Start work on line editing

diff --git a/src/form.c b/src/form.c
index 4284eafd3be4908a2cd7019f4ee4ae037cd79f67..cb17dabb9393565fc6fa24eeeb60c79287e94ab7 100644 (file)
--- a/src/form.c
+++ b/src/form.c
@@ -18,9 +18,11 @@
 #define _XOPEN_SOURCE
 #define _XOPEN_SOURCE_EXTENDED
 
+#include <ctype.h>
 #include <string.h>
 #include <ncurses.h>
 
+#include "util.h"
 #include "date.h"
 #include "cal.h"
 #include "view.h"
@@ -254,6 +256,100 @@ static void move_active(form_t *form, int ro, int co)
        }
 }
 
+static void form_edit(void)
+{
+       int cur=0, len=0;
+       char buf[512] = {};
+       int col_size[form->cols];
+
+       field_sizes(form, col_size);
+
+       int rrow = arow;
+       int rcol = 0;
+       int rlen = 0;
+       for (int c = 0; c < form->cols; c++) {
+               if (is_active(form, arow, c))
+                       rlen += col_size[c];
+               else if (rlen == 0)
+                       rcol += col_size[c];
+               else
+                       break;
+       }
+
+       int done = 0;
+       curs_set(true);
+       while (!done) {
+               // Draw
+               int idx = MAX(0, len-(rlen-2));
+               wmove(win, rrow, rcol);
+               wprintw(win, "[%-*.*s]", rlen-2, rlen-2, &buf[idx]);
+               wmove(win, rrow, rcol+1+cur-idx);
+               wrefresh(win);
+
+               // Read next character
+               MEVENT btn;
+               int chr = getch();
+               date_sync();
+               if (chr == KEY_MOUSE)
+                       if (getmouse(&btn) != OK)
+                               continue;
+
+               // Line editing
+               switch (chr) {
+                       case ERR:
+                       case KEY_RESIZE:
+                       case '\14':
+                       case '\7':
+                               //view_run(chr, btn.bstate, btn.y, btn.x);
+                               continue;
+                       case '\012': // Enter
+                               done = 1;
+                               break;
+                       case '\033': // Escape
+                               done = 2;
+                               break;
+                       case KEY_LEFT:
+                               if (cur > 0)
+                                       cur--;
+                               break;
+                       case KEY_RIGHT:
+                               if (cur < len)
+                                       cur++;
+                               break;
+                       case KEY_BACKSPACE:
+                               if (cur > 0) {
+                                       memmove(&buf[cur-1], &buf[cur], (len-cur)+1);
+                                       cur--;
+                                       len--;
+                               }
+                               break;
+                       case KEY_DC:
+                               if (cur < len) {
+                                       memmove(&buf[cur], &buf[cur+1], (len-cur)+1);
+                                       len--;
+                               }
+                               break;
+               }
+
+               // Text input
+               if (isprint(chr)) {
+                       if (len+1 < sizeof(buf)) {
+                               memmove(&buf[cur+1], &buf[cur], (len-cur)+1);
+                               buf[cur] = chr;
+                               cur++;
+                               len++;
+                               //debug("form: cur=%d, len=%d", cur, len);
+                       } else {
+                               debug("form: out of space");
+                       }
+               } else {
+                       debug("form: Unhandled key - Dec %3d,  Hex %02x,  Oct %03o,  Chr <%c>",
+                                       chr, chr, chr, chr);
+               }
+       }
+       curs_set(false);
+}
+
 /* Form functions */
 void form_show(form_t *_form)
 {
@@ -338,6 +434,13 @@ int form_run(int key, mmask_t btn, int row, int col)
                        acol = c;
                        goto redraw;
                }
+
+       // Check editing (enter)
+       if (key == '\012') {
+               form_edit();
+               goto redraw;
+       }
+
        return 0;
 
 redraw: