) + 12, lcd->y + (lcd->cy * 18) + 8, lcd->control & SLCD_CURSOR_CTRL, lcd->control & SLCD_BLINK_CTRL);
 }
 
 
@@ -164,7 +172,7 @@
 	if (++lcd->cy == lcd->rows)
 	    lcd->cy = 0;
     }
-    SDLGui_Cursor(lcd->x + (lcd->cx * 12) + 12, lcd->y + (lcd->cy * 18) + 8);
+    SDLGui_Cursor(lcd->x + (lcd->cx * 12) + 12, lcd->y + (lcd->cy * 18) + 8, lcd->control & SLCD_CURSOR_CTRL, lcd->control & SLCD_BLINK_CTRL);
 }
 
 
@@ -230,6 +238,7 @@
     for (i = 0; i < 8; i++)
 	for (j = 0; j < 8; j++)
 	    lcd->cgram[i][j] = 0;
+    lcd->control = 0;
 
     slcds[fd] = lcd;
 
@@ -244,6 +253,11 @@
     for (i = 0; i < lcd->cols; i++)
 	slcdPutchar(fd, 0x0ff);
 
+    slcdDisplay(fd, TRUE);
+    slcdCursor(fd, FALSE);
+    slcdCursorBlink(fd, FALSE);
+    slcdClear(fd);
+
     return fd;
 }