1 files changed, 64 insertions, 0 deletions
diff --git a/interface/dialog.py b/interface/dialog.py
new file mode 100644
index 0000000..18ecb34
--- /dev/null
+++ b/interface/dialog.py
@@ -0,0 +1,64 @@
+import curses
+
+from .globals import CURSES_LOCK
+
+def split_words(s, l):
+    lines = []
+    while len(s) > l:
+        work = s[:l]
+        for i in reversed(range(l)):
+            if work[i] in ' -_':
+                lines.append(s[:i+1])
+                s = s[i+1:]
+                break
+        else:
+            lines.append(work)
+            s = s[l:]
+    if s:
+        lines.append(s)
+
+    return lines
+
+def askyesnocancel(stdscr, msg, title="Confirm", resize=None):
+    height, width = stdscr.getmaxyx()
+
+    thiswidth = min(width, 40)
+
+    posx = (width // 2) - (thiswidth // 2)
+    lines = split_words(msg, thiswidth-2)
+    thisheight = len(lines) + 3
+    posy = (height // 2) - (thisheight // 2)
+
+    if thisheight > height:
+        raise ValueError("Not enough room")
+
+    win = curses.newwin(thisheight, thiswidth, posy, posx)
+    win.border()
+    win.addstr(0, (thiswidth // 2) - (len(title) // 2), title)
+    win.keypad(True)
+    
+    for n, l in enumerate(lines, 1):
+        win.addstr(n, 1, l)
+
+    win.addstr(thisheight-2, 1, "[Y]es, [N]o, [C]ancel")
+
+    win.refresh()
+
+    curses.curs_set(0)
+
+    while True:
+        l = win.getch()
+
+        if l == curses.KEY_RESIZE:
+            if resize is not None:
+                resize()
+            return askyesnocancel(stdscr, msg, title=title, resize=resize)
+        elif l in (ord('y'), ord('Y')):
+            win.erase()
+            return True
+        elif l in (ord('n'), ord('N')):
+            win.erase()
+            return False
+        elif l in (ord('c'), ord('C')):
+            win.erase()
+            return None