Bonjour
je rencontre un problème sur un programme de portage de gtksourceview3 d’une ancienne version de fait que j’ai installé sur un PC Ubuntu 14 lorsque je passe sous ubuntu 16.

je n’ai pas trouvé d’instruction sous l’ancienne version gtksourceview3 pour donner la version mais j’ai établi sous ubuntu 16 que la version Gtksourceview : 3.20.4
pour gtk 3.20.9


voici mon programme gtksource_08.c
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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#include <gtk/gtk.h>
#include <gtksourceview/gtksource.h>
#include <gtksourceview/gtksourcebuffer.h>
///#include "/usr/include/gtksourceview-3.0/gtksourceview/gtksourcelanguage.h"
///#include "/usr/include/gtksourceview-3.0/gtksourceview/gtksourcelanguagemanager.h"
#include <gtksourceview/completion-providers/words/gtksourcecompletionwords.h>
 
//gtksourceview_08.c
/*  Compile with:
 *  gcc -std=c11 -Wall -fmax-errors=10 -Wextra gtksourceview_08.c -o gtksourceview_08 `pkg-config --cflags --libs gtk+-3.0 gtksourceview-3.0`
 */
int CB_DEBUG = TRUE;
static void
create_tags (GtkTextBuffer *buffer)
{
  /* Create a bunch of tags. Note that it's also possible to
   * create tags with gtk_text_tag_new() then add them to the
   * tag table for the buffer, gtk_text_buffer_create_tag() is
   * just a convenience function. Also note that you don't have
   * to give tags a name; pass NULL for the name to create an
   * anonymous tag.
   *
   * In any real app, another useful optimization would be to create
   * a GtkTextTagTable in advance, and reuse the same tag table for
   * all the buffers with the same tag set, instead of creating
   * new copies of the same tags for every buffer.
   *
   * Tags are assigned default priorities in order of addition to the
   * tag table.  That is, tags created later that affect the same text
   * property affected by an earlier tag will override the earlier
   * tag.  You can modify tag priorities with
   * gtk_text_tag_set_priority().
   */
 
 
  gtk_text_buffer_create_tag (buffer, "big",
                              /* points times the PANGO_SCALE factor */
                              "size", 20 * PANGO_SCALE, NULL);
 
  gtk_text_buffer_create_tag (buffer, "xx-small",
                              "scale", PANGO_SCALE_XX_SMALL, NULL);
 
  gtk_text_buffer_create_tag (buffer, "x-large",
                              "scale", PANGO_SCALE_X_LARGE, NULL);
 
  gtk_text_buffer_create_tag (buffer, "monospace",
                              "family", "monospace", NULL);
 
  gtk_text_buffer_create_tag (buffer, "blue_foreground",
                              "foreground", "blue", NULL);
 
  gtk_text_buffer_create_tag (buffer, "red_background",
                              "background", "red", NULL);
 
  gtk_text_buffer_create_tag (buffer, "big_gap_before_line",
                              "pixels_above_lines", 30, NULL);
 
  gtk_text_buffer_create_tag (buffer, "big_gap_after_line",
                              "pixels_below_lines", 30, NULL);
 
  gtk_text_buffer_create_tag (buffer, "double_spaced_line",
                              "pixels_inside_wrap", 10, NULL);
 
  gtk_text_buffer_create_tag (buffer, "not_editable",
                              "editable", FALSE, NULL);
 
  gtk_text_buffer_create_tag (buffer, "word_wrap",
                              "wrap_mode", GTK_WRAP_WORD, NULL);
 
  gtk_text_buffer_create_tag (buffer, "char_wrap",
                              "wrap_mode", GTK_WRAP_CHAR, NULL);
 
  gtk_text_buffer_create_tag (buffer, "no_wrap",
                              "wrap_mode", GTK_WRAP_NONE, NULL);
 
  gtk_text_buffer_create_tag (buffer, "center",
                              "justification", GTK_JUSTIFY_CENTER, NULL);
 
  gtk_text_buffer_create_tag (buffer, "right_justify",
                              "justification", GTK_JUSTIFY_RIGHT, NULL);
 
  gtk_text_buffer_create_tag (buffer, "wide_margins",
                              "left_margin", 50, "right_margin", 50,
                              NULL);
 
  gtk_text_buffer_create_tag (buffer, "strike",
                              "strikethrough", TRUE, NULL);
 
 
 
  gtk_text_buffer_create_tag (buffer, "superscript",
                              "rise", 10 * PANGO_SCALE,   /* 10 pixels */
                              "size", 8 * PANGO_SCALE,    /* 8 points */
                              NULL);
 
  gtk_text_buffer_create_tag (buffer, "subscript",
                              "rise", -10 * PANGO_SCALE,   /* 10 pixels */
                              "size", 8 * PANGO_SCALE,     /* 8 points */
                              NULL);
 
  gtk_text_buffer_create_tag (buffer, "rtl_quote",
                              "wrap_mode", GTK_WRAP_WORD,
                              "direction", GTK_TEXT_DIR_RTL,
                              "indent", 30,
                              "left_margin", 20,
                              "right_margin", 20,
                              NULL);
  gtk_text_buffer_create_tag (buffer, "heading", "weight", PANGO_WEIGHT_BOLD,
                              "size", 15 * PANGO_SCALE,   NULL);
 
 
 
  gtk_text_buffer_create_tag (buffer, "ultralight-weight",  "weight", PANGO_WEIGHT_ULTRALIGHT, NULL);
  gtk_text_buffer_create_tag (buffer, "light_weight",  "weight", PANGO_WEIGHT_LIGHT, NULL);
  gtk_text_buffer_create_tag (buffer, "normal_weight",  "weight", PANGO_WEIGHT_NORMAL, NULL);
  gtk_text_buffer_create_tag (buffer, "bold_weight",  "weight", PANGO_WEIGHT_BOLD, NULL);
  gtk_text_buffer_create_tag (buffer, "ultrabold_weight",  "weight", PANGO_WEIGHT_ULTRABOLD, NULL);
  gtk_text_buffer_create_tag (buffer, "heavy_weight",  "weight", PANGO_WEIGHT_HEAVY, NULL);
 
 
  gtk_text_buffer_create_tag (buffer, "no_underline","underline", PANGO_UNDERLINE_NONE, NULL);
  gtk_text_buffer_create_tag (buffer, "underline","underline", PANGO_UNDERLINE_SINGLE, NULL);
  gtk_text_buffer_create_tag (buffer, "double_underline","underline", PANGO_UNDERLINE_DOUBLE, NULL);   
  gtk_text_buffer_create_tag (buffer, "low_underline","underline", PANGO_UNDERLINE_LOW, NULL);         
 
  gtk_text_buffer_create_tag (buffer, "normal","style", PANGO_STYLE_NORMAL, NULL);                   
  gtk_text_buffer_create_tag (buffer, "oblique","style", PANGO_STYLE_OBLIQUE, NULL);     
  gtk_text_buffer_create_tag (buffer, "italic",  "style", PANGO_STYLE_ITALIC, NULL);
 
