Blame gtk/gtkruler.c

Packit Service fb6fa5
/* GTK - The GIMP Toolkit
Packit Service fb6fa5
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
Packit Service fb6fa5
 *
Packit Service fb6fa5
 * This library is free software; you can redistribute it and/or
Packit Service fb6fa5
 * modify it under the terms of the GNU Lesser General Public
Packit Service fb6fa5
 * License as published by the Free Software Foundation; either
Packit Service fb6fa5
 * version 2 of the License, or (at your option) any later version.
Packit Service fb6fa5
 *
Packit Service fb6fa5
 * This library is distributed in the hope that it will be useful,
Packit Service fb6fa5
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Packit Service fb6fa5
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Packit Service fb6fa5
 * Lesser General Public License for more details.
Packit Service fb6fa5
 *
Packit Service fb6fa5
 * You should have received a copy of the GNU Lesser General Public
Packit Service fb6fa5
 * License along with this library; if not, write to the
Packit Service fb6fa5
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Packit Service fb6fa5
 * Boston, MA 02111-1307, USA.
Packit Service fb6fa5
 */
Packit Service fb6fa5
Packit Service fb6fa5
/*
Packit Service fb6fa5
 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
Packit Service fb6fa5
 * file for a list of people on the GTK+ Team.  See the ChangeLog
Packit Service fb6fa5
 * files for a list of changes.  These files are distributed with
Packit Service fb6fa5
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
Packit Service fb6fa5
 */
Packit Service fb6fa5
Packit Service fb6fa5
#include "config.h"
Packit Service fb6fa5
Packit Service fb6fa5
#include <math.h>
Packit Service fb6fa5
#include <string.h>
Packit Service fb6fa5
Packit Service fb6fa5
#undef GDK_DISABLE_DEPRECATED /* We need gdk_drawable_get_size() */
Packit Service fb6fa5
#undef GTK_DISABLE_DEPRECATED
Packit Service fb6fa5
Packit Service fb6fa5
#include "gtkorientable.h"
Packit Service fb6fa5
#include "gtkruler.h"
Packit Service fb6fa5
#include "gtkprivate.h"
Packit Service fb6fa5
#include "gtkintl.h"
Packit Service fb6fa5
#include "gtkalias.h"
Packit Service fb6fa5
Packit Service fb6fa5
Packit Service fb6fa5
#define RULER_WIDTH           14
Packit Service fb6fa5
#define MINIMUM_INCR          5
Packit Service fb6fa5
#define MAXIMUM_SUBDIVIDE     5
Packit Service fb6fa5
#define MAXIMUM_SCALES        10
Packit Service fb6fa5
Packit Service fb6fa5
#define ROUND(x) ((int) ((x) + 0.5))
Packit Service fb6fa5
Packit Service fb6fa5
enum {
Packit Service fb6fa5
  PROP_0,
Packit Service fb6fa5
  PROP_ORIENTATION,
Packit Service fb6fa5
  PROP_LOWER,
Packit Service fb6fa5
  PROP_UPPER,
Packit Service fb6fa5
  PROP_POSITION,
Packit Service fb6fa5
  PROP_MAX_SIZE,
Packit Service fb6fa5
  PROP_METRIC
Packit Service fb6fa5
};
Packit Service fb6fa5
Packit Service fb6fa5
typedef struct _GtkRulerPrivate GtkRulerPrivate;
Packit Service fb6fa5
Packit Service fb6fa5
struct _GtkRulerPrivate
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkOrientation orientation;
Packit Service fb6fa5
};
Packit Service fb6fa5
Packit Service fb6fa5
#define GTK_RULER_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_RULER, GtkRulerPrivate))
Packit Service fb6fa5
Packit Service fb6fa5
Packit Service fb6fa5
static void     gtk_ruler_set_property    (GObject        *object,
Packit Service fb6fa5
                                           guint            prop_id,
Packit Service fb6fa5
                                           const GValue   *value,
Packit Service fb6fa5
                                           GParamSpec     *pspec);
Packit Service fb6fa5
static void     gtk_ruler_get_property    (GObject        *object,
Packit Service fb6fa5
                                           guint           prop_id,
Packit Service fb6fa5
                                           GValue         *value,
Packit Service fb6fa5
                                           GParamSpec     *pspec);
Packit Service fb6fa5
static void     gtk_ruler_realize         (GtkWidget      *widget);
Packit Service fb6fa5
static void     gtk_ruler_unrealize       (GtkWidget      *widget);
Packit Service fb6fa5
static void     gtk_ruler_size_request    (GtkWidget      *widget,
Packit Service fb6fa5
                                           GtkRequisition *requisition);
Packit Service fb6fa5
static void     gtk_ruler_size_allocate   (GtkWidget      *widget,
Packit Service fb6fa5
                                           GtkAllocation  *allocation);
Packit Service fb6fa5
static gboolean gtk_ruler_motion_notify   (GtkWidget      *widget,
Packit Service fb6fa5
                                           GdkEventMotion *event);
Packit Service fb6fa5
static gboolean gtk_ruler_expose          (GtkWidget      *widget,
