I don't understand why panzoomarea.h (and I suppose also panzoomarea.cc)
is broken. Don't you get any kind of warning or error message? Probably
your gmmproc-command can be made much shorter:
/usr/lib/x86_64-linux-gnu/glibmm-2.4/proc/gmmproc -I
/usr/lib/x86_64-linux-gnu/gtkmm-3.0/proc/m4 panzoomarea mm mm
But I don't expect that to make a difference.
You can add a --debug argument to the gmmproc command. Some temporary
files are then saved. You will probably find them in the /tmp directory.
Kjell
On 2020-05-03 02:07, Josh Bialkowski wrote:
Thanks Kjell, you have a good eye. I tried making the change to
`_CLASS_GTKOBJECT` but I'm not sure what else needs to change. On my
system `class_gtkobject.m4` is installed at
`/usr/lib/x86_64-linux-gnu/gtkmm-3.0/proc/m4`, so I tried the
following execution of gmmproc but the generated .h file is mostly empty:
~~~
M4PATH=/usr/lib/x86_64-linux-gnu/gtkmm-3.0/proc/m4:/usr/lib/x86_64-linux-gnu/glibmm-2.4/proc/m4
/usr/lib/x86_64-linux-gnu/glibmm-2.4/proc/gmmproc -I
/usr/lib/x86_64-linux-gnu/glibmm-2.4/proc/m4 -I
/usr/lib/x86_64-linux-gnu/gtkmm-3.0/proc/m4 panzoomarea mm mm
~~~
The generated `panzoomarea.h` looks broken:
~~~
// Generated by gmmproc 2.56.0 -- DO NOT MODIFY!
#ifndef _TANGENT_GTKUTIL_MM_PANZOOMAREA_H
#define _TANGENT_GTKUTIL_MM_PANZOOMAREA_H
#include <glibmm/ustring.h>
#include <sigc++/sigc++.h>
// clang-format off
// clang-format on
#include <glibmm.h>
#include <gtkmm/drawingarea.h>
namespace Gtk {
#endif /* _TANGENT_GTKUTIL_MM_PANZOOMAREA_H */
~~~
here is the full `panzoomarea.hg`:
~~~
// clang-format off
_DEFS(tangent/gtkutil/mm, tangent)
_PINCLUDE(gtkmm/private/drawingarea_p.h)
_PINCLUDE(tangent/gtkutil/mm/private/hack.h)
// clang-format on
#include <glibmm.h>
#include <gtkmm/drawingarea.h>
namespace Gtk {
class PanZoomArea : public Gtk::DrawingArea {
_CLASS_GTKOBJECT(PanZoomArea, GtkPanZoomArea, GTK_PANZOOM_AREA,
Gtk::DrawingArea, GtkDrawingArea)
public:
_CTOR_DEFAULT
public:
// _WRAP_METHOD(void get_offset(double offset[2]),
gtk_panzoom_area_set_offset);
// _WRAP_METHOD(void get_offset(double offset[2]),
gtk_panzoom_area_set_offset);
_WRAP_METHOD(double get_scale(), gtk_panzoom_area_get_scale);
_WRAP_METHOD(void set_scale(double scale), gtk_panzoom_area_set_scale);
_WRAP_METHOD(double get_scale_rate(), gtk_panzoom_area_get_scale_rate);
_WRAP_METHOD(void set_scale_rate(double rate),
gtk_panzoom_area_set_scale_rate);
// TODO(josh): can't wrap a signal whose default handler has a different
// name than the name of the signal.
_WRAP_SIGNAL(bool area_motion(GdkEventMotion* event), "area-motion");
_WRAP_SIGNAL(bool area_button(GdkEventButton* event), "area-button");
// clang-format off
#m4 _CONVERSION(`CairoContext*',`const ::Cairo::RefPtr<
::Cairo::Context>&',`::Cairo::RefPtr< ::Cairo::Context>(new
::Cairo::Context($3, false /* has_reference */))')
#m4 _CONVERSION(`const ::Cairo::RefPtr<
::Cairo::Context>&',`CairoContext*',`($3)->cobj()')
_WRAP_SIGNAL(bool area_draw(const ::Cairo::RefPtr<
::Cairo::Context>& cr),
"area-draw");
// clang-format on
_WRAP_PROPERTY("offset-x-adjustment", Glib::RefPtr<Gtk::Adjustment>);
_WRAP_PROPERTY("offset-y-adjustment", Glib::RefPtr<Gtk::Adjustment>);
_WRAP_PROPERTY("scale-adjustment", Glib::RefPtr<Gtk::Adjustment>);
_WRAP_PROPERTY("scale-rate-adjustment", Glib::RefPtr<Gtk::Adjustment>);
_WRAP_PROPERTY("active", bool);
_WRAP_PROPERTY("pan-button", int);
_WRAP_PROPERTY("demo-draw-enabled", bool);
};
} // namespace Gtk
~~~
Is there something else I need to make the `_CLASS_GTKOBJECT` macro work?
Thanks for the help,
Josh
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