Extensions to alternate layer visibility for glyph layers.

These extensions are using the new "silent" option that I have introduced to the inx file sintax in the previous commit.

(bzr r10241)

6 files changed, 150 insertions, 0 deletions

diff --git a/share/extensions/Makefile.am b/share/extensions/Makefile.am
index 78f05a827..6189427ca 100644
--- a/share/extensions/Makefile.am
+++ b/share/extensions/Makefile.am
@@ -102,6 +102,8 @@ extensions = \
 	measure.py \
 	motion.py \
 	new_glyph_layer.py \
+	next_glyph_layer.py \
+	previous_glyph_layer.py \
 	outline2svg.pl	\
 	PathData.py \
 	param_curves.py \
@@ -274,6 +276,8 @@ modules = \
 	measure.inx \
 	motion.inx \
 	new_glyph_layer.inx \
+	next_glyph_layer.inx \
+	previous_glyph_layer.inx \
 	outline2svg.inx \
 	param_curves.inx \
 	pathalongpath.inx\
diff --git a/share/extensions/next_glyph_layer.inx b/share/extensions/next_glyph_layer.inx
new file mode 100644
index 000000000..7a3b03670
--- /dev/null
+++ b/share/extensions/next_glyph_layer.inx
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+  <_name>View Next Glyph</_name>
+  <id>org.inkscape.typography.nextglyphlayer</id>
+  <dependency type="executable" location="extensions">inkex.py</dependency>
+  <effect>
+    <object-type>all</object-type>
+    <effects-menu>
+      <submenu _name="Typography"/>
+    </effects-menu>
+  </effect>
+  <script>
+    <command reldir="extensions" interpreter="python">next_glyph_layer.py</command>
+  </script>
+	<options silent="true"></options>
+</inkscape-extension>
diff --git a/share/extensions/next_glyph_layer.py b/share/extensions/next_glyph_layer.py
new file mode 100644
index 000000000..25f22cc9a
--- /dev/null
+++ b/share/extensions/next_glyph_layer.py
@@ -0,0 +1,54 @@
+'''
+Copyright (C) 2011 Felipe Correa da Silva Sanches
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+'''
+
+import inkex
+
+class NextLayer(inkex.Effect):
+	def __init__(self):
+		inkex.Effect.__init__(self)
+
+	def effect(self):
+
+		# Get access to main SVG document element
+		self.svg = self.document.getroot()
+
+		groups = self.svg.findall(inkex.addNS('g', 'svg'))
+
+		count=0
+		glyphs=[]
+		for g in groups:
+			if "GlyphLayer-" in g.get(inkex.addNS('label', 'inkscape')):
+				glyphs.append(g)
+				if g.get("style")=="display:inline":
+					count+=1
+					current = len(glyphs)-1
+
+		if count!=1 or len(glyphs)<2:
+			return
+		#TODO: inform the user?
+
+		glyphs[current].set("style", "display:none")
+		glyphs[(current+1)%len(glyphs)].set("style", "display:inline")
+		return
+
+#TODO: loop 
+
+if __name__ == '__main__':
+	e = NextLayer()
+	e.affect()
+
diff --git a/share/extensions/previous_glyph_layer.inx b/share/extensions/previous_glyph_layer.inx
new file mode 100644
index 000000000..928016adc
--- /dev/null
+++ b/share/extensions/previous_glyph_layer.inx
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+  <_name>View Previous Glyph</_name>
+  <id>org.inkscape.typography.previousglyphlayer</id>
+  <dependency type="executable" location="extensions">inkex.py</dependency>
+  <effect>
+    <object-type>all</object-type>
+    <effects-menu>
+      <submenu _name="Typography"/>
+    </effects-menu>
+  </effect>
+  <script>
+    <command reldir="extensions" interpreter="python">previous_glyph_layer.py</command>
+  </script>
+	<options silent="true"></options>
+</inkscape-extension>
diff --git a/share/extensions/previous_glyph_layer.py b/share/extensions/previous_glyph_layer.py
new file mode 100644
index 000000000..3ced9c571
--- /dev/null
+++ b/share/extensions/previous_glyph_layer.py
@@ -0,0 +1,54 @@
+'''
+Copyright (C) 2011 Felipe Correa da Silva Sanches
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+'''
+
+import inkex
+
+class PreviousLayer(inkex.Effect):
+	def __init__(self):
+		inkex.Effect.__init__(self)
+
+	def effect(self):
+
+		# Get access to main SVG document element
+		self.svg = self.document.getroot()
+
+		groups = self.svg.findall(inkex.addNS('g', 'svg'))
+
+		count=0
+		glyphs=[]
+		for g in groups:
+			if "GlyphLayer-" in g.get(inkex.addNS('label', 'inkscape')):
+				glyphs.append(g)
+				if g.get("style")=="display:inline":
+					count+=1
+					current = len(glyphs)-1
+
+		if count!=1 or len(glyphs)<2:
+			return
+		#TODO: inform the user?
+
+		glyphs[current].set("style", "display:none")
+		glyphs[current-1].set("style", "display:inline")
+		return
+
+#TODO: loop 
+
+if __name__ == '__main__':
+	e = PreviousLayer()
+	e.affect()
+
diff --git a/share/keys/default.xml b/share/keys/default.xml
index 9ac48d24f..e7e51f694 100644
--- a/share/keys/default.xml
+++ b/share/keys/default.xml
@@ -592,4 +592,10 @@ override) the bindings in the main default.xml.
  <bind key="g" modifiers="Ctrl,Alt" action="org.inkscape.typography.newglyphlayer" display="true"/>
  <bind key="G" modifiers="Ctrl,Alt" action="org.inkscape.typography.newglyphlayer"/>
 
+ <bind key="h" modifiers="Ctrl,Alt" action="org.inkscape.typography.previousglyphlayer" display="true"/>
+ <bind key="H" modifiers="Ctrl,Alt" action="org.inkscape.typography.previousglyphlayer"/>
+
+ <bind key="j" modifiers="Ctrl,Alt" action="org.inkscape.typography.nextglyphlayer" display="true"/>
+ <bind key="J" modifiers="Ctrl,Alt" action="org.inkscape.typography.nextglyphlayer"/>
+
 </keys>