[gimp/wip/nielsdg/vapi] Allow building vala plugins
- From: Niels De Graef <nielsdg src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/wip/nielsdg/vapi] Allow building vala plugins
- Date: Sat, 23 May 2020 14:02:05 +0000 (UTC)
commit a64801ea346262b721c7632df7befd33ff6c5070
Author: Niels De Graef <nielsdegraef gmail com>
Date: Fri May 8 21:49:44 2020 +0200
Allow building vala plugins
.gitlab-ci.yml | 1 +
acinclude.m4 | 1 +
configure.ac | 34 +++++
libgimp/GimpUi-3.0.metadata | 25 ++++
libgimp/Makefile.am | 64 ++++++++++
libgimp/gimpaspectpreview.h | 3 +
libgimp/meson.build | 25 ++++
m4macros/Makefile.am | 3 +-
m4macros/vapigen.m4 | 96 ++++++++++++++
meson.build | 16 +++
meson_options.txt | 1 +
plug-ins/goat-exercises/Makefile.am | 36 ++++++
plug-ins/goat-exercises/goat-exercise-vala.vala | 161 ++++++++++++++++++++++++
plug-ins/goat-exercises/meson.build | 22 ++++
14 files changed, 487 insertions(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b2bc22cbeb..ae39e238df 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -120,6 +120,7 @@ deps-debian/testing:
meson
mypaint-brushes
poppler-data
+ valac
xauth
xvfb
- export PKG_CONFIG_PATH="${INSTALL_PREFIX}/lib/pkgconfig:${INSTALL_PREFIX}/share/pkgconfig"
diff --git a/acinclude.m4 b/acinclude.m4
index c803690211..009690d31c 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -6,3 +6,4 @@ m4_include([m4macros/ax_prog_cc_for_build.m4])
m4_include([m4macros/ax_prog_perl_version.m4])
m4_include([m4macros/detectcflags.m4])
m4_include([m4macros/python3dev.m4])
+m4_include([m4macros/vapigen.m4])
diff --git a/configure.ac b/configure.ac
index 34a1b93f80..98b5f0c89b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -49,6 +49,10 @@ m4_define([gimp_full_name], [GNU Image Manipulation Program])
m4_define([alsa_required_version], [1.0.0])
m4_define([appstream_glib_required_version], [0.7.7])
m4_define([atk_required_version], [2.4.0])
+m4_define([babl_major_minor_version], [0.1])
+m4_define([babl_micro_version], [74])
+m4_define([babl_required_version],
+ [babl_major_minor_version.babl_micro_version])
m4_define([babl_required_version], [0.1.74])
m4_define([cairo_required_version], [1.14.0])
m4_define([cairo_pdf_required_version], [1.12.2])
@@ -83,6 +87,7 @@ m4_define([poppler_required_version], [0.69.0])
m4_define([poppler_data_required_version], [0.4.9])
m4_define([python3_required_version], [3.6.0])
m4_define([rsvg_required_version], [2.40.6])
+m4_define([vala_required_version], [0.40.0])
m4_define([webkitgtk_required_version], [2.20.3])
m4_define([webp_required_version], [0.6.0])
m4_define([wmf_required_version], [0.2.8])
