49 lines
1.8 KiB
Plaintext
49 lines
1.8 KiB
Plaintext
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The script src/run-metacity.sh is useful to hack on the window manager.
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It runs metacity in an Xnest. e.g.:
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CLIENTS=3 ./run-metacity.sh
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or
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DEBUG=memprof ./run-metacity.sh
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or whatever.
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src/window.c is where all the guts of the window manager live. This is
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basically the only remotely scary file.
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src/frames.c is the GtkWidget that handles drawing window frames.
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src/core.h defines the interface used by the GTK portion of the window
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manager to talk to the other portions. There's some cruft in here
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that's unused, since nearly all window operations have moved out of
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this file so frameless apps can have window operations.
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src/ui.h defines the interface the plain Xlib portion of the window
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manager uses to talk to the GTK portion.
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Files that include gdk.h or gtk.h are not supposed to include
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display.h or window.h or other core files.
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Files in the core (display.[hc], window.[hc]) are not supposed to
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include gdk.h or gtk.h.
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When hacking, remember that you can have multiple screens. The code is
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also written to support multiple displays, but this is useless, since
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you can just run two copies of the WM. Also, an XKillClient() or
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shutdown on any display causes Xlib to exit the app, so it would be
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broken. So the multi-display thing is mostly just for code
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cleanliness. Multi-screen on the other hand is important for some
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people.
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Remember that strings stored in X properties are not in UTF-8, and
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they have to end up in UTF-8 before we try putting them through Pango.
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If you make any X request involving a client window, you have to
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meta_error_trap_push() around the call; this is not necessary for
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X requests on the frame windows.
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Remember that not all windows have frames, and window->frame can
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be NULL.
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The code could use cleanup in a lot of places, feel free to do so.
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