1 files changed, 124 insertions, 0 deletions
diff --git a/pgu/gui/basic.py b/pgu/gui/basic.py
new file mode 100644
index 0000000..093c6ee
--- /dev/null
+++ b/pgu/gui/basic.py
@@ -0,0 +1,124 @@
+"""These widgets are all grouped together because they are non-interactive widgets.
+"""
+
+import pygame
+
+from const import *
+import widget
+
+# Turns a descriptive string or a tuple into a pygame color
+def parse_color(desc):
+    if (isinstance(desc, pygame.Color)):
+        # Already a color
+        return desc
+    elif (desc and desc[0] == "#"):
+        # Because of a bug in pygame 1.8.1 we need to explicitly define the 
+        # alpha value otherwise it will default to transparent.
+        if (len(desc) == 7):
+            desc += "FF"
+    return pygame.Color(desc)
+
+
+class Spacer(widget.Widget):
+    """A invisible space.
+    
+    <pre>Spacer(width,height)</pre>
+    
+    """
+    def __init__(self,width,height,**params):
+        params.setdefault('focusable',False)
+        widget.Widget.__init__(self,width=width,height=height,**params)
+        
+
+class Color(widget.Widget):
+    """A block of color.
+    
+    <p>The color can be changed at run-time.</p>
+    
+    <pre>Color(value=None)</pre>
+    
+    <strong>Example</strong>
+    <code>
+    c = Color()
+    c.value = (255,0,0)
+    c.value = (0,255,0)
+    </code>
+    """
+    
+    
+    def __init__(self,value=None,**params):
+        params.setdefault('focusable',False)
+        if value != None: params['value']=value
+        widget.Widget.__init__(self,**params)
+    
+    def paint(self,s):
+        if hasattr(self,'value'): s.fill(self.value)
+    
+    def __setattr__(self,k,v):
+        if k == 'value' and type(v) == str:
+            v = parse_color(v)
+        _v = self.__dict__.get(k,NOATTR)
+        self.__dict__[k]=v
+        if k == 'value' and _v != NOATTR and _v != v: 
+            self.send(CHANGE)
+            self.repaint()
+
+class Label(widget.Widget):
+    """A text label.
+    
+    <pre>Label(value)</pre>
+    
+    <dl>
+    <dt>value<dd>text to be displayed
+    </dl>
+    
+    <strong>Example</strong>
+    <code>
+    w = Label(value="I own a rubber chicken!")
+    
+    w = Label("3 rubber chickens")
+    </code>
+    """
+    def __init__(self,value,**params):
+        params.setdefault('focusable',False)
+        params.setdefault('cls','label')
+        widget.Widget.__init__(self,**params)
+        self.value = value
+        self.font = self.style.font
+        self.style.width, self.style.height = self.font.size(self.value)
+    
+    def paint(self,s):
+        s.blit(self.font.render(self.value, 1, self.style.color),(0,0))
+
+class Image(widget.Widget):
+    """An image.
+    
+    <pre>Image(value)</pre>
+    
+    <dl>
+    <dt>value<dd>a file name or a pygame.Surface
+    </dl>
+    
+    """
+    def __init__(self,value,**params):
+        params.setdefault('focusable',False)
+        widget.Widget.__init__(self,**params)
+        if type(value) == str: value = pygame.image.load(value)
+        
+        ow,oh = iw,ih = value.get_width(),value.get_height()
+        sw,sh = self.style.width,self.style.height
+        
+        if sw and not sh:
+            iw,ih = sw,ih*sw/iw
+        elif sh and not sw:
+            iw,ih = iw*sh/ih,sh
+        elif sw and sh:
+            iw,ih = sw,sh
+        
+        if (ow,oh) != (iw,ih):
+            value = pygame.transform.scale(value,(iw,ih))
+        self.style.width,self.style.height = iw,ih
+        self.value = value
+    
+    def paint(self,s):
+        s.blit(self.value,(0,0))