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Diffstat (limited to 'sprites.py')
| -rw-r--r-- | sprites.py | 852 |
1 files changed, 0 insertions, 852 deletions
diff --git a/sprites.py b/sprites.py deleted file mode 100644 index 0ef8dca..0000000 --- a/sprites.py +++ /dev/null @@ -1,852 +0,0 @@ -# -*- coding: utf-8 -*- - -#Copyright (c) 2007-8, Playful Invention Company. -#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 -#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. - -''' - -sprites.py is a simple sprites library for managing graphics objects, -'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 Sprite manages individual sprites within the collection. - -Example usage: - # Import the classes into your program. - from sprites import Sprites Sprite - - # 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("<svg>...some svg code...</svg>") - - # Create a sprite at position x1, y1. - my_sprite = sprites.Sprite(self.sprite_list, x1, y1, my_pixbuf) - - # Move the sprite to a new position. - my_sprite.move((x1+dx, y1+dy)) - - # Create another "pixbuf". - your_pixbuf = svg_str_to_pixbuf("<svg>...some svg code...</svg>") - - # Create a sprite at position x2, y2. - your_sprite = sprites.Sprite(self.sprite_list, x2, y2, my_pixbuf) - - # Assign the sprites to layers. - # In this example, your_sprite will be on top of my_sprite. - my_sprite.set_layer(100) - your_sprite.set_layer(200) - - # 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') - pl.write(svg_string) - pl.close() - pixbuf = pl.get_pixbuf() - return pixbuf -''' -## <-----------GTK2---------------->## - -''' - - -import pygtk -pygtk.require('2.0') -import gtk -import pango -import pangocairo -import cairo - -class Sprites: - # 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): - # 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: - 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, inverse=False): - # Search based on (x, y) position. Return the 'top/first' one. # - list = self.list[:] - if not inverse: - list.reverse() - for spr in list: - if spr.hit(pos): - return spr - return None - - 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: - 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) - - -class Sprite: - # A class for the individual sprites # - - def __init__(self, sprites, x, y, image): - # Initialize an individual sprite # - self._sprites = sprites - 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"] - self._vert_align = ["middle"] - self._fd = None - self._bold = False - self._italic = False - self._color = None - self._margins = [0, 0, 0, 0] - self.layer = 100 - self.labels = [] - 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): - # 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(image, gtk.gdk.Pixbuf) or \ - isinstance(image, cairo.ImageSurface): - w = image.get_width() - h = image.get_height() - else: - 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.rect.width: - self.rect.width = w + dx - if h + dy > self.rect.height: - self.rect.height = h + dy - if isinstance(image, cairo.ImageSurface): - self.cached_surfaces[i] = image - else: # Convert to Cairo surface - 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.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.rect.x += int(pos[0]) - self.rect.y += int(pos[1]) - self.inval() - - def get_xy(self): - # Return current (x, y) position # - return (self.rect.x, self.rect.y) - - def get_dimensions(self): - # 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=None): - # Set the layer for a sprite # - self._sprites.remove_from_list(self) - 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) - self.inval() - return - self._sprites.append_to_list(self) - 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", " ") - else: - self.labels[i] = str(new_label) - self.inval() - - def set_margins(self, l=0, t=0, r=0, b=0): - # 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') - if self._color is None: - 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): - # 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 - self._horiz_align[i] = horiz_align - 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): - # 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(cr) - - def hit(self, pos): - # Is (x, y) on top of the sprite? # - x, y = pos - if x < self.rect.x: - return False - if x > self.rect.x + self.rect.width: - return False - if y < self.rect.y: - return False - if y > self.rect.y + self.rect.height: - return False - return True - - 