2 files changed, 101 insertions, 0 deletions
diff --git a/wm.c b/wm.c
new file mode 100644
index 0000000..2b7270c
--- /dev/null
+++ b/wm.c
@@ -0,0 +1,71 @@
+#include "wm.h"
+
+#include <ncurses.h>
+#include <string.h>
+
+#include "err.h"
+#include "mem.h"
+
+window *wm_create_new_w(terminal *t, const char *name, int height, int width,
+                        int start_y, int start_x) {
+    if (t->w_count >= WINDOWS_MAX) {
+        die("Windows count has arrived max");
+    }
+
+    WINDOW *win;
+    win = derwin(t->windows[0]->win, height, width, start_y, start_x);
+
+    int current_idx = t->w_count;
+
+    strncpy(t->windows[current_idx]->name, name, 31);
+    t->windows[current_idx]->win = win;
+    t->windows[current_idx]->start_y = start_y;
+    t->windows[current_idx]->start_x = start_x;
+    t->windows[current_idx]->width = width;
+    t->windows[current_idx]->height = height;
+
+    t->w_count++;
+
+    return t->windows[current_idx];
+}
+
+terminal *wm_init(void) {
+    terminal *t = xmalloc(sizeof(terminal));
+    t->windows = xmalloc(sizeof(window *) * WINDOWS_MAX);
+    for (int i = 0; i < WINDOWS_MAX; i++) {
+        t->windows[i] = xmalloc(sizeof(window));
+    }
+    t->w_count = 0;
+    getmaxyx(stdscr, t->maxy, t->maxx);
+    t->windows[0]->win = newwin(t->maxy, t->maxx, 0, 0);
+    t->windows[t->w_count]->start_y = 0;
+    t->windows[t->w_count]->start_x = 0;
+    t->windows[t->w_count]->height = t->maxy;
+    t->windows[t->w_count]->width = t->maxx;
+    t->w_count++;
+
+    return t;
+}
+
+int wm_fd_w_by_name(terminal *t, const char *name) {
+    for (int i = 0; i < t->w_count; i++) {
+        if (strcmp(t->windows[i]->name, name) == 0) continue;
+        return i;
+    }
+
+    return -1;
+}
+
+void wm_refresh_all(terminal *t) {
+    if (t->windows[0] && t->windows[0]->win) {
+        touchwin(t->windows[0]->win);
+    }
+
+    for (int i = 1; i < t->w_count; i++) {
+        if (t->windows[i] && t->windows[i]->win) {
+            wnoutrefresh(t->windows[i]->win);
+        }
+    }
+
+    doupdate();
+}
diff --git a/wm.h b/wm.h
new file mode 100644
index 0000000..ebef53a
--- /dev/null
+++ b/wm.h
@@ -0,0 +1,30 @@
+#ifndef SF_WM_H
+#define SF_WM_H
+
+#include <ncurses.h>
+
+#define WINDOWS_MAX 15
+
+typedef struct {
+    WINDOW *win;
+    char name[32];
+    int height;
+    int width;
+    int start_x;
+    int start_y;
+} window;
+
+typedef struct {
+    window **windows; /* windows[0] is root_win */
+    int w_count;      /* index of windows */
+    int maxy;
+    int maxx;
+} terminal;
+
+terminal *wm_init(void);
+window *wm_create_new_w(terminal *t, const char *name, int width, int height,
+                        int start_y, int start_x);
+int wm_fd_w_by_name(terminal *t, const char *name);
+void wm_refresh_all(terminal *t);
+
+#endif /* SF_WM_H */