From 5ac99405ed059d75377ec38271f800d314d22cb6 Mon Sep 17 00:00:00 2001 From: Walter Bender Date: Fri, 18 Nov 2011 23:57:37 +0000 Subject: Update to Cairo; clean up license text --- diff --git a/COPYING b/COPYING index 92d2818..10926e8 100644 --- a/COPYING +++ b/COPYING @@ -1,12 +1,675 @@ -Copyright (c) 2009-10, Walter Bender + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 3 of the License, or -(at your option) any later version. + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. -You should have received a copy of the GNU Lesser General Public -License along with this library; if not, write to the -Free Software Foundation, Inc., 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/ErikosActivity.py b/ErikosActivity.py index fd3df40..2cf79ae 100644 --- a/ErikosActivity.py +++ b/ErikosActivity.py @@ -1,23 +1,14 @@ # -*- coding: utf-8 -*- -#Copyright (c) 2009, 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. +#Copyright (c) 2009, 2011 Walter Bender + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# You should have received a copy of the GNU General Public License +# along with this library; if not, write to the Free Software +# Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA import pygtk pygtk.require('2.0') diff --git a/NEWS b/NEWS index 5e39b93..7c3009f 100644 --- a/NEWS +++ b/NEWS @@ -1,3 +1,12 @@ +4 + +* Upgrade to Cairo + +3 + +* new sprite library +* new license + 2 * some animation to provide better feedback diff --git a/activity/activity.info b/activity/activity.info index be050a6..0a22541 100644 --- a/activity/activity.info +++ b/activity/activity.info @@ -1,6 +1,6 @@ [Activity] name = Erikos -activity_version = 2 +activity_version = 4 license = GPLv3 bundle_id = org.sugarlabs.ErikosActivity exec = sugar-activity ErikosActivity.ErikosActivity diff --git a/constants.py b/constants.py index 1e7987a..6a5a92f 100644 --- a/constants.py +++ b/constants.py @@ -1,23 +1,14 @@ # -*- coding: utf-8 -*- #Copyright (c) 2009, 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. +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# You should have received a copy of the GNU General Public License +# along with this library; if not, write to the Free Software +# Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA W = 156 H = 156 diff --git a/sprite_factory.py b/sprite_factory.py index c27cb8b..05bd851 100644 --- a/sprite_factory.py +++ b/sprite_factory.py @@ -1,22 +1,13 @@ -#Copyright (c) 2009, Walter Bender +#Copyright (c) 2009, 2011 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. +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# You should have received a copy of the GNU General Public License +# along with this library; if not, write to the Free Software +# Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA import pygtk pygtk.require('2.0') diff --git a/sprites.py b/sprites.py index 0e30c50..baae94f 100644 --- a/sprites.py +++ b/sprites.py @@ -1,7 +1,7 @@ # -*- coding: utf-8 -*- #Copyright (c) 2007-8, Playful Invention Company. -#Copyright (c) 2008-10 Walter Bender +#Copyright (c) 2008-11 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 @@ -21,24 +21,23 @@ #OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN #THE SOFTWARE. -""" +''' sprites.py is a simple sprites library for managing graphics objects, -'sprites', on a canvas. It manages multiple sprites with methods such -as move, hide, set_layer, etc. +'sprites', on a gtk.DrawingArea. It manages multiple sprites with +methods such as move, hide, set_layer, etc. There are two classes: -class Sprites maintains a collection of sprites. +class Sprites maintains a collection of sprites class Sprite manages individual sprites within the collection. Example usage: # Import the classes into your program. - from sprites import Sprites, Sprite + from sprites import Sprites Sprite - # Create a new sprite collection for a gtk Drawing