[gimp] etc: smaller default position and size of main image window.

[Jehan <jehanp src gnome org>]

commit b5298d067378e0dfba951bdd10320e5426826e80
Author: Jehan <jehan girinstud io>
Date:   Sun Sep 27 21:40:36 2020 +0200

    etc: smaller default position and size of main image window.
    
    Existing default was requesting a window of size 1024×768 at position
    (200,100). While it may seem a reasonable default on nowadays displays,
    it was not on some intermediate size displays which are considered HiPPI
    anyway.
    
    Taking my personal example, my screen is 2560×1440, which is considered
    HiPPI by GNOME 3 with a scale ratio of ×2. As a consequence, setting a
    size of 1024×768 was actually creating a window of 2048×1536, which is
    already higher than the screen. Worse, gtk_window_resize() resize the
    window without taking into consideration the title bar, which in my case
    added 74 pixels, so GIMP window started at 1610 pixels of height, much
    bigger than my screen size, hence unusable (and for some reason, with
    the title bar out of the screen so without knowing Super+click shortcut
    to move or Super+Up to maximize, people would have a hard time to resize
    or close GIMP).
    
    This issue only happens at the first launch of GIMP, when no user
    sessionrc exists yet. Once you resize yourself the main window, then
    restart GIMP, it is fine (as next times, it will use the user's
    sessionrc). Yet it is already a bad first impression.
    
    For temporary workaround, let's use a smaller 800×600 defaults (which
    will actually span on 1600×1200 pixels + decoration size on scale ratio
    ×2).
    
    Still I don't like using arbitrary numbers for window size default.
    As we see here, it can end up into all sort of weird result. Even more
    with all the scale ratio business which didn't exist back in GTK+2.
    Instead, the defaults should have no size, and our code should just
    resize to whatever makes the most sense on the current display, which I
    believe should likely be maximized. Unfortunately I have a hard time
    with gtk_window_maximize() which doesn't seem to do anything at all
    (does GNOME ignore _NET_WM_STATE_MAXIMIZE_* hints when requested by
    applications maybe?). So until we find the right system, let's go with
    this lower window size defaults at least.

 etc/sessionrc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/etc/sessionrc b/etc/sessionrc
index 6d7e9393f6..6d81d4ace7 100644
--- a/etc/sessionrc
+++ b/etc/sessionrc
@@ -11,8 +11,8 @@
     (size 640 480))
 (session-info "toplevel"
     (factory-entry "gimp-single-image-window")
-    (position 200 100)
-    (size 1024 768)
+    (position 0 0)
+    (size 800 600)
     (open-on-exit)
     (aux-info
         (left-docks-width "188")