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Lightningbeam
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OpenGL now drawing something

This commit is contained in:
Skyler Lehmkuhl 2012-03-12 15:31:06 -04:00
parent 5da90b9a46
commit 1536b13693
3 changed files with 309 additions and 109 deletions
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6
lightningbeam.py
View File

@ -308,14 +308,14 @@ root.onMouseUp = onMouseUpGroup
root.onMouseMove = onMouseMoveGroup
root.onMouseDrag = onMouseDragGroup
root.onKeyDown = onKeyDownGroup
'''
e=ellipse(100,100,10,10,None)
e=ellipse(100,100,100,50,None)
e.onMouseDown = onMouseDownObj
e.onMouseMove = onMouseMoveObj
e.onMouseDrag = onMouseDragObj
e.onMouseUp = onMouseUpObj
e.onKeyDown = onKeyDownObj
root.add(e)'''
root.add(e)

6
misc_funcs.py
View File

@ -59,6 +59,12 @@ def update_tooloptions():
else:
i.setvisible(False)
def ave(x, y, fac):
"""Weighted average.
fac is the weight - 0.5 gives a standard average"""
return y - fac*(y-x)
def box(x, y, width, height, fill):
global objects
box = svlgui.Shape(x, y)

202
svlgui.py
View File

@ -171,7 +171,12 @@ if sys.platform=="linux2":
from GUI.Files import FileType
if USING_GL:
from OpenGL.GL import *
from OpenGL.GLU import *
from GUI import GL
try:
from PIL import Image as PILImage
except ImportError as err:
import Image as PILImage
from GUI.Geometry import offset_rect, rect_sized
#If we can import this, we are in the install directory. Mangle media paths accordingly.
@ -835,6 +840,76 @@ class CheckBox(Widget):
self.box.value = value
value = property(get_value, set_value)
class _CR(object):
"""Internal use only. This is a class that only exists for GLViews
to pass window dimensions on to their children."""
def __init__(self):
self.x = 0
self.y = 0
self.stack = []
def save(self):
glPushAttrib(GL_ALL_ATTRIB_BITS);
glPushMatrix()
self.stack.append((self.x, self.y))
def restore(self):
self.x, self.y = self.stack.pop()
glPopMatrix()
glPopAttrib()
def translate(self, x, y):
glTranslatef(x, y, 0);
def rotate(self, r):
pass
def scale(self, sx, sy):
pass
def drawCurve(self, points, precision=20):
npoints = []
ave = misc_funcs.ave
s = range(0, len(points)-2, 2)
for i in s:
for j in range(precision):
k=1.0*(precision-j)
x=ave( ave(ave(self.x,
points[i][0],
k/precision),
ave(points[i][0],
points[i+1][0],
k/precision),
k/precision),
ave(ave(points[i][0],
points[i+1][0],
k/precision),
ave(points[i+1][0],
points[i+2][0],
k/precision),
k/precision),
k/precision)
y=ave( ave(ave(self.y,
points[i][1],
k/precision),
ave(points[i][1],
points[i+1][1],
k/precision),
k/precision),
ave(ave(points[i][1],
points[i+1][1],
k/precision),
ave(points[i+1][1],
points[i+2][1],
k/precision),
k/precision),
k/precision)
npoints.append((x, y))
glVertex2f(self.x, self.y)
glVertex2f(npoints[0][0], npoints[0][1])
for i in range(len(npoints)-1):
#drawLine(gc, drawable, npoints[i][0], npoints[i][1], npoints[i+1][0], npoints[i+1][1])
print npoints[i][0],npoints[i][1],npoints[i+1][0],npoints[i+1][1]
glVertex2f(npoints[i][0], npoints[i][1])
glVertex2f(npoints[i+1][0], npoints[i+1][1])
glVertex2f(npoints[-1][0],npoints[-1][1])
glVertex2f(*points[2])
class Canvas(Widget):
def __init__(self,width=False,height=False):
@ -870,19 +945,26 @@ class Canvas(Widget):
if USING_GL:
class OSXCanvas(GL.GLView):
def init_context(self):
glViewport(0, 0, width, height);
glClearColor(0.75,0.75,0.75,0.0)
def init_projection(self):
glViewport(0, 0, width, height);
glEnable( GL_TEXTURE_2D );
glEnable (GL_BLEND);
#glDisable( GL_LIGHTING)
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
def render(self):
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
gluOrtho2D(0, width, 0, height); #TODO: width, height
glMatrixMode(GL_MODELVIEW);
cr = _CR()
cr.width = self.width
cr.height = self.height
for i in self.objs:
i.draw(None)
self.canvas = OSXCanvas(double_buffer=True,multisample=True,samples_per_pixel=8)
i.draw(cr)
self.canvas = OSXCanvas()
self.canvas.update()
else:
class OSXCanvas (ScrollableView):
