Added two pin shapes:

* reverted clock ( --<| ) as it is commonly used for inverted clock in x-USSR
* nonlogic       ( ---X ) for non-logic pins of logic ICs (commonly used for power and timing RC pins).

bitmaps/CMakeLists.txt

@@ -308,6 +308,8 @@ set(BITMAP_SRCS
     pinshape_active_low_input.xpm
     pinshape_clock_active_low.xpm
     pinshape_active_low_output.xpm
+    pinshape_clock_fall.xpm
+    pinshape_nonlogic.xpm
     pintype_input.xpm
     pintype_output.xpm
     pintype_bidi.xpm

bitmaps/pinshape_clock_fall.xpm

+/* XPM */
+const char *pinshape_clock_fall_xpm[] = {
+/* columns rows colors chars-per-pixel */
+"15 15 2 1",
+". c Black",
+"  c #FFFFFF",
+/* pixels */
+"               ",
+"               ",
+"    .          ",
+"    .          ",
+"    .          ",
+"    ..         ",
+"    . .        ",
+"    .  ....... ",
+"    . .        ",
+"    ..         ",
+"    .          ",
+"    .          ",
+"    .          ",
+"               ",
+"               "
+};

bitmaps/pinshape_nonlogic.xpm

+/* XPM */
+const char *pinshape_nonlogic_xpm[] = {
+/* columns rows colors chars-per-pixel */
+"15 15 2 1",
+". c Black",
+"  c #FFFFFF",
+/* pixels */
+"               ",
+"               ",
+"    .          ",
+"    .          ",
+" .  .  .       ",
+"  . . .        ",
+"   ...         ",
+"    .......... ",
+"   ...         ",
+"  . . .        ",
+" .  .  .       ",
+"    .          ",
+"    .          ",
+"               ",
+"               "
+};

eeschema/class_pin.cpp

@@ -63,7 +63,9 @@ static const wxString pin_style_names[] =
     _( "Inverted clock" ),
     _( "Input low" ),
     _( "Clock low" ),
-    _( "Output low" )
+    _( "Output low" ),
+    _( "Falling edge clock" ),
+    _( "NonLogic" )
 };
 
 // bitmaps to show pins shapes in dialog editor
@@ -77,6 +79,8 @@ static const char ** s_icons_Pins_Shapes[] =
     pinshape_active_low_input_xpm,
     pinshape_clock_active_low_xpm,
     pinshape_active_low_output_xpm,
+    pinshape_clock_fall_xpm,
+    pinshape_nonlogic_xpm
 };
 
 
@@ -91,7 +95,9 @@ static const int pin_style_codes[] =
     CLOCK | INVERT,
     LOWLEVEL_IN,
     LOWLEVEL_IN | CLOCK,
-    LOWLEVEL_OUT
+    LOWLEVEL_OUT,
+    CLOCK_FALL,
+    NONLOGIC
 };
 
 
@@ -885,6 +891,26 @@ void LIB_PIN::DrawPinSymbol( WinEDA_DrawPanel* aPanel,
                   MapY1 * INVERT_PIN_RADIUS * 2 + y1 );
         GRLineTo( &aPanel->m_ClipBox, aDC, posX, posY, width, color );
     }
+    else if( m_PinShape & CLOCK_FALL ) /* an alternative for Inverted Clock */
+    {
+        GRMoveTo( x1 + MapY1 * CLOCK_PIN_DIM,
+                  y1 - MapX1 * CLOCK_PIN_DIM );
+        GRLineTo( &aPanel->m_ClipBox,
+                  aDC,
+                  x1 + MapX1 * CLOCK_PIN_DIM,
+                  y1 + MapY1 * CLOCK_PIN_DIM,
+                  width,
+                  color );
+        GRLineTo( &aPanel->m_ClipBox,
+                  aDC,
+                  x1 - MapY1 * CLOCK_PIN_DIM,
+                  y1 + MapX1 * CLOCK_PIN_DIM,
+                  width,
+                  color );
+        GRMoveTo( MapX1 * CLOCK_PIN_DIM + x1,
+                  MapY1 * CLOCK_PIN_DIM + y1 );
+        GRLineTo( &aPanel->m_ClipBox, aDC, posX, posY, width, color );
+    }
     else
     {
         GRMoveTo( x1, y1 );
@@ -974,6 +1000,26 @@ void LIB_PIN::DrawPinSymbol( WinEDA_DrawPanel* aPanel,
         }
     }
 
+    else if( m_PinShape & NONLOGIC ) /* NonLogic pin symbol */
+    {
+        GRMoveTo( x1 - (MapX1 + MapY1) * NONLOGIC_PIN_DIM,
+                  y1 - (MapY1 - MapX1) * NONLOGIC_PIN_DIM );
+        GRLineTo( &aPanel->m_ClipBox,
+                  aDC,
+                  x1 + (MapX1 + MapY1) * NONLOGIC_PIN_DIM,
+                  y1 + (MapY1 - MapX1) * NONLOGIC_PIN_DIM,
+                  width,
+                  color );
+        GRMoveTo( x1 - (MapX1 - MapY1) * NONLOGIC_PIN_DIM,
+                  y1 - (MapY1 + MapX1) * NONLOGIC_PIN_DIM );
+        GRLineTo( &aPanel->m_ClipBox,
+                  aDC,
+                  x1 + (MapX1 - MapY1) * NONLOGIC_PIN_DIM,
+                  y1 + (MapY1 + MapX1) * NONLOGIC_PIN_DIM,
+                  width,
+                  color );
+    }
+
     /* Draw the pin end target (active end of the pin)
      * Draw but do not print the pin end target 1 pixel width
      */

eeschema/class_pin.h

@@ -26,6 +26,7 @@
 
 #define CLOCK_PIN_DIM       40  /* Dim of clock pin symbol. */
 #define IEEE_SYMBOL_PIN_DIM 40  /* Dim of special pin symbol. */
+#define NONLOGIC_PIN_DIM    30  /* Dim of nonlogic pin symbol (X). */
 
 /**
  * The component library pin object electrical types used in ERC tests.
@@ -60,7 +61,9 @@ enum DrawPinShape {
     INVERT       = 1,
     CLOCK        = 2,
     LOWLEVEL_IN  = 4,
-    LOWLEVEL_OUT = 8
+    LOWLEVEL_OUT = 8,
+    CLOCK_FALL   = 0x10, /* this is common form for inverted clock in Eastern Block */
+    NONLOGIC     = 0x20,
 };
 
 

include/bitmaps.h

@@ -294,8 +294,10 @@ extern const char* pinorient_right_xpm[];
 extern const char* pinorient_left_xpm[];
 extern const char* pinorient_up_xpm[];
 extern const char* pinorient_down_xpm[];
+extern const char* pinshape_nonlogic_xpm[];
 extern const char* pinshape_normal_xpm[];
 extern const char* pinshape_invert_xpm[];
+extern const char* pinshape_clock_fall_xpm[];
 extern const char* pinshape_clock_normal_xpm[];
 extern const char* pinshape_clock_invert_xpm[];
 extern const char* pinshape_active_low_input_xpm[];