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 #include "gtkalias.h"
  34
  35
  36 /**
  37  * SECTION:gtkseparator
  38  * @Short_description: Base class for GtkHSeparator and GtkVSeparator
  39  * @Title: GtkSeparator
  40  *
  41  * The GtkSeparator widget is the base class for #GtkHSeparator and
  42  * #GtkVSeparator. It can be used in the same way as these, by setting
  43  * the "orientation" property suitably.
  44  */
  45
  46
  47 enum {
  48   PROP_0,
  49   PROP_ORIENTATION
  50 };
  51
  52
  53 typedef struct _GtkSeparatorPrivate GtkSeparatorPrivate;
  54
  55 struct _GtkSeparatorPrivate
  56 {
  57   GtkOrientation orientation;
  58 };
  59
  60 #define GTK_SEPARATOR_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_SEPARATOR, GtkSeparatorPrivate))
  61
  62
  63 static void       gtk_separator_set_property (GObject        *object,
  64                                               guint           prop_id,
  65                                               const GValue   *value,
  66                                               GParamSpec     *pspec);
  67 static void       gtk_separator_get_property (GObject        *object,
  68                                               guint           prop_id,
  69                                               GValue         *value,
  70                                               GParamSpec     *pspec);
  71
  72 static void       gtk_separator_size_request (GtkWidget      *widget,
  73                                               GtkRequisition *requisition);
  74 static gboolean   gtk_separator_expose       (GtkWidget      *widget,
  75                                               GdkEventExpose *event);
  76
  77
  78 G_DEFINE_TYPE_WITH_CODE (GtkSeparator, gtk_separator, GTK_TYPE_WIDGET,
  79                          G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
  80                                                 NULL))
  81
  82
  83 static void
  84 gtk_separator_class_init (GtkSeparatorClass *class)
  85 {
  86   GObjectClass *object_class = G_OBJECT_CLASS (class);
  87   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
  88
  89   object_class->set_property = gtk_separator_set_property;
  90   object_class->get_property = gtk_separator_get_property;
  91
  92   widget_class->size_request = gtk_separator_size_request;
  93   widget_class->expose_event = gtk_separator_expose;
  94
  95   g_object_class_override_property (object_class,
  96                                     PROP_ORIENTATION,
  97                                     "orientation");
  98
  99   g_type_class_add_private (object_class, sizeof (GtkSeparatorPrivate));
 100 }
 101
 102 static void
 103 gtk_separator_init (GtkSeparator *separator)
 104 {
 105   GtkWidget *widget = GTK_WIDGET (separator);
 106   GtkSeparatorPrivate *private = GTK_SEPARATOR_GET_PRIVATE (separator);
 107
 108   gtk_widget_set_has_window (GTK_WIDGET (separator), FALSE);
 109
 110   private->orientation = GTK_ORIENTATION_HORIZONTAL;
 111
 112   widget->requisition.width  = 1;
 113   widget->requisition.height = widget->style->ythickness;
 114 }
 115
 116 static void
 117 gtk_separator_set_property (GObject      *object,
 118                             guint         prop_id,
 119                             const GValue *value,
 120                             GParamSpec   *pspec)
 121 {
 122   GtkSeparatorPrivate *private = GTK_SEPARATOR_GET_PRIVATE (object);
 123
 124   switch (prop_id)
 125     {
 126     case PROP_ORIENTATION:
 127       private->orientation = g_value_get_enum (value);
 128       gtk_widget_queue_resize (GTK_WIDGET (object));
 129       break;
 130     default:
 131       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 132       break;
 133     }
 134 }
 135
 136 static void
 137 gtk_separator_get_property (GObject    *object,
 138                             guint       prop_id,
 139                             GValue     *value,
 140                             GParamSpec *pspec)
 141 {
 142   GtkSeparatorPrivate *private = GTK_SEPARATOR_GET_PRIVATE (object);
 143
 144   switch (prop_id)
 145     {
 146     case PROP_ORIENTATION:
 147       g_value_set_enum (value, private->orientation);
 148       break;
 149     default:
 150       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 151       break;
 152     }
 153 }
 154
 155 static void
 156 gtk_separator_size_request (GtkWidget      *widget,
 157                             GtkRequisition *requisition)
