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/* Chrysalide - Outil d'analyse de fichiers binaires
* hexview.c - affichage de contenus de binaire
*
* Copyright (C) 2016-2024 Cyrille Bagard
*
* This file is part of Chrysalide.
*
* Chrysalide 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.
*
* Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>.
*/
#include "hexview.h"
#include "area.h"
/* Composant d'affichage générique (instance) */
struct _GtkHexView
{
GtkWidget parent; /* A laisser en premier */
GtkWidget *offsets; /* Affichage des positions */
GtkWidget *hex; /* Affichage des octets brut */
GtkWidget *ascii; /* Affichage des imprimables */
};
/* Composant d'affichage générique (classe) */
struct _GtkHexViewClass
{
GtkWidgetClass parent; /* A laisser en premier */
};
/* Procède à l'initialisation de l'afficheur générique. */
static void gtk_hex_view_class_init(GtkHexViewClass *);
/* Procède à l'initialisation de l'afficheur générique. */
static void gtk_hex_view_init(GtkHexView *);
/* Supprime toutes les références externes. */
static void gtk_hex_view_dispose(GtkHexView *);
/* Procède à la libération totale de la mémoire. */
static void gtk_hex_view_finalize(GtkHexView *);
void demo_snapshot (GtkWidget *widget, GtkSnapshot *snapshot);
void demo_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum_size,
int *natural_size,
int *minimum_baseline,
int *natural_baseline);
/* Détermine le type du composant d'affichage générique. */
G_DEFINE_TYPE(GtkHexView, gtk_hex_view, GTK_TYPE_WIDGET);
/******************************************************************************
* *
* Paramètres : class = classe GTK à initialiser. *
* *
* Description : Procède à l'initialisation de l'afficheur générique. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
static void gtk_hex_view_class_init(GtkHexViewClass *class)
{
GObjectClass *object; /* Plus haut niveau équivalent */
GtkWidgetClass *widget; /* Classe de haut niveau */
object = G_OBJECT_CLASS(class);
object->dispose = (GObjectFinalizeFunc/* ! */)gtk_hex_view_dispose;
object->finalize = (GObjectFinalizeFunc)gtk_hex_view_finalize;
widget = GTK_WIDGET_CLASS(class);
gtk_widget_class_set_css_name(widget, "GtkHexView");
gtk_widget_class_set_layout_manager_type(widget, GTK_TYPE_BOX_LAYOUT);
g_type_ensure(GTK_TYPE_COMPOSING_AREA);
gtk_widget_class_set_template_from_resource(widget, "/re/chrysalide/framework/gtkext/hexview.ui");
gtk_widget_class_bind_template_child(widget, GtkHexView, offsets);
gtk_widget_class_bind_template_child(widget, GtkHexView, hex);
gtk_widget_class_bind_template_child(widget, GtkHexView, ascii);
//widget->snapshot = demo_snapshot;
//widget->measure = demo_measure;
/*
*/
/*
widget->destroy = gtk_hex_view_destroy;
widget->realize = gtk_hex_view_realize;
widget->size_allocate = gtk_hex_view_size_allocate;
widget->get_preferred_height = gtk_hex_view_get_preferred_height;
widget->get_preferred_width = gtk_hex_view_get_preferred_width;
*/
}
/******************************************************************************
* *
* Paramètres : view = composant GTK à initialiser. *
* *
* Description : Procède à l'initialisation de l'afficheur générique. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
static void gtk_hex_view_init(GtkHexView *view)
{
gtk_widget_init_template(GTK_WIDGET(view));
g_object_set(G_OBJECT(view->offsets), "width-request", 30, NULL);
g_object_set(G_OBJECT(view->ascii), "width-request", 230, NULL);
g_raw_scan_cache_register_snapshot(GTK_COMPOSING_AREA(view->offsets), demo_snapshot, GTK_WIDGET(view));
g_raw_scan_cache_register_snapshot(GTK_COMPOSING_AREA(view->hex), demo_snapshot, GTK_WIDGET(view));
g_raw_scan_cache_register_snapshot(GTK_COMPOSING_AREA(view->ascii), demo_snapshot, GTK_WIDGET(view));
}
/******************************************************************************
* *
* Paramètres : view = instance d'objet GLib à traiter. *
* *
