erreur à l'écruiture dans un textview
Bine le bonjour,
je tente d'écrire du texte dans un textview:
j'ai créé une fenetre avec des boutons et textview (et autres) depuis glade3,
Code:
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| <?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.18.3 -->
<interface>
<requires lib="gtk+" version="3.12"/>
<object class="GtkTextBuffer" id="textbuffer1"/>
<object class="GtkWindow" id="MainWindow">
<property name="can_focus">False</property>
<child>
<object class="GtkBox" id="box1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="orientation">vertical</property>
<child>
<object class="GtkMenuBar" id="menubar1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkMenuItem" id="menuitem1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">_Fichier</property>
<property name="use_underline">True</property>
<child type="submenu">
<object class="GtkMenu" id="menu1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkImageMenuItem" id="imagemenuitem1">
<property name="label">gtk-new</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_underline">True</property>
<property name="use_stock">True</property>
</object>
</child>
<child>
<object class="GtkImageMenuItem" id="imagemenuitem2">
<property name="label">gtk-open</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_underline">True</property>
<property name="use_stock">True</property>
</object>
</child>
<child>
<object class="GtkImageMenuItem" id="imagemenuitem3">
<property name="label">gtk-save</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_underline">True</property>
<property name="use_stock">True</property>
</object>
</child>
<child>
<object class="GtkImageMenuItem" id="imagemenuitem4">
<property name="label">gtk-save-as</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_underline">True</property>
<property name="use_stock">True</property>
</object>
</child>
<child>
<object class="GtkSeparatorMenuItem" id="separatormenuitem1">
<property name="visible">True</property>
<property name="can_focus">False</property>
</object>
</child>
<child>
<object class="GtkImageMenuItem" id="imagemenuitem5">
<property name="label">gtk-quit</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_underline">True</property>
<property name="use_stock">True</property>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkMenuItem" id="menuitem2">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">É_dition</property>
<property name="use_underline">True</property>
<child type="submenu">
<object class="GtkMenu" id="menu2">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkImageMenuItem" id="imagemenuitem6">
<property name="label">gtk-cut</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_underline">True</property>
<property name="use_stock">True</property>
</object>
</child>
<child>
<object class="GtkImageMenuItem" id="imagemenuitem7">
<property name="label">gtk-copy</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_underline">True</property>
<property name="use_stock">True</property>
</object>
</child>
<child>
<object class="GtkImageMenuItem" id="imagemenuitem8">
<property name="label">gtk-paste</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_underline">True</property>
<property name="use_stock">True</property>
</object>
</child>
<child>
<object class="GtkImageMenuItem" id="imagemenuitem9">
<property name="label">gtk-delete</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_underline">True</property>
<property name="use_stock">True</property>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkMenuItem" id="menuitem3">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">_Affichage</property>
<property name="use_underline">True</property>
</object>
</child>
<child>
<object class="GtkMenuItem" id="menuitem4">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">Aid_e</property>
<property name="use_underline">True</property>
<child type="submenu">
<object class="GtkMenu" id="menu3">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkImageMenuItem" id="imagemenuitem10">
<property name="label">gtk-about</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_underline">True</property>
<property name="use_stock">True</property>
</object>
</child>
</object>
</child>
</object>
</child>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
<child>
<object class="GtkScrolledWindow" id="scrolledwindow1">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="shadow_type">in</property>
<child>
<object class="GtkViewport" id="viewport1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkTextView" id="TextViewEtat">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="buffer">textbuffer1</property>
</object>
</child>
</object>
