def __init__(self, context, ImgData):
self.ImgData = None
self.texture = None
self.context = context
self.cache = None
self.filename = ImgData
# Detect the type of data passed in
if isinstance(ImgData, file):
self.ImgData = ImgData.read()
elif isinstance(ImgData, basestring):
self.texture = Texture(ImgData)
elif isinstance(ImgData,
Image.Image): #stump: let a PIL image be passed in
self.texture = Texture()
self.texture.loadImage(ImgData)
# Make sure we have a valid texture
if not self.texture:
if isinstance(ImgData, basestring):
e = "Unable to load texture for %s." % ImgData
else:
e = "Unable to load texture for SVG file."
Log.error(e)
raise RuntimeError(e)
self.pixelSize = self.texture.pixelSize #the size of the image in pixels (from texture)
self.position = [0.0, 0.0] #position of the image in the viewport
self.scale = [1.0, 1.0] #percentage scaling
self.angle = 0 #angle of rotation (degrees)
self.color = (1.0, 1.0, 1.0, 1.0) #glColor rgba
self.rect = (0, 1, 0, 1) #texture mapping coordinates
self.shift = -.5 #horizontal alignment
self.vshift = -.5 #vertical alignment
self.path = self.texture.name #path of the image file
self.texArray = np.zeros((4, 2), dtype=np.float32)
self.createTex()
def __init__(self, context, ImgData):
self.ImgData = None
self.texture = None
self.context = context
self.cache = None
self.filename = ImgData
# Detect the type of data passed in
if isinstance(ImgData, file):
self.ImgData = ImgData.read()
elif isinstance(ImgData, basestring):
self.texture = Texture(ImgData)
elif isinstance(ImgData, Image.Image): #stump: let a PIL image be passed in
self.texture = Texture()
self.texture.loadImage(ImgData)
# Make sure we have a valid texture
if not self.texture:
if isinstance(ImgData, basestring):
e = "Unable to load texture for %s." % ImgData
else:
e = "Unable to load texture for SVG file."
Log.error(e)
raise RuntimeError(e)
self.pixelSize = self.texture.pixelSize #the size of the image in pixels (from texture)
self.position = [0.0,0.0] #position of the image in the viewport
self.scale = [1.0,1.0] #percentage scaling
self.angle = 0 #angle of rotation (degrees)
self.color = (1.0,1.0,1.0,1.0) #glColor rgba
self.rect = (0,1,0,1) #texture mapping coordinates
self.shift = -.5 #horizontal alignment
self.vshift = -.5 #vertical alignment
self.path = self.texture.name #path of the image file
self.texArray = np.zeros((4,2), dtype=np.float32)
self.createTex()
class ImgDrawing(object):
VTX_ARRAY = np.array([[0.0, 1.0], [1.0, 1.0], [1.0, 0.0], [0.0, 0.0]], dtype=np.float32) #hard-coded quad for drawing textures onto
def __init__(self, context, ImgData):
self.ImgData = None
self.texture = None
self.context = context
self.cache = None
self.filename = ImgData
# Detect the type of data passed in
if isinstance(ImgData, file):
self.ImgData = ImgData.read()
elif isinstance(ImgData, basestring):
self.texture = Texture(ImgData)
elif isinstance(ImgData, Image.Image): #stump: let a PIL image be passed in
self.texture = Texture()
self.texture.loadImage(ImgData)
# Make sure we have a valid texture
if not self.texture:
if isinstance(ImgData, basestring):
e = "Unable to load texture for %s." % ImgData
else:
e = "Unable to load texture for SVG file."
Log.error(e)
raise RuntimeError(e)
self.pixelSize = self.texture.pixelSize #the size of the image in pixels (from texture)
self.position = [0.0,0.0] #position of the image in the viewport
self.scale = [1.0,1.0] #percentage scaling
self.angle = 0 #angle of rotation (degrees)
self.color = (1.0,1.0,1.0,1.0) #glColor rgba
self.rect = (0,1,0,1) #texture mapping coordinates
self.shift = -.5 #horizontal alignment
self.vshift = -.5 #vertical alignment
self.path = self.texture.name #path of the image file
self.texArray = np.zeros((4,2), dtype=np.float32)
self.createTex()
def createTex(self):
tA = self.texArray
rect = self.rect
#topLeft, topRight, bottomRight, bottomLeft
tA[0,0] = rect[0]; tA[0,1] = rect[3]
tA[1,0] = rect[1]; tA[1,1] = rect[3]
tA[2,0] = rect[1]; tA[2,1] = rect[2]
tA[3,0] = rect[0]; tA[3,1] = rect[2]
def width1(self):
"""
@return the width of the texture in pixels
"""
width = self.pixelSize[0]
if width:
return width
else:
return 0
def height1(self):
"""
@return the height of the texture in pixels
"""
height = self.pixelSize[1]
if height is not None:
return height
else:
return 0
def widthf(self, pixelw):
"""
@param pixelw - a width in pixels
@return the scaled ratio of the pixelw divided by the pixel width of the texture
"""
width = self.pixelSize[0]
if width is not None:
wfactor = pixelw/width
return wfactor
else:
return 0
def setPosition(self, x, y, fit = CENTER):
"""
Sets position of this image on screen
@param fit: Adjusts the texture so the coordinate for the y-axis placement can be
on the top side (1), bottom side (2), or center point (any other value) of the image
"""
if fit == CENTER: #y is center
pass
elif fit == TOP: #y is on top (not center)
y = y - ((self.pixelSize[1] * abs(self.scale[1]))*.5*(self.context.geometry[3]/SCREEN_HEIGHT))
elif fit == BOTTOM: #y is on bottom
y = y + ((self.pixelSize[1] * abs(self.scale[1]))*.5*(self.context.geometry[3]/SCREEN_HEIGHT))
self.position = [x,y]
def setScale(self, width, height, stretched = 0):
"""
@param stretched: Bitmask stretching the image according to the following values
0) does not stretch the image
1) fits it to the width of the viewport
2) fits it to the height of the viewport
3) stretches it so it fits the viewport
4) preserves the aspect ratio while stretching
"""
if stretched & FULL_SCREEN: # FULL_SCREEN is FIT_WIDTH | FIT_HEIGHT
xStretch = 1
yStretch = 1
if stretched & FIT_WIDTH:
xStretch = float(self.context.geometry[2]) / self.pixelSize[0]
if stretched & FIT_HEIGHT:
yStretch = float(self.context.geometry[3]) / self.pixelSize[1]
if stretched & KEEP_ASPECT:
if stretched & FULL_SCREEN == FULL_SCREEN: #Note that on FULL_SCREEN | KEEP_ASPECT we will scale to the larger and clip.
if xStretch > yStretch:
yStretch = xStretch
else:
xStretch = yStretch
else:
if stretched & FIT_WIDTH:
yStretch = xStretch
else:
xStretch = yStretch
width *= xStretch
height *= yStretch
self.scale = [width, height]
def setAngle(self, angle):
self.angle = angle
def setRect(self, rect):
"""
@param rect: The surface rectangle, this is used for cropping the texture
"""
if not rect == self.rect:
self.rect = rect
self.createTex()
def setAlignment(self, alignment):
"""
@param alignment: Adjusts the texture so the coordinate for x-axis placement can either be
on the left side (0), center point (1), or right(2) side of the image
"""
if alignment == CENTER:#center
self.shift = -.5
elif alignment == LEFT: #left
self.shift = 0
elif alignment == RIGHT:#right
self.shift = -1.0
def setVAlignment(self, alignment):
"""
@param valignment: Adjusts the texture so the coordinate for y-axis placement can either be
on the bottom side (0), center point (1), or top(2) side of the image
"""
if alignment == CENTER:#center
self.vshift = -.5
if alignment == TOP:#bottom
self.vshift = 0
elif alignment == BOTTOM:#top
self.vshift = -1.0
def setColor(self, color):
if len(color) == 3:
color = (color[0], color[1], color[2], 1.0)
self.color = color
def draw(self):
with cmgl.PushedSpecificMatrix(GL_TEXTURE):
with cmgl.PushedSpecificMatrix(GL_PROJECTION):
with cmgl.MatrixMode(GL_PROJECTION):
self.context.setProjection()
with cmgl.PushedMatrix():
glLoadIdentity()
glTranslate(self.position[0], self.position[1], 0.0)
glRotatef(-self.angle, 0, 0, 1)
glScalef(self.scale[0], self.scale[1], 1.0)
glScalef(self.pixelSize[0], self.pixelSize[1], 1)
glTranslatef(self.shift, self.vshift, 0)
glColor4f(*self.color)
glEnable(GL_TEXTURE_2D)
self.texture.bind()
cmgl.drawArrays(GL_QUADS, vertices=ImgDrawing.VTX_ARRAY, texcoords=self.texArray)
glDisable(GL_TEXTURE_2D)
class ImgDrawing(object):
VTX_ARRAY = np.array(
[[0.0, 1.0], [1.0, 1.0], [1.0, 0.0], [0.0, 0.0]],
dtype=np.float32) #hard-coded quad for drawing textures onto
def __init__(self, context, ImgData):
self.ImgData = None
self.texture = None
self.context = context
self.cache = None
self.filename = ImgData
# Detect the type of data passed in
if isinstance(ImgData, file):
self.ImgData = ImgData.read()
elif isinstance(ImgData, basestring):
self.texture = Texture(ImgData)
elif isinstance(ImgData,
Image.Image): #stump: let a PIL image be passed in
self.texture = Texture()
self.texture.loadImage(ImgData)
# Make sure we have a valid texture
if not self.texture:
if isinstance(ImgData, basestring):
e = "Unable to load texture for %s." % ImgData
else:
e = "Unable to load texture for SVG file."
