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authorCyrille Bagard <nocbos@gmail.com>2012-11-02 15:50:07 (GMT)
committerCyrille Bagard <nocbos@gmail.com>2012-11-02 15:50:07 (GMT)
commitf5df6496fa50927d3d274c939a888afde652b7ad (patch)
tree281dbfdfdcb8765fea7036af274c63fb5acde8ff /src/gtkext/graph
parentc3aba0893c29cc098c029306fd7a4c8c1fa2eee2 (diff)
Improved the computing and the rendering of the graphic view.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@277 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/gtkext/graph')
-rwxr-xr-xsrc/gtkext/graph/Makefile.am18
-rw-r--r--src/gtkext/graph/dot.c267
-rw-r--r--src/gtkext/graph/dot.h51
-rw-r--r--src/gtkext/graph/layout.c229
-rw-r--r--src/gtkext/graph/layout.h41
-rw-r--r--src/gtkext/graph/node.c353
-rw-r--r--src/gtkext/graph/node.h74
7 files changed, 1033 insertions, 0 deletions
diff --git a/src/gtkext/graph/Makefile.am b/src/gtkext/graph/Makefile.am
new file mode 100755
index 0000000..a631a90
--- /dev/null
+++ b/src/gtkext/graph/Makefile.am
@@ -0,0 +1,18 @@
+
+noinst_LTLIBRARIES = libgtkextgraph.la
+
+libgtkextgraph_la_SOURCES = \
+ dot.h dot.c \
+ layout.h layout.c \
+ node.h node.c
+
+libgtkextgraph_la_LDFLAGS =
+
+
+INCLUDES = $(LIBGTK_CFLAGS) $(LIBXML_CFLAGS) $(LIBGRAPH_CFLAGS)
+
+AM_CPPFLAGS =
+
+AM_CFLAGS = $(DEBUG_CFLAGS) $(WARNING_FLAGS) $(COMPLIANCE_FLAGS)
+
+SUBDIRS =
diff --git a/src/gtkext/graph/dot.c b/src/gtkext/graph/dot.c
new file mode 100644
index 0000000..396aa93
--- /dev/null
+++ b/src/gtkext/graph/dot.c
@@ -0,0 +1,267 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * dot.c - interactions avec le système dot
+ *
+ * Copyright (C) 2009-2012 Cyrille Bagard
+ *
+ * This file is part of OpenIDA.
+ *
+ * OpenIDA 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.
+ *
+ * OpenIDA 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "dot.h"
+
+
+#include <malloc.h>
+#include <graphviz/gvc.h>
+#include <graphviz/types.h>
+
+
+
+/* Graphique selon Graphviz */
+struct _graph_layout
+{
+ GVC_t *context; /* Contexte pour Graphviz */
+ graph_t *graph; /* Graphique construit */
+
+};
+
+
+
+/******************************************************************************
+* *
+* Paramètres : cmds = description textuelle du graphique à représenter. *
+* *
+* Description : Charge un graphique à partir de sa description. *
+* *
+* Retour : Bilan de l'opération. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+graph_layout *create_graph_layout(char *cmds)
+{
+ graph_layout *result; /* Composants à retourner */
+ int ret; /* Bilan d'un appel */
+
+ result = (graph_layout *)calloc(1, sizeof(graph_layout));
+
+ result->context = gvContext();
+ result->graph = agmemread(cmds);
+
+ if (result->graph == NULL) goto cdl_error;
+
+
+
+ //printf("CMDS =======\n%s\n\n=================\n", cmds);
+
+ ret = gvLayout(result->context, result->graph, "dot");
+ if (ret != 0) goto cdl_error;
+
+
+ //printf("ret = %d\n", ret);
+
+ /*
+ ret = gvLayoutJobs(result->context, result->graph);
+ printf("ret = %d\n", ret);
+ ret = gvRenderJobs(result->context, result->graph);
+ printf("ret = %d\n", ret);
+ */
+
+ ret = gvRender(result->context, result->graph, "dot", NULL);
+ if (ret != 0) goto cdl_error;
+
+
+
+ //ret = gvRender(result->context, result->graph, "plain", NULL);
+
+ //printf("ret = %d\n", ret);
+
+
+
+
+
+ return result;
+
+ cdl_error:
+
+ delete_graph_layout(result);
+
+ return NULL;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : layout = graphique à supprimer de la mémoire. *
+* *
+* Description : Décharge un graphique. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+void delete_graph_layout(graph_layout *layout)
+{
+ if (layout->graph != NULL)
+ {
+ gvFreeLayout(layout->context, layout->graph);
+ agclose(layout->graph);
+ }
+
+ gvFreeContext(layout->context);
+
+ free(layout);
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : layout = graphique à supprimer de la mémoire. *
