Windows fixes (#83)

* os.execv doesn't replace the process on windows

* fix simulate/params crash

* pyinstaller windowed mode breaks things?

* fix output routing for windows

* properly route stderr to inkscape too

* don't print unless there's something to print

* remove last backup version if necessary

* add documentation for Windows build

6 files changed, 44 insertions, 12 deletions

diff --git a/README.md b/README.md
index a57ca697..40cf5c34 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,11 @@
 # ink/stitch: An Inkscape extension for designing machine embroidery patterns
 
+* February 22, 2018: **Windows support added!**
 * February 5, 2018: Portuguese (pt_PT) translation added!  [Want to help translate?](LOCALIZATION.md)
 * January 5, 2018: Default DPI changed to 96, to match Inkscape.
 * January 3, 2018: Project renamed from `inkscape-embroidery` to **ink/stitch**
-* **NEW January 1, 2018:** [video demo of the new live stitch preview feature](https://youtu.be/QY9NcLN3oJM)
-* **NEW December 6, 2017:** [video demo of how to use the extension](https://www.youtube.com/watch?v=qXntE1X1RIw)
+* January 1, 2018: [video demo of the new live stitch preview feature](https://youtu.be/QY9NcLN3oJM)
+* December 6, 2017: [video demo of how to use the extension](https://www.youtube.com/watch?v=qXntE1X1RIw)
 
 ## Introduction
 **Want to design embroidery pattern files (PES, DST, etc) using free, open source software?  Hate all the other options?  Try this one.**
@@ -15,9 +16,19 @@ So I wrote one.
 
 Okay, not really.  I'm pretty terrible at GUIs, but I found this nifty inkscape extension that was created and hacked on by a couple of other folks.  It was pretty rudimentary, but it got the job done, and more importantly, it was super hackable.  I hacked the hell out of it, and at this point **ink/stitch is a viable entry-level machine embroidery design tool**.
 
-## Quick Setup On Ubuntu 14.04 or later (and derivative Linux distributions)
+## Quick Setup On Ubuntu and Windows
 
-Download the [latest release](https://github.com/lexelby/inkstitch/releases/latest), the `inkscape-*.tar.gz` file.  Decompress this archive directly into `~/.config/inkscape/extensions`, for example:
+First, download the right release archive for your platform from the [latest release](https://github.com/lexelby/inkstitch/releases/latest).
+
+* **Linux**: `inkstitch-[VERSION]-Linux-x86_64.tar.gz`
+  * Currently supports most 64-bit Linux systems from the last couple of years.
+  * 32-bit support coming soon.
+* **Windows**: `inkstitch-[VERSION]-win32.zip`
+  * Supports 32-bit and 64-bit Windows
+
+In Inkscape, go to Preferences and look under System.  Next to "User Extensions" is a folder.  Decompress the archive you downloaded directly into this folder.
+
+For example, on Linux:
 
 ```
 $ cd ~/.config/inkscape/extensions
diff --git a/bin/build-dist b/bin/build-dist
index fa933780..8fa4b59f 100755
--- a/bin/build-dist
+++ b/bin/build-dist
@@ -32,7 +32,7 @@ pyinstaller_args+="-p inkscape-0.92.2/share/extensions "
 mkdir -p dist/inkstitch/bin
 for extension in "$@"; do
     if [ "$BUILD" = "windows" ]; then
-        wine c:\\Python\\scripts\\pyinstaller.exe --windowed $pyinstaller_args ${extension}.py
+        wine c:\\Python\\scripts\\pyinstaller.exe $pyinstaller_args ${extension}.py
     else
         # without the LD_LIBRARY_PATH, it seems that pyinstaller can't find all of
         # wxpython's shared libraries
diff --git a/embroider.py b/embroider.py
index 1c65ef4d..dfc7c7c9 100644
--- a/embroider.py
+++ b/embroider.py
@@ -1718,6 +1718,10 @@ class Embroider(inkex.Effect):
 
             if os.path.exists(source):
                 move_if_exists(path, suffix + 1)
+
+                if os.path.exists(dest):
+                    os.remove(dest)
+
                 os.rename(source, dest)
 
         move_if_exists(output_path)
diff --git a/embroider_simulate.py b/embroider_simulate.py
index 5340dda7..d1407249 100644
--- a/embroider_simulate.py
+++ b/embroider_simulate.py
@@ -233,6 +233,9 @@ class EmbroiderySimulator(wx.Frame):
         if self.on_close_hook:
             self.on_close_hook()
 
+        # If we keep a reference here, wx crashes when the process exits.
+        self.canvas = None
+
         self.Destroy()
 
     def stop(self):
diff --git a/messages.po b/messages.po
index c7794f31..ea85b66b 100644
--- a/messages.po
+++ b/messages.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-02-19 20:13-0500\n"
+"POT-Creation-Date: 2018-02-21 21:46-0500\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -183,20 +183,20 @@ msgid ""
 "Seeing a 'no such option' message?  Please restart Inkscape to fix."
 msgstr ""
 
-#: embroider.py:1743
+#: embroider.py:1747
 msgid "No embroiderable paths selected."
 msgstr ""
 
-#: embroider.py:1745
+#: embroider.py:1749
 msgid "No embroiderable paths found in document."
 msgstr ""
 
-#: embroider.py:1746
+#: embroider.py:1750
 msgid ""
 "Tip: use Path -> Object to Path to convert non-paths before embroidering."
 msgstr ""
 
-#: embroider.py:1758
+#: embroider.py:1762
 msgid "Embroidery"
 msgstr ""
 
@@ -296,7 +296,7 @@ msgid ""
 "Preset \"%s\" already exists.  Please use another name or press \"Overwrite\""
 msgstr ""
 
-#: embroider_simulate.py:303
+#: embroider_simulate.py:306
 msgid "Embroidery Simulation"
 msgstr ""
 
diff --git a/stub.py b/stub.py
index 9fa33160..850cfe40 100644
--- a/stub.py
+++ b/stub.py
@@ -2,6 +2,7 @@
 
 import sys
 import os
+import subprocess
 
 # ink/stitch
 #
@@ -27,4 +28,17 @@ binary_path = os.path.join("inkstitch", "bin", binary_name)
 args = sys.argv[:]
 args[0] = binary_path
 
-os.execv(binary_path, args)
+# os.execve works here for Linux, but only this seems to get the
+# extension output to Inkscape on Windows
+extension = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+stdout, stderr = extension.communicate()
+
+stdout = stdout.strip()
+if stdout:
+    print stdout.strip(),
+
+stderr = stderr.strip()
+if stderr:
+    print >> sys.stderr, stderr.strip(),
+
+sys.exit(extension.returncode)