Packit Service fb6fa5
                                           GdkEventExpose *event);
Packit Service fb6fa5
static void     gtk_ruler_make_pixmap     (GtkRuler       *ruler);
Packit Service fb6fa5
static void     gtk_ruler_real_draw_ticks (GtkRuler       *ruler);
Packit Service fb6fa5
static void     gtk_ruler_real_draw_pos   (GtkRuler       *ruler);
Packit Service fb6fa5
Packit Service fb6fa5
Packit Service fb6fa5
static const GtkRulerMetric ruler_metrics[] =
Packit Service fb6fa5
{
Packit Service fb6fa5
  { "Pixel", "Pi", 1.0, { 1, 2, 5, 10, 25, 50, 100, 250, 500, 1000 }, { 1, 5, 10, 50, 100 }},
Packit Service fb6fa5
  { "Inches", "In", 72.0, { 1, 2, 4, 8, 16, 32, 64, 128, 256, 512 }, { 1, 2, 4, 8, 16 }},
Packit Service fb6fa5
  { "Centimeters", "Cn", 28.35, { 1, 2, 5, 10, 25, 50, 100, 250, 500, 1000 }, { 1, 5, 10, 50, 100 }},
Packit Service fb6fa5
};
Packit Service fb6fa5
Packit Service fb6fa5
Packit Service fb6fa5
G_DEFINE_TYPE_WITH_CODE (GtkRuler, gtk_ruler, GTK_TYPE_WIDGET,
Packit Service fb6fa5
                         G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
Packit Service fb6fa5
                                                NULL))
Packit Service fb6fa5
Packit Service fb6fa5
Packit Service fb6fa5
static void
Packit Service fb6fa5
gtk_ruler_class_init (GtkRulerClass *class)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GObjectClass   *gobject_class = G_OBJECT_CLASS (class);
Packit Service fb6fa5
  GtkWidgetClass *widget_class  = GTK_WIDGET_CLASS (class);
Packit Service fb6fa5
Packit Service fb6fa5
  gobject_class->set_property = gtk_ruler_set_property;
Packit Service fb6fa5
  gobject_class->get_property = gtk_ruler_get_property;
Packit Service fb6fa5
Packit Service fb6fa5
  widget_class->realize = gtk_ruler_realize;
Packit Service fb6fa5
  widget_class->unrealize = gtk_ruler_unrealize;
Packit Service fb6fa5
  widget_class->size_request = gtk_ruler_size_request;
Packit Service fb6fa5
  widget_class->size_allocate = gtk_ruler_size_allocate;
Packit Service fb6fa5
  widget_class->motion_notify_event = gtk_ruler_motion_notify;
Packit Service fb6fa5
  widget_class->expose_event = gtk_ruler_expose;
Packit Service fb6fa5
Packit Service fb6fa5
  class->draw_ticks = gtk_ruler_real_draw_ticks;
Packit Service fb6fa5
  class->draw_pos = gtk_ruler_real_draw_pos;
Packit Service fb6fa5
Packit Service fb6fa5
  g_object_class_override_property (gobject_class,
Packit Service fb6fa5
                                    PROP_ORIENTATION,
Packit Service fb6fa5
                                    "orientation");
Packit Service fb6fa5
Packit Service fb6fa5
  g_object_class_install_property (gobject_class,
Packit Service fb6fa5
                                   PROP_LOWER,
Packit Service fb6fa5
                                   g_param_spec_double ("lower",
Packit Service fb6fa5
							P_("Lower"),
Packit Service fb6fa5
							P_("Lower limit of ruler"),
Packit Service fb6fa5
							-G_MAXDOUBLE,
Packit Service fb6fa5
							G_MAXDOUBLE,
Packit Service fb6fa5
							0.0,
Packit Service fb6fa5
							GTK_PARAM_READWRITE));  
Packit Service fb6fa5
Packit Service fb6fa5
  g_object_class_install_property (gobject_class,
Packit Service fb6fa5
                                   PROP_UPPER,
Packit Service fb6fa5
                                   g_param_spec_double ("upper",
Packit Service fb6fa5
							P_("Upper"),
Packit Service fb6fa5
							P_("Upper limit of ruler"),
Packit Service fb6fa5
							-G_MAXDOUBLE,
Packit Service fb6fa5
							G_MAXDOUBLE,
Packit Service fb6fa5
							0.0,
Packit Service fb6fa5
							GTK_PARAM_READWRITE));  
Packit Service fb6fa5
Packit Service fb6fa5
  g_object_class_install_property (gobject_class,
Packit Service fb6fa5
                                   PROP_POSITION,
Packit Service fb6fa5
                                   g_param_spec_double ("position",
Packit Service fb6fa5
							P_("Position"),
Packit Service fb6fa5
							P_("Position of mark on the ruler"),
Packit Service fb6fa5
							-G_MAXDOUBLE,
Packit Service fb6fa5
							G_MAXDOUBLE,
Packit Service fb6fa5
							0.0,
Packit Service fb6fa5
							GTK_PARAM_READWRITE));  
Packit Service fb6fa5
Packit Service fb6fa5
  g_object_class_install_property (gobject_class,
Packit Service fb6fa5
                                   PROP_MAX_SIZE,
Packit Service fb6fa5
                                   g_param_spec_double ("max-size",
Packit Service fb6fa5
							P_("Max Size"),
Packit Service fb6fa5
							P_("Maximum size of the ruler"),
Packit Service fb6fa5
							-G_MAXDOUBLE,
Packit Service fb6fa5
							G_MAXDOUBLE,
Packit Service fb6fa5
							0.0,
Packit Service fb6fa5
							GTK_PARAM_READWRITE));  
Packit Service fb6fa5
  /**
Packit Service fb6fa5
   * GtkRuler:metric:
Packit Service fb6fa5
   *
Packit Service fb6fa5
   * The metric used for the ruler.
