Pileus Git - ~andy/gtk/blob - gtk/gtkseparator.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include "config.h"
  28
  29 #include "gtkorientable.h"
  30 #include "gtkseparator.h"
  31 #include "gtkprivate.h"
  32 #include "gtkintl.h"
  33
  34 /**
  35  * SECTION:gtkseparator
  36  * @Short_description: Base class for GtkHSeparator and GtkVSeparator
  37  * @Title: GtkSeparator
  38  *
  39  * The GtkSeparator widget is the base class for #GtkHSeparator and
  40  * #GtkVSeparator. It can be used in the same way as these, by setting
  41  * the "orientation" property suitably.
  42  */
  43
  44
  45 enum {
  46   PROP_0,
  47   PROP_ORIENTATION
  48 };
  49
  50
  51 typedef struct _GtkSeparatorPrivate GtkSeparatorPrivate;
  52
  53 struct _GtkSeparatorPrivate
  54 {
  55   GtkOrientation orientation;
  56 };
  57
  58 #define GTK_SEPARATOR_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_SEPARATOR, GtkSeparatorPrivate))
  59
  60
  61 static void       gtk_separator_set_property (GObject        *object,
  62                                               guint           prop_id,
  63                                               const GValue   *value,
  64                                               GParamSpec     *pspec);
  65 static void       gtk_separator_get_property (GObject        *object,
  66                                               guint           prop_id,
  67                                               GValue         *value,
  68                                               GParamSpec     *pspec);
  69
  70 static void       gtk_separator_size_request (GtkWidget      *widget,
  71                                               GtkRequisition *requisition);
  72 static gboolean   gtk_separator_expose       (GtkWidget      *widget,
  73                                               GdkEventExpose *event);
  74
  75
  76 G_DEFINE_TYPE_WITH_CODE (GtkSeparator, gtk_separator, GTK_TYPE_WIDGET,
  77                          G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
  78                                                 NULL))
  79
  80
  81 static void
  82 gtk_separator_class_init (GtkSeparatorClass *class)
  83 {
  84   GObjectClass *object_class = G_OBJECT_CLASS (class);
  85   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
  86
  87   object_class->set_property = gtk_separator_set_property;
  88   object_class->get_property = gtk_separator_get_property;
  89
  90   widget_class->size_request = gtk_separator_size_request;
  91   widget_class->expose_event = gtk_separator_expose;
  92
  93   g_object_class_override_property (object_class,
  94                                     PROP_ORIENTATION,
  95                                     "orientation");
  96
  97   g_type_class_add_private (object_class, sizeof (GtkSeparatorPrivate));
  98 }
  99
 100 static void
 101 gtk_separator_init (GtkSeparator *separator)
 102 {
 103   GtkWidget *widget = GTK_WIDGET (separator);
 104   GtkSeparatorPrivate *private = GTK_SEPARATOR_GET_PRIVATE (separator);
 105
 106   gtk_widget_set_has_window (GTK_WIDGET (separator), FALSE);
 107
 108   private->orientation = GTK_ORIENTATION_HORIZONTAL;
 109
 110   widget->requisition.width  = 1;
 111   widget->requisition.height = widget->style->ythickness;
 112 }
 113
 114 static void
 115 gtk_separator_set_property (GObject      *object,
 116                             guint         prop_id,
 117                             const GValue *value,
 118                             GParamSpec   *pspec)
 119 {
 120   GtkSeparatorPrivate *private = GTK_SEPARATOR_GET_PRIVATE (object);
 121
 122   switch (prop_id)
 123     {
 124     case PROP_ORIENTATION:
 125       private->orientation = g_value_get_enum (value);
 126       gtk_widget_queue_resize (GTK_WIDGET (object));
 127       break;
 128     default:
 129       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 130       break;
 131     }
 132 }
 133
 134 static void
 135 gtk_separator_get_property (GObject    *object,
 136                             guint       prop_id,
 137                             GValue     *value,
 138                             GParamSpec *pspec)
 139 {
 140   GtkSeparatorPrivate *private = GTK_SEPARATOR_GET_PRIVATE (object);
 141
 142   switch (prop_id)
 143     {
 144     case PROP_ORIENTATION:
 145       g_value_set_enum (value, private->orientation);
 146       break;
 147     default:
 148       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 149       break;
 150     }
 151 }
