L04_lam_pgu.py

   1 #!/usr/bin/env python
   2 # demo of laminar.PanelOverlaySurface, by
   3 #  David Keeney 2006
   4 # based on version of Nehe's OpenGL lesson04
   5 #  by Paul Furber 2001 - m@verick.co.za
   6
   7 # you need pgu to be installed, and you need a copy of the default theme directory
   8 #   as 'test_theme', and you need the accompanying config.txt in that test_theme dir.
   9
  10 import sys
  11 sys.path.insert( 0, '..' )
  12
  13 from OpenGL.GL import *
  14 from OpenGL.GLU import *
  15 import pygame
  16 from pygame.locals import *
  17
  18 # import gui stuff
  19 from pgu import gui as pgui
  20 import lamina
  21
  22 rtri = rquad = 0.0
  23
  24 triOn = quadOn = True
  25
  26 def resize((width, height)):
  27     if height==0:
  28         height=1
  29     glViewport(0, 0, width, height)
  30     glMatrixMode(GL_PROJECTION)
  31     glLoadIdentity()
  32     gluPerspective(45, 1.0*width/height, 0.1, 100.0)
  33     glMatrixMode(GL_MODELVIEW)
  34     glLoadIdentity()
  35
  36 def init():
  37     glShadeModel(GL_SMOOTH)
  38     glClearColor(0.0, 0.5, 0.0, 0.0)
  39     glClearDepth(1.0)
  40     glEnable(GL_DEPTH_TEST)
  41     glDepthFunc(GL_LEQUAL)
  42     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)
  43
  44 def draw():
  45
  46     glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT)
  47     glLoadIdentity()
  48     glTranslatef(-1.5, 0.0, -6.0)
  49
  50     # draw triangle
  51     global rtri
  52     glRotatef(rtri, 0.0, 1.0, 0.0)
  53
  54     glBegin(GL_TRIANGLES)
  55     glColor3f(1.0, 0.0, 0.0)
  56     glVertex3f(0.0, 1.0, 0.0)
  57     glColor3f(0.0, 1.0, 0.0)
  58     glVertex3f(-1.0, -1.0, 0)
  59     glColor3f(0.0, 0.0, 1.0)
  60     glVertex3f(1.0, -1.0, 0)
  61     glEnd()
  62
  63     # draw quad
  64     glLoadIdentity()
  65     glTranslatef(1.5, 0.0, -6.0)
  66     global rquad
  67     glRotatef(rquad, 1.0, 0.0, 0.0)
  68
  69     glColor3f(0.5, 0.5, 1.0)
  70     glBegin(GL_QUADS)
  71     glVertex3f(-1.0, 1.0, 0)
  72     glVertex3f(1.0, 1.0, 0)
  73     glVertex3f(1.0, -1.0, 0)
  74     glVertex3f(-1.0, -1.0, 0)
  75     glEnd()
  76
  77     # draw gui
  78     glLoadIdentity()
  79     global gui_screen
  80     gui_screen.display()
  81
  82
  83 def main():
  84
  85     global rtri, rquad, gui_screen
  86     video_flags = OPENGL|DOUBLEBUF
  87
  88     pygame.init()
  89     pygame.display.set_mode((640,480), video_flags)
  90     font = pygame.font.SysFont("default", 18)
  91     fontBig = pygame.font.SysFont("default", 24)
  92     fontSub = pygame.font.SysFont("default", 20)
  93     theme = pgui.Theme('test_theme');
  94
  95     resize((640,480))
  96     init()
  97
  98
  99     # create PanelOverlaySurface
 100 #    gui_screen = lamina.LaminaPanelSurface((640,480), (-3.3, 2.5, 6.6, 5))
 101     gui_screen = lamina.LaminaScreenSurface()
 102
 103     gui = pgui.App(theme=theme)
 104     gui._screen = gui_screen.surf
 105
 106     # func to toggle triangle spin
 107     def triTog():
 108         global triOn
 109         triOn = not triOn
 110     # func to toggle quad spin
 111     def quadTog():
 112         global quadOn
 113         quadOn = not quadOn
 114
 115     # create page    # layout using document
 116     lo = pgui.Container(width=640)
 117
 118     # create page label
 119     title = pgui.Label("Lamina Demo : PGU", font=fontBig)
 120     lo.add(title,29,13)
 121
 122     # create triangle button, connect to triTog handler function,
 123     #  and install in gui
 124     btn1 = pgui.Button("Stop/Start Triangle")
 125     btn1.connect(pgui.CLICK, triTog)
 126     lo.add(btn1,120,440)
 127     btn2 = pgui.Button("Stop/Start Quad")
 128     btn2.connect(pgui.CLICK, quadTog)
 129     lo.add(btn2,420,440)
 130     gui.init(lo)
 131
 132     frames = 0
 133     ticks = pygame.time.get_ticks()
 134     while 1:
 135         event = pygame.event.poll()
 136         if event.type == QUIT or (event.type == KEYDOWN and event.key == K_ESCAPE):
 137             break
 138
 139         # handle gui events and raster updating
 140         gui.event((event))
 141         chg = gui.update(gui_screen.surf)
 142         if chg:
 143             gui_screen.refresh(chg)
 144
 145         # draw all objects
 146         draw()
 147
 148         # update rotation counters
 149         if triOn:
 150             rtri += 0.2
 151         if quadOn:
 152             rquad+= 0.2
 153
 154         # make changes visible
 155         pygame.display.flip()
 156         frames = frames+1
 157
 158     print "fps:  %d" % ((frames*1000)/(pygame.time.get_ticks()-ticks))
 159
 160
 161 if __name__ == '__main__': main()
 162