}
/**********************************************/
/* série de callback pour le toolbar de base  */
/**********************************************/
void cb_ButtonClicked_toTwoToolBar( GtkWidget *widget,GdkEvent  *event,  gpointer   toolbar )
{
	gtk_widget_show (toolbar);
	(void)widget;
	(void)event;
}
 
void cb_ButtonClicked_toNew( GtkWidget *widget,GdkEvent  *event,  gpointer   data )
{
	(void)widget;
	(void)event;
	(void)data;
}
 
void cb_ButtonClicked_toOpen( GtkWidget *widget,GdkEvent  *event,  gpointer   data )
{
	(void)widget;
	(void)event;
	(void)data;
}
 
void cb_ButtonClicked_toRecent( GtkWidget *widget,GdkEvent  *event,  gpointer   data )
{
	(void)widget;
	(void)event;
	(void)data;
}
 
void cb_ButtonClicked_toSave( GtkWidget *widget,GdkEvent  *event,  gpointer   data )
{
	(void)widget;
	(void)event;
	(void)data;
}
 
void cb_ButtonClicked_toSaveAs( GtkWidget *widget,GdkEvent  *event,  gpointer   data )
{
	(void)widget;
	(void)event;
	(void)data;
}
 
void cb_ButtonClicked_toClose( GtkWidget *widget,GdkEvent  *event,  gpointer   data )
{
	(void)widget;
	(void)event;
	(void)data;
}
 
void cb_ButtonClicked_toSelectionClear( GtkWidget *widget,GdkEvent  *event,  gpointer   data )
{
	(void)widget;
	(void)event;
	(void)data;
}
 
void cb_ButtonClicked_toCopy( GtkWidget *widget,GdkEvent  *event,  gpointer   data )
{
	(void)widget;
	(void)event;
	(void)data;
}
 
void cb_ButtonClicked_toPaste( GtkWidget *widget,GdkEvent  *event,  gpointer   data )
{
	(void)widget;
	(void)event;
	(void)data;
}
 
void cb_ButtonClicked_toRedo( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	if (gtk_source_buffer_can_redo(GTK_SOURCE_BUFFER(buffer)) ) 
	{
		gtk_source_buffer_redo(GTK_SOURCE_BUFFER(buffer)) ;
	}
	return ;
	(void)widget;
	(void)event;
}
 
void cb_ButtonClicked_toUndo( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	if (gtk_source_buffer_can_undo(GTK_SOURCE_BUFFER(buffer)) ) 
	{
		gtk_source_buffer_undo(GTK_SOURCE_BUFFER(buffer)) ;
	}
	return ;
	(void)widget;
	(void)event;
}
 
void cb_ButtonClicked_toSelectionAll( GtkWidget *widget,GdkEvent  *event,  gpointer   data )
{
	(void)widget;
	(void)event;
	(void)data;
}
 
void cb_ButtonClicked_toPolice( GtkWidget *widget,GdkEvent  *event, gpointer sourceview )
{
	/* a voir pour initialiser le dialogue avec la font courante */
 
	/* Creates a new GtkFontChooserDialog */
	GtkWidget * font_chooser_dialog;
	//gint *response ;
	gchar * font;
	font_chooser_dialog = gtk_font_chooser_dialog_new (NULL, NULL);
	// tester sans response = suis sur que ca le fait
	//response = 
	gtk_dialog_run (GTK_DIALOG (font_chooser_dialog));
 
	font = gtk_font_chooser_get_font(GTK_FONT_CHOOSER(font_chooser_dialog));
	/* contrairement à d'autre box dialog il faut chercher si une font a été 
	 * sélectionnée ou pas
	 */
	if (font != NULL)
	{
		const PangoFontDescription *description = gtk_font_chooser_get_font_desc(GTK_FONT_CHOOSER(font_chooser_dialog));
		gtk_font_chooser_set_font_desc(GTK_FONT_CHOOSER(font_chooser_dialog), description);
		gtk_widget_override_font (sourceview,description);
    }
    gtk_widget_destroy (font_chooser_dialog);
	(void)widget;
	(void)event;
}
void text_action( gpointer buffer,gchar * tag)
{
	/* modifie une zone de texte */
	GtkTextIter start;
    GtkTextIter end;
	if (gtk_text_buffer_get_selection_bounds (GTK_TEXT_BUFFER(buffer), &start, &end))
	{
		gtk_text_buffer_apply_tag_by_name(GTK_TEXT_BUFFER(buffer),tag, &start, &end);
	}
}
 
void cb_ButtonClicked_toNormal( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	/* "efface tous les  tags ??? */
	GtkTextIter start;
    GtkTextIter end;
	if (gtk_text_buffer_get_selection_bounds (GTK_TEXT_BUFFER(buffer), &start, &end))
	{
		g_print ("efface les tags ????????\n");
		gtk_text_buffer_remove_all_tags(GTK_TEXT_BUFFER(buffer), &start, &end);
	}
	(void)widget;
	(void)event;
}
 
void cb_ButtonClicked_toBold( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	text_action(buffer,"bold_weight"); //tag action = "bold_weight"
	(void)widget;
	(void)event;
}
 
void cb_ButtonClicked_toIndentLess( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}
 
void cb_ButtonClicked_toIndentMore( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}
 
void cb_ButtonClicked_toStrikethrough( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	text_action(buffer,"strike"); //tag action = "strike"
	(void)widget;
	(void)event;
}
 
