fixed canvas switcher bug

svn path=/trunk/matplotlib/; revision=943

API_CHANGES

@@ -25,7 +25,8 @@ API CHANGES in matplotlib-0.72
 
    subs=none now does autosubbing in the tick locator.
 
-   removed BBoxTransformation
+   New subplots that overlap old will delete the old axes.  If you do
+   not want this behavior, use fig.add_subplot or the axes command
 
 API CHANGES in matplotlib-0.71   
 

MANIFEST.in

@@ -1,4 +1,4 @@
-include API_CHANGES CHANGELOG KNOWN_BUGS INSTALL
+include API_CHANGES CHANGELOG KNOWN_BUGS INSTALL NUMARRAY_ISSUES
 include INTERACTIVE TODO
 include Makefile  MANIFEST.in MANIFEST
 include .matplotlibrc

TODO

@@ -642,48 +642,4 @@ ZeroDivisionError: SeparableTransformation::eval_scalars yin interval is zero; c
 
 -- fix contour mappable to work under changes in clim, cmap
 
--- port colorbar, current mappable to API
-
--- add qt / gpl warning
-
--- Nil's xtick labeling bug
-
--- make a fig dict wrapper
-
--- plot items ala gnuplot
-    FileItem, FuncItem, High level plot items
-
--- doc why figimage doesn't respond to nav
-
-- imshow() bug: make a random 1024x1024 array, zoom in hard (to a 10x10
-square).  All displayed area is white.
-
-
--- Tk figure destruction bugs with mayavi.  Already reported.
-
--- run in ipython with  -backend
-
-
-- easy interactive logscaling x/y axes independently. (l->y, L->x)  Button?
-
-- grid on/off toggle (g key), button?
-
-- measuring ruler? (see gnuplot's 'r' hotkey in X11).
-
-- button to add text labels easily anywhere on the plot.  A few drawing
-  buttons as well for simple things? Circle/ellipse, box, arrows, etc.
-
-- toggle log/linear shows strange accumulation of ticks on y axis
-
-    from pylab import *
-    x = arange(-2.00, 10, 0.01)
-    y = exp(-x)
-    plot(x,y)
-    #set(gca(), xscale='log')
-    show()
-
--- DONE pyparsing a performance bottleneck for log ticks
-
--- DONE draw point and draw pixel currently broken for new style markers
-
--- alpha channel in colormaps
+-- make subplot delaxes on other subplots under it.

lib/matplotlib/backend_bases.py

@@ -802,11 +802,19 @@ def destroy(self):
         pass
 
     def key_press(self, event):
+
+        # these bindings happen whether you are over an axes or not
+        #if event.key == 'q':  
+        #    self.destroy() # how cruel to have to destroy oneself!
+        #    return
+
         if event.inaxes is None: return
+
+        # the mouse has to be over an axes to trigger these
         if event.key == 'g':  
             event.inaxes.grid()
             self.canvas.draw()
-        if event.key == 'l':  
+        elif event.key == 'l':  
             event.inaxes.toggle_log_lineary()
             self.canvas.draw()
 

lib/matplotlib/backends/backend_agg.py

@@ -399,3 +399,4 @@ def print_figure(self, filename, dpi=150,
         self.figure.dpi.set(origDPI)
         self.figure.set_facecolor(origfacecolor)
         self.figure.set_edgecolor(origedgecolor)
+        self.figure.set_canvas(self)

lib/matplotlib/backends/backend_fltkagg.py

@@ -220,7 +220,8 @@ def print_figure(self, filename, dpi=150,
 
         agg = self.switch_backends(FigureCanvasAgg)
         agg.print_figure(filename, dpi, facecolor, edgecolor, orientation)
-
+        self.figure.set_canvas(self)
+
     def widget(self):
         return self.canvas
 

lib/matplotlib/backends/backend_gdk.py

@@ -572,3 +572,5 @@ def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
             error_msg('Format "%s" is not supported.\nSupported formats are %s.' %
                       (ext, ', '.join(IMAGE_FORMAT)),
                       parent=self)
+
+        self.figure.set_canvas(self)

lib/matplotlib/backends/backend_gtk.py

@@ -349,7 +349,7 @@ def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
         self.figure.set_facecolor(origfacecolor)
         self.figure.set_edgecolor(origedgecolor)
         self.figure.set_figsize_inches(origWIn, origHIn)
-
+        self.figure.set_canvas(self)
 
 class FigureManagerGTK(FigureManagerBase):
     """

lib/matplotlib/backends/backend_gtkagg.py

@@ -65,6 +65,7 @@ def print_figure(self, filename, dpi=150,
             agg = self.switch_backends(FigureCanvasAgg)
             agg.print_figure(filename, dpi, facecolor, edgecolor, orientation)
 