@@ -155,6 +160,7 @@ AC_DEFINE(GIMP_TOOL_VERSION, "gimp_tool_version",
# These are used for substitution (.pc, INSTALL, etc.).
APPSTREAM_GLIB_REQUIRED_VERSION=appstream_glib_required_version
ATK_REQUIRED_VERSION=atk_required_version
+BABL_MAJOR_MINOR_VERSION=babl_major_minor_version
BABL_REQUIRED_VERSION=babl_required_version
CAIRO_REQUIRED_VERSION=cairo_required_version
CAIRO_PDF_REQUIRED_VERSION=cairo_pdf_required_version
@@ -181,6 +187,7 @@ POPPLER_REQUIRED_VERSION=poppler_required_version
POPPLER_DATA_REQUIRED_VERSION=poppler_data_required_version
PYTHON3_REQUIRED_VERSION=python3_required_version
RSVG_REQUIRED_VERSION=rsvg_required_version
+VALA_REQUIRED_VERSION=vala_required_version
WEBKITGTK_REQUIRED_VERSION=webkitgtk_required_version
WEBP_REQUIRED_VERSION=webp_required_version
WMF_REQUIRED_VERSION=wmf_required_version
@@ -188,6 +195,7 @@ LIBUNWIND_REQUIRED_VERSION=libunwind_required_version
XGETTEXT_REQUIRED_VERSION=xgettext_required_version
AC_SUBST(APPSTREAM_GLIB_REQUIRED_VERSION)
AC_SUBST(ATK_REQUIRED_VERSION)
+AC_SUBST(BABL_MAJOR_MINOR_VERSION)
AC_SUBST(BABL_REQUIRED_VERSION)
AC_SUBST(CAIRO_REQUIRED_VERSION)
AC_SUBST(CAIRO_PDF_REQUIRED_VERSION)
@@ -214,6 +222,7 @@ AC_SUBST(POPPLER_REQUIRED_VERSION)
AC_SUBST(POPPLER_DATA_REQUIRED_VERSION)
AC_SUBST(PYTHON3_REQUIRED_VERSION)
AC_SUBST(RSVG_REQUIRED_VERSION)
+AC_SUBST(VALA_REQUIRED_VERSION)
AC_SUBST(WEBKITGTK_REQUIRED_VERSION)
AC_SUBST(WEBP_REQUIRED_VERSION)
AC_SUBST(WMF_REQUIRED_VERSION)
@@ -2419,6 +2428,30 @@ fi
AM_CONDITIONAL(HAS_LUA_INTERP, test "x$LUA" != "xno")
AM_CONDITIONAL(BUILD_LUA, test "x$with_lua" != xno)
+#######################################
+# Check for Vala buildtime dependencies
+#######################################
+
+AC_ARG_WITH(vala,
+ [ --with-vala=no|yes install Vala plug-ins (default=yes)], ,
+ [with_vala=yes])
+
+if test "x$with_vala" = xno; then
+ warning_vala="
+WARNING: you disabled the installation of core Vala plug-ins. This
+ is discouraged as it won't provide the full GIMP experience."
+else
+ VAPIGEN_CHECK($VALA_REQUIRED_VERSION)
+ with_vala="yes"
+ warning_vala=
+ AC_PATH_PROG(VALAC, valac, no)
+ if test "x$VALAC" = xno; then
+ AC_MSG_ERROR([Vala-plugins are enabled, but could not find vala compiler])
+ fi
+fi
+
+AM_CONDITIONAL(BUILD_VALA, test "x$with_vala" != xno)
+
###########################################################
# Some plug-ins don't build on Win32, others are Win32-only
###########################################################
@@ -3186,6 +3219,7 @@ Optional Plug-Ins:
Python 3 plug-ins: $with_python
JavaScript plug-ins: $with_javascript
Lua plug-ins: $with_lua
+ Vala plug-ins: $with_vala
TWAIN (Win32): $os_win32
Webpage: $have_webkit
WMF: $have_libwmf
diff --git a/libgimp/GimpUi-3.0.metadata b/libgimp/GimpUi-3.0.metadata
new file mode 100644
index 0000000000..6397503fd1
--- /dev/null
+++ b/libgimp/GimpUi-3.0.metadata
@@ -0,0 +1,25 @@
+// Extra metadata for Vala, to deal with
+// annotations that GIR can't handle.
+//
+// For example, GIR function doesn't handle
+// varargs, but Vala *can* do this, so we can
+// remove the (skip) annotation.