def draw(self, canvas, update_rect):
@ -1078,6 +1160,10 @@ class Image(object):
self.name = image.split(sep)[-1]
self.path = image
self.type="Image"
if USING_GL:
# This is an OpenGL texture ID.
self.gltexture = self.loadGLImage(file = image)
if animated:
self.animated = True
self.htiles = htiles
@ -1119,6 +1205,41 @@ class Image(object):
if SYSTEM=="android":
pass
elif SYSTEM=="osx":
if USING_GL:
pass
glEnable(GL_TEXTURE_2D);
glColor3f(0.5,0.5,0.5);
#self.gltexture.bind()
#self.gltexture.gl_tex_image_2d(self.image, with_mipmaps=True)
glBindTexture(GL_TEXTURE_2D, self.gltexture)
if self.animated:
src_rect = [(1.0/self.htiles)*(self.pointer%self.htiles),
(1.0/self.vtiles)*(self.pointer/self.htiles),
(1.0/self.htiles)*(self.pointer%self.htiles+1),
(1.0/self.vtiles)*(self.pointer/self.htiles+1)]
width = self.image.bounds[2]/self.htiles
height = self.image.bounds[3]/self.vtiles
else:
src_rect = [0.0, 0.0, 1.0, 1.0]
width, height = self.image.bounds
glBegin(GL_QUADS);
glTexCoord2f(0.0, 0.0);
#glTexCoord2f(src_rect[0], src_rect[1]);
glVertex2f( self.x, cr.height-(self.y));
glTexCoord2f(1.0, 0.0);
#glTexCoord2f(src_rect[2], src_rect[1]);
glVertex2f(width+self.x, cr.height-(self.y));
glTexCoord2f(1.0, 1.0);
#glTexCoord2f(src_rect[2], src_rect[3]);
glVertex2f( width+self.x, cr.height-(height+self.y));
glTexCoord2f(0.0, 1.0);
#glTexCoord2f(src_rect[0], src_rect[3]);
glVertex2f( self.x, cr.height-(height+self.y));
print src_rect
glEnd();
else:
cr.gsave()
if sep=="\\":
# Very ugly hack for Windows. :(
@ -1156,6 +1277,25 @@ class Image(object):
def set_image(self,img):
if SYSTEM=="osx":
self.image = GUI.Image(file = img)
if USING_GL:
self.gltexture = self.loadGLImage(file = img)
def loadGLImage(self, file = None ):
"""Load an image file as a 2D texture using PIL"""
if not file:
file = self.path
im = PILImage.open(file)
try:
ix, iy, image = im.size[0], im.size[1], im.tostring("raw", "RGBA", 0, -1)
except SystemError:
ix, iy, image = im.size[0], im.size[1], im.tostring("raw", "RGBX", 0, -1)
ID = glGenTextures(1)
glBindTexture(GL_TEXTURE_2D, ID)
glPixelStorei(GL_UNPACK_ALIGNMENT,1)
glTexImage2D(
GL_TEXTURE_2D, 0, 3, ix, iy, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image
)
return ID
def hitTest(self,x,y):
hits = False
# points "a" and "b" forms the anchored segment.
@ -1261,8 +1401,40 @@ class Shape (object):
elif SYSTEM=="osx":
if USING_GL:
pass
cr.save()
cr.translate(self.x, cr.height-self.y)
cr.rotate(self.rotation)
cr.scale(self.xscale*1.0, self.yscale*1.0)
#pencolor, fillcolor, pensize
#Temporary.
glColor3f(1.0,0.0,0.0)
glBegin(GL_LINES)
for i in self.shapedata:
if i[0]=="M":
point = (i[1], i[2])
#glVertex2f(point[0], cr.height-point[1])
cr.x, cr.y = point
elif i[0]=="L":
point = (i[1], i[2])
#glVertex2f(point[0], cr.height-point[1])
glVertex2f(cr.x, -cr.y)
glVertex2f(point[0], -point[1])
cr.x, cr.y = point
elif i[0]=="C":
pointa = (i[1], i[2])
pointb = (i[3], i[4])
pointc = (i[5], i[6])
#TODO: curve
#glVertex2f(pointc[0], -pointc[1])
#glVertex2f(pointc[0], -pointc[1])
cr.drawCurve([ pointa, pointb, pointc])
cr.x, cr.y = pointc
glEnd()
cr.restore()
else:
cr.gsave()
if sep=="\\":
# Very ugly hack for Windows. :(
@ -1492,6 +1664,9 @@ class Text (object):
SITER+=1
def draw(self,cr=None,parent=None,rect=None):
if SYSTEM=="osx":
if USING_GL:
pass
else:
cr.font = self.font
cr.textcolor = self.fill.pygui
cr.gsave()
@ -1692,6 +1867,25 @@ class frame:
tb+="cr.restore()\n"
elif SYSTEM=="osx":
self.group = group
if USING_GL:
#cr.gsave()
#cr.rotate(group.rotation)
#cr.translate(group.x,group.y)
#cr.scale(group.xscale,group.yscale)
def dodraw(obj, cr):
obj.draw(cr, self)
result = [dodraw(obj, cr) for obj in self.objs]
#if currentselect:
#cr.gsave()
#cr.newpath()
#cr.pencolor = Colors.rgb(0,0,1)
#cr.rect([currentselect.minx-1,currentselect.miny-1,
# currentselect.maxx+currentselect.x+2,
# currentselect.maxy+currentselect.y+2])
#cr.stroke()
#cr.grestore()
#cr.grestore()
else:
cr.gsave()
cr.rotate(group.rotation)
cr.translate(group.x,group.y)