[gtk/1422-gtkentry-s-minimum-width-is-hardcoded-to-150px] gtkentry: set minimum-width to 1 instead of 150

[Nelson Benítez León <nbenitez src gnome org>]

commit 0ab2d8c10c4d54d2369d8b2be85d088996f73d14
Author: Nelson Benítez León <nbenitezl gmail com>
Date:   Sun Oct 21 17:07:36 2018 +0500

    gtkentry: set minimum-width to 1 instead of 150
    
    and use 150 as natural-width.
    
    Currently there's no way for a GtkEntry to be less
    than 150px wide (apart from using "width-chars" property),
    this is too much for a default minimum-width, an app
    developer may need to have a shorter GtkEntry, for example
    when the UI it's been shrunk by the user (see [1]) or when
    you want to match the size of another widget (which is less
    than 150px) see [2] for Evince bug on using
    gtk_combo_box_new_with_model_and_entry() for PDF forms where
    GtkEntry of ComboBox is too wide and doesn't match the combo
    list width.
    
    Using "width-chars" is not a proper solution for these
    cases as you may not know how short your GtkEntry will be
    or the fact that using "chars" as a width size unit is not
    pixel accurate.
    
    Curious note: the commit that introduced the GtkEntry
    minimum-width to be 150px is from 20 years ago, see
    https://bit.ly/2ySEfK4
    
    [1] This change was already suggested by Benjamin Otte
    in a blog comment https://bit.ly/2J96wRo
    
    [2] Fixes issue evince#1002

 gtk/gtkentry.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkentry.c b/gtk/gtkentry.c
index 35995d84bb..302951e3c4 100644
--- a/gtk/gtkentry.c
+++ b/gtk/gtkentry.c
@@ -161,7 +161,8 @@
  * .insertion-cursor.
  */
 
-#define MIN_ENTRY_WIDTH  150
+#define MIN_ENTRY_WIDTH  1
+#define NAT_ENTRY_WIDTH  150
 
 #define MAX_ICONS 2
 
@@ -3599,7 +3600,7 @@ gtk_entry_measure (GtkCssGadget   *gadget,
         }
 
       if (priv->max_width_chars < 0)
-        nat = min;
+        nat = NAT_ENTRY_WIDTH;
       else
         nat = char_pixels * priv->max_width_chars;