+Dialog
+ .new skip=false
+ .add_buttons skip=false
+IntComboBox
+ .new skip=false
+IntStore
+ .new skip=false
+MessageDialog
+ .new skip=false
+ProcBrowserDialog
+ .new skip=false
+ToolDialog
+ .new skip=false
+OverlayDialog
+ .new skip=false
+ViewableDialog
+ .new skip=false
+
+text_layer_set
diff --git a/libgimp/Makefile.am b/libgimp/Makefile.am
index b65bff955c..744d3ae4a9 100644
--- a/libgimp/Makefile.am
+++ b/libgimp/Makefile.am
@@ -396,3 +396,67 @@ typelibdir = $(libdir)/girepository-1.0
typelib_DATA = $(INTROSPECTION_GIRS:.gir=.typelib)
CLEANFILES += $(gir_DATA) $(typelib_DATA)
+
+
+if ENABLE_VAPIGEN
+
+-include $(VAPIGEN_MAKEFILE)
+
+gimp-@GIMP_API_MAJOR_VERSION@.vapi: Gimp-@GIMP_API_VERSION@.gir gimp-@GIMP_API_MAJOR_VERSION@.deps
+gimp-ui-@GIMP_API_MAJOR_VERSION@.vapi: GimpUi-@GIMP_API_VERSION@.gir GimpUi-@GIMP_API_VERSION@.metadata
gimp-ui-@GIMP_API_MAJOR_VERSION@.deps gimp-@GIMP_API_MAJOR_VERSION@.vapi
+
+VAPIGEN_VAPIS = gimp-@GIMP_API_MAJOR_VERSION@.vapi gimp-ui-@GIMP_API_MAJOR_VERSION@.vapi
+
+# gimp VAPI
+gimp_@GIMP_API_MAJOR_VERSION@_vapi_DEPS = \
+ babl-@BABL_MAJOR_MINOR_VERSION@ \
+ cairo \
+ gdk-pixbuf-2.0 \
+ gegl-@GEGL_MAJOR_MINOR_VERSION@ \
+ glib-2.0 \
+ gio-2.0 \
+ gtk+-3.0
+gimp_@GIMP_API_MAJOR_VERSION@_vapi_GIRDIRS = $(builddir)
+gimp_@GIMP_API_MAJOR_VERSION@_vapi_METADATADIRS = $(srcdir)
+gimp_@GIMP_API_MAJOR_VERSION@_vapi_VAPIDIRS = $(builddir)
+gimp_@GIMP_API_MAJOR_VERSION@_vapi_FILES = Gimp-@GIMP_API_VERSION@.gir
+
+gimp-$(GIMP_API_MAJOR_VERSION).deps: Makefile.am
+ $(AM_V_GEN) for pkg in $(gimp_@GIMP_API_MAJOR_VERSION@_vapi_DEPS); do \
+ echo $$pkg >> $@; \
+ done
+
+# gimp-ui VAPI
+gimp_ui_@GIMP_API_MAJOR_VERSION@_vapi_DEPS = \
+ babl-@BABL_MAJOR_MINOR_VERSION@ \
+ cairo \
+ gdk-pixbuf-2.0 \
+ gegl-@GEGL_MAJOR_MINOR_VERSION@ \
+ glib-2.0 \
+ gio-2.0 \
+ gtk+-3.0 \
+ gimp-@GIMP_API_MAJOR_VERSION@
+
+gimp_ui_@GIMP_API_MAJOR_VERSION@_vapi_GIRDIRS = $(builddir)
+gimp_ui_@GIMP_API_MAJOR_VERSION@_vapi_METADATADIRS = $(srcdir)
+gimp_ui_@GIMP_API_MAJOR_VERSION@_vapi_VAPIDIRS = $(builddir)
+gimp_ui_@GIMP_API_MAJOR_VERSION@_vapi_FILES = GimpUi-@GIMP_API_VERSION@.gir
+
+gimp-ui-$(GIMP_API_MAJOR_VERSION).deps: Makefile.am
+ $(AM_V_GEN) for pkg in $(gimp_ui_@GIMP_API_MAJOR_VERSION@_vapi_DEPS); do \
+ echo $$pkg >> $@; \
+ done
+
+vapidir = $(datadir)/vala/vapi
+vapi_DATA = \
+ gimp-@GIMP_API_MAJOR_VERSION@.vapi \
+ gimp-@GIMP_API_MAJOR_VERSION@.deps \
+ gimp-ui-@GIMP_API_MAJOR_VERSION@.vapi \
+ gimp-ui-@GIMP_API_MAJOR_VERSION@.deps
+
+CLEANFILES += $(vapi_DATA)
+
+EXTRA_DIST += \
+ GimpUi-@GIMP_API_VERSION@.metadata
+
+endif # ENABLE_VAPIGEN
diff --git a/libgimp/gimpaspectpreview.h b/libgimp/gimpaspectpreview.h
index e7d126aaaf..06aabcceaf 100644
--- a/libgimp/gimpaspectpreview.h
+++ b/libgimp/gimpaspectpreview.h
@@ -25,6 +25,9 @@
#ifndef __GIMP_ASPECT_PREVIEW_H__
#define __GIMP_ASPECT_PREVIEW_H__
+#include <glib-object.h>
+#include <gtk/gtk.h>
+
G_BEGIN_DECLS
diff --git a/libgimp/meson.build b/libgimp/meson.build
index 231578ce2e..3ac6a6b2c8 100644
--- a/libgimp/meson.build
+++ b/libgimp/meson.build
@@ -454,4 +454,29 @@ else