Packit Service fb6fa5
   *
Packit Service fb6fa5
   * Since: 2.8
Packit Service fb6fa5
   */
Packit Service fb6fa5
  g_object_class_install_property (gobject_class,
Packit Service fb6fa5
                                   PROP_METRIC,
Packit Service fb6fa5
                                   g_param_spec_enum ("metric",
Packit Service fb6fa5
						      P_("Metric"),
Packit Service fb6fa5
						      P_("The metric used for the ruler"),
Packit Service fb6fa5
						      GTK_TYPE_METRIC_TYPE, 
Packit Service fb6fa5
						      GTK_PIXELS,
Packit Service fb6fa5
						      GTK_PARAM_READWRITE));  
Packit Service fb6fa5
Packit Service fb6fa5
  g_type_class_add_private (gobject_class, sizeof (GtkRulerPrivate));
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static void
Packit Service fb6fa5
gtk_ruler_init (GtkRuler *ruler)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkWidget *widget = GTK_WIDGET (ruler);
Packit Service fb6fa5
  GtkRulerPrivate *private = GTK_RULER_GET_PRIVATE (ruler);
Packit Service fb6fa5
Packit Service fb6fa5
  private->orientation = GTK_ORIENTATION_HORIZONTAL;
Packit Service fb6fa5
Packit Service fb6fa5
  widget->requisition.width  = widget->style->xthickness * 2 + 1;
Packit Service fb6fa5
  widget->requisition.height = widget->style->ythickness * 2 + RULER_WIDTH;
Packit Service fb6fa5
Packit Service fb6fa5
  ruler->backing_store = NULL;
Packit Service fb6fa5
  ruler->xsrc = 0;
Packit Service fb6fa5
  ruler->ysrc = 0;
Packit Service fb6fa5
  ruler->slider_size = 0;
Packit Service fb6fa5
  ruler->lower = 0;
Packit Service fb6fa5
  ruler->upper = 0;
Packit Service fb6fa5
  ruler->position = 0;
Packit Service fb6fa5
  ruler->max_size = 0;
Packit Service fb6fa5
Packit Service fb6fa5
  gtk_ruler_set_metric (ruler, GTK_PIXELS);
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static void
Packit Service fb6fa5
gtk_ruler_set_property (GObject      *object,
Packit Service fb6fa5
 			guint         prop_id,
Packit Service fb6fa5
			const GValue *value,
Packit Service fb6fa5
			GParamSpec   *pspec)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkRuler *ruler = GTK_RULER (object);
Packit Service fb6fa5
  GtkRulerPrivate *private = GTK_RULER_GET_PRIVATE (ruler);
Packit Service fb6fa5
Packit Service fb6fa5
  switch (prop_id)
Packit Service fb6fa5
    {
Packit Service fb6fa5
    case PROP_ORIENTATION:
Packit Service fb6fa5
      private->orientation = g_value_get_enum (value);
Packit Service fb6fa5
      gtk_widget_queue_resize (GTK_WIDGET (ruler));
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    case PROP_LOWER:
Packit Service fb6fa5
      gtk_ruler_set_range (ruler, g_value_get_double (value), ruler->upper,
Packit Service fb6fa5
			   ruler->position, ruler->max_size);
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    case PROP_UPPER:
Packit Service fb6fa5
      gtk_ruler_set_range (ruler, ruler->lower, g_value_get_double (value),
Packit Service fb6fa5
			   ruler->position, ruler->max_size);
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    case PROP_POSITION:
Packit Service fb6fa5
      gtk_ruler_set_range (ruler, ruler->lower, ruler->upper,
Packit Service fb6fa5
			   g_value_get_double (value), ruler->max_size);
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    case PROP_MAX_SIZE:
Packit Service fb6fa5
      gtk_ruler_set_range (ruler, ruler->lower, ruler->upper,
Packit Service fb6fa5
			   ruler->position,  g_value_get_double (value));
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    case PROP_METRIC:
Packit Service fb6fa5
      gtk_ruler_set_metric (ruler, g_value_get_enum (value));
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    default:
Packit Service fb6fa5
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    }
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static void
Packit Service fb6fa5
gtk_ruler_get_property (GObject      *object,
Packit Service fb6fa5
			guint         prop_id,
Packit Service fb6fa5
			GValue       *value,
Packit Service fb6fa5
			GParamSpec   *pspec)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkRuler *ruler = GTK_RULER (object);
Packit Service fb6fa5
  GtkRulerPrivate *private = GTK_RULER_GET_PRIVATE (ruler);
Packit Service fb6fa5
Packit Service fb6fa5
  switch (prop_id)
Packit Service fb6fa5
    {
Packit Service fb6fa5
    case PROP_ORIENTATION:
Packit Service fb6fa5
      g_value_set_enum (value, private->orientation);
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    case PROP_LOWER:
Packit Service fb6fa5
      g_value_set_double (value, ruler->lower);
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    case PROP_UPPER:
Packit Service fb6fa5
      g_value_set_double (value, ruler->upper);
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    case PROP_POSITION:
Packit Service fb6fa5
      g_value_set_double (value, ruler->position);
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    case PROP_MAX_SIZE:
Packit Service fb6fa5
      g_value_set_double (value, ruler->max_size);
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    case PROP_METRIC:
Packit Service fb6fa5
      g_value_set_enum (value, gtk_ruler_get_metric (ruler));
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    default:
Packit Service fb6fa5
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
Packit Service fb6fa5
      break;
Packit Service fb6fa5
    }
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
void
Packit Service fb6fa5
gtk_ruler_set_metric (GtkRuler      *ruler,
Packit Service fb6fa5
		      GtkMetricType  metric)
Packit Service fb6fa5
{
Packit Service fb6fa5
  g_return_if_fail (GTK_IS_RULER (ruler));
Packit Service fb6fa5
Packit Service fb6fa5
  ruler->metric = (GtkRulerMetric *) &ruler_metrics[metric];
Packit Service fb6fa5
Packit Service fb6fa5
  if (gtk_widget_is_drawable (GTK_WIDGET (ruler)))
Packit Service fb6fa5
    gtk_widget_queue_draw (GTK_WIDGET (ruler));
Packit Service fb6fa5
Packit Service fb6fa5
  g_object_notify (G_OBJECT (ruler), "metric");
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
/**
Packit Service fb6fa5
 * gtk_ruler_get_metric:
Packit Service fb6fa5
 * @ruler: a #GtkRuler
Packit Service fb6fa5
 *
Packit Service fb6fa5
 * Gets the units used for a #GtkRuler. See gtk_ruler_set_metric().
Packit Service fb6fa5
 *
Packit Service fb6fa5
 * Return value: the units currently used for @ruler
Packit Service fb6fa5
 *
Packit Service fb6fa5
 * @Deprecated: 2.24: #GtkRuler has been removed from GTK 3 for being
Packit Service fb6fa5
 *              unmaintained and too specialized. There is no replacement.
Packit Service fb6fa5
 **/
Packit Service fb6fa5
GtkMetricType
Packit Service fb6fa5
gtk_ruler_get_metric (GtkRuler *ruler)
Packit Service fb6fa5
{
Packit Service fb6fa5
  gint i;
Packit Service fb6fa5
Packit Service fb6fa5
  g_return_val_if_fail (GTK_IS_RULER (ruler), 0);
Packit Service fb6fa5
Packit Service fb6fa5
  for (i = 0; i < G_N_ELEMENTS (ruler_metrics); i++)
Packit Service fb6fa5
    if (ruler->metric == &ruler_metrics[i])
Packit Service fb6fa5
      return i;
Packit Service fb6fa5
Packit Service fb6fa5
  g_assert_not_reached ();
Packit Service fb6fa5
Packit Service fb6fa5
  return 0;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
/**
Packit Service fb6fa5
 * gtk_ruler_set_range:
Packit Service fb6fa5
 * @ruler: the gtkruler
Packit Service fb6fa5
 * @lower: the lower limit of the ruler
Packit Service fb6fa5
 * @upper: the upper limit of the ruler
Packit Service fb6fa5
 * @position: the mark on the ruler
Packit Service fb6fa5
 * @max_size: the maximum size of the ruler used when calculating the space to
Packit Service fb6fa5
 * leave for the text
Packit Service fb6fa5
 *
Packit Service fb6fa5
 * This sets the range of the ruler. 