void cb_ButtonClicked_toItalic( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	text_action(buffer,"italic"); //tag action = "italic"
	(void)widget;
	(void)event;
}
 
void cb_ButtonClicked_toUnderline( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	text_action(buffer,"underline"); //tag action = "underline";
	(void)widget;
	(void)event;
}	
 
void cb_ButtonClicked_toJustifyLeft( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	text_action(buffer,"left_justify"); //tag action = "left_justify"
	(void)widget;
	(void)event;
}
 
void cb_ButtonClicked_toJustifyCenter( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	text_action(buffer,"center"); //tag action = "center_justify"
	(void)widget;
	(void)event;
}
 
void cb_ButtonClicked_toJustifyRight( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	text_action(buffer,"right_justify"); //tag action = "right_justify"
	(void)widget;
	(void)event;
}
 
void cb_ButtonClicked_toJustifyFill( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}
 
void cb_ButtonClicked_toExit( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	gtk_main_quit();
	(void)widget;
	(void)event;
	(void)buffer;
}
/*********************************************/
/* série de callback pour le toolbar_advance */
/*********************************************/
void cb_ButtonClicked_toOneToolBar( GtkWidget *widget,GdkEvent  *event,  gpointer   toolbar )
{
	gtk_widget_hide (toolbar);
	(void)widget;
	(void)event;
}
 
void cb_ButtonClicked_toOngletFirst( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}
 
void cb_ButtonClicked_toOngletPrevious( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}
 
void cb_ButtonClicked_toOngletNext( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}
 
void cb_ButtonClicked_toOngletLast( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}
 
void cb_ButtonClicked_toSearch( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}
 
void cb_ButtonClicked_toFind( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}
 
void cb_ButtonClicked_toReplace( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}
 
void cb_ButtonClicked_toClear( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	GtkTextIter start;
    GtkTextIter end;
    gtk_source_buffer_remove_source_marks (GTK_SOURCE_BUFFER(buffer), &start, &end,NULL);
	(void)widget;
	(void)event;
}	
 
void cb_ButtonClicked_toPreference( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}	
 
void cb_ButtonClicked_toHelp( GtkWidget *widget,GdkEvent  *event,  gpointer   buffer )
{
	(void)widget;
	(void)event;
	(void)buffer;
}
 
GtkWidget * create_toolbar_advance(GtkSourceBuffer *buffer)
/* toolbar advance  pour les fonctions complementaires */
{
	GtkToolItem *item;
	GtkToolItem *Separator;
 
	GtkWidget *toolbar_advance = gtk_toolbar_new ();
	gtk_widget_set_valign (toolbar_advance, GTK_ALIGN_CENTER);
 
	/* gestion des onglets */
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-first");
	gtk_tool_item_set_tooltip_markup(GTK_TOOL_ITEM (item), "Va vers le premier onglet");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toOngletFirst),NULL);
 
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-previous");
	gtk_tool_item_set_tooltip_markup(GTK_TOOL_ITEM (item), "Va vers l'onglet précédent");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toOngletPrevious),NULL);
 
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-next");
	gtk_tool_item_set_tooltip_markup(GTK_TOOL_ITEM (item), "Va vers l'onglet suivant");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toOngletNext),NULL);
 
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-last");
	gtk_tool_item_set_tooltip_markup(GTK_TOOL_ITEM (item), "Va vers le dernier onglet");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toOngletLast),NULL);
 
    /* Avec des séparateurs */
	Separator = gtk_separator_tool_item_new();
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), Separator, -1);
	/* fin separator */
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "edit-find");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "<b>Recherchez</b> dans le texte....\nEt marque les occurrences trouvées");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toFind),NULL);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "system-search");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Effectuer une <b>recherche</b> dans le texte....");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toSearch),NULL);
 
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "edit-clear-symbolic");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Retire toutes les marques");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toClear),buffer);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "edit-find-replace");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "<b>Recherchez</b> et <b>remplacez</b> dans le texte....");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toReplace),NULL);
 
	/* Avec des séparateurs */
	Separator = gtk_separator_tool_item_new();
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), Separator, -1);
	/* fin separator */
 
    item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "go-bottom");//fin de document
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "va tout en bas du document");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toReplace),NULL);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "go-top");//début de document
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "va tout en haut du document");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toReplace),NULL);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "go-down");//page suivante
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "va en bas du document");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toReplace),NULL);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "go-up");//page précente
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "va en haut du document");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toReplace),NULL);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "go-first");//début de ligne
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "va au début de la ligne");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toReplace),NULL);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "go-home");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "va tout en haut du document et au début de la ligne");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toReplace),NULL);
 
    /* Avec des séparateurs */
	Separator = gtk_separator_tool_item_new();
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), Separator, -1);
	/* fin separator */
 
	/* on reprend des trucs classiques */
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item),"preferences-system");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "accède aux préférences");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toPreference),NULL);
 
	/* Avec des séparateurs */
	Separator = gtk_separator_tool_item_new();
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), Separator, -1);
	/* fin separator */
 
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item),"help-about");
	gtk_widget_set_tooltip_text (GTK_WIDGET (item), "A l'aide !!!!!");
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toHelp),NULL);
	/* Avec des séparateurs */
	Separator = gtk_separator_tool_item_new();
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar_advance), Separator, -1);
 
 
	/*
        #autre icone possible
        #button_search.set_icon_name("accessories-calculator")
        #button_search.set_icon_name("face-laugh")
        #button_search.set_icon_name("face-raspberry")
        #button_search.set_icon_name("format-text-strikethrough")
        "                            "format-text-direction-ltr", left
        "                             format-text-direction-rtl", right
    
        */
	return toolbar_advance;
}
 
GtkWidget * create_toolbar (GtkWidget *sourceview,GtkSourceBuffer *buffer)
/* toolbar de base pour les fonctions courantes */
{
	GtkToolItem *item;
	GtkToolItem *Separator;
 
	GtkWidget *toolbar = gtk_toolbar_new ();
	gtk_widget_set_valign (toolbar, GTK_ALIGN_CENTER);
 
