diff options
Diffstat (limited to 'src/com/android/gallery3d/filtershow/imageshow/ImageCurves.java')
| -rw-r--r-- | src/com/android/gallery3d/filtershow/imageshow/ImageCurves.java | 445 |
1 files changed, 0 insertions, 445 deletions
diff --git a/src/com/android/gallery3d/filtershow/imageshow/ImageCurves.java b/src/com/android/gallery3d/filtershow/imageshow/ImageCurves.java deleted file mode 100644 index 82c4b2fc7..000000000 --- a/src/com/android/gallery3d/filtershow/imageshow/ImageCurves.java +++ /dev/null @@ -1,445 +0,0 @@ -/* - * 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.imageshow; - -import android.content.Context; -import android.graphics.Bitmap; -import android.graphics.Canvas; -import android.graphics.Color; -import android.graphics.Paint; -import android.graphics.Path; -import android.graphics.PorterDuff; -import android.graphics.PorterDuffXfermode; -import android.os.AsyncTask; -import android.util.AttributeSet; -import android.view.MenuItem; -import android.view.MotionEvent; -import android.view.View; -import android.widget.Button; -import android.widget.LinearLayout; -import android.widget.PopupMenu; - -import com.android.gallery3d.R; -import com.android.gallery3d.filtershow.editors.Editor; -import com.android.gallery3d.filtershow.editors.EditorCurves; -import com.android.gallery3d.filtershow.filters.FilterCurvesRepresentation; -import com.android.gallery3d.filtershow.filters.FiltersManager; -import com.android.gallery3d.filtershow.filters.ImageFilterCurves; -import com.android.gallery3d.filtershow.pipeline.ImagePreset; - -import java.util.HashMap; - -public class ImageCurves extends ImageShow { - - private static final String LOGTAG = "ImageCurves"; - Paint gPaint = new Paint(); - Path gPathSpline = new Path(); - HashMap<Integer, String> mIdStrLut; - - private int mCurrentCurveIndex = Spline.RGB; - private boolean mDidAddPoint = false; - private boolean mDidDelete = false; - private ControlPoint mCurrentControlPoint = null; - private int mCurrentPick = -1; - private ImagePreset mLastPreset = null; - int[] redHistogram = new int[256]; - int[] greenHistogram = new int[256]; - int[] blueHistogram = new int[256]; - Path gHistoPath = new Path(); - - boolean mDoingTouchMove = false; - private EditorCurves mEditorCurves; - private FilterCurvesRepresentation mFilterCurvesRepresentation; - - public ImageCurves(Context context) { - super(context); - setLayerType(LAYER_TYPE_SOFTWARE, gPaint); - resetCurve(); - } - - public ImageCurves(Context context, AttributeSet attrs) { - super(context, attrs); - setLayerType(LAYER_TYPE_SOFTWARE, gPaint); - resetCurve(); - } - - @Override - protected boolean enableComparison() { - return false; - } - - @Override - public boolean useUtilityPanel() { - return true; - } - - private void showPopupMenu(LinearLayout accessoryViewList) { - final Button button = (Button) accessoryViewList.findViewById( - R.id.applyEffect); - if (button == null) { - return; - } - if (mIdStrLut == null){ - mIdStrLut = new HashMap<Integer, String>(); - mIdStrLut.put(R.id.curve_menu_rgb, - getContext().getString(R.string.curves_channel_rgb)); - mIdStrLut.put(R.id.curve_menu_red, - getContext().getString(R.string.curves_channel_red)); - mIdStrLut.put(R.id.curve_menu_green, - getContext().getString(R.string.curves_channel_green)); - mIdStrLut.put(R.id.curve_menu_blue, - getContext().getString(R.string.curves_channel_blue)); - } - PopupMenu popupMenu = new PopupMenu(getActivity(), button); - popupMenu.getMenuInflater().inflate(R.menu.filtershow_menu_curves, popupMenu.getMenu()); - popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() { - @Override - public boolean onMenuItemClick(MenuItem item) { - setChannel(item.getItemId()); - button.setText(mIdStrLut.get(item.getItemId())); - return true; - } - }); - Editor.hackFixStrings(popupMenu.getMenu()); - popupMenu.show(); - } - - @Override - public void openUtilityPanel(final LinearLayout accessoryViewList) { - Context context = accessoryViewList.getContext(); - Button view = (Button) accessoryViewList.findViewById(R.id.applyEffect); - view.setText(context.getString(R.string.curves_channel_rgb)); - view.setVisibility(View.VISIBLE); - - view.setOnClickListener(new OnClickListener() { - @Override - public void onClick(View arg0) { - showPopupMenu(accessoryViewList); - } - }); - - if (view != null) { - view.setVisibility(View.VISIBLE); - } - } - - public void nextChannel() { - mCurrentCurveIndex = ((mCurrentCurveIndex + 1) % 4); - invalidate(); - } - - private ImageFilterCurves curves() { - String filterName = getFilterName(); - ImagePreset p = getImagePreset(); - if (p != null) { - return (ImageFilterCurves) FiltersManager.getManager().getFilter(ImageFilterCurves.class); - } - return null; - } - - private Spline getSpline(int index) { - return mFilterCurvesRepresentation.getSpline(index); - } - - @Override - public void resetParameter() { - super.resetParameter(); - resetCurve(); - mLastPreset = null; - invalidate(); - } - - public void resetCurve() { - if (mFilterCurvesRepresentation != null) { - mFilterCurvesRepresentation.reset(); - updateCachedImage(); - } - } - - @Override - public void onDraw(Canvas canvas) { - super.onDraw(canvas); - if (mFilterCurvesRepresentation == null) { - return; - } - - gPaint.setAntiAlias(true); - - if (getImagePreset() != mLastPreset && getFilteredImage() != null) { - new ComputeHistogramTask().execute(getFilteredImage()); - mLastPreset = getImagePreset(); - } - - if (curves() == null) { - return; - } - - if (mCurrentCurveIndex == Spline.RGB || mCurrentCurveIndex == Spline.RED) { - drawHistogram(canvas, redHistogram, Color.RED, PorterDuff.Mode.SCREEN); - } - if (mCurrentCurveIndex == Spline.RGB || mCurrentCurveIndex == Spline.GREEN) { - drawHistogram(canvas, greenHistogram, Color.GREEN, PorterDuff.Mode.SCREEN); - } - if (mCurrentCurveIndex == Spline.RGB || mCurrentCurveIndex == Spline.BLUE) { - drawHistogram(canvas, blueHistogram, Color.BLUE, PorterDuff.Mode.SCREEN); - } - // We only display the other channels curves when showing the RGB curve - if (mCurrentCurveIndex == Spline.RGB) { - for (int i = 0; i < 4; i++) { - Spline spline = getSpline(i); - if (i != mCurrentCurveIndex && !spline.isOriginal()) { - // And we only display a curve if it has more than two - // points - spline.draw(canvas, Spline.colorForCurve(i), getWidth(), - getHeight(), false, mDoingTouchMove); - } - } - } - // ...but we always display the current curve. - getSpline(mCurrentCurveIndex) - .draw(canvas, Spline.colorForCurve(mCurrentCurveIndex), getWidth(), getHeight(), - true, mDoingTouchMove); - - } - - private int pickControlPoint(float x, float y) { - int pick = 0; - Spline spline = getSpline(mCurrentCurveIndex); - float px = spline.getPoint(0).x; - float py = spline.getPoint(0).y; - double delta = Math.sqrt((px - x) * (px - x) + (py - y) * (py - y)); - for (int i = 1; i < spline.getNbPoints(); i++) { - px = spline.getPoint(i).x; - py = spline.getPoint(i).y; - double currentDelta = Math.sqrt((px - x) * (px - x) + (py - y) - * (py - y)); - if (currentDelta < delta) { - delta = currentDelta; - pick = i; - } - } - - if (!mDidAddPoint && (delta * getWidth() > 100) - && (spline.getNbPoints() < 10)) { - return -1; - } - - return pick; - } - - private String getFilterName() { - return "Curves"; - } - - @Override - public synchronized boolean onTouchEvent(MotionEvent e) { - if (e.getPointerCount() != 1) { - return true; - } - - if (didFinishScalingOperation()) { - return true; - } - - float margin = Spline.curveHandleSize() / 2; - float posX = e.getX(); - if (posX < margin) { - posX = margin; - } - float posY = e.getY(); - if (posY < margin) { - posY = margin; - } - if (posX > getWidth() - margin) { - posX = getWidth() - margin; - } - if (posY > getHeight() - margin) { - posY = getHeight() - margin; - } - posX = (posX - margin) / (getWidth() - 2 * margin); - posY = (posY - margin) / (getHeight() - 2 * margin); - - if (e.getActionMasked() == MotionEvent.ACTION_UP) { - mCurrentControlPoint = null; - mCurrentPick = -1; - updateCachedImage(); - mDidAddPoint = false; - if (mDidDelete) { - mDidDelete = false; - } - mDoingTouchMove = false; - return true; - } - - if (mDidDelete) { - return true; - } - - if (curves() == null) { - return true; - } - - if (e.getActionMasked() == MotionEvent.ACTION_MOVE) { - mDoingTouchMove = true; - Spline spline = getSpline(mCurrentCurveIndex); - int pick = mCurrentPick; - if (mCurrentControlPoint == null) { - pick = pickControlPoint(posX, posY); - if (pick == -1) { - mCurrentControlPoint = new ControlPoint(posX, posY); - pick = spline.addPoint(mCurrentControlPoint); - mDidAddPoint = true; - } else { - mCurrentControlPoint = spline.getPoint(pick); - } - mCurrentPick = pick; - } - - if (spline.isPointContained(posX, pick)) { - spline.movePoint(pick, posX, posY); - } else if (pick != -1 && spline.getNbPoints() > 2) { - spline.deletePoint(pick); - mDidDelete = true; - } - updateCachedImage(); - invalidate(); - } - return true; - } - - public synchronized void updateCachedImage() { - if (getImagePreset() != null) { - resetImageCaches(this); - if (mEditorCurves != null) { - mEditorCurves.commitLocalRepresentation(); - } - invalidate(); - } - } - - class ComputeHistogramTask extends AsyncTask<Bitmap, Void, int[]> { - @Override - protected int[] doInBackground(Bitmap... params) { - int[] histo = new int[256 * 3]; - Bitmap bitmap = params[0]; - int w = bitmap.getWidth(); - int h = bitmap.getHeight(); - int[] pixels = new int[w * h]; - bitmap.getPixels(pixels, 0, w, 0, 0, w, h); - for (int i = 0; i < w; i++) { - for (int j = 0; j < h; j++) { - int index = j * w + i; - int r = Color.red(pixels[index]); - int g = Color.green(pixels[index]); - int b = Color.blue(pixels[index]); - histo[r]++; - histo[256 + g]++; - histo[512 + b]++; - } - } - return histo; - } - - @Override - protected void onPostExecute(int[] result) { - System.arraycopy(result, 0, redHistogram, 0, 256); - System.arraycopy(result, 256, greenHistogram, 0, 256); - System.arraycopy(result, 512, blueHistogram, 0, 256); - invalidate(); - } - } - - private void drawHistogram(Canvas canvas, int[] histogram, int color, PorterDuff.Mode mode) { - int max = 0; - for (int i = 0; i < histogram.length; i++) { - if (histogram[i] > max) { - max = histogram[i]; - } - } - float w = getWidth() - Spline.curveHandleSize(); - float h = getHeight() - Spline.curveHandleSize() / 2.0f; - float dx = Spline.curveHandleSize() / 2.0f; - float wl = w / histogram.length; - float wh = (0.3f * h) / max; - Paint paint = new Paint(); - paint.setARGB(100, 255, 255, 255); - paint.setStrokeWidth((int) Math.ceil(wl)); - - Paint paint2 = new Paint(); - paint2.setColor(color); - paint2.setStrokeWidth(6); - paint2.setXfermode(new PorterDuffXfermode(mode)); - gHistoPath.reset(); - gHistoPath.moveTo(dx, h); - boolean firstPointEncountered = false; - float prev = 0; - float last = 0; - for (int i = 0; i < histogram.length; i++) { - float x = i * wl + dx; - float l = histogram[i] * wh; - if (l != 0) { - float v = h - (l + prev) / 2.0f; - if (!firstPointEncountered) { - gHistoPath.lineTo(x, h); - firstPointEncountered = true; - } - gHistoPath.lineTo(x, v); - prev = l; - last = x; - } - } - gHistoPath.lineTo(last, h); - gHistoPath.lineTo(w, h); - gHistoPath.close(); - canvas.drawPath(gHistoPath, paint2); - paint2.setStrokeWidth(2); - paint2.setStyle(Paint.Style.STROKE); - paint2.setARGB(255, 200, 200, 200); - canvas.drawPath(gHistoPath, paint2); - } - - public void setChannel(int itemId) { - switch (itemId) { - case R.id.curve_menu_rgb: { - mCurrentCurveIndex = Spline.RGB; - break; - } - case R.id.curve_menu_red: { - mCurrentCurveIndex = Spline.RED; - break; - } - case R.id.curve_menu_green: { - mCurrentCurveIndex = Spline.GREEN; - break; - } - case R.id.curve_menu_blue: { - mCurrentCurveIndex = Spline.BLUE; - break; - } - } - mEditorCurves.commitLocalRepresentation(); - invalidate(); - } - - public void setEditor(EditorCurves editorCurves) { - mEditorCurves = editorCurves; - } - - public void setFilterDrawRepresentation(FilterCurvesRepresentation drawRep) { - mFilterCurvesRepresentation = drawRep; - } -} |