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.rect.height - self._margins[1] - self._margins[3] - for i in range(len(self.labels)): - 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 - if w > my_width: - if self._rescale[i]: - self._fd.set_size( - int(self._scale[i] * pango.SCALE * my_width / w)) - pl.set_font_description(self._fd) - w = pl.get_size()[0] / pango.SCALE - else: - j = len(self.labels[i]) - 1 - while(w > my_width and j > 0): - 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 - j -= 1 - if self._horiz_align[i] == "center": - x = int(self.rect.x + self._margins[0] + (my_width - w) / 2) - elif self._horiz_align[i] == 'left': - x = int(self.rect.x + self._margins[0]) - else: # right - 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.rect.y + self._margins[1] + (my_height - h) / 2) - elif self._vert_align[i] == "top": - y = int(self.rect.y + self._margins[1]) - else: # bottom - 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): - # 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 maximum width for a label # - return self.rect.width - self._margins[0] - self._margins[2] - - def label_safe_height(self): - # Return maximum height for a label # - return self.rect.height - self._margins[1] - self._margins[3] - - def label_left_top(self): - # Return the upper-left corner of the label safe zone # - return(self._margins[0], self._margins[1]) - - def get_pixel(self, pos, i=0): - # 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) - -''' - -#<-----------------------GTK3-----------># -import gi -from gi.repository import Gtk, GdkPixbuf, Gdk -from gi.repository import Pango, PangoCairo -import cairo - - -class Sprites: - ''' A class for the list of sprites and everything they share in common ''' - - def __init__(self, widget): - ''' Initialize an empty array of sprites ''' - self.cr = None - self.widget = widget - self.list = [] - - def set_cairo_context(self, cr): - ''' Cairo context may be set or reset after __init__ ''' - self.cr = cr - - def get_sprite(self, i): - ''' 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: - 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 - return None - - 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: - 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) - - -class Sprite: - ''' A class for the individual sprites ''' - - def __init__(self, sprites, x, y, image): - ''' Initialize an individual sprite ''' - self._sprites = sprites - self.save_xy = (x, y) # remember initial (x, y) position - self.rect = [int(x), int(y), 0, 0] - self._scale = [12] - self._rescale = [True] - self._horiz_align = ["center"] - self._vert_align = ["middle"] - self._x_pos = [None] - self._y_pos = [None] - self._fd = None - self._bold = False - self._italic = False - self._color = None - self._margins = [0, 0, 0, 0] - self.layer = 100 - self.labels = [] - self.images = [] - 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): - ''' Add an image to the sprite. ''' - while len(self.images) < i + 1: - self.images.append(None) - self._dx.append(0) - self._dy.append(0) - self.images[i] = image - self._dx[i] = dx - self._dy[i] = dy - if hasattr(self.images[i], 'get_width'): - w = self.images[i].get_width() - h = self.images[i].get_height() - else: - w, h = self.images[i].get_size() - if i == 0: # Always reset width and height when base image changes. - self.rect[2] = w + dx - self.rect[3] = h + dy - else: - if w + dx > self.rect[2]: - self.rect[2] = w + dx - if h + dy > self.rect[3]: - self.rect[3] = h + dy - - def move(self, pos): - ''' Move to new (x, y) position ''' - self.inval() - self.rect[0], self.rect[1] = int(pos[0]), int(pos[1]) - self.inval() - - def move_relative(self, pos): - ''' Move to new (x+dx, y+dy) position ''' - self.inval() - self.rect[0] += int(pos[0]) - self.rect[1] += int(pos[1]) - self.inval() - - def get_xy(self): - ''' Return current (x, y) position ''' - return (self.rect[0], self.rect[1]) - - def get_dimensions(self): - ''' Return current size ''' - return (self.rect[2], self.rect[3]) - - 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=None): - ''' Set the layer for a sprite ''' - self._sprites.remove_from_list(self) - if layer is not None: - self.layer = layer - for i in range(self._sprites.length_of_list()): - if self.