FM / backends

/usr/lib64/python2.6/site-packages/matplotlib/backends/

/usr/lib64/python2.6/site-packages/matplotlib/backends

Name	Size	Mode	Actions
Matplotlib.nib/	-	0755	rm
backend_agg.py	13037	0644	edit dl rm
backend_agg.pyc	14578	0644	edit dl rm
backend_agg.pyo	13367	0644	edit dl rm
backend_cairo.py	16493	0644	edit dl rm
backend_cairo.pyc	18270	0644	edit dl rm
backend_cairo.pyo	18270	0644	edit dl rm
backend_cocoaagg.py	8988	0644	edit dl rm
backend_cocoaagg.pyc	11930	0644	edit dl rm
backend_cocoaagg.pyo	11930	0644	edit dl rm
backend_emf.py	22336	0644	edit dl rm
backend_emf.pyc	25220	0644	edit dl rm
backend_emf.pyo	25220	0644	edit dl rm
backend_fltkagg.py	20852	0644	edit dl rm
backend_fltkagg.pyc	26631	0644	edit dl rm
backend_fltkagg.pyo	26631	0644	edit dl rm
backend_gdk.py	15968	0644	edit dl rm
backend_gdk.pyc	17157	0644	edit dl rm
backend_gdk.pyo	17157	0644	edit dl rm
backend_gtk.py	40707	0644	edit dl rm
backend_gtk.pyc	45101	0644	edit dl rm
backend_gtk.pyo	45101	0644	edit dl rm
backend_gtkagg.py	4134	0644	edit dl rm
backend_gtkagg.pyc	5088	0644	edit dl rm
backend_gtkagg.pyo	5088	0644	edit dl rm
backend_gtkcairo.py	2079	0644	edit dl rm
backend_gtkcairo.pyc	3740	0644	edit dl rm
backend_gtkcairo.pyo	3740	0644	edit dl rm
backend_macosx.py	14644	0644	edit dl rm
backend_macosx.pyc	20536	0644	edit dl rm
backend_macosx.pyo	20439	0644	edit dl rm
backend_mixed.py	5166	0644	edit dl rm
backend_mixed.pyc	4844	0644	edit dl rm
backend_mixed.pyo	4773	0644	edit dl rm
backend_pdf.py	77716	0644	edit dl rm
backend_pdf.pyc	66626	0644	edit dl rm
backend_pdf.pyo	66508	0644	edit dl rm
backend_ps.py	51444	0644	edit dl rm
backend_ps.pyc	48055	0644	edit dl rm
backend_ps.pyo	48055	0644	edit dl rm
backend_qt.py	16846	0644	edit dl rm
backend_qt.pyc	21065	0644	edit dl rm
backend_qt.pyo	21065	0644	edit dl rm
backend_qt4.py	21006	0644	edit dl rm
backend_qt4.pyc	24697	0644	edit dl rm
backend_qt4.pyo	24697	0644	edit dl rm
backend_qt4agg.py	4799	0644	edit dl rm
backend_qt4agg.pyc	5883	0644	edit dl rm
backend_qt4agg.pyo	5883	0644	edit dl rm
backend_qtagg.py	4972	0644	edit dl rm
backend_qtagg.pyc	6014	0644	edit dl rm
backend_qtagg.pyo	6014	0644	edit dl rm
backend_svg.py	25951	0644	edit dl rm
backend_svg.pyc	24476	0644	edit dl rm
backend_svg.pyo	24368	0644	edit dl rm
backend_template.py	8806	0644	edit dl rm
backend_template.pyc	9385	0644	edit dl rm
backend_template.pyo	9385	0644	edit dl rm
backend_wx.py	78921	0644	edit dl rm
backend_wx.pyc	79007	0644	edit dl rm
backend_wx.pyo	78931	0644	edit dl rm
backend_wxagg.py	9099	0644	edit dl rm
backend_wxagg.pyc	9363	0644	edit dl rm
backend_wxagg.pyo	9363	0644	edit dl rm
_backend_agg.so	430792	0775	edit dl rm
_backend_gdk.so	8168	0775	edit dl rm
_gtkagg.so	143816	0775	edit dl rm
__init__.py	2225	0644	edit dl rm
__init__.pyc	2120	0644	edit dl rm
__init__.pyo	2120	0644	edit dl rm

