#629 Control-A, Control-V crashes Code::Blocks

[Josh @ Dreamland]

Steps to reproduce: Copy some text to your clipboard in a different application (such as a terminal). Open a file in Code::Blocks. Press Control-A to select all text. Press Control-V to paste the new text.

In my experience, Code::Blocks pretty reliably crashes, unless the data has been copied from a Code::Blocks editor. For example, Ctrl-A Ctrl-C Ctrl-V does not reproduce this issue. The issue does not require an entire project to be open; a single, plain-text file will have this issue.

In my case, I was copying data out of gnome-terminal.

[Teodor Petrov]

OS and Codeblocks version please?
How have you installed codeblock?
Can you provide a backtrace?

For me it works perfectly fine...

[Josh @ Dreamland]

Version 17.12; Build: Jan 20, 2018, 10:29:55 - wx3.0.3 (Linux, unicode) - 64 bit

Installed through Pacman.

Backtrace: https://pastebin.com/93J88b1e

[Teodor Petrov]

Can you try if the fix from rev11280 fixes the problem for you? I'm not sure it is good idea to use the wxgtk-3 when targeting gtk3. It is hightly untested and as far as I know there are many bugs in wxwidgets 3.0.x when targeting gtk3.

[Josh @ Dreamland]

I built the current SVN trunk (11319), and the issue persists.

The issue affects a selection of any size, not just the full-page selection.

[Teodor Petrov]

OK, I can reproduce.

Can you try if the patch below solves the problem for you?

diff --git a/src/src/main.cpp b/src/src/main.cpp
index 380749d2d..7cfcb1ed0 100644
--- a/src/src/main.cpp
+++ b/src/src/main.cpp
@@ -4315,10 +4315,10 @@ void MainFrame::OnEditorUpdateUI(CodeBlocksEvent& event)

     if (Manager::Get()->GetEditorManager() && event.GetEditor() == Manager::Get()->GetEditorManager()->GetActiveEditor())
     {
-#if defined(__WXMSW__) && wxCHECK_VERSION(3, 0, 0)
+#if /*defined(__WXMSW__) &&*/ wxCHECK_VERSION(3, 0, 0)
         // Execute the code to update the status bar outside of the paint event for scintilla.
         // Executing this function directly in the event handler causes redraw problems on Windows.
-        CallAfter(DoUpdateStatusBar);
+        CallAfter(&MainFrame::DoUpdateStatusBar);
 #else
         DoUpdateStatusBar();
 #endif // defined(__wxMSW__) && wxCHECK_VERSION(3, 0, 0)

Oh, and gtk3 is so ugly and broken...

[Josh @ Dreamland]

Seems to do the trick. I can no longer reproduce it after applying that patch. Thanks!

Perhaps I should just build Code::Blocks against GTK2. It's unclear to me why it's built against GTK3 in the official package. I don't have anything nice to say about the GTK3 transition, myself, so I'll leave it at that.

Cheers

[Teodor Petrov]

Because GTK people wil try to deprecate GTK2 and Arch follows upstream closly, so they've switchted your wxgtk to use GTK3...

[Teodor Petrov]

Fixed in trunk.