Build a static image for the About dialog box background.gtk4

32 files changed, 322 insertions, 174 deletions

diff --git a/.gitignore b/.gitignore
index bb8db02..ae3f2cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -77,6 +77,9 @@ tools/d2c/d2c
 tools/fuzzing/rost/fast-rost
 tools/yara2rost/yara2rost
 
+# Images générées
+src/data/images/about-bg.png
+
 # Schemas
 src/schemas/gschemas.compiled
 src/schemas/*.valid
@@ -84,6 +87,8 @@ src/schemas/*.valid
 # Misc
 plugins/python/androperms/androperms.db
 system/pkgconfig/chrysalide.pc
+tools/about/bg.png
+tools/about/cour10p_b.ttf
 tools/fuzzing/rost/rost.dict
 
 # Themes
diff --git a/configure.ac b/configure.ac
index 693e9f8..8429ae6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -744,6 +744,8 @@ AC_CONFIG_FILES([stamp-h po/Makefile.in], [echo timestamp > stamp-h])
 
 AC_CONFIG_COMMANDS([marshal], [echo -e "VOID:UINT64\nVOID:INT,UINT64,INT\nVOID:OBJECT,OBJECT\nVOID:ENUM,OBJECT\nVOID:ENUM,ENUM\nVOID:BOOLEAN,UINT64\nVOID:BOOLEAN,ULONG,ULONG\nVOID:INT,INT\nVOID:OBJECT,BOOLEAN\nVOID:ULONG,BOOLEAN\nVOID:DOUBLE,DOUBLE" > src/glibext/chrysamarshal.list])
 
+AC_CONFIG_COMMANDS([about], [./tools/about/gen.sh $version], [version=r$PACKAGE_VERSION])
+
 AC_CONFIG_FILES([Makefile
                  doc/Makefile
                  pixmaps/Makefile
diff --git a/pixmaps/Makefile.am b/pixmaps/Makefile.am
index d1dff31..da3de19 100644
--- a/pixmaps/Makefile.am
+++ b/pixmaps/Makefile.am
@@ -4,19 +4,6 @@ APP_ICONS =								\
 	chrysalide-64.png					\
 	chrysalide-128.png
 
-REVISION_PIX =							\
-	revision_0.png						\
-	revision_1.png						\
-	revision_2.png						\
-	revision_3.png						\
-	revision_4.png						\
-	revision_5.png						\
-	revision_6.png						\
-	revision_7.png						\
-	revision_8.png						\
-	revision_9.png						\
-	revision.png
-
 TOOLBAR_BUTTONS =						\
 	tbutton_collapse.png				\
 	tbutton_expand.png					\
@@ -41,8 +28,6 @@ OTHER_ICONS = 							\
 	breakpoint_normal.png
 
 MISC =									\
-	chrysalide-full.png					\
-	chrysalide_text.png					\
 	welcome.png
 
 CORE =									\
@@ -57,13 +42,12 @@ EXTRA_DIST =							\
 	openida_text.xcf					\
 	before-after.png					\
 	$(APP_ICONS)						\
-	$(REVISION_PIX)						\
 	$(TOOLBAR_BUTTONS)					\
 	$(LIST_ICONS)						\
 	$(ERROR_ICONS)						\
 	$(MISC)								\
 	$(CORE)
 
-pix_DATA = $(APP_ICONS) $(REVISION_PIX) $(TOOLBAR_BUTTONS) $(LIST_ICONS) $(ERROR_ICONS) $(OTHER_ICONS) $(MISC)
+pix_DATA = $(APP_ICONS) $(TOOLBAR_BUTTONS) $(LIST_ICONS) $(ERROR_ICONS) $(OTHER_ICONS) $(MISC)
 