Edit: /usr/lib64/python2.6/site-packages/matplotlib/backends/backend_macosx.py (14644B)

from __future__ import division

import os
import numpy

from matplotlib._pylab_helpers import Gcf
from matplotlib.backend_bases import RendererBase, GraphicsContextBase,\
     FigureManagerBase, FigureCanvasBase, NavigationToolbar2
from matplotlib.cbook import maxdict
from matplotlib.figure import Figure
from matplotlib.path import Path
from matplotlib.mathtext import MathTextParser
from matplotlib.colors import colorConverter

from matplotlib.widgets import SubplotTool

import matplotlib
from matplotlib.backends import _macosx

def show():
    """Show all the figures and enter the Cocoa mainloop.
    This function will not return until all windows are closed or
    the interpreter exits."""
    # Having a Python-level function "show" wrapping the built-in
    # function "show" in the _macosx extension module allows us to
    # to add attributes to "show". This is something ipython does.
    _macosx.show()

class RendererMac(RendererBase):
    """
    The renderer handles drawing/rendering operations. Most of the renderer's
    methods forwards the command to the renderer's graphics context. The
    renderer does not wrap a C object and is written in pure Python.
    """

texd = maxdict(50)  # a cache of tex image rasters

def __init__(self, dpi, width, height):
        RendererBase.__init__(self)
        self.dpi = dpi
        self.width = width
        self.height = height
        self.gc = GraphicsContextMac()
        self.mathtext_parser = MathTextParser('MacOSX')

def set_width_height (self, width, height):
        self.width, self.height = width, height

def draw_path(self, gc, path, transform, rgbFace=None):
        if rgbFace is not None:
            rgbFace = tuple(rgbFace)
        gc.draw_path(path, transform, rgbFace)

def draw_markers(self, gc, marker_path, marker_trans, path, trans, rgbFace=None):
        if rgbFace is not None:
            rgbFace = tuple(rgbFace)
        gc.draw_markers(marker_path, marker_trans, path, trans, rgbFace)

def draw_path_collection(self, *args):
        gc = self.gc
        args = args[:13]
        gc.draw_path_collection(*args)

def draw_quad_mesh(self, *args):
        gc = self.gc
        gc.draw_quad_mesh(*args)

def new_gc(self):
        self.gc.save()
        self.gc.set_hatch(None)
        return self.gc

def draw_image(self, x, y, im, bbox, clippath=None, clippath_trans=None):
        im.flipud_out()
        nrows, ncols, data = im.as_rgba_str()
        self.gc.draw_image(x, y, nrows, ncols, data, bbox, clippath, clippath_trans)
        im.flipud_out()
    
    def draw_tex(self, gc, x, y, s, prop, angle):
        # todo, handle props, angle, origins
        size = prop.get_size_in_points()
        texmanager = self.get_texmanager()
        key = s, size, self.dpi, angle, texmanager.get_font_config()
        im = self.texd.get(key) # Not sure what this does; just copied from backend_agg.py
        if im is None:
            Z = texmanager.get_grey(s, size, self.dpi)
            Z = numpy.array(255.0 - Z * 255.0, numpy.uint8)

gc.draw_mathtext(x, y, angle, Z)

def _draw_mathtext(self, gc, x, y, s, prop, angle):
        ox, oy, width, height, descent, image, used_characters = \
            self.mathtext_parser.parse(s, self.dpi, prop)
        gc.draw_mathtext(x, y, angle, 255 - image.as_array())

def draw_text(self, gc, x, y, s, prop, angle, ismath=False):
        if ismath:
           self._draw_mathtext(gc, x, y, s, prop, angle)
        else:
            family =  prop.get_family()
            weight = prop.get_weight()
            style = prop.get_style()
            points = prop.get_size_in_points()
            size = self.points_to_pixels(points)
            gc.draw_text(x, y, unicode(s), family, size, weight, style, angle)

def get_text_width_height_descent(self, s, prop, ismath):
        if ismath=='TeX':
            # todo: handle props
            texmanager = self.get_texmanager()
            fontsize = prop.get_size_in_points()
            w, h, d = texmanager.get_text_width_height_descent(s, fontsize,
                                                               renderer=self)
            return w, h, d
        if ismath:
            ox, oy, width, height, descent, fonts, used_characters = \
                self.mathtext_parser.parse(s, self.dpi, prop)
            return width, height, descent
        family =  prop.get_family()
        weight = prop.get_weight()
        style = prop.get_style()
        points = prop.get_size_in_points()
        size = self.points_to_pixels(points)
        width, height, descent = self.gc.get_text_width_height_descent(unicode(s), family, size, weight, style)
        return  width, height, 0.0*descent

