wxGUI/psmap: remove loading EPS file via using Ghostscript image rend…

…ering on OS MS Windows platform (OSGeo#2419)

PIL module has ability to load EPS file directly on this platform.

gui/wxpython/psmap/dialogs.py

@@ -36,7 +36,6 @@
 
 import os
 import string
-import sys
 from copy import deepcopy
 
 import wx
@@ -5947,10 +5946,6 @@ def OnImageSelectionChanged(self, event):
         if os.path.splitext(file)[1].lower() == ".eps":
             try:
                 pImg = PILImage.open(file)
-                if sys.platform == "win32":
-                    import types
-
-                    pImg.load = types.MethodType(loadPSForWindows, pImg)
                 img = PilImageToWxImage(pImg)
             except IOError as e:
                 GError(message=_("Unable to read file %s") % file)

gui/wxpython/psmap/frame.py

@@ -469,12 +469,6 @@ def OnCmdDone(self, event):
 
                     im_array = np.array(im)
                     im = PILImage.fromarray(np.rot90(im_array, 3))
-
-                # hack for Windows, change method for loading EPS
-                if sys.platform == "win32":
-                    import types
-
-                    im.load = types.MethodType(loadPSForWindows, im)
                 im.save(self.imgName, format="PNG")
             except (IOError, OSError) as e:
                 del busy
@@ -2472,11 +2466,6 @@ def DrawGraphics(
     def DrawBitmap(self, pdc, filePath, rotation, bbox):
         """Draw bitmap using PIL"""
         pImg = PILImage.open(filePath)
-        if sys.platform == "win32" and "eps" in os.path.splitext(filePath)[1].lower():
-            import types
-
-            pImg.load = types.MethodType(loadPSForWindows, pImg)
-
         if rotation:
             # get rid of black background
             pImg = pImg.convert("RGBA")

gui/wxpython/psmap/utils.py

@@ -15,13 +15,11 @@
 
 @author Anna Kratochvilova <kratochanna gmail.com>
 """
-import os
 import wx
-import string
 from math import ceil, floor, sin, cos, pi
 
 try:
-    from PIL import Image as PILImage
+    from PIL import Image as PILImage  # noqa
 
     havePILImage = True
 except ImportError:
@@ -452,66 +450,3 @@ def BBoxAfterRotation(w, h, angle):
     width = int(ceil(abs(x_max) + abs(x_min)))
     height = int(ceil(abs(y_max) + abs(y_min)))
     return width, height
-
-
-# hack for Windows, loading EPS works only on Unix
-# these functions are taken from EpsImagePlugin.py
-
-
-def loadPSForWindows(self):
-    # Load EPS via Ghostscript
-    if not self.tile:
-        return
-    self.im = GhostscriptForWindows(self.tile, self.size, self.fp)
-    self.mode = self.im.mode
-    self.size = self.im.size
-    self.tile = []
-
-
-def GhostscriptForWindows(tile, size, fp):
-    """Render an image using Ghostscript (Windows only)"""
-    # Unpack decoder tile
-    decoder, tile, offset, data = tile[0]
-    length, bbox = data
-
-    import tempfile
-
-    file = tempfile.mkstemp()[1]
-
-    # Build ghostscript command - for Windows
-    command = [
-        "gswin32c",
-        "-q",  # quite mode
-        "-g%dx%d" % size,  # set output geometry (pixels)
-        "-dNOPAUSE -dSAFER",  # don't pause between pages, safe mode
-        "-sDEVICE=ppmraw",  # ppm driver
-        "-sOutputFile=%s" % file,  # output file
-    ]
-
-    command = string.join(command)
-
-    # push data through ghostscript
-    try:
-        gs = os.popen(command, "w")
-        # adjust for image origin
-        if bbox[0] != 0 or bbox[1] != 0:
-            gs.write("%d %d translate\n" % (-bbox[0], -bbox[1]))
-        fp.seek(offset)
-        while length > 0:
-            s = fp.read(8192)
-            if not s:
-                break
-            length = length - len(s)
-            gs.write(s)
-        status = gs.close()
-        if status:
-            raise IOError("gs failed (status %d)" % status)
-        im = PILImage.core.open_ppm(file)
-
-    finally:
-        try:
-            os.unlink(file)
-        except:
-            pass
-
-    return im