add standard emojis and some screen messages

assets/src/ba_data/python/ba/_keyboard.py

@@ -37,6 +37,8 @@ class Keyboard:
     and the user can select which one they want to use.
     On-screen keyboard uses chars from active ba.Keyboard.
     Attributes:
+      name
+        Displays when user selecting this keyboard.
       chars
         Used for row/column lengths.
       pages
@@ -45,6 +47,7 @@ class Keyboard:
         The 'num' page.
     """
 
+    name: str
     chars: List[Tuple[str, ...]]
     pages: Dict[str, Tuple[str, ...]]
     nums: Tuple[str, ...]

assets/src/ba_data/python/bastd/ui/onscreenkeyboard.py

@@ -228,6 +228,12 @@ class OnScreenKeyboardWindow(ba.Window):
                         color=key_color_dark,
                         label=ba.Lstr(resource='spaceKeyText'),
                         on_activate_call=ba.Call(self._type_char, ' '))
+                    ba.textwidget(parent=self._root_widget,
+                                  h_align='center',
+                                  position=(210, v - 70),
+                                  size=(key_width * 6.1, key_height + 15),
+                                  text='Double press space to change keyboard',
+                                  scale=0.75)
                 btn2 = self._space_button
                 btn3 = self._emoji_button
                 ba.widget(edit=btn1, right_widget=btn2, left_widget=btn3)
@@ -317,6 +323,12 @@ class OnScreenKeyboardWindow(ba.Window):
         self._keyboard_index = (self._keyboard_index + 1) % len(
             ba.app.metascan.keyboards)
         self._load_keyboard()
+        if len(ba.app.metascan.keyboards) < 2:
+            ba.playsound(ba.getsound('error'))
+            ba.screenmessage('No other keyboards available', color=(1, 0, 0))
+        else:
+            ba.screenmessage(f'Switching keyboard to "{self._keyboard.name}"',
+                             color=(0, 1, 0))
 
     def _shift(self) -> None:
         ba.playsound(self._click_sound)

assets/src/ba_data/python/keyboards.py

@@ -30,15 +30,44 @@ from typing import TYPE_CHECKING
 import ba
 
 if TYPE_CHECKING:
-    from typing import Dict, Tuple
+    from typing import Iterable, List, Tuple, Dict
+
+
+def split(chars: Iterable[str], maxlen: int) -> List[List[str]]:
+    """Returns char groups with a fixed number of elements"""
+    result = []
+    shatter: List[str] = []
+    for i in chars:
+        if len(shatter) < maxlen:
+            shatter.append(i)
+        else:
+            result.append(shatter)
+            shatter = [i]
+    if shatter:
+        while len(shatter) < maxlen:
+            shatter.append('')
+        result.append(shatter)
+    return result
+
+
+def generate_emojis(maxlen: int) -> List[List[str]]:
+    """Generates a lot of UTF8 emojis prepared for ba.Keyboard pages"""
+    all_emojis = split([chr(i) for i in range(0x1F601, 0x1F650)], maxlen)
+    all_emojis += split([chr(i) for i in range(0x2702, 0x27B1)], maxlen)
+    all_emojis += split([chr(i) for i in range(0x1F680, 0x1F6C1)], maxlen)
+    return all_emojis
 
 
 # ba_meta export keyboard
 class EnglishKeyboard(ba.Keyboard):
     """Default English keyboard."""
+    name = 'English'
     chars = [('q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p'),
              ('a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l'),
              ('z', 'x', 'c', 'v', 'b', 'n', 'm')]
     nums = ('1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '/', ':',
             ';', '(', ')', '$', '&', '@', '"', '.', ',', '?', '!', '\'', '_')
-    pages: Dict[str, Tuple[str, ...]] = {}
+    pages: Dict[str, Tuple[str, ...]] = {
+        f'emoji{i}': tuple(page)
+        for i, page in enumerate(generate_emojis(len(nums)))
+    }