1 files changed, 66 insertions, 0 deletions
diff --git a/native/src/proximity_info.cpp b/native/src/proximity_info.cpp
new file mode 100644
index 000000000..209c31e6e
--- /dev/null
+++ b/native/src/proximity_info.cpp
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * 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 <stdio.h>
+#include <string.h>
+
+#define LOG_TAG "LatinIME: proximity_info.cpp"
+
+#include "proximity_info.h"
+
+namespace latinime {
+
+ProximityInfo::ProximityInfo(const int maxProximityCharsSize, const int keyboardWidth,
+        const int keyboardHeight, const int gridWidth, const int gridHeight,
+        const uint32_t *proximityCharsArray)
+        : MAX_PROXIMITY_CHARS_SIZE(maxProximityCharsSize), KEYBOARD_WIDTH(keyboardWidth),
+          KEYBOARD_HEIGHT(keyboardHeight), GRID_WIDTH(gridWidth), GRID_HEIGHT(gridHeight),
+          CELL_WIDTH((keyboardWidth + gridWidth - 1) / gridWidth),
+          CELL_HEIGHT((keyboardHeight + gridHeight - 1) / gridHeight) {
+    const int len = GRID_WIDTH * GRID_HEIGHT * MAX_PROXIMITY_CHARS_SIZE;
+    mProximityCharsArray = new uint32_t[len];
+    if (DEBUG_PROXIMITY_INFO) {
+        LOGI("Create proximity info array %d", len);
+    }
+    memcpy(mProximityCharsArray, proximityCharsArray, len * sizeof(mProximityCharsArray[0]));
+}
+
+ProximityInfo::~ProximityInfo() {
+    delete[] mProximityCharsArray;
+}
+
+inline int ProximityInfo::getStartIndexFromCoordinates(const int x, const int y) const {
+    return ((y / CELL_HEIGHT) * GRID_WIDTH + (x / CELL_WIDTH))
+            * MAX_PROXIMITY_CHARS_SIZE;
+}
+
+bool ProximityInfo::hasSpaceProximity(const int x, const int y) const {
+    const int startIndex = getStartIndexFromCoordinates(x, y);
+    if (DEBUG_PROXIMITY_INFO) {
+        LOGI("hasSpaceProximity: index %d", startIndex);
+    }
+    for (int i = 0; i < MAX_PROXIMITY_CHARS_SIZE; ++i) {
+        if (DEBUG_PROXIMITY_INFO) {
+            LOGI("Index: %d", mProximityCharsArray[startIndex + i]);
+        }
+        if (mProximityCharsArray[startIndex + i] == KEYCODE_SPACE) {
+            return true;
+        }
+    }
+    return false;
+}
+
+} // namespace latinime