To: vim_dev@googlegroups.com
Subject: Patch 8.1.0249
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
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------------

Patch 8.1.0249
Problem:    GTK: when screen DPI changes Vim does not handle it.
Solution:   Handle the gtk-xft-dpi signal. (Roel van de Kraats,
            closes #2357)
Files:	    src/gui_gtk_x11.c


*** ../vim-8.1.0248/src/gui_gtk_x11.c	2018-04-14 13:54:46.000000000 +0200
--- src/gui_gtk_x11.c	2018-08-07 20:00:51.725991750 +0200
***************
*** 788,793 ****
--- 788,816 ----
  }
  #endif /* defined(FEAT_CLIENTSERVER) */
  
+ /*
+  * Handle changes to the "Xft/DPI" setting
+  */
+     static void
+ gtk_settings_xft_dpi_changed_cb(GtkSettings *gtk_settings UNUSED,
+                                 GParamSpec *pspec UNUSED,
+                                 gpointer data UNUSED)
+ {
+     // Create a new PangoContext for this screen, and initialize it
+     // with the current font if necessary.
+     if (gui.text_context != NULL)
+ 	g_object_unref(gui.text_context);
+ 
+     gui.text_context = gtk_widget_create_pango_context(gui.mainwin);
+     pango_context_set_base_dir(gui.text_context, PANGO_DIRECTION_LTR);
+ 
+     if (gui.norm_font != NULL)
+     {
+ 	// force default font
+ 	gui_mch_init_font(*p_guifont == NUL ? NULL : p_guifont, FALSE);
+ 	gui_set_shellsize(TRUE, FALSE, RESIZE_BOTH);
+     }
+ }
  
  #if GTK_CHECK_VERSION(3,0,0)
  typedef gboolean timeout_cb_type;
***************
*** 4383,4388 ****
--- 4406,4420 ----
      /* Pretend we don't have input focus, we will get an event if we do. */
      gui.in_focus = FALSE;
  
+     // Handle changes to the "Xft/DPI" setting.
+     {
+ 	GtkSettings *gtk_settings =
+ 			 gtk_settings_get_for_screen(gdk_screen_get_default());
+ 
+ 	g_signal_connect(gtk_settings, "notify::gtk-xft-dpi",
+ 			   G_CALLBACK(gtk_settings_xft_dpi_changed_cb), NULL);
+     }
+ 
      return OK;
  }
  
*** ../vim-8.1.0248/src/version.c	2018-08-07 19:47:46.746434541 +0200
--- src/version.c	2018-08-07 19:59:06.534596911 +0200
***************
*** 796,797 ****
--- 796,799 ----
  {   /* Add new patch number below this line */
+ /**/
+     249,
  /**/

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 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
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