include_directories: rootInclude,
install: true,
)
+
+ if have_vala
+ vapi_deps = [
+ 'babl-0.1',
+ 'cairo-1.0',
+ 'gdk-pixbuf-2.0',
+ 'gegl-0.4',
+ 'gio-2.0',
+ 'glib-2.0',
+ 'gobject-2.0',
+ 'gtk+-3.0',
+ ]
+
+ libgimp_vapi = gnome.generate_vapi('gimp-' + gimp_api_version,
+ sources: libgimp_gir[0],
+ packages: vapi_deps,
+ install: true,
+ )
+
+ libgimpui_vapi = gnome.generate_vapi('gimp-ui-' + gimp_api_version,
+ sources: libgimpui_gir[0],
+ packages: vapi_deps + [ libgimp_vapi ],
+ install: true,
+ )
+ endif
endif
diff --git a/m4macros/Makefile.am b/m4macros/Makefile.am
index c79976280a..ed19e97a5a 100644
--- a/m4macros/Makefile.am
+++ b/m4macros/Makefile.am
@@ -11,7 +11,8 @@ uninstalled_m4 = \
ax_prog_perl_version.m4 \
detectcflags.m4 \
introspection.m4 \
- python3dev.m4
+ python3dev.m4 \
+ vapigen.m4
EXTRA_DIST = $(installed_m4) $(uninstalled_m4)
diff --git a/m4macros/vapigen.m4 b/m4macros/vapigen.m4
new file mode 100644
index 0000000000..f2df12f23f
--- /dev/null
+++ b/m4macros/vapigen.m4
@@ -0,0 +1,96 @@
+dnl vapigen.m4
+dnl
+dnl Copyright 2012 Evan Nemerson
+dnl
+dnl This library is free software; you can redistribute it and/or
+dnl modify it under the terms of the GNU Lesser General Public
+dnl License as published by the Free Software Foundation; either
+dnl version 2.1 of the License, or (at your option) any later version.
+dnl
+dnl This library is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+dnl Lesser General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU Lesser General Public
+dnl License along with this library; if not, write to the Free Software
+dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+# VAPIGEN_CHECK([VERSION], [API_VERSION], [FOUND-INTROSPECTION], [DEFAULT])
+# --------------------------------------
+# Check vapigen existence and version
+#
+# See http://live.gnome.org/Vala/UpstreamGuide for detailed documentation
+AC_DEFUN([VAPIGEN_CHECK],
+[
+ AC_BEFORE([GOBJECT_INTROSPECTION_CHECK],[$0])
+ AC_BEFORE([GOBJECT_INTROSPECTION_REQUIRE],[$0])
+
+ AC_ARG_ENABLE([vala],
+ [AS_HELP_STRING([--enable-vala[=@<:@no/auto/yes@:>@]],[build Vala bindings
@<:@default=]ifelse($4,,auto,$4)[@:>@])],,[
+ AS_IF([test "x$4" = "x"], [
+ enable_vala=auto
+ ], [
+ enable_vala=$4
+ ])
+ ])
+
+ AS_CASE([$enable_vala], [no], [enable_vala=no],
+ [yes], [
+ AS_IF([test "x$3" != "xyes" -a "x$found_introspection" != "xyes"], [
+ AC_MSG_ERROR([Vala bindings require GObject Introspection])
+ ])
+ ], [auto], [
+ AS_IF([test "x$3" != "xyes" -a "x$found_introspection" != "xyes"], [
+ enable_vala=no
+ ])
+ ], [
+ AC_MSG_ERROR([Invalid argument passed to --enable-vala, should be one of @<:@no/auto/yes@:>@])
+ ])
+
+ AS_IF([test "x$2" = "x"], [
+ vapigen_pkg_name=vapigen
+ ], [
+ vapigen_pkg_name=vapigen-$2
+ ])
+ AS_IF([test "x$1" = "x"], [
+ vapigen_pkg="$vapigen_pkg_name"
+ ], [
+ vapigen_pkg="$vapigen_pkg_name >= $1"
+ ])
+
+ PKG_PROG_PKG_CONFIG
+
+ PKG_CHECK_EXISTS([$vapigen_pkg], [
+ AS_IF([test "$enable_vala" = "auto"], [
+ enable_vala=yes
+ ])
+ ], [
+ AS_CASE([$enable_vala], [yes], [
+ AC_MSG_ERROR([$vapigen_pkg not found])