+        self.figure.set_canvas(self)
 
 
     def configure_event(self, widget, event=None):

lib/matplotlib/backends/backend_ps.py

@@ -283,6 +283,9 @@ def draw_line(self, gc, x0, y0, x1, y1):
 
     def _draw_markers(self, gc, path, x, y, transform):
         """
+        I'm underscore hiding this method from lines.py right now
+        since it is incomplete
+        
         Draw the markers defined by path at each of the positions in x
         and y.  path coordinates are points, x and y coords will be
         transformed by the transform

lib/matplotlib/backends/backend_qtagg.py

@@ -215,6 +215,7 @@ def print_figure(self, filename, dpi=150,
 
         agg = self.switch_backends(FigureCanvasAgg)
         agg.print_figure(filename, dpi, facecolor, edgecolor, orientation)
+        self.figure.set_canvas(self)
 
 class NavigationToolbar2QtAgg(NavigationToolbar2, qt.QToolBar):
     """

lib/matplotlib/backends/backend_tkagg.py

@@ -159,7 +159,7 @@ def print_figure(self, filename, dpi=150,
 
         agg = self.switch_backends(FigureCanvasAgg)
         agg.print_figure(filename, dpi, facecolor, edgecolor, orientation)
-
+        self.figure.set_canvas(self)
 
     def motion_notify_event(self, event):
         x = event.x

lib/matplotlib/backends/backend_wx.py

@@ -896,6 +896,7 @@ def print_figure(self, filename, dpi=150,
 
             ps.print_figure(filename, 72, facecolor, edgecolor)
             self.figure.dpi.set(origDPI)
+            self.figure.set_canvas(self)
             return
         elif ext.find('svg')>=0:
             # enable svg save from WX backend only import this if we
@@ -907,7 +908,8 @@ def print_figure(self, filename, dpi=150,
             svg = self.switch_backends(FigureCanvasSVG)
             svg.figure.dpi.set(72)
             svg.print_figure(filename, 72, facecolor, edgecolor)
-            self.figure.dpi.set(origDPI)                                       
+            self.figure.dpi.set(origDPI)
+            self.figure.set_canvas(self)
             return
 
         if not self._isRealized:

lib/matplotlib/backends/backend_wxagg.py

@@ -67,6 +67,7 @@ def print_figure(self, filename, dpi=150, facecolor='w',
         """
         agg = self.switch_backends(FigureCanvasAgg)
         agg.print_figure(filename, dpi, facecolor, edgecolor, orientation)
+        self.figure.set_canvas(self)
 
     def _get_imagesave_wildcards(self):
         'return the wildcard string for the filesave dialog'

lib/matplotlib/pylab.py

@@ -761,7 +761,8 @@ def figlegend(handles, labels, loc, **kwargs):
     return l
 
 def savefig(*args, **kwargs):    
-    try: ret =  gcf().savefig(*args, **kwargs)
+    fig = gcf()
+    try: ret =  fig.savefig(*args, **kwargs)
     except RuntimeError, msg:
         msg = raise_msg_to_str(msg)
         error_msg(msg)
@@ -1266,10 +1267,28 @@ def subplot(*args, **kwargs):
 
     See help(axes) for additional information on axes and subplot
     keyword arguments.
+
+    New subplots that overlap old will delete the old axes.  If you do
+    not want this behavior, use fig.add_subplot or the axes command.  Eg
+
+      from pylab import *
+      plot([1,2,3])  # implicitly creates subplot(111)
+      subplot(211)   # overlaps, subplot(111) is killed
+      plot(rand(12), rand(12))
+
     """
 
     try:
-        a = gcf().add_subplot(*args, **kwargs)        
+        fig = gcf()
+        a = fig.add_subplot(*args, **kwargs)        
+        bbox = a.bbox
+        byebye = []
+        for other in fig.axes:
+            if other==a: continue
+            if bbox.overlaps(other.bbox):
+                byebye.append(other)
+        for ax in byebye: delaxes(ax)
+
     except ValueError, msg:
         msg = raise_msg_to_str(msg)
         error_msg(msg)