Touch actions (#5)

Signed-off-by: Jorge Ruesga <jorge@ruesga.com>

1 files changed, 58 insertions, 0 deletions

diff --git a/src/org/cyanogenmod/wallpapers/photophase/utils/Utils.java b/src/org/cyanogenmod/wallpapers/photophase/utils/Utils.java
new file mode 100644
index 0000000..03aa8c6
--- /dev/null
+++ b/src/org/cyanogenmod/wallpapers/photophase/utils/Utils.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2013 The CyanogenMod 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.
+ */
+
+package org.cyanogenmod.wallpapers.photophase.utils;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.RectF;
+import android.util.DisplayMetrics;
+
+/**
+ * A helper class with utilities
+ */
+public class Utils {
+
+    /**
+     * This method converts dp unit to equivalent device specific value in pixels.
+     *
+     * @param ctx The current context
+     * @param dp A value in dp (Device independent pixels) unit
+     * @return float A float value to represent Pixels equivalent to dp according to device
+     */
+    public static float convertDpToPixel(Context ctx, float dp) {
+        Resources resources = ctx.getResources();
+        DisplayMetrics metrics = resources.getDisplayMetrics();
+        return dp * (metrics.densityDpi / 160f);
+    }
+
+
+
+    /**
+     * Method that converts a rect from a vertex data
+     *
+     * @param vertex The vertex array
+     * @return RectF The rect data
+     */
+    public static RectF rectFromVertex(float[] vertex) {
+        RectF rect = new RectF();
+        rect.left = vertex[0];
+        rect.top = vertex[1];
+        rect.right = vertex[6];
+        rect.bottom = vertex[7];
+        return rect;
+    }
+}
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