+* view = support de destination. *
+* nodes = liste de noeuds à traiter. *
+* count = taille de la liste. *
+* *
+* Description : Place tous les éléments du graphique à l'écran. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+void place_nodes_of_graph_layout(const graph_layout *layout, GtkGraphView *view, GGraphNode **nodes, size_t count)
+{
+ int height; /* Hauteur du graphique */
+ node_t *iter; /* Boucle de parcours */
+ GGraphNode *node; /* Intermédiaire concerné */
+
+ height = GD_bb(layout->graph).UR.y;
+
+ for (iter = agfstnode(layout->graph); iter != NULL; iter = agnxtnode(layout->graph, iter))
+ {
+ node = find_graph_node_by_name(nodes, count, iter->name);
+ g_graph_node_place(node, view, iter->u.coord.x, height - iter->u.coord.y);
+ }
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : layout = graphique à supprimer de la mémoire. *
+* count = nombre d'éléments mis en place. *
+* nodes = liste de noeuds à consulter. *
+* ncount = taille de la liste des noeuds. *
+* *
+* Description : Charge la définition de tous les liens graphiques. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+GtkLinkRenderer **create_links_from_graph_layout(const graph_layout *layout, size_t *count, GGraphNode **nodes, size_t ncount)
+{
+ GtkLinkRenderer **result; /* Liste à retourner */
+ int height; /* Hauteur du graphique */
+ node_t *niter; /* Boucle de parcours #1 */
+ edge_t *eiter; /* Boucle de parcours #2 */
+ GdkPoint *points; /* Points de ligne relus */
+ size_t points_count; /* Nombre de ces points */
+ splines *lines; /* Lignes déjà tracées */
+ GGraphNode *node; /* Noeud rattaché */
+ int i; /* Boucle de parcours #3 */
+ int k; /* Boucle de parcours #4 */
+ bezier *bez; /* Courbe à reproduire */
+ Agsym_t *attrib; /* Couleur d'un lien */
+ LinkColor color; /* Couleur d'impression */
+
+ result = NULL;
+ *count = 0;
+
+ height = GD_bb(layout->graph).UR.y;
+
+ for (niter = agfstnode(layout->graph); niter != NULL; niter = agnxtnode(layout->graph, niter))
+ for (eiter = agfstout(layout->graph, niter); eiter != NULL; eiter = agnxtout(layout->graph, eiter))
+ {
+ points = NULL;
+ points_count = 0;
+
+ lines = ED_spl(eiter);
+
+ /* Raccordement au point de départ */
+
+ node = find_graph_node_by_name(nodes, ncount, agtail(eiter)->name);
+
+ g_graph_node_connect(node,
+ lines->list[0].list[0].x,
+ height - lines->list[0].list[0].y,
+ &points, &points_count);
+
+ /* Tracé du lien... */
+
+ for (i = 0; i < lines->size; i++)
+ {
+ bez = &lines->list[i];
+
+ points = (GdkPoint *)realloc(points, (points_count + bez->size) * sizeof(GdkPoint));
+
+ for (k = 0; k < bez->size; k++)
+ {
+ points[points_count + k].x = bez->list[k].x;
+ points[points_count + k].y = height - bez->list[k].y;
+ }
+
+ points_count += bez->size;
+
+ }
+
+ /* Raccordement au point d'arrivée */
+
+ node = find_graph_node_by_name(nodes, ncount, aghead(eiter)->name);
+
+ g_graph_node_connect(node,
+ bez->list[k - 1].x,
+ height - bez->list[k - 1].y,
+ &points, &points_count);
+
+ /* Détermination de la couleur */
+
+ attrib = agfindedgeattr(agraphof(agtail(eiter)), "color");
+
+ result = (GtkLinkRenderer **)realloc(result, ++(*count) * sizeof(GtkLinkRenderer *));
+
+ if (eiter->attr[attrib->index][0] == 'g') /* "green" */
+ color = LKC_GREEN;
+ else if (eiter->attr[attrib->index][0] == 'r') /* "red" */
+ color = LKC_RED;
+ else
+ color = LKC_DEFAULT;
+
+ result[*count - 1] = GTK_LINK_RENDERER(gtk_link_renderer_new(color,
+ points, points_count));
+
+ }
+
+ return result;
+
+}
diff --git a/src/gtkext/graph/dot.h b/src/gtkext/graph/dot.h
new file mode 100644
index 0000000..d610e1b
--- /dev/null
+++ b/src/gtkext/graph/dot.h
@@ -0,0 +1,51 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * dot.h - prototypes pour les interactions avec le système dot
+ *
+ * Copyright (C) 2009 Cyrille Bagard
+ *
+ * This file is part of OpenIDA.
