1 /** 2 * 3 * Copyright (c) 2008-2010 Ricardo Quesada 4 * Copyright (c) 2011-2012 cocos2d-x.org 5 * Copyright (c) 2013-2014 Chukong Technologies Inc. 6 * 7 * Copyright 2012 Stewart Hamilton-Arrandale. 8 * http://creativewax.co.uk 9 * 10 * Modified by Yannick Loriot. 11 * http://yannickloriot.com 12 * 13 * Permission is hereby granted, free of charge, to any person obtaining a copy 14 * of this software and associated documentation files (the "Software"), to deal 15 * in the Software without restriction, including without limitation the rights 16 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 17 * copies of the Software, and to permit persons to whom the Software is 18 * furnished to do so, subject to the following conditions: 19 * 20 * The above copyright notice and this permission notice shall be included in 21 * all copies or substantial portions of the Software. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 24 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 25 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 26 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 27 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 28 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 29 * THE SOFTWARE. 30 * 31 * 32 * converted to Javascript / cocos2d-x by Angus C 33 */ 34 35 /** 36 * ControlSaturationBrightnessPicker: Saturation brightness picker ui component. 37 * @class 38 * @extends cc.Control 39 * 40 * @property {Number} saturation - <@readonly> Saturation value of the picker 41 * @property {Number} brightness - <@readonly> Brightness value of the picker 42 * @property {cc.Sprite} background - <@readonly> The background sprite 43 * @property {cc.Sprite} overlay - <@readonly> The overlay sprite 44 * @property {cc.Sprite} shadow - <@readonly> The shadow sprite 45 * @property {cc.Sprite} slider - <@readonly> The slider sprite 46 * @property {cc.Point} startPos - <@readonly> The start position of the picker 47 */ 48 cc.ControlSaturationBrightnessPicker = cc.Control.extend(/** @lends cc.ControlSaturationBrightnessPicker# */{ 49 _saturation:0, 50 _brightness:0, 51 52 _background:null, 53 _overlay:null, 54 _shadow:null, 55 _slider:null, 56 _startPos:null, 57 58 _boxPos:0, 59 _boxSize:0, 60 _className:"ControlSaturationBrightnessPicker", 61 62 getSaturation:function () { 63 return this._saturation; 64 }, 65 getBrightness:function () { 66 return this._brightness; 67 }, 68 69 //not sure if these need to be there actually. I suppose someone might want to access the sprite? 70 getBackground:function () { 71 return this._background; 72 }, 73 getOverlay:function () { 74 return this._brightness; 75 }, 76 getShadow:function () { 77 return this._shadow; 78 }, 79 getSlider:function () { 80 return this._slider; 81 }, 82 getStartPos:function () { 83 return this._startPos; 84 }, 85 86 initWithTargetAndPos:function (target, pos) { 87 if (cc.Control.prototype.init.call(this)) { 88 // Add background and slider sprites 89 this._background = cc.ControlUtils.addSpriteToTargetWithPosAndAnchor("colourPickerBackground.png", target, pos, cc.p(0.0, 0.0)); 90 this._overlay = cc.ControlUtils.addSpriteToTargetWithPosAndAnchor("colourPickerOverlay.png", target, pos, cc.p(0.0, 0.0)); 91 this._shadow = cc.ControlUtils.addSpriteToTargetWithPosAndAnchor("colourPickerShadow.png", target, pos, cc.p(0.0, 0.0)); 92 this._slider = cc.ControlUtils.addSpriteToTargetWithPosAndAnchor("colourPicker.png", target, pos, cc.p(0.5, 0.5)); 93 94 this._startPos = pos; // starting position of the colour picker 95 this._boxPos = 35; // starting position of the virtual box area for picking a colour 96 this._boxSize = this._background.getContentSize().width / 2; // the size (width and height) of the virtual box for picking a colour from 97 return true; 98 } else 99 return false; 100 }, 101 102 setEnabled:function (enabled) { 103 cc.Control.prototype.setEnabled.call(this, enabled); 104 if (this._slider) { 105 this._slider.setOpacity(enabled ? 