Packit Service fb6fa5
 *
Packit Service fb6fa5
 * @Deprecated: 2.24: #GtkRuler has been removed from GTK 3 for being
Packit Service fb6fa5
 *              unmaintained and too specialized. There is no replacement.
Packit Service fb6fa5
 */
Packit Service fb6fa5
void
Packit Service fb6fa5
gtk_ruler_set_range (GtkRuler *ruler,
Packit Service fb6fa5
		     gdouble   lower,
Packit Service fb6fa5
		     gdouble   upper,
Packit Service fb6fa5
		     gdouble   position,
Packit Service fb6fa5
		     gdouble   max_size)
Packit Service fb6fa5
{
Packit Service fb6fa5
  g_return_if_fail (GTK_IS_RULER (ruler));
Packit Service fb6fa5
Packit Service fb6fa5
  g_object_freeze_notify (G_OBJECT (ruler));
Packit Service fb6fa5
  if (ruler->lower != lower)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      ruler->lower = lower;
Packit Service fb6fa5
      g_object_notify (G_OBJECT (ruler), "lower");
Packit Service fb6fa5
    }
Packit Service fb6fa5
  if (ruler->upper != upper)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      ruler->upper = upper;
Packit Service fb6fa5
      g_object_notify (G_OBJECT (ruler), "upper");
Packit Service fb6fa5
    }
Packit Service fb6fa5
  if (ruler->position != position)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      ruler->position = position;
Packit Service fb6fa5
      g_object_notify (G_OBJECT (ruler), "position");
Packit Service fb6fa5
    }
Packit Service fb6fa5
  if (ruler->max_size != max_size)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      ruler->max_size = max_size;
Packit Service fb6fa5
      g_object_notify (G_OBJECT (ruler), "max-size");
Packit Service fb6fa5
    }
Packit Service fb6fa5
  g_object_thaw_notify (G_OBJECT (ruler));
Packit Service fb6fa5
Packit Service fb6fa5
  if (gtk_widget_is_drawable (GTK_WIDGET (ruler)))
Packit Service fb6fa5
    gtk_widget_queue_draw (GTK_WIDGET (ruler));
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
/**
Packit Service fb6fa5
 * gtk_ruler_get_range:
Packit Service fb6fa5
 * @ruler: a #GtkRuler
Packit Service fb6fa5
 * @lower: (allow-none): location to store lower limit of the ruler, or %NULL
Packit Service fb6fa5
 * @upper: (allow-none): location to store upper limit of the ruler, or %NULL
Packit Service fb6fa5
 * @position: (allow-none): location to store the current position of the mark on the ruler, or %NULL
Packit Service fb6fa5
 * @max_size: location to store the maximum size of the ruler used when calculating
Packit Service fb6fa5
 *            the space to leave for the text, or %NULL.
Packit Service fb6fa5
 *
Packit Service fb6fa5
 * Retrieves values indicating the range and current position of a #GtkRuler.
Packit Service fb6fa5
 * See gtk_ruler_set_range().
Packit Service fb6fa5
 *
Packit Service fb6fa5
 * @Deprecated: 2.24: #GtkRuler has been removed from GTK 3 for being
Packit Service fb6fa5
 *              unmaintained and too specialized. There is no replacement.
Packit Service fb6fa5
 **/
Packit Service fb6fa5
void
Packit Service fb6fa5
gtk_ruler_get_range (GtkRuler *ruler,
Packit Service fb6fa5
		     gdouble  *lower,
Packit Service fb6fa5
		     gdouble  *upper,
Packit Service fb6fa5
		     gdouble  *position,
Packit Service fb6fa5
		     gdouble  *max_size)
Packit Service fb6fa5
{
Packit Service fb6fa5
  g_return_if_fail (GTK_IS_RULER (ruler));
Packit Service fb6fa5
Packit Service fb6fa5
  if (lower)
Packit Service fb6fa5
    *lower = ruler->lower;
Packit Service fb6fa5
  if (upper)
Packit Service fb6fa5
    *upper = ruler->upper;
Packit Service fb6fa5
  if (position)
Packit Service fb6fa5
    *position = ruler->position;
Packit Service fb6fa5
  if (max_size)
Packit Service fb6fa5
    *max_size = ruler->max_size;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
void
Packit Service fb6fa5
gtk_ruler_draw_ticks (GtkRuler *ruler)
Packit Service fb6fa5
{
Packit Service fb6fa5
  g_return_if_fail (GTK_IS_RULER (ruler));
Packit Service fb6fa5
Packit Service fb6fa5
  if (GTK_RULER_GET_CLASS (ruler)->draw_ticks)
Packit Service fb6fa5
    GTK_RULER_GET_CLASS (ruler)->draw_ticks (ruler);
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
void
Packit Service fb6fa5
gtk_ruler_draw_pos (GtkRuler *ruler)
Packit Service fb6fa5
{
Packit Service fb6fa5
  g_return_if_fail (GTK_IS_RULER (ruler));
Packit Service fb6fa5
Packit Service fb6fa5
  if (GTK_RULER_GET_CLASS (ruler)->draw_pos)
Packit Service fb6fa5
     GTK_RULER_GET_CLASS (ruler)->draw_pos (ruler);
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
Packit Service fb6fa5
static void
Packit Service fb6fa5
gtk_ruler_realize (GtkWidget *widget)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkRuler *ruler;
Packit Service fb6fa5
  GdkWindowAttr attributes;
Packit Service fb6fa5
  gint attributes_mask;
Packit Service fb6fa5
Packit Service fb6fa5
  ruler = GTK_RULER (widget);
Packit Service fb6fa5
Packit Service fb6fa5
  gtk_widget_set_realized (widget, TRUE);
Packit Service fb6fa5
Packit Service fb6fa5
  attributes.window_type = GDK_WINDOW_CHILD;
Packit Service fb6fa5
  attributes.x = widget->allocation.x;
Packit Service fb6fa5
  attributes.y = widget->allocation.y;
Packit Service fb6fa5
  attributes.width = widget->allocation.width;
Packit Service fb6fa5
  attributes.height = widget->allocation.height;
Packit Service fb6fa5
  attributes.wclass = GDK_INPUT_OUTPUT;
Packit Service fb6fa5
  attributes.visual = gtk_widget_get_visual (widget);
Packit Service fb6fa5
  attributes.colormap = gtk_widget_get_colormap (widget);
Packit Service fb6fa5
  attributes.event_mask = gtk_widget_get_events (widget);
Packit Service fb6fa5
  attributes.event_mask |= (GDK_EXPOSURE_MASK |
Packit Service fb6fa5
			    GDK_POINTER_MOTION_MASK |
