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