Diff: MotionEventConverter.cpp

Revision:

0:c41d29f1e0fb

Child:

1:5bfc165e8f08

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MotionEventConverter.cpp	Tue Jun 28 13:06:53 2016 +0000
@@ -0,0 +1,133 @@
+/* mbed Microcontroller Library
+ * Copyright (C) 2016 Renesas Electronics Corporation. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "MotionEventConverter.h"
+
+#define MULTI_TOUCH_NUM         (2)
+
+void MotionEventConverter::Process(TouchKey * p_touch, int (*cb_func)(MotionEvent event)) {
+    memset(touch_pos, 0, sizeof(touch_pos));
+    memset(touch_pos_last, 0, sizeof(touch_pos_last));
+    time_cnt = 0;
+    touch_num = 0;
+    touch_num_last = 0;
+
+    p_touch->Init();
+    t.reset();
+    t.start();
+
+    while (1) {
+        p_touch->WaitInt();
+        // Get Coordinates
+        touch_num = p_touch->GetCoordinates(MotionEvent::TOUCH_NUM_MAX, &touch_pos[0]);
+        time_cnt = t.read_ms();
+        event.clearPointerCount();
+        if ((touch_num_last == 0) && (touch_num >= MULTI_TOUCH_NUM)) {
+            // Two points are pressed at the same time
+            event.setPosData(0, touch_pos[0].x, touch_pos[0].y);
+            event.setActionInfo((0 << MotionEvent::ACTION_POINTER_INDEX_SHIFT) | ACTION_DOWN, time_cnt);
+            cb_func(event);
+
+            event.setPosData(1, touch_pos[1].x, touch_pos[1].y);
+            event.setActionInfo((1 << MotionEvent::ACTION_POINTER_INDEX_SHIFT) | ACTION_POINTER_DOWN, time_cnt);
+            cb_func(event);
+        } else if ((touch_num_last == 0) && (touch_num == 1)) {
+            // It was pressed only one point
+            if (touch_pos[0].valid != false) {
+                pidx = 0;
+            } else {
+                pidx = 1;
+            }
+            event.setPosData(pidx, touch_pos[pidx].x, touch_pos[pidx].y);
+            event.setActionInfo((0 << MotionEvent::ACTION_POINTER_INDEX_SHIFT) | ACTION_DOWN, time_cnt);
+            cb_func(event);
+        } else if ((touch_num_last == 1) && (touch_num == 2)) {
+            // The second point is pressed
+            event.setPosData(0, touch_pos[0].x, touch_pos[0].y);
+            event.setPosData(1, touch_pos[1].x, touch_pos[1].y);
+            if (touch_pos[0].valid != touch_pos_last[0].valid) {
+                pidx = 0;
+            } else {
+                pidx = 1;
+            }
+            event.setActionInfo((pidx << MotionEvent::ACTION_POINTER_INDEX_SHIFT) | ACTION_POINTER_DOWN, time_cnt);
+            cb_func(event);
+        } else if ((touch_num_last >= MULTI_TOUCH_NUM) && (touch_num == 0)) {
+            // Two points are released at the same time
+            event.setPosData(0, touch_pos_last[0].x, touch_pos_last[0].y);
+            event.setPosData(1, touch_pos_last[1].x, touch_pos_last[1].y);
+            event.setActionInfo((1 << MotionEvent::ACTION_POINTER_INDEX_SHIFT) | ACTION_POINTER_UP, time_cnt);
+            cb_func(event);
+
+            event.clearPointerCount();
+            event.setPosData(0, touch_pos_last[0].x, touch_pos_last[0].y);
+            event.setActionInfo((0 << MotionEvent::ACTION_POINTER_INDEX_SHIFT) | ACTION_UP, time_cnt);
+            cb_func(event);
+        } else if ((touch_num_last == 1) && (touch_num == 0)) {
+            // The last of one point is released
+            if (touch_pos[0].valid != touch_pos_last[0].valid) {
+                pidx = 0;
+            } else {
+                pidx = 1;
+            }
+            event.setPosData(pidx, touch_pos_last[pidx].x, touch_pos_last[pidx].y);
+            event.setActionInfo((0 << MotionEvent::ACTION_POINTER_INDEX_SHIFT) | ACTION_UP, time_cnt);
+            cb_func(event);
+        } else if ((touch_num_last >= MULTI_TOUCH_NUM) && (touch_num == 1)) {
+            // The second point is released
+            pidx = 0;
+            if (touch_pos[0].valid != false) {
+                event.setPosData(0, touch_pos[0].x, touch_pos[0].y);
+            } else {
+                event.setPosData(0, touch_pos_last[0].x, touch_pos_last[0].y);
+            }
+            if (touch_pos[1].valid != false) {
+                event.setPosData(1, touch_pos[1].x, touch_pos[1].y);
+            } else {
+                event.setPosData(1, touch_pos_last[1].x, touch_pos_last[1].y);
+                pidx = 1;
+            }
+            event.setActionInfo((pidx << MotionEvent::ACTION_POINTER_INDEX_SHIFT) | ACTION_POINTER_UP, time_cnt);
+            cb_func(event);
+        } else if (touch_num != 0) {
+            // Check whether the position has moved
+            bool moved = false;
+            for (int i = 0; i < MotionEvent::TOUCH_NUM_MAX; i++) {
+                if (touch_pos[i].valid != false) {
+                    event.setPosData(i, touch_pos[i].x, touch_pos[i].y);
+                    if ((touch_pos[i].x != touch_pos_last[i].x) || (touch_pos[i].y != touch_pos_last[i].y)) {
+                        moved = true;
+                        pidx  = i;
+                    }
+                }
+            }
+            if (moved != false) {
+                if (touch_num >= MULTI_TOUCH_NUM) {
+                    pidx = 0;
+                }
+                event.setActionInfo((pidx << MotionEvent::ACTION_POINTER_INDEX_SHIFT) | ACTION_MOVE, time_cnt);
+                cb_func(event);
+            }
+        } else {
+            // do nothing
+        }
+        touch_pos_last[0] = touch_pos[0];
+        touch_pos_last[1] = touch_pos[1];
+        touch_num_last = touch_num;
+    }
+}
+
+