Packit Service fb6fa5
			    GDK_POINTER_MOTION_HINT_MASK);
Packit Service fb6fa5
Packit Service fb6fa5
  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
Packit Service fb6fa5
Packit Service fb6fa5
  widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
Packit Service fb6fa5
  gdk_window_set_user_data (widget->window, ruler);
Packit Service fb6fa5
Packit Service fb6fa5
  widget->style = gtk_style_attach (widget->style, widget->window);
Packit Service fb6fa5
  gtk_style_set_background (widget->style, widget->window, GTK_STATE_ACTIVE);
Packit Service fb6fa5
Packit Service fb6fa5
  gtk_ruler_make_pixmap (ruler);
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static void
Packit Service fb6fa5
gtk_ruler_unrealize (GtkWidget *widget)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkRuler *ruler = GTK_RULER (widget);
Packit Service fb6fa5
Packit Service fb6fa5
  if (ruler->backing_store)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      g_object_unref (ruler->backing_store);
Packit Service fb6fa5
      ruler->backing_store = NULL;
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  GTK_WIDGET_CLASS (gtk_ruler_parent_class)->unrealize (widget);
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static void
Packit Service fb6fa5
gtk_ruler_size_request (GtkWidget      *widget,
Packit Service fb6fa5
                        GtkRequisition *requisition)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkRulerPrivate *private = GTK_RULER_GET_PRIVATE (widget);
Packit Service fb6fa5
Packit Service fb6fa5
  if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      requisition->width  = widget->style->xthickness * 2 + 1;
Packit Service fb6fa5
      requisition->height = widget->style->ythickness * 2 + RULER_WIDTH;
Packit Service fb6fa5
    }
Packit Service fb6fa5
  else
Packit Service fb6fa5
    {
Packit Service fb6fa5
      requisition->width  = widget->style->xthickness * 2 + RULER_WIDTH;
Packit Service fb6fa5
      requisition->height = widget->style->ythickness * 2 + 1;
Packit Service fb6fa5
    }
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static void
Packit Service fb6fa5
gtk_ruler_size_allocate (GtkWidget     *widget,
Packit Service fb6fa5
			 GtkAllocation *allocation)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkRuler *ruler = GTK_RULER (widget);
Packit Service fb6fa5
Packit Service fb6fa5
  widget->allocation = *allocation;
Packit Service fb6fa5
Packit Service fb6fa5
  if (gtk_widget_get_realized (widget))
Packit Service fb6fa5
    {
Packit Service fb6fa5
      gdk_window_move_resize (widget->window,
Packit Service fb6fa5
			      allocation->x, allocation->y,
Packit Service fb6fa5
			      allocation->width, allocation->height);
Packit Service fb6fa5
Packit Service fb6fa5
      gtk_ruler_make_pixmap (ruler);
Packit Service fb6fa5
    }
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static gboolean
Packit Service fb6fa5
gtk_ruler_motion_notify (GtkWidget      *widget,
Packit Service fb6fa5
                         GdkEventMotion *event)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkRuler *ruler = GTK_RULER (widget);
Packit Service fb6fa5
  GtkRulerPrivate *private = GTK_RULER_GET_PRIVATE (widget);
Packit Service fb6fa5
  gint x;
Packit Service fb6fa5
  gint y;
Packit Service fb6fa5
Packit Service fb6fa5
  gdk_event_request_motions (event);
Packit Service fb6fa5
  x = event->x;
Packit Service fb6fa5
  y = event->y;
Packit Service fb6fa5
Packit Service fb6fa5
  if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
Packit Service fb6fa5
    ruler->position = ruler->lower + ((ruler->upper - ruler->lower) * x) / widget->allocation.width;
Packit Service fb6fa5
  else
Packit Service fb6fa5
    ruler->position = ruler->lower + ((ruler->upper - ruler->lower) * y) / widget->allocation.height;
Packit Service fb6fa5
Packit Service fb6fa5
  g_object_notify (G_OBJECT (ruler), "position");
Packit Service fb6fa5
Packit Service fb6fa5
  /*  Make sure the ruler has been allocated already  */
Packit Service fb6fa5
  if (ruler->backing_store != NULL)
Packit Service fb6fa5
    gtk_ruler_draw_pos (ruler);
Packit Service fb6fa5
Packit Service fb6fa5
  return FALSE;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static gboolean
Packit Service fb6fa5
gtk_ruler_expose (GtkWidget      *widget,
Packit Service fb6fa5
		  GdkEventExpose *event)
Packit Service fb6fa5
{
Packit Service fb6fa5
  if (gtk_widget_is_drawable (widget))
Packit Service fb6fa5
    {
Packit Service fb6fa5
      GtkRuler *ruler = GTK_RULER (widget);
Packit Service fb6fa5
      cairo_t *cr;
Packit Service fb6fa5
Packit Service fb6fa5
      gtk_ruler_draw_ticks (ruler);
Packit Service fb6fa5
      
Packit Service fb6fa5
      cr = gdk_cairo_create (widget->window);
Packit Service fb6fa5
      gdk_cairo_set_source_pixmap (cr, ruler->backing_store, 0, 0);
Packit Service fb6fa5
      gdk_cairo_rectangle (cr, &event->area);
Packit Service fb6fa5
      cairo_fill (cr);
Packit Service fb6fa5
      cairo_destroy (cr);
Packit Service fb6fa5
      
Packit Service fb6fa5
      gtk_ruler_draw_pos (ruler);
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  return FALSE;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static void
Packit Service fb6fa5
gtk_ruler_make_pixmap (GtkRuler *ruler)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkWidget *widget;
Packit Service fb6fa5
  gint width;
Packit Service fb6fa5
  gint height;
Packit Service fb6fa5
Packit Service fb6fa5
  widget = GTK_WIDGET (ruler);
Packit Service fb6fa5
Packit Service fb6fa5
  if (ruler->backing_store)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      gdk_drawable_get_size (ruler->backing_store, &width, &height);
