Added setTo(...) to set scale and position and sync touch listener for #50

.gitignore

@@ -1,4 +1,6 @@
 example/bin
 example/gen
+example/local.properties
 main/bin/
 main/gen/
+main/local.properties

example/AndroidManifest.xml

@@ -25,6 +25,7 @@
         <activity android:name="StandardImageProgrammatic"></activity>
         <activity android:name="StandardImageXML"></activity>
         <activity android:name="StandardImageXMLWithStartSettings"></activity>
+        <activity android:name="ChangeImage"></activity>
         <activity android:name="DoubleImage"></activity>
         <activity android:name="ScaleTypeCenter"></activity>
         <activity android:name="ScaleTypeCenterCrop"></activity>

example/build.xml

@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="Main" default="help">
+
+    <!-- The local.properties file is created and updated by the 'android' tool.
+         It contains the path to the SDK. It should *NOT* be checked into
+         Version Control Systems. -->
+    <property file="local.properties" />
+
+    <!-- The ant.properties file can be created by you. It is only edited by the
+         'android' tool to add properties to it.
+         This is the place to change some Ant specific build properties.
+         Here are some properties you may want to change/update:
+
+         source.dir
+             The name of the source directory. Default is 'src'.
+         out.dir
+             The name of the output directory. Default is 'bin'.
+
+         For other overridable properties, look at the beginning of the rules
+         files in the SDK, at tools/ant/build.xml
+
+         Properties related to the SDK location or the project target should
+         be updated using the 'android' tool with the 'update' action.
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems.
+
+         -->
+    <property file="ant.properties" />
+
+    <!-- if sdk.dir was not set from one of the property file, then
+         get it from the ANDROID_HOME env var.
+         This must be done before we load project.properties since
+         the proguard config can use sdk.dir -->
+    <property environment="env" />
+    <condition property="sdk.dir" value="${env.ANDROID_HOME}">
+        <isset property="env.ANDROID_HOME" />
+    </condition>
+
+    <!-- The project.properties file is created and updated by the 'android'
+         tool, as well as ADT.
+
+         This contains project specific properties such as project target, and library
+         dependencies. Lower level build properties are stored in ant.properties
+         (or in .classpath for Eclipse projects).
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems. -->
+    <loadproperties srcFile="project.properties" />
+
+    <!-- quick check on sdk.dir -->
+    <fail
+            message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through the ANDROID_HOME environment variable."
+            unless="sdk.dir"
+    />
+
+    <!--
+        Import per project custom build rules if present at the root of the project.
+        This is the place to put custom intermediary targets such as:
+            -pre-build
+            -pre-compile
+            -post-compile (This is typically used for code obfuscation.
+                           Compiled code location: ${out.classes.absolute.dir}
+                           If this is not done in place, override ${out.dex.input.absolute.dir})
+            -post-package
+            -post-build
+            -pre-clean
+    -->
+    <import file="custom_rules.xml" optional="true" />
+
+    <!-- Import the actual build file.
+
+         To customize existing targets, there are two options:
+         - Customize only one target:
+             - copy/paste the target into this file, *before* the
+               <import> task.
+             - customize it to your needs.
+         - Customize the whole content of build.xml
+             - copy/paste the content of the rules files (minus the top node)
+               into this file, replacing the <import> task.
+             - customize to your needs.
+
+         ***********************
+         ****** IMPORTANT ******
+         ***********************
+         In all cases you must update the value of version-tag below to read 'custom' instead of an integer,
+         in order to avoid having your file be overridden by tools such as "android update project"
+    -->
+    <!-- version-tag: 1 -->
+    <import file="${sdk.dir}/tools/ant/build.xml" />
+
+</project>