* Description : Supprime toutes les références externes. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
static void gtk_hex_view_dispose(GtkHexView *view)
{
gtk_widget_dispose_template(GTK_WIDGET(view), GTK_TYPE_HEX_VIEW);
G_OBJECT_CLASS(gtk_hex_view_parent_class)->dispose(G_OBJECT(view));
}
/******************************************************************************
* *
* Paramètres : view = instance d'objet GLib à traiter. *
* *
* Description : Procède à la libération totale de la mémoire. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
static void gtk_hex_view_finalize(GtkHexView *view)
{
G_OBJECT_CLASS(gtk_hex_view_parent_class)->finalize(G_OBJECT(view));
}
void demo_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum_size,
int *natural_size,
int *minimum_baseline,
int *natural_baseline)
{
printf("set size\n");
*minimum_size = 100;
*natural_size = 200;
}
void demo_snapshot (GtkWidget *widget, GtkSnapshot *snapshot)
{
GdkRGBA red, green, yellow, blue;
float w, h;
gdk_rgba_parse (&red, "red");
gdk_rgba_parse (&green, "green");
gdk_rgba_parse (&yellow, "yellow");
gdk_rgba_parse (&blue, "blue");
w = gtk_widget_get_width (widget) / 2.0;
h = gtk_widget_get_height (widget) / 2.0;
gtk_snapshot_append_color (snapshot, &red,
&GRAPHENE_RECT_INIT(0, 0, w, h));
gtk_snapshot_append_color (snapshot, &green,
&GRAPHENE_RECT_INIT(w, 0, w, h));
gtk_snapshot_append_color (snapshot, &yellow,
&GRAPHENE_RECT_INIT(0, h, w, h));
gtk_snapshot_append_color (snapshot, &blue,
&GRAPHENE_RECT_INIT(w, h, w, h));
/*
printf("[widget] CSS name: %s\n", gtk_widget_get_css_name(widget));
char **iter;
iter = gtk_widget_get_css_classes(widget);
while (*iter)
printf("[widget] CSS classes: %s\n", *iter);
*/
}
#if 0
/******************************************************************************
* *
* Paramètres : widget = composant GTK à examiner. *
* minimum = largeur minimale à préciser ou NULL. [OUT] *
* natural = largeur idéale à préciser ou NULL. [OUT] *
* *
* Description : Fournit la largeur idéale pour le composant d'affichage. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
static void gtk_hex_view_get_preferred_width(GtkWidget *widget, gint *minimum, gint *natural)
{
GtkHexView *panel; /* Autre version du composant */
gint req; /* Dimension requise */
panel = GTK_HEX_VIEW(widget);
GTK_HEX_VIEW_GET_CLASS(widget)->compute_size(panel, &req, NULL);
req *= panel->scale;
if (minimum != NULL) *minimum = req;
if (natural != NULL) *natural = req;
}
/******************************************************************************
* *
* Paramètres : panel = composant GTK à venir consulter. *
* cr = contexte graphique associé à l'événement. *
* *
* Description : Dessine si besoin est une bordure autour du composant. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
void gtk_hex_view_draw_border(GtkHexView *panel, cairo_t *cr)
{
GtkWidget *widget; /* Autre version du composant */
GtkStyleContext *context; /* Contexte du thème actuel */
GdkRGBA color; /* Couleur de thème récupérée */
GtkRequisition req; /* Taille allouée à l'élément */
GtkAllocation area; /* Emplacement à considérer */
if (panel->show_border)
{
widget = GTK_WIDGET(panel);
gtk_widget_get_preferred_size(widget, NULL, &req);
context = gtk_widget_get_style_context(widget);
gtk_style_context_save(context);
gtk_style_context_add_class(context, GTK_STYLE_CLASS_FRAME);
gtk_style_context_get(gtk_widget_get_style_context(widget),
gtk_widget_get_state_flags(widget),
GTK_STYLE_PROPERTY_COLOR, &color, NULL);
cairo_set_source_rgba(cr, color.red, color.green, color.blue, color.alpha);
cairo_set_line_width(cr, 1.0);
gtk_widget_get_preferred_size(GTK_WIDGET(panel), NULL, &req);
area.x = 0;
area.y = 0;
area.width = req.width;
area.height = req.height;
gtk_hex_view_define_border_path(panel, cr, &area);
cairo_stroke(cr);
gtk_style_context_restore(context);
}
}
#endif
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