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#include "gtkzoom.h"
struct _GtkZoomPrivate
{
int dummy;
// GtkWidget *child;
};
static gboolean
gtk_zoom_draw (GtkWidget *widget,
cairo_t *cr);
static void
gtk_zoom_size_allocate (GtkWidget *widget, GtkAllocation *allocation);
static void
gtk_zoom_get_preferred_width (GtkWidget *widget,
gint *minimum,
gint *natural);
static void
gtk_zoom_get_preferred_height (GtkWidget *widget,
gint *minimum,
gint *natural);
G_DEFINE_TYPE (GtkZoom, gtk_zoom, GTK_TYPE_BIN)
static void
gtk_zoom_class_init (GtkZoomClass *class)
{
GtkWidgetClass *widget_class = (GtkWidgetClass*) class;
widget_class->draw = gtk_zoom_draw;
widget_class->size_allocate = gtk_zoom_size_allocate;
widget_class->get_preferred_width = gtk_zoom_get_preferred_width;
widget_class->get_preferred_height = gtk_zoom_get_preferred_height;
g_type_class_add_private (class, sizeof (GtkZoomPrivate));
}
static void
gtk_zoom_init (GtkZoom *zoom)
{
GtkZoomPrivate *priv;
zoom->priv = G_TYPE_INSTANCE_GET_PRIVATE (zoom,
GTK_TYPE_ZOOM,
GtkZoomPrivate);
priv = zoom->priv;
}
GtkWidget*
gtk_zoom_new (void)
{
return g_object_new (GTK_TYPE_ZOOM, NULL);
}
static void
gtk_zoom_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
{
GtkWidget *main_widget;
GTK_WIDGET_CLASS (gtk_zoom_parent_class)->size_allocate (widget, allocation);
main_widget = gtk_bin_get_child (GTK_BIN (widget));
if (!main_widget || !gtk_widget_get_visible (main_widget))
return;
gtk_widget_size_allocate (main_widget, allocation);
}
static void
gtk_zoom_get_preferred_width (GtkWidget *widget,
gint *minimum,
gint *natural)
{
GtkBin *bin = GTK_BIN (widget);
GtkWidget *child;
if (minimum)
*minimum = 0;
if (natural)
*natural = 0;
child = gtk_bin_get_child (bin);
if (child && gtk_widget_get_visible (child))
gtk_widget_get_preferred_width (child, minimum, natural);
}
static void
gtk_zoom_get_preferred_height (GtkWidget *widget,
gint *minimum,
gint *natural)
{
GtkBin *bin = GTK_BIN (widget);
GtkWidget *child;
if (minimum)
*minimum = 0;
if (natural)
*natural = 0;
child = gtk_bin_get_child (bin);
if (child && gtk_widget_get_visible (child))
gtk_widget_get_preferred_height (child, minimum, natural);
}
static gboolean
gtk_zoom_draw (GtkWidget *widget, cairo_t *cr)
{
GtkWidget *child;
child = gtk_bin_get_child (GTK_BIN(widget));
if (child) {
cairo_save(cr);
cairo_scale(cr, 2, 2);
gtk_widget_draw(child, cr);
cairo_restore(cr);
}
//GTK_WIDGET_CLASS (gtk_zoom_parent_class)->draw (widget, cr);
return FALSE;
}
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