[lcd4linux @ 2001-03-09 13:08:11 by ltoetsch]

Added Text driver

1 files changed, 209 insertions, 0 deletions

diff --git a/Text.c b/Text.c
new file mode 100644
index 0000000..f20efba
--- /dev/null
+++ b/Text.c
@@ -0,0 +1,209 @@
+/* $Id: Text.c,v 1.1 2001/03/09 13:08:11 ltoetsch Exp $
+ *
+ * pure ncurses based text driver
+ *
+ * Copyright 2001 by Leopold Tötsch (lt@toetsch.at)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * $Log: Text.c,v $
+ * Revision 1.1  2001/03/09 13:08:11  ltoetsch
+ * Added Text driver
+ *
+ *
+ */
+
+/* 
+ *
+ * exported fuctions:
+ *
+ * struct LCD Text[]
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <curses.h>
+
+#ifdef STANDALONE
+
+int main(int argc, char *argv[]) 
+{
+  WINDOW *w;
+  int x,y;
+  
+  w = initscr();
+  
+  for (x=0; x < 255; x++)
+    addch(acs_map[x]);    
+  refresh();
+  sleep(5);
+  endwin();
+  return 0;
+  
+}
+
+#else
+
+#include <string.h>
+#include "debug.h"
+#include "cfg.h"
+#include "display.h"
+extern int foreground;
+
+static LCD Lcd;
+static WINDOW *w;
+WINDOW *err_win;
+#define BARS ( BAR_R | BAR_H2 )
+int err_rows;
+
+int Text_clear (void)
+{
+  werase(w);
+  box(w, 0, 0);
+  return 0;
+}
+
+int Text_quit(void) {
+  endwin();
+  return 0;
+}
+
+int Text_init (LCD *Self)
+{
+  int cols=-1, rows=-1;
+  int scr_cols, scr_rows;
+  char *s;
+  if (!foreground) {
+    error("Text: you want me to display on /dev/null: sorry, I can't");
+    return -1;
+  }
+  
+  if (sscanf(s=cfg_get("size")?:"20x4", "%dx%d", &cols, &rows)!=2 || rows<1 || cols<1) {
+    error ("Raster: bad size '%s'", s);
+    return -1;
+  }
+  Self->rows=rows;
+  Self->cols=cols;
+  Self->xres=1;
+  Self->yres=1;
+  Lcd=*Self;
+  
+  w = initscr();
+  scr_cols=COLS;
+  scr_rows=LINES;
+  delwin(w);
+  w = newwin(rows+2,cols+2,0,0);
+  err_rows = scr_rows-rows-3;
+  if (err_rows >= 4) {
+    err_win = newwin(err_rows, scr_cols, rows+3, 0);
+    err_rows -= 3;
+    box(err_win, 0, 0);
+    mvwprintw(err_win,0,3, "Stderr:");
+    wmove(err_win, 1 , 0);
+    wrefresh(err_win);
+  }
+  Text_clear();
+  return w ? 0 : -1;
+}
+
+/* ncures scroll SIGSEGVs on my system, so this is a workaroud */
+
+int curs_err(char *buffer) 
+{
+  static int lines;
+  static char *lb[100];
+  int start, i;
+  
+  if (err_win) {
+    if (lines >= err_rows) {
+      free(lb[0]);
+      for (i=1; i<=err_rows; i++) 
+	lb[i-1] = lb[i];
+      start = 0;
+    }
+    else
+      start = lines;
+    lb[lines] = strdup(buffer);
+    for (i=start; i<=lines; i++) {
+      mvwprintw(err_win,i+1,1, "%s", lb[i]);
+      wclrtoeol(err_win);
+    }
+    box(err_win, 0, 0);
+    mvwprintw(err_win,0,3, "Stderr:");
+    wrefresh(err_win);
+    if (lines < err_rows)
+      lines++;
+    return 1;
+  }
+  return 0;
+}
+
+int Text_put (int row, int col, char *text)
+{
+  if (col < Lcd.cols)
+    mvwprintw(w, row+1 , col+1, "%.*s", Lcd.cols-col, text);
+  return 0;
+}
+
+#define min(x,y) (x)<(y)?x:y
+int Text_bar (int type, int row, int col, int max, int len1, int len2)
+{
+  int len, i;
+  if (cfg_get("TextBar")) 
+    mvwprintw(w, row+1 , col+1, "%d %d %d", max, len1, len2);
+  else {
+    len = min(len1, len2);
+    len = min(len, Lcd.cols-col-1);
+    if (len) {
+      wmove(w, row+1 , col+1);
+      for (i=0; i<len;i++)
+        waddch(w,ACS_BLOCK);
+    }
+    col += len;
+    len1 -= len;
+    len2 -= len;
+    len1 = min(len1, Lcd.cols-col-1);
+    for (i=0; i<len1;i++)
+      waddch(w,ACS_S1);
+    len2 = min(len2, Lcd.cols-col-1);
+    for (i=0; i<len2;i++)
+      waddch(w,ACS_S9);
+  }
+  
+  return 0;
+}
+
+int Text_gpo (int num, int val)
+{
+  return 0;
+}
+
+int Text_flush (void)
+{
+  box(w, 0, 0);
+  wrefresh(w);  
+  return 0;
+}
+
+
+LCD Text[] = {
+  { "Text",4,20,1,1,BARS,0,
+      Text_init,Text_clear,Text_put,Text_bar,0,Text_flush,Text_quit },
+  { NULL }
+};
+
+#endif