Packit Service fb6fa5
      if ((width == widget->allocation.width) &&
Packit Service fb6fa5
	  (height == widget->allocation.height))
Packit Service fb6fa5
	return;
Packit Service fb6fa5
Packit Service fb6fa5
      g_object_unref (ruler->backing_store);
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  ruler->backing_store = gdk_pixmap_new (widget->window,
Packit Service fb6fa5
					 widget->allocation.width,
Packit Service fb6fa5
					 widget->allocation.height,
Packit Service fb6fa5
					 -1);
Packit Service fb6fa5
Packit Service fb6fa5
  ruler->xsrc = 0;
Packit Service fb6fa5
  ruler->ysrc = 0;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static void
Packit Service fb6fa5
gtk_ruler_real_draw_ticks (GtkRuler *ruler)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkWidget *widget = GTK_WIDGET (ruler);
Packit Service fb6fa5
  GtkRulerPrivate *private = GTK_RULER_GET_PRIVATE (ruler);
Packit Service fb6fa5
  cairo_t *cr;
Packit Service fb6fa5
  gint i, j;
Packit Service fb6fa5
  gint width, height;
Packit Service fb6fa5
  gint xthickness;
Packit Service fb6fa5
  gint ythickness;
Packit Service fb6fa5
  gint length, ideal_length;
Packit Service fb6fa5
  gdouble lower, upper;		/* Upper and lower limits, in ruler units */
Packit Service fb6fa5
  gdouble increment;		/* Number of pixels per unit */
Packit Service fb6fa5
  gint scale;			/* Number of units per major unit */
Packit Service fb6fa5
  gdouble subd_incr;
Packit Service fb6fa5
  gdouble start, end, cur;
Packit Service fb6fa5
  gchar unit_str[32];
Packit Service fb6fa5
  gint digit_height;
Packit Service fb6fa5
  gint digit_offset;
Packit Service fb6fa5
  gint text_width;
Packit Service fb6fa5
  gint text_height;
Packit Service fb6fa5
  gint pos;
Packit Service fb6fa5
  PangoLayout *layout;
Packit Service fb6fa5
  PangoRectangle logical_rect, ink_rect;
Packit Service fb6fa5
Packit Service fb6fa5
  if (!gtk_widget_is_drawable (widget))
Packit Service fb6fa5
    return;
Packit Service fb6fa5
Packit Service fb6fa5
  xthickness = widget->style->xthickness;
Packit Service fb6fa5
  ythickness = widget->style->ythickness;
Packit Service fb6fa5
Packit Service fb6fa5
  layout = gtk_widget_create_pango_layout (widget, "012456789");
Packit Service fb6fa5
  pango_layout_get_extents (layout, &ink_rect, &logical_rect);
Packit Service fb6fa5
Packit Service fb6fa5
  digit_height = PANGO_PIXELS (ink_rect.height) + 2;
Packit Service fb6fa5
  digit_offset = ink_rect.y;
Packit Service fb6fa5
Packit Service fb6fa5
  if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      width = widget->allocation.width;
Packit Service fb6fa5
      height = widget->allocation.height - ythickness * 2;
Packit Service fb6fa5
    }
Packit Service fb6fa5
  else
Packit Service fb6fa5
    {
Packit Service fb6fa5
      width = widget->allocation.height;
Packit Service fb6fa5
      height = widget->allocation.width - ythickness * 2;
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
#define DETAILE(private) (private->orientation == GTK_ORIENTATION_HORIZONTAL ? "hruler" : "vruler");
Packit Service fb6fa5
Packit Service fb6fa5
  gtk_paint_box (widget->style, ruler->backing_store,
Packit Service fb6fa5
		 GTK_STATE_NORMAL, GTK_SHADOW_OUT,
Packit Service fb6fa5
		 NULL, widget,
Packit Service fb6fa5
                 private->orientation == GTK_ORIENTATION_HORIZONTAL ?
Packit Service fb6fa5
                 "hruler" : "vruler",
Packit Service fb6fa5
		 0, 0,
Packit Service fb6fa5
		 widget->allocation.width, widget->allocation.height);
Packit Service fb6fa5
Packit Service fb6fa5
  cr = gdk_cairo_create (ruler->backing_store);
Packit Service fb6fa5
  gdk_cairo_set_source_color (cr, &widget->style->fg[widget->state]);
Packit Service fb6fa5
Packit Service fb6fa5
  if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      cairo_rectangle (cr,
Packit Service fb6fa5
                       xthickness,
Packit Service fb6fa5
                       height + ythickness,
Packit Service fb6fa5
                       widget->allocation.width - 2 * xthickness,
Packit Service fb6fa5
                       1);
Packit Service fb6fa5
    }
Packit Service fb6fa5
  else
Packit Service fb6fa5
    {
Packit Service fb6fa5
      cairo_rectangle (cr,
Packit Service fb6fa5
                       height + xthickness,
Packit Service fb6fa5
                       ythickness,
Packit Service fb6fa5
                       1,
Packit Service fb6fa5
                       widget->allocation.height - 2 * ythickness);
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  upper = ruler->upper / ruler->metric->pixels_per_unit;
Packit Service fb6fa5
  lower = ruler->lower / ruler->metric->pixels_per_unit;
Packit Service fb6fa5
Packit Service fb6fa5
  if ((upper - lower) == 0)
Packit Service fb6fa5
    goto out;
Packit Service fb6fa5
Packit Service fb6fa5
  increment = (gdouble) width / (upper - lower);
Packit Service fb6fa5
Packit Service fb6fa5
  /* determine the scale H
Packit Service fb6fa5
   *  We calculate the text size as for the vruler instead of using
Packit Service fb6fa5
   *  text_width = gdk_string_width(font, unit_str), so that the result
Packit Service fb6fa5
   *  for the scale looks consistent with an accompanying vruler
Packit Service fb6fa5
   */
Packit Service fb6fa5
  /* determine the scale V
Packit Service fb6fa5
   *   use the maximum extents of the ruler to determine the largest
Packit Service fb6fa5
   *   possible number to be displayed.  Calculate the height in pixels
Packit Service fb6fa5
   *   of this displayed text. Use this height to find a scale which
Packit Service fb6fa5
   *   leaves sufficient room for drawing the ruler.