+ *
+ * OpenIDA 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.
+ *
+ * OpenIDA 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef _GRAPH_DOT_H
+#define _GRAPH_DOT_H
+
+
+#include "node.h"
+#include "../gtklinkrenderer.h"
+
+
+
+/* Graphique selon Graphviz */
+typedef struct _graph_layout graph_layout;
+
+
+/* Charge un graphique à partir de sa description. */
+graph_layout *create_graph_layout(char *);
+
+/* Décharge un graphique. */
+void delete_graph_layout(graph_layout *);
+
+/* Place tous les éléments du graphique à l'écran. */
+void place_nodes_of_graph_layout(const graph_layout *, GtkGraphView *, GGraphNode **, size_t);
+
+/* Charge la définition de tous les liens graphiques. */
+GtkLinkRenderer **create_links_from_graph_layout(const graph_layout *, size_t *, GGraphNode **, size_t);
+
+
+
+#endif /* _GRAPH_DOT_H */
diff --git a/src/gtkext/graph/layout.c b/src/gtkext/graph/layout.c
new file mode 100644
index 0000000..69e32cc
--- /dev/null
+++ b/src/gtkext/graph/layout.c
@@ -0,0 +1,229 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * layout.c - mise en place de graphique
+ *
+ * Copyright (C) 2009-2012 Cyrille Bagard
+ *
+ * This file is part of OpenIDA.
+ *
+ * OpenIDA 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.
+ *
+ * OpenIDA 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "layout.h"
+
+
+#include <malloc.h>
+#include <string.h>
+#include <gtk/gtkfixed.h>
+
+
+#include "dot.h"
+#include "node.h"
+#include "../gtkbufferview.h"
+#include "../../analysis/binary.h"
+#include "../../common/extstr.h"
+
+
+
+/* Taille maximale des descriptions de liens */
+#define LINKS_DESC_LEN 128
+
+
+/* Etablit tous les liens entre les différents morceaux de code. */
+static char *complete_graph_links(const GtkGraphView *, GtkViewPanel **, size_t, char *);
+
+
+
+/******************************************************************************
+* *
+* Paramètres : view = support où placer les différents éléments. *
+* views = morceaux de code à afficher de façon organisée. *
+* count = quantité de ces morceaux de code. *
+* *
+* Description : Dispose une série de morceaux d'affichage en graphique. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+bool build_graph_view(GtkGraphView *view, GtkViewPanel **views, size_t count)
+{
+ GGraphNode **nodes; /* Intermédiaires en place */
+ size_t i; /* Boucle de parcours */
+ char *cmds; /* Description à envoyer à dot */
+ graph_layout *layout; /* Graphique construit */
+ GtkLinkRenderer **links; /* Liens graphiques construits */
+ size_t links_count; /* Quantité de ces liens */
+
+ /* Création de la glue */
+
+ nodes = (GGraphNode **)calloc(count, sizeof(GGraphNode *));
+
+ for (i = 0; i < count; i++)
+ nodes[i] = g_graph_node_new(GTK_WIDGET(views[i]));
+
+ /* Définition du graphique */
+
+ cmds = strdup("digraph G {\noverlap=false;\n splines=ortho;\n compound=true;\n");
+
+ for (i = 0; i < count; i++)
+ cmds = g_graph_node_register_for_dot(nodes[i], cmds);
+
+ cmds = complete_graph_links(view, views, count, cmds);
+
+ cmds = stradd(cmds, "}");
+
+ layout = create_graph_layout(cmds);
+
+ /* Affichage du graphique */
+
+ place_nodes_of_graph_layout(layout, view, nodes, count);
+
+ links = create_links_from_graph_layout(layout, &links_count, nodes, count);
+ gtk_graph_view_attach_links(view, links, links_count);
+
+ gtk_widget_queue_draw(GTK_WIDGET(view));
+
+ delete_graph_layout(layout);
+
+ /* TODO : free nodes */
+
+ return true;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : view = support contenant les différentes lignes. *
