OmniLib: Introduce OmniRom SDK
* omnilib-res app will be installed to system/frameworks for the futur internal ressources add-on
* OmniLib java_library will be installed to system/frameworks for the futur internal java/aidl add-on
* The OmniPreference android_library need to be moved outside system/frameworks because of some nested dependency breakage
Change-Id: I2b9a7bc7f4aa72052ae6600933eb114d2a481b35
omnilib-res: Add allow-reserved-package-id
Thx to the LineageOS team
https://github.com/LineageOS/android_lineage-sdk/blob/lineage-20.0/Android.bp#L44-L49
Change-Id: I07ba56685981a8735bdef5ea75528ec82dd68318
diff --git a/omnipreference/java/omnirom/ui/AlphaPatternDrawable.java b/omnipreference/java/omnirom/ui/AlphaPatternDrawable.java
new file mode 100644
index 0000000..d91998d
--- /dev/null
+++ b/omnipreference/java/omnirom/ui/AlphaPatternDrawable.java
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2010 Daniel Nilsson
+ * Copyright (C) 2012 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 omnirom.ui;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.Paint;
+import android.graphics.Rect;
+import android.graphics.Bitmap.Config;
+import android.graphics.drawable.Drawable;
+
+/**
+ * This drawable that draws a simple white and gray chess board pattern. It's
+ * pattern you will often see as a background behind a partly transparent image
+ * in many applications.
+ *
+ * @author Daniel Nilsson
+ */
+public class AlphaPatternDrawable extends Drawable {
+
+ private int mRectangleSize = 10;
+
+ private Paint mPaint = new Paint();
+ private Paint mPaintWhite = new Paint();
+ private Paint mPaintGray = new Paint();
+
+ private int numRectanglesHorizontal;
+ private int numRectanglesVertical;
+
+ /**
+ * Bitmap in which the pattern will be cached.
+ */
+ private Bitmap mBitmap;
+
+ public AlphaPatternDrawable(int rectangleSize) {
+ mRectangleSize = rectangleSize;
+ mPaintWhite.setColor(0xffffffff);
+ mPaintGray.setColor(0xffcbcbcb);
+ }
+
+ @Override
+ public void draw(Canvas canvas) {
+ if (mBitmap != null) {
+ canvas.drawBitmap(mBitmap, null, getBounds(), mPaint);
+ }
+ }
+
+ @Override
+ public int getOpacity() {
+ return 0;
+ }
+
+ @Override
+ public void setAlpha(int alpha) {
+ throw new UnsupportedOperationException("Alpha is not supported by this drawwable.");
+ }
+
+ @Override
+ public void setColorFilter(ColorFilter cf) {
+ throw new UnsupportedOperationException("ColorFilter is not supported by this drawwable.");
+ }
+
+ @Override
+ protected void onBoundsChange(Rect bounds) {
+ super.onBoundsChange(bounds);
+
+ int height = bounds.height();
+ int width = bounds.width();
+
+ numRectanglesHorizontal = (int) Math.ceil((width / mRectangleSize));
+ numRectanglesVertical = (int) Math.ceil(height / mRectangleSize);
+
+ generatePatternBitmap();
+ }
+
+ /**
+ * This will generate a bitmap with the pattern as big as the rectangle we
+ * were allow to draw on. We do this to cache the bitmap so we don't need
+ * to recreate it each time draw() is called since it takes a few
+ * milliseconds.
+ */
+ private void generatePatternBitmap() {
+
+ if (getBounds().width() <= 0 || getBounds().height() <= 0) {
+ return;
+ }
+
+ mBitmap = Bitmap.createBitmap(getBounds().width(), getBounds().height(), Config.ARGB_8888);
+ Canvas canvas = new Canvas(mBitmap);
+
+ Rect r = new Rect();
+ boolean verticalStartWhite = true;
+ for (int i = 0; i <= numRectanglesVertical; i++) {
+ boolean isWhite = verticalStartWhite;
+ for (int j = 0; j <= numRectanglesHorizontal; j++) {
+ r.top = i * mRectangleSize;
+ r.left = j * mRectangleSize;
+ r.bottom = r.top + mRectangleSize;
+ r.right = r.left + mRectangleSize;
+
+ canvas.drawRect(r, isWhite ? mPaintWhite : mPaintGray);
+
+ isWhite = !isWhite;
+ }
+
+ verticalStartWhite = !verticalStartWhite;
+ }
+ }
+}
diff --git a/omnipreference/java/omnirom/ui/ColorPanelView.java b/omnipreference/java/omnirom/ui/ColorPanelView.java
new file mode 100644
index 0000000..e50ce86
--- /dev/null
+++ b/omnipreference/java/omnirom/ui/ColorPanelView.java
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2010 Daniel Nilsson
+ * Copyright (C) 2012 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 omnirom.ui;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.RectF;
+import android.util.AttributeSet;
+import android.view.View;
+
+/**
+ * This class draws a panel which which will be filled with a color which can be
+ * set. It can be used to show the currently selected color which you will get
+ * from the {@link ColorPickerView}.
+ *
+ * @author Daniel Nilsson
+ */
+public class ColorPanelView extends View {
+
+ /**
+ * The width in pixels of the border surrounding the color panel.
+ */
+ private final static float BORDER_WIDTH_PX = 1;
+
+ private static float mDensity = 1f;
+
+ private int mBorderColor = 0xff6E6E6E;
+ private int mColor = 0xff000000;
+
+ private Paint mBorderPaint;
+ private Paint mColorPaint;
+
+ private RectF mDrawingRect;
+ private RectF mColorRect;
+
+ private AlphaPatternDrawable mAlphaPattern;
+
+ public ColorPanelView(Context context) {
+ this(context, null);
+ }
+
+ public ColorPanelView(Context context, AttributeSet attrs) {
+ this(context, attrs, 0);
+ }
+
+ public ColorPanelView(Context context, AttributeSet attrs, int defStyle) {
+ super(context, attrs, defStyle);
+
+ init();
+ }
+
+ private void init() {
+ mBorderPaint = new Paint();
+ mColorPaint = new Paint();
+ mDensity = getContext().getResources().getDisplayMetrics().density;
+ }
+
+ @Override
+ protected void onDraw(Canvas canvas) {
+
+ final RectF rect = mColorRect;
+
+ if (BORDER_WIDTH_PX > 0) {
+ mBorderPaint.setColor(mBorderColor);
+ canvas.drawRect(mDrawingRect, mBorderPaint);
+ }
+
+ if (mAlphaPattern != null) {
+ mAlphaPattern.draw(canvas);
+ }
+
+ mColorPaint.setColor(mColor);
+
+ canvas.drawRect(rect, mColorPaint);
+ }
+
+ @Override
+ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+
+ int width = MeasureSpec.getSize(widthMeasureSpec);
+ int height = MeasureSpec.getSize(heightMeasureSpec);
+
+ setMeasuredDimension(width, height);
+ }
+
+ @Override
+ protected void onSizeChanged(int w, int h, int oldw, int oldh) {
+ super.onSizeChanged(w, h, oldw, oldh);
+
+ mDrawingRect = new RectF();
+ mDrawingRect.left = getPaddingLeft();
+ mDrawingRect.right = w - getPaddingRight();
+ mDrawingRect.top = getPaddingTop();
+ mDrawingRect.bottom = h - getPaddingBottom();
+
+ setUpColorRect();
+
+ }
+
+ private void setUpColorRect() {
+ final RectF dRect = mDrawingRect;
+
+ float left = dRect.left + BORDER_WIDTH_PX;
+ float top = dRect.top + BORDER_WIDTH_PX;
+ float bottom = dRect.bottom - BORDER_WIDTH_PX;
+ float right = dRect.right - BORDER_WIDTH_PX;
+
+ mColorRect = new RectF(left, top, right, bottom);
+
+ mAlphaPattern = new AlphaPatternDrawable((int) (5 * mDensity));
+
+ mAlphaPattern.setBounds(Math.round(mColorRect.left),
+ Math.round(mColorRect.top),
+ Math.round(mColorRect.right),
+ Math.round(mColorRect.bottom));
+
+ }
+
+ /**
+ * Set the color that should be shown by this view.
+ *
+ * @param color
+ */
+ public void setColor(int color) {
+ mColor = color;
+ invalidate();
+ }
+
+ /**
+ * Get the color currently show by this view.
+ *
+ * @return
+ */
+ public int getColor() {
+ return mColor;
+ }
+
+ /**
+ * Set the color of the border surrounding the panel.
+ *
+ * @param color
+ */
+ public void setBorderColor(int color) {
+ mBorderColor = color;
+ invalidate();
+ }
+
+ /**
+ * Get the color of the border surrounding the panel.
