Add auto_open_panel_for_diagnostics

Testing for precise rows leads to a "dead" area if cursor row is in topmost
half-screen of a file.  Less strict comparison makes the command useful in
that area as well.

src/config.zig

@@ -59,6 +59,7 @@ show_bottom_bar_grip: bool = true,
 show_scrollbars: bool = true,
 show_fileicons: bool = true,
 show_local_diagnostics_in_panel: bool = false,
+auto_open_panel_for_diagnostics: bool = true,
 scrollbar_auto_hide: bool = true,
 scroll_step_vertical: usize = 3,
 scroll_step_horizontal: usize = 5,

src/tui/editor.zig

@@ -3057,9 +3057,9 @@ pub const Editor = struct {
     pub fn scroll_view_center_cycle(self: *Self, _: Context) Result {
         const scroll_cursor_min_border_distance = Buffer.View.scroll_cursor_min_border_distance;
         const cursor_row = self.get_primary().cursor.row;
-        return if (cursor_row == self.view.row + scroll_cursor_min_border_distance)
+        return if (cursor_row <= self.view.row + scroll_cursor_min_border_distance)
             self.scroll_view_bottom(.{})
-        else if (cursor_row == self.view.row + self.view.rows / 2)
+        else if (cursor_row <= self.view.row + self.view.rows / 2)
             self.scroll_view_top(.{})
         else
             self.scroll_view_offset(self.view.rows / 2);
@@ -3074,7 +3074,7 @@ pub const Editor = struct {
 
     pub fn scroll_view_bottom(self: *Self, _: Context) Result {
         const scroll_cursor_min_border_distance = Buffer.View.scroll_cursor_min_border_distance;
-        return self.scroll_view_offset(if (self.view.rows > scroll_cursor_min_border_distance) self.view.rows -| scroll_cursor_min_border_distance + 1 else 0);
+        return self.scroll_view_offset(self.view.rows -| (scroll_cursor_min_border_distance + 1));
     }
     pub const scroll_view_bottom_meta: Meta = .{};
 

src/tui/mainview.zig

@@ -1089,6 +1089,9 @@ const cmds = struct {
             if (!tui.config().show_local_diagnostics_in_panel)
                 return;
         }
+        if (!self.is_panel_view_showing(filelist_view) and !tui.config().auto_open_panel_for_diagnostics) {
+            return;
+        }
         try self.add_find_in_files_result(
             .diagnostics,
             file_path,