 pixdir = $(pixmapsdir)
diff --git a/pixmaps/chrysalide-full.png b/pixmaps/chrysalide-full.png
deleted file mode 100644
index a153353..0000000
--- a/pixmaps/chrysalide-full.png
+++ /dev/null
diff --git a/pixmaps/chrysalide_text.png b/pixmaps/chrysalide_text.png
deleted file mode 100644
index b4d8c78..0000000
--- a/pixmaps/chrysalide_text.png
+++ /dev/null
diff --git a/pixmaps/revision.png b/pixmaps/revision.png
deleted file mode 100644
index 330e108..0000000
--- a/pixmaps/revision.png
+++ /dev/null
diff --git a/pixmaps/revision_0.png b/pixmaps/revision_0.png
deleted file mode 100644
index 0a468de..0000000
--- a/pixmaps/revision_0.png
+++ /dev/null
diff --git a/pixmaps/revision_1.png b/pixmaps/revision_1.png
deleted file mode 100644
index 738a881..0000000
--- a/pixmaps/revision_1.png
+++ /dev/null
diff --git a/pixmaps/revision_2.png b/pixmaps/revision_2.png
deleted file mode 100644
index b567b80..0000000
--- a/pixmaps/revision_2.png
+++ /dev/null
diff --git a/pixmaps/revision_3.png b/pixmaps/revision_3.png
deleted file mode 100644
index 7f5e3fc..0000000
--- a/pixmaps/revision_3.png
+++ /dev/null
diff --git a/pixmaps/revision_4.png b/pixmaps/revision_4.png
deleted file mode 100644
index a21ccbb..0000000
--- a/pixmaps/revision_4.png
+++ /dev/null
diff --git a/pixmaps/revision_5.png b/pixmaps/revision_5.png
deleted file mode 100644
index a9130d9..0000000
--- a/pixmaps/revision_5.png
+++ /dev/null
diff --git a/pixmaps/revision_6.png b/pixmaps/revision_6.png
deleted file mode 100644
index 291febd..0000000
--- a/pixmaps/revision_6.png
+++ /dev/null
diff --git a/pixmaps/revision_7.png b/pixmaps/revision_7.png
deleted file mode 100644
index ccd4d4e..0000000
--- a/pixmaps/revision_7.png
+++ /dev/null
diff --git a/pixmaps/revision_8.png b/pixmaps/revision_8.png
deleted file mode 100644
index 054c250..0000000
--- a/pixmaps/revision_8.png
+++ /dev/null
diff --git a/pixmaps/revision_9.png b/pixmaps/revision_9.png
deleted file mode 100644
index 1123669..0000000
--- a/pixmaps/revision_9.png
+++ /dev/null
diff --git a/src/data/images/Makefile.am b/src/data/images/Makefile.am
index 068e43f..d5ec84f 100644
--- a/src/data/images/Makefile.am
+++ b/src/data/images/Makefile.am
@@ -4,6 +4,7 @@ BUILT_SOURCES = resources.h resources.c
 noinst_LTLIBRARIES  = libdataimages.la
 
 RES_FILES =									\
+	about-bg.png							\
 	dock-station-left-symbolic.svg			\
 	dock-station-right-symbolic.svg			\
 	dock-station-bottom-symbolic.svg		\
diff --git a/src/data/images/gresource.xml b/src/data/images/gresource.xml
index 7659da3..25c8274 100644
--- a/src/data/images/gresource.xml
+++ b/src/data/images/gresource.xml
@@ -1,5 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gresources>
+    <gresource prefix="/re/chrysalide/framework/gui/dialogs/about">
+        <file compressed="true" alias="bg.png">about-bg.png</file>
+    </gresource>
     <gresource prefix="/re/chrysalide/framework/gui/icons/scalable/actions">
         <file compressed="true">dock-station-left-symbolic.svg</file>
         <file compressed="true">dock-station-right-symbolic.svg</file>
diff --git a/src/gui/dialogs/Makefile.am b/src/gui/dialogs/Makefile.am
index e910c96..3492f63 100644
--- a/src/gui/dialogs/Makefile.am
+++ b/src/gui/dialogs/Makefile.am
@@ -3,7 +3,9 @@ BUILT_SOURCES = resources.h resources.c
 
 noinst_LTLIBRARIES  = libguidialogs.la
 
+
 UI_FILES =									\
+	about.css								\
 	about.ui								\
 	preferences.ui
 # bookmark.ui							\
diff --git a/src/gui/dialogs/about-int.h b/src/gui/dialogs/about-int.h
index 616c73f..96a470e 100644
--- a/src/gui/dialogs/about-int.h
+++ b/src/gui/dialogs/about-int.h
@@ -37,20 +37,6 @@ struct _GtkAppAboutDialog
 {
     GtkWindow parent;                       /* A laisser en premier        */
 
