To write an Elementary app, you can get started with the following:
To write an Elementary app, you can get started with the following:
#include <Elementary.h>
EAPI_MAIN int
elm_main(int argc, char **argv)
{
return 0;
}
#define ELM_MAIN()
macro to be used after the elm_main() function
Definition elm_general.h:556
void elm_run(void)
Run Elementary's main loop.
Definition elm_main.c:1357
To use autotools (which helps in many ways in the long run, like being able to immediately create releases of your software directly from your tree and ensure everything needed to build it is there) you will need a configure.ac, Makefile.am and autogen.sh file.
configure.ac:
AC_INIT(myapp, 0.0.0, myname@mydomain.com)
AC_PREREQ(2.52)
AC_CONFIG_SRCDIR(configure.ac)
AM_CONFIG_HEADER(config.h)
AC_PROG_CC
AM_INIT_AUTOMAKE(1.6 dist-bzip2)
PKG_CHECK_MODULES([ELEMENTARY], elementary)
AC_OUTPUT(Makefile)
Makefile.am:
AUTOMAKE_OPTIONS = 1.4 foreign
MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.h.in configure depcomp install-sh missing
INCLUDES = -I$(top_srcdir)
bin_PROGRAMS = myapp
myapp_SOURCES = main.c
myapp_LDADD = @ELEMENTARY_LIBS@
myapp_CFLAGS = @ELEMENTARY_CFLAGS@
autogen.sh:
#!/bin/sh
echo "Running aclocal..." ; aclocal $ACLOCAL_FLAGS || exit 1
echo "Running autoheader..." ; autoheader || exit 1
echo "Running autoconf..." ; autoconf || exit 1
echo "Running automake..." ; automake --add-missing --copy --gnu || exit 1
./configure "$@"
To generate all the things needed to bootstrap just run:
This will generate Makefile.in's, the configure script and everything else. After this it works like all normal autotools projects:
./configure
make
sudo make install
Note sudo was assumed to get root permissions, as this would install in /usr/local which is system-owned. Use any way you like to gain root, or specify a different prefix with configure:
./configure --prefix=$HOME/mysoftware
Also remember that autotools buys you some useful commands like:
This uninstalls the software after it was installed with "make install". It is very useful to clear up what you built if you wish to clean the system.
This firstly checks if your build tree is "clean" and ready for distribution. It also builds a tarball (myapp-0.0.0.tar.gz) that is ready to upload and distribute to the world, that contains the generated Makefile.in's and configure script. The users do not need to run autogen.sh - just configure and on. They don't need autotools installed. This tarball also builds cleanly, has all the sources it needs to build included (that is sources for your application, not libraries it depends on like Elementary). It builds cleanly in a buildroot and does not contain any files that are temporarily generated like binaries and other build-generated files, so the tarball is clean, and no need to worry about cleaning up your tree before packaging.
This cleans up all build files (binaries, objects etc.) from the tree.
This cleans out all files from the build and from configure's output too.
This deletes all the files autogen.sh will produce so the tree is clean to be put into a revision-control system (like CVS, SVN or GIT for example).
There is a more advanced way of making use of the quicklaunch infrastructure in Elementary (which will not be covered here due to its more advanced nature).
Now let's actually create an interactive "Hello World" gui that you can click the ok button to exit. It's more code because this now does something much more significant, but it's still very simple:
#include <Elementary.h>
static void
on_done(void *data, Evas_Object *obj, void *event_info)
{
}
EAPI_MAIN int
elm_main(int argc, char **argv)
{
Evas_Object *win, *box, *lab, *btn;
elm_object_text_set(lab, "Hello out there world!");
elm_object_text_set(btn, "OK");
return 0;
}
#define EINA_TRUE
boolean value TRUE (numerical value 1)
Definition eina_types.h:539
void elm_box_horizontal_set(Elm_Box *obj, Eina_Bool horizontal)
Set the horizontal orientation.
Definition elm_box_eo.legacy.c:27
Evas_Object * elm_box_add(Evas_Object *parent)
Add a new box to the parent.
Definition elm_box.c:363
void elm_box_pack_end(Elm_Box *obj, Efl_Canvas_Object *subobj)
Add an object at the end of the pack list.
Definition elm_box_eo.legacy.c:57
void elm_exit(void)
Ask to exit Elementary's main loop.
Definition elm_main.c:1373
Evas_Object * elm_label_add(Evas_Object *parent)
Add a new label to the parent.
Definition elm_label.c:421
Evas_Object * elm_win_util_standard_add(const char *name, const char *title)
Adds a window object with standard setup.
Definition efl_ui_win.c:9587
void elm_win_resize_object_add(Eo *obj, Evas_Object *subobj)
Add subobj as a resize object of window obj.
Definition efl_ui_win.c:9002
EVAS_API void evas_object_show(Evas_Object *eo_obj)
Makes the given Evas object visible.
Definition evas_object_main.c:1814
EVAS_API void evas_object_smart_callback_add(Evas_Object *eo_obj, const char *event, Evas_Smart_Cb func, const void *data)
Add (register) a callback function to the smart event specified by event on the smart object obj.
Definition evas_object_smart.c:1040