499 lines
12 KiB
C
499 lines
12 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team.
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*/
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/*
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* GTK+ DirectFB backend
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* Copyright (C) 2001-2002 convergence integrated media GmbH
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* Copyright (C) 2002-2004 convergence GmbH
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* Written by Denis Oliver Kropp <dok@convergence.de> and
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* Sven Neumann <sven@convergence.de>
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*/
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#include "config.h"
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#include <string.h>
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#include "gdkdirectfb.h"
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#include "gdkprivate-directfb.h"
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#include "gdkproperty.h"
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#include "gdkselection.h"
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#include "gdkprivate.h"
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#include "gdkalias.h"
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typedef struct _OwnerInfo OwnerInfo;
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struct _OwnerInfo
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{
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GdkAtom selection;
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GdkWindow *owner;
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};
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GSList *owner_list = NULL;
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/* When a window is destroyed we check if it is the owner
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* of any selections. This is somewhat inefficient, but
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* owner_list is typically short, and it is a low memory,
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* low code solution
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*/
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void
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_gdk_selection_window_destroyed (GdkWindow *window)
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{
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GSList *tmp_list = owner_list;
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while (tmp_list)
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{
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OwnerInfo *info = tmp_list->data;
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tmp_list = tmp_list->next;
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if (info->owner == window)
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{
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owner_list = g_slist_remove (owner_list, info);
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g_free (info);
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}
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}
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}
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gint
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gdk_selection_owner_set_for_display (GdkDisplay *display,
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GdkWindow *owner,
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GdkAtom selection,
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guint32 time,
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gint send_event)
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{
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GSList *tmp_list;
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OwnerInfo *info;
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tmp_list = owner_list;
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while (tmp_list)
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{
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info = tmp_list->data;
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if (info->selection == selection)
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{
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owner_list = g_slist_remove (owner_list, info);
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g_free (info);
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break;
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}
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tmp_list = tmp_list->next;
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}
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if (owner)
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{
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info = g_new (OwnerInfo, 1);
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info->owner = owner;
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info->selection = selection;
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owner_list = g_slist_prepend (owner_list, info);
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}
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return TRUE;
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}
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GdkWindow *
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gdk_selection_owner_get_for_display (GdkDisplay *display,
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GdkAtom selection)
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{
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OwnerInfo *info;
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GSList *tmp_list;
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tmp_list = owner_list;
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while (tmp_list)
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{
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info = tmp_list->data;
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if (info->selection == selection)
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{
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return info->owner;
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}
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tmp_list = tmp_list->next;
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}
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return NULL;
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}
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void
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gdk_selection_convert (GdkWindow *requestor,
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GdkAtom selection,
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GdkAtom target,
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guint32 time)
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{
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GdkEvent *event;
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GdkWindow *owner;
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GdkWindow *event_window;
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owner = gdk_selection_owner_get (selection);
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if (owner)
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{
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event_window = gdk_directfb_other_event_window (owner,
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GDK_SELECTION_REQUEST);
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if (event_window)
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{
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event = gdk_directfb_event_make (event_window,
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GDK_SELECTION_REQUEST);
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event->selection.requestor = GDK_WINDOW_DFB_ID (requestor);
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event->selection.selection = selection;
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event->selection.target = target;
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event->selection.property = _gdk_selection_property;
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}
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}
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else
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{
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/* If no owner for the specified selection exists, the X server
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* generates a SelectionNotify event to the requestor with property None.
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*/
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gdk_selection_send_notify (GDK_WINDOW_DFB_ID (requestor),
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selection,
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target,
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GDK_NONE,
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0);
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}
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}
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gint
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gdk_selection_property_get (GdkWindow *requestor,
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guchar **data,
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GdkAtom *ret_type,
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gint *ret_format)
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{
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guchar *t = NULL;
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GdkAtom prop_type;
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gint prop_format;
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gint prop_len;
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g_return_val_if_fail (requestor != NULL, 0);
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g_return_val_if_fail (GDK_IS_WINDOW (requestor), 0);
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if (!gdk_property_get (requestor,
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_gdk_selection_property,
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0/*AnyPropertyType?*/,
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0, 0,
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FALSE,
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&prop_type, &prop_format, &prop_len,
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&t))
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{
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*data = NULL;
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return 0;
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}
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if (ret_type)
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*ret_type = prop_type;
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if (ret_format)
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*ret_format = prop_format;
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if (!gdk_property_get (requestor,
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_gdk_selection_property,
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0/*AnyPropertyType?*/,
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0, prop_len + 1,
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FALSE,
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&prop_type, &prop_format, &prop_len,
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&t))
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{
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*data = NULL;
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return 0;
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}
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*data = t;
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return prop_len;
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}
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void
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gdk_selection_send_notify_for_display (GdkDisplay *display,
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guint32 requestor,
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GdkAtom selection,
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GdkAtom target,
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GdkAtom property,
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guint32 time)
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{
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GdkEvent *event;
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GdkWindow *event_window;
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event_window = gdk_window_lookup ((GdkNativeWindow) requestor);
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if (!event_window)
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return;
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event_window = gdk_directfb_other_event_window (event_window,
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GDK_SELECTION_NOTIFY);
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if (event_window)
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{
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event = gdk_directfb_event_make (event_window, GDK_SELECTION_NOTIFY);
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event->selection.selection = selection;
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event->selection.target = target;
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event->selection.property = property;
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event->selection.requestor = (GdkNativeWindow) requestor;
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}
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}
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gint
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gdk_text_property_to_text_list_for_display (GdkDisplay *display,
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GdkAtom encoding,
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gint format,
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const guchar *text,
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gint length,
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gchar ***list)
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{
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g_warning ("gdk_text_property_to_text_list() not implemented\n");
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return 0;
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}
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void
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gdk_free_text_list (gchar **list)
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{
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g_return_if_fail (list != NULL);
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g_warning ("gdk_free_text_list() not implemented\n");
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}
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gint
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gdk_string_to_compound_text_for_display (GdkDisplay *display,
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const gchar *str,
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GdkAtom *encoding,
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gint *format,
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guchar **ctext,
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gint *length)
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{
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g_warning ("gdk_string_to_compound_text() not implemented\n");
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return 0;
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}
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void
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gdk_free_compound_text (guchar *ctext)
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{
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g_warning ("gdk_free_compound_text() not implemented\n");
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}
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/**
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* gdk_utf8_to_string_target:
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* @str: a UTF-8 string
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*
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* Convert an UTF-8 string into the best possible representation
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* as a STRING. The representation of characters not in STRING
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* is not specified; it may be as pseudo-escape sequences
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* \x{ABCD}, or it may be in some other form of approximation.