Packit Service fb6fa5
   */
Packit Service fb6fa5
  scale = ceil (ruler->max_size / ruler->metric->pixels_per_unit);
Packit Service fb6fa5
  g_snprintf (unit_str, sizeof (unit_str), "%d", scale);
Packit Service fb6fa5
Packit Service fb6fa5
  if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      text_width = strlen (unit_str) * digit_height + 1;
Packit Service fb6fa5
Packit Service fb6fa5
      for (scale = 0; scale < MAXIMUM_SCALES; scale++)
Packit Service fb6fa5
        if (ruler->metric->ruler_scale[scale] * fabs(increment) > 2 * text_width)
Packit Service fb6fa5
          break;
Packit Service fb6fa5
    }
Packit Service fb6fa5
  else
Packit Service fb6fa5
    {
Packit Service fb6fa5
      text_height = strlen (unit_str) * digit_height + 1;
Packit Service fb6fa5
Packit Service fb6fa5
      for (scale = 0; scale < MAXIMUM_SCALES; scale++)
Packit Service fb6fa5
        if (ruler->metric->ruler_scale[scale] * fabs(increment) > 2 * text_height)
Packit Service fb6fa5
          break;
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  if (scale == MAXIMUM_SCALES)
Packit Service fb6fa5
    scale = MAXIMUM_SCALES - 1;
Packit Service fb6fa5
Packit Service fb6fa5
  /* drawing starts here */
Packit Service fb6fa5
  length = 0;
Packit Service fb6fa5
  for (i = MAXIMUM_SUBDIVIDE - 1; i >= 0; i--)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      subd_incr = (gdouble) ruler->metric->ruler_scale[scale] /
Packit Service fb6fa5
	          (gdouble) ruler->metric->subdivide[i];
Packit Service fb6fa5
      if (subd_incr * fabs(increment) <= MINIMUM_INCR)
Packit Service fb6fa5
	continue;
Packit Service fb6fa5
Packit Service fb6fa5
      /* Calculate the length of the tickmarks. Make sure that
Packit Service fb6fa5
       * this length increases for each set of ticks
Packit Service fb6fa5
       */
Packit Service fb6fa5
      ideal_length = height / (i + 1) - 1;
Packit Service fb6fa5
      if (ideal_length > ++length)
Packit Service fb6fa5
	length = ideal_length;
Packit Service fb6fa5
Packit Service fb6fa5
      if (lower < upper)
Packit Service fb6fa5
	{
Packit Service fb6fa5
	  start = floor (lower / subd_incr) * subd_incr;
Packit Service fb6fa5
	  end   = ceil  (upper / subd_incr) * subd_incr;
Packit Service fb6fa5
	}
Packit Service fb6fa5
      else
Packit Service fb6fa5
	{
Packit Service fb6fa5
	  start = floor (upper / subd_incr) * subd_incr;
Packit Service fb6fa5
	  end   = ceil  (lower / subd_incr) * subd_incr;
Packit Service fb6fa5
	}
Packit Service fb6fa5
Packit Service fb6fa5
      for (cur = start; cur <= end; cur += subd_incr)
Packit Service fb6fa5
	{
Packit Service fb6fa5
	  pos = ROUND ((cur - lower) * increment);
Packit Service fb6fa5
Packit Service fb6fa5
          if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
Packit Service fb6fa5
            {
Packit Service fb6fa5
              cairo_rectangle (cr,
Packit Service fb6fa5
                               pos, height + ythickness - length,
Packit Service fb6fa5
                               1,   length);
Packit Service fb6fa5
            }
Packit Service fb6fa5
          else
Packit Service fb6fa5
            {
Packit Service fb6fa5
              cairo_rectangle (cr,
Packit Service fb6fa5
                               height + xthickness - length, pos,
Packit Service fb6fa5
                               length,                       1);
Packit Service fb6fa5
            }
Packit Service fb6fa5
Packit Service fb6fa5
	  /* draw label */
Packit Service fb6fa5
	  if (i == 0)
Packit Service fb6fa5
	    {
Packit Service fb6fa5
	      g_snprintf (unit_str, sizeof (unit_str), "%d", (int) cur);
Packit Service fb6fa5
Packit Service fb6fa5
              if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
Packit Service fb6fa5
                {
Packit Service fb6fa5
                  pango_layout_set_text (layout, unit_str, -1);
Packit Service fb6fa5
                  pango_layout_get_extents (layout, &logical_rect, NULL);
Packit Service fb6fa5
Packit Service fb6fa5
                  gtk_paint_layout (widget->style,
Packit Service fb6fa5
                                    ruler->backing_store,
Packit Service fb6fa5
                                    gtk_widget_get_state (widget),
Packit Service fb6fa5
                                    FALSE,
Packit Service fb6fa5
                                    NULL,
Packit Service fb6fa5
                                    widget,
Packit Service fb6fa5
                                    "hruler",
Packit Service fb6fa5
                                    pos + 2, ythickness + PANGO_PIXELS (logical_rect.y - digit_offset),
Packit Service fb6fa5
                                    layout);
Packit Service fb6fa5
                }
Packit Service fb6fa5
              else
Packit Service fb6fa5
                {
Packit Service fb6fa5
                  for (j = 0; j < (int) strlen (unit_str); j++)
Packit Service fb6fa5
                    {
Packit Service fb6fa5
                      pango_layout_set_text (layout, unit_str + j, 1);
Packit Service fb6fa5
                      pango_layout_get_extents (layout, NULL, &logical_rect);
Packit Service fb6fa5
Packit Service fb6fa5
                      gtk_paint_layout (widget->style,
Packit Service fb6fa5
                                        ruler->backing_store,
Packit Service fb6fa5
                                        gtk_widget_get_state (widget),
Packit Service fb6fa5
                                        FALSE,
Packit Service fb6fa5
                                        NULL,
