add gdkkeys.[hc]

2000-12-03  Havoc Pennington  <hp@pobox.com>

* gdk/Makefile.am: add gdkkeys.[hc]

* gdk/gdkkeys.h, gdk/gdkkeys.c: Move all the keyval stuff to these
files from gdk.h, gdk.c; add GdkKeymap type and operations on it.

* acconfig.h, configure.in: add checks and command line options
for XKB

* gdk/x11/gdkkeys-x11.c: Implement the above functions

* gdk/x11/gdkevents-x11.c (gdk_event_translate): Put the keycode
and group in the key event

* gdk/gdkevents.h (struct _GdkEventKey): Add a hardware_keycode
field with the low-level hardware key code, and a group
field with the keyboard group

* gdk/x11/gdkprivate-x11.h: include config.h for HAVE_XKB,
and declare a couple globals used for keymap handling

* gtk/gtkimcontextsimple.c: Implement ISO 14755 input method,
hold down Shift-Control and type a hex number to get a Unicode
character corresponding to the hex number
(gtk_im_context_simple_get_preedit_string): Fix cursor position
(return bytes not chars)

1 files changed, 280 insertions, 0 deletions

diff --git a/gdk/gdkkeys.c b/gdk/gdkkeys.c
new file mode 100644
index 0000000000..9b5911fd30
--- /dev/null
+++ b/gdk/gdkkeys.c
@@ -0,0 +1,280 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 2000 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
+ * file for a list of people on the GTK+ Team.  See the ChangeLog
+ * files for a list of changes.  These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
+ */
+
+#include "gdkkeys.h"
+#include <config.h>
+
+static void gdk_keymap_init       (GdkKeymap      *keymap);
+static void gdk_keymap_class_init (GdkKeymapClass *klass);
+static void gdk_keymap_finalize   (GObject              *object);
+
+static gpointer parent_class = NULL;
+
+GType
+gdk_keymap_get_type (void)
+{
+  static GType object_type = 0;
+
+  if (!object_type)
+    {
+      static const GTypeInfo object_info =
+      {
+        sizeof (GdkKeymapClass),
+        (GBaseInitFunc) NULL,
+        (GBaseFinalizeFunc) NULL,
+        (GClassInitFunc) gdk_keymap_class_init,
+        NULL,           /* class_finalize */
+        NULL,           /* class_data */
+        sizeof (GdkKeymap),
+        0,              /* n_preallocs */
+        (GInstanceInitFunc) gdk_keymap_init,
+      };
+      
+      object_type = g_type_register_static (G_TYPE_OBJECT,
+                                            "GdkKeymap",
+                                            &object_info, 0);
+    }
+  
+  return object_type;
+}
+
+static void
+gdk_keymap_init (GdkKeymap *keymap)
+{
+
+}
+
+static void
+gdk_keymap_class_init (GdkKeymapClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  parent_class = g_type_class_peek_parent (klass);
+
+  object_class->finalize = gdk_keymap_finalize;
+}
+
+static void
+gdk_keymap_finalize (GObject *object)
+{
+  GdkKeymap *keymap = GDK_KEYMAP (object);
+  
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+GdkKeymap*
+gdk_keymap_get_default (void)
+{
+  static GdkKeymap *keymap = NULL;
+
+  if (keymap == NULL)
+    keymap = g_object_new (gdk_keymap_get_type (), NULL);
+
+  return keymap;
+}
+
+
+
+/* Other key-handling stuff