def flipy(self):
        return False
    
    def points_to_pixels(self, points):
        return points/72.0 * self.dpi

def option_image_nocomposite(self):
        return True

class GraphicsContextMac(_macosx.GraphicsContext, GraphicsContextBase):
    """
    The GraphicsContext wraps a Quartz graphics context. All methods
    are implemented at the C-level in macosx.GraphicsContext. These
    methods set drawing properties such as the line style, fill color,
    etc. The actual drawing is done by the Renderer, which draws into
    the GraphicsContext.
    """
    def __init__(self):
        GraphicsContextBase.__init__(self)
        _macosx.GraphicsContext.__init__(self)

def set_foreground(self, fg, isRGB=False):
        GraphicsContextBase.set_foreground(self, fg, isRGB)
        rgb = self.get_rgb()
        _macosx.GraphicsContext.set_foreground(self, rgb[:3])

def set_graylevel(self, fg):
        GraphicsContextBase.set_graylevel(self, fg)
        _macosx.GraphicsContext.set_graylevel(self, fg)

def set_clip_rectangle(self, box):
        GraphicsContextBase.set_clip_rectangle(self, box)
        if not box: return
        _macosx.GraphicsContext.set_clip_rectangle(self, box.bounds)

def set_clip_path(self, path):
        GraphicsContextBase.set_clip_path(self, path)
        if not path: return
        path = path.get_fully_transformed_path()
        _macosx.GraphicsContext.set_clip_path(self, path)

########################################################################
#    
# The following functions and classes are for pylab and implement
# window/figure managers, etc...
#
########################################################################

def draw_if_interactive():
    """
    For performance reasons, we don't want to redraw the figure after
    each draw command. Instead, we mark the figure as invalid, so that
    it will be redrawn as soon as the event loop resumes via PyOS_InputHook.
    This function should be called after each draw event, even if
    matplotlib is not running interactively.
    """
    figManager =  Gcf.get_active()
    if figManager is not None:
        figManager.canvas.invalidate()

def new_figure_manager(num, *args, **kwargs):
    """
    Create a new figure manager instance
    """
    FigureClass = kwargs.pop('FigureClass', Figure)
    figure = FigureClass(*args, **kwargs)
    canvas = FigureCanvasMac(figure)
    manager = FigureManagerMac(canvas, num)
    return manager

class FigureCanvasMac(_macosx.FigureCanvas, FigureCanvasBase):
    """
    The canvas the figure renders into.  Calls the draw and print fig
    methods, creates the renderers, etc...

Public attribute

figure - A Figure instance

Events such as button presses, mouse movements, and key presses
    are handled in the C code and the base class methods
    button_press_event, button_release_event, motion_notify_event,
    key_press_event, and key_release_event are called from there.
    """

filetypes = FigureCanvasBase.filetypes.copy()
    filetypes['bmp'] = 'Windows bitmap'
    filetypes['jpeg'] = 'JPEG'
    filetypes['jpg'] = 'JPEG'
    filetypes['gif'] = 'Graphics Interchange Format'
    filetypes['tif'] = 'Tagged Image Format File'
    filetypes['tiff'] = 'Tagged Image Format File'

def __init__(self, figure):
        FigureCanvasBase.__init__(self, figure)
        width, height = self.get_width_height()
        self.renderer = RendererMac(figure.dpi, width, height)
        _macosx.FigureCanvas.__init__(self, width, height)

def resize(self, width, height):
        self.renderer.set_width_height(width, height)
        dpi = self.figure.dpi
        width /= dpi
        height /= dpi
        self.figure.set_size_inches(width, height)

def _print_bitmap(self, filename, *args, **kwargs):
        # In backend_bases.py, print_figure changes the dpi of the figure.
        # But since we are essentially redrawing the picture, we need the
        # original dpi. Pick it up from the renderer.
        dpi = kwargs['dpi']
        old_dpi = self.figure.dpi
        self.figure.dpi = self.renderer.dpi
        width, height = self.figure.get_size_inches()
        width, height = width*dpi, height*dpi
        filename = unicode(filename)
        self.write_bitmap(filename, width, height)
        self.figure.dpi = old_dpi

def print_bmp(self, filename, *args, **kwargs):
        self._print_bitmap(filename, *args, **kwargs)

def print_jpg(self, filename, *args, **kwargs):
        self._print_bitmap(filename, *args, **kwargs)

def print_jpeg(self, filename, *args, **kwargs):
        self._print_bitmap(filename, *args, **kwargs)

def print_tif(self, filename, *args, **kwargs):
        self._print_bitmap(filename, *args, **kwargs)

def print_tiff(self, filename, *args, **kwargs):
        self._print_bitmap(filename, *args, **kwargs)

def print_gif(self, filename, *args, **kwargs):
        self._print_bitmap(filename, *args, **kwargs)

