Initial version
It is already working, but undocumented. It is actually the widgetified version of Gustavo Sverzut Barbieri's gobject-class.el with some minor modifications.
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gobgen.el
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340
gobgen.el
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;;; gobgen.el --- Generate GObject descendants using a detailed form
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;; Author: Gergely Polonkai <gergely@polonkai.eu>
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;; Copyright: GPL
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;; URL: https://github.com/gergelypolonkai/gobgen.el
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;; Keywords: gobject, glib, gtk, helper, utilities
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;;; Commentary:
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;; Generator code is highly based on Gustavo Sverzut Barbieri's
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;; gobject-class.el
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;;; Code:
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(require 'widget)
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(eval-when-compile (require 'wid-edit))
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(defvar gobgen-widget-name)
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(defvar gobgen-widget-prefix)
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(defvar gobgen-widget-parent-name)
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(defvar gobgen-widget-parent-prefix)
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(defvar gobgen-widget-recent)
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(defvar gobgen-widget-private)
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(defun string-has-prefix (full-str prefix-str)
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"Check if full-str has the prefix prefix-str"
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(let* ((prefix-length (length prefix-str)))
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(string-equal prefix-str (substring full-str 0 prefix-length))))
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(defun get-gobject-prefix (class-name)
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(car (split-string class-name "_")))
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(defun gobgen-gen-header ()
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(concat
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"#ifndef __"
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CLASS_FULL_NAME
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"_H__\n"
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"#define __"
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CLASS_FULL_NAME
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"_H__\n"
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"\n"
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(if (string-equal "g" parent_prefix)
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"#include <glib-object.h>"
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(if (string-equal "gtk" parent_prefix)
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"#include <gtk/gtk.h>"
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(concat "// You might want to revise this\n"
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"#include <"
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parent-header
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">")))
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"\n"
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"\n"
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"G_BEGIN_DECLS\n"
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"\n"
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"#define " CLASS_PREFIX "_TYPE_" CLASS_NAME " (" func-prefix "_get_type())\n"
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"#define " CLASS_FULL_NAME "(o) (G_TYPE_CHECK_INSTANCE_CAST((o), " CLASS_PREFIX "_TYPE_" CLASS_NAME ", " ClassFullName "))\n"
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"#define " CLASS_FULL_NAME "_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), " CLASS_PREFIX "_TYPE_" CLASS_NAME ", " ClassFullName "Class))\n"
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"#define " CLASS_PREFIX "_IS_" CLASS_NAME "(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), " CLASS_PREFIX "_TYPE_" CLASS_NAME "))\n"
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"#define " CLASS_PREFIX "_IS_" CLASS_NAME "_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), " CLASS_PREFIX "_TYPE_" CLASS_NAME "))\n"
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"#define " CLASS_FULL_NAME"_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), " CLASS_PREFIX "_TYPE_" CLASS_NAME ", " ClassFullName "Class))\n"
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"\n"
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"typedef struct _" ClassFullName " " ClassFullName ";\n"
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"typedef struct _" ClassFullName "Class " ClassFullName "Class;\n"
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(if (and (not recent-glib) need-private)
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(concat "typedef struct _" ClassFullName "Private " ClassFullName "Private;\n"))
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"\n"
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"struct _" ClassFullName " {\n"
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" /* Parent instance structure */\n"
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" " ParentPrefix ParentName " parent_instance;\n"
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"\n"
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" /* Instance members */\n"
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(if (and (not recent-glib) need-private)
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(concat "\n"
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" /*< private >*/\n"
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" " ClassFullName "Private *priv;\n"))
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"};\n"
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"\n"
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"struct _" ClassFullName "Class {\n"
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" " ParentPrefix ParentName "Class parent_class;\n"
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"};\n"
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"\n"
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"GType " func-prefix "_get_type(void) G_GNUC_CONST;\n"
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"\n"
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"G_END_DECLS\n"
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"\n"
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"#endif /* __"
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CLASS_FULL_NAME
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"_H__ */\n"))
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(defun gobgen-gen-code ()
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(concat
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"#include \"" file-name-header "\"\n"
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"\n"
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(if need-private
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(concat
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(if (not recent-glib)
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(concat
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"#define " CLASS_FULL_NAME "_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE( \\\n"
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" (o), \\\n"
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" " CLASS_PREFIX "_TYPE_" CLASS_NAME ", \\\n"
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" " ClassFullName "Private \\\n"
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" ))\n"
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"\n"))
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(if recent-glib "typedef ")
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"struct _" ClassFullName "Private {\n"
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" /* TODO: You must add something here, or GLib will produce warnings! */\n"
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"}"
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(if recent-glib
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(concat " " ClassFullName "Private"))
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";\n"
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"\n"))
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"G_DEFINE_TYPE"
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(if (and recent-glib need-private)
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"_WITH_PRIVATE")
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"(" ClassFullName ", " func-prefix ", " PARENT_PREFIX "_TYPE_" PARENT_NAME ");\n"
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"\n"
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"static void\n"
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func-prefix "_finalize(GObject *gobject)\n"
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"{\n"
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" g_signal_handlers_destroy(gobject);\n"
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" G_OBJECT_CLASS(" func-prefix "_parent_class)->finalize(gobject);\n"
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"}\n"
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"\n"
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"static void\n"
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func-prefix "_class_init(" ClassFullName "Class *klass)\n"
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"{\n"
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" GObjectClass *gobject_class = G_OBJECT_CLASS(klass);\n"
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"\n"
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(if (and (not recent-glib) need-private)
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(concat
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" g_type_class_add_private(klass, sizeof(" ClassFullName "Private);\n"
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"\n"))
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" gobject_class->finalize = " func-prefix "_finalize;\n"
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"}\n"
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"\n"
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"static void\n"
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func-prefix "_init(" ClassFullName " *" class_name ")\n"
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"{\n"
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(if (and (not recent-glib) need-private)
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(concat
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" " class_name "->priv = " CLASS_FULL_NAME "_GET_PRIVATE(" class_name ");\n"))
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"}\n"))
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(defun gobgen-generator ()
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"Generate the header definition for a GObject derived clas.