+ */
+
+#ifndef HAVE_XCONVERTCASE
+/* compatibility function from X11R6.3, since XConvertCase is not
+ * supplied by X11R5.
+ */
+void
+gdk_keyval_convert_case (guint symbol,
+			 guint *lower,
+			 guint *upper)
+{
+  guint xlower = symbol;
+  guint xupper = symbol;
+
+  switch (symbol >> 8)
+    {
+#if	defined (GDK_A) && defined (GDK_Ooblique)
+    case 0: /* Latin 1 */
+      if ((symbol >= GDK_A) && (symbol <= GDK_Z))
+	xlower += (GDK_a - GDK_A);
+      else if ((symbol >= GDK_a) && (symbol <= GDK_z))
+	xupper -= (GDK_a - GDK_A);
+      else if ((symbol >= GDK_Agrave) && (symbol <= GDK_Odiaeresis))
+	xlower += (GDK_agrave - GDK_Agrave);
+      else if ((symbol >= GDK_agrave) && (symbol <= GDK_odiaeresis))
+	xupper -= (GDK_agrave - GDK_Agrave);
+      else if ((symbol >= GDK_Ooblique) && (symbol <= GDK_Thorn))
+	xlower += (GDK_oslash - GDK_Ooblique);
+      else if ((symbol >= GDK_oslash) && (symbol <= GDK_thorn))
+	xupper -= (GDK_oslash - GDK_Ooblique);
+      break;
+#endif	/* LATIN1 */
+      
+#if	defined (GDK_Aogonek) && defined (GDK_tcedilla)
+    case 1: /* Latin 2 */
+      /* Assume the KeySym is a legal value (ignore discontinuities) */
+      if (symbol == GDK_Aogonek)
+	xlower = GDK_aogonek;
+      else if (symbol >= GDK_Lstroke && symbol <= GDK_Sacute)
+	xlower += (GDK_lstroke - GDK_Lstroke);
+      else if (symbol >= GDK_Scaron && symbol <= GDK_Zacute)
+	xlower += (GDK_scaron - GDK_Scaron);
+      else if (symbol >= GDK_Zcaron && symbol <= GDK_Zabovedot)
+	xlower += (GDK_zcaron - GDK_Zcaron);
+      else if (symbol == GDK_aogonek)
+	xupper = GDK_Aogonek;
+      else if (symbol >= GDK_lstroke && symbol <= GDK_sacute)
+	xupper -= (GDK_lstroke - GDK_Lstroke);
+      else if (symbol >= GDK_scaron && symbol <= GDK_zacute)
+	xupper -= (GDK_scaron - GDK_Scaron);
+      else if (symbol >= GDK_zcaron && symbol <= GDK_zabovedot)
+	xupper -= (GDK_zcaron - GDK_Zcaron);
+      else if (symbol >= GDK_Racute && symbol <= GDK_Tcedilla)
+	xlower += (GDK_racute - GDK_Racute);
+      else if (symbol >= GDK_racute && symbol <= GDK_tcedilla)
+	xupper -= (GDK_racute - GDK_Racute);
+      break;
+#endif	/* LATIN2 */
+      
+#if	defined (GDK_Hstroke) && defined (GDK_Cabovedot)
+    case 2: /* Latin 3 */
+      /* Assume the KeySym is a legal value (ignore discontinuities) */
+      if (symbol >= GDK_Hstroke && symbol <= GDK_Hcircumflex)
+	xlower += (GDK_hstroke - GDK_Hstroke);
+      else if (symbol >= GDK_Gbreve && symbol <= GDK_Jcircumflex)
+	xlower += (GDK_gbreve - GDK_Gbreve);
+      else if (symbol >= GDK_hstroke && symbol <= GDK_hcircumflex)
+	xupper -= (GDK_hstroke - GDK_Hstroke);
+      else if (symbol >= GDK_gbreve && symbol <= GDK_jcircumflex)
+	xupper -= (GDK_gbreve - GDK_Gbreve);
+      else if (symbol >= GDK_Cabovedot && symbol <= GDK_Scircumflex)
+	xlower += (GDK_cabovedot - GDK_Cabovedot);
+      else if (symbol >= GDK_cabovedot && symbol <= GDK_scircumflex)
+	xupper -= (GDK_cabovedot - GDK_Cabovedot);
+      break;
+#endif	/* LATIN3 */
+      
+#if	defined (GDK_Rcedilla) && defined (GDK_Amacron)
+    case 3: /* Latin 4 */