	/* production d'un lot de bouton */
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "document-new");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Nouveau document");
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toNew),buffer);
 
	item = gtk_tool_button_new (NULL,NULL);
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item),"document-open");
	gtk_tool_item_set_tooltip_markup(GTK_TOOL_ITEM (item), "<b>Ouvrir</b> un fichier texte existant");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toOpen),buffer);
 
	item = gtk_tool_button_new (NULL,NULL);
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item),"document-open-recent");
	gtk_tool_item_set_tooltip_markup(GTK_TOOL_ITEM (item), "<b>Ouvrir</b> un fichier traité récemment");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toRecent),buffer);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "document-save");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "<b>Enregistrez</b> le fichier courant");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toSave),buffer);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "document-save-as");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "<b>Enregistrez</b> sous ....");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toSaveAs),buffer);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "process-stop");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "<b>Fermer le document</b> ");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toClose),buffer);
 
	/* Avec des séparateurs */
	Separator = gtk_separator_tool_item_new();
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), Separator, -1);
	/* fin separator */
 
    item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "edit-clear");//pour effacer la sélection
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "pour effacer la sélection");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toSelectionClear),buffer);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "edit-copy");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "copie la sélection");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toCopy),buffer);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "edit-paste");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "colle la sélection au curseur courant");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toPaste),buffer);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "edit-redo");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Rétablit la partie supprimée");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toRedo),buffer);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "edit-undo");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "annule la derniere opération\n les caractères sont regroupés par mot");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toUndo),buffer);
 
	item = gtk_tool_button_new (NULL,NULL );
	gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON (item), "edit-select-all");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Sélectionne la totalité du texte");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toSelectionAll),buffer);
 
	/* Avec des séparateurs */
	Separator = gtk_separator_tool_item_new();
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), Separator, -1);
	/* fin separator */
 
	/* choix de la police */
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item),"preferences-desktop-font");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Choix de la police");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toPolice),sourceview);
 
	/* la gestion des formats de polices */
	item = gtk_tool_button_new (NULL, "normal");
	gtk_tool_item_set_is_important(item, TRUE);
	//gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "format-text-bold-symbolic");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Mettez la sélection en <b>normal</b>");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toNormal),buffer);
 
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "format-text-bold-symbolic");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Mettez la sélection en <b>gras</b>");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toBold),buffer);
 
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "format-text-strikethrough");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Mettez format-text-strikethrough");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toStrikethrough),buffer);
 
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "format-text-italic-symbolic");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Mettez la sélection en <span font_style='italic' ><b>italique</b></span>");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toItalic),buffer);
 
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "format-text-underline-symbolic");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Mettez la sélection en <u>souligné</u>");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toUnderline),buffer);
 
	/* Avec des séparateurs */
	Separator = gtk_separator_tool_item_new();
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), Separator, -1);
	/* fin separator */
 
    item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "format-indent-less");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), " retrait d'une tabulation");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toIndentLess),buffer);
 
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "format-indent-more");
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Ajout d'une tabulation");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toIndentMore),buffer);
 
	/* des boutons tool radio pour le choix de la justification gauche droite  milieu 
	 * avec par défaut à gauche
	 * reste à trouver comment jouer avec les 4 buttontool pou 1/4 
	 */
	GSList *group=NULL;
	GtkToolItem *buttontool;
 
	buttontool = gtk_radio_tool_button_new(NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON(buttontool),"format-justify-left-symbolic");
	gtk_widget_set_tooltip_markup (GTK_WIDGET (buttontool), "Justifiez le texte à gauche");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), buttontool, -1);
	gtk_radio_tool_button_set_group (GTK_RADIO_TOOL_BUTTON (buttontool),group);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toJustifyLeft),buffer);
 
	/* par defaut c'est la justicition à gauche */
	//gtk_toggle_tool_button_set_active (GTK_TOGGLE_TOOL_BUTTON(buttontool), TRUE);
 
	buttontool = gtk_radio_tool_button_new(group);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON(buttontool),"format-justify-center-symbolic");
	gtk_widget_set_tooltip_markup (GTK_WIDGET (buttontool), "Justifiez le texte au milieu ");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), buttontool, -1);
	//gtk_radio_button_set_group (GTK_RADIO_BUTTON (buttontool),group);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toJustifyCenter),buffer);
 
 
	buttontool = gtk_radio_tool_button_new(group);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON(buttontool),"format-justify-right-symbolic");
	gtk_widget_set_tooltip_markup (GTK_WIDGET (buttontool), "Justifiez le texte à droite ");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), buttontool, -1);
	//gtk_radio_button_set_group (GTK_RADIO_BUTTON (buttontool),group);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toJustifyRight),buffer);
 
	buttontool = gtk_radio_tool_button_new(group);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON(buttontool),"format-justify-fill-symbolic");
	gtk_widget_set_tooltip_markup (GTK_WIDGET (buttontool), "Justifiez le texte rempli entre marge ");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), buttontool, -1);
	//gtk_radio_button_set_group (GTK_RADIO_BUTTON (buttontool),group);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toJustifyFill),buffer);
 
	//* Avec des séparateurs */
	Separator = gtk_separator_tool_item_new();
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), Separator, -1);
	/* fin separator */
 
	/* enfin on peut quitter !!!!! */
	item = gtk_tool_button_new (NULL, NULL);
	gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item),"application-exit");
	gtk_widget_set_tooltip_text (GTK_WIDGET (item), "Quitter l'éditeur");
	gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toExit),buffer);
 
	return toolbar;
} 
void manage_toolbars(GtkWidget *toolbarone,GtkWidget *toolbartwo)
{
    /*  étant donné que la référence de toolbar_advance est créé à la compilation
     * je ne peux pas faire de référence en dynamique
     * du coup je rajoute les boutons pour passer en double toolbar 
     * après la création de toolbar_advance 
     * dans une autre fonction 
     */
   	/* essai de bouton de base avec un texte car j'ai perdu le truc gtk_button_new*/
	GtkToolItem *item;
	item = gtk_tool_button_new (NULL,"Toolbar en 2 niveaux" );
	/* Définit si tool_item doit être considéré comme important. 
	 * La classe GtkToolButton utilise cette propriété pour déterminer 
	 * s'il doit afficher ou masquer son libellé lorsque le style de la barre d'outils
	 * est GTK_TOOLBAR_BOTH_HORIZ. Le résultat est que seul les boutons d'outils
	 * avec le jeu de propriétés "is_important" ont des étiquettes,
	 * un effet connu sous le nom de "texte de priorité"
	 * le moyen d'afficher un label au lieu d'un icone
	 */
	gtk_tool_item_set_is_important(item, TRUE);
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Passer la barre d'outils en 2 niveaux");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbarone), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toTwoToolBar),toolbartwo);
	/************************************/
 
