patch 7.4.2199
Problem: In the GUI the cursor is hidden when redrawing any window,
causing flicker.
Solution: Only undraw the cursor when updating the window it's in.
diff --git a/src/screen.c b/src/screen.c
index f8d283f..0458ed7 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -498,6 +498,7 @@
int did_one;
#endif
#ifdef FEAT_GUI
+ int did_undraw = FALSE;
int gui_cursor_col;
int gui_cursor_row;
#endif
@@ -697,11 +698,12 @@
/* Remove the cursor before starting to do anything, because
* scrolling may make it difficult to redraw the text under
* it. */
- if (gui.in_use)
+ if (gui.in_use && wp == curwin)
{
gui_cursor_col = gui.cursor_col;
gui_cursor_row = gui.cursor_row;
gui_undraw_cursor();
+ did_undraw = TRUE;
}
#endif
}
@@ -757,7 +759,7 @@
if (gui.in_use)
{
out_flush(); /* required before updating the cursor */
- if (did_one && !gui_mch_is_blink_off())
+ if (did_undraw && !gui_mch_is_blink_off())
{
/* Put the GUI position where the cursor was, gui_update_cursor()
* uses that. */
@@ -9679,7 +9681,7 @@
#ifdef FEAT_GUI
/* Don't update the GUI cursor here, ScreenLines[] is invalid until the
* scrolling is actually carried out. */
- gui_dont_update_cursor();
+ gui_dont_update_cursor(row + off <= gui.cursor_row);
#endif
if (*T_CCS != NUL) /* cursor relative to region */
@@ -9781,10 +9783,10 @@
}
/*
- * delete lines on the screen and update ScreenLines[]
- * 'end' is the line after the scrolled part. Normally it is Rows.
- * When scrolling region used 'off' is the offset from the top for the region.
- * 'row' and 'end' are relative to the start of the region.
+ * Delete lines on the screen and update ScreenLines[].
+ * "end" is the line after the scrolled part. Normally it is Rows.
+ * When scrolling region used "off" is the offset from the top for the region.
+ * "row" and "end" are relative to the start of the region.
*
* Return OK for success, FAIL if the lines are not deleted.
*/
@@ -9900,7 +9902,8 @@
#ifdef FEAT_GUI
/* Don't update the GUI cursor here, ScreenLines[] is invalid until the
* scrolling is actually carried out. */
- gui_dont_update_cursor();
+ gui_dont_update_cursor(gui.cursor_row >= row + off
+ && gui.cursor_row < end + off);
#endif
if (*T_CCS != NUL) /* cursor relative to region */