bug report 2214: fix for "Graphviz reports cause GRAMPS to hang for long periods of time"
svn: r10797
This commit is contained in:
Stéphane Charette
parent
e2ac6cd282
commit
da98881140
@ -28,6 +28,8 @@
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import os
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from cStringIO import StringIO
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import tempfile
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import thread
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import threading
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from types import ClassType, InstanceType
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from gettext import gettext as _
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@ -218,7 +220,54 @@ class GVDocBase(BaseDoc.BaseDoc, BaseDoc.GVDoc):
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self.write( ' fontsize="%d";\n' % self.notesize )
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self.write( '}\n\n' )
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def animate_progress_bar(self):
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"""
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The progress bar wont animate unless it is pulsed,
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so a timer is created to regularly call this method.
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"""
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self.progress.pbar.pulse()
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# Schedule the next pulse
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self.progress_timer = threading.Timer(1.0, self.animate_progress_bar)
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self.progress_timer.start()
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def generate_output_file_from_dot_file(self, dotcommand, mimetype):
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"""
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We now have the entire content of the .dot file. Last thing
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we need to do is to call dot (part of the Graphviz package)
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to generate the .png, .gif, ...etc... output file. Note that
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this can take a relatively long time for large or complicated
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graphs, so this method is called on a 2nd thread to prevent
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GRAMPS from appearing to have "hung".
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"""
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self.progress = Utils.ProgressMeter(_('Processing File'), '')
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self.progress.set_pass(self._filename, 10)
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self.progress.pbar.set_pulse_step(0.1)
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# Start a timer to ensure the progress bar is animated
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self.animate_progress_bar()
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# Create a temporary dot file
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(handle, tmp_dot) = tempfile.mkstemp(".dot")
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dotfile = os.fdopen(handle, "w")
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dotfile.write(self._dot.getvalue())
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dotfile.close()
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# Use the temporary dot file to generate the final output file
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os.system(dotcommand % (self._filename, tmp_dot))
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# Delete the temporary dot file
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os.remove(tmp_dot)
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if mimetype and self.print_req:
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app = Mime.get_application(mimetype)
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Utils.launch(app[0], self._filename)
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self.progress_timer.cancel()
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self.progress.close()
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def add_node(self, node_id, label, shape="", color="",
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style="", fillcolor="", url="", htmloutput=False):
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"""
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@ -354,21 +403,9 @@ class GVPsDoc(GVDocBase):
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if self._filename[-3:] != ".ps":
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self._filename += ".ps"
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# Create a temporary dot file
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(handle, tmp_dot) = tempfile.mkstemp(".dot" )
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dotfile = os.fdopen(handle,"w")
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dotfile.write(self._dot.getvalue())
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dotfile.close()
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# Generate the PS file.
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os.system( 'dot -Tps2 -o"%s" "%s"' % (self._filename, tmp_dot) )
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# Delete the temporary dot file
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os.remove(tmp_dot)
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if self.print_req:
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app = Mime.get_application("application/postscript")
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Utils.launch(app[0], self._filename)
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thread.start_new_thread(
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self.generate_output_file_from_dot_file,
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('dot -Tps2 -o"%s" "%s"', "application/postscript"))
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#-------------------------------------------------------------------------------
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#
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@ -393,21 +430,9 @@ class GVSvgDoc(GVDocBase):
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if self._filename[-4:] != ".svg":
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self._filename += ".svg"
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# Create a temporary dot file
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(handle, tmp_dot) = tempfile.mkstemp(".dot" )
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dotfile = os.fdopen(handle,"w")
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dotfile.write(self._dot.getvalue())
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dotfile.close()
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# Generate the SVG file.
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os.system( 'dot -Tsvg -o"%s" "%s"' % (self._filename, tmp_dot) )
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# Delete the temporary dot file
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os.remove(tmp_dot)
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if self.print_req:
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app = Mime.get_application("image/svg")
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Utils.launch(app[0], self._filename)
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thread.start_new_thread(
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self.generate_output_file_from_dot_file,
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('dot -Tsvg -o"%s" "%s"', "image/svg"))
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#-------------------------------------------------------------------------------
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#
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@ -432,21 +457,9 @@ class GVSvgzDoc(GVDocBase):
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if self._filename[-5:] != ".svgz":
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self._filename += ".svgz"
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# Create a temporary dot file
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(handle, tmp_dot) = tempfile.mkstemp(".dot" )
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dotfile = os.fdopen(handle,"w")
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dotfile.write(self._dot.getvalue())
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dotfile.close()
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# Generate the SVGZ file.
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os.system( 'dot -Tsvgz -o"%s" "%s"' % (self._filename, tmp_dot) )
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# Delete the temporary dot file
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os.remove(tmp_dot)
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if self.print_req:
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app = Mime.get_application("image/svgz")
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Utils.launch(app[0], self._filename)
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thread.start_new_thread(
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self.generate_output_file_from_dot_file,
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('dot -Tsvgz -o"%s" "%s"', "image/svgz"))
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#-------------------------------------------------------------------------------
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#
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@ -466,27 +479,15 @@ class GVPngDoc(GVDocBase):
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def close(self):
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""" Implements GVDocBase.close() """
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GVDocBase.close(self)
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# Make sure the extension is correct
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if self._filename[-4:] != ".png":
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self._filename += ".png"
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# Create a temporary dot file
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(handle, tmp_dot) = tempfile.mkstemp(".dot" )
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dotfile = os.fdopen(handle,"w")
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dotfile.write(self._dot.getvalue())
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dotfile.close()
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thread.start_new_thread(
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self.generate_output_file_from_dot_file,
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('dot -Tpng -o"%s" "%s"', "image/png"))
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# Generate the PNG file.
