No Cursor on Map in " Create Route "

[allene222]

To try and fix this I upgraded OS from Hardy to Lizard and upgraded OpenCPN from 2.1 to 2.5. I have tried new themes and several other things. I am running an old Vaio PGG 9201 laptop with a Neomagic MM2380 VGA chip. The cursor is invisible over the map when I am in "Create Route" mode but comes back when I end the route. Needless to say this makes it impossible to actually enter a route with the mouse. I have checked Ubuntu bugs and while I see bugs where the cursor disappears, it is a system wide thing and not a mode within a single program.

I consulted with someone more expert than I and he suggested I post on this forum.

I would appreciate any help I can get on this.

Allen
L-36.com

[nohal]

Allen...
This one looks like a system problem beyond our reach. What I can tell you is what to do not to ever change the cursor from the default system one (needs a little modification and recompiling the source). Let me know if you are capable of compiling yourself...

Pavel

[allene222]

I do not understand what you are saying. What I can say is that I have the standard install and could probably compile myself if given detailed instructions. But I don't understand what you are suggesting I do.

[nohal]

Allen...
If Compiling - Linux | Official OpenCPN Homepage is not Chinese for you, edit chcanv.cpp in the source and replace the body of ChartCanvas::SetCursor function with

return true;

recompile and install. Unfortunately this is all help I can provide.

Good luck

Pavel

[allene222]

That looks straight forward. Could I ask what this change does? Are you sure this will work or is this just something to try?

[allene222]

I see that on my desktop the cursor changes to a little pencil. You are suggesting I nook that function, which clearly should work. Thanks for your help.

[allene222]

The program compile when smoothly and it did fix the problem of the cursor vanishing. The only thing that was not as the documentation said was that the executable was in the build directory and not in /usr/local as it stated.

I do have another issue but I will research it and post if I cannot find an answer.

Thank you for your help

[cagney]

Originally Posted by allene222

The program compile when smoothly and it did fix the problem of the cursor vanishing. The only thing that was not as the documentation said was that the executable was in the build directory and not in /usr/local as it stated.

I do have another issue but I will research it and post if I cannot find an answer.

Thank you for your help

When you run "make" the executable is produced in the build directory. Then, when you run "make install", as the last step in the compilation, "opencpn" is moved to /usr/local/bin, with the default setup.

I often skip this last step if I'm testing a new build.

Thomas

[allene222]

I must have missed the make install step. My mistake then. I will fix that. Thanks for pointing that out.

Just for clarification for anyone reading this, here is what I did:

I Changed This code:

bool ChartCanvas::SetCursor ( const wxCursor &c )
{
if(g_bopengl)
return m_glcc->SetCursor (c);
else
return wxWindow::SetCursor ( c );
}

To this


bool ChartCanvas::SetCursor ( const wxCursor &c )
{
return true;
}

The end result is that I do not get either the little pencil or the invisible cursor, just the normal cursor.

It would be nice to know what was wrong with the system as I am assuming if the system every upgrades, this fix will need to be redone.

Allen