static gboolean
bytes_view_scroll(GtkWidget *widget, GdkEventScroll *event)
{
BytesView *bv = BYTES_VIEW(widget);
gdouble new_value;
if (event->direction == GDK_SCROLL_UP) { /* mouse wheel pageUp */
bytes_view_ensure_vadj(bv);
new_value = gtk_adjustment_get_value(bv->vadj) - (gtk_adjustment_get_page_increment(bv->vadj) / 10);
if (new_value < gtk_adjustment_get_lower(bv->vadj))
new_value = gtk_adjustment_get_lower(bv->vadj);
gtk_adjustment_set_value(bv->vadj, new_value);
} else if (event->direction == GDK_SCROLL_DOWN) { /* mouse wheel pageDn */
bytes_view_ensure_vadj(bv);
new_value = gtk_adjustment_get_value(bv->vadj) + (gtk_adjustment_get_page_increment(bv->vadj) / 10);
if (new_value > (gtk_adjustment_get_upper(bv->vadj) - gtk_adjustment_get_page_size(bv->vadj)))
new_value = gtk_adjustment_get_upper(bv->vadj) - gtk_adjustment_get_page_size(bv->vadj);
gtk_adjustment_set_value(bv->vadj, new_value);
}
return FALSE;
}
static void
bytes_view_destroy_widget(GtkWidget *widget)
{
bytes_view_destroy(BYTES_VIEW(widget));
GTK_WIDGET_CLASS(parent_class)->destroy(widget);
}
static void
bytes_view_destroy_object(GtkObject *object)
{
bytes_view_destroy(BYTES_VIEW(object));
if (GTK_OBJECT_CLASS(parent_class)->destroy)
(*GTK_OBJECT_CLASS(parent_class)->destroy)(object);
}
static void
bytes_view_realize(GtkWidget *widget)
{
BytesView *bv;
GdkWindowAttr attributes;
GtkAllocation allocation;
GdkWindow *win;
#if GTK_CHECK_VERSION(3, 0, 0)
GtkStyleContext *context;
#endif
_gtk_widget_set_realized_true(widget);
bv = BYTES_VIEW(widget);
gtk_widget_get_allocation(widget, &allocation);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = allocation.x;
attributes.y = allocation.y;
attributes.width = allocation.width;
attributes.height = allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual(widget);
attributes.event_mask = gtk_widget_get_events(widget) | GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK;
#if !GTK_CHECK_VERSION(3, 0, 0)
attributes.colormap = gtk_widget_get_colormap(widget);
win = gdk_window_new(gtk_widget_get_parent_window(widget), &attributes, GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP);
#else
win = gdk_window_new(gtk_widget_get_parent_window(widget), &attributes, GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL);
#endif
gtk_widget_set_window(widget, win);
#if GTK_CHECK_VERSION(3, 8, 0)
gtk_widget_register_window(widget, win);
#else
gdk_window_set_user_data(win, widget);
#endif
#if !GTK_CHECK_VERSION(3, 0, 0) /* XXX, check */
gdk_window_set_back_pixmap(win, NULL, FALSE);
#endif
#if GTK_CHECK_VERSION(3, 0, 0)
context = gtk_widget_get_style_context(widget);
gtk_style_context_add_class(context, GTK_STYLE_CLASS_VIEW);
/* gtk_style_context_add_class(context, GTK_STYLE_CLASS_ENTRY); */
#elif GTK_CHECK_VERSION(2, 20, 0)
gtk_widget_style_attach(widget);
#else
widget->style = gtk_style_attach(widget->style, win);
#endif
bytes_view_ensure_layout(bv);
}
static void
bytes_view_allocate(GtkWidget *widget, GtkAllocation *allocation)
{
gtk_widget_set_allocation(widget, allocation);
if (gtk_widget_get_realized(widget)) {
BytesView *bv = BYTES_VIEW(widget);
gdk_window_move_resize(gtk_widget_get_window(widget), allocation->x, allocation->y, allocation->width, allocation->height);
bytes_view_adjustment_set(bv);
}
}
static void
bytes_view_unrealize(GtkWidget *widget)
{
BytesView *bv = BYTES_VIEW(widget);
if (bv->context) {
g_object_unref(bv->context);
bv->context = NULL;
}
/* if there are still events in the queue, this'll avoid segfault */
gdk_window_set_user_data(gtk_widget_get_window(widget), NULL);
if (parent_class->unrealize)
(*GTK_WIDGET_CLASS(parent_class)->unrealize)(widget);
}