	item= gtk_tool_button_new (NULL,"Toolbar en 1 niveau" );
	/* Définit si tool_item doit être considéré comme important. 
	 * La classe GtkToolButton utilise cette propriété pour déterminer 
	 * s'il doit afficher ou masquer son libellé lorsque le style de la barre d'outils
	 * est GTK_TOOLBAR_BOTH_HORIZ. Le résultat est que seuls les boutons d'outils
	 * avec le jeu de propriétés "is_important" ont des étiquettes,
	 * un effet connu sous le nom de "texte de priorité"
	 * le moyen d'afficher un label au lieu d'un icone
	 */
	gtk_tool_item_set_is_important(item, TRUE);
	gtk_tool_item_set_tooltip_markup (GTK_TOOL_ITEM (item), "Passer la barre d'outils en 1 niveau");  
	gtk_toolbar_insert (GTK_TOOLBAR (toolbartwo), item, -1);
	g_signal_connect(item, "clicked",    G_CALLBACK	(cb_ButtonClicked_toOneToolBar),toolbartwo);
}
 
gboolean incertain_language (const gchar *filename)
{
	g_return_val_if_fail (filename != NULL, FALSE);
 
	//gchar *content_type;
	gboolean result_uncertain = TRUE; // si vrai c'est que incertain !!!!
 
	gchar *content_type = g_content_type_guess (filename, NULL, 0, &result_uncertain);
	if (result_uncertain)
	{
		if (CB_DEBUG == TRUE)
		{
			g_print("pas réussi à détecter le langage de programmation du fichier [%s]\n", filename);
		}
		g_free (content_type);
		return result_uncertain;
	}
	return result_uncertain;
}
static void handle_error (gchar *text,GError *error,const gchar *filename)
{
  if (error != NULL)
  {
    g_print("%s : %s : %s\n", text, (error)->message, filename);
    g_clear_error (&error);
  }
}
gboolean completion (GtkWidget *sourceview,GtkSourceBuffer *buffer)
{
	g_return_val_if_fail (sourceview != NULL, FALSE);
 
	/* création du système provider fournisseur de mot complet */
	gchar *name = "main";
	GtkSourceCompletionWords *word_provider =gtk_source_completion_words_new(name,NULL);
 
	/* rattachement du provider au buffer */
	gtk_source_completion_words_register(GTK_SOURCE_COMPLETION_WORDS(word_provider),GTK_TEXT_BUFFER(buffer));
 
	/* référence interne au gtksourceview pour rattacher le système visuel au viewer */
	GtkSourceCompletion *completion = gtk_source_view_get_completion(GTK_SOURCE_VIEW(sourceview));
 
	/* ajout du provider dans un contener registre de 1 ou plusieurs providers */
	GError **error = NULL;
	if(gtk_source_completion_add_provider(GTK_SOURCE_COMPLETION(completion), GTK_SOURCE_COMPLETION_PROVIDER(word_provider),error)!= TRUE)
	{
		handle_error("une erreur est apparue au stockage du provider dans le regsitre des providers\n",*error,NULL);
		return FALSE;
	}
	return TRUE;
}
static gboolean set_language (GtkSourceBuffer *sBuf, const gchar *language_name)
/* crée un gestionnaire de langage, affecte un langage et associe le gestionnaire au buffer*/
{
	/* contrôle paranoiaque des paramètres */ 
	g_return_val_if_fail (sBuf != NULL, FALSE);
	//g_return_val_if_fail (language_name != NULL, FALSE);
	g_return_val_if_fail (GTK_SOURCE_BUFFER (sBuf), FALSE);
 
	/* création du gestionnaire de langage */
	GtkSourceLanguageManager *langm   = gtk_source_language_manager_new ();
 
	/* définition d'un langage avec le paramètre language_name*/
	GtkSourceLanguage *lang = gtk_source_language_manager_get_language (langm,language_name);
	if (CB_DEBUG == TRUE)
    {
		g_print("Language: [%s]\n", gtk_source_language_get_name(lang));
    }
 
	if (lang == NULL)
	{
		g_print ("No language found for mime type `%s'\n", "text/x-csrc");
		return FALSE;
	}
	return TRUE;
}
 
static gboolean open_file (GtkSourceBuffer *sBuf, const gchar *filename)
{
 
  GError *err = NULL;
  gboolean reading;
  GtkTextIter iter;
  GIOChannel *io;
  gchar *buffer;
 
  g_return_val_if_fail (sBuf != NULL, FALSE);
  g_return_val_if_fail (filename != NULL, FALSE);
  g_return_val_if_fail (GTK_SOURCE_BUFFER (sBuf), FALSE);
 
 
  /* Now load the file from Disk */
  io = g_io_channel_new_file (filename, "r", &err);
  if (!io)
  {
	  //g_print("error: %s %s\n", (err)->message, filename);
	  handle_error("erreur d'ouverture fichier",err,filename);
	  return FALSE;
  }
 
  if (g_io_channel_set_encoding (io, "utf-8", &err) != G_IO_STATUS_NORMAL)
  {
	  handle_error("err: Failed to set encoding",err,filename);
	  return FALSE;
  }
  // début du gel des commandes undo/redo au chargement du fichier 
  gtk_source_buffer_begin_not_undoable_action (sBuf);
 
