1 files changed, 106 insertions, 0 deletions

diff --git a/src/gesture-dev.c b/src/gesture-dev.c
new file mode 100644
index 0000000..b49b8ea
--- /dev/null
+++ b/src/gesture-dev.c
@@ -0,0 +1,106 @@
+/*****************************************************************************
+ *
+ * grail - Gesture Recognition And Instantiation Library
+ *
+ * Copyright (C) 2010 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *      Henrik Rydberg <rydberg@bitmath.org>
+ *
+ ****************************************************************************/
+
+#include <gesture-dev.h>
+#include <gesture-buffer.h>
+#include <malloc.h>
+#include <string.h>
+#include <errno.h>
+
+#define DIM_CLIENT 32
+
+struct gedev_impl {
+        int nclient;
+        struct gesture_client *client[DIM_CLIENT];
+};
+
+int gedev_init(struct gesture_dev *dev, void *priv)
+{
+        struct gedev_impl *x;
+        x = calloc(1, sizeof(*x));
+        if (!x)
+                return -ENOMEM;
+        dev->impl = x;
+        dev->priv = priv;
+        return 0;
+}
+
+int gedev_attach_client(struct gesture_dev *dev,
+                         struct gesture_client *client)
+{
+        struct gedev_impl *x = dev->impl;
+        if (x->nclient >= DIM_CLIENT)
+                return -ENOMEM;
+        x->client[x->nclient++] = client;
+        return 0;
+}
+
+void gedev_flag(struct gesture_dev *dev,
+                const struct gesture_flag *flag)
+{
+        struct gedev_impl *x = dev->impl;
+        int i;
+        for (i = 0; i < x->nclient; i++)
+                client_flag(x->client[i], flag);
+}
+
+void gedev_event(struct gesture_dev *dev,
+                 const struct gesture_event *ev)
+{
+        struct gedev_impl *x = dev->impl;
+        int i;
+        for (i = 0; i < x->nclient; i++)
+                client_event(x->client[i], ev);
+}
+
+void gedev_sync(struct gesture_dev *dev)
+{
+        struct gedev_impl *x = dev->impl;
+        int i;
+        for (i = 0; i < x->nclient; i++)
+                client_sync(x->client[i]);
+}
+
+void gedev_detach_client(struct gesture_dev *dev,
+                         struct gesture_client *client)
+{
+        struct gedev_impl *x = dev->impl;
+        int i, j;
+        for (i = 0; i < x->nclient; i++)
+                if (x->client[i] == client)
+                        break;
+        if (i >= x->nclient)
+                return;
+        x->nclient--;
+        for (j = i; j < x->nclient; j++)
+                x->client[j] = x->client[j + 1];
+        for (j = x->nclient; j < DIM_CLIENT; j++)
+                x->client[j] = 0;
+}
+
+void gedev_destroy(struct gesture_dev *dev)
+{
+        free(dev->impl);
+        memset(dev, 0, sizeof(*dev));
+}