example/proguard-project.txt

@@ -0,0 +1,20 @@
+# To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

example/src/com/polites/android/example/ChangeImage.java

@@ -0,0 +1,39 @@
+package com.polites.android.example;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.view.ViewGroup;
+import android.widget.LinearLayout.LayoutParams;
+import com.polites.android.GestureImageView;
+
+public class ChangeImage extends Activity {
+
+	private GestureImageView view;
+	private static final int IMAGE_LOAD = 10001;
+	private final Handler handler = new Handler() {
+
+		@Override
+		public void handleMessage(Message msg) {
+			if(msg.what == IMAGE_LOAD) {
+				view.setImageResource(R.drawable.image);
+        view.redraw();
+			}
+			super.handleMessage(msg);
+		}
+	};
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.empty);
+        LayoutParams params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
+        view = new GestureImageView(this);
+        view.setImageResource(R.drawable.square);
+        view.setLayoutParams(params);
+        ViewGroup layout = (ViewGroup) findViewById(R.id.layout);
+        layout.addView(view);
+        handler.sendEmptyMessageDelayed(IMAGE_LOAD, 5000);
+    }
+}

example/src/com/polites/android/example/Main.java

@@ -40,6 +40,7 @@ public class Main extends ListActivity {
 		"Single Image Programmatic with onClick event", 
 		"Single Image Programmatic with start scale & position", 
 		"Single Image XML Layout with start scale & position", 
+    "Change Image (With delayed load)", 
 		"Double Image (With delayed load)", 
 		"ScaleType CENTER Large", 
 		"ScaleType CENTER_CROP Large", 
@@ -61,6 +62,7 @@ public class Main extends ListActivity {
 		StandardImageProgrammaticWithOnClick.class,
 		StandardImageProgrammaticWithStartSettings.class,
 		StandardImageXMLWithStartSettings.class,
+    ChangeImage.class,
 		DoubleImage.class,
 		ScaleTypeCenter.class,
 		ScaleTypeCenterCrop.class,

main/proguard-project.txt

@@ -0,0 +1,20 @@
+# To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

main/src/com/polites/android/GestureImageView.java

@@ -373,11 +373,15 @@ protected void initImage() {
 			if(colorFilter != null) {
 				this.drawable.setColorFilter(colorFilter);
 			}
+      // Keppel.Cao
+      layout = false;
+      startingScale = -1.0f;
 		}
-
 		if(!layout) {
 			requestLayout();
-			redraw();
+      // Keppel.Cao
+      // redraw();
+      reset();
 		}
 	}
 
@@ -494,6 +498,16 @@ public void reset() {
 		redraw();
 	}
 
+  public void setTo(float newX, float newY, float newScale) {
+    x = newX;
+    y = newY;
+    scaleAdjust = newScale;
+    if (gestureImageViewTouchListener != null) {
+        gestureImageViewTouchListener.setTo(newX, newY, newScale);
+    }
+    redraw();
+  }
+
 	public void setRotation(float rotation) {
 		this.rotation = rotation;
 	}

main/src/com/polites/android/GestureImageViewTouchListener.java

@@ -359,6 +359,7 @@ protected void handleUp() {
 
 		multiTouch = false;
 
+    //currentScale = image.getScale(); // fix by silentw for issue #27
 		initialDistance = 0;
 		lastScale = currentScale;
 
@@ -453,7 +454,7 @@ protected boolean handleDrag(float x, float y) {
 
 		return false;
 	}
-	
+
 	public void reset() {
 		currentScale = startingScale;
 		next.x = centerX;
@@ -463,7 +464,17 @@ public void reset() {
 		image.setPosition(next.x, next.y);
 		image.redraw();
 	}
-
+
+  public void setTo(float newX, float newY, float newScale) {
+    currentScale = newScale;
+    lastScale = newScale;
+    next.x = newX;
+    next.y = newY;
+    calculateBoundaries();
+    image.setScale(currentScale);
+    image.setPosition(next.x, next.y);
+    image.redraw();
+  }
 
 	public float getMaxScale() {
 		return maxScale;