 152
 153 static void
 154 gtk_separator_size_request (GtkWidget      *widget,
 155                             GtkRequisition *requisition)
 156 {
 157   GtkSeparatorPrivate *private = GTK_SEPARATOR_GET_PRIVATE (widget);
 158   gboolean wide_separators;
 159   gint     separator_width;
 160   gint     separator_height;
 161
 162   gtk_widget_style_get (widget,
 163                         "wide-separators",  &wide_separators,
 164                         "separator-width",  &separator_width,
 165                         "separator-height", &separator_height,
 166                         NULL);
 167
 168   requisition->width  = 1;
 169   requisition->height = 1;
 170
 171   if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
 172     {
 173       if (wide_separators)
 174         requisition->height = separator_height;
 175       else
 176         requisition->height = widget->style->ythickness;
 177     }
 178   else
 179     {
 180       if (wide_separators)
 181         requisition->width = separator_width;
 182       else
 183         requisition->width = widget->style->xthickness;
 184     }
 185 }
 186
 187 static gboolean
 188 gtk_separator_expose (GtkWidget      *widget,
 189                       GdkEventExpose *event)
 190 {
 191   GtkSeparatorPrivate *private = GTK_SEPARATOR_GET_PRIVATE (widget);
 192   gboolean wide_separators;
 193   gint     separator_width;
 194   gint     separator_height;
 195
 196   if (!gtk_widget_is_drawable (widget))
 197     return FALSE;
 198
 199   gtk_widget_style_get (widget,
 200                         "wide-separators",  &wide_separators,
 201                         "separator-width",  &separator_width,
 202                         "separator-height", &separator_height,
 203                         NULL);
 204
 205   if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
 206     {
 207       if (wide_separators)
 208         gtk_paint_box (widget->style, widget->window,
 209                        gtk_widget_get_state (widget), GTK_SHADOW_ETCHED_OUT,
 210                        &event->area, widget, "hseparator",
 211                        widget->allocation.x,
 212                        widget->allocation.y + (widget->allocation.height -
 213                                                separator_height) / 2,
 214                        widget->allocation.width,
 215                        separator_height);
 216       else
 217         gtk_paint_hline (widget->style, widget->window,
 218                          gtk_widget_get_state (widget),
 219                          &event->area, widget, "hseparator",
 220                          widget->allocation.x,
 221                          widget->allocation.x + widget->allocation.width - 1,
 222                          widget->allocation.y + (widget->allocation.height -
 223                                                  widget->style->ythickness) / 2);
 224     }
 225   else
 226     {
 227       if (wide_separators)
 228         gtk_paint_box (widget->style, widget->window,
 229                        gtk_widget_get_state (widget), GTK_SHADOW_ETCHED_OUT,
 230                        &event->area, widget, "vseparator",
 231                        widget->allocation.x + (widget->allocation.width -
 232                                                separator_width) / 2,
 233                        widget->allocation.y,
 234                        separator_width,
 235                        widget->allocation.height);
 236       else
 237         gtk_paint_vline (widget->style, widget->window,
 238                          gtk_widget_get_state (widget),
 239                          &event->area, widget, "vseparator",
 240                          widget->allocation.y,
 241                          widget->allocation.y + widget->allocation.height - 1,
 242                          widget->allocation.x + (widget->allocation.width -
 243                                                  widget->style->xthickness) / 2);
 244     }
 245
 246   return FALSE;
 247 }
 248
 249 /**
 250  * gtk_separator_new:
 251  * @orientation: the separator's orientation.
 252  *
 253  * Creates a new #GtkSeparator with the given orientation.
 254  *
 255  * Return value: a new #GtkSeparator.
 256  *
 257  * Since: 3.0
 258  **/
 259 GtkWidget *
 260 gtk_separator_new (GtkOrientation orientation)
 261 {
 262   return g_object_new (GTK_TYPE_SEPARATOR,
 263                        "orientation", orientation,
 264                        NULL);
 265 }