+* views = morceaux de code à afficher de façon organisée. *
+* count = quantité de ces morceaux de code. *
+* desc = description du graphique à compléter. [OUT] *
+* *
+* Description : Etablit tous les liens entre les différents morceaux de code.*
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static char *complete_graph_links(const GtkGraphView *view, GtkViewPanel **views, size_t count, char *desc)
+{
+ GLoadedBinary *binary; /* Binaire rattaché aux vues */
+ GArchInstruction *instrs; /* Instructions pour assembleur*/
+ GBufferView *buffer; /* Tampon d'une partie de code */
+ vmpa_t end; /* Adresse finale du tampon */
+ size_t i; /* Boucle de parcours #1 */
+ GArchInstruction *last; /* Dernière instruc. d'un bloc */
+ vmpa_t addr; /* Addresse d'instruction */
+ GArchInstruction **dests; /* Instr. visée par une autre */
+ InstructionLinkType *types; /* Type de lien entre lignes */
+ size_t dcount; /* Nombre de liens de dest. */
+ size_t j; /* Boucle de parcours #2 */
+ size_t k; /* Boucle de parcours #3 */
+ char cmd[LINKS_DESC_LEN]; /* Tampon pour l'ajout de liens*/
+ GArchInstruction *next; /* Instruction suivante */
+
+ if (count == 0)
+ return desc;
+
+ binary = gtk_view_panel_get_binary(views[0]);
+ instrs = g_loaded_binary_get_instructions(binary);
+
+ for (i = 0; i < count; i++)
+ {
+ buffer = gtk_buffer_view_get_buffer(GTK_BUFFER_VIEW(views[i]));
+ g_buffer_view_get_restrictions(buffer, NULL, &end);
+
+ last = g_arch_instruction_find_by_address(instrs, end, true);
+ g_arch_instruction_get_location(last, NULL, NULL, &addr);
+
+ if (g_arch_instruction_has_destinations(last))
+ {
+ dcount = g_arch_instruction_get_destinations(last, &dests, &types);
+
+ for (j = 0; j < dcount; j++)
+ {
+ g_arch_instruction_get_location(dests[j], NULL, NULL, &addr);
+
+ for (k = 0; k < count; k++)
+ if (gtk_view_panel_contain_address(views[k], addr))
+ break;
+
+ if (k < count)
+ switch (types[j])
+ {
+ case ILT_JUMP:
+ snprintf(cmd, LINKS_DESC_LEN,
+ "_%p:s -> _%p:n [ltail=cluster_%p, lhead=cluster_%p];\n",
+ views[i], views[k], views[i], views[k]);
+ desc = stradd(desc, cmd);
+ break;
+
+ case ILT_JUMP_IF_TRUE:
+ snprintf(cmd, LINKS_DESC_LEN,
+ "_%p:s -> _%p:n [ltail=cluster_%p, lhead=cluster_%p, " \
+ "color=green];\n",
+ views[i], views[k], views[i], views[k]);
+ desc = stradd(desc, cmd);
+ break;
+
+ case ILT_JUMP_IF_FALSE:
+ snprintf(cmd, LINKS_DESC_LEN,
+ "_%p:s -> _%p:n [ltail=cluster_%p, lhead=cluster_%p, " \
+ "color=red];\n",
+ views[i], views[k], views[i], views[k]);
+ desc = stradd(desc, cmd);
+ break;
+
+ default:
+ break;
+
+ }
+
+ }
+
+ }
+
+ /* Sinon on suit le flux normal */
+ else
+ {
+ next = g_arch_instruction_get_next_iter(instrs, last, VMPA_MAX);
+ if (next == NULL) continue;
+
+ g_arch_instruction_get_location(next, NULL, NULL, &addr);
+
+ for (k = 0; k < count; k++)
+ if (gtk_view_panel_contain_address(views[k], addr))
+ break;
+
+ if (k < count)
+ {
+ snprintf(cmd, LINKS_DESC_LEN,
+ "_%p:s -> _%p:n [ltail=cluster_%p, lhead=cluster_%p];\n",
+ views[i], views[k], views[i], views[k]);
+ desc = stradd(desc, cmd);
+ }
+
+ }
+
+ }
+
+ return desc;
+
+}
diff --git a/src/gtkext/graph/layout.h b/src/gtkext/graph/layout.h
new file mode 100644
index 0000000..ffb227f
--- /dev/null
+++ b/src/gtkext/graph/layout.h
@@ -0,0 +1,41 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * layout.h - prototypes pour la mise en place de graphique
+ *
+ * Copyright (C) 2009-2012 Cyrille Bagard
+ *
+ * This file is part of OpenIDA.