+ */
+ public int getBorderColor() {
+ return mBorderColor;
+ }
+
+}
diff --git a/omnipreference/java/omnirom/ui/ColorPickerView.java b/omnipreference/java/omnirom/ui/ColorPickerView.java
new file mode 100644
index 0000000..e703181
--- /dev/null
+++ b/omnipreference/java/omnirom/ui/ColorPickerView.java
@@ -0,0 +1,841 @@
+/*
+ * Copyright (C) 2010 Daniel Nilsson
+ * Copyright (C) 2012 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 omnirom.ui;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.ComposeShader;
+import android.graphics.LinearGradient;
+import android.graphics.Paint;
+import android.graphics.Point;
+import android.graphics.PorterDuff.Mode;
+import android.graphics.RectF;
+import android.graphics.Shader;
+import android.graphics.Paint.Align;
+import android.graphics.Paint.Style;
+import android.graphics.Shader.TileMode;
+import android.os.Build;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+
+/**
+ * Displays a color picker to the user and allow them to select a color. A
+ * slider for the alpha channel is also available. Enable it by setting
+ * setAlphaSliderVisible(boolean) to true.
+ *
+ * @author Daniel Nilsson
+ */
+public class ColorPickerView extends View {
+
+ public interface OnColorChangedListener {
+ public void onColorChanged(int color);
+ }
+
+ private final static int PANEL_SAT_VAL = 0;
+ private final static int PANEL_HUE = 1;
+ private final static int PANEL_ALPHA = 2;
+
+ /**
+ * The width in pixels of the border surrounding all color panels.
+ */
+ private final static float BORDER_WIDTH_PX = 1;
+
+ /**
+ * The width in dp of the hue panel.
+ */
+ private float HUE_PANEL_WIDTH = 30f;
+ /**
+ * The height in dp of the alpha panel
+ */
+ private float ALPHA_PANEL_HEIGHT = 20f;
+ /**
+ * The distance in dp between the different color panels.
+ */
+ private float PANEL_SPACING = 10f;
+ /**
+ * The radius in dp of the color palette tracker circle.
+ */
+ private float PALETTE_CIRCLE_TRACKER_RADIUS = 5f;
+ /**
+ * The dp which the tracker of the hue or alpha panel will extend outside of
+ * its bounds.
+ */
+ private float RECTANGLE_TRACKER_OFFSET = 2f;
+
+ private static float mDensity = 1f;
+
+ private OnColorChangedListener mListener;
+
+ private Paint mSatValPaint;
+ private Paint mSatValTrackerPaint;
+
+ private Paint mHuePaint;
+ private Paint mHueTrackerPaint;
+
+ private Paint mAlphaPaint;
+ private Paint mAlphaTextPaint;
+
+ private Paint mBorderPaint;
+
+ private Shader mValShader;
+ private Shader mSatShader;
+ private Shader mHueShader;
+ private Shader mAlphaShader;
+
+ private int mAlpha = 0xff;
+ private float mHue = 360f;
+ private float mSat = 0f;
+ private float mVal = 0f;
+
+ private String mAlphaSliderText = "Alpha";
+ private int mSliderTrackerColor = 0xff1c1c1c;
+ private int mBorderColor = 0xff6E6E6E;
+ private boolean mShowAlphaPanel = false;
+
+ /*
+ * To remember which panel that has the "focus" when processing hardware
+ * button data.
+ */
+ private int mLastTouchedPanel = PANEL_SAT_VAL;
+
+ /**
+ * Offset from the edge we must have or else the finger tracker will get
+ * clipped when it is drawn outside of the view.
+ */
+ private float mDrawingOffset;
+
+ /*
+ * Distance form the edges of the view of where we are allowed to draw.
+ */
+ private RectF mDrawingRect;
+
+ private RectF mSatValRect;
+ private RectF mHueRect;
+ private RectF mAlphaRect;
+
+ private AlphaPatternDrawable mAlphaPattern;
+
+ private Point mStartTouchPoint = null;
+
+ public ColorPickerView(Context context) {
+ this(context, null);
+ }
+
+ public ColorPickerView(Context context, AttributeSet attrs) {
+ this(context, attrs, 0);
+ }
+
+ public ColorPickerView(Context context, AttributeSet attrs, int defStyle) {
+ super(context, attrs, defStyle);
+ init();
+ }
+
+ private void init() {
+ mDensity = getContext().getResources().getDisplayMetrics().density;
+ PALETTE_CIRCLE_TRACKER_RADIUS *= mDensity;
+ RECTANGLE_TRACKER_OFFSET *= mDensity;
+ HUE_PANEL_WIDTH *= mDensity;
+ ALPHA_PANEL_HEIGHT *= mDensity;
+ PANEL_SPACING = PANEL_SPACING * mDensity;
+
+ mDrawingOffset = calculateRequiredOffset();
+ initPaintTools();
+
+ // Needed for receiving track ball motion events.
