RE: Displaying simple HTML in gtkmm app (got it!)
Chris, I've since found out that embedded mozilla is a far easier solution to displaying HTML content, images, etc., than the gtkhtml library (Thanks Murray). So this issue is moot at present. Thanks for your response anyway. Erik. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris Vine Sent: Saturday, April 23, 2005 8:38 PM To: gtkmm-list@gnome.org Cc: [EMAIL PROTECTED] Subject: Re: Displaying simple HTML in gtkmm app (got it!) On Thursday 21 April 2005 19:06, [EMAIL PROTECTED] wrote: [snip] The other thing that I noticed about this way of implementing this is that you are limited to a single instance of a window that can render HTML. I was starting to create a C++ wrapper class, but found out that the lines: g_signal_connect( G_OBJECT( document ), request_url, G_CALLBACK( gtkhtml::url_requested ), NULL ); g_signal_connect( G_OBJECT( document ), link_clicked, G_CALLBACK( gtkhtml::link_clicked ), NULL ); are proving to be difficult to resolve. How would you connect gtk+ signals to a C++ class instance? That appears to be the question now, for me at least. I am not sure I have understood the question but if relates to making the callback aware of the class instance invoking the callback (say the one in whose constructor the call to g_signal_connect() was made) then pass the address of that instance (the this pointer) as the data argument, which is the last argument and is of type void*, thus: g_signal_connect( G_OBJECT( document ), request_url, G_CALLBACK(gtkhtml::url_requested ), this ); then gtkhtml::url_requested() would use static_cast() to cast its last argument back to a pointer of the relevant type. gtkhtml::url_requested() should have extern C linkage (and made a friend if it needs to have access to the class internals), but it looks as if it is a static class member function, which cannot have C linkage. Using a static member function will work with some compilers (eg g++) but not with others - it is implementation dependent. Chris. -- Summer is y-cumen in, lhude sing, cuccu! Groweth sed and bloweth med, springeth the wude nu. ___ gtkmm-list mailing list gtkmm-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtkmm-list ___ gtkmm-list mailing list gtkmm-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtkmm-list
problems with Glib::locale_from_utf8
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Greetings, I'm using libxml++ (which uses glibmm) to parse some XML, but am getting aborts every time my parser class calls it's on_characters callback and tries to display a word with a utf8 character. #6 0xb7e2d298 in Glib::ConvertError::throw_func (gobject=0x805f908) at convert.cc:305 #7 0xb7e38fe4 in Glib::Error::throw_exception (gobject=0x805f908) at error.cc:174 #8 0xb7e2ca7f in Glib::locale_from_utf8 ([EMAIL PROTECTED]) at convert.cc:192 #9 0xb7e49b9f in Glib::operator ([EMAIL PROTECTED], [EMAIL PROTECTED]) at ustring.cc:1202 #10 0x0804999e in XMLParser::on_characters (this=0xb120, [EMAIL PROTECTED]) at test.cc:32 Looks like locale_from_utf8 throws an exception if g_locale_from_utf8 returns an error (specifically G_CONVERT_ERROR_ILLEGAL_SEQUENCE). I thought maybe my utf8 setup was borked but I've got several other folks with supposedly working utf8 setups who were able to reproduce. This is probably more of a gtk-list question but I figured I'd ask here first. Anyone have an idea why this would be happening? Thanks - -- Kent's Heuristic: Look for it first where you'd most like to find it. Aaron Walker [EMAIL PROTECTED] [ BSD | cron | forensics | shell-tools | commonbox | netmon | vim | web-apps ] -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFCbQXWC3poscuANHARAuNGAKCP8fQfVYB2QGlWxeYviR/wm8xHMQCfQnK9 r62Hah3WcbisPKlPCWrCLgA= =20ng -END PGP SIGNATURE- ___ gtkmm-list mailing list gtkmm-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtkmm-list
Re: new_from_stock
Hi Folks,
I've realized that glade handles this situation well. So I put a
button with a label in glade and let it generate C code for me. It
seems that it is using the button with an HBox (maybe this is a
workaround for the problem), i.e. it is adding an image and a label
separately. It is also using alignment, however I don't need it. So my
code now looks like this, and works as intended. Sending list for the
people having the same problem:
class New_Button: public Gtk::ToggleButton {
public:
New_Button(const Glib::ustring text)
: Gtk::ToggleButton(),
img_(Gtk::StockID(gtk-add),
Gtk::IconSize(Gtk::ICON_SIZE_BUTTON)),
lbl_(text)
{
setup_box();
}
protected:
void setup_box()
{
img_.show();
lbl_.show();
box_.pack_start(img_);
box_.pack_Start(lbl_);
box_.show();
this-add(box_);
}
private:
Gtk::Image img_;
Gtk::Label lbl_;
Gtk::HBox box_;
};
Thanks for your helps,
emre
On Sun, Apr 24, 2005 at 03:19:15PM +0200, Murray Cumming wrote:
On Sat, 2005-04-23 at 12:57 -0500, Emre Turkay wrote:
Hi Folks,
In the gtkmm documentation for Gtk::Image (and therefore in some .h
files distributed with gtkmm) the method Gtk::Image::new_from_stock()
is referred, however I couldn't find where it is defined (i.e., I
'grep'ed the /usr/include/gtkmm-2.0 directory and couldn't find it.)
What may be wrong?
The documenation is partly automatically generated from the C API's
documentation, and this new part (in 2.6) was not correctly transformed.
I've fixed it now.
--
Murray Cumming
[EMAIL PROTECTED]
www.murrayc.com
www.openismus.com
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Re: problems with Glib::locale_from_utf8
On Mon, 2005-04-25 at 10:59 -0400, Aaron Walker wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Greetings, I'm using libxml++ (which uses glibmm) to parse some XML, but am getting aborts every time my parser class calls it's on_characters callback and tries to display a word with a utf8 character. Do you have the latest libxml++? We fixed a UTF8 bytes/characters confusion recently. -- Murray Cumming [EMAIL PROTECTED] www.murrayc.com www.openismus.com ___ gtkmm-list mailing list gtkmm-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtkmm-list
rgb number scheme
gtkmm uses the gdk color r_g_b numbering scheme that goes from 0-65535 instead of the more normal 0-255. Can anyone explain what the 65535 is based on. I'm guess we have to divide all our color numbers and use set_rgb_p(...) - I'm wondering why there isn't a set_rgb method for using the normal 0-255 range. ___ gtkmm-list mailing list gtkmm-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtkmm-list
