From e6c65d33e68fdfe3b28bff284c62ead374566504 Mon Sep 17 00:00:00 2001
From: Brian Silverman <brians@playfulinvention.com>
Date: Wed, 30 May 2007 13:28:45 +0000
Subject: Initial import

---
(limited to 'sprites.py')

diff --git a/sprites.py b/sprites.py
new file mode 100755
index 0000000..245bac3
--- /dev/null
+++ b/sprites.py
@@ -0,0 +1,120 @@
+import pygtk
+pygtk.require('2.0')
+import gtk
+import gobject
+import pango
+
+sprites = []
+gc = None
+window = None
+black = None
+
+class Sprite:
+    def __init__(self,x,y,image,altlabel=False):
+        self.x = x
+        self.y = y
+        self.setimage(image)
+        self.label = None
+        if altlabel: self.draw_label = self.draw_label2
+        else: self.draw_label = self.draw_label1
+
+    def setimage(self,image):
+        self.image = image
+        if isinstance(image,gtk.gdk.Pixbuf):
+            self.width = self.image.get_width()
+            self.height = self.image.get_height()
+        else: self.width,self.height=image.get_size()
+        
+        
+    def move(self,pos):
+        self.inval()
+        self.x,self.y = pos
+        self.inval()
+
+    def setshape(self,image):
+        self.inval()
+        self.setimage(image)
+        self.inval()
+
+    def setlayer(self, layer):
+        if self in sprites: sprites.remove(self)
+        self.layer = layer
+        for i in range(len(sprites)):
+            if layer < sprites[i].layer: sprites.insert(i, self); self.inval(); return
+        sprites.append(self)
+        self.inval()
+        
+    def hide(self):
+        if self not in sprites: return
+        self.inval()
+        sprites.remove(self)
+
+    def setlabel(self,label):
+        self.label = label
+        self.inval()
+ 
+    def inval(self): 
+        area.invalidate_rect(gtk.gdk.Rectangle(self.x,self.y,self.width,self.height), False)
+        
+    def draw(self):
+        if isinstance(self.image,gtk.gdk.Pixbuf): area.draw_pixbuf(gc, self.image, 0, 0, self.x, self.y)
+        else: area.draw_drawable(gc,self.image,0,0,self.x,self.y,-1,-1)
+        if self.label!=None: self.draw_label(self.label)
+        
+    def hit(self,pos):
+        x,y = pos
+        if x<self.x: return False
+        if x>self.x+self.width: return False
+        if y<self.y: return False
+        if y>self.y+self.height: return False
+        if isinstance(self.image,gtk.gdk.Pixmap): return True 
+        dx,dy = x-self.x, y-self.y
+        return ord(self.image.get_pixels()[(dy*self.width+dx)*4+3]) == 255
+
+    def draw_label1(self, label):
+        fd = pango.FontDescription('Sans')
+        fd.set_size(7*pango.SCALE)
+        pl = window.create_pango_layout(str(label))
+        pl.set_font_description(fd)
+        swidth = pl.get_size()[0]/pango.SCALE
+        sheight = pl.get_size()[1]/pango.SCALE
+        centerx = self.x+self.width/2
+        centery = self.y+self.height/2
+        gc.set_foreground(black)
+        area.draw_layout(gc,centerx-swidth/2,centery-sheight/2,pl)
+
+    def draw_label2(self, label):
+        fd = pango.FontDescription('Sans')
+        fd.set_size(9*pango.SCALE)
+        pl = window.create_pango_layout(str(label))
+        pl.set_font_description(fd)
+        sheight = pl.get_size()[1]/pango.SCALE
+        centery = self.y+self.height/2
+        gc.set_foreground(black)
+        area.draw_layout(gc,self.x+50,centery-sheight/2,pl)
+
+
+def findsprite(pos):
+    list = sprites[:]
+    list.reverse()
+    for s in list:
+        if s.hit(pos): return s
+    return None
+
+def redrawsprites(): 
+    for s in sprites: s.draw()
+
+def getpixel(image,x,y):
+    array = image.get_pixels()
+    offset = (y*image.get_width()+x)*4
+    r,g,b,a = ord(array[offset]),ord(array[offset+1]),ord(array[offset+2]),ord(array[offset+3])
+    return (a<<24)+(b<<16)+(g<<8)+r
+        
+def setspritecontext(w,a,g):
+    global window,area,gc,black
+    window=w
+    area =a
+    gc = g
+    black = gc.get_colormap().alloc_color('black')
+    
+def spritelist(): return sprites
\ No newline at end of file
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