示例#1
0
文件: Image.py 项目: vemel/fofix
    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()
示例#2
0
    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()
示例#3
0
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)
示例#4
0
文件: Image.py 项目: vemel/fofix
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)