好的，所以我试图在图像上覆盖打印机的图片（平面图的蓝图）。我最初看的是pixmaps，但是在GTK 3.0中找不到任何关于它们的东西（发现如何在pygtk中使用它们，但不是一回事）。无论如何，这就是我现在所拥有的（我忘记了我认为是我的代码中无关紧要的部分。此外，程序构建正常，但我没有看到任何图像叠加） ：
import cairo
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, Gdk, GdkPixbuf
class ClientGUI:
def build_interface(self):
# Window
self.window = Gtk.Window(Gtk.WindowType.TOPLEVEL, title="SG Print Assist")
self.window.add(self.topbox)
self.window.set_name('window')
self.window.show()
self.hbox = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=6)
# Department combobox; calls a function from another py file that retrieves the model to use. In my program there are two other combo boxes that are dependent on this one.
self.department_combo = Gtk.ComboBox.new_with_model_and_entry(self.logic.get_department_store())
self.department_combo.connect("changed", self.on_department_combo_changed)
self.department_combo.set_entry_text_column(0)
self.hbox.pack_start(self.department_combo, False, False, 0)
self.department_combo.show()
self.hbox.show()
# Image; will change to different images (floor plans) based on user input into combobox
self.image = Gtk.Image()
self.image.set_from_file("pics/City Logo.jpg")
self.image.show()
# XPM; This isn't a printer, but for testing purposes it really doesn't matter.
printer_xpm = [
"48 48 64 1",
" c None",
". c #DF7DCF3CC71B",
"X c #965875D669A6",
"o c #71C671C671C6",
"O c #A699A289A699",
"+ c #965892489658",
"@ c #8E38410330C2",
"# c #D75C7DF769A6",
"$ c #F7DECF3CC71B",
"% c #96588A288E38",
"& c #A69992489E79",
"* c #8E3886178E38",
"= c #104008200820",
"- c #596510401040",
"; c #C71B30C230C2",
": c #C71B9A699658",
"> c #618561856185",
", c #20811C712081",
"< c #104000000000",
"1 c #861720812081",
"2 c #DF7D4D344103",
"3 c #79E769A671C6",
"4 c #861782078617",
"5 c #41033CF34103",
"6 c #000000000000",
"7 c #49241C711040",
"8 c #492445144924",
"9 c #082008200820",
"0 c #69A618611861",
"q c #B6DA71C65144",
"w c #410330C238E3",
"e c #CF3CBAEAB6DA",
"r c #71C6451430C2",
"t c #EFBEDB6CD75C",
"y c #28A208200820",
"u c #186110401040",
"i c #596528A21861",
"p c #71C661855965",
"a c #A69996589658",
"s c #30C228A230C2",
"d c #BEFBA289AEBA",
"f c #596545145144",
"g c #30C230C230C2",
"h c #8E3882078617",
"j c #208118612081",
"k c #38E30C300820",
"l c #30C2208128A2",
"z c #38E328A238E3",
"x c #514438E34924",
"c c #618555555965",
"v c #30C2208130C2",
"b c #38E328A230C2",
"n c #28A228A228A2",
"m c #41032CB228A2",
"M c #104010401040",
"N c #492438E34103",
"B c #28A2208128A2",
"V c #A699596538E3",
"C c #30C21C711040",
"Z c #30C218611040",
"A c #965865955965",
"S c #618534D32081",
"D c #38E31C711040",
"F c #082000000820",
" ",
" .XoO ",
" +@#$%o& ",
" *=-;#::o+ ",
" >,<12#:34 ",
" 45671#:X3 ",
" +89<02qwo ",
"e* >,67;ro ",
"ty> 459@>+&& ",
"$2u+ ><ipas8* ",
"%$;=* *3:.Xa.dfg> ",
"Oh$;ya *3d.a8j,Xe.d3g8+ ",
" Oh$;ka *3d$a8lz,,xxc:.e3g54 ",
" Oh$;kO *pd$%svbzz,sxxxxfX..&wn> ",
" Oh$@mO *3dthwlsslszjzxxxxxxx3:td8M4 ",
" Oh$@g& *3d$XNlvvvlllm,mNwxxxxxxxfa.:,B* ",
" Oh$@,Od.czlllllzlmmqV@V#V@fxxxxxxxf:%j5& ",
" Oh$1hd5lllslllCCZrV#r#:#2AxxxxxxxxxcdwM* ",
" OXq6c.%8vvvllZZiqqApA:mq:Xxcpcxxxxxfdc9* ",
" 2r<6gde3bllZZrVi7S@SV77A::qApxxxxxxfdcM ",
" :,q-6MN.dfmZZrrSS:#riirDSAX@Af5xxxxxfevo",
" +A26jguXtAZZZC7iDiCCrVVii7Cmmmxxxxxx%3g",
" *#16jszN..3DZZZZrCVSA2rZrV7Dmmwxxxx&en",
" p2yFvzssXe:fCZZCiiD7iiZDiDSSZwwxx8e*>",
" OA1<jzxwwc:$d%NDZZZZCCCZCCZZCmxxfd.B ",
" 3206Bwxxszx%et.eaAp77m77mmmf3&eeeg* ",
" @26MvzxNzvlbwfpdettttttttttt.c,n& ",
" *;16=lsNwwNwgsvslbwwvccc3pcfu<o ",
" p;<69BvwwsszslllbBlllllllu<5+ ",
" OS0y6FBlvvvzvzss,u=Blllj=54 ",
" c1-699Blvlllllu7k96MMMg4 ",
" *10y8n6FjvllllB<166668 ",
" S-kg+>666<M<996-y6n<8* ",
" p71=4 m69996kD8Z-66698&& ",
" &i0ycm6n4 ogk17,0<6666g ",
" N-k-<> >=01-kuu666> ",
" ,6ky& &46-10ul,66, ",
" Ou0<> o66y<ulw<66& ",
" *kk5 >66By7=xu664 ",
" <<M4 466lj<Mxu66o ",
" *>> +66uv,zN666* ",
" 566,xxj669 ",
" 4666FF666> ",
" >966666M ",
" oM6668+ ",
" *4 ",
" ",
" "
]
# Pixbuf; the printer image I'm trying to overlay on the image. Will probably create a class to represent the printer objects overlaying which contains position member variables. Will then make a list of these to overlay all of them over the image at different positions.
pixbuf = GdkPixbuf.Pixbuf.new_from_xpm_data(printer_xpm)
w, h = pixbuf.get_width(), pixbuf.get_height()
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, w, h)
context = cairo.Context(surface)
Gdk.cairo_set_source_pixbuf(context, pixbuf, 100, 100)
context.paint()
非常感谢任何帮助。感谢。