Area. - my_drawing_area = gtk.DrawingArea() - self.sprite_list = Sprites(my_drawing_area) + # Create a new sprite collection associated with your widget + self.sprite_list = Sprites(widget) # Create a "pixbuf" (in this example, from SVG). my_pixbuf = svg_str_to_pixbuf("...some svg code...") @@ -63,6 +62,10 @@ Example usage: # Now put my_sprite on top of your_sprite. my_sprite.set_layer(300) + cr = self.window.cairo_create() + # In your activity's do_expose_event, put in a call to redraw_sprites + self.sprites.redraw_sprites(event.area, cairo_context) + # method for converting SVG to a gtk pixbuf def svg_str_to_pixbuf(svg_string): pl = gtk.gdk.PixbufLoader('svg') @@ -70,73 +73,94 @@ def svg_str_to_pixbuf(svg_string): pl.close() pixbuf = pl.get_pixbuf() return pixbuf -""" + +''' 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 -# +import pangocairo +import cairo class Sprites: - def __init__(self, canvas, area=None, gc=None): - self.canvas = canvas - if area == None: - self.area = self.canvas.window - self.gc = self.area.new_gc() - else: - self.area = area - self.gc = gc - self.cm = self.gc.get_colormap() + ''' A class for the list of sprites and everything they share in common ''' + + def __init__(self, widget): + ''' Initialize an empty array of sprites ''' + self.widget = widget self.list = [] + self.cr = None + + def set_cairo_context(self, cr): + ''' Cairo context may be set or reset after __init__ ''' + self.cr = cr def get_sprite(self, i): - if i < 0 or i > len(self.list)-1: + ''' Return a sprint from the array ''' + if i < 0 or i > len(self.list) - 1: return(None) else: return(self.list[i]) def length_of_list(self): + ''' How many sprites are there? ''' return(len(self.list)) def append_to_list(self, spr): + ''' Append a new sprite to the end of the list. ''' self.list.append(spr) def insert_in_list(self, spr, i): + ''' Insert a sprite at position i. ''' if i < 0: self.list.insert(0, spr) - elif i > len(self.list)-1: + elif i > len(self.list) - 1: self.list.append(spr) else: self.list.insert(i, spr) def remove_from_list(self, spr): + ''' Remove a sprite from the list. ''' if spr in self.list: self.list.remove(spr) def find_sprite(self, pos): + ''' Search based on (x, y) position. Return the 'top/first' one. ''' list = self.list[:] list.reverse() for spr in list: - if spr.hit(pos): return spr + if spr.hit(pos): + return spr return None - def redraw_sprites(self): + def redraw_sprites(self, area=None, cr=None): + ''' Redraw the sprites that intersect area. ''' + # I think I need to do this to save Cairo some work + if cr is None: + cr = self.cr + else: + self.cr = cr + if cr is None: + print 'sprites.redraw_sprites: no Cairo context' + return for spr in self.list: - spr.draw() + if area == None: + spr.draw(cr=cr) + else: + intersection = spr.rect.intersect(area) + if intersection.width > 0 or intersection.height > 0: + spr.draw(cr=cr) + -# -# A class for the individual sprites -# class Sprite: + ''' A class for the individual sprites ''' + def __init__(self, sprites, x, y, image): + ''' Initialize an individual sprite ''' self._sprites = sprites - self._x = int(x) - self._y = int(y) + self.save_xy = (x, y) # remember initial (x, y) position + self.rect = gtk.gdk.Rectangle(int(x), int(y), 0, 0) self._scale = [12] self._rescale = [True] self._horiz_align = ["center"] @@ -145,67 +169,82 @@ class Sprite: self._bold = False self._italic = False self._color = None - self._width = 0 - self._height = 0 - self._margins = [0,0,0,0] + self._margins = [0, 0, 0, 0] self.layer = 100 self.labels = [] - self.images = [] - self._dx = [] # image offsets + self.cached_surfaces = [] + self._dx = [] # image offsets self._dy = [] + self.type = None self.set_image(image) self._sprites.append_to_list(self) def set_image(self, image, i=0, dx=0, dy=0): - while len(self.images) < i+1: - self.images.append(None) - self._dx.append(0) - self._dy.append(0) - self.images[i] = image + ''' Add an image to the sprite. ''' + while len(self.cached_surfaces) < i + 1: + self.cached_surfaces.append(None) + self._dx.append(0) + self._dy.append(0) self._dx[i] = dx self._dy[i] = dy - if isinstance(self.images[i], gtk.gdk.Pixbuf): - _w = self.images[i].get_width() - _h = self.images[i].get_height() + if isinstance(image, gtk.gdk.Pixbuf): + w = image.get_width() + h = image.get_height() else: - _w, _h = self.images[i].get_size() - if i == 0: # Always reset width and height when base image changes. - self._width = _w + dx - self._height = _h + dy + w, h = image.get_size() + if i == 0: # Always reset width and height when base image changes. + self.rect.width = w + dx + self.rect.height = h + dy else: - if _w + dx > self._width: - self._width = _w + dx - if _h + dy > self._height: - self._height = _h + dy + if w + dx > self.rect.width: + self.rect.width = w + dx + if h + dy > self.rect.height: + self.rect.height = h + dy + surface = cairo.ImageSurface( + cairo.FORMAT_ARGB32, self.rect.width, self.rect.height) + context = cairo.Context(surface) + context = gtk.gdk.CairoContext(context) + context.set_source_pixbuf(image, 0, 0) + context.rectangle(0, 0, self.rect.width, self.rect.height) + context.fill() + self.cached_surfaces[i] = surface def move(self, pos): + ''' Move to new (x, y) position ''' self.inval() - self._x,self._y = int(pos[0]),int(pos[1]) + self.rect.x, self.rect.y = int(pos[0]), int(pos[1]) self.inval() def move_relative(self, pos): + ''' Move to new (x+dx, y+dy) position ''' self.inval() - self._x += int(pos[0]) - self._y += int(pos[1]) + self.rect.x += int(pos[0]) + self.rect.y += int(pos[1]) self.inval() def get_xy(self): - return (self._x, self._y) + ''' Return current (x, y) position ''' + return (self.rect.x, self.rect.y) def get_dimensions(self): - return (self._width, self._height) + ''' Return current size ''' + return (self.rect.width, self.rect.height) def get_layer(self): + ''' Return current layer ''' return self.layer def set_shape(self, image, i=0): + ''' Set the current image associated with the sprite ''' self.inval() self.set_image(image, i) self.inval() - def set_layer(self, layer): + def set_layer(self, layer=None): + ''' Set the layer for a sprite ''' self._sprites.remove_from_list(self) - self.layer = layer + if layer is not None: + 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) @@ -215,37 +254,54 @@ class Sprite: self.inval() def set_label(self, new_label, i=0): + ''' Set the label drawn on the sprite ''' 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"," ") + self.labels[i] = new_label.replace("\0", " ") else: self.labels[i] = str(new_label) self.inval() def set_margins(self, l=0, t=0, r=0, b=0): - self._margins = [l,t,r,b] + ''' Set the margins for drawing the label ''' + self._margins = [l, t, r, b] def _extend_labels_array(self, i): + ''' Append to the labels attribute list ''' if self._fd is None: - self.set_font('Sans') + self.set_font('Sans') if self._color is None: - self._color = self._sprites.cm.alloc_color('black') - 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]) + self._color = (0., 0., 0.) + 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): + ''' Set the font for a label ''' self._fd = pango.FontDescription(font) def set_label_color(self, rgb): - self._color = self._sprites.cm.alloc_color(rgb) + ''' Set the font color for a label ''' + COLORTABLE = {'black': '#000000', 'white': '#FFFFFF', + 'red': '#FF0000', 'yellow': '#FFFF00', + 'green': '#00FF00', 'cyan': '#00FFFF', + 'blue': '#0000FF', 'purple': '#FF00FF', + 'gray': '#808080'} + if rgb.lower() in COLORTABLE: + rgb = COLORTABLE[rgb.lower()] + # Convert from '#RRGGBB' to floats + self._color = (int('0x' + rgb[1:3], 16) / 256., + int('0x' + rgb[3:5], 16) / 256., + int('0x' + rgb[5:7], 16) / 256.) + return def