+ setFocusableInTouchMode(true);
+ setFocusable(true);
+ setClickable(true);
+ }
+
+ private void initPaintTools() {
+ mSatValPaint = new Paint();
+ mSatValTrackerPaint = new Paint();
+ mHuePaint = new Paint();
+ mHueTrackerPaint = new Paint();
+ mAlphaPaint = new Paint();
+ mAlphaTextPaint = new Paint();
+ mBorderPaint = new Paint();
+
+ mSatValTrackerPaint.setStyle(Style.STROKE);
+ mSatValTrackerPaint.setStrokeWidth(2f * mDensity);
+ mSatValTrackerPaint.setAntiAlias(true);
+
+ mHueTrackerPaint.setColor(mSliderTrackerColor);
+ mHueTrackerPaint.setStyle(Style.STROKE);
+ mHueTrackerPaint.setStrokeWidth(2f * mDensity);
+ mHueTrackerPaint.setAntiAlias(true);
+
+ mAlphaTextPaint.setColor(0xff1c1c1c);
+ mAlphaTextPaint.setTextSize(14f * mDensity);
+ mAlphaTextPaint.setAntiAlias(true);
+ mAlphaTextPaint.setTextAlign(Align.CENTER);
+ mAlphaTextPaint.setFakeBoldText(true);
+ }
+
+ private float calculateRequiredOffset() {
+ float offset = Math.max(PALETTE_CIRCLE_TRACKER_RADIUS, RECTANGLE_TRACKER_OFFSET);
+ offset = Math.max(offset, BORDER_WIDTH_PX * mDensity);
+
+ return offset * 1.5f;
+ }
+
+ private int[] buildHueColorArray() {
+ int[] hue = new int[361];
+
+ int count = 0;
+ for (int i = hue.length - 1; i >= 0; i--, count++) {
+ hue[count] = Color.HSVToColor(new float[] {
+ i, 1f, 1f
+ });
+ }
+ return hue;
+ }
+
+ @Override
+ protected void onDraw(Canvas canvas) {
+ if (mDrawingRect.width() <= 0 || mDrawingRect.height() <= 0) {
+ return;
+ }
+ drawSatValPanel(canvas);
+ drawHuePanel(canvas);
+ drawAlphaPanel(canvas);
+ }
+
+ private void drawSatValPanel(Canvas canvas) {
+ final RectF rect = mSatValRect;
+ int rgb = Color.HSVToColor(new float[] {
+ mHue, 1f, 1f
+ });
+
+ if (BORDER_WIDTH_PX > 0) {
+ mBorderPaint.setColor(mBorderColor);
+ canvas.drawRect(mDrawingRect.left, mDrawingRect.top, rect.right + BORDER_WIDTH_PX,
+ rect.bottom + BORDER_WIDTH_PX, mBorderPaint);
+ }
+
+ // On Honeycomb+ we need to use software rendering to create the shader properly
+ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
+ setLayerType(View.LAYER_TYPE_SOFTWARE, null);
+ }
+
+ // Get the overlaying gradients ready and create the ComposeShader
+ if (mValShader == null) {
+ mValShader = new LinearGradient(rect.left, rect.top, rect.left, rect.bottom,
+ 0xffffffff, 0xff000000, TileMode.CLAMP);
+ }
+ mSatShader = new LinearGradient(rect.left, rect.top, rect.right, rect.top,
+ 0xffffffff, rgb, TileMode.CLAMP);
+ ComposeShader mShader = new ComposeShader(mValShader, mSatShader, Mode.MULTIPLY);
+ mSatValPaint.setShader(mShader);
+ canvas.drawRect(rect, mSatValPaint);
+
+ Point p = satValToPoint(mSat, mVal);
+ mSatValTrackerPaint.setColor(0xff000000);
+ canvas.drawCircle(p.x, p.y, PALETTE_CIRCLE_TRACKER_RADIUS - 1f * mDensity,
+ mSatValTrackerPaint);
+
+ mSatValTrackerPaint.setColor(0xffdddddd);
+ canvas.drawCircle(p.x, p.y, PALETTE_CIRCLE_TRACKER_RADIUS, mSatValTrackerPaint);
+ }
+
+ private void drawHuePanel(Canvas canvas) {
+ final RectF rect = mHueRect;
+
+ if (BORDER_WIDTH_PX > 0) {
+ mBorderPaint.setColor(mBorderColor);
+ canvas.drawRect(rect.left - BORDER_WIDTH_PX,
+ rect.top - BORDER_WIDTH_PX,
+ rect.right + BORDER_WIDTH_PX,
+ rect.bottom + BORDER_WIDTH_PX,
+ mBorderPaint);
+ }
+
+ if (mHueShader == null) {
+ mHueShader = new LinearGradient(rect.left, rect.top, rect.left, rect.bottom,
+ buildHueColorArray(), null, TileMode.CLAMP);