+ *
+ * OpenIDA 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.
+ *
+ * OpenIDA 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef _GRAPH_LAYOUT_H
+#define _GRAPH_LAYOUT_H
+
+
+#include <stdbool.h>
+
+
+#include "../gtkgraphview.h"
+#include "../gtkviewpanel.h"
+
+
+
+/* Dispose une série de morceaux d'affichage en graphique. */
+bool build_graph_view(GtkGraphView *, GtkViewPanel **, size_t);
+
+
+
+#endif /* _GRAPH_LAYOUT_H */
diff --git a/src/gtkext/graph/node.c b/src/gtkext/graph/node.c
new file mode 100644
index 0000000..f3e6352
--- /dev/null
+++ b/src/gtkext/graph/node.c
@@ -0,0 +1,353 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * node.c - éléments de graphiques chez dot
+ *
+ * Copyright (C) 2009-2012 Cyrille Bagard
+ *
+ * This file is part of OpenIDA.
+ *
+ * OpenIDA 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.
+ *
+ * OpenIDA 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "node.h"
+
+
+#include <malloc.h>
+#include <stdio.h>
+#include <string.h>
+
+
+#include "../../common/extstr.h"
+
+
+
+/* -------------------------- GESTION DES NOEUDS A L'UNITE -------------------------- */
+
+
+/* Intermédiaire entre le noeud dot et la bribe de code (instance) */
+struct _GGraphNode
+{
+ GObject parent; /* A laisser en premier */
+
+ GtkWidget *view; /* Morceau de code représenté */
+ char *name; /* Adresse sous forme humaine */
+
+ GtkAllocation alloc; /* Emplacement du bloc rattaché*/
+
+};
+
+
+/* Intermédiaire entre le noeud dot et la bribe de code (classe) */
+struct _GGraphNodeClass
+{
+ GObjectClass parent; /* A laisser en premier */
+
+ double dpi_x; /* Résolution en abscisse */
+ double dpi_y; /* Résolution en ordonnée */
+
+};
+
+
+/* Initialise la classe des intermédiaires avec les noeuds dot. */
+static void g_graph_node_class_init(GGraphNodeClass *);
+
+/* Initialise la classe des intermédiaires avec les noeuds dot. */
+static void g_graph_node_init(GGraphNode *);
+
+
+
+/* ---------------------------------------------------------------------------------- */
+/* GESTION DES NOEUDS A L'UNITE */
+/* ---------------------------------------------------------------------------------- */
+
+
+/* Indique le type définit par la GLib pour le noeud. */
+G_DEFINE_TYPE(GGraphNode, g_graph_node, G_TYPE_OBJECT);
+
+
+/******************************************************************************
+* *
+* Paramètres : klass = classe à initialiser. *
+* *
+* Description : Initialise la classe des intermédiaires avec les noeuds dot. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static void g_graph_node_class_init(GGraphNodeClass *klass)
+{
+ GdkScreen *screen; /* Ecran par défaut */
+ gint width; /* Largeur d'écran en pixels */
+ gint height; /* Hauteur d'écran en pixels */
+ gint width_mm; /* Largeur d'écran en mm. */
+ gint height_mm; /* Hauteur d'écran en mm. */
+
+ screen = gdk_screen_get_default();
+
+ width = gdk_screen_get_width(screen);
+ height = gdk_screen_get_height(screen);
+
+ width_mm = gdk_screen_get_width_mm(screen);
+ height_mm = gdk_screen_get_height_mm(screen);
+
+ /**
+ * Il y a 2.54 centimètres, soit 25.4 millimètres, dans un pouce.
