[Vm-dev] Re: [squeak-dev] Re: Packaging of 4.1 for Windows

[Bert Freudenberg]

On 28.03.2010, at 00:30, Chris Muller wrote:
> 
> 
> Does the VM compiler decide what icon bitmap is represented by the
> executable?  When running in Linux I get a Xterm icon, but it would be
> nice to be able to distinguish those from other Xterm sessions on the
> desktop.

No, by default the VM does not define an icon. On modern Linux desktops, window icons are not specified by the executable anymore. Instead, the desktop comes with a "theme" of colorful icons. Typically a "desktop entry" file is used to associate applications with icons. See
http://standards.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html
and ask your favorite distro packager for how they handle icons.

There still is some window icon support in the VM, but it has been unused for years. I found this in an old file - try putting the following into platforms/unix/vm-display-X11/squeakIcon.bitmap and undefine NO_ICON in sqUnixX11.c:

#define sqXIcon_width	32
#define sqXIcon_height	32
static char sqXIcon_bits[] = {
 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x00,0x00,0x0c,0x48,0x00,0x00,
 0x12,0x84,0x00,0x00,0x21,0x04,0x01,0x80,0x20,0x04,0x02,0x40,0x20,0x04,0x02,
 0x40,0x20,0x04,0x04,0x20,0x20,0x04,0x04,0x20,0x20,0x04,0x08,0x10,0x20,0x04,
 0x08,0x10,0x20,0x08,0x00,0x00,0x10,0x08,0x00,0x00,0x10,0x08,0x00,0x00,0x10,
 0x08,0x00,0x00,0x10,0x10,0x18,0x18,0x08,0x10,0x2c,0x2c,0x08,0x10,0x2c,0x2c,
 0x08,0x00,0x2c,0x2c,0x00,0x00,0x3c,0x3c,0x00,0x00,0x18,0x18,0x00,0x00,0x00,
 0x00,0x00,0x00,0x00,0x00,0x00,0xf8,0x0f,0xf0,0x1f,0x06,0xc0,0x03,0x60,0xe0,
 0xe7,0xe7,0x07,0x18,0xc0,0x03,0x18,0xc6,0x0f,0xf0,0x63,0x31,0x00,0x00,0x8c,
 0x08,0x00,0x00,0x10,0x00,0x00,0x00,0x00};

Recompiling should add an old-fashioned black-and-white icon to the window. But it's quite possible that modern window managers ignore this.

- Bert -