255 : 128); 106 } 107 }, 108 109 updateWithHSV:function (hsv) { 110 var hsvTemp = new cc.HSV(); 111 hsvTemp.s = 1; 112 hsvTemp.h = hsv.h; 113 hsvTemp.v = 1; 114 115 var rgb = cc.ControlUtils.RGBfromHSV(hsvTemp); 116 this._background.setColor(cc.color(0 | (rgb.r * 255), 0 | (rgb.g * 255), 0 | (rgb.b * 255))); 117 }, 118 updateDraggerWithHSV:function (hsv) { 119 // Set the position of the slider to the correct saturation and brightness 120 var pos = cc.p(this._startPos.x + this._boxPos + (this._boxSize * (1 - hsv.s)), 121 this._startPos.y + this._boxPos + (this._boxSize * hsv.v)); 122 123 // update 124 this._updateSliderPosition(pos); 125 }, 126 127 _updateSliderPosition:function (sliderPosition) { 128 // Clamp the position of the icon within the circle 129 130 // Get the center point of the bkgd image 131 var centerX = this._startPos.x + this._background.getBoundingBox().width * 0.5; 132 var centerY = this._startPos.y + this._background.getBoundingBox().height * 0.5; 133 134 // Work out the distance difference between the location and center 135 var dx = sliderPosition.x - centerX; 136 var dy = sliderPosition.y - centerY; 137 var dist = Math.sqrt(dx * dx + dy * dy); 138 139 // Update angle by using the direction of the location 140 var angle = Math.atan2(dy, dx); 141 142 // Set the limit to the slider movement within the colour picker 143 var limit = this._background.getBoundingBox().width * 0.5; 144 145 // Check distance doesn't exceed the bounds of the circle 146 if (dist > limit) { 147 sliderPosition.x = centerX + limit * Math.cos(angle); 148 sliderPosition.y = centerY + limit * Math.sin(angle); 149 } 150 151 // Set the position of the dragger 152 this._slider.setPosition(sliderPosition); 153 154 155 // Clamp the position within the virtual box for colour selection 156 if (sliderPosition.x < this._startPos.x + this._boxPos) 157 sliderPosition.x = this._startPos.x + this._boxPos; 158 else if (sliderPosition.x > this._startPos.x + this._boxPos + this._boxSize - 1) 159 sliderPosition.x = this._startPos.x + this._boxPos + this._boxSize - 1; 160 if (sliderPosition.y < this._startPos.y + this._boxPos) 161 sliderPosition.y = this._startPos.y + this._boxPos; 162 else if (sliderPosition.y > this._startPos.y + this._boxPos + this._boxSize) 163 sliderPosition.y = this._startPos.y + this._boxPos + this._boxSize; 164 165 // Use the position / slider width to determin the percentage the dragger is at 166 this._saturation = 1.0 - Math.abs((this._startPos.x + this._boxPos - sliderPosition.x) / this._boxSize); 167 this._brightness = Math.abs((this._startPos.y + this._boxPos - sliderPosition.y) / this._boxSize); 168 }, 169 170 _checkSliderPosition:function (location) { 171 // Clamp the position of the icon within the circle 172 // get the center point of the bkgd image 173 var centerX = this._startPos.x + this._background.getBoundingBox().width * 0.5; 174 var centerY = this._startPos.y + this._background.getBoundingBox().height * 0.5; 175 176 // work out the distance difference between the location and center 177 var dx = location.x - centerX; 178 var dy = location.y - centerY; 179 var dist = Math.sqrt(dx * dx + dy * dy); 180 181 // check that the touch location is within the bounding rectangle before sending updates 182 if (dist <= this._background.getBoundingBox().width * 0.5) { 183 this._updateSliderPosition(location); 184 this.sendActionsForControlEvents(cc.CONTROL_EVENT_VALUECHANGED); 185 return true; 186 } 187 return false; 188 }, 189 190 onTouchBegan:function (touch, event) { 191 if (!this.isEnabled() || !this.isVisible()) { 192 return false; 193 } 194 // Get the touch location 195 var touchLocation = this.getTouchLocation(touch); 196 197 // Check the touch position on the slider 198 return this._checkSliderPosition(touchLocation); 199 }, 200 201 onTouchMoved:function (touch, event) { 202 // Get the touch location 203 var touchLocation = this.getTouchLocation(touch); 204 205 //small modification: this allows changing of the colour, even if the touch leaves the bounding area 206 //this._updateSliderPosition(touchLocation); 207 //this.sendActionsForControlEvents(cc.CONTROL_EVENT_VALUECHANGED); 208 // Check the touch position on the slider 209 this._checkSliderPosition(touchLocation); 210 } 211 }); 212 213 var _p = cc.ControlSaturationBrightnessPicker.prototype; 214 215 // Extended properties 216 /** @expose */ 217 _p.saturation; 218 cc.defineGetterSetter(_p, "saturation", _p.getSaturation); 219 /** @expose */ 220 _p.brightness; 221 cc.defineGetterSetter(_p, "brightness", _p.getBrightness); 222 /** @expose */ 223 _p.background; 224 cc.defineGetterSetter(_p, "background", _p.getBackground); 225 /** @expose */ 226 _p.overlay; 227 cc.defineGetterSetter(_p, "overlay", _p.getOverlay); 228 /** @expose */ 229 _p.shadow; 230 cc.defineGetterSetter(_p, "shadow", _p.getShadow); 231 /** @expose */ 232 _p.slider; 233 cc.defineGetterSetter(_p, "slider", _p.getSlider); 234 /** @expose */ 235 _p.startPos; 236 cc.defineGetterSetter(_p, "startPos", _p.getStartPos); 237 238 _p = null; 239 240 cc.ControlSaturationBrightnessPicker.create = function (target, pos) { 241 var pRet = new cc.ControlSaturationBrightnessPicker(); 242 pRet.initWithTargetAndPos(target, pos); 243 return pRet; 244 };