def get_default_filetype(self):
        return 'png'

class FigureManagerMac(_macosx.FigureManager, FigureManagerBase):
    """
    Wrap everything up into a window for the pylab interface
    """
    def __init__(self, canvas, num):
        FigureManagerBase.__init__(self, canvas, num)
        title = "Figure %d" % num
        _macosx.FigureManager.__init__(self, canvas, title)
        if matplotlib.rcParams['toolbar']=='classic':
            self.toolbar = NavigationToolbarMac(canvas)
        elif matplotlib.rcParams['toolbar']=='toolbar2':
            self.toolbar = NavigationToolbar2Mac(canvas)
        else:
            self.toolbar = None
        if self.toolbar is not None: 
            self.toolbar.update()

def notify_axes_change(fig):
            'this will be called whenever the current axes is changed'
            if self.toolbar != None: self.toolbar.update()
        self.canvas.figure.add_axobserver(notify_axes_change)

# This is ugly, but this is what tkagg and gtk are doing.
        # It is needed to get ginput() working.
        self.canvas.figure.show = lambda *args: self.show()

def show(self):
        self.canvas.draw()

def close(self):
        Gcf.destroy(self.num)

class NavigationToolbarMac(_macosx.NavigationToolbar):
 
    def __init__(self, canvas):
        self.canvas = canvas
        basedir = os.path.join(matplotlib.rcParams['datapath'], "images")
        images = {}
        for imagename in ("stock_left",
                          "stock_right",
                          "stock_up",
                          "stock_down",
                          "stock_zoom-in",
                          "stock_zoom-out",
                          "stock_save_as"):
            filename = os.path.join(basedir, imagename+".ppm")
            images[imagename] = self._read_ppm_image(filename)
        _macosx.NavigationToolbar.__init__(self, images)
        self.message = None

def _read_ppm_image(self, filename):
        data = ""
        imagefile = open(filename)
        for line in imagefile:
            if "#" in line:
                i = line.index("#")
                line = line[:i] + "\n"
            data += line
        imagefile.close()
        magic, width, height, maxcolor, imagedata = data.split(None, 4)
        width, height = int(width), int(height)
        assert magic=="P6"
        assert len(imagedata)==width*height*3 # 3 colors in RGB
        return (width, height, imagedata)
        
    def panx(self, direction):
        axes = self.canvas.figure.axes
        selected = self.get_active()
        for i in selected:
            axes[i].xaxis.pan(direction)
        self.canvas.invalidate()

def pany(self, direction):
        axes = self.canvas.figure.axes
        selected = self.get_active()
        for i in selected:
            axes[i].yaxis.pan(direction)
        self.canvas.invalidate()

def zoomx(self, direction):
        axes = self.canvas.figure.axes
        selected = self.get_active()
        for i in selected:
            axes[i].xaxis.zoom(direction)
        self.canvas.invalidate()

def zoomy(self, direction):
        axes = self.canvas.figure.axes
        selected = self.get_active()
        for i in selected:
            axes[i].yaxis.zoom(direction)
        self.canvas.invalidate()

def save_figure(self):
        filename = _macosx.choose_save_file('Save the figure')
        if filename is None: # Cancel
            return
        self.canvas.print_figure(filename)

class NavigationToolbar2Mac(_macosx.NavigationToolbar2, NavigationToolbar2):

def __init__(self, canvas):
        NavigationToolbar2.__init__(self, canvas)

def _init_toolbar(self):
        basedir = os.path.join(matplotlib.rcParams['datapath'], "images")
        _macosx.NavigationToolbar2.__init__(self, basedir)

def draw_rubberband(self, event, x0, y0, x1, y1):
        self.canvas.set_rubberband(x0, y0, x1, y1)

def release(self, event):
        self.canvas.remove_rubberband()

def set_cursor(self, cursor):
        _macosx.set_cursor(cursor)

def save_figure(self):
        filename = _macosx.choose_save_file('Save the figure')
        if filename is None: # Cancel
            return
        self.canvas.print_figure(filename)

def prepare_configure_subplots(self):
        toolfig = Figure(figsize=(6,3))
        canvas = FigureCanvasMac(toolfig)
        toolfig.subplots_adjust(top=0.9)
        tool = SubplotTool(self.canvas.figure, toolfig)
        return canvas

def set_message(self, message):
        _macosx.NavigationToolbar2.set_message(self, message.encode('utf-8'))

########################################################################
#    
# Now just provide the standard names that backend.__init__ is expecting
# 
########################################################################

FigureManager = FigureManagerMac

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