+ ], [auto], [
+ enable_vala=no
+ ])
+ ])
+
+ AC_MSG_CHECKING([for vala])
+
+ AS_CASE([$enable_vala],
+ [yes], [
+ VAPIGEN=`$PKG_CONFIG --variable=vapigen vapigen`
+ VAPIGEN_MAKEFILE=`$PKG_CONFIG --variable=datadir vapigen`/vala/Makefile.vapigen
+ AS_IF([test "x$2" = "x"], [
+ VAPIGEN_VAPIDIR=`$PKG_CONFIG --variable=vapidir vapigen`
+ ], [
+ VAPIGEN_VAPIDIR=`$PKG_CONFIG --variable=vapidir_versioned vapigen`
+ ])
+ ])
+
+ AC_MSG_RESULT([$enable_vala])
+
+ AC_SUBST([VAPIGEN])
+ AC_SUBST([VAPIGEN_VAPIDIR])
+ AC_SUBST([VAPIGEN_MAKEFILE])
+
+ AM_CONDITIONAL(ENABLE_VAPIGEN, test "x$enable_vala" = "xyes")
+])
diff --git a/meson.build b/meson.build
index 956a13f363..1bc9fd3ca3 100644
--- a/meson.build
+++ b/meson.build
@@ -757,6 +757,22 @@ if libheif.version().version_compare('==1.5.0') or libheif.version().version_com
warnings += libheif_warning
endif
+have_vala = add_languages('vala', required: get_option('vala-plugins'))
+if have_vala
+ babl = declare_dependency(
+ dependencies: [
+ babl,
+ meson.get_compiler('vala').find_library('babl-0.1'),
+ ]
+ )
+
+ # TODO: remove this once we release 3.0
+ valac = meson.get_compiler('vala')
+ if valac.version().version_compare('>= 0.31.1')
+ add_project_arguments('--disable-since-check', language: 'vala')
+ endif
+endif
+
webkit_minver = '2.20.3'
webkit = dependency('webkit2gtk-4.0', version: '>=' + webkit_minver,
required: get_option('webkit')
diff --git a/meson_options.txt b/meson_options.txt
index e59524d450..87ba670917 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -45,6 +45,7 @@ option('png', type: 'feature', value: 'auto', description: 'PNG su
option('print', type: 'feature', value: 'auto', description: 'Print support')
option('screenshot', type: 'feature', value: 'auto', description: 'Screensh')
option('tiff', type: 'feature', value: 'auto', description: 'TIFF support')
+option('vala-plugins', type: 'feature', value: 'auto', description: 'Build VAPI and Vala plugins')
option('webkit', type: 'feature', value: 'auto', description: 'Help browser and webpage plugins')
option('webp', type: 'feature', value: 'auto', description: 'Webp support')
option('wmf', type: 'feature', value: 'auto', description: 'Wmf support')
diff --git a/plug-ins/goat-exercises/Makefile.am b/plug-ins/goat-exercises/Makefile.am
index c0c3c84efb..a1e62486ab 100644
--- a/plug-ins/goat-exercises/Makefile.am
+++ b/plug-ins/goat-exercises/Makefile.am
@@ -82,6 +82,42 @@ goat_exercise_py3dir = $(gimpplugindir)/plug-ins/goat-exercise-py3
goat_exercise_py3_SCRIPTS = goat-exercise-py3.py
endif
+# Vala (compiled to C) version
+
+if ENABLE_VAPIGEN
+
+goat_exercise_vala_libexecdir = $(gimpplugindir)/plug-ins/goat-exercise-vala
+goat_exercise_vala_datadir = $(goat_exercise_vala_libexecdir)
+
+goat_exercise_vala_libexec_PROGRAMS = goat-exercise-vala
+goat_exercise_vala_libexec_DATA = goat-exercise-vala.vala
+
+goat_exercise_vala_SOURCES = goat-exercise-vala.vala
+goat_exercise_vala_CFLAGS = -DGETTEXT_PACKAGE=\""$(GETTEXT_PACKAGE)"\"
+
+goat_exercise_vala_LDADD = \
+ $(libgimp) \
+ $(libgimpmath) \
+ $(libgimpconfig) \
+ $(libgimpcolor) \
+ $(libgimpbase) \
