callbacks.c

Gtk+,glade3 部件应用示例源代码。

	if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
	{
		gchar *filename;
		filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));	
		gtk_entry_set_text(mwin->p1_entry_FilePathName, filename);
		gtk_image_set_from_file(mwin->p1_image, filename);

		filename_for_existing_document = g_strdup(filename);
		user_edited_a_new_document = FALSE;
		g_free (filename);
	}
	
	gtk_widget_destroy (dialog);
}



void
on_Save_clicked(GtkWidget* w, gpointer user_data)
{
	printf("func cb Save\n");
	GtkWidget *dialog;
	
	dialog = gtk_file_chooser_dialog_new ("保存文件",
										  mwin->window,
										  GTK_FILE_CHOOSER_ACTION_SAVE,
										  GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
										  GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
										  NULL);
	gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER (dialog), TRUE);
	
	// 处理保存路径及文件名
	if (user_edited_a_new_document)
	{
		gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER (dialog),
											default_folder_for_saving);
		gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), "未命名");
	}
	else
		gtk_file_chooser_set_filename(GTK_FILE_CHOOSER (dialog),
									  filename_for_existing_document);
	
	
	if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
	{
		char *filename;
		
		filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
		//~ save_to_file (filename);
		g_free (filename);
	}
	
	gtk_widget_destroy (dialog);
	
}


// Action Callback
void
on_btn_OK_clicked(GtkWidget* w, gpointer user_data)
{
	printf("func cb ok\n");
	
	//FILE* file;
	//const gchar* filename;
	GtkTextBuffer* tbuf;
	GtkTextIter start, end;

	tbuf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (mwin->p2_textview));
	
	//gtk_text_buffer_set_text (tbuf, "Hello, this is some text", -1);

	gtk_text_buffer_get_iter_at_offset(tbuf, &start, 7);
	gtk_text_buffer_get_iter_at_offset(tbuf, &end, 12);
	gchar* text_fv= gtk_text_buffer_get_text(tbuf, &start, &end, TRUE);

	gtk_entry_set_text(mwin->p2_entry_text, text_fv);
	//filename = gtk_entry_get_text(mwin->p1_entry_FilePathName);
	//file = fopen(filename, "r+");
	//gtk_text_view_set_buffer(mwin->p2_textview, file);
	
	//fclose(file);
	
}


void
on_btn_Apply_clicked(GtkWidget* w, gpointer user_data)
{
	printf("func cb apply\n");
	
	gdouble pb = 0.0;
	int i;
	for (i = 0; i < 1000-1; i++)
	{
		pb = pb + 0.001;
		gtk_progress_bar_set_text(mwin->progressbar, "progressing");
		gtk_progress_bar_set_fraction(mwin->progressbar, pb);
		//sleep(1);
	}
}


void
on_btn_Undo_clicked(GtkWidget* w, gpointer user_data)
{
	printf("func cb undo\n");
	gtk_progress_bar_set_fraction(mwin->progressbar, 0.0);

}


// FileChooserButton Callback
void
on_page1_btn_filechooser_file_set(GtkWidget* w, gpointer user_data)
{
	const gchar* filename;
	filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER (w));
	gtk_image_set_from_file(mwin->p1_image, filename);
	
}


// page 3
void
on_page3_radiobutton1_toggled(GtkWidget *w, gpointer data)
{
	gboolean t = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w));
	if (t)
	{
	    
		GtkDialog *dlg =
			(GtkDialog*)gtk_dialog_new_with_buttons("dialog",
													GTK_WINDOW(mwin->window),
													GTK_DIALOG_MODAL,
													GTK_STOCK_OK,
													GTK_RESPONSE_ACCEPT,
													GTK_STOCK_CANCEL,
													GTK_RESPONSE_REJECT,
													NULL);
		gtk_dialog_run(GTK_DIALOG(dlg));
		gtk_widget_destroy((GtkWidget*)dlg);
	}
}


void
on_page3_radiobutton2_toggled(GtkWidget *w, gpointer data)
{
	gboolean t = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w));
	if (t)
	{
	 	GtkWidget *dialog;
		dialog = gtk_message_dialog_new (mwin->window,
										 GTK_DIALOG_DESTROY_WITH_PARENT,
										 GTK_MESSAGE_ERROR,
										 GTK_BUTTONS_CLOSE,
										 "模式消息框: '%s': %s",
										 "strings", "Model Message Dialog.");
		gtk_dialog_run(GTK_DIALOG(dialog));
		gtk_widget_destroy (dialog);
	}
}


