X-Git-Url: https://code.delx.au/bg-scripts/blobdiff_plain/a8d026613301bb315f8f66f50b1b35d8db996744..9bbea708782fc721666590c03c36f574cbb3e756:/wallchanger.py

diff --git a/wallchanger.py b/wallchanger.py
index 5982621..4ee3b08 100755
--- a/wallchanger.py
+++ b/wallchanger.py
@@ -4,8 +4,12 @@
 # Licensed for distribution under the GPL version 2, check COPYING for details
 # This is a cross platform/cross window manager way to change your wallpaper
 
-import commands, sys, os, os.path, subprocess, time
+import commands, sys, os, os.path, time
 import logging
+try:
+	import PIL, PIL.Image
+except ImportError:
+	PIL = None
 
 __all__ = ("init", "set_image")
 
@@ -21,6 +25,10 @@ def set_image(filename):
 def init(*args, **kwargs):
 	"""Desktop Changer factory"""
 
+	if sys.platform == "win32":
+		changers.append(WIN32Changer(*args, **kwargs))
+		return
+
 	logging.debug("Testing for OSX (NonX11)")
 	if commands.getstatusoutput("ps ax -o command -c|grep -q WindowServer")[0] == 0:
 		changers.append(OSXChanger(*args, **kwargs))
@@ -31,7 +39,7 @@ def init(*args, **kwargs):
 	else:
 		if os.uname()[0] == 'Darwin':
 			# Try to detect if the X11 server is running on OSX
-			if commands.getstatusoutput("ps ax -o command|grep -q '/.*X11 .* %s'" % os.environ['DISPLAY'])[0] != 0:
+			if commands.getstatusoutput("ps ax -o command|grep -q '^/.*X11 .* %s'" % os.environ['DISPLAY'])[0] != 0:
 				# X11 is not running for this display
 				return
 
@@ -39,8 +47,12 @@ def init(*args, **kwargs):
 	if commands.getstatusoutput("xwininfo -name 'KDE Desktop'")[0] == 0:
 		changers.append(KDEChanger(*args, **kwargs))
 
+	logging.debug("Testing for Unity")
+	if commands.getstatusoutput("xlsclients | grep -qi unity")[0] == 0:
+		changers.append(UnityChanger(*args, **kwargs))
+
 	logging.debug("Testing for Gnome")
-	if commands.getstatusoutput("xwininfo -name 'gnome-session'")[0] == 0:
+	if commands.getstatusoutput("xwininfo -name 'gnome-settings-daemon'")[0] == 0:
 		changers.append(GnomeChanger(*args, **kwargs))
 
 	logging.debug("Testing for WMaker")
@@ -59,9 +71,46 @@ class BaseChanger(object):
 		self.permanent = permanent
 		self.convert = convert
 
+		try:
+			import subprocess
+		except ImportError:
+			self._runProgram = self._runProgram_command
+		else:
+			self._runProgram = self._runProgram_subprocess
+
+	def _runProgram_subprocess(self, cmd):
+		import subprocess
+		return subprocess.Popen(cmd, stdout=sys.stdout, stderr=sys.stderr, stdin=None).wait()
+
+	# A simple implementation of subprocess for python2.4
+	def _runProgram_command(self, cmd):
+		"""Runs a program given in cmd"""
+		return os.spawnvp(os.P_WAIT, cmd[0], cmd)
+
 	def set_image(self, filename):
 		raise NotImplementedError()
 
+	def convert_image_format(self, filename, format='BMP', allowAlpha=False, extension='.bmp'):
+		"""Convert the image to another format, and store it in a local place"""
+		if not os.path.exists(filename):
+			logger.warn('The input file "%s" does not exist, so it will not be converted', filename)
+			return filename, False
+		if PIL is None:
+			logger.warn('PIL could not be found, not converting image format')
+			return filename, False
+
+		self.remove_old_image_cache()
+		output_name = os.path.join(self._ConvertedWallpaperLocation, '%s%s' % (time.time(), extension))
+		img = PIL.Image.open(filename)
+
+		# Remove the alpha channel if the user doens't want it
+		if not allowAlpha and img.mode == 'RGBA':
+			img = img.convert('RGB')
+		img.save(output_name, format)
+
+		return output_name, True
+
+
 class WMakerChanger(BaseChanger):
 	name = "WindowMaker"
 	_ConvertedWallpaperLocation = '/tmp/wallpapers_wmaker/'
@@ -81,7 +130,7 @@ class WMakerChanger(BaseChanger):
 		output_name = os.path.join(self._ConvertedWallpaperLocation, '%s.png' % time.time())
 		cmd = ["convert", '-resize', '1280', '-gravity', 'Center', '-crop', '1280x800+0+0', file, output_name]
 		logging.debug("""Convert command: '"%s"'""", '" "'.join(cmd))
-		return output_name, subprocess.Popen(cmd, stdout=sys.stdout, stderr=sys.stderr, stdin=None).wait()
+		return output_name, self._runProgram(cmd)
 