-    union
-    {
-        struct
-        {
-            GtkPicture *revision_0;         /* Numéro #0                   */
-            GtkPicture *revision_1;         /* Numéro #1                   */
-            GtkPicture *revision_2;         /* Numéro #2                   */
-            GtkPicture *revision_3;         /* Numéro #3                   */
-            GtkPicture *revision_4;         /* Numéro #4                   */
-            GtkPicture *revision_5;         /* Numéro #5                   */
-        };
-        GtkPicture *revisions[6];           /* Tous les numéros d'un coup  */
-    };
-
 };
 
 /* Boîte "A propos de" dédiée à l'application (classe) */
diff --git a/src/gui/dialogs/about.c b/src/gui/dialogs/about.c
index 956918b..1dca752 100644
--- a/src/gui/dialogs/about.c
+++ b/src/gui/dialogs/about.c
@@ -44,10 +44,10 @@ static void gtk_app_about_dialog_class_init(GtkAppAboutDialogClass *);
 static void gtk_app_about_dialog_init(GtkAppAboutDialog *);
 
 /* Supprime toutes les références externes. */
-static void gtk_app_about_dialog_dispose(GtkAppAboutDialog *);
+static void gtk_app_about_dialog_dispose(GObject *);
 
 /* Procède à la libération totale de la mémoire. */
-static void gtk_app_about_dialog_finalize(GtkAppAboutDialog *);
+static void gtk_app_about_dialog_finalize(GObject *);
 
 
 
@@ -74,22 +74,17 @@ static void gtk_app_about_dialog_class_init(GtkAppAboutDialogClass *class)
 
     object = G_OBJECT_CLASS(class);
 
-    object->dispose = (GObjectFinalizeFunc/* ! */)gtk_app_about_dialog_dispose;
-    object->finalize = (GObjectFinalizeFunc)gtk_app_about_dialog_finalize;
+    object->dispose = gtk_app_about_dialog_dispose;
+    object->finalize = gtk_app_about_dialog_finalize;
 
     widget = GTK_WIDGET_CLASS(class);
 
+    gtk_widget_class_set_css_name(widget, "aboutdialog");
+
     gtk_widget_class_add_binding_action(widget, GDK_KEY_Escape, 0, "window.close", NULL);
 
     gtk_widget_class_set_template_from_resource(widget, "/re/chrysalide/framework/gui/dialogs/about.ui");
 
-    gtk_widget_class_bind_template_child(widget, GtkAppAboutDialog, revision_0);
-    gtk_widget_class_bind_template_child(widget, GtkAppAboutDialog, revision_1);
-    gtk_widget_class_bind_template_child(widget, GtkAppAboutDialog, revision_2);
-    gtk_widget_class_bind_template_child(widget, GtkAppAboutDialog, revision_3);
-    gtk_widget_class_bind_template_child(widget, GtkAppAboutDialog, revision_4);
-    gtk_widget_class_bind_template_child(widget, GtkAppAboutDialog, revision_5);
-
 }
 
 
@@ -107,40 +102,14 @@ static void gtk_app_about_dialog_class_init(GtkAppAboutDialogClass *class)
 
 static void gtk_app_about_dialog_init(GtkAppAboutDialog *dialog)
 {
-    unsigned int revision;                  /* Numéro de révision          */
-    unsigned int max;                       /* Nbre. de boucles à effectuer*/
-    unsigned int i;                         /* Boucle de parcours          */
-    unsigned int level;                     /* Unité la plus importante    */
-    char buffer[64];                        /* Nom d'image à forger        */
-
     gtk_widget_init_template(GTK_WIDGET(dialog));
 
-    revision = REVISION;
-    max = log(revision) / log(10);
-
-    assert(max <= 6);
-
-    for (i = 0; i <= max; i++)
-    {
-        level = pow(10, max - i);
-
-        snprintf(buffer, 64, "/org/chrysalide/gui/dialogs/about/revision_%u.png", revision / level);
-
-        gtk_picture_set_resource(dialog->revisions[i], buffer);
-
-        revision %= level;
-
-    }
-
-    for (; i < 6; i++)
-        gtk_widget_set_visible(GTK_WIDGET(dialog->revisions[i]), FALSE);
-
 }
 
