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ColorPicker.js
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ColorPicker.js
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/**
* @file ModPE widget library for providing color picker API.
* @author Astro <[email protected]>
* @version 1.0
* @license Apache-2.0
*/
/** @namespace global */
($ => {
"use strict";
const Bitmap_ = android.graphics.Bitmap,
Canvas_ = android.graphics.Canvas,
Color_ = android.graphics.Color,
LinearGradient_ = android.graphics.LinearGradient,
Paint_ = android.graphics.Paint,
Shader_ = android.graphics.Shader,
BitmapDrawable_ = android.graphics.drawable.BitmapDrawable,
ColorDrawable_ = android.graphics.drawable.ColorDrawable,
Gravity_ = android.view.Gravity,
MotionEvent_ = android.view.MotionEvent,
View_ = android.view.View,
LinearLayout_ = android.widget.LinearLayout,
PopupWindow_ = android.widget.PopupWindow,
TextView_ = android.widget.TextView,
CONTEXT = com.mojang.minecraftpe.MainActivity.currentMainActivity.get(),
DP = CONTEXT.getResources().getDisplayMetrics().density;
/**
* Class representing a color picker.
* @since 2016-05-04
* @class
* @memberOf global
* @param {Number} [r=255] Red
* @param {Number} [g=0] Blue
* @param {Number} [b=0] Green
* @param {Function} [func=function(){}] Callback to be invoked when color was changed
*/
function ColorPicker(r, g, b, func) {
r = r || 255;
g = g || 0;
b = b || 0;
func = func || (() => {});
let controller = this._controller = new TextView_(CONTEXT),
picker = this._picker = new TextView_(CONTEXT),
paint = new Paint_(),
bitmapC = Bitmap_.createBitmap(40, 240, Bitmap_.Config.ARGB_8888),
bitmapP = Bitmap_.createBitmap(240, 240, Bitmap_.Config.ARGB_8888),
canvasC = new Canvas_(bitmapC),
canvasP = new Canvas_(bitmapP),
pickerX = 120,
pickerY = 1;
paint.setShader(new LinearGradient_(0, 0, 0, 40, Color_.rgb(255, 0, 0), Color_.rgb(255, 255, 0), Shader_.TileMode.CLAMP));
canvasC.drawRect(0, 0, 40, 40, paint);
paint.setShader(new LinearGradient_(0, 40, 0, 80, Color_.rgb(255, 255, 0), Color_.rgb(0, 255, 0), Shader_.TileMode.CLAMP));
canvasC.drawRect(0, 40, 40, 80, paint);
paint.setShader(new LinearGradient_(0, 80, 0, 120, Color_.rgb(0, 255, 0), Color_.rgb(0, 255, 255), Shader_.TileMode.CLAMP));
canvasC.drawRect(0, 80, 40, 120, paint);
paint.setShader(new LinearGradient_(0, 120, 0, 160, Color_.rgb(0, 255, 255), Color_.rgb(0, 0, 255), Shader_.TileMode.CLAMP));
canvasC.drawRect(0, 120, 40, 160, paint);
paint.setShader(new LinearGradient_(0, 160, 0, 200, Color_.rgb(0, 0, 255), Color_.rgb(255, 0, 255), Shader_.TileMode.CLAMP));
canvasC.drawRect(0, 160, 40, 200, paint);
paint.setShader(new LinearGradient_(0, 200, 0, 240, Color_.rgb(255, 0, 255), Color_.rgb(255, 0, 0), Shader_.TileMode.CLAMP));
canvasC.drawRect(0, 200, 40, 240, paint);
paint.setShader(new LinearGradient_(240, 0, 0, 0, Color_.rgb(r, g, b), Color_.WHITE, Shader_.TileMode.CLAMP));
canvasP.drawRect(0, 0, 240, 240, paint);
paint.setShader(new LinearGradient_(0, 0, 0, 240, Color_.TRANSPARENT, Color_.BLACK, Shader_.TileMode.CLAMP));
canvasP.drawRect(0, 0, 240, 240, paint);
controller.setBackgroundDrawable(new BitmapDrawable_(bitmapC));