+ $(libgimpui) \
+ $(libgimpwidgets) \
+ $(CAIRO_LIBS) \
+ $(GDK_PIXBUF_LIBS) \
+ $(GEGL_LIBS) \
+ $(GTK_LIBS) \
+ $(RT_LIBS) \
+ $(INTLLIBS) \
+ $(goat_exercise_RC)
+
+goat_exercise_vala_VALAFLAGS = \
+ --vapidir=$(abs_top_builddir)/libgimp \
+ --pkg gimp-@GIMP_API_MAJOR_VERSION@ \
+ --pkg gimp-ui-@GIMP_API_MAJOR_VERSION@
+
+endif
+
EXTRA_DIST = \
goat-exercise-gjs.js \
goat-exercise-lua.lua \
diff --git a/plug-ins/goat-exercises/goat-exercise-vala.vala b/plug-ins/goat-exercises/goat-exercise-vala.vala
new file mode 100755
index 0000000000..6a6b5e467a
--- /dev/null
+++ b/plug-ins/goat-exercises/goat-exercise-vala.vala
@@ -0,0 +1,161 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * hello-world.vala
+ * Copyright (C) Niels De Graef <nielsdegraef gmail com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+private const string PLUG_IN_PROC = "plug-in-goat-exercise-vala";
+private const string PLUG_IN_ROLE = "goat-exercise-vala";
+private const string PLUG_IN_BINARY = "goat-exercise-vala";
+private const string PLUG_IN_SOURCE = PLUG_IN_BINARY + ".vala";
+private const string URL =
"https://gitlab.gnome.org/GNOME/gimp/blob/master/plug-ins/goat-exercises/goat-exercise-vala.vala";
+
+public int main(string[] args) {
+ return Gimp.main(typeof(Goat), args);
+}
+
+public class Goat : Gimp.PlugIn {
+
+ public override GLib.List<string> query_procedures() {
+ GLib.List<string> procs = null;
+ procs.append(PLUG_IN_PROC);
+ return procs;
+ }
+
+ public override Gimp.Procedure create_procedure(string name) {
+ assert(name == PLUG_IN_PROC);
+
+ var procedure = new Gimp.ImageProcedure(this, name, Gimp.PDBProcType.PLUGIN, this.run);
+ procedure.set_image_types("RGB*, INDEXED*, GRAY*");
+ procedure.set_menu_label("Exercise a Vala goat");
+ procedure.set_documentation("Exercise a goat in the Vala language",
+ "Takes a goat for a walk in Vala",
+ PLUG_IN_PROC);
+ procedure.add_menu_path("<Image>/Filters/Development/Goat exercises/");
+ procedure.set_attribution("Niels De Graef", "Niels De Graef", "2020");
+ procedure.set_icon_name(Gimp.ICON_GEGL);
+
+ return procedure;
+ }
+
+ public Gimp.ValueArray run(Gimp.Procedure procedure,
+ Gimp.RunMode run_mode,
+ Gimp.Image image,
+ Gimp.Drawable drawable,
+ Gimp.ValueArray args) {
+ if (run_mode == Gimp.RunMode.INTERACTIVE) {
+ Gimp.ui_init(PLUG_IN_BINARY);
+
+ var dialog =
+ new Gimp.Dialog(_("Exercise a goat (Vala)"),
+ PLUG_IN_ROLE,
+ null,
+ Gtk.DialogFlags.USE_HEADER_BAR,
+ Gimp.standard_help_func,
+ PLUG_IN_PROC,
+ _("_Cancel"), Gtk.ResponseType.CANCEL,
+ _("_Source"), Gtk.ResponseType.APPLY,
+ _("_Run"), Gtk.ResponseType.OK,
+ null);
+
+ var geometry = Gdk.Geometry();
+ geometry.min_aspect = 0.5;
+ geometry.max_aspect = 1.0;
+ dialog.set_geometry_hints(null, geometry, Gdk.WindowHints.ASPECT);
+
+ var box = new Gtk.Box(Gtk.Orientation.VERTICAL, 12);
+ box.border_width = 12;
+ dialog.get_content_area().add(box);
+ box.show();
+
+ var head_text =
+ _("This plug-in is an exercise in '%s' to demo plug-in creation.\nCheck out the last version of the
source code online by clicking the \"Source\" button.")