+ * On a donc :
+ *
+ * dpi = N pixels / (M millimètres / (25.4 millimètres / 1 pouce))
+ * = N pixels / (M pouces / 25.4)
+ * = N * 25.4 pixels / M pouces
+ *
+ */
+
+ if (width_mm > 0 && height_mm > 0)
+ {
+ klass->dpi_x = (width * 25.4) / (double)width_mm;
+ klass->dpi_y = (height * 25.4) / (double)height_mm;
+ }
+ else
+ {
+ klass->dpi_x = 96;
+ klass->dpi_y = 96;
+ }
+
+
+ klass->dpi_x = 72;
+ klass->dpi_y = 72;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : node = instance à initialiser. *
+* *
+* Description : Initialise la classe des intermédiaires avec les noeuds dot. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static void g_graph_node_init(GGraphNode *node)
+{
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : view = morceau d'affichage à représenter. *
+* *
+* Description : Constitue un intermédiaire entre un noeud dot et du code. *
+* *
+* Retour : Adresse de la structure mise en place. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+GGraphNode *g_graph_node_new(GtkWidget *view)
+{
+ GGraphNode *result; /* Structure à retourner */
+ size_t len; /* Taille du nom */
+
+ result = g_object_new(G_TYPE_GRAPH_NODE, NULL);
+
+ result->view = view;
+
+ len = 3 + sizeof(GtkWidget *) * 2 + 1;
+
+ result->name = (char *)calloc(len, sizeof(char));
+ snprintf(result->name, len, "_%p", result->view);
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : node = intermédiaire à consulter. *
+* cmds = description pour dot à compléter. *
+* *
+* Description : Déclare l'intermédiaire en tant que noeud pour dot. *
+* *
+* Retour : Description dûment complétée. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+char *g_graph_node_register_for_dot(const GGraphNode *node, char *cmds)
+{
+ GtkRequisition requisition; /* Taille à l'écran requise */
+ char buffer[128];
+
+ gtk_widget_size_request(node->view, &requisition);
+
+ snprintf(buffer, 128, " subgraph cluster%s {\n", node->name);
+ cmds = stradd(cmds, buffer);
+
+ cmds = stradd(cmds, " style=invisible;\n");
+
+ cmds = stradd(cmds, " ");
+ cmds = stradd(cmds, node->name);
+ cmds = stradd(cmds, " [shape=box, fixedsize ");
+
+ snprintf(buffer, 128, ", width=\"%g\"",
+ requisition.width / G_GRAPH_NODE_GET_CLASS(node)->dpi_x);
+ cmds = stradd(cmds, buffer);
+
+ snprintf(buffer, 128, ", height=\"%g\"",
+ requisition.height / G_GRAPH_NODE_GET_CLASS(node)->dpi_y);
+ cmds = stradd(cmds, buffer);
+
+ cmds = stradd(cmds, "];\n");
+
+ cmds = stradd(cmds, " }\n");
+
+ return cmds;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : node = intermédiaire à consulter. *
+* view = support de destination. *
+* x = abscisse du point d'intégration. *
+* y = ordonnée du point d'intégration. *
+* *
+* Description : Place le morceau de code de l'intermédiaire à l'écran. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+void g_graph_node_place(GGraphNode *node, GtkGraphView *view, gint x, gint y)
+{
+ GtkRequisition requisition; /* Taille à l'écran actuelle */
+
+ gtk_widget_size_request(node->view, &requisition);
+
+ x -= requisition.width / 2;
+ y -= requisition.height / 2;
+
+ gtk_graph_view_put(view, node->view, x, y);
+
+ node->alloc.x = x;
+ node->alloc.y = y;
+ node->alloc.width = requisition.width;
+ node->alloc.height = requisition.height;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : node = intermédiaire à consulter. *
+* x = abscisse du point à relier. *
+* y = ordonnée du point à relier. *
+* points = liste de points à mettre à jour. [OUT] *
+* count = taille de cette même liste. [OUT] *
+* *
+* Description : Etablit une jonction ferme avec un noeud. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+void g_graph_node_connect(const GGraphNode *node, gint x, gint y, GdkPoint **points, size_t *count)
+{
+ const GtkAllocation *alloc; /* Emplacement du bloc rattaché*/
+
+ alloc = &node->alloc;
+
+ *points = (GdkPoint *)realloc(*points, ++(*count) * sizeof(GdkPoint));
+
+ /* Si le point est sur la gauche... */
+ if (alloc->y <= y && y < (alloc->y + alloc->height) && x < alloc->x)