 158 {
 159   GtkSeparatorPrivate *private = GTK_SEPARATOR_GET_PRIVATE (widget);
 160   gboolean wide_separators;
 161   gint     separator_width;
 162   gint     separator_height;
 163
 164   gtk_widget_style_get (widget,
 165                         "wide-separators",  &wide_separators,
 166                         "separator-width",  &separator_width,
 167                         "separator-height", &separator_height,
 168                         NULL);
 169
 170   requisition->width  = 1;
 171   requisition->height = 1;
 172
 173   if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
 174     {
 175       if (wide_separators)
 176         requisition->height = separator_height;
 177       else
 178         requisition->height = widget->style->ythickness;
 179     }
 180   else
 181     {
 182       if (wide_separators)
 183         requisition->width = separator_width;
 184       else
 185         requisition->width = widget->style->xthickness;
 186     }
 187 }
 188
 189 static gboolean
 190 gtk_separator_expose (GtkWidget      *widget,
 191                       GdkEventExpose *event)
 192 {
 193   GtkSeparatorPrivate *private = GTK_SEPARATOR_GET_PRIVATE (widget);
 194   gboolean wide_separators;
 195   gint     separator_width;
 196   gint     separator_height;
 197
 198   if (!gtk_widget_is_drawable (widget))
 199     return FALSE;
 200
 201   gtk_widget_style_get (widget,
 202                         "wide-separators",  &wide_separators,
 203                         "separator-width",  &separator_width,
 204                         "separator-height", &separator_height,
 205                         NULL);
 206
 207   if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
 208     {
 209       if (wide_separators)
 210         gtk_paint_box (widget->style, widget->window,
 211                        gtk_widget_get_state (widget), GTK_SHADOW_ETCHED_OUT,
 212                        &event->area, widget, "hseparator",
 213                        widget->allocation.x,
 214                        widget->allocation.y + (widget->allocation.height -
 215                                                separator_height) / 2,
 216                        widget->allocation.width,
 217                        separator_height);
 218       else
 219         gtk_paint_hline (widget->style, widget->window,
 220                          gtk_widget_get_state (widget),
 221                          &event->area, widget, "hseparator",
 222                          widget->allocation.x,
 223                          widget->allocation.x + widget->allocation.width - 1,
 224                          widget->allocation.y + (widget->allocation.height -
 225                                                  widget->style->ythickness) / 2);
 226     }
 227   else
 228     {
 229       if (wide_separators)
 230         gtk_paint_box (widget->style, widget->window,
 231                        gtk_widget_get_state (widget), GTK_SHADOW_ETCHED_OUT,
 232                        &event->area, widget, "vseparator",
 233                        widget->allocation.x + (widget->allocation.width -
 234                                                separator_width) / 2,
 235                        widget->allocation.y,
 236                        separator_width,
 237                        widget->allocation.height);
 238       else
 239         gtk_paint_vline (widget->style, widget->window,
 240                          gtk_widget_get_state (widget),
 241                          &event->area, widget, "vseparator",
 242                          widget->allocation.y,
 243                          widget->allocation.y + widget->allocation.height - 1,
 244                          widget->allocation.x + (widget->allocation.width -
 245                                                  widget->style->xthickness) / 2);
 246     }
 247
 248   return FALSE;
 249 }
 250
 251 /**
 252  * gtk_separator_new:
 253  * @orientation: the separator's orientation.
 254  *
 255  * Creates a new #GtkSeparator with the given orientation.
 256  *
 257  * Return value: a new #GtkSeparator.
 258  *
 259  * Since: 3.0
 260  **/
 261 GtkWidget *
 262 gtk_separator_new (GtkOrientation orientation)
 263 {
 264   return g_object_new (GTK_TYPE_SEPARATOR,
 265                        "orientation", orientation,
 266                        NULL);
 267 }
 268
 269
 270 #define __GTK_SEPARATOR_C__
 271 #include "gtkaliasdef.c"