+ .printf("Vala");
+
+ var label = new Gtk.Label(head_text);
+ box.pack_start(label, false, false, 1);
+ label.show();
+
+
+ string file = Path.build_filename(Gimp.PlugIn.directory(), "plug-ins", PLUG_IN_BINARY, PLUG_IN_SOURCE);
+ string contents;
+ try {
+ FileUtils.get_contents(file, out contents);
+ } catch (Error err) {
+ contents = "Couldn't get file contents: %s".printf(err.message);
+ }
+
+ var scrolled = new Gtk.ScrolledWindow(null, null);
+ scrolled.vexpand = true;
+ box.pack_start(scrolled, true, true, 1);
+ scrolled.show();
+
+ var view = new Gtk.TextView();
+ view.wrap_mode = Gtk.WrapMode.WORD;
+ view.editable = false;
+ view.buffer.text = contents;
+ scrolled.add(view);
+ view.show();
+
+ while (true) {
+ var response = dialog.run();
+
+ if (response == Gtk.ResponseType.OK) {
+ dialog.destroy();
+ break;
+ } else if (response == Gtk.ResponseType.APPLY) {
+ try {
+ Gtk.show_uri_on_window(dialog, URL, Gdk.CURRENT_TIME);
+ } catch (Error err) {
+ warning("Couldn't launch browser for %s: %s", URL, err.message);
+ }
+ continue;
+ } else {
+ dialog.destroy();
+ return procedure.new_return_values(Gimp.PDBStatusType.CANCEL, null);
+ }
+ }
+ }
+
+ int x, y, width, height;
+ if (!drawable.mask_intersect(out x, out y, out width, out height)) {
+ var error = new GLib.Error.literal(GLib.Quark.from_string("goat-error-quark"), 0,
+ "No pixels to process in the selected area.");
+ return procedure.new_return_values(Gimp.PDBStatusType.CALLING_ERROR, error);
+ }
+
+ unowned string[]? argv = null;
+ Gegl.init(ref argv);
+
+ {
+ var buffer = drawable.get_buffer();
+ var shadow_buffer = drawable.get_shadow_buffer();
+ Gegl.render_op(buffer, shadow_buffer, "gegl:invert", null);
+ // We don't need this line, since shadow_buffer is unreffed
+ // at the end of this block.
+ // No block? Then you still need to uncomment the following line
+ // shadow_buffer.flush();
+ }
+
+ drawable.merge_shadow(true);
+ drawable.update(x, y, width, height);
+ Gimp.displays_flush();
+ Gegl.exit();
+
+ return procedure.new_return_values(Gimp.PDBStatusType.SUCCESS, null);
+ }
+}
diff --git a/plug-ins/goat-exercises/meson.build b/plug-ins/goat-exercises/meson.build
index f6779c887f..982400778d 100644
--- a/plug-ins/goat-exercises/meson.build
+++ b/plug-ins/goat-exercises/meson.build
@@ -35,6 +35,28 @@ install_data(
install_dir: gimpplugindir / 'plug-ins' / plugin_name + '-c',
)
+# Vala version
+
+if have_vala
+ goat_exercise_vala = executable('goat-exercise-vala',
+ 'goat-exercise-vala.vala',
+ include_directories: [ rootInclude, ],
+ dependencies: [
+ libgimp_vapi, libgimpui_vapi, gtk3, gegl, math,
+ ],
+ c_args: [
+ '-DGETTEXT_PACKAGE="@0@"'.format(gettext_package),
+ ],
+ install: true,
+ install_dir: gimpplugindir / 'plug-ins' / plugin_name + '-vala',
+ )
+
+ install_data(
+ 'goat-exercise-vala.vala',
+ install_dir: gimpplugindir / 'plug-ins' / plugin_name + '-vala',
+ )
+endif
+
# Python 3 (pygobject) version.
if have_python
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