refactor the filter/editor relationship

Change-Id: I1f9a735166c28c65734fbb85201774fb6f664076

4 files changed, 286 insertions, 0 deletions

diff --git a/src/com/android/gallery3d/filtershow/editors/BasicEditor.java b/src/com/android/gallery3d/filtershow/editors/BasicEditor.java
new file mode 100644
index 000000000..c28a56438
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/editors/BasicEditor.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.gallery3d.filtershow.editors;
+
+import com.android.gallery3d.R;
+import com.android.gallery3d.filtershow.filters.ImageFilter;
+
+import android.content.Context;
+import android.util.Log;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.SeekBar;
+import android.widget.SeekBar.OnSeekBarChangeListener;
+
+/**
+ * The basic editor that all the one parameter filters
+ */
+public class BasicEditor extends Editor implements OnSeekBarChangeListener {
+    public static int ID = R.id.basicEditor;
+    private SeekBar mSeekBar;
+    private final String LOGTAG = "Editor";
+
+    public BasicEditor() {
+        super(ID);
+    }
+
+    @Override
+    public void createEditor(Context context, FrameLayout frameLayout) {
+        super.createEditor(context, frameLayout);
+        unpack(R.id.basicEditor, R.layout.filtershow_default_editor);
+        mSeekBar = (SeekBar) mView.findViewById(R.id.filterSeekBar);
+        mSeekBar.setOnSeekBarChangeListener(this);
+    }
+
+    @Override
+    public void reflectCurrentFilter() {
+        ImageFilter filter = mImageShow.getCurrentFilter();
+        if (filter == null) {
+            return;
+        }
+        boolean f = filter.showParameterValue();
+        mSeekBar.setVisibility((f) ? View.VISIBLE : View.INVISIBLE);
+        int parameter = filter.getParameter();
+        int maxp = filter.getMaxParameter();
+        int minp = filter.getMinParameter();
+        mSeekBar.setMax(maxp - minp);
+        mSeekBar.setProgress(parameter - minp);
+    }
+
+    @Override
+    public void onProgressChanged(SeekBar sbar, int progress, boolean arg2) {
+        ImageFilter filter = mImageShow.getCurrentFilter();
+        int minp = filter.getMinParameter();
+        int value = progress + minp;
+        mImageShow.onNewValue(value);
+        mView.invalidate();
+        if (filter.showParameterValue()) {
+            mPanelController.onNewValue(value);
+        }
+
+        Log.v(LOGTAG, "    #### progress=" + value);
+    }
+
+    @Override
+    public void onStartTrackingTouch(SeekBar arg0) {
+    }
+
+    @Override
+    public void onStopTrackingTouch(SeekBar arg0) {
+    }
+}
diff --git a/src/com/android/gallery3d/filtershow/editors/Editor.java b/src/com/android/gallery3d/filtershow/editors/Editor.java
new file mode 100644
index 000000000..a9b2fd425
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/editors/Editor.java
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.gallery3d.filtershow.editors;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+import android.widget.LinearLayout;
+
+import com.android.gallery3d.filtershow.PanelController;
+import com.android.gallery3d.filtershow.cache.ImageLoader;
+import com.android.gallery3d.filtershow.imageshow.ImageShow;
+
+/**
+ * Base class for Editors Must contain a mImageShow and a top level view
+ */
+public class Editor {
+    protected Context mContext;
+    protected View mView;
+    protected ImageShow mImageShow;
+    protected FrameLayout mFrameLayout;
+    protected PanelController mPanelController;
+    protected int mID;
+    private final String LOGTAG = "Editor";
+
+    public void setPanelController(PanelController panelController) {
+        this.mPanelController = panelController;
+    }
+
+    protected Editor(int id) {
+        mID = id;
+    }
+    public int getID() {
+        return mID;
+    }
+
+    public void createEditor(Context context,FrameLayout frameLayout) {
+        mContext = context;
+        mFrameLayout = frameLayout;
+    }
+
+    protected void unpack(int viewid, int layoutid) {
+
+        if (mView == null) {
+            mView = mFrameLayout.findViewById(viewid);
+            if (mView == null) {
+                LayoutInflater inflater = (LayoutInflater) mContext.getSystemService
+                        (Context.LAYOUT_INFLATER_SERVICE);
+                mView = inflater.inflate(layoutid, mFrameLayout, false);
+                mFrameLayout.addView(mView, mView.getLayoutParams());
+            }
+        }
+        mImageShow = findImageShow(mView);
+    }
+
+    private ImageShow findImageShow(View view) {
+        if (view instanceof ImageShow) {
+            return (ImageShow) view;
+        }
+        if (!(view instanceof ViewGroup)) {
+            return null;
+        }
+        ViewGroup vg = (ViewGroup) view;
+        int n = vg.getChildCount();
+        for (int i = 0; i < n; i++) {
+            View v = vg.getChildAt(i);
+            if (v instanceof ImageShow) {
+                return (ImageShow) v;
+            } else if (v instanceof ViewGroup) {
+                return findImageShow(v);
+            }
+        }
+        return null;
+    }
+
+    public View getTopLevelView() {
+        return mView;
+    }
+
+    public ImageShow getImageShow() {
+        return mImageShow;
+    }
+
+    public void setImageLoader(ImageLoader imageLoader) {
+        mImageShow.setImageLoader(imageLoader);
+    }
+
+    public void setVisibility(int visible) {
+        mView.setVisibility(visible);
+    }
+
+    /**
+     * called after the filter is set and the select is called
+     */
+    public void reflectCurrentFilter() {
+    }
+
+    public boolean useUtilityPanel() {
+        if (mImageShow != null) {
+            return mImageShow.useUtilityPanel();
+        }
+        return false;
+    }
+
+    public void openUtilityPanel(LinearLayout mAccessoryViewList) {
+        if (mImageShow != null) {
+            mImageShow.openUtilityPanel(mAccessoryViewList);
+        }
+    }
+
+}
diff --git a/src/com/android/gallery3d/filtershow/editors/EditorCurves.java b/src/com/android/gallery3d/filtershow/editors/EditorCurves.java
new file mode 100644
index 000000000..a3360483a
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/editors/EditorCurves.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.gallery3d.filtershow.editors;
+
+import android.content.Context;
+import android.widget.FrameLayout;
+
+import com.android.gallery3d.R;
+import com.android.gallery3d.filtershow.ui.ImageCurves;
+
+public class EditorCurves extends Editor {
+    public static final int ID = R.id.imageCurves;
+
+    public EditorCurves() {
+        super(ID);
+    }
+
+    @Override
+    public void createEditor(Context context, FrameLayout frameLayout) {
+        super.createEditor(context, frameLayout);
+        mView = mImageShow = new ImageCurves(context);
+    }
+}
diff --git a/src/com/android/gallery3d/filtershow/editors/EditorZoom.java b/src/com/android/gallery3d/filtershow/editors/EditorZoom.java
new file mode 100644
index 000000000..b8642457d
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/editors/EditorZoom.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.gallery3d.filtershow.editors;
+
+import android.content.Context;
+import android.widget.FrameLayout;
+
+import com.android.gallery3d.R;
+import com.android.gallery3d.filtershow.imageshow.ImageZoom;
+
+public class EditorZoom extends Editor {
+    public static final int ID = R.id.imageZoom;
+
+    public EditorZoom() {
+        super(ID);
+    }
+
+    @Override
+    public void createEditor(Context context, FrameLayout frameLayout) {
+        super.createEditor(context, frameLayout);
+        mView = mImageShow = new ImageZoom(context);
+    }
+}