+ mHuePaint.setShader(mHueShader);
+ }
+
+ canvas.drawRect(rect, mHuePaint);
+
+ float rectHeight = 4 * mDensity / 2;
+
+ Point p = hueToPoint(mHue);
+
+ RectF r = new RectF();
+ r.left = rect.left - RECTANGLE_TRACKER_OFFSET;
+ r.right = rect.right + RECTANGLE_TRACKER_OFFSET;
+ r.top = p.y - rectHeight;
+ r.bottom = p.y + rectHeight;
+
+ canvas.drawRoundRect(r, 2, 2, mHueTrackerPaint);
+
+ }
+
+ private void drawAlphaPanel(Canvas canvas) {
+ if (!mShowAlphaPanel || mAlphaRect == null || mAlphaPattern == null) {
+ return;
+ }
+
+ final RectF rect = mAlphaRect;
+
+ if (BORDER_WIDTH_PX > 0) {
+ mBorderPaint.setColor(mBorderColor);
+ canvas.drawRect(rect.left - BORDER_WIDTH_PX,
+ rect.top - BORDER_WIDTH_PX,
+ rect.right + BORDER_WIDTH_PX,
+ rect.bottom + BORDER_WIDTH_PX,
+ mBorderPaint);
+ }
+
+ mAlphaPattern.draw(canvas);
+
+ float[] hsv = new float[] {
+ mHue, mSat, mVal
+ };
+ int color = Color.HSVToColor(hsv);
+ int acolor = Color.HSVToColor(0, hsv);
+
+ mAlphaShader = new LinearGradient(rect.left, rect.top, rect.right, rect.top,
+ color, acolor, TileMode.CLAMP);
+
+ mAlphaPaint.setShader(mAlphaShader);
+
+ canvas.drawRect(rect, mAlphaPaint);
+
+ if (mAlphaSliderText != null && mAlphaSliderText != "") {
+ canvas.drawText(mAlphaSliderText, rect.centerX(), rect.centerY() + 4 * mDensity,
+ mAlphaTextPaint);
+ }
+
+ float rectWidth = 4 * mDensity / 2;
+ Point p = alphaToPoint(mAlpha);
+
+ RectF r = new RectF();
+ r.left = p.x - rectWidth;
+ r.right = p.x + rectWidth;
+ r.top = rect.top - RECTANGLE_TRACKER_OFFSET;
+ r.bottom = rect.bottom + RECTANGLE_TRACKER_OFFSET;
+
+ canvas.drawRoundRect(r, 2, 2, mHueTrackerPaint);
+ }
+
+ private Point hueToPoint(float hue) {
+ final RectF rect = mHueRect;
+ final float height = rect.height();
+
+ Point p = new Point();
+ p.y = (int) (height - (hue * height / 360f) + rect.top);
+ p.x = (int) rect.left;
+ return p;
+ }
+
+ private Point satValToPoint(float sat, float val) {
+
+ final RectF rect = mSatValRect;
+ final float height = rect.height();
+ final float width = rect.width();
+
+ Point p = new Point();
+
+ p.x = (int) (sat * width + rect.left);
+ p.y = (int) ((1f - val) * height + rect.top);
+
+ return p;
+ }
+
+ private Point alphaToPoint(int alpha) {
+ final RectF rect = mAlphaRect;
+ final float width = rect.width();
+
+ Point p = new Point();
+ p.x = (int) (width - (alpha * width / 0xff) + rect.left);
+ p.y = (int) rect.top;
+ return p;
+ }
+
+ private float[] pointToSatVal(float x, float y) {
+ final RectF rect = mSatValRect;
+ float[] result = new float[2];
+ float width = rect.width();
+ float height = rect.height();
+
+ if (x < rect.left) {
+ x = 0f;
+ } else if (x > rect.right) {
+ x = width;
+ } else {
+ x = x - rect.left;
+ }
+
+ if (y < rect.top) {
+ y = 0f;
+ } else if (y > rect.bottom) {
+ y = height;
+ } else {
+ y = y - rect.top;
+ }
+
+ result[0] = 1.f / width * x;
+ result[1] = 1.f - (1.f / height * y);
+ return result;
+ }
+
+ private float pointToHue(float y) {
+ final RectF rect = mHueRect;
+ float height = rect.height();
+
+ if (y < rect.top) {
+ y = 0f;
+ } else if (y > rect.bottom) {
+ y = height;
+ } else {
+ y = y - rect.top;
+ }
+ return 360f - (y * 360f / height);
+ }
+
+ private int pointToAlpha(int x) {
+ final RectF rect = mAlphaRect;
+ final int width = (int) rect.width();
+
+ if (x < rect.left) {
+ x = 0;
+ } else if (x > rect.right) {