 
 /******************************************************************************
 *                                                                             *
-*  Paramètres  : dialog = instance d'objet GLib à traiter.                    *
+*  Paramètres  : object = instance d'objet GLib à traiter.                    *
 *                                                                             *
 *  Description : Supprime toutes les références externes.                     *
 *                                                                             *
@@ -150,18 +119,18 @@ static void gtk_app_about_dialog_init(GtkAppAboutDialog *dialog)
 *                                                                             *
 ******************************************************************************/
 
-static void gtk_app_about_dialog_dispose(GtkAppAboutDialog *dialog)
+static void gtk_app_about_dialog_dispose(GObject *object)
 {
-    gtk_widget_dispose_template(GTK_WIDGET(dialog), GTK_TYPE_APP_ABOUT_DIALOG);
+    gtk_widget_dispose_template(GTK_WIDGET(object), GTK_TYPE_APP_ABOUT_DIALOG);
 
-    G_OBJECT_CLASS(gtk_app_about_dialog_parent_class)->dispose(G_OBJECT(dialog));
+    G_OBJECT_CLASS(gtk_app_about_dialog_parent_class)->dispose(object);
 
 }
 
 
 /******************************************************************************
 *                                                                             *
-*  Paramètres  : dialog = instance d'objet GLib à traiter.                    *
+*  Paramètres  : object = instance d'objet GLib à traiter.                    *
 *                                                                             *
 *  Description : Procède à la libération totale de la mémoire.                *
 *                                                                             *
@@ -171,9 +140,9 @@ static void gtk_app_about_dialog_dispose(GtkAppAboutDialog *dialog)
 *                                                                             *
 ******************************************************************************/
 
-static void gtk_app_about_dialog_finalize(GtkAppAboutDialog *dialog)
+static void gtk_app_about_dialog_finalize(GObject *object)
 {
-    G_OBJECT_CLASS(gtk_app_about_dialog_parent_class)->finalize(G_OBJECT(dialog));
+    G_OBJECT_CLASS(gtk_app_about_dialog_parent_class)->finalize(object);
 
 }
 
diff --git a/src/gui/dialogs/about.css b/src/gui/dialogs/about.css
new file mode 100644
index 0000000..af3fa97
--- /dev/null
+++ b/src/gui/dialogs/about.css
@@ -0,0 +1,9 @@
+
+aboutdialog > box {
+
+    background-color: black;
+
+    background-image: url('resource:///re/chrysalide/framework/gui/dialogs/about/bg.png');
+    background-repeat: no-repeat;
+
+}
diff --git a/src/gui/dialogs/about.ui b/src/gui/dialogs/about.ui
index 989e53b..7b519d2 100644
--- a/src/gui/dialogs/about.ui
+++ b/src/gui/dialogs/about.ui
@@ -8,91 +8,13 @@
         <property name="modal">true</property>
         <property name="resizable">false</property>
 
