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package yuku.ambilwarna; //ww w .j a v a 2 s. co m import lorian.graph.android.R; import android.app.*; import android.content.*; import android.content.DialogInterface.OnCancelListener; import android.graphics.*; import android.view.*; import android.widget.*; public class AmbilWarnaDialog { public interface OnAmbilWarnaListener { void onCancel(AmbilWarnaDialog dialog); void onOk(AmbilWarnaDialog dialog, int color); } final AlertDialog dialog; final OnAmbilWarnaListener listener; final View viewHue; final AmbilWarnaKotak viewSatVal; final ImageView viewCursor; final View viewOldColor; final View viewNewColor; final ImageView viewTarget; final ViewGroup viewContainer; final float[] currentColorHsv = new float[3]; /** * create an AmbilWarnaDialog. call this only from OnCreateDialog() or from a background thread. * * @param context * current context * @param color * current color * @param listener * an OnAmbilWarnaListener, allowing you to get back error or */ public AmbilWarnaDialog(final Context context, int color, OnAmbilWarnaListener listener) { this.listener = listener; Color.colorToHSV(color, currentColorHsv); final View view = LayoutInflater.from(context).inflate(R.layout.ambilwarna_dialog, null); viewHue = view.findViewById(R.id.ambilwarna_viewHue); viewSatVal = (AmbilWarnaKotak) view.findViewById(R.id.ambilwarna_viewSatBri); viewCursor = (ImageView) view.findViewById(R.id.ambilwarna_cursor); viewOldColor = view.findViewById(R.id.ambilwarna_warnaLama); viewNewColor = view.findViewById(R.id.ambilwarna_warnaBaru); viewTarget = (ImageView) view.findViewById(R.id.ambilwarna_target); viewContainer = (ViewGroup) view.findViewById(R.id.ambilwarna_viewContainer); viewSatVal.setHue(getHue()); viewOldColor.setBackgroundColor(color); viewNewColor.setBackgroundColor(color); viewHue.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_MOVE || event.getAction() == MotionEvent.ACTION_DOWN || event.getAction() == MotionEvent.ACTION_UP) { float y = event.getY(); if (y < 0.f) y = 0.f; if (y > viewHue.getMeasuredHeight()) y = viewHue.getMeasuredHeight() - 0.001f; // to avoid looping from end to start. float hue = 360.f - 360.f / viewHue.getMeasuredHeight() * y; if (hue == 360.f) hue = 0.f; setHue(hue); // update view viewSatVal.setHue(getHue()); moveCursor(); viewNewColor.setBackgroundColor(getColor()); return true; } return false; } }); viewSatVal.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_MOVE || event.getAction() == MotionEvent.ACTION_DOWN || event.getAction() == MotionEvent.ACTION_UP) { float x = event.getX(); // touch event are in dp units. float y = event.getY(); if (x < 0.f) x = 0.f; if (x > viewSatVal.getMeasuredWidth()) x = viewSatVal.getMeasuredWidth(); if (y < 0.f) y = 0.f; if (y > viewSatVal.getMeasuredHeight()) y = viewSatVal.getMeasuredHeight(); setSat(1.f / viewSatVal.getMeasuredWidth() * x); setVal(1.f - (1.f / viewSatVal.getMeasuredHeight() * y)); // update view moveTarget(); viewNewColor.setBackgroundColor(getColor()); return true; } return false; } }); dialog = new AlertDialog.Builder(context) .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { if (AmbilWarnaDialog.this.listener != null) { AmbilWarnaDialog.this.listener.onOk(AmbilWarnaDialog.this, getColor()); } } }) .setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { if (AmbilWarnaDialog.this.listener != null) { AmbilWarnaDialog.this.listener.onCancel(AmbilWarnaDialog.this); } } }) .setOnCancelListener(new OnCancelListener() { // if back button is used, call back our listener. @Override public void onCancel(DialogInterface paramDialogInterface) { if (AmbilWarnaDialog.this.listener != null) { AmbilWarnaDialog.this.listener.onCancel(AmbilWarnaDialog.this); } } }) .create(); // kill all padding from the dialog window dialog.setView(view, 0, 0, 0, 0); // move cursor & target on first draw ViewTreeObserver vto = view.getViewTreeObserver(); vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { @SuppressWarnings("deprecation") @Override public void onGlobalLayout() { moveCursor(); moveTarget(); view.getViewTreeObserver().removeGlobalOnLayoutListener(this); } }); } protected void moveCursor() { float y = viewHue.getMeasuredHeight() - (getHue() * viewHue.getMeasuredHeight() / 360.f); if (y == viewHue.getMeasuredHeight()) y = 0.f; RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) viewCursor.getLayoutParams(); layoutParams.leftMargin = (int) (viewHue.getLeft() - Math.floor(viewCursor.getMeasuredWidth() / 2) - viewContainer.getPaddingLeft()); ; layoutParams.topMargin = (int) (viewHue.getTop() + y - Math.floor(viewCursor.getMeasuredHeight() / 2) - viewContainer.getPaddingTop()); ; viewCursor.setLayoutParams(layoutParams); } protected void moveTarget() { float x = getSat() * viewSatVal.getMeasuredWidth(); float y = (1.f - getVal()) * viewSatVal.getMeasuredHeight(); RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) viewTarget.getLayoutParams(); layoutParams.leftMargin = (int) (viewSatVal.getLeft() + x - Math.floor(viewTarget.getMeasuredWidth() / 2) - viewContainer.getPaddingLeft()); layoutParams.topMargin = (int) (viewSatVal.getTop() + y - Math.floor(viewTarget.getMeasuredHeight() / 2) - viewContainer.getPaddingTop()); viewTarget.setLayoutParams(layoutParams); } private int getColor() { return Color.HSVToColor(currentColorHsv); } private float getHue() { return currentColorHsv[0]; } private float getSat() { return currentColorHsv[1]; } private float getVal() { return currentColorHsv[2]; } private void setHue(float hue) { currentColorHsv[0] = hue; } private void setSat(float sat) { currentColorHsv[1] = sat; } private void setVal(float val) { currentColorHsv[2] = val; } public void show() { dialog.show(); } public AlertDialog getDialog() { return dialog; } }