+ x = width;
+ } else {
+ x = x - (int) rect.left;
+ }
+ return 0xff - (x * 0xff / width);
+ }
+
+ @Override
+ public boolean onTrackballEvent(MotionEvent event) {
+ float x = event.getX();
+ float y = event.getY();
+ boolean update = false;
+
+ if (event.getAction() == MotionEvent.ACTION_MOVE) {
+ switch (mLastTouchedPanel) {
+ case PANEL_SAT_VAL:
+ float sat,
+ val;
+ sat = mSat + x / 50f;
+ val = mVal - y / 50f;
+ if (sat < 0f) {
+ sat = 0f;
+ } else if (sat > 1f) {
+ sat = 1f;
+ }
+
+ if (val < 0f) {
+ val = 0f;
+ } else if (val > 1f) {
+ val = 1f;
+ }
+ mSat = sat;
+ mVal = val;
+ update = true;
+ break;
+ case PANEL_HUE:
+ float hue = mHue - y * 10f;
+ if (hue < 0f) {
+ hue = 0f;
+ } else if (hue > 360f) {
+ hue = 360f;
+ }
+ mHue = hue;
+ update = true;
+ break;
+ case PANEL_ALPHA:
+ if (!mShowAlphaPanel || mAlphaRect == null) {
+ update = false;
+ } else {
+ int alpha = (int) (mAlpha - x * 10);
+ if (alpha < 0) {
+ alpha = 0;
+ } else if (alpha > 0xff) {
+ alpha = 0xff;
+ }
+ mAlpha = alpha;
+ update = true;
+ }
+ break;
+ }
+ }
+
+ if (update) {
+ if (mListener != null) {
+ mListener.onColorChanged(Color.HSVToColor(mAlpha, new float[] {
+ mHue, mSat, mVal
+ }));
+ }
+ invalidate();
+ return true;
+ }
+ return super.onTrackballEvent(event);
+ }
+
+ @Override
+ public boolean onTouchEvent(MotionEvent event) {
+ boolean update = false;
+
+ switch (event.getAction()) {
+ case MotionEvent.ACTION_DOWN:
+ mStartTouchPoint = new Point((int) event.getX(), (int) event.getY());
+ update = moveTrackersIfNeeded(event);
+ break;
+ case MotionEvent.ACTION_MOVE:
+ update = moveTrackersIfNeeded(event);
+ break;
+ case MotionEvent.ACTION_UP:
+ mStartTouchPoint = null;
+ update = moveTrackersIfNeeded(event);
+ break;
+ }
+
+ if (update) {
+ requestFocus();
+ if (mListener != null) {
+ mListener.onColorChanged(Color.HSVToColor(mAlpha, new float[] {
+ mHue, mSat, mVal
+ }));
+ }
+ invalidate();
+ return true;
+ }
+
+ return super.onTouchEvent(event);
+ }
+
+ private boolean moveTrackersIfNeeded(MotionEvent event) {
+
+ if (mStartTouchPoint == null)
+ return false;
+
+ boolean update = false;
+ int startX = mStartTouchPoint.x;
+ int startY = mStartTouchPoint.y;
+
+ if (mHueRect.contains(startX, startY)) {
+ mLastTouchedPanel = PANEL_HUE;
+ mHue = pointToHue(event.getY());
+ update = true;
+ } else if (mSatValRect.contains(startX, startY)) {
+ mLastTouchedPanel = PANEL_SAT_VAL;
+ float[] result = pointToSatVal(event.getX(), event.getY());
+ mSat = result[0];
+ mVal = result[1];
+ update = true;
+ } else if (mAlphaRect != null && mAlphaRect.contains(startX, startY)) {
+ mLastTouchedPanel = PANEL_ALPHA;
+ mAlpha = pointToAlpha((int) event.getX());
+ update = true;
+ }
+
+ return update;
+ }
+
+ @Override
+ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+ int width = 0;
+ int height = 0;
+
+ int widthMode = MeasureSpec.getMode(widthMeasureSpec);
+ int heightMode = MeasureSpec.getMode(heightMeasureSpec);
+
+ int widthAllowed = MeasureSpec.getSize(widthMeasureSpec);
+ int heightAllowed = MeasureSpec.getSize(heightMeasureSpec);
+
+ widthAllowed = chooseWidth(widthMode, widthAllowed);
+ heightAllowed = chooseHeight(heightMode, heightAllowed);
+
+ if (!mShowAlphaPanel) {
+ height = (int) (widthAllowed - PANEL_SPACING - HUE_PANEL_WIDTH);
+
+ // If calculated height (based on the width) is more than the
+ // allowed height.
