--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/frontends/sortilege/editbox.py	Sat Aug 29 13:34:59 2009 +0200
@@ -0,0 +1,176 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+"""
+sortilege: a SAT frontend
+Copyright (C) 2009  Jérôme Poisson (goffi@goffi.org)
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+
+import curses
+from curses import ascii
+from window import Window
+
+def C(k):
+    """return the value of Ctrl+key"""
+    return ord(ascii.ctrl(k))
+
+def A(k):
+    """return the value of Alt+key"""
+    return ord(ascii.alt(k))
+
+class EditBox(Window):
+    """This class manage the edition of text"""
+
+    def __init__(self, parent, header, code="utf-8"):
+        self.__header=header
+        self.__text = unicode()
+        self.__curs_pos=0
+        self.__buffer=str()
+        self.__replace_mode=False
+        self.__parent=parent
+        self.__code=code
+        
+        Window.__init__(self, self.__parent, 1, self.__parent.getmaxyx()[1], self.__parent.getmaxyx()[0]-1,0, code=code)
+        self.update()
+
+    def registerEnterCB(self, CB):
+        self.__enterCB=CB
+
+    def resizeAdapt(self):
+        """Adapt window size to self.__parent size.
+        Must be called when self.__parent is resized."""
+        self.resize(1, self.__parent.getmaxyx()[1], self.__parent.getmaxyx()[0]-1,0)
+        self.update()
+
+    def __getTextToPrint(self):
+        """return the text printed on the edit line"""
+        width = self.rWidth - len(self.__header) -1
+        if self.__curs_pos<width:
+            begin = 0 
+            end = width
+        else:
+            begin = self.__curs_pos-width
+            end = self.__curs_pos
+        return self.__header+self.__text[begin:end]
+
+    def update(self):
+        Window.update(self)
+        text = self.__getTextToPrint()
+        self.addYXStr(0, 0, text, limit=self.rWidth)
+        
+        self.noutrefresh()
+
+    def __dec_cur(self):
+        """move cursor on the left"""
+        if self.__curs_pos>0:
+            self.__curs_pos = self.__curs_pos - 1
+
+    def __inc_cur(self):
+        """move cursor on the right"""
+        if self.__curs_pos<len(self.__text):
+            self.__curs_pos = self.__curs_pos + 1
+    
+    def move_cur(self, x):
+        pos = x+len(self.__header)
+        if pos>=self.rWidth:
+            pos=self.rWidth-1
+        self.move(0, pos)
+
+    def clear_text(self):
+        """Clear the text of the edit box"""
+        self.__text=""
+        self.__curs_pos=0
+        
+    def replace_cur(self):
+        """must be called earch time the cursor is moved"""
+        self.move_cur(self.__curs_pos)
+        self.noutrefresh()
+
+    def activate(self, state=True):
+        cursor_mode = 1 if state else 0
+        curses.curs_set(cursor_mode)
+        Window.activate(self,state)
+
+    def handleKey(self, k):
+        if ascii.isgraph(k) or ascii.isblank(k):
+            pacman = 0 if not self.__replace_mode else 1
+            self.__text = self.__text[:self.__curs_pos] + chr(k) + self.__text[self.__curs_pos + pacman:]
+            self.__curs_pos = self.__curs_pos + 1
+
+        elif k==ascii.NL:
+            try:
+                self.__enterCB(self.__text)
+            except NameError:
+                pass # TODO: thrown an error here
+            self.clear_text()
+
+        elif k==curses.KEY_BACKSPACE:
+            self.__text = self.__text[:self.__curs_pos-1]+self.__text[self.__curs_pos:]
+            self.__dec_cur()
+
+        elif k==curses.KEY_DC:
+            self.__text = self.__text[:self.__curs_pos]+self.__text[self.__curs_pos+1:]
+
+        elif k==curses.KEY_IC:
+            self.__replace_mode = not self.__replace_mode
+
+        elif k==curses.KEY_LEFT:
+            self.__dec_cur()
+
+        elif k==curses.KEY_RIGHT:
+            self.__inc_cur()
+
+        elif k==curses.KEY_HOME or k==C('a'):
+            self.__curs_pos=0
+        
+        elif k==curses.KEY_END or k==C('e'):
+            self.__curs_pos=len(self.__text)
+
+        elif k==C('k'):
+            self.__text = self.__text[:self.__curs_pos]
+
+        elif k==C('w'):
+            before = self.__text[:self.__curs_pos]
+            pos = before.rstrip().rfind(" ")+1
+            self.__text = before[:pos] + self.__text[self.__curs_pos:]
+            self.__curs_pos = pos
+
+        elif k>255:
+            self.__buffer=""
+
+        else:  ## FIXME: dangerous code, must be checked ! (specialy buffer overflow) ##
+            #We now manage unicode
+            self.__buffer = self.__buffer+chr(k)
+            decoded=unicode()
+            if len(self.__buffer)>4:
+                self.__buffer=""
+                return
+            try:
+                decoded = self.__buffer.decode(self.__code)
+            except UnicodeDecodeError, e:
+                if e.reason!="unexpected end of data":
+                    self.__buffer=""
+                return
+            if len(self.__buffer)==1:  ## FIXME: awful ! only for test !
+                self.__buffer=""
+                return
+            self.__text = self.__text + decoded
+            self.__curs_pos = self.__curs_pos + 1
+            self.__buffer=""
+
+        self.update()
+