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"""
This file is part of the 'Elements' Project
Elements is a 2D Physics API for Python (supporting Box2D2)
Copyright (C) 2008, The Elements Team, <elements@linuxuser.at>
Home: http://elements.linuxuser.at
IRC: #elements on irc.freenode.org
Code: http://www.assembla.com/wiki/show/elements
svn co http://svn2.assembla.com/svn/elements
License: GPLv3 | See LICENSE for the full text
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
import pygame
from pygame.locals import *
import tools
COLOR_HEX_BLUE1 = "6491a4"
COLOR_HEX_BLUE2 = "9ec9ff"
class MenuItem:
# padding [px]: left, top, right, bottom
padding = (5, 2, 5, 2)
def empty(self, *args):
pass
def __init__(self, title, pos, userData, parent=None, callback=None):
self.title = title
self.userData = userData
self.parent = parent
self.childs = []
if self.parent:
self.visible = False
else:
self.visible = True
if callback:
self.callback = callback
else:
self.callback = self.empty
# Create Surface and Stuff :)
self.font = pygame.font.Font(None, 32)
text = self.font.render(title, 1, (255,255,255))
rx, ry, rw, rh = rect = text.get_rect()
pl, pt, pr, pb = self.padding
s1 = pygame.Surface((rw+pl+pr, rh+pt+pb))
s1.fill(tools.hex2rgb(COLOR_HEX_BLUE1))
s1.blit(text, (pl, pt))
s2 = pygame.Surface((rw+pl+pr, rh+pt+pb))
s2.fill(tools.hex2rgb(COLOR_HEX_BLUE2))
s2.blit(text, (pl, pt))
self.rect = s1.get_rect().move(pos)
self.surface_inactive = s1
self.surface_active = s2
def pos_inside(self, pos):
if not self.visible:
return False
x,y,w,h = self.rect
px, py = pos
if px > x and px < x+w and py > y and py < y+h:
return True
else:
return False
class MenuClass:
""" Important: Never delete an Item, just overwrite it if deleting,
else the menuitem id's get messed up
"""
# current active menu point it
focus = False
# each item is stored as MenuItem
items = []
# where to start drawing
start_at = (0,0)
# menubar properties
height = 0 # px
width = 0 # px (set in set_width)
setWidth = False # if width was set by hand (if not, increase width by adding stuff)
def __init__(self):
self.draw_at = self.start_at
def set_width(self, width):
self.setWidth = True
self.width = width
def addItem(self, title, callback=None, userData='', parent=None):
# Get position for the Item
if parent: draw_at = (0,0)
else: draw_at = self.draw_at
# Create Items
M = MenuItem(title=title, pos=draw_at, userData=userData, parent=parent, callback=callback)
self.items.append(M)
# Set a new position
x,y,w,h = M.rect
x, y = self.draw_at
if parent:
# Set the info that the item has a child to the parent item
self.items[parent-1].childs.append(len(self.items)-1)
else:
# New next drawing position
self.draw_at = (x+w, y)
# Adjust the width of the menu bar
if not self.setWidth:
self.width = x+w
# Adjust the height of the menu bar
if h > self.height: self.height = h + 2
# Return array id of this item
return len(self.items)
def click(self, pos):
""" Checks a click for menuitems and starts the callback if found
Return: True if a menu item was found or hit the MenuBar, and False if not
"""
focus_in = self.focus
found = False
for i in xrange(len(self.items)):
item = self.items[i]
if item.pos_inside(pos):
found = True
item.callback(item.title, item.userData)
# Expand the menu if necessary
if len(item.childs) > 0:
self.focus = i+1
# Close any opened menu windows if clicked somewhere else
if self.focus == focus_in:
self.focus = False
self.subwin_rect = (0,0,0,0)
for item in self.items:
if item.parent:
item.visible = False
# Check if click is inside menubar
x,y = pos
mx, my = self.start_at
if found:
return True
else:
return False
def draw(self, surface):
""" Draw the menu with pygame on a given surface
"""
s = pygame.Surface((self.width, self.height))
s.fill(tools.hex2rgb(COLOR_HEX_BLUE1))
surface.blit(s, (0,0))
for i in xrange(len(self.items)):
item = self.items[i]
if not item.parent:
x,y,w,h = item.rect
if self.focus == i+1:
surface.blit(item.surface_active, (x,y))
else:
surface.blit(item.surface_inactive, (x,y))
# If a menu item is open, draw that
if self.focus:
width = 0
height = 0
i = []
for j in self.items:
if j.parent == self.focus:
i.append(j)
x, y, w, h = j.rect
if w > width: width = w
height += h
if len(i) > 0:
s = pygame.Surface((width, height))
s.fill(tools.hex2rgb(COLOR_HEX_BLUE1))
# Parent Coordinates
px, py, pw, ph = self.items[self.focus-1].rect
# y Counter
y = 0
for item in i:
item.visible = True
s.blit(item.surface_inactive, (0, y))
ix, iy, iw, ih = item.rect
if (ix, iy) == (0, 0):
item.rect = item.rect.move((px, y+ph))
ix, iy, iw, ih = item.rect
if iw < width:
item.rect = (ix,iy,width,ih)
y += ih
surface.blit(s, (px,py+ph))
self.subwin_rect = s.get_rect().move(px, py+ph)
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