+ if (height > heightAllowed && heightMode != MeasureSpec.UNSPECIFIED) {
+ height = heightAllowed;
+ width = (int) (height + PANEL_SPACING + HUE_PANEL_WIDTH);
+ } else {
+ width = widthAllowed;
+ }
+ } else {
+
+ width = (int) (heightAllowed - ALPHA_PANEL_HEIGHT + HUE_PANEL_WIDTH);
+
+ if (width > widthAllowed && widthMode != MeasureSpec.UNSPECIFIED) {
+ width = widthAllowed;
+ height = (int) (widthAllowed - HUE_PANEL_WIDTH + ALPHA_PANEL_HEIGHT);
+ } else {
+ height = heightAllowed;
+ }
+ }
+ setMeasuredDimension(width, height);
+ }
+
+ private int chooseWidth(int mode, int size) {
+ if (mode == MeasureSpec.AT_MOST || mode == MeasureSpec.EXACTLY) {
+ return size;
+ } else { // (mode == MeasureSpec.UNSPECIFIED)
+ return getPrefferedWidth();
+ }
+ }
+
+ private int chooseHeight(int mode, int size) {
+ if (mode == MeasureSpec.AT_MOST || mode == MeasureSpec.EXACTLY) {
+ return size;
+ } else { // (mode == MeasureSpec.UNSPECIFIED)
+ return getPrefferedHeight();
+ }
+ }
+
+ private int getPrefferedWidth() {
+ int width = getPrefferedHeight();
+ if (mShowAlphaPanel) {
+ width -= (PANEL_SPACING + ALPHA_PANEL_HEIGHT);
+ }
+ return (int) (width + HUE_PANEL_WIDTH + PANEL_SPACING);
+ }
+
+ private int getPrefferedHeight() {
+ int height = (int) (200 * mDensity);
+ if (mShowAlphaPanel) {
+ height += PANEL_SPACING + ALPHA_PANEL_HEIGHT;
+ }
+ return height;
+ }
+
+ @Override
+ protected void onSizeChanged(int w, int h, int oldw, int oldh) {
+ super.onSizeChanged(w, h, oldw, oldh);
+
+ mDrawingRect = new RectF();
+ mDrawingRect.left = mDrawingOffset + getPaddingLeft();
+ mDrawingRect.right = w - mDrawingOffset - getPaddingRight();
+ mDrawingRect.top = mDrawingOffset + getPaddingTop();
+ mDrawingRect.bottom = h - mDrawingOffset - getPaddingBottom();
+
+ setUpSatValRect();
+ setUpHueRect();
+ setUpAlphaRect();
+ }
+
+ private void setUpSatValRect() {
+ final RectF dRect = mDrawingRect;
+ float panelSide = dRect.height() - BORDER_WIDTH_PX * 2;
+
+ if (mShowAlphaPanel) {
+ panelSide -= PANEL_SPACING + ALPHA_PANEL_HEIGHT;
+ }
+
+ float left = dRect.left + BORDER_WIDTH_PX;
+ float top = dRect.top + BORDER_WIDTH_PX;
+ float bottom = top + panelSide;
+ float right = left + panelSide;
+ mSatValRect = new RectF(left, top, right, bottom);
+ }
+
+ private void setUpHueRect() {
+ final RectF dRect = mDrawingRect;
+
+ float left = dRect.right - HUE_PANEL_WIDTH + BORDER_WIDTH_PX;
+ float top = dRect.top + BORDER_WIDTH_PX;
+ float bottom = dRect.bottom - BORDER_WIDTH_PX
+ - (mShowAlphaPanel ? (PANEL_SPACING + ALPHA_PANEL_HEIGHT) : 0);
+ float right = dRect.right - BORDER_WIDTH_PX;
+
+ mHueRect = new RectF(left, top, right, bottom);
+ }
+
+ private void setUpAlphaRect() {
+ if (!mShowAlphaPanel) {
+ return;
+ }
+
+ final RectF dRect = mDrawingRect;
+ float left = dRect.left + BORDER_WIDTH_PX;
+ float top = dRect.bottom - ALPHA_PANEL_HEIGHT + BORDER_WIDTH_PX;
+ float bottom = dRect.bottom - BORDER_WIDTH_PX;
+ float right = dRect.right - BORDER_WIDTH_PX;
+
+ mAlphaRect = new RectF(left, top, right, bottom);
+ mAlphaPattern = new AlphaPatternDrawable((int) (5 * mDensity));
+ mAlphaPattern.setBounds(Math.round(mAlphaRect.left), Math
+ .round(mAlphaRect.top), Math.round(mAlphaRect.right), Math
+ .round(mAlphaRect.bottom));
+ }
+
+ /**
+ * Set a OnColorChangedListener to get notified when the color selected by
+ * the user has changed.
