Ajout du GUI

kivy/uix/behaviors/codenavigation.py

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+'''
+Code Navigation Behavior
+========================
+
+The :class:`~kivy.uix.bahviors.CodeNavigationBehavior` modifies navigation
+behavior in the :class:`~kivy.uix.textinput.TextInput`, making it work like an
+IDE instead of a word processor.
+
+Using this mixin gives the TextInput the ability to recognize whitespace,
+punctuation and case variations (e.g. CamelCase) when moving over text. It
+is currently used by the :class:`~kivy.uix.codeinput.CodeInput` widget.
+'''
+
+__all__ = ('CodeNavigationBehavior', )
+
+from kivy.event import EventDispatcher
+import string
+
+
+class CodeNavigationBehavior(EventDispatcher):
+    '''Code navigation behavior. Modifies the navigation behavior in TextInput
+    to work like an IDE instead of a word processor. Please see the
+    :mod:`code navigation behaviors module <kivy.uix.behaviors.codenavigation>`
+    documentation for more information.
+
+    .. versionadded:: 1.9.1
+    '''
+
+    def _move_cursor_word_left(self, index=None):
+        pos = index or self.cursor_index()
+        pos -= 1
+
+        if pos == 0:
+            return 0, 0
+
+        col, row = self.get_cursor_from_index(pos)
+        lines = self._lines
+
+        ucase = string.ascii_uppercase
+        lcase = string.ascii_lowercase
+        ws = string.whitespace
+        punct = string.punctuation
+
+        mode = 'normal'
+
+        rline = lines[row]
+        c = rline[col] if len(rline) > col else '\n'
+        if c in ws:
+            mode = 'ws'
+        elif c == '_':
+            mode = 'us'
+        elif c in punct:
+            mode = 'punct'
+        elif c not in ucase:
+            mode = 'camel'
+
+        while True:
+            if col == -1:
+                if row == 0:
+                    return 0, 0
+                row -= 1
+                rline = lines[row]
+                col = len(rline)
+            lc = c
+            c = rline[col] if len(rline) > col else '\n'
+            if c == '\n':
+                if lc not in ws:
+                    col += 1
+                break
+            if mode in ('normal', 'camel') and c in ws:
+                col += 1
+                break
+            if mode in ('normal', 'camel') and c in punct:
+                col += 1
+                break
+            if mode == 'camel' and c in ucase:
+                break
+            if mode == 'punct' and (c == '_' or c not in punct):
+                col += 1
+                break
+            if mode == 'us' and c != '_' and (c in punct or c in ws):
+                col += 1
+                break
+
+            if mode == 'us' and c != '_':
+                mode = ('normal' if c in ucase
+                        else 'ws' if c in ws
+                else 'camel')
+            elif mode == 'ws' and c not in ws:
+                mode = ('normal' if c in ucase
+                        else 'us' if c == '_'
+                else 'punct' if c in punct
+                else 'camel')
+
+            col -= 1
+
+        if col > len(rline):
+            if row == len(lines) - 1:
+                return row, len(lines[row])
+            row += 1
+            col = 0
+
+        return col, row
+
+    def _move_cursor_word_right(self, index=None):
+        pos = index or self.cursor_index()
+        col, row = self.get_cursor_from_index(pos)
+        lines = self._lines
+        mrow = len(lines) - 1
+
+        if row == mrow and col == len(lines[row]):
+            return col, row
+
+        ucase = string.ascii_uppercase
+        lcase = string.ascii_lowercase
+        ws = string.whitespace
+        punct = string.punctuation
+
+        mode = 'normal'
+
+        rline = lines[row]
+        c = rline[col] if len(rline) > col else '\n'
+        if c in ws:
+            mode = 'ws'
+        elif c == '_':
+            mode = 'us'
+        elif c in punct:
+            mode = 'punct'
+        elif c in lcase:
+            mode = 'camel'
+
+        while True:
+            if mode in ('normal', 'camel', 'punct') and c in ws:
+                mode = 'ws'
+            elif mode in ('normal', 'camel') and c == '_':
+                mode = 'us'
+            elif mode == 'normal' and c not in ucase:
+                mode = 'camel'
+
+            if mode == 'us':
+                if c in ws:
+                    mode = 'ws'
+                elif c != '_':
+                    break
+            if mode == 'ws' and c not in ws:
+                break
+            if mode == 'camel' and c in ucase:
+                break
+            if mode == 'punct' and (c == '_' or c not in punct):
+                break
+            if mode != 'punct' and c != '_' and c in punct:
+                break
+
+            col += 1
+
+            if col > len(rline):
+                if row == mrow:
+                    return len(rline), mrow
+                row += 1
+                rline = lines[row]
+                col = 0
+
+            c = rline[col] if len(rline) > col else '\n'
+            if c == '\n':
+                break
+
+        return col, row