  //gtk_text_buffer_set_text (GTK_TEXT_BUFFER (sBuf), "", 0);
  buffer = g_malloc (4096);
  reading = TRUE;
  while (reading)
  {
    gsize bytes_read;
    GIOStatus status;
 
    status = g_io_channel_read_chars (io, buffer, 4096, &bytes_read, &err);
    switch (status)
    {
      case G_IO_STATUS_EOF: reading = FALSE;
 
      case G_IO_STATUS_NORMAL:
        if (bytes_read == 0) continue;		
        gtk_text_buffer_get_end_iter ( GTK_TEXT_BUFFER (sBuf), &iter);
        gtk_text_buffer_insert (GTK_TEXT_BUFFER(sBuf),&iter,buffer,bytes_read);
        break;
 
      case G_IO_STATUS_AGAIN: continue;
 
      case G_IO_STATUS_ERROR:
 
      default:
        g_print("err (%s): %s", filename, (err)->message);
        /* because of error in input we clear already loaded text */
        gtk_text_buffer_set_text (GTK_TEXT_BUFFER (sBuf), "", 0);
 
        reading = FALSE;
        break;
      }
  }
  g_free (buffer);
 
  gtk_source_buffer_end_not_undoable_action (sBuf);
  g_io_channel_unref (io);
 
  if (err)
  {
   g_error_free (err);
   return FALSE;
  }
 
  gtk_text_buffer_set_modified (GTK_TEXT_BUFFER (sBuf), FALSE);
 
  /* move cursor to the beginning */
  gtk_text_buffer_get_start_iter (GTK_TEXT_BUFFER (sBuf), &iter);
  gtk_text_buffer_place_cursor (GTK_TEXT_BUFFER (sBuf), &iter);
 
  g_object_set_data_full (G_OBJECT (sBuf),"filename", g_strdup (filename),
						(GDestroyNotify) g_free);
 
  return TRUE;
}
 
gchar * find_file(gchar *file_name)
{
	/* il faudrait blinder la recheche de filchier */
	g_return_val_if_fail (file_name != NULL, NULL);
 
	if (g_file_test (file_name, G_FILE_TEST_EXISTS) == TRUE)
		return file_name;
	else
	{
		g_print(" erreur sur le fichier de logo %s\n", file_name);
		return NULL;
	}
}
void  setup_default_icon(gchar *logo)
{
	g_print("coucou\n");
	GError *error = NULL;
	/* ajout d'un logo */
	gchar *filename = find_file(logo);
	if (filename != NULL)
	{
		g_print("coucou\n");
		const GdkPixbuf * PixBuf = gdk_pixbuf_new_from_file (filename,&error);
		if (error != NULL)
			handle_error("une erreur est apparue au chargement du PixBuf",error,NULL);
		else
		{
			GdkPixbuf * transparent = gdk_pixbuf_add_alpha (GDK_PIXBUF(PixBuf),TRUE, 0xff, 0xff, 0xff);
			GList *list = NULL;
			list = g_list_append(list, transparent);
			gtk_window_set_default_icon_list (list);
			list = NULL;
		}
	}
}
 
static void do_startup(GtkApplication *app, gpointer *user_data)
{
	/* action préparatoire */
	g_print("Action préparatoire au lancement.................\n\n");
	/* ajout d'un logo */
	setup_default_icon("gtk-logo-rgb.gif");
	(void)app;
	(void)user_data;
}
static void do_shutdown (GtkApplication *app, gpointer *user_data)
{
	/* action préparatoire */
	g_print("Action de sécurisation à la fermeture ..............\n\n");
	(void)app;
	(void)user_data;
}
static void do_activate (GtkApplication *app, gchar *filename)
/* cb_ApplicationActivate est un call back qui prépare les tâches à réaliser
 * quand l'application sera lancée
 * les autres fonctions préparatives  startup et open, ni shutdown pour gérer 
 * la fin ne sont pas utilisées ici
 */
{
	int show_line_numbers = TRUE;
	int autoindent = TRUE;
	int showmarginright = TRUE;
	int highlight_matching_brackets = TRUE;
	int highlight_current_line = TRUE;
 
	if (CB_DEBUG == TRUE)
    {
		g_print("Fonction activate a démarrée\n");
    }
  	/* Create a window with a title, and a default size */
	GtkWidget *window = gtk_application_window_new (app);
	gtk_window_set_title (GTK_WINDOW (window), "sourceview Example with gtksource view");
	/*  -1 permet de fixer le minimum de la fentre pour que le toolbar soit visible */
	gtk_window_set_default_size (GTK_WINDOW(window), -1,660);//660, 500
 
	/* The text buffer represents the text being edited */
	GtkSourceBuffer *buffer = gtk_source_buffer_new (NULL);
	/* noter la pirouette les fonctions gtk_text_buffer_create_tag de create_tags
	 * sont compatibles avec seulement un gtkTextBuffer
	 * mais on sait que la relation d'héritage est 
	 *   GObject
     *         +----GtkTextBuffer
     *                +----GtkSourceBuffer
     * donc les fonctions de d'un gtkTextBuffer sont théoriquement accéssibles dans un 
     * GtkSourceBuffer le transtypage a être encore à notre secours
     */
 
	create_tags (GTK_TEXT_BUFFER( buffer));
 
	/* Source view is a widget in which can display the text buffer. 
	* The line wrapping is set to break lines in between words.
	*/
	GtkWidget *sourceview = gtk_source_view_new_with_buffer (buffer);
	gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (sourceview), GTK_WRAP_WORD); 
 
	/* La numérotation des lignes s'effectue de la manière suivante */
	gtk_source_view_set_show_line_numbers(GTK_SOURCE_VIEW (sourceview), show_line_numbers);
	/* L'indentation automatique des lignes s'effectue de la manière suivante */
	gtk_source_view_set_auto_indent(GTK_SOURCE_VIEW (sourceview), autoindent);
	gtk_source_view_set_indent_width(GTK_SOURCE_VIEW (sourceview), 4);
	/* L'affichage d'une marge à droite sur les lignes s'effectue de la manière suivante */
	gtk_source_view_set_show_right_margin(GTK_SOURCE_VIEW (sourceview), showmarginright);
	gtk_source_view_set_right_margin_position (GTK_SOURCE_VIEW(sourceview), 120);
	/* Contrôle l'affichage d'une accolade ou bracket symétrique lorsque que le curseur est à coté  
	 * d'autre occurrence accolade ou bracket. Cela permet de vérifier la parité des {} ou des []
	 */
	gtk_source_buffer_set_highlight_matching_brackets(GTK_SOURCE_BUFFER(buffer), highlight_matching_brackets);
	/* Le surlignage de la ligne courante s'effectue de la manière suivante */
	gtk_source_view_set_highlight_current_line(GTK_SOURCE_VIEW(sourceview), highlight_current_line);
	int OPTION1 = FALSE;
	int OPTION2 = TRUE;
 