void
on_page3_radiobutton3_toggled(GtkWidget *w, gpointer data)
{
	gboolean t = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w));
	if (t)
	{
	 	GtkWidget *dialog;
		dialog = gtk_message_dialog_new (mwin->window,
										 GTK_DIALOG_DESTROY_WITH_PARENT,
										 GTK_MESSAGE_INFO,
										 GTK_BUTTONS_CLOSE,
										 "无模式消息框: '%s': %s",
										 "strings", "Modeless Message Dialog.");
		/* Destroy the dialog when the user responds to it (e.g. clicks a button) */
		g_signal_connect_swapped (dialog, "response",
								  G_CALLBACK (gtk_widget_destroy),
								  dialog);
		gtk_widget_show(dialog);
	}
}



// popop menu
// Signal handler which displays a popup menu.
static gint
popup_handler_window(GtkWidget *widget, GdkEvent *event)
{
	printf("func event handler window popup \n");
	GtkMenu *menu;
	GdkEventButton *event_button;

	g_return_val_if_fail (widget != NULL, FALSE);
	g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
	g_return_val_if_fail (event != NULL, FALSE);

	/* The "widget" is the menu that was supplied when 
	 * g_signal_connect_swapped() was called.
	 */
	menu = GTK_MENU (widget);

	if (event->type == GDK_BUTTON_PRESS)
    {
		event_button = (GdkEventButton *) event;
		if (event_button->button == 3)
		{
			gtk_menu_popup (menu, NULL, NULL, NULL, NULL, 
							event_button->button, event_button->time);
			return TRUE;
		}
    }

	return FALSE;
}


/* Prototype for selection handler callback */
void
on_treeview_selection_changed(GtkTreeSelection *selection, gpointer data)
{
	printf("func tree selection changed\n");
	GtkTreeIter iter;
	GtkTreeModel *model;
	gchar *title, *author;
	gboolean checked = FALSE;
	
	if (gtk_tree_selection_get_selected (selection, &model, &iter))
	{
		gtk_tree_model_get (model, &iter, 
							TITLE_COLUMN, &title, 
							AUTHOR_COLUMN, &author, 
							CHECKED_COLUMN, &checked, -1);
		
		g_print ("You selected a book \n<<%s>> by <%s>, Checked Out:%s\n",
				 title, author, checked?"TRUE":"FALSE");
		
		g_free (author);
	}
	
}


void
on_treeview_row_activated(GtkTreeView       *tree_view,
						  GtkTreePath       *path,
						  GtkTreeViewColumn *column,
						  gpointer           user_data) 
{
	printf("func tree row activate\n");
	
	
}


void
on_page3_combobox1_changed(GtkComboBox *widget, gpointer user_data)
{
	GtkTreeIter iter;
	gchar *activetext = gtk_combo_box_get_active_text(widget);
	
	gtk_combo_box_get_active_iter(widget, &iter);
	
	if (*activetext == 'a')
	{
		gtk_combo_box_insert_text(widget, 0, "new item");
	}
	
	if (*activetext == 'r')
	{
		gtk_combo_box_remove_text(widget, 0);
	}
	
		

}



void
on_page3_spinbutton1_value_changed (GtkSpinButton *spinbutton,
								   GtkScrollType  arg1,
								   gpointer       user_data)
{
	gdouble value = gtk_spin_button_get_value(spinbutton);
	gchar *str;
	str = g_new0(char, 80);
	sprintf(str, "数值已改变：%lf", value);
	MessageBox(str);
	
	g_free(str);
}


void
on_page3_vscale1_value_changed(GtkRange *range, gpointer  user_data)
{
	gdouble value = gtk_range_get_value(range);
	gtk_range_set_value(GTK_RANGE(mwin->p3_hscale), value);
	
	gchar *str;
	str = g_new0(char, 20);
	sprintf(str, "%.2f%%", value*100/90.0);

	gtk_progress_bar_set_text(mwin->progressbar, str);

	gtk_progress_bar_set_fraction(mwin->progressbar, value/90.0);

}