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authorRobin Haberkorn <robin.haberkorn@googlemail.com>2021-10-11 08:51:02 +0300
committerRobin Haberkorn <robin.haberkorn@googlemail.com>2021-10-11 08:51:02 +0300
commit8ef010da59743fcc4927c790f585ba414ec7b129 (patch)
tree88b31b9017abc34d0f94209a997413a22788ef95 /src/interface-gtk
parent8baa1b3ebe163de3a55696e50d49f160529473b3 (diff)
downloadsciteco-8ef010da59743fcc4927c790f585ba414ec7b129.tar.gz
optimized caret scrolling: this is a costly operation and is now done only once per keypress
* Esp. costly since Scintilla 5. * We now avoid any Scintilla message that automatically scrolls the caret (makes the caret visible) and instead call SCI_SCROLLCARET only once after every keypress in the interface implementation. * From nowon, use * SCI_SETEMPTYSELECTION instead of SCI_GOTOPOS * SCI_SETEMPTYSELECTION(SCI_POSITIONFROMLINE(...)) instead of SCI_GOTOLINE * SCI_SETSELECTIONSTART and SCI_SETSELECTIONEND instead of SCI_SETSEL * With these optimizations we are significantly faster than before the Scintilla upgrade (6e67f5a682ff46d69888fec61b94bf45cec46721). It is now even safe to execute the Gtk test suite during CI.
Diffstat (limited to 'src/interface-gtk')
-rw-r--r--src/interface-gtk/interface.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/interface-gtk/interface.c b/src/interface-gtk/interface.c
index 5b9f530..aa63276 100644
--- a/src/interface-gtk/interface.c
+++ b/src/interface-gtk/interface.c
@@ -880,6 +880,16 @@ teco_interface_handle_key_press(guint keyval, guint state, GError **error)
}
/*
+ * We avoid Scintilla messages that scroll the caret during macro
+ * execution since it has been benchmarked to be very a very costly operation.
+ * Instead we do it only once after every keypress.
+ *
+ * FIXME: This could be in teco_cmdline_keypress() since it is common among
+ * all interface implementations.
+ */
+ teco_interface_ssm(SCI_SCROLLCARET, 0, 0);
+
+ /*
* The styles configured via Scintilla might change
* with every keypress.
*/