-        <style>
-            <class name="black-bg"/>
-        </style>
-
         <child>
             <object class="GtkBox">
                 <property name="orientation">vertical</property>
-                <child>
-                    <object class="GtkPicture" id="logo">
-                        <property name="margin-top">10</property>
-                        <property name="file">resource://org/chrysalide/gui/dialogs/about/chrysalide-full.png</property>
-                    </object>
-                </child>
-
-                <!--
-                    Etage intermédiaire pour ne pas que l'image se voie allouer la largeur entière
-                    de la fenêtre. Sinon des marges sont placées autour du rendu lors que l'image
-                    n'est pas étendue pour couvrir cette largeur entière.
-                -->
-                <child>
-                    <object class="GtkBox">
-                        <property name="orientation">horizontal</property>
-                        <property name="halign">center</property>
-                        <property name="margin-top">14</property>
-                        <child>
-                            <object class="GtkPicture" id="text">
-                                <property name="width-request">253</property>
-                                <property name="file">resource:///org/chrysalide/gui/dialogs/about/chrysalide_text.png</property>
-                            </object>
-                        </child>
-                    </object>
-                </child>
-
-                <child>
-                    <object class="GtkBox">
-                        <property name="orientation">horizontal</property>
-                        <property name="margin-start">149</property>
-                        <child>
-                            <object class="GtkPicture" id="revision">
-                                <property name="width-request">14</property>
-                                <property name="file">resource:///org/chrysalide/gui/dialogs/about/revision.png</property>
-                            </object>
-                        </child>
-                        <child>
-                            <object class="GtkPicture" id="revision_0">
-                                <property name="width-request">14</property>
-                                <property name="file">resource:///org/chrysalide/gui/dialogs/about/revision.png</property>
-                            </object>
-                        </child>
-                        <child>
-                            <object class="GtkPicture" id="revision_1">
-                                <property name="width-request">14</property>
-                                <property name="file">resource:///org/chrysalide/gui/dialogs/about/revision.png</property>
-                            </object>
-                        </child>
-                        <child>
-                            <object class="GtkPicture" id="revision_2">
-                                <property name="width-request">14</property>
-                                <property name="file">resource:///org/chrysalide/gui/dialogs/about/revision.png</property>
-                            </object>
-                        </child>
-                        <child>
-                            <object class="GtkPicture" id="revision_3">
-                                <property name="width-request">14</property>
-                                <property name="file">resource:///org/chrysalide/gui/dialogs/about/revision.png</property>
-                            </object>
-                        </child>
-                        <child>
-                            <object class="GtkPicture" id="revision_4">
-                                <property name="width-request">14</property>
-                                <property name="file">resource:///org/chrysalide/gui/dialogs/about/revision.png</property>
-                            </object>
-                        </child>
-                        <child>
-                            <object class="GtkPicture" id="revision_5">
-                                <property name="width-request">14</property>
-                                <property name="file">resource:///org/chrysalide/gui/dialogs/about/revision.png</property>
-                            </object>
-                        </child>
-                    </object>
-                </child>
 
                 <child>
                     <object class="GtkLabel">
-                        <property name="margin-top">22</property>
+                        <property name="margin-top">368</property>
                         <property name="margin-bottom">10</property>
                         <property name="label" translatable="yes">&lt;span fgcolor='white'&gt;Copyright (C) 2008-2025 Cyrille Bagard&lt;/span&gt;</property>
                         <property name="use-markup">True</property>
diff --git a/src/gui/dialogs/gresource.xml b/src/gui/dialogs/gresource.xml
index 169f440..966d9c8 100644
--- a/src/gui/dialogs/gresource.xml
+++ b/src/gui/dialogs/gresource.xml
@@ -1,22 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gresources>
     <gresource prefix="/re/chrysalide/framework/gui/dialogs">
+        <file compressed="true">about.css</file>
         <file compressed="true">about.ui</file>
         <file compressed="true">preferences.ui</file>
     </gresource>
-    <gresource prefix="/org/chrysalide/gui/dialogs/about">
-      <file compressed="true" alias="chrysalide-full.png">../../../pixmaps/chrysalide-full.png</file>
-      <file compressed="true" alias="chrysalide_text.png">../../../pixmaps/chrysalide_text.png</file>
-      <file compressed="true" alias="revision.png">../../../pixmaps/revision.png</file>
-      <file compressed="true" alias="revision_0.png">../../../pixmaps/revision_0.png</file>
-      <file compressed="true" alias="revision_1.png">../../../pixmaps/revision_1.png</file>
-      <file compressed="true" alias="revision_2.png">../../../pixmaps/revision_2.png</file>
-      <file compressed="true" alias="revision_3.png">../../../pixmaps/revision_3.png</file>
-      <file compressed="true" alias="revision_4.png">../../../pixmaps/revision_4.png</file>
-      <file compressed="true" alias="revision_5.png">../../../pixmaps/revision_5.png</file>
-      <file compressed="true" alias="revision_6.png">../../../pixmaps/revision_6.png</file>
-      <file compressed="true" alias="revision_7.png">../../../pixmaps/revision_7.png</file>
-      <file compressed="true" alias="revision_8.png">../../../pixmaps/revision_8.png</file>
-      <file compressed="true" alias="revision_9.png">../../../pixmaps/revision_9.png</file>
-    </gresource>
 </gresources>
diff --git a/src/gui/style.css b/src/gui/style.css
index e21d931..dce41fa 100644
--- a/src/gui/style.css
+++ b/src/gui/style.css
@@ -36,11 +36,7 @@ list.boxed-list, list.boxed-list > row:last-child {
 