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Parameters:
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"
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(let* ((parent-prefix (downcase parent-prefix))
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(parent-name (downcase parent-name))
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(class-prefix (downcase class-prefix))
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(class-name (downcase class-name))
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(parent-prefix-length (length parent-prefix))
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(class-prefix-length (length class-prefix)))
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(if (not (string-has-prefix parent-name (concat parent-prefix "_")))
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(message (concat "Parent (" parent-name ") and parent prefix (" parent-prefix ") don't match"))
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(if (not (string-has-prefix class-name (concat class-prefix "_")))
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(message (concat "Class (" class-name ") and class prefix (" class-prefix ") don't match"))
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(let* ((parent-name (substring parent-name (+ parent-prefix-length 1)))
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(class-name (substring class-name (+ class-prefix-length 1)))
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(parent-prefix-pcs (split-string parent-prefix "_"))
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(parent-name-pcs (split-string parent-name "_"))
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(class-prefix-pcs (split-string class-prefix "_"))
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(class-name-pcs (split-string class-name "_"))
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(parent_prefix (string-join parent-prefix-pcs "_"))
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(ParentPrefix (mapconcat 'capitalize parent-prefix-pcs ""))
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(PARENT_PREFIX (upcase parent_prefix))
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(parent_name (string-join parent-name-pcs "_"))
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(ParentName (mapconcat 'capitalize parent-name-pcs ""))
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(PARENT_NAME (upcase parent_name))
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(class_prefix (string-join class-prefix-pcs "_"))
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(ClassPrefix (mapconcat 'capitalize class-prefix-pcs ""))
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(CLASS_PREFIX (upcase class_prefix))
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(class_name (string-join class-name-pcs "_"))
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(ClassName (mapconcat 'capitalize class-name-pcs ""))
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(CLASS_NAME (upcase class_name))
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(func-prefix (concat class_prefix "_" class_name))
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(ClassFullName (concat ClassPrefix ClassName))
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(CLASS_FULL_NAME (concat CLASS_PREFIX "_" CLASS_NAME))
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(parent-header (concat (string-join (append parent-prefix-pcs parent-name-pcs) "-") ".h"))
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(file-name-base (string-join (append class-prefix-pcs class-name-pcs) "-"))
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(file-name-code (concat file-name-base ".c"))
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(file-name-header (concat file-name-base ".h")))
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(delete-other-windows)
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(split-window-vertically)
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(other-window 1)
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(find-file file-name-header)
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(insert (gobgen-gen-header))
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(split-window-vertically)
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(other-window 1)
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(find-file file-name-code)
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(insert (gobgen-gen-code)))))))
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(defun gobgen ()
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"Create widgets window for GObject creation"
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(interactive)
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(switch-to-buffer "*GObject Creator*")
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(kill-all-local-variables)
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(let ((inhibit-read-only t))
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(erase-buffer))
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(remove-overlays)
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(widget-insert "GObject Creator\n\n")
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(setq gobgen-widget-name
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(widget-create 'editable-field
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:size 25
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:format "Name: %v"
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:notify (lambda (widget &rest ignore)
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(widget-value-set gobgen-widget-prefix (get-gobject-prefix (widget-value widget))))
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"g_example_object"))
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(widget-insert " ")
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(setq gobgen-widget-prefix
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(widget-create 'editable-field
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:size 10
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:format "Prefix: %v\n"
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"g"))
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(setq gobgen-widget-parent-name
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(widget-create 'editable-field
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:size 25
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:format "Parent: %v"
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"g_object"))
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(widget-insert " ")
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(setq gobgen-widget-parent-prefix
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(widget-create 'editable-field
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:size 10
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:format "Prefix: %v\n"
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"g"))
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(widget-insert "\n")
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(setq gobgen-widget-recent
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(widget-create 'checkbox
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t))
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(widget-insert " GLib >= 2.38\n")
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(setq gobgen-widget-private
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(widget-create 'checkbox
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nil))
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(widget-insert " Has private members\n")
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(widget-insert "\n\n")
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(widget-create 'push-button
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:notify (lambda (&rest ignore)
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(let ((class-name (widget-value gobgen-widget-name))
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(class-prefix (widget-value gobgen-widget-prefix))
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(parent-name (widget-value gobgen-widget-parent-name))
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(parent-prefix (widget-value gobgen-widget-parent-prefix))
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(recent-glib (widget-value gobgen-widget-recent))
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(need-private (widget-value gobgen-widget-private)))
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(gobgen-generator)))
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"Generate")
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(widget-insert " ")
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(widget-create 'push-button
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:notify (lambda (&rest ignore)
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(gobgen-widgets))
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"Reset form")
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(widget-insert " ")
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(widget-create 'push-button
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:notify (lambda (&rest ignore)
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(kill-buffer "*GObject Creator*"))
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"Close")
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(beginning-of-buffer)
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(use-local-map widget-keymap)
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(widget-setup))
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