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Commit bcb98e4

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author
Steve Chaplin
committed
SC 03/11/2004
svn path=/trunk/matplotlib/; revision=654
1 parent d47ca90 commit bcb98e4

3 files changed

Lines changed: 52 additions & 63 deletions

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‎lib/matplotlib/backends/backend_gtk.py‎

Lines changed: 39 additions & 36 deletions
Original file line numberDiff line numberDiff line change
@@ -741,17 +741,16 @@ def configure_event(self, widget, event):
741741
if w==1 or h==1: return # empty fig
742742

743743
# compute desired figure size in inches
744-
dpival = self.figure.dpi.get()
745-
winch = w/dpival
746-
hinch = h/dpival
744+
dpi = self.figure.dpi.get()
745+
winch = w / dpi
746+
hinch = h / dpi
747747
self.figure.set_figsize_inches(winch, hinch)
748748

749749
self._new_pixmap = True
750750
return True
751751

752752

753753
def draw(self):
754-
#if self._doplot:
755754
self._new_pixmap = True
756755
self.expose_event(self, None)
757756

@@ -789,65 +788,69 @@ def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
789788
ext = ext[1:]
790789
if ext == '':
791790
ext = IMAGE_FORMAT_DEFAULT
792-
filename = filename + '.' + ext
793-
794-
if self.flags() & gtk.REALIZED == 0:
795-
gtk.DrawingArea.realize(self) # for self.window(for pixmap) and figure sizing?
791+
filename = filename + '.' + ext
796792

797793
# save figure settings
798794
origDPI = self.figure.dpi.get()
799795
origfacecolor = self.figure.get_facecolor()
800796
origedgecolor = self.figure.get_edgecolor()
801-
origW, origH = int (self.figure.bbox.width()), int (self.figure.bbox.height())
797+
origWIn, origHIn = self.figure.get_size_inches()
798+
799+
if self.flags() & gtk.REALIZED == 0:
800+
# for self.window(for pixmap) and has a side effect of altering figure width,height
801+
gtk.DrawingArea.realize(self)
802802

803803
self.figure.dpi.set(dpi)
804804
self.figure.set_facecolor(facecolor)
805805
self.figure.set_edgecolor(edgecolor)
806806

807807
ext = ext.lower()
808-
if ext in ('eps', 'ps', 'svg',):
808+
if ext in ('jpg', 'png'): # native printing
809+
width, height = self.figure.get_width_height()
810+
width, height = int(width), int(height)
811+
pixmap = gtk.gdk.Pixmap (self.window, width, height)
812+
renderer = RendererGTK(self, pixmap, width, height,
813+
self.figure.dpi)
814+
815+
self.figure.draw (renderer)
816+
gdk_pixmap_save (pixmap, filename, ext, width, height)
817+
818+
elif ext in ('eps', 'ps', 'svg',): # print through other backends
809819
if ext in ('svg',):
810820
from backend_svg import FigureCanvasSVG as FigureCanvas
811821
else:
812822
from backend_ps import FigureCanvasPS as FigureCanvas
813823
fc = self.switch_backends(FigureCanvas)
814824
fc.print_figure(filename, dpi, facecolor, edgecolor, orientation)
815825

816-
elif ext in ('jpg', 'png'):
817-
l,b,width, height = self.figure.bbox.get_bounds()
818-
width, height = int(width), int(height)
819-
pixmap = gtk.gdk.Pixmap (self.window, width, height)
820-
renderer = RendererGTK(self, pixmap, width, height,
821-
self.figure.dpi)
822-
823-
self.figure.draw (renderer)
824-
825-
pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, 0, 8,
826-
width, height)
827-
pixbuf.get_from_drawable(pixmap, self.window.get_colormap(),
828-
0, 0, 0, 0, width, height)
829-
830-
# pixbuf.save() only recognises this name
831-
if ext == 'jpg': ext = 'jpeg'
832-
try: pixbuf.save(filename, ext)
833-
except gobject.GError, msg:
834-
msg = raise_msg_to_str(msg)
835-
error_msg('Could not save figure to %s\n\n%s' % (
836-
filename, msg))
837826
else:
838827
error_msg('Format "%s" is not supported.\nSupported formats are %s.' %
839828
(ext, ', '.join(IMAGE_FORMAT)))
840829

841830
# restore figure settings
831+
self.figure.dpi.set(origDPI)
842832
self.figure.set_facecolor(origfacecolor)
843833
self.figure.set_edgecolor(origedgecolor)
844-
self.figure.dpi.set(origDPI)
845-
self.figure.set_figsize_inches(origW/origDPI, origH/origDPI)
834+
self.figure.set_figsize_inches(origWIn, origHIn)
846835

847836

848-
#def set_do_plot(self, b):
849-
# 'True if you want to render to screen, False is hardcopy only'
850-
# self._doplot = b
837+
def gdk_pixmap_save (pixmap, filename, ext, width, height):
838+
"""Save a gdk.Pixmap as a png or jpg file.
839+
Can be called by other gtk backends after they have rendered to a pixmap.
840+
"""
841+
# jpg colors don't match the display very well, png colors match better
842+
pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, 0, 8,
843+
width, height)
844+
pixbuf.get_from_drawable(pixmap, pixmap.get_colormap(),
845+
0, 0, 0, 0, width, height)
846+
847+
# pixbuf.save() recognises 'jpeg' not 'jpg'
848+
if ext == 'jpg': ext = 'jpeg'
849+
try: pixbuf.save(filename, ext)
850+
except gobject.GError, msg:
851+
msg = raise_msg_to_str(msg)
852+
error_msg('Could not save figure to %s\n\n%s' % (
853+
filename, msg))
851854