 /* about.css */
 
-.black-bg {
-
-    background-color: black;
-
-}
+@import url('resource:///re/chrysalide/framework/gui/dialogs/about.css');
 
 
 /* welcome.css */
diff --git a/tools/about/build.py b/tools/about/build.py
new file mode 100644
index 0000000..2267492
--- /dev/null
+++ b/tools/about/build.py
@@ -0,0 +1,120 @@
+
+# apt install libcairo2-dev pkg-config python3-dev
+# pip install pycairo
+
+import cairo
+import math
+import sys
+
+from enum import IntEnum
+
+from ttf import create_cairo_font_face_for_file
+
+
+WIDTH = 350
+HEIGHT = 430
+
+
+def deg2rad(degrees):
+    return degrees * (math.pi / 180)
+
+
+class TextAlignment(IntEnum):
+    LEFT = 1
+    CENTER = 2
+    RIGHT = 3
+
+
+def draw_text(ctx, text, pos, fsize, noise, theta = 0.0, align = TextAlignment.CENTER):
+    """Dessine un texte en respectant des propriétées."""
+
+    ctx.save()
+
+    ctx.set_font_size(fsize)
+
+    fascent, fdescent, fheight, fxadvance, fyadvance = ctx.font_extents()
+    x_off, y_off, tw, th = ctx.text_extents(text)[:4]
+
+    if align == TextAlignment.LEFT:
+        nx = 0
+    elif align == TextAlignment.RIGHT:
+        nx = -tw
+    else:
+        nx = -tw / 2.0
+
+    ny = fheight / 2
+
+    ctx.translate(pos[0], pos[1])
+    ctx.rotate(theta)
+    ctx.translate(nx, ny)
+    ctx.move_to(0,0)
+
+    ctx.text_path(text)
+    ctx.set_source_surface(noise, 0, -fheight)
+    ctx.fill_preserve()
+    ctx.set_source_rgb(1.0, 1.0, 1.0)
+    ctx.set_line_width(1)
+    ctx.stroke()
+
+    ctx.restore()
+
+
+if __name__ == '__main__':
+    """Point d'entrée du script."""
+
+    surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, WIDTH, HEIGHT)
+
+    cr = cairo.Context(surface)
+
+    face = create_cairo_font_face_for_file('cour10p_b.ttf')
+    cr.set_font_face(face)
+
+    noise = cairo.ImageSurface.create_from_png('noise.png')
+
+    # Type d'édition
+
+    if len(sys.argv) > 2:
+
+        draw_text(cr, sys.argv[2], [ 300, 25 ], 32, noise,
+                  theta = deg2rad(270), align = TextAlignment.RIGHT)
+
+        cr.set_source_rgb(0, 0, 0)
+        cr.paint_with_alpha(0.4)
+
+    # Numéro de version
+
+    draw_text(cr, sys.argv[1], [ 149, 10 + 259 + 14 + 42 + 2 ], 23, noise, align=TextAlignment.LEFT)
+
+    cr.set_source_rgb(0, 0, 0)
+    cr.paint_with_alpha(0.5)
+
+    # Logo
+
+    logo = cairo.ImageSurface.create_from_png('logo.png')
+
+    scale_y = 259 / logo.get_height()
+
+    cr.save()
+
+    cr.translate((WIDTH - (logo.get_width() * scale_y)) / 2, 12)
+
+    cr.scale(scale_y, scale_y)
+
+    cr.set_source_surface(logo, 0, 0)
+    cr.paint()
+
+    cr.restore()
+
+    # Titre
+
+    draw_text(cr, 'Chrysalide', [ WIDTH / 2, 10 + 259 + 14 + 4 ], 42, noise)
+
+    # cr.rectangle(265, 30, 10, 10)
+    # cr.set_source_rgb(1, 0, 0)
+    # cr.fill()
+
+    # cr.rectangle(265, 255, 10, 10)
+    # cr.set_source_rgb(1, 0, 0)
+    # cr.fill()
+
+    surface.write_to_png('bg.png')
diff --git a/tools/about/courier-10-pitch-bold_EQ97V.zip b/tools/about/courier-10-pitch-bold_EQ97V.zip
new file mode 100644
index 0000000..0585fe6
--- /dev/null
+++ b/tools/about/courier-10-pitch-bold_EQ97V.zip
diff --git a/tools/about/courier10point.zip b/tools/about/courier10point.zip
new file mode 100644
index 0000000..82cd0de
--- /dev/null
+++ b/tools/about/courier10point.zip
diff --git a/tools/about/gen.sh b/tools/about/gen.sh
new file mode 100755
index 0000000..c22ec59