+ {
+ (*points)[*count - 1].x = alloc->x;
+ (*points)[*count - 1].y = y;
+ }
+
+ /* Si le point est sur la droite... */
+ else if (alloc->y <= y && y < (alloc->y + alloc->height) && x > (alloc->x + alloc->width))
+ {
+ (*points)[*count - 1].x = alloc->x + alloc->width;
+ (*points)[*count - 1].y = y;
+ }
+
+ /* Si le point est au dessus... */
+ else if (alloc->x <= x && x < (alloc->x + alloc->width) && y < alloc->y)
+ {
+ (*points)[*count - 1].x = x;
+ (*points)[*count - 1].y = alloc->y;
+ }
+
+ /* Si le point est en dessous... */
+ else if (alloc->x <= x && x < (alloc->x + alloc->width) && y > (alloc->y + alloc->height))
+ {
+ (*points)[*count - 1].x = x;
+ (*points)[*count - 1].y = alloc->y + alloc->height;
+ }
+
+}
+
+
+
+/* ---------------------------------------------------------------------------------- */
+/* MANIPULATION D'ENSEMBLES DE NOEUDS */
+/* ---------------------------------------------------------------------------------- */
+
+
+/******************************************************************************
+* *
+* Paramètres : nodes = liste de noeuds à parcourir. *
+* count = taille de la liste. *
+* target = nom du noeud recherché. *
+* *
+* Description : Recherche un noeud donné dans une série de noeuds. *
+* *
+* Retour : Noeud trouvé ou NULL si aucun. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+GGraphNode *find_graph_node_by_name(GGraphNode **nodes, size_t count, const char *target)
+{
+ GGraphNode *result; /* Trouvaille à remonter */
+ size_t i; /* Boucle de parcours */
+
+ result = NULL;
+
+ for (i = 0; i < count && result == NULL; i++)
+ if (strcmp(nodes[i]->name, target) == 0)
+ result = nodes[i];
+
+ return result;
+
+}
diff --git a/src/gtkext/graph/node.h b/src/gtkext/graph/node.h
new file mode 100644
index 0000000..515c92b
--- /dev/null
+++ b/src/gtkext/graph/node.h
@@ -0,0 +1,74 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * node.h - prototypes pour les éléments de graphiques chez dot
+ *
+ * Copyright (C) 2009-2012 Cyrille Bagard
+ *
+ * This file is part of OpenIDA.
+ *
+ * OpenIDA 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.
+ *
+ * OpenIDA 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef _GRAPH_NODE_H
+#define _GRAPH_NODE_H
+
+
+#include "../gtkgraphview.h"
+
+
+
+/* -------------------------- GESTION DES NOEUDS A L'UNITE -------------------------- */
+
+
+#define G_TYPE_GRAPH_NODE g_graph_node_get_type()
+#define G_GRAPH_NODE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), g_graph_node_get_type(), GGraphNode))
+#define G_IS_GRAPH_NODE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), g_graph_node_get_type()))
+#define G_GRAPH_NODE_GET_IFACE(inst) (G_TYPE_INSTANCE_GET_INTERFACE((inst), g_graph_node_get_type(), GGraphNodeIface))
+#define G_GRAPH_NODE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_GRAPH_NODE, GGraphNodeClass))
+
+
+/* Intermédiaire entre le noeud dot et la bribe de code (instance) */
+typedef struct _GGraphNode GGraphNode;
+
+/* Intermédiaire entre le noeud dot et la bribe de code (classe) */
+typedef struct _GGraphNodeClass GGraphNodeClass;
+
+
+/* Indique le type définit par la GLib pour le noeud. */
+GType g_graph_node_get_type(void);
+
+/* Constitue un intermédiaire entre un noeud dot et du code. */
+GGraphNode *g_graph_node_new(GtkWidget *);
+
+/* Déclare l'intermédiaire en tant que noeud pour dot. */
+char *g_graph_node_register_for_dot(const GGraphNode *, char *);
+
+/* Place le morceau de code de l'intermédiaire à l'écran. */
+void g_graph_node_place(GGraphNode *, GtkGraphView *, gint , gint);
+
+/* Etablit une jonction ferme avec un noeud. */
+void g_graph_node_connect(const GGraphNode *, gint, gint, GdkPoint **, size_t *);
+
+
+
+/* ----------------------- MANIPULATION D'ENSEMBLES DE NOEUDS ----------------------- */
+
+
+/* Recherche un noeud donné dans une série de noeuds. */
+GGraphNode *find_graph_node_by_name(GGraphNode **, size_t, const char *);
+
+
+
+#endif /* _GRAPH_NODE_H */