	if (OPTION1 == TRUE)
	{
		/* Set default Font name,size */
		PangoFontDescription *font_desc = pango_font_description_from_string ("mono 8");
		gtk_widget_override_font (GTK_WIDGET(sourceview), font_desc);
		pango_font_description_free (font_desc);
	}
	if (OPTION2 == TRUE)
	{
		/* Change default font and color throughout the widget */
		GtkCssProvider *provider = gtk_css_provider_new ();
		GdkDisplay *display = gdk_display_get_default ();
		GdkScreen *screen = gdk_display_get_default_screen (display);
 
		gtk_style_context_add_provider_for_screen (screen,
                                 GTK_STYLE_PROVIDER (provider),
                                 GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
 
		gtk_widget_set_name (GTK_WIDGET(sourceview),"gtksourceview");
		gtk_css_provider_load_from_data (provider,
                                 ".gtksourceview {"
                                 " font: 15 serif;"
                                 "  color: darkgreen;"
                                 "background-color: shade(lightgreen, 1.0);"
                                 "}",
                                 -1,
                                 NULL);
        /***************** fin new ************/
        g_object_unref (provider);
	}
 
	/* Create the scrolled window. Usually NULL is passed for both parameters so 
	* that it creates the horizontal/vertical adjustments automatically. Setting 
	* the scrollbar policy to automatic allows the scrollbars to only show up 
	* when needed. 
	*/
	GtkWidget *scrolledwindow = gtk_scrolled_window_new (NULL, NULL);
	gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolledwindow), 
                                  GTK_POLICY_AUTOMATIC, 
                                  GTK_POLICY_AUTOMATIC); 
	/* The function directly below is used to add children to the scrolled window 
	* with scrolling capabilities (e.g text_view), otherwise, 
	* gtk_scrolled_window_add_with_viewport() would have been used
	*/
	gtk_container_add (GTK_CONTAINER (scrolledwindow), sourceview);
	gtk_container_set_border_width (GTK_CONTAINER (scrolledwindow), 5);
 
	/* une box verticale pour y ranger les toolbars et le scrolledwindow
	 * qui contient le sourceview
	 */
	GtkWidget *box;
    box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 
    /* création des tool bar */
    GtkWidget *toolbar;
    GtkWidget *toolbar_advance;
 
    /* la ligne ci-dessous ne peut être opérationnelle */
    //toolbar = create_toolbar(toolbar_advance);
    toolbar = create_toolbar(sourceview,buffer);
    toolbar_advance = create_toolbar_advance(buffer);
	/* controle des boutons d'activation de la toolbar_advance */
    manage_toolbars(toolbar,toolbar_advance);   
    /* Creation d un GtkHSeparator */
    GtkWidget *Separator;
    gtk_box_pack_start (GTK_BOX (box), toolbar, FALSE, FALSE, 10);
	Separator = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
	gtk_box_pack_start (GTK_BOX (box), Separator, FALSE, FALSE, 0);
	Separator = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
	gtk_box_pack_start (GTK_BOX (box), Separator, FALSE, FALSE, 0);
 
	gtk_box_pack_start (GTK_BOX (box), toolbar_advance, FALSE, FALSE, 10);
 
	Separator = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
	gtk_box_pack_start (GTK_BOX (box), Separator, FALSE, FALSE, 0);
	Separator = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
	gtk_box_pack_start (GTK_BOX (box), Separator, FALSE, FALSE, 0);
 
    gtk_box_pack_start (GTK_BOX (box),scrolledwindow,TRUE, TRUE, 0);
 
	gtk_container_add (GTK_CONTAINER (window), box);
 
	/* Finally load an example file to see how it works */
	//if (open_file (sBuf, "new_demo.c");
 
	/* en attendant la combine */
	//gchar *filename = "gtksourceview_04.c";
	/* devine le type de langage de programmation */
	gchar *langage_type = "";
 
 
	if ( incertain_language(filename) ==FALSE)
	{
		/* le langage n'est pas incertain !!!!*/
 
		/* création d'un gestionnaire de langage temporaire */
		GtkSourceLanguageManager *manager   = gtk_source_language_manager_new ();
		/* le langage peut être reconnu */
		GtkSourceLanguage *lang = gtk_source_language_manager_guess_language (manager, filename, langage_type);
		gtk_source_buffer_set_language (buffer, lang);
 
		if (CB_DEBUG == TRUE)
		{
			/* reste éventuellement à trouver comment identifier le type de langage 
			 * pour l'afficher */
			g_print("le langage de programmation du fichier [%s] a été détecté correctement :[%s]\n", filename,langage_type);
		}
	}
	else
	{
		/* mise en place d'un langage manager
		* 3 valeurs possibles C, C++ ou Python
		* ici on manipule du C mais rien n'empeche de prévoir un choix utilisateur
		*/
		gchar *langage = "c";
		if (set_language(buffer,langage) != TRUE)
		{
			g_print(" catastrophe ca marche pas");
		}
	}
 
	if (open_file (buffer, filename) == FALSE)
	{
		g_print ("No file found `%s'\n", filename);
	}
 
	/* sytème de completion */
 
	completion (sourceview, buffer);
	//set_completion(sourceview, buffer);
 
	gtk_widget_show_all (window);
	gtk_widget_show_all (toolbar);
}
/* attention pour passer à une maquette standard il faudrait
 * rajouter la fonction start et celle de la fin do_fin !!!!!!
 */
int main (int argc, char **argv)
{
	if (CB_DEBUG == TRUE)
    {
		g_print("Maquette fonction do_mon_oeuvre\n");
		g_print("version Gtksource : %d.%d.%d\n", 	gtk_source_get_major_version (), 
													gtk_source_get_minor_version (), 
													gtk_source_get_micro_version ());
		g_printf("version gtk %d.%d.%d\n", gtk_major_version, gtk_minor_version, gtk_micro_version);
    }
 
    gchar *filename = "gtksourceview_08.c";
 