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): - ''' 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", " ") - else: - self.labels[i] = str(new_label) - self.inval() - - def set_margins(self, l=0, t=0, r=0, b=0): - ''' 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') - if self._color is None: - 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]) - self._x_pos.append(self._x_pos[0]) - self._y_pos.append(self._y_pos[0]) - - def set_font(self, font): - ''' Set the font for a label ''' - self._fd = Pango.FontDescription(font) - - def set_label_color(self, 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", x_pos=None, y_pos=None, i=0): - ''' Set the various label attributes ''' - 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 - self._x_pos[i] = x_pos - self._y_pos[i] = y_pos - - 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): - ''' Invalidate a region for gtk ''' - # self._sprites.window.invalidate_rect(self.rect, False) - self._sprites.widget.queue_draw_area(self.rect[0], - self.rect[1], - self.rect[2], - self.rect[3]) - - def draw(self, cr=None): - ''' Draw the sprite (and label) ''' - if cr is None: - cr = self._sprites.cr - if cr is None: - print 'sprite.draw: no Cairo context.' - return - for i, img in enumerate(self.images): - if isinstance(img, GdkPixbuf.Pixbuf): - Gdk.cairo_set_source_pixbuf(cr, img, - self.rect[0] + self._dx[i], - self.rect[1] + self._dy[i]) - cr.rectangle(self.rect[0] + self._dx[i], - self.rect[1] + self._dy[i], - self.rect[2], - self.rect[3]) - cr.fill() - elif type(img) == cairo.ImageSurface: - cr.set_source_surface(img, self.rect[0] + self._dx[i], - self.rect[1] + self._dy[i]) - cr.rectangle(self.rect[0] + self._dx[i], - self.rect[1] + self._dy[i], - self.rect[2], - self.rect[3]) - cr.fill() - else: - print 'sprite.draw: source not a pixbuf (%s)' % (type(img)) - if len(self.labels) > 0: - self.draw_label(cr) - - def hit(self, pos): - ''' Is (x, y) on top of the sprite? ''' - x, y = pos - if x < self.rect[0]: - return False - if x > self.rect[0] + self.rect[2]: - return False - if y < self.rect[1]: - return False - if y > self.rect[1] + self.rect[3]: - return False - return True - - def draw_label(self, cr): - ''' Draw the label based on its attributes ''' - my_width = self.rect[2] - self._margins[0] - self._margins[2] - if my_width < 0: - my_width = 0 - my_height = self.rect[3] - self._margins[1] - self._margins[3] - for i in range(len(self.labels)): - pl = PangoCairo.create_layout(cr) - pl.set_text(str(self.labels[i]), -1) - 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 > my_width: - if self._rescale[i]: - self._fd.set_size( - int(self._scale[i] * Pango.SCALE * my_width / w)) - pl.set_font_description(self._fd) - w = pl.get_size()[0] / Pango.SCALE - else: - j = len(self.labels[i]) - 1 - while(w > my_width and j > 0): - pl.set_text( - "…" + self.labels[i][len(self.labels[i]) - j:], -1) - 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._x_pos[i] is not None: - x = int(self.rect[0] + self._x_pos[i]) - elif self._horiz_align[i] == "center": - x = int(self.rect[0] + self._margins[0] + (my_width - w) / 2) - elif self._horiz_align[i] == 'left': - x = int(self.rect[0] + self._margins[0]) - else: # right - x = int(self.rect[0] + self.rect[2] - w - self._margins[2]) - h = pl.get_size()[1] / Pango.SCALE - if self._y_pos[i] is not None: - y = int(self.rect[1] + self._y_pos[i]) - elif self._vert_align[i] == "middle": - y = int(self.rect[1] + self._margins[1] + (my_height - h) / 2) - elif self._vert_align[i] == "top": - y = int(self.rect[1] + self._margins[1]) - else: # bottom - y = int(self.rect[1] + self.rect[3] - h - self._margins[3]) - cr.save() - cr.translate(x, y) - cr.set_source_rgb(self._color[0], self._color[1], self._color[2]) - PangoCairo.update_layout(cr, pl) - PangoCairo.show_layout(cr, pl) - cr.restore() - - def label_width(self, cr=None): - ''' Calculate the width of a label ''' - if cr is None: - cr = self._sprites.cr - max = 0 - for i in range(len(self.labels)): - pl = PangoCairo.create_layout(cr) - pl.set_text(str(self.labels[i]), -1) - 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 label_safe_width(self): - ''' Return maximum width for a label ''' - return self.rect[2] - self._margins[0] - self._margins[2] - - def label_safe_height(self): - ''' Return maximum height for a label ''' - return self.rect[3] - self._margins[1] - self._margins[3] - - def label_left_top(self): - ''' Return the upper-left corner of the label safe zone ''' - return(self._margins[0], self._margins[1]) - - def get_pixel(self, pos, i=0): - ''' Return the pixl at (x, y) ''' - x, y = pos - x = x - self.rect[0] - y = y - self.rect[1] - 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) |