Hello friends!
I've been playing around with gerbv and trying to modify it to read
.kicad_pcb files as input. However, I'm having trouble finding the places
in the source code where
~gerbv reads a gerber file: I think this has something to do with
project.c/read_project_file() which has the following line:
[965] initfile = gerb_find_file("init.scm", initdirs);
But I haven't found anything as explicit as the code below (in red) which
reads the input file character by character and has a switch statement and
everything
~gerbv draws something on screen: I think this has something to do with the
library GDK from the GNOME/GTK project, and also something to do with
callbacks.c which contains
[224] gtk_widget_show (screen
<http://gerbv.geda-project.org/doxygen/callbacks_8c.html#a1ec55bca5ad7868d265ee62fe10a29bc>
.win.gerber);
Any comments would be much appreciated. Thanks!
Colin Tang
while( text && *text )
{
switch( *text )
{
case ' ':
case '\r':
case '\n':
text++;
break;
case '*': // End command
m_CommandState = END_BLOCK;
text++;
break;
case 'M': // End file
m_CommandState = CMD_IDLE;
while( *text )
text++;
break;
case 'G': /* Line type Gxx : command */
G_command = GCodeNumber( text );
Execute_G_Command( text, G_command );
break;
case 'D': /* Line type Dxx : Tool selection (xx > 0) or
* command if xx = 0..9 */
D_commande = DCodeNumber( text );
Execute_DCODE_Command( text, D_commande );
break;
case 'X':
case 'Y': /* Move or draw command */
m_CurrentPos = ReadXYCoord( text );
if( *text == '*' ) // command like X12550Y19250*
{
Execute_DCODE_Command( text, m_Last_Pen_Command );
}
break;
case 'I':
case 'J': /* Auxiliary Move command */
m_IJPos = ReadIJCoord( text );
if( *text == '*' ) // command like X35142Y15945J504*
{
Execute_DCODE_Command( text, m_Last_Pen_Command );
}
break;
case '%':
if( m_CommandState != ENTER_RS274X_CMD )
{
m_CommandState = ENTER_RS274X_CMD;
ReadRS274XCommand( lineBuffer, GERBER_BUFZ, text );
}
else //Error
{
AddMessageToList( "Expected RS274X Command" );
m_CommandState = CMD_IDLE;
text++;
}
break;
default:
msg.Printf( "Unexpected char 0x%2.2X <%c<", *text,
*text );
AddMessageToList( msg );
text++;
break;
}
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