 	def set_image(self, file):
 		if self.convert:
@@ -100,7 +149,7 @@ class WMakerChanger(BaseChanger):
 			cmd += ["-u"] # update the wmaker database
 		cmd += [file]
 		logging.debug('''WMaker bgset command: "'%s'"''', "' '".join(cmd))
-		return not subprocess.Popen(cmd, stdout=sys.stdout, stderr=sys.stderr, stdin=None).wait()
+		return not self._runProgram(cmd)
 
 class OSXChanger(BaseChanger):
 	name = "Mac OS X"
@@ -125,10 +174,7 @@ class OSXChanger(BaseChanger):
 		self.remove_old_image_cache()
 		output_name = os.path.join(self._ConvertedWallpaperLocation, '%s.png' % time.time())
 		try:
-			import PIL, PIL.Image
-			img = PIL.Image.open(file)
-			img.save(output_name, "PNG")
-			return output_name, True
+			return super(OSXChanger, self).convert_image_format(file, format='PNG', extension='.png')
 		except ImportError:
 			logging.debug('Could not load PIL, going to try just copying the image')
 			import shutil
@@ -162,12 +208,62 @@ class OSXChanger(BaseChanger):
 		logging.debug(cmd)
 		return not commands.getstatusoutput(cmd)[0]
 
+class WIN32Changer(BaseChanger):
+	name = "Windows"
+	_ConvertedWallpaperLocation = os.path.join(os.environ.get('APPDATA', os.path.expanduser('~')), 'wallchanger')
+
+	def __init__(self, *args, **kwargs):
+		BaseChanger.__init__(self, *args, **kwargs)
+		if not self.convert:
+			logging.warn('Running on windows, but convert is not set')
+
+	def remove_old_image_cache(self):
+		"""Cleans up any old temp images"""
+		if not os.path.isdir(self._ConvertedWallpaperLocation):
+			os.mkdir(self._ConvertedWallpaperLocation)
+		for fullpath, filenames, dirnames in os.walk(self._ConvertedWallpaperLocation, topdown=False):
+			for filename in filenames:
+				os.unlink(os.path.join(fullpath, filename))
+			for dirname in dirnames:
+				os.unlink(os.path.join(fullpath, dirname))
+
+	def set_image(self, filename):
+		import ctypes
+		user32 = ctypes.windll.user32
+
+		# Taken from the Platform SDK
+		SPI_SETDESKWALLPAPER = 20
+		SPIF_SENDWININICHANGE = 2
+
+		if self.convert:
+			filename, ret = self.convert_image_format(filename)
+			if not ret:
+				logging.debug("Convert failed")
+				return False
+
+		# Parameters for SystemParametersInfoA are:
+		# (UINT uiAction, UINT uiParam, PVOID pvParam, UINT fWinIni)
+		user32.SystemParametersInfoA(
+			SPI_SETDESKWALLPAPER,
+			0,
+			filename,
+			SPIF_SENDWININICHANGE,
+		)
+		return True
+
 class GnomeChanger(BaseChanger):
 	name = "Gnome"
 	def set_image(self, file):
 		cmd = ['gconftool-2', '--type', 'string', '--set', '/desktop/gnome/background/picture_filename', file]
 		logging.debug(cmd)
-		return not subprocess.Popen(cmd, stdout=sys.stdout, stderr=sys.stderr, stdin=None).wait()
+		return not self._runProgram(cmd)
+
+class UnityChanger(BaseChanger):
+	name = "Unity"
+	def set_image(self, file):
+		cmd = ['gsettings', 'set', 'org.gnome.desktop.background', 'picture-uri', 'file://'+file]
+		logging.debug(cmd)
+		return not self._runProgram(cmd)
 
 class KDEChanger(BaseChanger):
 	name = "KDE"
@@ -183,7 +279,7 @@ class KDEChanger(BaseChanger):
 		cmds.append(['dcop', 'kdesktop', 'KBackgroundIface', 'configure'])
 		for cmd in cmds:
 			logging.debug(cmd)
-			if subprocess.Popen(cmd, stdout=sys.stdout, stderr=sys.stderr, stdin=None).wait() != 0:
+			if self._runProgram(cmd) != 0:
 				return False
 
 		return True