Initial release.

.gitignore

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+# OSX
+#
+.DS_Store
+
+# Xcode
+#
+build/
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata
+*.xccheckout
+*.moved-aside
+DerivedData
+*.hmap
+*.ipa
+*.xcuserstate
+project.xcworkspace
+
+# Android/IntelliJ
+#
+build/
+.idea
+.gradle
+local.properties
+*.iml
+
+# node.js
+#
+node_modules/
+npm-debug.log
+yarn-error.log
+
+# BUCK
+buck-out/
+\.buckd/
+*.keystore
+
+# fastlane
+#
+# It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the
+# screenshots whenever they are needed.
+# For more information about the recommended setup visit:
+# https://docs.fastlane.tools/best-practices/source-control/
+
+*/fastlane/report.xml
+*/fastlane/Preview.html
+*/fastlane/screenshots
+
+# Bundle artifact
+*.jsbundle

LICENSE

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+MIT License
+
+Copyright (c) 2019 Lue Hang
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# react-native-easy-view-transformer
+
+<a href="https://luehangs.site/marketplace/product/RN%20Posting%20Demo%20App%20Kit"><img src="https://luehangs.site/images/lh-mobile-strip.jpg" alt="LH LABS"/></a>
+<br/>
+<br/>
+
+> An easy and simple to use React Native component to transform and translate a view.

babel.config.js

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+module.exports = {
+  presets: ['module:metro-react-native-babel-preset'],
+};

metro.config.js

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+/**
+ * Metro configuration for React Native
+ * https://github.com/facebook/react-native
+ *
+ * @format
+ */
+
+module.exports = {
+  transformer: {
+    getTransformOptions: async () => ({
+      transform: {
+        experimentalImportSupport: false,
+        inlineRequires: false,
+      },
+    }),
+  },
+};

package.json

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+{
+  "version": "1.0.0",
+  "name": "react-native-easy-view-transformer",
+  "description": "An easy and simple to use React Native component to transform and translate a view.",
+  "keywords": [
+    "react-native-easy-view-transformer",
+    "react-native",
+    "config",
+    "zoom in",
+    "zoom out",
+    "double tap",
+    "panning",
+    "over scroll distance",
+    "over scroll resistance",
+    "on pinch",
+    "on single tap",
+    "scaling",
+    "view",
+    "transform",
+    "translate",
+    "images",
+    "ios",
+    "android"
+  ],
+  "homepage": "https://github.com/Luehang/react-native-easy-view-transformer",
+  "author": {
+    "name": "Lue Hang",
+    "email": "[email protected]",
+    "url": "https://www.luehangs.site"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Luehang/react-native-easy-view-transformer"
+  },
+  "bugs": {
+    "url": "https://github.com/Luehang/react-native-easy-view-transformer/issues"
+  },
+  "directories": {
+    "src": "./src"
+  },
+  "main": "./src/index.js",
+  "files": [
+    "/src",
+    "LICENSE",
+    "package.json",
+    "README.md"
+  ],
+  "dependencies": {
+    "prop-types": "^15.6.2",
+    "react-native-easy-guesture-responder": "^1.0.0",
+    "react-native-scrolling": "^1.0.0"
+  },
+  "peerDependencies": {
+    "react": "*",
+    "react-native": "*"
+  },
+  "devDependencies": {
+    "react": "16.8.3",
+    "react-native": "0.59.1",
+    "@babel/core": "^7.4.0",
+    "@babel/runtime": "^7.4.0",
+    "babel-jest": "^24.5.0",
+    "jest": "^24.5.0",
+    "metro-react-native-babel-preset": "^0.53.1",
+    "react-test-renderer": "16.8.3",
+    "babel-eslint": "^10.0.1",
+    "eslint": "^5.9.0",
+    "eslint-plugin-flowtype": "^3.2.0",
+    "eslint-plugin-import": "^2.14.0",
+    "eslint-plugin-jsx-a11y": "^6.1.2",
+    "eslint-plugin-react": "^7.11.1",
+    "eslint-plugin-react-native": "^3.5.0"
+  },
+  "jest": {
+    "preset": "react-native"
+  },
+  "scripts": {
+    "lint": "./node_modules/.bin/eslint src/",
+    "test": "jest"
+  },
+  "license": "MIT"
+}

src/Rect.js

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+export default class Rect {
+    constructor (left, top, right, bottom) {
+        this.left = left;
+        this.top = top;
+        this.right = right;
+        this.bottom = bottom;
+    }
+
+    set (left, top, right, bottom) {
+        this.left = left;
+        this.top = top;
+        this.right = right;
+        this.bottom = bottom;
+    }
+
+    width () {
+        return this.right - this.left;
+    }
+
+    height () {
+        return this.bottom - this.top;
+    }
+
+    centerX () {
+        return (this.left + this.right) / 2;
+    }
+
+    centerY () {
+        return (this.top + this.bottom) / 2;
+    }
+
+    offset (dx, dy) {
+        this.left += dx;
+        this.right += dx;
+        this.top += dy;
+        this.bottom += dy;
+        return this;
+    }
+
+    copy () {
+        return new Rect(
+            this.left,
+            this.top,
+            this.right,
+            this.bottom
+        );
+    }
+
+    equals (rect, epsilon) {
+        if (!epsilon) {
+            return (
+                this.left === rect.left &&
+                this.top === rect.top &&
+                this.right === rect.right &&
+                this.bottom === rect.bottom
+            );
+        } else {
+            return (
+                Math.abs(this.left - rect.left) < epsilon &&
+                Math.abs(this.top - rect.top) < epsilon &&
+                Math.abs(this.right - rect.right) < epsilon &&
+                Math.abs(this.bottom - rect.bottom) < epsilon
+            );
+        }
+    }
+
+    isValid () {
+        if (typeof this.left === "number" &&
+            typeof this.right === "number" &&
+            typeof this.top === "number" &&
+            typeof this.bottom === "number") {
+            return true;
+        }
+        return false;
+    }
+}