It works in the work of art!
Great! Thank you for your patience(goodwill).
I will try not to forget (I have some gaps)
I tried both methods(reference, pointer). They work very well.
Thank you again for your help.
Have a good day
2013/6/10 Kjell Ahlstedt <kjell.ahlst...@bredband.net>
> I think this will work:
>
>
> void MyOptionGroup::add_entry(const Glib::OptionEntry& entry,
> Gdk::Rectangle& arg) {
> Glib::OptionGroup::add_entry(entry, sigc::bind(sigc::mem_fun(*this,
> &MyOptionGroup::on_option_arg_rectangle), sigc::ref(arg)));
>
> }
>
> bool MyOptionGroup::on_option_arg_rectangle(const Glib::ustring&
> option_name,
> const Glib::ustring& value, bool has_value, Gdk::Rectangle& arg)
> {
> bool success = true;
> // parse value to Gdk::Rectangle rect(0, 0, 600, 400);
>
> // How I can set MyOptionGroup->m_arg_box ?
> arg = rect;
> return success;
> }
>
> There are some restrictions on how you can use references with
> sigc::bind(). If you can't get it to work, try pointers instead:
>
> void MyOptionGroup::add_entry(const Glib::OptionEntry& entry,
> Gdk::Rectangle* arg) {
> Glib::OptionGroup::add_entry(entry, sigc::bind(sigc::mem_fun(*this,
> &MyOptionGroup::on_option_arg_rectangle), arg));
>
> }
>
> bool MyOptionGroup::on_option_arg_rectangle(const Glib::ustring&
> option_name,
> const Glib::ustring& value, bool has_value, Gdk::Rectangle* arg)
> {
> bool success = true;
> // parse value to Gdk::Rectangle rect(0, 0, 600, 400);
>
> // How I can set MyOptionGroup->m_arg_box ?
> *arg = rect;
> return success;
> }
>
>
> 2013-06-10 17:51, Maggio Mago skrev:
>
> Thanks for you reply. Excuse me, I was not specific enough.
> My problem is about store the parse result in MyOptionGroup object.
>
> Yes:) MyOptionGroup::m_arg_box is a Gdk::Rectangle.
>
> What bothers me with the example you showed me is that I need to create a
> new function for each options of type Gdk::Rectangle. I wish I do like
> add_entry(..., bool & arg), ..., add_entry (..., int & arg) functions : The
> value of the option is parsed and assigned to my object MyObjectGroup on
> the fly.
>
> My command is:
> $] prog --box-in="0 0300400" --box-out = "0 0150200"
>
> Simply put, I'd avoid making comparisons with the names of options. So no:
> if (option_name = "-o" && option_name =! "--box-out")
>
>
>
>
> I looked at the source code of Glib :: OptionGroup and I came to this code
> below:
>
> void OptionGroup :: add_entry (const Glib::OptionEntry & entry, Gdk::
> Rectangle & arg)
> {
> SlotOptionArgString slot = sigc :: mem_fun (* this, & OptionGroup::
> on_option_arg_rectangle);
> Glib::OptionGroup add_entry (entry, slot);
> }
>
> OptionGroup on_option_arg_rectangle :: bool (const Glib::ustring &
> option_name, const Glib::ustring & value, bool has_value)
> {
> bool success = true;
> OptionGroup type_map_entries::const_iterator iterFind
> map_entries_.end = ();
> if (option_name [1] == '-')
> {
> const Glib::ustring long_option_name = Glib::ustring (
> option_name.c_str () +2);
> iterFind map_entries_.find = (long_option_name);
>
> Glib::OptionGroup CppOptionEntry iterFind = entry-> second;
> Gdk::Rectangle * arg = static_cast <Gdk::Rectangle*> (entry.cpparg_
> );
> arg-> set_x (100);// <-- SegFault
>
> }
> return success;
> }
>
> In this way, I can use this code for each option Rectangle kind.
> Unfortunately I have a segfault on arg->set_x (100);
> I got the wrong way.
>
>
>
> Do you know how I need to do to achieve this ?
>
>
>
> PS : If I'm misunderstanding do not hesitate to tell me
>
>
> 2013/6/10 Kjell Ahlstedt <kjell.ahlst...@bredband.net>
>
>> Perhaps the glibmm example program at
>> https://git.gnome.org/browse/glibmm/tree/examples/options/main.cc can
>> help you.
>>
>> MyOptionGroup::add_entry() is unnecessary. You can call
>> Glib::OptionGroup::add_entry() directly. Or, if you prefer to keep
>> MyOptionGroup::add_entry(), the argument Gdk::Rectangle& arg is
>> unnecessary. You don't use it, anyway.
>>
>> I don't see any problem in MyOptionGroup::on_option_arg_rectangle(). I
>> suppose MyOptionGroup::m_arg_box is a Gdk::Rectangle. If rect is a local
>> Gdk::Rectangle in MyOptionGroup::on_option_arg_rectangle(), you can just
>> assign "m_arg_box = rect;" once you have decoded the string 'value' and
>> stored the result in 'rect'.
>>
>> Have I misunderstood you? Probably, because I don't see what's the
>> problem.
>>
>> Kjell
>>
>> 2013-06-10 14:57, Maggio Mago skrev:
>>
>> Hello all,
>>
>> I have a command line with an option "box" than is a Rectangle:
>> I would like to do :
>> $] prog --box="0 0 600 400"
>> Instead of :
>> $] prog --box-x="0" --box-y="0" --box-width="600" --box-height="400"
>>
>>
>> I wrote my programme in Gtkmm, so I have subclassed Glib::OptionGroup
>> and add this function :
>>
>> void MyOptionGroup::add_entry(const Glib::OptionEntry& entry,
>> Gdk::Rectangle& arg) {
>> Glib::OptionGroup::add_entry(entry, sigc::mem_fun(*this,
>> &OptionGroup::on_option_arg_rectangle));
>>
>> }
>> bool MyOptionGroup::on_option_arg_rectangle(const Glib::ustring&
>> option_name, const Glib::ustring& value, bool has_value)
>> {
>> bool succes = true;
>> // parse value to Gdk::Rectangle(0, 0, 600, 400);
>> // How I can set MyOptionGroup->m_arg_box ?
>> return succes;
>> }
>>
>> How to store the parsed value in the function on_option_rectangle()
>>
>>
>> PS : I tried to show you the code that I did but maybe I have it all
>> wrong
>>
>>
>>
>>
>>
>
>
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