id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
12495	[patch] mappaint support for HIDPI screens	Klumbumbus	team	"More and more users have HIDPI screens (see e.g. [http://forum.openstreetmap.org/viewtopic.php?id=53508 recent german forum thread]).

While #9995 is about the general HIDPI support, I propose the following solution for the mapview for now, which allows to scale the nodes and text size by the following two josm preference keys:
 * `node-size-factor`
 * `font-size-summand`

Unfortunately I don't have a monitor to test. According to the linked thread the icon size is ok on a 4k screen, so I didn't touch it for now. (edit: see ticket:9995#comment:15 should `iconsize.map` change the iconsize in the mapview? This does not work for me.)


{{{
#!diff
--- styles/standard/elemstyles.mapcss
+++ styles/standard/elemstyles.mapcss
@@ -16,6 +16,9 @@
     default-points: false;
 }
 
+* {
+    font-size-summand: JOSM_pref(""font-size-summand"", 0);
+}
 /*************************/
 /* create style settings */
 /*************************/
@@ -4939,7 +4942,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -4972,7 +4975,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -4984,7 +4987,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -4996,7 +4999,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -5008,7 +5011,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -5020,7 +5023,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -5032,7 +5035,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -5044,7 +5047,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -5056,7 +5059,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -5068,7 +5071,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -5079,7 +5082,7 @@
 node|z-14[place=locality][!setting(""hide_icons"")] {
     icon-image: ""place/locality.png"";
     text: auto;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -5090,7 +5093,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -5101,7 +5104,7 @@
     set icon_z0;
     text: auto;
     set text_z0;
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
     font-weight: bold;
     text-color:black;
     text-halo-color: white;
@@ -5160,11 +5163,12 @@
 
 node {
     text: auto;
+    node-size-factor: JOSM_pref(""node-size-factor"", 1);
 }
 node|z-16[setting(""hide_icons"")],
 node|z17-[!is_prop_set(""icon-image"")][setting(""hide_icons"")]!.maxspeedclass,
 node[!is_prop_set(""icon-image"")][!setting(""hide_icons"")]!.maxspeedclass {
-    symbol-size: 2;
+    symbol-size: 2 * prop(""node-size-factor"");
     symbol-shape: square;
     symbol-stroke-color: node_standard#ffff00;
     major-z-index: 4.95; /* put node squares above line text */
@@ -5180,27 +5184,27 @@
     symbol-fill-color: node_tagged#00ffff;
 }
 
-way > node|z16[setting(""shrink_nodes"")]!:tagged { symbol-size: 1; }
+way > node|z16[setting(""shrink_nodes"")]!:tagged { symbol-size: 1 * prop(""node-size-factor""); }
 
-node|z17[setting(""shrink_nodes"")]               { symbol-size: 4; }
-way > node|z17[setting(""shrink_nodes"")]         { symbol-size: 2; }
-node|z17[setting(""shrink_nodes"")]:connection    { symbol-size: 4; }
-
-node|z18[setting(""shrink_nodes"")]               { symbol-size: 4; }
-way > node|z18[setting(""shrink_nodes"")]         { symbol-size: 3; }
-node|z18[setting(""shrink_nodes"")]:connection    { symbol-size: 5; }
-
-node|z19-[setting(""shrink_nodes"")]              { symbol-size: 4; }
-way > node|z19-[setting(""shrink_nodes"")]        { symbol-size: 4; }
-node|z19-[setting(""shrink_nodes"")]:connection   { symbol-size: 6; }
-
-node[!setting(""shrink_nodes"")]                  { symbol-size: 4; }
-way > node[!setting(""shrink_nodes"")]            { symbol-size: 4; }
-node[!setting(""shrink_nodes"")]:connection       { symbol-size: 6; }
+node|z17[setting(""shrink_nodes"")]               { symbol-size: 4 * prop(""node-size-factor""); }
+way > node|z17[setting(""shrink_nodes"")]         { symbol-size: 2 * prop(""node-size-factor""); }
+node|z17[setting(""shrink_nodes"")]:connection    { symbol-size: 4 * prop(""node-size-factor""); }
+
+node|z18[setting(""shrink_nodes"")]               { symbol-size: 4 * prop(""node-size-factor""); }
+way > node|z18[setting(""shrink_nodes"")]         { symbol-size: 3 * prop(""node-size-factor""); }
+node|z18[setting(""shrink_nodes"")]:connection    { symbol-size: 5 * prop(""node-size-factor""); }
+
+node|z19-[setting(""shrink_nodes"")]              { symbol-size: 4 * prop(""node-size-factor""); }
+way > node|z19-[setting(""shrink_nodes"")]        { symbol-size: 4 * prop(""node-size-factor""); }
+node|z19-[setting(""shrink_nodes"")]:connection   { symbol-size: 6 * prop(""node-size-factor""); }
+
+node[!setting(""shrink_nodes"")]                  { symbol-size: 4 * prop(""node-size-factor""); }
+way > node[!setting(""shrink_nodes"")]            { symbol-size: 4 * prop(""node-size-factor""); }
+node[!setting(""shrink_nodes"")]:connection       { symbol-size: 6 * prop(""node-size-factor""); }
 
 node:selected {
     symbol-shape: square;
-    symbol-size: 6;
+    symbol-size: 6 * prop(""node-size-factor"");
     symbol-fill-color: node_selected#ff0000;
     symbol-stroke-color: node_selected#ff0000;
 }
@@ -5216,8 +5220,10 @@
     text: auto;
 }
 
-node|z19,area|z19   { font-size: 9; }
-node|z20-,area|z20-   { font-size: 10; }
+node|z-18,area|z-18 { font-size: 8 + prop(""font-size-summand""); }
+node|z19,area|z19   { font-size: 9 + prop(""font-size-summand""); }
+node|z20-,area|z20- { font-size: 10 + prop(""font-size-summand""); }
+
 
 /*******************/
 /* way text labels */
@@ -5246,7 +5252,7 @@
 way|z17-[highway=road][setting(""highway_labels"")] {
     text: auto;
     text-color: black;
-    font-size: 9;
+    font-size: 9 + prop(""font-size-summand"");
     text-position: line;
     text-halo-opacity: 1;
     text-halo-radius: 1.5;
@@ -5310,13 +5316,13 @@
     text-halo-color: service#809bc0;
 }
 way|z18[highway][setting(""highway_labels"")] {
-    font-size: 10;
+    font-size: 10 + prop(""font-size-summand"");
 }
 way|z19[highway][setting(""highway_labels"")] {
-    font-size: 11;
+    font-size: 11 + prop(""font-size-summand"");
 }
 way|z20-[highway][setting(""highway_labels"")] {
-    font-size: 12;
+    font-size: 12 + prop(""font-size-summand"");
 }
 
 /*************/

}}}
"	enhancement	closed	normal		External mappaint style		fixed	hidpi	bastiK