1 files changed, 94 insertions, 0 deletions

diff --git a/src/gestures-touch.c b/src/gestures-touch.c
new file mode 100644
index 0000000..b6a2706
--- /dev/null
+++ b/src/gestures-touch.c
@@ -0,0 +1,94 @@
+/*****************************************************************************
+ *
+ * grail - Gesture Recognition And Instantiation Library
+ *
+ * Copyright (C) 2010 Canonical Ltd.
+ * Copyright (C) 2010 Henrik Rydberg <rydberg@bitmath.org>
+ *
+ * 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/>.
+ *
+ ****************************************************************************/
+
+#include "grail-recognizer.h"
+#include <math.h>
+#include <stdio.h>
+
+static const int getype[DIM_TOUCH + 1] = {
+        -1,
+        GRAIL_TYPE_TOUCH1,
+        GRAIL_TYPE_TOUCH2,
+        GRAIL_TYPE_TOUCH3,
+        GRAIL_TYPE_TOUCH4,
+        GRAIL_TYPE_TOUCH5,
+};
+
+int gru_touch(struct grail *ge,
+              const struct utouch_frame *frame)
+{
+        struct gesture_recognizer *gru = ge->gru;
+        struct combo_model *state = &gru->touch;
+        struct move_model *move = &gru->move;
+        if (frame->slot_revision != frame->prev->slot_revision) {
+                if (state->active) {
+                        gru_end(ge, state->gid, move,
+                                state->prop, state->nprop);
+                        state->active = 0;
+                }
+        }
+        if (!state->active) {
+                int type = getype[move->ntouch];
+                if (type <= 0)
+                        return 0;
+                state->gid = gin_gid_begin(ge, type, -PRIO_GESTURE, frame);
+                state->active = 1;
+        }
+        state->nprop = gin_add_contact_props(ge->gin, state->prop, frame);
+        gru_event(ge, state->gid, move, state->prop, state->nprop);
+        return 1;
+}
+
+int gru_wintouch(struct grail *ge,
+                 const struct utouch_frame *frame)
+{
+        struct gesture_recognizer *gru = ge->gru;
+        struct combo_model *state = &gru->wintouch;
+        struct move_model *move = &gru->move;
+        if (frame->slot_revision != frame->prev->slot_revision) {
+                if (state->active && out_of_bounds(state, move)) {
+                        gru_end(ge, state->gid, move,
+                                state->prop, state->nprop);
+                        state->active = 0;
+                }
+        }
+        if (!state->active) {
+                if (move->ntouch == 4) {
+                        state->gid = gin_gid_begin(ge, GRAIL_TYPE_MTOUCH,
+                                                   -PRIO_META, frame);
+                        state->mintouch = 1;
+                        state->maxtouch = 4;
+                        state->active = 1;
+                } else if (move->ntouch == 3) {
+                        state->gid = gin_gid_begin(ge, GRAIL_TYPE_ETOUCH,
+                                                   -PRIO_ENV, frame);
+                        state->mintouch = 1;
+                        state->maxtouch = 3;
+                        state->active = 1;
+                } else {
+                        return 0;
+                }
+        }
+        state->nprop = gin_add_contact_props(ge->gin, state->prop, frame);
+        gru_event(ge, state->gid, move, state->prop, state->nprop);
+        return 1;
+}