From 47513bd32c256c4f35e3a8ced7d9fd7e15903530 Mon Sep 17 00:00:00 2001
From: Benji Dial <benji6283@gmail.com>
Date: Tue, 16 Feb 2021 20:38:53 -0500
Subject: terminal application with ipc, shift+pause state dumper, hello world
 for terminal, meminfo popup program

---
 src/user/libterm/terminal.c | 179 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 179 insertions(+)
 create mode 100644 src/user/libterm/terminal.c

(limited to 'src/user/libterm/terminal.c')

diff --git a/src/user/libterm/terminal.c b/src/user/libterm/terminal.c
new file mode 100644
index 0000000..387d63f
--- /dev/null
+++ b/src/user/libterm/terminal.c
@@ -0,0 +1,179 @@
+#include <libterm/command.h>
+
+#include <knob/format.h>
+#include <knob/block.h>
+#include <knob/ipc.h>
+
+_task_handle_t term_task;
+
+void term_set_dimensions(uint32_t width, uint32_t height) {
+  struct terminal_command cmd = {
+    .kind = SET_DIMENSIONS,
+    .as_coords = {
+      .x = width,
+      .y = height
+    }
+  };
+
+  try_send_command(&cmd);
+}
+
+void term_get_dimensions(uint32_t *width, uint32_t *height) {
+  struct terminal_command cmd = {
+    .kind = GET_DIMENSIONS
+  };
+
+  if (try_send_command(&cmd)) {
+    union terminal_response rs;
+    if (try_get_response(&rs)) {
+      *width = rs.as_coords.x;
+      *height = rs.as_coords.y;
+    }
+  }
+}
+
+void term_paint() {
+  struct terminal_command cmd = {
+    .kind = PAINT
+  };
+
+  try_send_command(&cmd);
+}
+
+void term_clear() {
+  struct terminal_command cmd = {
+    .kind = CLEAR
+  };
+
+  try_send_command(&cmd);
+}
+
+void term_set_color(uint8_t fg, uint8_t bg) {
+  struct terminal_command cmd = {
+    .kind = SET_COLOR,
+    .as_color = {
+      .fg = fg,
+      .bg = bg
+    }
+  };
+
+  try_send_command(&cmd);
+}
+
+void term_set_cursor(uint32_t new_y, uint32_t new_x) {
+  struct terminal_command cmd = {
+    .kind = SET_CURSOR,
+    .as_coords = {
+      .y = new_y,
+      .x = new_x
+    }
+  };
+
+  try_send_command(&cmd);
+}
+
+void term_cursor_left() {
+  struct terminal_command cmd = {
+    .kind = CURSOR_LEFT
+  };
+
+  try_send_command(&cmd);
+}
+
+void term_cursor_right() {
+  struct terminal_command cmd = {
+    .kind = CURSOR_RIGHT
+  };
+
+  try_send_command(&cmd);
+}
+
+void term_cursor_up() {
+  struct terminal_command cmd = {
+    .kind = CURSOR_UP
+  };
+
+  try_send_command(&cmd);
+}
+
+void term_cursor_down() {
+  struct terminal_command cmd = {
+    .kind = CURSOR_DOWN
+  };
+
+  try_send_command(&cmd);
+}
+
+void term_add_char(char ch) {
+  struct terminal_command cmd = {
+    .kind = ADD_CHAR,
+    .as_char = ch
+  };
+
+  try_send_command(&cmd);
+}
+
+void term_add_sn_no_ww(const char *s, uint32_t n) {
+  struct terminal_command cmd = {
+    .kind = ADD_SN_NO_WORDWRAP,
+    .as_uint = n
+  };
+
+  if (try_send_command(&cmd))
+    try_send_ipc(term_task, s, n);
+}
+
+void term_add_sz_no_ww(const char *sz) {
+  term_add_sn_no_ww(sz, strlen(sz));
+}
+
+void term_add_sz(const char *sz) {
+  const uint32_t len = strlen(sz);
+
+  struct terminal_command cmd = {
+    .kind = ADD_SN,
+    .as_uint = len
+  };
+
+  if (try_send_command(&cmd))
+    try_send_ipc(term_task, sz, len);
+}
+
+void term_addf_no_ww_v(const char *fmt, va_list args) {
+  char *const msg = format_v(fmt, args);
+  term_add_sz_no_ww(msg);
+  free_block(msg);
+}
+
+void term_addf_no_ww(const char *fmt, ...) {
+  va_list args;
+  va_start(args, fmt);
+  term_addf_no_ww_v(fmt, args);
+  va_end(args);
+}
+
+void term_addf_v(const char *fmt, va_list args) {
+  char *const msg = format_v(fmt, args);
+  term_add_sz(msg);
+  free_block(msg);
+}
+
+void term_addf(const char *fmt, ...) {
+  va_list args;
+  va_start(args, fmt);
+  term_addf_v(fmt, args);
+  va_end(args);
+}
+
+struct key_packet term_get_key_blocking() {
+  struct terminal_command cmd = {
+    .kind = GET_KEY
+  };
+
+  try_send_command(&cmd);
+
+  union terminal_response rs;
+  try_get_response(&rs);
+
+  return rs.as_key;
+}
-- 
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