controller.setOnTouchListener(new View_.OnTouchListener({
onTouch(view, event) {
let action = event.getAction();
if (action === MotionEvent_.ACTION_DOWN || action === MotionEvent_.ACTION_MOVE || action === MotionEvent_.ACTION_UP) {
let x = Math.floor(event.getX() / DP),
y = Math.floor(event.getY() / DP);
if (x > 0 && x < 40 && y > 0 && y < 240) {
paint.setShader(new LinearGradient_(240, 0, 0, 0, bitmapC.getPixel(0, y), Color_.WHITE, Shader_.TileMode.CLAMP));
canvasP.drawRect(0, 0, 240, 240, paint);
paint.setShader(new LinearGradient_(0, 0, 0, 240, Color_.TRANSPARENT, Color_.BLACK, Shader_.TileMode.CLAMP));
canvasP.drawRect(0, 0, 240, 240, paint);
picker.setBackgroundDrawable(new BitmapDrawable_(bitmapP));
func(bitmapP.getPixel(pickerX, pickerY));
}
}
return true;
}
}));
picker.setBackgroundDrawable(new BitmapDrawable_(bitmapP));
picker.setOnTouchListener(new View_.OnTouchListener({
onTouch(view, event) {
let action = event.getAction();
if (action === MotionEvent_.ACTION_DOWN || action === MotionEvent_.ACTION_MOVE || action === MotionEvent_.ACTION_UP) {
let x = Math.floor(event.getX() / DP),
y = Math.floor(event.getY() / DP);
if (x > 0 && x < 240 && y > 0 && y < 240) {
pickerX = x;
pickerY = y;
func(bitmapP.getPixel(x, y));
}
}
return true;
}
}));
}
/**
* Returns the widget of color picker.
* @since 2016-05-04
* @returns {android.widget.LinearLayout} the widget of color picker
*/
ColorPicker.prototype.show = function () {
let layout = new LinearLayout_(CONTEXT);
layout.addView(this._picker, DP * 240, DP * 240);
layout.addView(this._controller, DP * 40, DP * 240);
return layout;
};
/**
* Class representing a window that shows a color picker.
* @since 2016-05-04
* @class
* @memberOf global
* @param {Number} [r=255] Red
* @param {Number} [g=0] Green
* @param {Number} [b=0] Blue
* @param {Function} [func=function(){}] Callback to be invoked when color was changed
*/
function ColorPickerWindow(r, g, b, func) {
r = r || 255;
g = g || 0;
b = b || 0;
func = func || (() => {});
let viewer = this._viewer = new TextView_(CONTEXT);
this._picker = new ColorPicker(r, g, b, color => {
viewer.setBackgroundDrawable(new ColorDrawable_(color));
func(color);
});
viewer.setBackgroundDrawable(new ColorDrawable_(Color_.rgb(r, g, b)));
viewer.setGravity(Gravity_.CENTER);
viewer.setText("Click to close");
viewer.setTextColor(Color_.rgb(r, g, b));
viewer.setTextSize(1, 18);
}
/**
* Display the window of color picker.
* @since 2016-05-04
*/
ColorPickerWindow.prototype.show = function () {
let thiz = this;
CONTEXT.runOnUiThread({
run() {
let layout = new LinearLayout_(CONTEXT),
window = new PopupWindow_(layout, -2, -2);
thiz._viewer.setOnClickListener(new View_.OnClickListener({
onClick(view) {
CONTEXT.runOnUiThread({
run() {
window.dismiss();
window = null;
}
});
}
}));
layout.addView(thiz._picker.show(), DP * 280, DP * 240);
layout.addView(thiz._viewer, DP * 280, DP * 100);
layout.setOrientation(1);
window.setBackgroundDrawable(new ColorDrawable_(Color_.rgb(97, 97, 97)));
window.showAtLocation(CONTEXT.getWindow().getDecorView(), Gravity_.CENTER, 0, 0);
}
});
};
$.ColorPicker = ColorPicker;
$.ColorPickerWindow = ColorPickerWindow;
})(this);