Introduced zoom in graph view.

3 files changed, 92 insertions, 5 deletions

diff --git a/src/gui/menus/menubar.c b/src/gui/menus/menubar.c
index aa89a13..d386362 100644
--- a/src/gui/menus/menubar.c
+++ b/src/gui/menus/menubar.c
@@ -309,7 +309,7 @@ static void change_menubar_current_view(GMenuBar *bar, GLoadedPanel *old, GLoade
 
     rebuild_menu_view_for_view(bar->view, new);
 
-    update_access_for_view_in_menu_view(G_EDITOR_ITEM(bar)->ref, new);
+    update_access_for_view_in_menu_view(new);
 
     update_access_for_view_in_menu_binary(new);
 
diff --git a/src/gui/menus/view.c b/src/gui/menus/view.c
index 255f1d9..018cfbf 100644
--- a/src/gui/menus/view.c
+++ b/src/gui/menus/view.c
@@ -40,6 +40,7 @@
 #include "../core/panels.h"
 #include "../../analysis/loaded.h"
 #include "../../gtkext/easygtk.h"
+#include "../../gtkext/gtkdisplaypanel.h"
 #include "../../gtkext/gtkgraphdisplay.h"
 
 
@@ -65,6 +66,9 @@ static void handle_loaded_panel_first_allocation(GtkWidget *, GdkRectangle *, GL
 /* Effectue la bascule d'un panneau de chargement à un autre. */
 static void change_current_view_support(unsigned int);
 
+/* Réagit avec le menu "Affichage -> Zoom *". */
+static void mcb_view_zoom(GtkCheckMenuItem *, gpointer );
+
 /* Réagit avec le menu "Affichage -> (colonne xxx)". */
 static void mcb_view_display_column(GtkCheckMenuItem *, gpointer);
 
@@ -126,6 +130,28 @@ GtkWidget *build_menu_view(GObject *ref, GMenuBar *bar)
     /* Séparation */
 
     submenuitem = qck_create_menu_separator();
+    gtk_container_add(GTK_CONTAINER(menubar), submenuitem);
+
+    /* Zooms */
+
+    submenuitem = qck_create_menu_item(ref, "mnu_view_zoom_in", _("Zoom in"),
+                                       G_CALLBACK(mcb_view_zoom), GINT_TO_POINTER(0));
+    add_accelerator_to_widget(submenuitem, "<Ctrl>plus");
+    gtk_container_add(GTK_CONTAINER(menubar), submenuitem);
+
+    submenuitem = qck_create_menu_item(ref, "mnu_view_zoom_out", _("Zoom out"),
+                                       G_CALLBACK(mcb_view_zoom), GINT_TO_POINTER(1));
+    add_accelerator_to_widget(submenuitem, "<Ctrl>minus");
+    gtk_container_add(GTK_CONTAINER(menubar), submenuitem);
+
+    submenuitem = qck_create_menu_item(ref, "mnu_view_zoom_reset", _("Reset zoom"),
+                                       G_CALLBACK(mcb_view_zoom), GINT_TO_POINTER(2));
+    add_accelerator_to_widget(submenuitem, "<Ctrl>0");
+    gtk_container_add(GTK_CONTAINER(menubar), submenuitem);
+
+    /* Séparation */
+
+    submenuitem = qck_create_menu_separator();
     g_object_set_data(ref, "mnu_view_start_options", submenuitem);
     gtk_container_add(GTK_CONTAINER(menubar), submenuitem);
 
@@ -399,8 +425,7 @@ void rebuild_menu_view_for_view(GtkWidget *widget, GLoadedPanel *new)
 
 /******************************************************************************
 *                                                                             *
-*  Paramètres  : ref   = espace de référencements à consulter.                *
-*                panel = panneau d'affichage actif ou NULL si aucun.          *
+*  Paramètres  : new = nouvelle vue du contenu chargé analysé.                *
 *                                                                             *
 *  Description : Met à jour les accès du menu "Affichage" selon le contenu.   *
 *                                                                             *
@@ -410,12 +435,31 @@ void rebuild_menu_view_for_view(GtkWidget *widget, GLoadedPanel *new)
 *                                                                             *
 ******************************************************************************/
 
-void update_access_for_view_in_menu_view(GObject *ref, GLoadedPanel *panel)
+void update_access_for_view_in_menu_view(GLoadedPanel *new)
 {
+    GObject *ref;                           /* Espace de référencements    */
+    gboolean access;                        /* Accès à déterminer          */
+    GtkWidget *item;                        /* Elément de menu à traiter   */
+
+    ref = get_global_ref();
+
     /* Bascules */
 
     update_switch_access_in_menu_view();
 
+    /* Zooms */
+
+    access = GTK_IS_GRAPH_DISPLAY(new);
+
+    item = GTK_WIDGET(g_object_get_data(ref, "mnu_view_zoom_in"));
+    gtk_widget_set_sensitive(item, access);
+
+    item = GTK_WIDGET(g_object_get_data(ref, "mnu_view_zoom_out"));
+    gtk_widget_set_sensitive(item, access);
+
+    item = GTK_WIDGET(g_object_get_data(ref, "mnu_view_zoom_reset"));
+    gtk_widget_set_sensitive(item, access);
+
 }
 
 
@@ -843,6 +887,49 @@ static void change_current_view_support(unsigned int wanted)
 
 /******************************************************************************
 *                                                                             *
+*  Paramètres  : menuitem = élément de menu sélectionné.                      *
+*                data     = données indiquant la nature du zoom.              *
+*                                                                             *
+*  Description : Réagit avec le menu "Affichage -> Zoom *".                   *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void mcb_view_zoom(GtkCheckMenuItem *menuitem, gpointer data)
+{
+    GtkDisplayPanel *panel;                 /* Afficheur effectif de code  */
+    double scale;                           /* Echelle à appliquer         */
+
+    panel = GTK_DISPLAY_PANEL(get_current_view());
+
+    scale = gtk_display_panel_get_scale(panel);
+
+    switch (GPOINTER_TO_INT(data))
+    {
+        case 0:
+            scale /= 1.25;
+            break;
+
+        case 1:
+            scale *= 1.25;
+            break;
+
+        case 2:
+            scale = 1.0;
+            break;
+
+    }
+
+    gtk_display_panel_set_scale(panel, scale);
+
+}
+
+
+/******************************************************************************
+*                                                                             *
 *  Paramètres  : menuitem = élément de menu ayant basculé.                    *
 *                unused   = adresse non utilisée ici.                         *
 *                                                                             *
diff --git a/src/gui/menus/view.h b/src/gui/menus/view.h
index 2271d4c..d3d70ab 100644
--- a/src/gui/menus/view.h
+++ b/src/gui/menus/view.h
@@ -44,7 +44,7 @@ void rebuild_menu_view_for_content(GtkWidget *, GLoadedContent *);
 void rebuild_menu_view_for_view(GtkWidget *, GLoadedPanel *);
 
 /* Met à jour les accès du menu "Affichage" selon le contenu. */
-void update_access_for_view_in_menu_view(GObject *, GLoadedPanel *);
+void update_access_for_view_in_menu_view(GLoadedPanel *);
 
 /* Réagit avec le menu "Affichage -> Panneaux latéraux". */
 void mcb_view_update_side_panels_list(GtkMenuItem *, GMenuBar *);