added bgra32 converion buffer to image

jdh2358 · jdh2358 · commit 6dd270a99f4b · 2007-01-11T15:54:25.000Z
svn path=/trunk/matplotlib/; revision=2976
diff --git a/CHANGELOG b/CHANGELOG
@@ -1,3 +1,8 @@
+2007-01-10 Added "Subplot.label_outer" method.  It will set the
+           visibility of the ticklabels so that yticklabels are only
+           visible in the first column and xticklabels are only
+           visible in the last row - JDH
+
 2007-01-02 Added additional kwarg documentation - JDH
 
 2006-12-28 Improved error message for nonpositive input to log
diff --git a/lib/matplotlib/axes.py b/lib/matplotlib/axes.py
@@ -4769,6 +4769,20 @@ def is_last_row(self):
     def is_last_col(self):
         return self.colNum==self.numCols-1
 
+    def label_outer(self):
+        """
+        set the visible property on ticklabels so xticklabels are
+        visible only if the subplot is in the last row and yticklabels
+        are visible only if the subplot is in the first column
+        """
+        lastrow = self.is_last_row()
+        firstcol = self.is_first_col()
+        for label in self.get_xticklabels():
+            label.set_visible(lastrow)
+            
+        for label in self.get_yticklabels():
+            label.set_visible(firstcol)
+        
 class Subplot(SubplotBase, Axes):
     """
     Emulate matlab's(TM) subplot command, creating axes with
diff --git a/src/_image.cpp b/src/_image.cpp
@@ -252,6 +252,40 @@ Image::buffer_argb32(const Py::Tuple& args) {
 }
 
 
+char Image::buffer_bgra32__doc__[] =
+"buffer = buffer_bgra32()"
+"\n"
+"Return the image buffer as agbr32\n"
+;
+Py::Object
+Image::buffer_bgra32(const Py::Tuple& args) {
+  //"Return the image object as bgra32";
+
+  _VERBOSE("RendererAgg::buffer_bgra32");
+
+  args.verify_length(0);
+
+  int row_len = colsOut * 4;
+
+  unsigned char* buf_tmp = new unsigned char[row_len * rowsOut];
+  if (buf_tmp ==NULL)
+    throw Py::MemoryError("RendererAgg::buffer_bgra32 could not allocate memory");
+
+  agg::rendering_buffer rtmp;
+  rtmp.attach(buf_tmp, colsOut, rowsOut, row_len);
+
+  agg::color_conv(&rtmp, rbufOut, agg::color_conv_rgba32_to_bgra32());
+
+  //todo: how to do this with native CXX
+  //PyObject* o = Py_BuildValue("s#", buf_tmp, row_len * rowsOut);
+  PyObject* o = Py_BuildValue("lls#", rowsOut, colsOut,
+			      buf_tmp, row_len * rowsOut);
+  delete [] buf_tmp;
+  return Py::asObject(o);
+
+
+}
+
 char Image::buffer_rgba__doc__[] =
 "buffer = buffer_rgba()"
 "\n"
@@ -752,6 +786,7 @@ Image::init_type() {
   add_varargs_method( "apply_translation", &Image::apply_translation, Image::apply_translation__doc__);
   add_keyword_method( "as_rgba_str", &Image::as_rgba_str, Image::as_rgba_str__doc__);
   add_varargs_method( "buffer_argb32", &Image::buffer_argb32, Image::buffer_argb32__doc__);
+  add_varargs_method( "buffer_bgra32", &Image::buffer_bgra32, Image::buffer_bgra32__doc__);
   add_varargs_method( "buffer_rgba", &Image::buffer_rgba, Image::buffer_rgba__doc__);
   add_varargs_method( "get_aspect", &Image::get_aspect, Image::get_aspect__doc__);
   add_varargs_method( "get_interpolation", &Image::get_interpolation, Image::get_interpolation__doc__);
diff --git a/src/_image.h b/src/_image.h
@@ -28,6 +28,7 @@ class Image : public Py::PythonExtension<Image> {
   Py::Object apply_translation(const Py::Tuple& args);
   Py::Object as_rgba_str(const Py::Tuple& args, const Py::Dict& kwargs);
   Py::Object buffer_argb32(const Py::Tuple& args);
+  Py::Object buffer_bgra32(const Py::Tuple& args);
   Py::Object buffer_rgba(const Py::Tuple& args);
   Py::Object reset_matrix(const Py::Tuple& args);
   Py::Object get_matrix(const Py::Tuple& args);
@@ -87,6 +88,7 @@ class Image : public Py::PythonExtension<Image> {
   static char apply_translation__doc__[];
   static char as_rgba_str__doc__[];
   static char buffer_argb32__doc__[];
+  static char buffer_bgra32__doc__[];
   static char buffer_rgba__doc__[];
   static char reset_matrix__doc__[];
   static char get_matrix__doc__[];