+      /* Assume the KeySym is a legal value (ignore discontinuities) */
+      if (symbol >= GDK_Rcedilla && symbol <= GDK_Tslash)
+	xlower += (GDK_rcedilla - GDK_Rcedilla);
+      else if (symbol >= GDK_rcedilla && symbol <= GDK_tslash)
+	xupper -= (GDK_rcedilla - GDK_Rcedilla);
+      else if (symbol == GDK_ENG)
+	xlower = GDK_eng;
+      else if (symbol == GDK_eng)
+	xupper = GDK_ENG;
+      else if (symbol >= GDK_Amacron && symbol <= GDK_Umacron)
+	xlower += (GDK_amacron - GDK_Amacron);
+      else if (symbol >= GDK_amacron && symbol <= GDK_umacron)
+	xupper -= (GDK_amacron - GDK_Amacron);
+      break;
+#endif	/* LATIN4 */
+      
+#if	defined (GDK_Serbian_DJE) && defined (GDK_Cyrillic_yu)
+    case 6: /* Cyrillic */
+      /* Assume the KeySym is a legal value (ignore discontinuities) */
+      if (symbol >= GDK_Serbian_DJE && symbol <= GDK_Serbian_DZE)
+	xlower -= (GDK_Serbian_DJE - GDK_Serbian_dje);
+      else if (symbol >= GDK_Serbian_dje && symbol <= GDK_Serbian_dze)
+	xupper += (GDK_Serbian_DJE - GDK_Serbian_dje);
+      else if (symbol >= GDK_Cyrillic_YU && symbol <= GDK_Cyrillic_HARDSIGN)
+	xlower -= (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
+      else if (symbol >= GDK_Cyrillic_yu && symbol <= GDK_Cyrillic_hardsign)
+	xupper += (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
+      break;
+#endif	/* CYRILLIC */
+      
+#if	defined (GDK_Greek_ALPHAaccent) && defined (GDK_Greek_finalsmallsigma)
+    case 7: /* Greek */
+      /* Assume the KeySym is a legal value (ignore discontinuities) */
+      if (symbol >= GDK_Greek_ALPHAaccent && symbol <= GDK_Greek_OMEGAaccent)
+	xlower += (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
+      else if (symbol >= GDK_Greek_alphaaccent && symbol <= GDK_Greek_omegaaccent &&
+	       symbol != GDK_Greek_iotaaccentdieresis &&
+	       symbol != GDK_Greek_upsilonaccentdieresis)
+	xupper -= (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
+      else if (symbol >= GDK_Greek_ALPHA && symbol <= GDK_Greek_OMEGA)
+	xlower += (GDK_Greek_alpha - GDK_Greek_ALPHA);
+      else if (symbol >= GDK_Greek_alpha && symbol <= GDK_Greek_omega &&
+	       symbol != GDK_Greek_finalsmallsigma)
+	xupper -= (GDK_Greek_alpha - GDK_Greek_ALPHA);
+      break;
+#endif	/* GREEK */
+    }
+
+  if (lower)
+    *lower = xlower;
+  if (upper)
+    *upper = xupper;
+}
+#endif
+
+guint
+gdk_keyval_to_upper (guint keyval)
+{
+  guint result;
+  
+  gdk_keyval_convert_case (keyval, NULL, &result);
+
+  return result;
+}
+
+guint
+gdk_keyval_to_lower (guint keyval)
+{
+  guint result;
+  
+  gdk_keyval_convert_case (keyval, &result, NULL);
+
+  return result;
+}
+
+gboolean
+gdk_keyval_is_upper (guint keyval)
+{
+  if (keyval)
+    {
+      guint upper_val = 0;
+      
+      gdk_keyval_convert_case (keyval, NULL, &upper_val);
+      return upper_val == keyval;
+    }
+  return FALSE;
+}
+
+gboolean
+gdk_keyval_is_lower (guint keyval)
+{
+  if (keyval)
+    {
+      guint lower_val = 0;
+      
+      gdk_keyval_convert_case (keyval, &lower_val, NULL);
+      return lower_val == keyval;
+    }
+  return FALSE;
+}