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Canvas troubleshooting: Difference between revisions
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→Modifying the Property Browser to show a Canvas preview
m (→Adding draw masks for Canvas: http://forum.flightgear.org/viewtopic.php?f=5&t=23781&p=231142&hilit=masks#p231142) |
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[[File:PropertyBrowser with Canvas Preview.png|thumb|Slightly extended Property Browser to show a preview for each Canvas for troubleshooting/debugging purposes, as per [http://forum.flightgear.org/viewtopic.php?f=71&t=21139&start=75#p195232].]] | [[File:PropertyBrowser with Canvas Preview.png|thumb|Slightly extended Property Browser to show a preview for each Canvas for troubleshooting/debugging purposes, as per [http://forum.flightgear.org/viewtopic.php?f=71&t=21139&start=75#p195232].]] | ||
You can also create a Canvas dialog showing a preview of all active Canvas textures using 10-15 lines of code, for example see: | |||
<syntaxhighlight lang="nasal">var (width, height) = (640,480); | |||
var window = canvas.Window.new([width,height],"dialog"); | |||
var myCanvas = window.createCanvas().set("background", canvas.style.getColor("bg_color")); | |||
var root = myCanvas.createGroup(); | |||
var (x,y) = (30,30); | |||
var size = 128; | |||
var padding = 30; | |||
foreach(var c; props.globals.getNode('canvas/by-index').getChildren('texture') ) { | |||
if (c.getPath() == myCanvas.getPath()) continue; # skip own Canvas | |||
var child=root.createChild("image") | |||
.setFile( 'canvas://'~c.getPath() ) | |||
.setTranslation(x,y) | |||
.setSize(128,128); | |||
x += size + padding; | |||
if (x >= width) { | |||
y += size; | |||
x = padding; | |||
} | |||
} | |||
</syntaxhighlight> | |||
=== Inspecting a Canvas Group === | === Inspecting a Canvas Group === | ||