diff options
Diffstat (limited to 'sprites.py')
| -rw-r--r-- | sprites.py | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/sprites.py b/sprites.py new file mode 100644 index 0000000..e737057 --- /dev/null +++ b/sprites.py @@ -0,0 +1,244 @@ +# -*- coding: utf-8 -*- + +#Copyright (c) 2007-8, Playful Invention Company. +#Copyright (c) 2008-10 Walter Bender + +#Permission is hereby granted, free of charge, to any person obtaining a copy +#of this software and associated documentation files (the "Software"), to deal +#in the Software without restriction, including without limitation the rights +#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +#copies of the Software, and to permit persons to whom the Software is +#furnished to do so, subject to the following conditions: + +#The above copyright notice and this permission notice shall be included in +#all copies or substantial portions of the Software. + +#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +#THE SOFTWARE. + +import pygtk +pygtk.require('2.0') +import gtk +import gobject +import pango + +# +# A class for the list of sprites and everything they share in common +# +class Sprites: + def __init__(self, canvas): + self.canvas = canvas + self.area = self.canvas.window + self.gc = self.area.new_gc() + self.cm = self.gc.get_colormap() + self.list = [] + + def get_sprite(self, i): + if i < 0 or i > len(self.list)-1: + return(None) + else: + return(self.list[i]) + + def length_of_list(self): + return(len(self.list)) + + def append_to_list(self,spr): + self.list.append(spr) + + def insert_in_list(self,spr,i): + if i < 0: + self.list.insert(0, spr) + elif i > len(self.list)-1: + self.list.append(spr) + else: + self.list.insert(i, spr) + + def remove_from_list(self,spr): + if spr in self.list: + self.list.remove(spr) + + def find_sprite(self, pos): + list = self.list + list.reverse() + for spr in list: + if spr.hit(pos): return spr + return None + + def redraw_sprites(self): + for spr in self.list: + spr.draw() + +# +# A class for the individual sprites +# +class Sprite: + def __init__(self, sprites, x, y, image): + self.sprites = sprites + self.x = x + self.y = y + self.layer = 100 + self.labels = [] + self.scale = [24] + self.rescale = [True] + self.horiz_align = ["center"] + self.vert_align = ["middle"] + self.fd = None + self.bold = False + self.italic = False + self.color = None + self.set_image(image) + self.sprites.append_to_list(self) + + def set_image(self, image): + self.image = image + if isinstance(self.image,gtk.gdk.Pixbuf): + self.width = self.image.get_width() + self.height = self.image.get_height() + else: + self.width, self.height = self.image.get_size() + + def move(self, pos): + self.inval() + self.x,self.y = pos + self.inval() + + def set_shape(self, image): + self.inval() + self.set_image(image) + self.inval() + + def set_layer(self, layer): + self.sprites.remove_from_list(self) + self.layer = layer + for i in range(self.sprites.length_of_list()): + if layer < self.sprites.get_sprite(i).layer: + self.sprites.insert_in_list(self, i) + self.inval() + return + self.sprites.append_to_list(self) + self.inval() + + def set_label(self, new_label, i=0): + self._extend_labels_array(i) + if type(new_label) is str or type(new_label) is unicode: + # pango doesn't like nulls + self.labels[i] = new_label.replace("\0"," ") + else: + self.labels[i] = str(new_label) + if self.fd is None: + self.set_font('Sans') + if self.color is None: + self.color = self.sprites.cm.alloc_color('black') + self.inval() + + def _extend_labels_array(self, i): + while len(self.labels) < i+1: + self.labels.append(" ") + self.scale.append(self.scale[0]) + self.rescale.append(self.rescale[0]) + self.horiz_align.append(self.horiz_align[0]) + self.vert_align.append(self.vert_align[0]) + + def set_font(self, font): + self.fd = pango.FontDescription(font) + + def set_label_color(self, rgb): + self.color = self.sprites.cm.alloc_color(rgb) + + def set_label_attributes(self, scale, rescale=True, horiz_align="center", + vert_align="middle", i=0): + self._extend_labels_array(i) + self.scale[i] = scale + self.rescale[i] = rescale + self.horiz_align[i] = horiz_align + self.vert_align[i] = vert_align + + def hide(self): + self.inval() + self.sprites.remove_from_list(self) + + def inval(self): + self.sprites.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): + self.sprites.area.draw_pixbuf( + self.sprites.gc, self.image, 0, 0, self.x, self.y) + else: + self.sprites.area.draw_drawable( + self.sprites.gc, self.image, 0, 0, self.x, self.y, -1, -1) + if len(self.labels) > 0: + self.draw_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 + return True + + def draw_label(self): + for i in range(len(self.labels)): + pl = self.sprites.canvas.create_pango_layout(self.labels[i]) + self.fd.set_size(int(self.scale[i]*pango.SCALE)) + pl.set_font_description(self.fd) + w = pl.get_size()[0]/pango.SCALE + if w > self.width: + if self.rescale[i] is True: + self.fd.set_size(int(self.scale[i]*pango.SCALE*\ + self.width/w)) + pl.set_font_description(self.fd) + w = pl.get_size()[0]/pango.SCALE + else: + j = len(self.labels[i])-1 + while(w > self.width and j > 0): + pl = self.sprites.canvas.create_pango_layout( + "…"+self.labels[i][len(self.labels[i])-j:]) + self.fd.set_size(int(self.scale[i]*pango.SCALE)) + pl.set_font_description(self.fd) + w = pl.get_size()[0]/pango.SCALE + j -= 1 + if self.horiz_align[i] == "center": + x = int(self.x+(self.width-w)/2) + elif self.horiz_align[i] == 'left': + x = self.x + else: # right + x = int(self.x+self.width-w) + h = pl.get_size()[1]/pango.SCALE + if self.vert_align[i] == "middle": + y = int(self.y+(self.height-h)/2) + elif self.vert_align[i] == "top": + y = self.y + else: # bottom + y = int(self.y+self.height-h) + self.sprites.gc.set_foreground(self.color) + self.sprites.area.draw_layout(self.sprites.gc, x, y, pl) + + def label_width(self): + max = 0 + for i in range(len(self.labels)): + pl = self.sprites.canvas.create_pango_layout(self.labels[i]) + self.fd.set_size(int(self.scale[i]*pango.SCALE)) + pl.set_font_description(self.fd) + w = pl.get_size()[0]/pango.SCALE + if w > max: + max = w + return max + + def get_pixel(self, 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 |