</child>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">1</property>
</packing>
</child>
<child>
<object class="GtkGrid" id="grid1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkButton" id="ButtonRestart">
<property name="label" translatable="yes">Redémarrer</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
</object>
<packing>
<property name="left_attach">2</property>
<property name="top_attach">1</property>
</packing>
</child>
<child>
<object class="GtkButton" id="ButtonStop">
<property name="label" translatable="yes">Eteindre</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
</object>
<packing>
<property name="left_attach">3</property>
<property name="top_attach">1</property>
</packing>
</child>
<child>
<object class="GtkButton" id="BoutonTest">
<property name="label" translatable="yes">BoutonTest</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="relief">none</property>
<property name="xalign">0.44999998807907104</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">1</property>
</packing>
</child>
<child>
<placeholder/>
</child>
<child>
<placeholder/>
</child>
<child>
<placeholder/>
</child>
<child>
<placeholder/>
</child>
<child>
<placeholder/>
</child>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">2</property>
</packing>
</child>
<child>
<object class="GtkStatusbar" id="StatusBar">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="margin_left">10</property>
<property name="margin_right">10</property>
<property name="margin_start">10</property>
<property name="margin_end">10</property>
<property name="margin_top">6</property>
<property name="margin_bottom">6</property>
<property name="orientation">vertical</property>
<property name="spacing">2</property>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">False</property>
<property name="position">3</property>
</packing>
</child>
</object>
</child>
</object>
<object class="GtkTextBuffer" id="textbuffer2"/>
</interface> |
à l'exécution tout s'affiche comme prévu
voici mon fichier main_gtk.cpp:
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| #include "main_gtk.h"
#include "gtk_sig.h"
#include <gtk/gtk.h>
GtkWidget *BoutonTest = NULL;
GtkWidget *TextViewEtat = NULL;
int main_gtk(int argc, char *argv []) {
GtkWidget *fenetre_principale = NULL;
//GtkWidget *BoutonTest = NULL;
GtkBuilder *builder = NULL;
GError *error = NULL;
gchar *filename = NULL;
/* Initialisation de la librairie Gtk. */
gtk_init(&argc, &argv);
/* Ouverture du fichier Glade de la fenêtre principale */
builder = gtk_builder_new();
/* Création du chemin complet pour accéder au fichier test.glade. */
/* g_build_filename(); construit le chemin complet en fonction du système */
/* d'exploitation. ( / pour Linux et \ pour Windows) */
filename = g_build_filename ("test.glade", NULL);
/* Chargement du fichier test.glade. */
gtk_builder_add_from_file (builder, filename, &error);
g_free (filename);
if (error){
gint code = error->code;
g_printerr("%s\n", error->message);
g_error_free (error);
return code;
}
/* Récupération du pointeur de la fenêtre principale */
fenetre_principale = GTK_WIDGET(gtk_builder_get_object (builder, "MainWindow"));
BoutonTest = GTK_WIDGET(gtk_builder_get_object (builder, "BoutonTest"));
/* Affectation du signal "destroy" à la fonction gtk_main_quit(); pour la */
/* fermeture de la fenêtre. */
g_signal_connect (G_OBJECT (fenetre_principale), "destroy", (GCallback)gtk_main_quit, NULL);
g_signal_connect (G_OBJECT (BoutonTest), "clicked", (GCallback)click_BoutonTest, NULL);
/* Affichage de la fenêtre principale. */
gtk_widget_show_all (fenetre_principale);
gtk_main();
return 0;
} |
et au clic du BoutonTest, je veux rtemplir le textview TextViewEtat:
voici le fichier de la fonction liée au signal clicked
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| #include "gtk_sig.h"
#include <gtk/gtk.h>
extern GtkWidget *TextViewEtat;
void click_BoutonTest(){
//gtk_main_quit();
GtkTextBuffer * buff;
GtkWidget *view;
view = gtk_text_view_new();
buff = gtk_text_view_get_buffer (GTK_TEXT_VIEW (TextViewEtat));
gtk_text_buffer_set_text (buff, "hello", -1);
} |
et quand je clique sur le BoutonEtat, un message d'erreur apparait dans la console, et rien dans le TextViewEtat
Code:
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| Gtk-CRITICAL **:gtk_text_view_get_buffer: assertion 'GTK_IS_TEXT_VIEW (text_view)' failed
Gtk-CRITICAL **:gtk_text_buffer_set_text: assertion 'GTK_IS_TEXT_BUFFER (buffer)' failed |
Je ne comprends pas le problème.
Par contre si je pointe sur un nouveau GtkWidget *view spécialement créé pour tester vers un autre text_view, rien ne s'affiche dans le text view puisqu'il n'est pas affiché, mais je n'ai aucune erreur dans la console ...
DOnc pourquoi ne puis-je pointer vers mon TextViewEtat?
Merci