--- /dev/null
+++ b/tools/about/gen.sh
@@ -0,0 +1,52 @@
+#!/bin/bash
+
+
+# Cf. https://stackoverflow.com/questions/59895/how-do-i-get-the-directory-where-a-bash-script-is-located-from-within-the-script/246128#246128
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+pushd $SCRIPT_DIR > /dev/null
+
+
+# Obtention de la police Courier-10-Pitch-Bold
+# --------------------------------------------
+
+# https://fontsgeek.com/fonts/Courier-10-Pitch-Bold
+# https://fontsgeek.com/terms-and-conditions
+
+# => courier-10-pitch-bold_EQ97V.zip
+
+
+# Courier 10 Pitch font missing after upgrade to 17.04?
+# https://askubuntu.com/questions/914352/courier-10-pitch-font-missing-after-upgrade-to-17-04
+
+# https://groups.google.com/g/trelby/c/CGkpcMBXW9U
+# -> http://www.trelby.org/files/release/font/courier10point.zip
+# --> https://web.archive.org/web/20140326080337/http://www.trelby.org/files/release/font/courier10point.zip
+
+# https://news.ycombinator.com/item?id=18802628
+# -> https://www.trelby.org/assets/courier10point.zip
+
+# => courier10point.zip
+
+if [ ! -f cour10p_b.ttf ]; then
+
+    unzip -p courier10point.zip courier10point/cour10p_b.ttf > cour10p_b.ttf
+
+fi
+
+
+# Construction de l'image de fond
+#--------------------------------
+
+if [ $# -lt 1 -o $# -gt 2 ]; then
+
+    echo "Usage: $0 <version> <edition>"
+    exit 123
+
+fi
+
+python3 ./build.py $*
+
+cp bg.png ../../src/data/images/about-bg.png
+
+popd > /dev/null
diff --git a/tools/about/logo.png b/tools/about/logo.png
new file mode 100644
index 0000000..9bf9969
--- /dev/null
+++ b/tools/about/logo.png
diff --git a/tools/about/noise.png b/tools/about/noise.png
new file mode 100644
index 0000000..b5d6b91
--- /dev/null
+++ b/tools/about/noise.png
diff --git a/tools/about/ttf.py b/tools/about/ttf.py
new file mode 100644
index 0000000..eb6c027
--- /dev/null
+++ b/tools/about/ttf.py
@@ -0,0 +1,111 @@
+
+# Source: https://www.cairographics.org/cookbook/freetypepython/
+
+import ctypes as ct
+import cairo
+
+_initialized = False
+def create_cairo_font_face_for_file (filename, faceindex=0, loadoptions=0):
+    "given the name of a font file, and optional faceindex to pass to FT_New_Face" \
+    " and loadoptions to pass to cairo_ft_font_face_create_for_ft_face, creates" \
+    " a cairo.FontFace object that may be used to render text with that font."
+    global _initialized
+    global _freetype_so
+    global _cairo_so
+    global _ft_lib
+    global _ft_destroy_key
+    global _surface
+
+    CAIRO_STATUS_SUCCESS = 0
+    FT_Err_Ok = 0
+
+    if not _initialized:
+        # find shared objects
+        _freetype_so = ct.CDLL("libfreetype.so.6")
+        _cairo_so = ct.CDLL("libcairo.so.2")
+        _cairo_so.cairo_ft_font_face_create_for_ft_face.restype = ct.c_void_p
+        _cairo_so.cairo_ft_font_face_create_for_ft_face.argtypes = [ ct.c_void_p, ct.c_int ]
+        _cairo_so.cairo_font_face_get_user_data.restype = ct.c_void_p
+        _cairo_so.cairo_font_face_get_user_data.argtypes = (ct.c_void_p, ct.c_void_p)
+        _cairo_so.cairo_font_face_set_user_data.argtypes = (ct.c_void_p, ct.c_void_p, ct.c_void_p, ct.c_void_p)
+        _cairo_so.cairo_set_font_face.argtypes = [ ct.c_void_p, ct.c_void_p ]
+        _cairo_so.cairo_font_face_status.argtypes = [ ct.c_void_p ]
+        _cairo_so.cairo_font_face_destroy.argtypes = (ct.c_void_p,)
+        _cairo_so.cairo_status.argtypes = [ ct.c_void_p ]
