- simplified tool_button and moved it from gui_tool.c to into gui_util.c

- moved make_image from gui_tool.c to into gui_util.c as well
- generalized set_frame_image and moved it to gui_util.c as set_image
- tool_button_press_event didn't check which button was pressed
- added buttons to switch visibility of frames, vectors, and measurements
- when creating a measurement through the GUI, don't invert if both points are
  minima (otherwise, one could never get the text point the other way)



git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5411 99fdad57-331a-0410-800a-d7fa5415bdb3

icons/meas_off.fig

@@ -0,0 +1,19 @@
+#FIG 3.2  Produced by xfig version 3.2.5a
+Landscape
+Center
+Inches
+A4      
+100.00
+Single
+-2
+1200 2
+2 2 0 1 0 7 50 -1 10 0.000 0 0 -1 0 0 5
+	 3600 2400 6000 2400 6000 4800 3600 4800 3600 2400
+2 1 0 10 0 7 40 -1 -1 0.000 0 0 -1 0 0 2
+	 3900 3600 4200 4200
+2 1 0 10 0 7 40 -1 -1 0.000 0 0 -1 1 1 2
+	0 0 10.00 450.00 450.00
+	0 0 10.00 450.00 450.00
+	 4050 3900 5550 3150
+2 1 0 10 0 7 40 -1 -1 0.000 0 0 -1 0 0 2
+	 5400 2850 5700 3450

icons/stuff.fig

@@ -0,0 +1,17 @@
+#FIG 3.2  Produced by xfig version 3.2.5a
+Landscape
+Center
+Inches
+A4      
+100.00
+Single
+-2
+1200 2
+0 32 #c0c000
+2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
+	 3600 2400 6000 2400 6000 4800 3600 4800 3600 2400
+2 1 0 10 32 7 50 -1 -1 0.000 0 0 -1 1 0 2
+	1 1 10.00 300.00 300.00
+	 3900 4515 5700 3315
+2 1 0 10 12 7 50 -1 -1 0.000 0 1 -1 0 0 3
+	 3900 3600 3900 2760 5700 2760

icons/stuff_off.fig

@@ -0,0 +1,17 @@
+#FIG 3.2  Produced by xfig version 3.2.5a
+Landscape
+Center
+Inches
+A4      
+100.00
+Single
+-2
+1200 2
+0 32 #c0c000
+2 1 0 10 0 7 40 -1 -1 0.000 0 0 -1 1 0 2
+	1 1 10.00 300.00 300.00
+	 3900 4515 5700 3315
+2 1 0 10 0 7 40 -1 -1 0.000 0 1 -1 0 0 3
+	 3900 3600 3900 2760 5700 2760
+2 2 0 1 0 7 50 -1 10 0.000 0 0 -1 0 0 5
+	 3600 2400 6000 2400 6000 4800 3600 4800 3600 2400