update news. closes #2149, #2812

Author: clauswilke

NEWS.md

@@ -1,5 +1,17 @@
 # ggplot2 3.0.0.9000
 
+## breaking changes
+
+*   The function `range()` in `Coord` has been renamed to `backtransform_range()`
+    to clarify its intended meaning. This affects developers of custom coords. It
+    may also affect developers of custom geoms that use the `range()` function. That
+    code should be migrated to use `backtransform_range()`.
+
+## other changes
+
+*   `geom_hline()`, `geom_vline()`, and `geom_abline()` now work properly
+    with `coord_trans()` (@clauswilke, #2149, #2812).
+
 *   `fortify()` now displays a more informative error message for
     `grouped_df()` objects when dplyr is not installed (@jimhester, #2822).
 

R/coord-.r

@@ -77,10 +77,23 @@ Coord <- ggproto("Coord",
   # back into range in given in (possibly scale-transformed)
   # data coordinates
   backtransform_range = function(panel_params) {
-    warning("range backtransformation not implemented in this coord; plot may be wrong.")
+    warning(
+      "range backtransformation not implemented in this coord; plot may be wrong.",
+      call. = FALSE
+      )
     list(x = panel_params$x.range, y = panel_params$y.range)
   },
 
+  # deprecated, do not use or reimplement
+  # kept only for backwards compatibility
+  range = function(self, panel_params) {
+    warning(
+      "function `Coord$range()` is deprecated; use `Coord$backtransform_range()`.",
+      call. = FALSE
+    )
+    self$backtransform_range(panel_params)
+  }
+
   setup_panel_params = function(scale_x, scale_y, params = list()) {
     list()
   },