1 files changed, 69 insertions, 0 deletions
diff --git a/src/line/getter.cc b/src/line/getter.cc
new file mode 100644
index 0000000..2ef9723
--- /dev/null
+++ b/src/line/getter.cc
@@ -0,0 +1,69 @@
+#include "line/getter.h"
+
+#include <cstdio>
+#include <string>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <iostream>
+#include <unistd.h>
+#include <cmath>
+
+#include "line/cursor.h"
+
+
+using namespace std;
+
+namespace ov4
+{
+
+int get_terminal_pos_cursor()
+{
+    return prompt_pos + buffer_index_cursor;
+}
+
+int get_buffer_index_display_begin()
+{
+    return _buffer_index_display_begin;
+}
+
+int get_buffer_index_display_end()
+{
+    int max_possible_end = get_buffer_index_display_begin() + line_buffer.size() - 1;
+    int window_possible_end = get_buffer_index_display_begin() + (window_size_col - prompt_pos) -1;
+    return min(max_possible_end, window_possible_end);
+}
+
+
+T_position get_cursor_position()
+{
+    char c;
+    string buffer;
+    T_position pos;
+    int row, col;
+    tcflush(STDIN_FILENO, TCIFLUSH);
+    cout << "\x1b[6n" << flush;
+    while (read(STDIN_FILENO, &c, 1) == 1)
+    {
+        if (c == 'R') break;
+        buffer += c;
+    }
+    if (buffer.size() <= 2 || buffer[0] != '\x1b' || buffer[1] != '[')
+    {
+        pos.row = -1;
+        pos.col = -1;
+        return pos;
+    }
+    if ((sscanf(buffer.c_str(), "\x1b[%d;%d", &row, &col)) != 2)
+    {
+        pos.row = -1;
+        pos.col = -1;
+        return pos;
+    }
+    pos.row = row;
+    pos.col = col;
+    // print("row {}, col {}\r\n", row, col);
+    // fflush(stdout);
+    return pos;
+} 
+    
+}
+\ No newline at end of file