Packit Service fb6fa5
                                        widget,
Packit Service fb6fa5
                                        "vruler",
Packit Service fb6fa5
                                        xthickness + 1,
Packit Service fb6fa5
                                        pos + digit_height * j + 2 + PANGO_PIXELS (logical_rect.y - digit_offset),
Packit Service fb6fa5
                                        layout);
Packit Service fb6fa5
                    }
Packit Service fb6fa5
                }
Packit Service fb6fa5
	    }
Packit Service fb6fa5
	}
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  cairo_fill (cr);
Packit Service fb6fa5
out:
Packit Service fb6fa5
  cairo_destroy (cr);
Packit Service fb6fa5
Packit Service fb6fa5
  g_object_unref (layout);
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static void
Packit Service fb6fa5
gtk_ruler_real_draw_pos (GtkRuler *ruler)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkWidget *widget = GTK_WIDGET (ruler);
Packit Service fb6fa5
  GtkRulerPrivate *private = GTK_RULER_GET_PRIVATE (ruler);
Packit Service fb6fa5
  gint x, y;
Packit Service fb6fa5
  gint width, height;
Packit Service fb6fa5
  gint bs_width, bs_height;
Packit Service fb6fa5
  gint xthickness;
Packit Service fb6fa5
  gint ythickness;
Packit Service fb6fa5
  gdouble increment;
Packit Service fb6fa5
Packit Service fb6fa5
  if (gtk_widget_is_drawable (widget))
Packit Service fb6fa5
    {
Packit Service fb6fa5
      xthickness = widget->style->xthickness;
Packit Service fb6fa5
      ythickness = widget->style->ythickness;
Packit Service fb6fa5
      width = widget->allocation.width;
Packit Service fb6fa5
      height = widget->allocation.height;
Packit Service fb6fa5
Packit Service fb6fa5
      if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
Packit Service fb6fa5
        {
Packit Service fb6fa5
          height -= ythickness * 2;
Packit Service fb6fa5
Packit Service fb6fa5
          bs_width = height / 2 + 2;
Packit Service fb6fa5
          bs_width |= 1;  /* make sure it's odd */
Packit Service fb6fa5
          bs_height = bs_width / 2 + 1;
Packit Service fb6fa5
        }
Packit Service fb6fa5
      else
Packit Service fb6fa5
        {
Packit Service fb6fa5
          width -= xthickness * 2;
Packit Service fb6fa5
Packit Service fb6fa5
          bs_height = width / 2 + 2;
Packit Service fb6fa5
          bs_height |= 1;  /* make sure it's odd */
Packit Service fb6fa5
          bs_width = bs_height / 2 + 1;
Packit Service fb6fa5
        }
Packit Service fb6fa5
Packit Service fb6fa5
      if ((bs_width > 0) && (bs_height > 0))
Packit Service fb6fa5
	{
Packit Service fb6fa5
	  cairo_t *cr = gdk_cairo_create (widget->window);
Packit Service fb6fa5
Packit Service fb6fa5
	  /*  If a backing store exists, restore the ruler  */
Packit Service fb6fa5
	  if (ruler->backing_store)
Packit Service fb6fa5
            {
Packit Service fb6fa5
              cairo_t *cr = gdk_cairo_create (widget->window);
Packit Service fb6fa5
Packit Service fb6fa5
              gdk_cairo_set_source_pixmap (cr, ruler->backing_store, 0, 0);
Packit Service fb6fa5
              cairo_rectangle (cr, ruler->xsrc, ruler->ysrc, bs_width, bs_height);
Packit Service fb6fa5
              cairo_fill (cr);
Packit Service fb6fa5
Packit Service fb6fa5
              cairo_destroy (cr);
Packit Service fb6fa5
            }
Packit Service fb6fa5
Packit Service fb6fa5
          if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
Packit Service fb6fa5
            {
Packit Service fb6fa5
              increment = (gdouble) width / (ruler->upper - ruler->lower);
Packit Service fb6fa5
Packit Service fb6fa5
              x = ROUND ((ruler->position - ruler->lower) * increment) + (xthickness - bs_width) / 2 - 1;
Packit Service fb6fa5
              y = (height + bs_height) / 2 + ythickness;
Packit Service fb6fa5
            }
Packit Service fb6fa5
          else
Packit Service fb6fa5
            {
Packit Service fb6fa5
              increment = (gdouble) height / (ruler->upper - ruler->lower);
Packit Service fb6fa5
Packit Service fb6fa5
              x = (width + bs_width) / 2 + xthickness;
Packit Service fb6fa5
              y = ROUND ((ruler->position - ruler->lower) * increment) + (ythickness - bs_height) / 2 - 1;
Packit Service fb6fa5
            }
Packit Service fb6fa5
Packit Service fb6fa5
	  gdk_cairo_set_source_color (cr, &widget->style->fg[widget->state]);
Packit Service fb6fa5
Packit Service fb6fa5
	  cairo_move_to (cr, x, y);
Packit Service fb6fa5
Packit Service fb6fa5
          if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
Packit Service fb6fa5
            {
Packit Service fb6fa5
              cairo_line_to (cr, x + bs_width / 2.0, y + bs_height);
Packit Service fb6fa5
              cairo_line_to (cr, x + bs_width,       y);
Packit Service fb6fa5
            }
Packit Service fb6fa5
          else
Packit Service fb6fa5
            {
Packit Service fb6fa5
              cairo_line_to (cr, x + bs_width, y + bs_height / 2.0);
Packit Service fb6fa5
              cairo_line_to (cr, x,            y + bs_height);
Packit Service fb6fa5
            }
Packit Service fb6fa5
Packit Service fb6fa5
	  cairo_fill (cr);
Packit Service fb6fa5
Packit Service fb6fa5
	  cairo_destroy (cr);
Packit Service fb6fa5
Packit Service fb6fa5
	  ruler->xsrc = x;
Packit Service fb6fa5
	  ruler->ysrc = y;
Packit Service fb6fa5
	}
Packit Service fb6fa5
    }
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
#define __GTK_RULER_C__
Packit Service fb6fa5
#include "gtkaliasdef.c"