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[oftp] / src / unix / tgfx.c

diff --git a/src/unix/tgfx.c b/src/unix/tgfx.c
index 4c8955d..f36ecce 100644 (file)
--- a/src/unix/tgfx.c
+++ b/src/unix/tgfx.c
@@ -1,38 +1,192 @@
 #include <curses.h>
 #include "tgfx.h"
+#include "util.h"
+
+struct cpair {
+       int pair;
+       int fg, bg;
+};
+static struct cpair *colors;
+static int num_colors;
+
+static int fgcol, bgcol;
+static int bgchar;
+static int cur_pair;
+static int cur_x, cur_y;
+
+static int curses_color(int col);
+static void upd_color(void);
+
+void tg_init(void)
+{
+       initscr();
+       cbreak();
+       keypad(stdscr, TRUE);
+       nodelay(stdscr, TRUE);
+       noecho();
+       curs_set(0);
+       start_color();
+
+       fgcol = curses_color(TGFX_WHITE);
+       bgcol = curses_color(TGFX_BLACK);
+       bgchar = ' ';
+
+       colors = malloc_nf(COLORS * sizeof *colors);
+       num_colors = 0;
+}
+
+void tg_cleanup(void)
+{
+       endwin();
+}
+
+void tg_redraw(void)
+{
+       move(cur_y, cur_x);
+       refresh();
+}
 
 void tg_clear(void)
 {
+       clear();
 }
 
 
 void tg_fgcolor(int col)
 {
+       fgcol = curses_color(col);
 }
 
 void tg_bgcolor(int col)
 {
+       bgcol = curses_color(col);
 }
 
 void tg_color(int col)
 {
+       fgcol = curses_color(col & 0xf);
+       bgcol = curses_color((col >> 4) & 0xf);
 }
 
 void tg_bgchar(int c)
 {
+       bgchar = c;
 }
 
 
 void tg_setcursor(int x, int y)
 {
+       move(y, x);
+       cur_x = x;
+       cur_y = y;
 }
 
 
 void tg_text(int x, int y, const char *fmt, ...)
 {
+       va_list ap;
+
+       va_start(ap, fmt);
+       tg_vtext(x, y, fmt, ap);
+       va_end(ap);
+}
+
+void tg_vtext(int x, int y, const char *fmt, va_list ap)
+{
+       upd_color();
+       attron(COLOR_PAIR(cur_pair));
+       move(y, x);
+       vw_printw(stdscr, fmt, ap);
+       attroff(COLOR_PAIR(cur_pair));
 }
 
 
 void tg_rect(const char *label, int x, int y, int xsz, int ysz, unsigned int flags)
 {
+       int i;
+
+       upd_color();
+       attron(COLOR_PAIR(cur_pair));
+
+       for(i=0; i<ysz; i++) {
+               move(y + i, x);
+               hline(bgchar, xsz);
+       }
+
+       if(flags & TGFX_FRAME) {
+               move(y, x + 1);
+               hline(ACS_HLINE, xsz - 2);
+               move(y + ysz - 1, x + 1);
+               hline(ACS_HLINE, xsz - 2);
+               move(y + 1, x);
+               vline(ACS_VLINE, ysz - 2);
+               move(y + 1, x + xsz - 1);
+               vline(ACS_VLINE, ysz - 2);
+
+               mvaddch(y, x, ACS_ULCORNER);
+               mvaddch(y, x + xsz - 1, ACS_URCORNER);
+               mvaddch(y + ysz - 1, x, ACS_LLCORNER);
+               mvaddch(y + ysz - 1, x + xsz - 1, ACS_LRCORNER);
+       }
+
+       if(label) {
+               tg_text(x + 2, y, "%s", label);
+       }
+
+       attroff(COLOR_PAIR(cur_pair));
+       refresh();
+}
+
+int tg_gchar(int gchar)
+{
+       switch(gchar) {
+       case TGFX_LARROW:
+               return ACS_LARROW;
+       case TGFX_RARROW:
+               return ACS_RARROW;
+       default:
+               break;
+       }
+       return '@';
+}
+
+static int curses_color(int col)
+{
+       switch(col) {
+       case TGFX_RED:
+               return COLOR_RED;
+       case TGFX_BLUE:
+               return COLOR_BLUE;
+       case TGFX_CYAN:
+               return COLOR_CYAN;
+       case TGFX_YELLOW:
+               return COLOR_YELLOW;
+       default:
+               break;
+       }
+       return col;
+}
+
+static void upd_color(void)
+{
+       int i;
+
+       for(i=0; i<num_colors; i++) {
+               if(fgcol == colors[i].fg && bgcol == colors[i].bg) {
+                       cur_pair = colors[i].pair;
+                       return;
+               }
+       }
+
+       /* not found, allocate a new color pair */
+       if(num_colors >= COLORS) {
+               return;
+       }
+       i = num_colors++;
+       cur_pair = num_colors;
+
+       colors[i].fg = fgcol;
+       colors[i].bg = bgcol;
+       colors[i].pair = cur_pair;
+       init_pair(cur_pair, fgcol, bgcol);
 }