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_draw         (GtkWidget      *widget,
  68                                               cairo_t        *cr);
  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->draw         = gtk_separator_draw;
  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_draw (GtkWidget    *widget,
 190                     cairo_t      *cr)
 191 {
 192   GtkSeparator *separator = GTK_SEPARATOR (widget);
 193   GtkSeparatorPrivate *private = separator->priv;
 194   GtkStateType state;
 195   GtkStyle *style;
 196   GdkWindow *window;
 197   gboolean wide_separators;
 198   gint separator_width;
 199   gint separator_height;
 200   int width, height;
 201
 202   style = gtk_widget_get_style (widget);
 203   gtk_widget_style_get (widget,
 204                         "wide-separators",  &wide_separators,
 205                         "separator-width",  &separator_width,
 206                         "separator-height", &separator_height,
 207                         NULL);
 208
 209   window = gtk_widget_get_window (widget);
 210   state = gtk_widget_get_state (widget);
 211   width = gtk_widget_get_allocated_width (widget);
 212   height = gtk_widget_get_allocated_height (widget);
 213
 214   if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
 215     {
 216       if (wide_separators)
 217         gtk_cairo_paint_box (style, cr,
 218                        gtk_widget_get_state (widget), GTK_SHADOW_ETCHED_OUT,
 219                        widget, "hseparator",
 220                        0, (height - separator_height) / 2,
 221                        width, separator_height);
 222       else
 223         gtk_cairo_paint_hline (style, cr,
 224                          gtk_widget_get_state (widget),
 225                          widget, "hseparator",
 226                          0, width - 1,
 227                          (height - style->ythickness) / 2);
 228     }
 229   else
 230     {
 231       if (wide_separators)
 232         gtk_cairo_paint_box (style, cr,
 233                        gtk_widget_get_state (widget), GTK_SHADOW_ETCHED_OUT,
 234                        widget, "vseparator",
 235                        (width - separator_width) / 2, 0,
 236                        separator_width, height);
 237       else
 238         gtk_cairo_paint_vline (style, cr,
 239                          gtk_widget_get_state (widget),
 240                          widget, "vseparator",
 241                          0, height - 1,
 242                          (width - style->xthickness) / 2);
 243     }
 244
 245   return FALSE;
 246 }
 247
 248 /**
 249  * gtk_separator_new:
 250  * @orientation: the separator's orientation.
 251  *
 252  * Creates a new #GtkSeparator with the given orientation.
 253  *
 254  * Return value: a new #GtkSeparator.
 255  *
 256  * Since: 3.0
 257  **/
 258 GtkWidget *
 259 gtk_separator_new (GtkOrientation orientation)
 260 {
 261   return g_object_new (GTK_TYPE_SEPARATOR,
 262                        "orientation", orientation,
 263                        NULL);
 264 }