diff options
Diffstat (limited to 'mobileapp/src/smoots/udesign/colorpicker/ColorPickerView.java')
| -rwxr-xr-x | mobileapp/src/smoots/udesign/colorpicker/ColorPickerView.java | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/mobileapp/src/smoots/udesign/colorpicker/ColorPickerView.java b/mobileapp/src/smoots/udesign/colorpicker/ColorPickerView.java deleted file mode 100755 index f2dea98..0000000 --- a/mobileapp/src/smoots/udesign/colorpicker/ColorPickerView.java +++ /dev/null @@ -1,187 +0,0 @@ -package smoots.udesign.colorpicker;
-
-import android.content.Context;
-import android.graphics.Canvas;
-import android.graphics.Color;
-import android.graphics.Paint;
-import android.graphics.RectF;
-import android.graphics.Shader;
-import android.graphics.SweepGradient;
-import android.view.MotionEvent;
-import android.view.View;
-
-public class ColorPickerView extends View {
- private final Paint mPaint;
- private final Paint mCenterPaint;
- private final int[] mColors;
- private final ColorPickerListener mListener;
-
- ColorPickerView(Context c, ColorPickerListener l, int color) {
- super(c);
- mListener = l;
- mColors = new int[] { 0xFFFF0000, 0xFFFF00FF, 0xFF0000FF,
- 0xFF00FFFF, 0xFF00FF00, 0xFFFFFF00, 0xFFFF0000 };
- Shader s = new SweepGradient(0, 0, mColors, null);
-
- mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
- mPaint.setShader(s);
- mPaint.setStyle(Paint.Style.STROKE);
- mPaint.setStrokeWidth(32);
-
- mCenterPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
- mCenterPaint.setColor(color);
- mCenterPaint.setStrokeWidth(5);
- }
-
- private boolean mTrackingCenter;
- private boolean mHighlightCenter;
-
- @Override
- protected void onDraw(Canvas canvas) {
- float r = CENTER_X - mPaint.getStrokeWidth() * 0.5f;
-
- canvas.translate(CENTER_X, CENTER_X);
-
- canvas.drawOval(new RectF(-r, -r, r, r), mPaint);
- canvas.drawCircle(0, 0, CENTER_RADIUS, mCenterPaint);
-
- if (mTrackingCenter) {
- int c = mCenterPaint.getColor();
- mCenterPaint.setStyle(Paint.Style.STROKE);
-
- if (mHighlightCenter) {
- mCenterPaint.setAlpha(0xFF);
- } else {
- mCenterPaint.setAlpha(0x80);
- }
- canvas.drawCircle(0, 0, CENTER_RADIUS
- + mCenterPaint.getStrokeWidth(), mCenterPaint);
-
- mCenterPaint.setStyle(Paint.Style.FILL);
- mCenterPaint.setColor(c);
- }
- }
-
- @Override
- protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
- setMeasuredDimension(CENTER_X * 2, CENTER_Y * 2);
- }
-
- private static final int CENTER_X = 100;
- private static final int CENTER_Y = 100;
- private static final int CENTER_RADIUS = 32;
-
-
- private int ave(int s, int d, float p) {
- return s + java.lang.Math.round(p * (d - s));
- }
-
- private int interpColor(int colors[], float unit) {
- if (unit <= 0)
- return colors[0];
- if (unit >= 1)
- return colors[colors.length - 1];
-
- float p = unit * (colors.length - 1);
- int i = (int) p;
- p -= i;
-
- // now p is just the fractional part [0...1) and i is the index
- int c0 = colors[i];
- int c1 = colors[i + 1];
- int a = ave(Color.alpha(c0), Color.alpha(c1), p);
- int r = ave(Color.red(c0), Color.red(c1), p);
- int g = ave(Color.green(c0), Color.green(c1), p);
- int b = ave(Color.blue(c0), Color.blue(c1), p);
-
- return Color.argb(a, r, g, b);
- }
-
- /*
-
- private int floatToByte(float x) {
- int n = java.lang.Math.round(x);
- return n;
- }
-
- private int pinToByte(int n) {
- if (n < 0) {
- n = 0;
- } else if (n > 255) {
- n = 255;
- }
- return n;
- }
-
- private int rotateColor(int color, float rad) {
- float deg = rad * 180 / 3.1415927f;
- int r = Color.red(color);
- int g = Color.green(color);
- int b = Color.blue(color);
-
- ColorMatrix cm = new ColorMatrix();
- ColorMatrix tmp = new ColorMatrix();
-
- cm.setRGB2YUV();
- tmp.setRotate(0, deg);
- cm.postConcat(tmp);
- tmp.setYUV2RGB();
- cm.postConcat(tmp);
-
- final float[] a = cm.getArray();
-
- int ir = floatToByte(a[0] * r + a[1] * g + a[2] * b);
- int ig = floatToByte(a[5] * r + a[6] * g + a[7] * b);
- int ib = floatToByte(a[10] * r + a[11] * g + a[12] * b);
-
- return Color.argb(Color.alpha(color), pinToByte(ir), pinToByte(ig),
- pinToByte(ib));
- }
- */
-
- private static final float PI = 3.1415926f;
-
- @Override
- public boolean onTouchEvent(MotionEvent event) {
- float x = event.getX() - CENTER_X;
- float y = event.getY() - CENTER_Y;
- boolean inCenter = java.lang.Math.sqrt(x * x + y * y) <= CENTER_RADIUS;
-
- switch (event.getAction()) {
- case MotionEvent.ACTION_DOWN:
- mTrackingCenter = inCenter;
- if (inCenter) {
- mHighlightCenter = true;
- invalidate();
- break;
- }
- case MotionEvent.ACTION_MOVE:
- if (mTrackingCenter) {
- if (mHighlightCenter != inCenter) {
- mHighlightCenter = inCenter;
- invalidate();
- }
- } else {
- float angle = (float) java.lang.Math.atan2(y, x);
- // need to turn angle [-PI ... PI] into unit [0....1]
- float unit = angle / (2 * PI);
- if (unit < 0) {
- unit += 1;
- }
- mCenterPaint.setColor(interpColor(mColors, unit));
- invalidate();
- }
- break;
- case MotionEvent.ACTION_UP:
- if (mTrackingCenter) {
- if (inCenter) {
- mListener.onColorChanged(mCenterPaint.getColor());
- }
- mTrackingCenter = false; // so we draw w/o halo
- invalidate();
- }
- break;
- }
- return true;
- }
-}
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