Log.error(e)
raise RuntimeError(e)
self.pixelSize = self.texture.pixelSize #the size of the image in pixels (from texture)
self.position = [0.0, 0.0] #position of the image in the viewport
self.scale = [1.0, 1.0] #percentage scaling
self.angle = 0 #angle of rotation (degrees)
self.color = (1.0, 1.0, 1.0, 1.0) #glColor rgba
self.rect = (0, 1, 0, 1) #texture mapping coordinates
self.shift = -.5 #horizontal alignment
self.vshift = -.5 #vertical alignment
self.path = self.texture.name #path of the image file
self.texArray = np.zeros((4, 2), dtype=np.float32)
self.createTex()
def createTex(self):
tA = self.texArray
rect = self.rect
#topLeft, topRight, bottomRight, bottomLeft
tA[0, 0] = rect[0]
tA[0, 1] = rect[3]
tA[1, 0] = rect[1]
tA[1, 1] = rect[3]
tA[2, 0] = rect[1]
tA[2, 1] = rect[2]
tA[3, 0] = rect[0]
tA[3, 1] = rect[2]
def width1(self):
"""
@return the width of the texture in pixels
"""
width = self.pixelSize[0]
if width:
return width
else:
return 0
def height1(self):
"""
@return the height of the texture in pixels
"""
height = self.pixelSize[1]
if height is not None:
return height
else:
return 0
def widthf(self, pixelw):
"""
@param pixelw - a width in pixels
@return the scaled ratio of the pixelw divided by the pixel width of the texture
"""
width = self.pixelSize[0]
if width is not None:
wfactor = pixelw / width
return wfactor
else:
return 0
def setPosition(self, x, y, fit=CENTER):
"""
Sets position of this image on screen
@param fit: Adjusts the texture so the coordinate for the y-axis placement can be
on the top side (1), bottom side (2), or center point (any other value) of the image
"""
if fit == CENTER: #y is center
pass
elif fit == TOP: #y is on top (not center)
y = y - ((self.pixelSize[1] * abs(self.scale[1])) * .5 *
(self.context.geometry[3] / SCREEN_HEIGHT))
elif fit == BOTTOM: #y is on bottom
y = y + ((self.pixelSize[1] * abs(self.scale[1])) * .5 *
(self.context.geometry[3] / SCREEN_HEIGHT))
self.position = [x, y]
def setScale(self, width, height, stretched=0):
"""
@param stretched: Bitmask stretching the image according to the following values
0) does not stretch the image
1) fits it to the width of the viewport
2) fits it to the height of the viewport
3) stretches it so it fits the viewport
4) preserves the aspect ratio while stretching
"""
if stretched & FULL_SCREEN: # FULL_SCREEN is FIT_WIDTH | FIT_HEIGHT
xStretch = 1
yStretch = 1
if stretched & FIT_WIDTH:
xStretch = float(self.context.geometry[2]) / self.pixelSize[0]
if stretched & FIT_HEIGHT:
yStretch = float(self.context.geometry[3]) / self.pixelSize[1]
if stretched & KEEP_ASPECT:
if stretched & FULL_SCREEN == FULL_SCREEN: #Note that on FULL_SCREEN | KEEP_ASPECT we will scale to the larger and clip.
if xStretch > yStretch:
yStretch = xStretch
else:
xStretch = yStretch
else:
if stretched & FIT_WIDTH:
yStretch = xStretch
else:
xStretch = yStretch
width *= xStretch
height *= yStretch
self.scale = [width, height]
def setAngle(self, angle):
self.angle = angle
def setRect(self, rect):
"""
@param rect: The surface rectangle, this is used for cropping the texture
"""
if not rect == self.rect:
self.rect = rect
self.createTex()
def setAlignment(self, alignment):
"""
@param alignment: Adjusts the texture so the coordinate for x-axis placement can either be
on the left side (0), center point (1), or right(2) side of the image
"""
if alignment == CENTER: #center
self.shift = -.5
elif alignment == LEFT: #left
self.shift = 0
elif alignment == RIGHT: #right
self.shift = -1.0
def setVAlignment(self, alignment):
"""
@param valignment: Adjusts the texture so the coordinate for y-axis placement can either be
on the bottom side (0), center point (1), or top(2) side of the image
"""
if alignment == CENTER: #center
self.vshift = -.5
if alignment == TOP: #bottom
self.vshift = 0
elif alignment == BOTTOM: #top
self.vshift = -1.0
def setColor(self, color):
if len(color) == 3:
color = (color[0], color[1], color[2], 1.0)
self.color = color
def draw(self):
with cmgl.PushedSpecificMatrix(GL_TEXTURE):
with cmgl.PushedSpecificMatrix(GL_PROJECTION):
with cmgl.MatrixMode(GL_PROJECTION):
self.context.setProjection()
with cmgl.PushedMatrix():
glLoadIdentity()
glTranslate(self.position[0], self.position[1], 0.0)
glRotatef(-self.angle, 0, 0, 1)
glScalef(self.scale[0], self.scale[1], 1.0)
glScalef(self.pixelSize[0], self.pixelSize[1], 1)
glTranslatef(self.shift, self.vshift, 0)
glColor4f(*self.color)
glEnable(GL_TEXTURE_2D)
self.texture.bind()
cmgl.drawArrays(GL_QUADS,
vertices=ImgDrawing.VTX_ARRAY,
texcoords=self.texArray)
glDisable(GL_TEXTURE_2D)