set_label_attributes(self, scale, rescale=True, horiz_align="center", vert_align="middle", i=0): + ''' Set the various label attributes ''' self._extend_labels_array(i) self._scale[i] = scale self._rescale[i] = rescale @@ -253,114 +309,146 @@ class Sprite: self._vert_align[i] = vert_align def hide(self): + ''' Hide a sprite ''' self.inval() self._sprites.remove_from_list(self) + def restore(self): + ''' Restore a hidden sprite ''' + self.set_layer() + def inval(self): - self._sprites.area.invalidate_rect( - gtk.gdk.Rectangle(self._x,self._y,self._width,self._height), False) - - def draw(self): - for i,img in enumerate(self.images): - if isinstance(img, gtk.gdk.Pixbuf): - self._sprites.area.draw_pixbuf( - self._sprites.gc, img, 0, 0, self._x+self._dx[i], - self._y+self._dy[i]) - elif img is not None: - self._sprites.area.draw_drawable( - self._sprites.gc, img, 0, 0, self._x+self._dx[i], - self._y+self._dy[i], -1, -1) + ''' Invalidate a region for gtk ''' + self._sprites.widget.queue_draw_area(self.rect.x, + self.rect.y, + self.rect.width, + self.rect.height) + + def draw(self, cr=None): + ''' Draw the sprite (and label) ''' + if cr is None: + print 'sprite.draw: no Cairo context.' + return + for i, surface in enumerate(self.cached_surfaces): + cr.set_source_surface(surface, + self.rect.x + self._dx[i], + self.rect.y + self._dy[i]) + cr.rectangle(self.rect.x + self._dx[i], + self.rect.y + self._dy[i], + self.rect.width, + self.rect.height) + cr.fill() if len(self.labels) > 0: - self.draw_label() + self.draw_label(cr) def hit(self, pos): + ''' Is (x, y) on top of the sprite? ''' x, y = pos - if x < self._x: + if x < self.rect.x: return False - if x > self._x+self._width: + if x > self.rect.x + self.rect.width: return False - if y < self._y: + if y < self.rect.y: return False - if y > self._y+self._height: + if y > self.rect.y + self.rect.height: return False return True - def draw_label(self): - my_width = self._width-self._margins[0]-self._margins[2] + def draw_label(self, cr): + ''' Draw the label based on its attributes ''' + # Create a pangocairo context + cr = pangocairo.CairoContext(cr) + my_width = self.rect.width - self._margins[0] - self._margins[2] if my_width < 0: my_width = 0 - my_height = self._height-self._margins[1]-self._margins[3] + my_height = self.rect.height - self._margins[1] - self._margins[3] for i in range(len(self.labels)): - pl = self._sprites.canvas.create_pango_layout(str(self.labels[i])) - self._fd.set_size(int(self._scale[i]*pango.SCALE)) + pl = cr.create_layout() + pl.set_text(str(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 + w = pl.get_size()[0] / pango.SCALE if w > my_width: - if self._rescale[i] is True: + if self._rescale[i]: self._fd.set_size( - int(self._scale[i]*pango.SCALE*my_width/w)) + int(self._scale[i] * pango.SCALE * my_width / w)) pl.set_font_description(self._fd) - w = pl.get_size()[0]/pango.SCALE + w = pl.get_size()[0] / pango.SCALE else: - j = len(self.labels[i])-1 + j = len(self.labels[i]) - 1 while(w > my_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_text( + "…" + 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 + w = pl.get_size()[0] / pango.SCALE j -= 1 if self._horiz_align[i] == "center": - x = int(self._x+self._margins[0]+(my_width-w)/2) + x = int(self.rect.x + self._margins[0] + (my_width - w) / 2) elif self._horiz_align[i] == 'left': - x = int(self._x+self._margins[0]) + x = int(self.rect.x + self._margins[0]) else: # right - x = int(self._x+self._width-w-self._margins[2]) - h = pl.get_size()[1]/pango.SCALE + x = int(self.rect.x + self.rect.width - w - self._margins[2]) + h = pl.get_size()[1] / pango.SCALE if self._vert_align[i] == "middle": - y = int(self._y+self._margins[1]+(my_height-h)/2) + y = int(self.rect.y + self._margins[1] + (my_height - h) / 2) elif self._vert_align[i] == "top": - y = int(self._y+self._margins[1]) + y = int(self.rect.y + self._margins[1]) else: # bottom - y = int(self._y+self._height-h-self._margins[3]) - self._sprites.gc.set_foreground(self._color) - self._sprites.area.draw_layout(self._sprites.gc, x, y, pl) + y = int(self.rect.y + self.rect.height - h - self._margins[3]) + cr.save() + cr.translate(x, y) + cr.set_source_rgb(self._color[0], self._color[1], self._color[2]) + cr.update_layout(pl) + cr.show_layout(pl) + cr.restore() 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 + ''' Calculate the width of a label ''' + cr = pangocairo.CairoContext(self._sprites.cr) + if cr is not None: + max = 0 + for i in range(len(self.labels)): + pl = cr.create_layout() + pl.set_text(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 + else: + return self.rect.width def label_safe_width(self): - return self._width-self._margins[0]-self._margins[2] - + ''' Return maximum width for a label ''' + return self.rect.width - self._margins[0] - self._margins[2] + def label_safe_height(self): - return self._height-self._margins[1]-self._margins[3] - + ''' Return maximum height for a label ''' + return self.rect.height - self._margins[1] - self._margins[3] + def label_left_top(self): - return (self._margins[0], self._margins[1]) + ''' Return the upper-left corner of the label safe zone ''' + return(self._margins[0], self._margins[1]) def get_pixel(self, pos, i=0): - x, y = pos - x = x-self._x - y = y-self._y - if y > self.images[i].get_height()-1: - return (-1,-1,-1,-1) - try: - array = self.images[i].get_pixels() - if array is not None: - offset = (y*self.images[i].get_width()+x)*4 - r,g,b,a = ord(array[offset]), ord(array[offset+1]),\ - ord(array[offset+2]), ord(array[offset+3]) - return (r,g,b,a) - else: - return (-1,-1,-1,-1) - except IndexError: - print "Index Error: %d %d" % (len(array), offset) - return (-1,-1,-1,-1) + ''' Return the pixel at (x, y) ''' + x = int(pos[0] - self.rect.x) + y = int(pos[1] - self.rect.y) + if x < 0 or x > (self.rect.width - 1) or \ + y < 0 or y > (self.rect.height - 1): + return(-1, -1, -1, -1) + + # create a new 1x1 cairo surface + cs = cairo.ImageSurface(cairo.FORMAT_RGB24, 1, 1); + cr = cairo.Context(cs) + cr.set_source_surface(self.cached_surfaces[i], -x, -y) + cr.rectangle(0,0,1,1) + cr.set_operator(cairo.OPERATOR_SOURCE) + cr.fill() + cs.flush() # ensure all writing is done + # Read the pixel + pixels = cs.get_data() + return (ord(pixels[2]), ord(pixels[1]), ord(pixels[0]), 0) + diff --git a/window.py b/window.py index 06abb3c..915c66f 100644 --- a/window.py +++ b/window.py @@ -1,23 +1,15 @@ # -*- coding: utf-8 -*- -#Copyright (c) 2009, 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. +#Copyright (c) 2009, 2011 Walter Bender + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# You should have received a copy of the GNU General Public License +# along with this library; if not, write to the Free Software +# Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA + from constants import * from time import * @@ -72,10 +64,6 @@ def new_window(canvas, path, parent=None): sw.width = gtk.gdk.screen_width() sw.height = gtk.gdk.screen_height()-GRID_CELL_SIZE sw.sprites = Sprites(sw.canvas) - # sw.area = sw.canvas.window - # sw.gc = sw.area.new_gc() - # sw.cm = sw.gc.get_colormap() - # sw.msgcolor = sw.cm.alloc_color('black') sw.sound = True sw.scale = 2 sw.level = 1 @@ -268,10 +256,21 @@ def _all_gone(sw): # # Window expose event # -def _expose_cb(win, event, sw): - sw.sprites.redraw_sprites() +def _expose_cb(sw, win, event): + ''' Callback to handle window expose events ''' + sw.do_expose_event(event) return True +def do_expose_event(sw, event): + ''' Handle the expose-event by drawing ''' + # Restrict Cairo to the exposed area + cr = sw.canvas.window.cairo_create() + cr.rectangle(event.area.x, event.area.y, + event.area.width, event.area.height) + cr.clip() + # Refresh sprite list + sw.sprites.redraw_sprites(cr=cr) + # # Shut it down # -- cgit v0.9.1