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jdh2358jdh2358
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added gtkgd ext and gd win32 files
svn path=/trunk/matplotlib/; revision=125
1 parent 93f79b4 commit a9672ea

6 files changed

Lines changed: 181 additions & 4 deletions

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‎MANIFEST‎

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@@ -155,4 +155,5 @@ matplotlib/backends/backend_gtkgd.py
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matplotlib/backends/backend_ps.py
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matplotlib/backends/backend_template.py
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matplotlib/backends/backend_wx.py
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src/_matplotlibc.c
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test/test.py

‎MANIFEST.in‎

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include API_CHANGES CHANGELOG KNOWN_BUGS GOALS INSTALL INTERACTIVE LICENSE Makefile TODO MANIFEST.in
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include LICENSE API_CHANGES CHANGELOG KNOWN_BUGS GOALS INSTALL
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include INTERACTIVE TODO
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include Makefile MANIFEST.in MANIFEST
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include __init__.py setupext.py setup.py
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include examples/README
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include examples/*.py
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include examples/*.glade
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include examples/data/*
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include fonts/afm/*
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include fonts/ttf/*
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include images/*
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include test/*.py
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include test/README
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‎examples/simple_plot.py‎

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from matplotlib.backends.backend_gtk import show_xvfb
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from matplotlib.matlab import *
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t = arange(0.0, 1.0, 0.002)
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#grid(True)
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#set(gca(), 'xticks', (0,.2,.7))
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#savefig('test2')
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show()
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#savefig('test2', dpi=600)
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show_xvfb()

‎setup.py‎

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import sys,os
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import glob
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from setupext import build_gtkgd
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data = []
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data.extend(glob.glob('fonts/afm/*.afm'))
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data.extend(glob.glob('fonts/ttf/*.ttf'))
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data.extend(glob.glob('images/*.xpm'))
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ext_modules = []
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if 0: # how do I add '--with-gtkgd' flag checking?
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build_gtkgd(ext_modules)
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setup(name="matplotlib",
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version= '0.50e',
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version= '0.50f',
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description = "Matlab style python plotting package",
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author = "John D. Hunter",
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author_email="[email protected]",
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""",
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packages=['matplotlib', 'matplotlib/backends'],
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platforms='any',
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ext_modules = ext_modules,
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data_files=[('share/matplotlib', data)],
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)

‎setupext.py‎

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"""
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Some helper functions for building the C extensions
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"""
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import sys, os
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from distutils.core import Extension
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def getoutput(s):
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'get the output of a system command'
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return os.popen(s).read().strip()
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def add_pygtk_flags(module):
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'Add the module flags to build extensions which use gtk'
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pygtkIncludes = getoutput('pkg-config --cflags-only-I pygtk-2.0').split()
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gtkIncludes = getoutput('pkg-config --cflags-only-I gtk+-2.0').split()
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includes = pygtkIncludes + gtkIncludes
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include_dirs = [include[2:] for include in includes]
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pygtkLinker = getoutput('pkg-config --libs pygtk-2.0').split()
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gtkLinker = getoutput('pkg-config --libs gtk+-2.0').split()
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linkerFlags = pygtkLinker + gtkLinker
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libraries = [flag[2:] for flag in linkerFlags if flag.startswith('-l')]
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library_dirs = [flag[2:] for dir in linkerFlags if flag.startswith('-L')]
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extra_link_args = [flag for flag in linkerFlags if not
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(flag.startswith('-l') or flag.startswith('-L'))]
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module.include_dirs.extend(include_dirs)
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module.libraries.extend(libraries)
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module.library_dirs.extend(library_dirs)
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module.extra_link_args.extend(extra_link_args)
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def add_gd_flags(module):
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'Add the module flags to build extensions which use gd'
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module.libraries.append('gd')
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def build_gtkgd(ext_modules):
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module = Extension('matplotlib._gtkgd',
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['src/_gtkgd.c'],
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library_dirs = [],
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libraries = [],
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include_dirs = [],
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extra_link_args = [],
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)
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add_pygtk_flags(module)
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add_gd_flags(module)
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ext_modules.append(module)

‎src/_gtkgd.c‎

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/* Helper functions for converting a gd image to a gtk drawable
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efficiently
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*/
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#include <Python.h>
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#include <gd.h>
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#include <pygobject.h>
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#include <pygtk/pygtk.h>
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#include <string.h>
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#include <errno.h>
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#include <stdio.h>
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static PyObject *ErrorObject;
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static PyTypeObject *PyGObject_Type=NULL;
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typedef struct i_o {
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PyObject_HEAD
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gdImagePtr imagedata;
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int multiplier_x,origin_x;
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int multiplier_y,origin_y;
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struct i_o *current_brush;
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struct i_o *current_tile;
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} imageobject;
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static PyObject *
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_gd_to_gtk_drawable(PyObject *self, PyObject *args) {
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int x1, y1, x2, y2, w, h, i, j, c, r, g, b;
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PyObject *im = NULL;
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imageobject *imo = NULL;
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gdImagePtr imData;
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PyGObject *py_drawable = NULL;
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GdkDrawable *drawable = NULL;
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GdkGC* gc = NULL;
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GdkColor color;
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GdkColormap* cmap = NULL;
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if (!PyArg_ParseTuple(args, "O!O", PyGObject_Type, &py_drawable, &im))
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return NULL;
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drawable = GDK_DRAWABLE(py_drawable->obj);
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gc = gdk_gc_new(drawable);
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cmap = gdk_window_get_colormap(drawable);
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imo = PyObject_GetAttrString(im, "_image");
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imData = imo->imagedata;
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w = gdImageSX(imData);
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h = gdImageSY(imData);
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//printf("cmap size: %u\n", cmap->size);
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for (i=0; i<w; ++i)
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for (j=0; j<h; ++j) {
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c = gdImageGetPixel(imData, i, j);
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color.red = 256*imData->red[c];
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color.green = 256*imData->green[c];
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color.blue = 256*imData->blue[c];
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gdk_colormap_alloc_color(cmap, &color, 1, 1);
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gdk_gc_set_foreground(gc, &color);
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//what should I compare color.pixel against here for failure
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gdk_draw_point(drawable, gc, i, j);
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}
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gdImageGetClip(imo->imagedata, &x1, &y1, &x2, &y2);
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return Py_BuildValue("(ii)(ii)", x1, y1, x2, y2);
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}
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static struct PyMethodDef _gtkgd_methods[] = {
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{"gd_to_gtk_drawable", (PyCFunction)_gd_to_gtk_drawable, METH_VARARGS,
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"Draw to a gtk drawable from a gd image."},
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{NULL, NULL} /* sentinel */
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};
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DL_EXPORT(void) init_gtkgd(void)
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{
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PyObject *module, *d;
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init_pygobject();
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init_pygtk();
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/* Create the module and add the functions */
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Py_InitModule("_gtkgd", _gtkgd_methods);
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module = PyImport_ImportModule("gobject");
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if (module) {
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PyGObject_Type =
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(PyTypeObject*)PyObject_GetAttrString(module, "GObject");
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Py_DECREF(module);
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}
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/* Add some symbolic constants to the module */
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d = PyModule_GetDict(module);
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ErrorObject = PyString_FromString("_gtkgd.error");
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PyDict_SetItemString(d, "error", ErrorObject);
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/* Check for errors */
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if (PyErr_Occurred())
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Py_FatalError("can't initialize module _gtkgd");
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}

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