+        # initialize freetype
+        _ft_lib = ct.c_void_p()
+        status = _freetype_so.FT_Init_FreeType(ct.byref(_ft_lib))
+        if  status != FT_Err_Ok :
+            raise RuntimeError("Error %d initializing FreeType library." % status)
+        #end if
+
+        class PycairoContext(ct.Structure):
+            _fields_ = \
+                [
+                    ("PyObject_HEAD", ct.c_byte * object.__basicsize__),
+                    ("ctx", ct.c_void_p),
+                    ("base", ct.c_void_p),
+                ]
+        #end PycairoContext
+
+        _surface = cairo.ImageSurface(cairo.FORMAT_A8, 0, 0)
+        _ft_destroy_key = ct.c_int() # dummy address
+        _initialized = True
+    #end if
+
+    ft_face = ct.c_void_p()
+    cr_face = None
+    try :
+        # load FreeType face
+        status = _freetype_so.FT_New_Face(_ft_lib, filename.encode("utf-8"), faceindex, ct.byref(ft_face))
+        if status != FT_Err_Ok :
+            raise RuntimeError("Error %d creating FreeType font face for %s" % (status, filename))
+        #end if
+
+        # create Cairo font face for freetype face
+        cr_face = _cairo_so.cairo_ft_font_face_create_for_ft_face(ft_face, loadoptions)
+        status = _cairo_so.cairo_font_face_status(cr_face)
+        if status != CAIRO_STATUS_SUCCESS :
+            raise RuntimeError("Error %d creating cairo font face for %s" % (status, filename))
+        #end if
+        # Problem: Cairo doesn't know to call FT_Done_Face when its font_face object is
+        # destroyed, so we have to do that for it, by attaching a cleanup callback to
+        # the font_face. This only needs to be done once for each font face, while
+        # cairo_ft_font_face_create_for_ft_face will return the same font_face if called
+        # twice with the same FT Face.
+        # The following check for whether the cleanup has been attached or not is
+        # actually unnecessary in our situation, because each call to FT_New_Face
+        # will return a new FT Face, but we include it here to show how to handle the
+        # general case.
+        if _cairo_so.cairo_font_face_get_user_data(cr_face, ct.byref(_ft_destroy_key)) == None :
+            status = _cairo_so.cairo_font_face_set_user_data \
+              (
+                cr_face,
+                ct.byref(_ft_destroy_key),
+                ft_face,
+                _freetype_so.FT_Done_Face
+              )
+            if status != CAIRO_STATUS_SUCCESS :
+                raise RuntimeError("Error %d doing user_data dance for %s" % (status, filename))
+            #end if
+            ft_face = None # Cairo has stolen my reference
+        #end if
+
+        # set Cairo font face into Cairo context
+        cairo_ctx = cairo.Context(_surface)
+        cairo_t = PycairoContext.from_address(id(cairo_ctx)).ctx
+        _cairo_so.cairo_set_font_face(cairo_t, cr_face)
+        status = _cairo_so.cairo_font_face_status(cairo_t)
+        if status != CAIRO_STATUS_SUCCESS :
+            raise RuntimeError("Error %d creating cairo font face for %s" % (status, filename))
+        #end if
+
+    finally :
+        _cairo_so.cairo_font_face_destroy(cr_face)
+        _freetype_so.FT_Done_Face(ft_face)
+    #end try
+
+    # get back Cairo font face as a Python object
+    face = cairo_ctx.get_font_face()
+    return face
+#end create_cairo_font_face_for_file