* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
+
+/*
+ * Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
#include <math.h>
#include "gtkcontainer.h"
#include "gtkscale.h"
#define SCALE_CLASS(w) GTK_SCALE_CLASS (GTK_OBJECT (w)->klass)
+enum {
+ ARG_0,
+ ARG_DIGITS,
+ ARG_DRAW_VALUE,
+ ARG_VALUE_POS
+};
+
static void gtk_scale_class_init (GtkScaleClass *klass);
static void gtk_scale_init (GtkScale *scale);
+static void gtk_scale_set_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id);
+static void gtk_scale_get_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id);
+static void gtk_scale_map (GtkWidget *widget);
+static void gtk_scale_unmap (GtkWidget *widget);
+
static void gtk_scale_draw_background (GtkRange *range);
static GtkRangeClass *parent_class = NULL;
-guint
+GtkType
gtk_scale_get_type (void)
{
- static guint scale_type = 0;
+ static GtkType scale_type = 0;
if (!scale_type)
{
- GtkTypeInfo scale_info =
+ static const GtkTypeInfo scale_info =
{
"GtkScale",
sizeof (GtkScale),
sizeof (GtkScaleClass),
(GtkClassInitFunc) gtk_scale_class_init,
(GtkObjectInitFunc) gtk_scale_init,
- /* reversed_1 */ NULL,
- /* reversed_2 */ NULL,
+ /* reserved_1 */ NULL,
+ /* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
- scale_type = gtk_type_unique (gtk_range_get_type (), &scale_info);
+ scale_type = gtk_type_unique (GTK_TYPE_RANGE, &scale_info);
}
return scale_type;
gtk_scale_class_init (GtkScaleClass *class)
{
GtkObjectClass *object_class;
+ GtkWidgetClass *widget_class;
GtkRangeClass *range_class;
object_class = (GtkObjectClass*) class;
range_class = (GtkRangeClass*) class;
-
- parent_class = gtk_type_class (gtk_range_get_type ());
-
+ widget_class = (GtkWidgetClass*) class;
+
+ parent_class = gtk_type_class (GTK_TYPE_RANGE);
+
+ gtk_object_add_arg_type ("GtkScale::digits",
+ GTK_TYPE_INT,
+ GTK_ARG_READWRITE,
+ ARG_DIGITS);
+ gtk_object_add_arg_type ("GtkScale::draw_value",
+ GTK_TYPE_BOOL,
+ GTK_ARG_READWRITE,
+ ARG_DRAW_VALUE);
+ gtk_object_add_arg_type ("GtkScale::value_pos",
+ GTK_TYPE_POSITION_TYPE,
+ GTK_ARG_READWRITE,
+ ARG_VALUE_POS);
+
+ object_class->set_arg = gtk_scale_set_arg;
+ object_class->get_arg = gtk_scale_get_arg;
+
+ widget_class->map = gtk_scale_map;
+ widget_class->unmap = gtk_scale_unmap;
+
range_class->draw_background = gtk_scale_draw_background;
class->slider_length = 31;
class->draw_value = NULL;
}
+static void
+gtk_scale_set_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id)
+{
+ GtkScale *scale;
+
+ scale = GTK_SCALE (object);
+
+ switch (arg_id)
+ {
+ case ARG_DIGITS:
+ gtk_scale_set_digits (scale, GTK_VALUE_INT (*arg));
+ break;
+ case ARG_DRAW_VALUE:
+ gtk_scale_set_draw_value (scale, GTK_VALUE_BOOL (*arg));
+ break;
+ case ARG_VALUE_POS:
+ gtk_scale_set_value_pos (scale, GTK_VALUE_ENUM (*arg));
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+gtk_scale_get_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id)
+{
+ GtkScale *scale;
+
+ scale = GTK_SCALE (object);
+
+ switch (arg_id)
+ {
+ case ARG_DIGITS:
+ GTK_VALUE_INT (*arg) = GTK_RANGE (scale)->digits;
+ break;
+ case ARG_DRAW_VALUE:
+ GTK_VALUE_BOOL (*arg) = scale->draw_value;
+ break;
+ case ARG_VALUE_POS:
+ GTK_VALUE_ENUM (*arg) = scale->value_pos;
+ break;
+ default:
+ arg->type = GTK_TYPE_INVALID;
+ break;
+ }
+}
+
static void
gtk_scale_init (GtkScale *scale)
{
GTK_WIDGET_SET_FLAGS (scale, GTK_CAN_FOCUS);
+ GTK_WIDGET_SET_FLAGS (scale, GTK_NO_WINDOW);
GTK_RANGE (scale)->digits = 1;
scale->draw_value = TRUE;
scale->value_pos = GTK_POS_TOP;
}
+static void
+gtk_scale_map (GtkWidget *widget)
+{
+ GtkRange *range;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_SCALE (widget));
+
+ GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
+ range = GTK_RANGE (widget);
+
+ gdk_window_show (range->trough);
+}
+
+static void
+gtk_scale_unmap (GtkWidget *widget)
+{
+ GtkRange *range;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_SCALE (widget));
+
+ GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
+ range = GTK_RANGE (widget);
+
+ if (GTK_WIDGET_NO_WINDOW (widget))
+ gtk_widget_queue_clear (widget);
+
+ gdk_window_hide (range->trough);
+}
+
void
gtk_scale_set_digits (GtkScale *scale,
gint digits)
g_return_if_fail (scale != NULL);
g_return_if_fail (GTK_IS_SCALE (scale));
+ digits = CLAMP (digits, -1, 16);
+
if (GTK_RANGE (scale)->digits != digits)
{
GTK_RANGE (scale)->digits = digits;
- if (GTK_WIDGET_VISIBLE (scale) && GTK_WIDGET_MAPPED (scale))
- gtk_widget_queue_resize (GTK_WIDGET (scale));
+ gtk_widget_queue_resize (GTK_WIDGET (scale));
}
}
void
gtk_scale_set_draw_value (GtkScale *scale,
- gint draw_value)
+ gboolean draw_value)
{
g_return_if_fail (scale != NULL);
g_return_if_fail (GTK_IS_SCALE (scale));
+ draw_value = draw_value != FALSE;
+
if (scale->draw_value != draw_value)
{
- scale->draw_value = (draw_value != 0);
+ scale->draw_value = draw_value;
- if (GTK_WIDGET_VISIBLE (scale) && GTK_WIDGET_MAPPED (scale))
- gtk_widget_queue_resize (GTK_WIDGET (scale));
+ gtk_widget_queue_resize (GTK_WIDGET (scale));
}
}
}
gint
-gtk_scale_value_width (GtkScale *scale)
+gtk_scale_get_value_width (GtkScale *scale)
{
GtkRange *range;
gchar buffer[128];
digits = 13;
i = 0;
- if (range->adjustment->lower < 0)
+ if (range->adjustment->upper < 0)
buffer[i++] = '-';
for (j = 0; j < digits; j++)
buffer[i++] = '0';
projects / ~andy / gtk / blobdiff