new test with unchanging (almost) full intensity colors, to make it e…

…asier to spot them in binary data dumps

git-svn-id: https://xpra.org/svn/Xpra/trunk@16300 3bb7dfac-3a0b-4e04-842a-767bc560f471

src/tests/xpra/test_apps/colors_plain.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+
+import cairo
+import gi
+gi.require_version('Gtk', '3.0')    #@UndefinedVariable
+
+from gi.repository import Gtk, Gdk  #@UnresolvedImport
+
+class TransparentColorWindow(Gtk.Window):
+
+    def __init__(self):
+        super(TransparentColorWindow, self).__init__()
+        self.set_position(Gtk.WindowPosition.CENTER)
+        self.set_default_size(320, 320)
+        self.set_app_paintable(True)
+        self.set_events(Gdk.EventMask.KEY_PRESS_MASK)
+        self.connect("draw", self.area_draw)
+        self.connect("destroy", Gtk.main_quit)
+        self.show_all()
+
+    def area_draw(self, widget, cr):
+        cr.set_font_size(32)
+        #Clear everything:
+        cr.set_operator(cairo.OPERATOR_CLEAR)
+        w, h = widget.get_size()
+        cr.rectangle(0, 0, w, h)
+        cr.fill()
+
+        def paint_block(x, y, w, h, R=255, G=255, B=255, label=""):
+            cr.set_operator(cairo.OPERATOR_SOURCE)
+            cr.set_source_rgb(R, G, B)
+            cr.rectangle(x, y, w, h)
+            #print("rectangle(%s, %s, %s, %s) alpha=%s" % (rx, ry, rw, rh, alpha))
+            cr.fill()
+            if label:
+                cr.set_source_rgb(1, 1, 1)
+                cr.move_to(x+w/2-12, y+h/2+8)
+                cr.show_text(label)
+
+        #Red block
+        paint_block(0, 0, w/2, h/2, 255, 0, 0, "R")
+        #Green block:
+        paint_block(w/2, 0, w/2, h/2, 0, 254, 0, "G")
+        #Blue block:
+        paint_block(0, h/2, w/2, h/2, 0, 0, 253, "B")
+        #Black Shade Block:
+        paint_block(w/2, h/2, w/2, h/2, 128, 128, 128)
+
+import signal
+signal.signal(signal.SIGINT, lambda x,y : Gtk.main_quit)
+TransparentColorWindow()
+Gtk.main()