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*
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* Return value: the newly allocated string, or %NULL if the
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* conversion failed. (It should not fail for
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* any properly formed UTF-8 string.)
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**/
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gchar *
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gdk_utf8_to_string_target (const gchar *str)
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{
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g_warning ("gdk_utf8_to_string_target() not implemented\n");
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return 0;
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}
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/**
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* gdk_utf8_to_compound_text:
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* @str: a UTF-8 string
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* @encoding: location to store resulting encoding
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* @format: location to store format of the result
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* @ctext: location to store the data of the result
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* @length: location to store the length of the data
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* stored in @ctext
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*
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* Convert from UTF-8 to compound text.
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*
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* Return value: %TRUE if the conversion succeeded, otherwise
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* false.
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**/
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gboolean
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gdk_utf8_to_compound_text_for_display (GdkDisplay *display,
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const gchar *str,
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GdkAtom *encoding,
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gint *format,
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guchar **ctext,
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gint *length)
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{
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g_warning ("gdk_utf8_to_compound_text() not implemented\n");
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return 0;
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}
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static gint
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make_list (const gchar *text,
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gint length,
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gboolean latin1,
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gchar ***list)
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{
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GSList *strings = NULL;
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gint n_strings = 0;
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gint i;
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const gchar *p = text;
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const gchar *q;
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GSList *tmp_list;
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GError *error = NULL;
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while (p < text + length)
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{
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gchar *str;
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q = p;
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while (*q && q < text + length)
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q++;
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if (latin1)
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{
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str = g_convert (p, q - p,
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"UTF-8", "ISO-8859-1",
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NULL, NULL, &error);
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if (!str)
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{
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g_warning ("Error converting selection from STRING: %s",
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error->message);
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g_error_free (error);
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}
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}
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else
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str = g_strndup (p, q - p);
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if (str)
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{
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strings = g_slist_prepend (strings, str);
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n_strings++;
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}
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p = q + 1;
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}
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if (list)
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*list = g_new (gchar *, n_strings + 1);
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(*list)[n_strings] = NULL;
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i = n_strings;
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tmp_list = strings;
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while (tmp_list)
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{
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if (list)
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(*list)[--i] = tmp_list->data;
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else
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g_free (tmp_list->data);
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tmp_list = tmp_list->next;
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}
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g_slist_free (strings);
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return n_strings;
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}
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/**
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* gdk_text_property_to_utf8_list:
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* @encoding: an atom representing the encoding of the text
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* @format: the format of the property
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* @text: the text to convert
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* @length: the length of @text, in bytes
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* @list: location to store the list of strings or %NULL. The
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* list should be freed with g_strfreev().
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*
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* Convert a text property in the giving encoding to
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* a list of UTF-8 strings.
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*
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* Return value: the number of strings in the resulting
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* list.
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**/
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gint
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gdk_text_property_to_utf8_list_for_display (GdkDisplay *display,
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GdkAtom encoding,
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gint format,
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const guchar *text,
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gint length,
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gchar ***list)
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{
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g_return_val_if_fail (text != NULL, 0);
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g_return_val_if_fail (length >= 0, 0);
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if (encoding == GDK_TARGET_STRING)
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{
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return make_list ((gchar *)text, length, TRUE, list);
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}
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else if (encoding == gdk_atom_intern ("UTF8_STRING", FALSE))
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{
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return make_list ((gchar *)text, length, FALSE, list);
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}
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else
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{
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gchar **local_list;
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gint local_count;
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gint i;
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const gchar *charset = NULL;
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gboolean need_conversion = !g_get_charset (&charset);
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gint count = 0;
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GError *error = NULL;
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/* Probably COMPOUND text, we fall back to Xlib routines
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*/
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local_count = gdk_text_property_to_text_list (encoding,
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format,
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text,
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length,
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&local_list);
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if (list)
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*list = g_new (gchar *, local_count + 1);
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for (i = 0; i < local_count; i++)
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{
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/* list contains stuff in our default encoding
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*/
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if (need_conversion)
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{
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gchar *utf = g_convert (local_list[i], -1,
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"UTF-8", charset,
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NULL, NULL, &error);
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if (utf)
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{
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if (list)
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(*list)[count++] = utf;
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else
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g_free (utf);
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}
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else
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{
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g_warning ("Error converting to UTF-8 from '%s': %s",
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charset, error->message);
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g_error_free (error);
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error = NULL;
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}
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}
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else
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{
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if (list)
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(*list)[count++] = g_strdup (local_list[i]);
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}
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}
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gdk_free_text_list (local_list);
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(*list)[count] = NULL;
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return count;
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}
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}
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#define __GDK_SELECTION_X11_C__
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#include "gdkaliasdef.c"
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