+ *
+ * @param listener
+ */
+ public void setOnColorChangedListener(OnColorChangedListener listener) {
+ mListener = listener;
+ }
+
+ /**
+ * Set the color of the border surrounding all panels.
+ *
+ * @param color
+ */
+ public void setBorderColor(int color) {
+ mBorderColor = color;
+ invalidate();
+ }
+
+ /**
+ * Get the color of the border surrounding all panels.
+ */
+ public int getBorderColor() {
+ return mBorderColor;
+ }
+
+ /**
+ * Get the current color this view is showing.
+ *
+ * @return the current color.
+ */
+ public int getColor() {
+ return Color.HSVToColor(mAlpha, new float[] {
+ mHue, mSat, mVal
+ });
+ }
+
+ /**
+ * Set the color the view should show.
+ *
+ * @param color The color that should be selected.
+ */
+ public void setColor(int color) {
+ setColor(color, false);
+ }
+
+ /**
+ * Set the color this view should show.
+ *
+ * @param color The color that should be selected.
+ * @param callback If you want to get a callback to your
+ * OnColorChangedListener.
+ */
+ public void setColor(int color, boolean callback) {
+ int alpha = Color.alpha(color);
+ int red = Color.red(color);
+ int blue = Color.blue(color);
+ int green = Color.green(color);
+ float[] hsv = new float[3];
+
+ Color.RGBToHSV(red, green, blue, hsv);
+ mAlpha = alpha;
+ mHue = hsv[0];
+ mSat = hsv[1];
+ mVal = hsv[2];
+
+ if (callback && mListener != null) {
+ mListener.onColorChanged(Color.HSVToColor(mAlpha, new float[] {
+ mHue, mSat, mVal
+ }));
+ }
+ invalidate();
+ }
+
+ /**
+ * Get the drawing offset of the color picker view. The drawing offset is
+ * the distance from the side of a panel to the side of the view minus the
+ * padding. Useful if you want to have your own panel below showing the
+ * currently selected color and want to align it perfectly.
+ *
+ * @return The offset in pixels.
+ */
+ public float getDrawingOffset() {
+ return mDrawingOffset;
+ }
+
+ /**
+ * Set if the user is allowed to adjust the alpha panel. Default is false.
+ * If it is set to false no alpha will be set.
+ *
+ * @param visible
+ */
+ public void setAlphaSliderVisible(boolean visible) {
+ if (mShowAlphaPanel != visible) {
+ mShowAlphaPanel = visible;
+
+ /*
+ * Reset all shader to force a recreation. Otherwise they will not
+ * look right after the size of the view has changed.
+ */
+ mValShader = null;
+ mSatShader = null;
+ mHueShader = null;
+ mAlphaShader = null;
+ requestLayout();
+ }
+
+ }
+
+ public boolean isAlphaSliderVisible() {
+ return mShowAlphaPanel;
+ }
+
+ public void setSliderTrackerColor(int color) {
+ mSliderTrackerColor = color;
+ mHueTrackerPaint.setColor(mSliderTrackerColor);
+ invalidate();
+ }
+
+ public int getSliderTrackerColor() {
+ return mSliderTrackerColor;
+ }
+
+ /**
+ * Set the text that should be shown in the alpha slider. Set to null to
+ * disable text.
+ *
+ * @param res string resource id.
+ */
+ public void setAlphaSliderText(int res) {
+ String text = getContext().getString(res);
+ setAlphaSliderText(text);
+ }
+
+ /**
+ * Set the text that should be shown in the alpha slider. Set to null to
+ * disable text.
+ *
+ * @param text Text that should be shown.
+ */
+ public void setAlphaSliderText(String text) {
+ mAlphaSliderText = text;
+ invalidate();
+ }
+
+ /**
+ * Get the current value of the text that will be shown in the alpha slider.
+ *
+ * @return
+ */
+ public String getAlphaSliderText() {
+ return mAlphaSliderText;
+ }
+}