852855

853856
class FigureManagerGTK(FigureManagerBase):

‎lib/matplotlib/backends/backend_gtkcairo.py‎

Lines changed: 5 additions & 23 deletions
Original file line numberDiff line numberDiff line change
@@ -15,7 +15,7 @@ def _fn_name(): return sys._getframe(1).f_code.co_name
1515
IMAGE_FORMAT_DEFAULT, print_figure_fn
1616
from backend_gtk import gtk, FigureManagerGTK, FigureCanvasGTK, show, \
1717
draw_if_interactive, error_msg, NavigationToolbar, backend_version, \
18-
raise_msg_to_str
18+
raise_msg_to_str, gdk_pixmap_save
1919

2020
import gobject
2121

@@ -77,10 +77,6 @@ def expose_event(self, widget, event):
7777
matrix = cairo.Matrix ()
7878
renderer = RendererCairo (surface, matrix, width, height, self.figure.dpi)
7979

80-
#gc = renderer.new_gc()
81-
#gc.ctx.set_rgb_color(1,0,0)
82-
#renderer.draw_polygon(gc,(1,0,0),((0,0), (width,0), (width, height), (0,height)))
83-
8480
self.figure.draw (renderer)
8581

8682
self.window.set_back_pixmap (self._pixmap, False)
@@ -101,49 +97,35 @@ def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
10197

10298
ext = ext.lower()
10399
if ext in ('jpg'): # backend_gtk / gdk
104-
105100
if self.flags() & gtk.REALIZED == 0:
106101
gtk.DrawingArea.realize(self) # for self.window and figure sizing
107102

108103
# save figure settings
109104
origDPI = self.figure.dpi.get()
110105
origfacecolor = self.figure.get_facecolor()
111106
origedgecolor = self.figure.get_edgecolor()
112-
origW, origH = self.window.get_size()
107+
origWIn, origHIn = self.figure.get_size_inches()
113108

114109
self.figure.dpi.set(dpi)
115110
self.figure.set_facecolor(facecolor)
116111
self.figure.set_edgecolor(edgecolor)
117112

118113
width, height = self.figure.get_width_height()
119-
# l,b, width, height = self.figure.bbox.get_bounds()
120114
width, height = int(width), int(height)
121115

116+
# render using Cairo, save file using gtk.gdk
122117
pixmap = gtk.gdk.Pixmap (self.window, width, height)
123-
124-
# Cairo specific part (next 3 lines)
125118
ctx = cairo.Context()
126119
surface = cairo.gtk.surface_create_for_drawable (pixmap)
127120
renderer = RendererCairo (surface, ctx.matrix, width, height, self.figure.dpi)
128-
129121
self.figure.draw (renderer)
130-
131-
pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, 0, 8,
132-
width, height)
133-
pixbuf.get_from_drawable(pixmap, self.window.get_colormap(),
134-
0, 0, 0, 0, width, height)
135-
136-
try: pixbuf.save(filename, 'jpeg') # 'jpeg' not 'jpg' is required
137-
except gobject.GError, msg:
138-
msg = raise_msg_to_str(msg)
139-
error_msg('Could not save figure to %s\n\n%s' % (
140-
filename, msg))
122+
gdk_pixmap_save (pixmap, filename, ext, width, height)
141123

142124
# restore figure settings
143125
self.figure.set_facecolor(origfacecolor)
144126
self.figure.set_edgecolor(origedgecolor)
145127
self.figure.dpi.set(origDPI)
146-
self.figure.set_figsize_inches(origW/origDPI, origH/origDPI)
128+
self.figure.set_figsize_inches(origWIn, origHIn)
147129

148130
elif ext in IMAGE_FORMAT:
149131
#FigureCanvasCairo.print_figure (self, filename, dpi, facecolor, edgecolor,

‎lib/matplotlib/backends/backend_svg.py‎

Lines changed: 8 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -335,13 +335,15 @@ def draw(self):
335335
def print_figure(self, filename, dpi=80,
336336
facecolor='w', edgecolor='w',
337337
orientation='portrait'):
338-
self.figure.dpi.set(72)
339-
width, height = self.figure.get_size_inches()
340-
338+
# save figure settings
339+
origDPI = self.figure.dpi.get()
341340
origfacecolor = self.figure.get_facecolor()
342341
origedgecolor = self.figure.get_edgecolor()
342+
343+
self.figure.dpi.set(72)
343344
self.figure.set_facecolor(facecolor)
344345
self.figure.set_edgecolor(edgecolor)
346+
width, height = self.figure.get_size_inches()
345347

346348
basename, ext = os.path.splitext(filename)
347349
if not len(ext): filename += '.svg'
@@ -356,9 +358,11 @@ def print_figure(self, filename, dpi=80,
356358
self.figure.draw(renderer)
357359
renderer.finish()
358360

361+
# restore figure settings
362+
self.figure.dpi.set(origDPI)
359363
self.figure.set_facecolor(origfacecolor)
360364
self.figure.set_edgecolor(origedgecolor)
361-
365+
362366
try: fh = file(filename, 'w')
363367
except IOError:
364368
error_msg_svg('Could not open %s for writing' % filename)

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