X-Git-Url: https://git.ctpug.org.za/?a=blobdiff_plain;f=tabakrolletjie%2Fwidgets.py;h=4341c703d717be28ae59a4d1a6a16b056ac01061;hb=HEAD;hp=8ca16e31510c061a261a5cc39200dd01798f30bf;hpb=e39d0d676be451f3776413051947f6530144c0b7;p=tabakrolletjie.git

diff --git a/tabakrolletjie/widgets.py b/tabakrolletjie/widgets.py
index 8ca16e3..4341c70 100644
--- a/tabakrolletjie/widgets.py
+++ b/tabakrolletjie/widgets.py
@@ -6,7 +6,7 @@ import pygame.locals as pgl
 
 from .loader import loader
 from .constants import FONTS
-from .transforms import NullTransform
+from .transforms import NullTransform, Multiply
 
 
 class Button(object):
@@ -16,6 +16,13 @@ class Button(object):
         self._padding = padding
         self.position = pos
         self.name = name
+        self.enabled = True
+
+    def enable(self):
+        self.enabled = True
+
+    def disable(self):
+        self.enabled = False
 
     @property
     def position(self):
@@ -40,6 +47,8 @@ class Button(object):
         pass
 
     def pressed(self, ev):
+        if not self.enabled:
+            return False
         if self._pos is None:
             # Unplaced buttons can't be pressed
             return False
@@ -50,28 +59,58 @@ class Button(object):
         return False
 
 
+class SpacerButton(Button):
+    """ Add a nothing object which can be used to space other things,
+        but is never pressed """
+
+    def pressed(self, ev):
+        return False
+
+
 class TextButton(Button):
 
-    def __init__(self, text, colour, name=None, pos=None, padding=10):
-        font = loader.load_font(FONTS['sans'], size=24)
+    def __init__(
+            self, text, colour, name=None, pos=None, padding=10, size=24,
+            font='sans', centre=False):
+        font = loader.load_font(FONTS[font], size=size)
         self._text = font.render(text, True, colour)
+        if centre:
+            w, h = self._text.get_size()
+            pos = pos[0] - (w / 2), pos[1] - (h / 2)
+        self._disabled_text = self._text.copy()
+        Multiply(colour=(80, 80, 80)).apply(self._disabled_text)
         super(TextButton, self).__init__(self._text.get_size(), name,
                                          pos, padding)
 
     def render(self, surface):
-        surface.blit(self._text, self._pos, None)
+        if self.enabled:
+            surface.blit(self._text, self._pos, None)
+        else:
+            surface.blit(self._disabled_text, self._pos, None)
 
 
 class ImageButton(Button):
 
     def __init__(self, *imgparts, **kwargs):
         transform = kwargs.pop("transform", NullTransform())
-        self._img = loader.load_image(*imgparts, transform=transform)
+        self._img = kwargs.pop("image", None)
+        if self._img is None:
+            self._img = loader.load_image(*imgparts, transform=transform)
+        self._disabled_img = self._img.copy()
+        disabled_colour = kwargs.pop("disabled_colour", (80, 80, 80))
+        Multiply(colour=disabled_colour).apply(self._disabled_img)
         name = kwargs.get('name')
         pos = kwargs.get('pos')
         padding = kwargs.get('padding', 0)
         super(ImageButton, self).__init__(self._img.get_size(), name,
                                           pos, padding)
 
+    def update_image(self, *imgparts, **kwargs):
+        transform = kwargs.pop("transform", NullTransform())
+        self._img = loader.load_image(*imgparts, transform=transform)
+
     def render(self, surface):
-        surface.blit(self._img, self._pos, None)
+        if self.enabled:
+            surface.blit(self._img, self._pos, None)
+        else:
+            surface.blit(self._disabled_img, self._pos, None)