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os.system( 'dot -Tpng -o"%s" "%s"' % (self._filename, tmp_dot) )
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# Delete the temporary dot file
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os.remove(tmp_dot)
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if self.print_req:
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app = Mime.get_application("image/png")
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Utils.launch(app[0], self._filename)
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#-------------------------------------------------------------------------------
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#
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# GVJpegDoc
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@ -510,22 +511,10 @@ class GVJpegDoc(GVDocBase):
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if self._filename[-4:] != ".jpg":
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self._filename += ".jpg"
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# Create a temporary dot file
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(handle, tmp_dot) = tempfile.mkstemp(".dot" )
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dotfile = os.fdopen(handle,"w")
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dotfile.write(self._dot.getvalue())
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dotfile.close()
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thread.start_new_thread(
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self.generate_output_file_from_dot_file,
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('dot -Tjpg -o"%s" "%s"', "image/jpeg"))
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# Generate the JPEG file.
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os.system( 'dot -Tjpg -o"%s" "%s"' % (self._filename, tmp_dot) )
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# Delete the temporary dot file
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os.remove(tmp_dot)
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if self.print_req:
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app = Mime.get_application("image/jpeg")
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Utils.launch(app[0], self._filename)
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#-------------------------------------------------------------------------------
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#
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# GVGifDoc
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@ -549,21 +538,9 @@ class GVGifDoc(GVDocBase):
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if self._filename[-4:] != ".gif":
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self._filename += ".gif"
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# Create a temporary dot file
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(handle, tmp_dot) = tempfile.mkstemp(".dot" )
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dotfile = os.fdopen(handle,"w")
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dotfile.write(self._dot.getvalue())
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dotfile.close()
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# Generate the GIF file.
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os.system( 'dot -Tgif -o"%s" "%s"' % (self._filename, tmp_dot) )
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# Delete the temporary dot file
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os.remove(tmp_dot)
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if self.print_req:
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app = Mime.get_application("image/gif")
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Utils.launch(app[0], self._filename)
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thread.start_new_thread(
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self.generate_output_file_from_dot_file,
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('dot -Tgif -o"%s" "%s"', "image/gif"))
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#-------------------------------------------------------------------------------
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#
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@ -591,23 +568,10 @@ class GVPdfGvDoc(GVDocBase):
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if self._filename[-4:] != ".pdf":
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self._filename += ".pdf"
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# Create a temporary dot file
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(handle, tmp_dot) = tempfile.mkstemp(".dot" )
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dotfile = os.fdopen(handle,"w")
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dotfile.write(self._dot.getvalue())
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dotfile.close()
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thread.start_new_thread(
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self.generate_output_file_from_dot_file,
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('dot -Tpdf -o"%s" "%s"', "application/pdf"))
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# Generate the PDF file.
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os.system( 'dot -Tpdf -o"%s" "%s"' % (self._filename, tmp_dot) )
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# Delete the temporary dot file
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os.remove(tmp_dot)
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if self.print_req:
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app = Mime.get_application("application/pdf")
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Utils.launch(app[0], self._filename)
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#-------------------------------------------------------------------------------
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#
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# GVPdfGsDoc
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@ -620,34 +584,31 @@ class GVPdfGsDoc(GVDocBase):
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# GV documentation says dpi is only for image formats.
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options.menu.get_option_by_name('dpi').set_value(72)
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GVDocBase.__init__(self, options, paper_style)
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def close(self):
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""" Implements GVDocBase.close() """
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GVDocBase.close(self)
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# First step is to create a temporary .ps file
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original_name = self._filename
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if self._filename[-3:] != ".ps":
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self._filename += ".ps"
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self.generate_output_file_from_dot_file(
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'dot -Tps -o"%s" "%s"', None)
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tmp_ps = self._filename
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# Make sure the extension is correct
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self._filename = original_name
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if self._filename[-4:] != ".pdf":
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self._filename += ".pdf"
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# Create a temporary dot file
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(handle, tmp_dot) = tempfile.mkstemp(".dot" )
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dotfile = os.fdopen(handle,"w")
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dotfile.write(self._dot.getvalue())
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dotfile.close()
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# Create a temporary PostScript file
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(handle, tmp_ps) = tempfile.mkstemp(".ps" )
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os.close( handle )
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# Generate PostScript using dot
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command = 'dot -Tps -o"%s" "%s"' % ( tmp_ps, tmp_dot )
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os.system(command)
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# Add .5 to remove rounding errors.
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paper_size = self._paper.get_size()
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width_pt = int( (paper_size.get_width_inches() * 72) + 0.5 )
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height_pt = int( (paper_size.get_height_inches() * 72) + 0.5 )
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# Convert to PDF using ghostscript
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command = '%s -q -sDEVICE=pdfwrite -dNOPAUSE -dDEVICEWIDTHPOINTS=%d' \
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' -dDEVICEHEIGHTPOINTS=%d -sOutputFile="%s" "%s" -c quit' \
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@ -655,7 +616,6 @@ class GVPdfGsDoc(GVDocBase):
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os.system(command)
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os.remove(tmp_ps)
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os.remove(tmp_dot)
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if self.print_req:
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app = Mime.get_application("application/pdf")
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