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 struct _GtkSeparatorPrivate
  46 {
  47   GtkOrientation orientation;
  48 };
  49
  50
  51 enum {
  52   PROP_0,
  53   PROP_ORIENTATION
  54 };
  55
  56 static void       gtk_separator_set_property (GObject        *object,
  57                                               guint           prop_id,
  58                                               const GValue   *value,
  59                                               GParamSpec     *pspec);
  60 static void       gtk_separator_get_property (GObject        *object,
  61                                               guint           prop_id,
  62                                               GValue         *value,
  63                                               GParamSpec     *pspec);
  64
  65 static void       gtk_separator_size_request (GtkWidget      *widget,
  66                                               GtkRequisition *requisition);
  67 static gboolean   gtk_separator_expose       (GtkWidget      *widget,
  68                                               GdkEventExpose *event);
  69
  70
  71 G_DEFINE_TYPE_WITH_CODE (GtkSeparator, gtk_separator, GTK_TYPE_WIDGET,
  72                          G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
  73                                                 NULL))
  74
  75
  76 static void
  77 gtk_separator_class_init (GtkSeparatorClass *class)
  78 {
  79   GObjectClass *object_class = G_OBJECT_CLASS (class);
  80   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
  81
  82   object_class->set_property = gtk_separator_set_property;
  83   object_class->get_property = gtk_separator_get_property;
  84
  85   widget_class->size_request = gtk_separator_size_request;
  86   widget_class->expose_event = gtk_separator_expose;
  87
  88   g_object_class_override_property (object_class,
  89                                     PROP_ORIENTATION,
  90                                     "orientation");
  91
  92   g_type_class_add_private (object_class, sizeof (GtkSeparatorPrivate));
  93 }
  94
  95 static void
  96 gtk_separator_init (GtkSeparator *separator)
  97 {
  98   GtkSeparatorPrivate *private;
  99
 100   separator->priv = G_TYPE_INSTANCE_GET_PRIVATE (separator,
 101                                                  GTK_TYPE_SEPARATOR,
 102                                                  GtkSeparatorPrivate);
 103   private = separator->priv;
 104
 105   gtk_widget_set_has_window (GTK_WIDGET (separator), FALSE);
 106
 107   private->orientation = GTK_ORIENTATION_HORIZONTAL;
 108 }
 109
 110 static void
 111 gtk_separator_set_property (GObject      *object,
 112                             guint         prop_id,
 113                             const GValue *value,
 114                             GParamSpec   *pspec)
 115 {
 116   GtkSeparator *separator = GTK_SEPARATOR (object);
 117   GtkSeparatorPrivate *private = separator->priv;
 118
 119   switch (prop_id)
 120     {
 121     case PROP_ORIENTATION:
 122       private->orientation = g_value_get_enum (value);
 123       gtk_widget_queue_resize (GTK_WIDGET (object));
 124       break;
 125     default:
 126       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 127       break;
 128     }
 129 }
 130
 131 static void
 132 gtk_separator_get_property (GObject    *object,
 133                             guint       prop_id,
 134                             GValue     *value,
 135                             GParamSpec *pspec)
 136 {
 137   GtkSeparator *separator = GTK_SEPARATOR (object);
 138   GtkSeparatorPrivate *private = separator->priv;
 139
 140   switch (prop_id)
 141     {
 142     case PROP_ORIENTATION:
 143       g_value_set_enum (value, private->orientation);
 144       break;
 145     default:
 146       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 147       break;
 148     }
 149 }
 150
 151 static void
 152 gtk_separator_size_request (GtkWidget      *widget,
 153                             GtkRequisition *requisition)
 154 {
 155   GtkSeparator *separator = GTK_SEPARATOR (widget);
 156   GtkSeparatorPrivate *private = separator->priv;
 157   GtkStyle *style;
 158   gboolean wide_separators;
 159   gint     separator_width;
 160   gint     separator_height;
 161
 162   style = gtk_widget_get_style (widget);
 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 = style->ythickness;
 178     }
 179   else
 180     {
 181       if (wide_separators)
 182         requisition->width = separator_width;
 183       else
 184         requisition->width = style->xthickness;
 185     }
 186 }
 187
 188 static gboolean
 189 gtk_separator_expose (GtkWidget      *widget,
 190                       GdkEventExpose *event)
 191 {
 192   GtkSeparator *separator = GTK_SEPARATOR (widget);
 193   GtkSeparatorPrivate *private = separator->priv;
 194   GtkAllocation allocation;
 195   GtkStateType state;
 196   GtkStyle *style;
 197   GdkWindow *window;
 198   gboolean wide_separators;
 199   gint     separator_width;
 200   gint     separator_height;
 201
 202   if (!gtk_widget_is_drawable (widget))
 203     return FALSE;
 204
 205   style = gtk_widget_get_style (widget);
 206   gtk_widget_style_get (widget,
 207                         "wide-separators",  &wide_separators,
 208                         "separator-width",  &separator_width,
 209                         "separator-height", &separator_height,
 210                         NULL);
 211
 212   window = gtk_widget_get_window (widget);
 213   state = gtk_widget_get_state (widget);
 214   gtk_widget_get_allocation (widget, &allocation);
 215
 216   if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
 217     {
 218       if (wide_separators)
 219         gtk_paint_box (style, window,
 220                        state, GTK_SHADOW_ETCHED_OUT,
 221                        &event->area, widget, "hseparator",
 222                        allocation.x,
 223                        allocation.y + (allocation.height - separator_height) / 2,
 224                        allocation.width,
 225                        separator_height);
 226       else
 227         gtk_paint_hline (style, window,
 228                          state,
 229                          &event->area, widget, "hseparator",
 230                          allocation.x,
 231                          allocation.x + allocation.width - 1,
 232                          allocation.y + (allocation.height - style->ythickness) / 2);
 233     }
 234   else
 235     {
 236       if (wide_separators)
 237         gtk_paint_box (style, window,
 238                        state, GTK_SHADOW_ETCHED_OUT,
 239                        &event->area, widget, "vseparator",
 240                        allocation.x + (allocation.width - separator_width) / 2,
 241                        allocation.y,
 242                        separator_width,
 243                        allocation.height);
 244       else
 245         gtk_paint_vline (style, window,
 246                          state,
 247                          &event->area, widget, "vseparator",
 248                          allocation.y,
 249                          allocation.y + allocation.height - 1,
 250                          allocation.x + (allocation.width - style->xthickness) / 2);
 251     }
 252
 253   return FALSE;
 254 }
 255
 256 /**
 257  * gtk_separator_new:
 258  * @orientation: the separator's orientation.
 259  *
 260  * Creates a new #GtkSeparator with the given orientation.
 261  *
 262  * Return value: a new #GtkSeparator.
 263  *
 264  * Since: 3.0
 265  **/
 266 GtkWidget *
 267 gtk_separator_new (GtkOrientation orientation)
 268 {
 269   return g_object_new (GTK_TYPE_SEPARATOR,
 270                        "orientation", orientation,
 271                        NULL);
 272 }