    GtkApplication *app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
 
    /* on fait quoi avec celles là  */
    g_signal_connect (app, "startup", G_CALLBACK (do_startup), NULL);
    g_signal_connect (app, "activate", G_CALLBACK (do_activate), filename);
    //g_signal_connect (app, "activate", G_CALLBACK (do_activate), NULL);
    g_signal_connect (app, "shutdown", G_CALLBACK (do_shutdown), NULL);
 
 
    int status = g_application_run (G_APPLICATION (app), argc, argv);
    g_object_unref (app);
	return status;
}
voici les erreurs de compilation

In file included from gtksourceview_08.c:4:0:
/usr/include/gtksourceview-3.0/gtksourceview/gtksourcelanguage.h:41:8: error: redefinition of ‘struct _GtkSourceLanguage’
struct _GtkSourceLanguage
^~~~~~~~~~~~~~~~~~
In file included from /usr/local/include/gtksourceview-3.0/gtksourceview/gtksourcecompletioncontext.h:34:0,
from /usr/local/include/gtksourceview-3.0/gtksourceview/gtksourcecompletionprovider.h:35,
from /usr/local/include/gtksourceview-3.0/gtksourceview/completion-providers/words/gtksourcecompletionwords.h:33,
from /usr/local/include/gtksourceview-3.0/gtksourceview/gtksource.h:25,
from gtksourceview_08.c:2:
/usr/local/include/gtksourceview-3.0/gtksourceview/gtksourcetypes.h:53:16: note: originally defined here
typedef struct _GtkSourceLanguage GtkSourceLanguage;
^~~~~~~~~~~~~~~~~~
In file included from gtksourceview_08.c:4:0:
/usr/include/gtksourceview-3.0/gtksourceview/gtksourcelanguage.h:48:8: error: redefinition of ‘struct _GtkSourceLanguageClass’
struct _GtkSourceLanguageClass
^~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/local/include/gtksourceview-3.0/gtksourceview/gtksource.h:42:0,
from gtksourceview_08.c:2:
/usr/local/include/gtksourceview-3.0/gtksourceview/gtksourcelanguage.h:46:16: note: originally defined here
typedef struct _GtkSourceLanguageClass GtkSourceLanguageClass;
^~~~~~~~~~~~~~~~~~~~~~~
In file included from gtksourceview_08.c:5:0:
/usr/include/gtksourceview-3.0/gtksourceview/gtksourcelanguagemanager.h:40:8: error: redefinition of ‘struct _GtkSourceLanguageManager’
struct _GtkSourceLanguageManager
^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/local/include/gtksourceview-3.0/gtksourceview/gtksourcecompletioncontext.h:34:0,
from /usr/local/include/gtksourceview-3.0/gtksourceview/gtksourcecompletionprovider.h:35,
from /usr/local/include/gtksourceview-3.0/gtksourceview/completion-providers/words/gtksourcecompletionwords.h:33,
from /usr/local/include/gtksourceview-3.0/gtksourceview/gtksource.h:25,
from gtksourceview_08.c:2:
/usr/local/include/gtksourceview-3.0/gtksourceview/gtksourcetypes.h:54:16: note: originally defined here
typedef struct _GtkSourceLanguageManager GtkSourceLanguageManager;
^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from gtksourceview_08.c:5:0:
/usr/include/gtksourceview-3.0/gtksourceview/gtksourcelanguagemanager.h:47:8: error: redefinition of ‘struct _GtkSourceLanguageManagerClass’
struct _GtkSourceLanguageManagerClass
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/local/include/gtksourceview-3.0/gtksourceview/gtksource.h:43:0,
from gtksourceview_08.c:2:
/usr/local/include/gtksourceview-3.0/gtksourceview/gtksourcelanguagemanager.h:46:16: note: originally defined here
typedef struct _GtkSourceLanguageManagerClass GtkSourceLanguageManagerClass;


je me suis dit que les erreurs étaient aux lignes includes que j’ai masqué

#include <gtk/gtk.h>
#include <gtksourceview/gtksource.h>
#include <gtksourceview/gtksourcebuffer.h>
///#include "/usr/include/gtksourceview-3.0/gtksourceview/gtksourcelanguage.h"
///#include "/usr/include/gtksourceview-3.0/gtksourceview/gtksourcelanguagemanager.h"

#include <gtksourceview/completion-providers/words/gtksourcecompletionwords.h>

effectivement je n’ai plus ces erreurs de compilation mais quand je lance mon programme

l’analyse de la doc 3.20.2 m’indique que désormais GtkSourceLanguageManager est dans gtksource.h donc acte mais si je veux développer en parallèle sur les 2 versions comment gérer l’inclusion conditionnelle des 2 lignes mises en commentaire pour n'avoir qu'un seul code. Je connais les tests IFDEF truc etc mais à la compilation on a pas encore le numéro de version disponible

d’autre part j’ai des erreurs de segment qui apparaissent sur la fonction
void text_action( gpointer buffer,gchar * tag)
{
/* modifie une zone de texte */
GtkTextIter start;
GtkTextIter end;
if (gtk_text_buffer_get_selection_bounds (GTK_TEXT_BUFFER(buffer), &start, &end))
{
gtk_text_buffer_apply_tag_by_name(GTK_TEXT_BUFFER(buffer),tag, &start, &end);
}
}

idem pour les fonctions suivantes
void cb_ButtonClicked_toRedo( GtkWidget *widget,GdkEvent *event, gpointer buffer )
{
if (gtk_source_buffer_can_redo(GTK_SOURCE_BUFFER(buffer)) )
{
gtk_source_buffer_redo(GTK_SOURCE_BUFFER(buffer)) ;
}
return ;
(void)widget;
(void)event;
}

void cb_ButtonClicked_toUndo( GtkWidget *widget,GdkEvent *event, gpointer buffer )
{
if (gtk_source_buffer_can_undo(GTK_SOURCE_BUFFER(buffer)) )
{
gtk_source_buffer_undo(GTK_SOURCE_BUFFER(buffer)) ;
}
return ;
(void)widget;
(void)event;
}

avez-vous une idée svp pour les 2 questions?
je me pose la question de la cohérence de version entre GTK et GTKsourceview?