function drawPicker()

in web_tool/js/jscolor.js [1374:1653]


		function drawPicker () {

			// At this point, when drawing the picker, we know what the parent elements are
			// and we can do all related DOM operations, such as registering events on them
			// or checking their positioning
			THIS._processParentElementsInDOM();

			if (!jsc.picker) {
				jsc.picker = {
					owner: null,
					wrap : document.createElement('div'),
					box : document.createElement('div'),
					boxS : document.createElement('div'), // shadow area
					boxB : document.createElement('div'), // border
					pad : document.createElement('div'),
					padB : document.createElement('div'), // border
					padM : document.createElement('div'), // mouse/touch area
					padPal : jsc.createPalette(),
					cross : document.createElement('div'),
					crossBY : document.createElement('div'), // border Y
					crossBX : document.createElement('div'), // border X
					crossLY : document.createElement('div'), // line Y
					crossLX : document.createElement('div'), // line X
					sld : document.createElement('div'),
					sldB : document.createElement('div'), // border
					sldM : document.createElement('div'), // mouse/touch area
					sldGrad : jsc.createSliderGradient(),
					sldPtrS : document.createElement('div'), // slider pointer spacer
					sldPtrIB : document.createElement('div'), // slider pointer inner border
					sldPtrMB : document.createElement('div'), // slider pointer middle border
					sldPtrOB : document.createElement('div'), // slider pointer outer border
					btn : document.createElement('div'),
					btnT : document.createElement('span') // text
				};

				jsc.picker.pad.appendChild(jsc.picker.padPal.elm);
				jsc.picker.padB.appendChild(jsc.picker.pad);
				jsc.picker.cross.appendChild(jsc.picker.crossBY);
				jsc.picker.cross.appendChild(jsc.picker.crossBX);
				jsc.picker.cross.appendChild(jsc.picker.crossLY);
				jsc.picker.cross.appendChild(jsc.picker.crossLX);
				jsc.picker.padB.appendChild(jsc.picker.cross);
				jsc.picker.box.appendChild(jsc.picker.padB);
				jsc.picker.box.appendChild(jsc.picker.padM);

				jsc.picker.sld.appendChild(jsc.picker.sldGrad.elm);
				jsc.picker.sldB.appendChild(jsc.picker.sld);
				jsc.picker.sldB.appendChild(jsc.picker.sldPtrOB);
				jsc.picker.sldPtrOB.appendChild(jsc.picker.sldPtrMB);
				jsc.picker.sldPtrMB.appendChild(jsc.picker.sldPtrIB);
				jsc.picker.sldPtrIB.appendChild(jsc.picker.sldPtrS);
				jsc.picker.box.appendChild(jsc.picker.sldB);
				jsc.picker.box.appendChild(jsc.picker.sldM);

				jsc.picker.btn.appendChild(jsc.picker.btnT);
				jsc.picker.box.appendChild(jsc.picker.btn);

				jsc.picker.boxB.appendChild(jsc.picker.box);
				jsc.picker.wrap.appendChild(jsc.picker.boxS);
				jsc.picker.wrap.appendChild(jsc.picker.boxB);
			}

			var p = jsc.picker;

			var displaySlider = !!jsc.getSliderComponent(THIS);
			var dims = jsc.getPickerDims(THIS);
			var crossOuterSize = (2 * THIS.pointerBorderWidth + THIS.pointerThickness + 2 * THIS.crossSize);
			var padToSliderPadding = jsc.getPadToSliderPadding(THIS);
			var borderRadius = Math.min(
				THIS.borderRadius,
				Math.round(THIS.padding * Math.PI)); // px
			var padCursor = 'crosshair';

			// wrap
			p.wrap.style.clear = 'both';
			p.wrap.style.width = (dims[0] + 2 * THIS.borderWidth) + 'px';
			p.wrap.style.height = (dims[1] + 2 * THIS.borderWidth) + 'px';
			p.wrap.style.zIndex = THIS.zIndex;

			// picker
			p.box.style.width = dims[0] + 'px';
			p.box.style.height = dims[1] + 'px';

			p.boxS.style.position = 'absolute';
			p.boxS.style.left = '0';
			p.boxS.style.top = '0';
			p.boxS.style.width = '100%';
			p.boxS.style.height = '100%';
			jsc.setBorderRadius(p.boxS, borderRadius + 'px');

			// picker border
			p.boxB.style.position = 'relative';
			p.boxB.style.border = THIS.borderWidth + 'px solid';
			p.boxB.style.borderColor = THIS.borderColor;
			p.boxB.style.background = THIS.backgroundColor;
			jsc.setBorderRadius(p.boxB, borderRadius + 'px');

			// IE hack:
			// If the element is transparent, IE will trigger the event on the elements under it,
			// e.g. on Canvas or on elements with border
			p.padM.style.background =
			p.sldM.style.background =
				'#FFF';
			jsc.setStyle(p.padM, 'opacity', '0');
			jsc.setStyle(p.sldM, 'opacity', '0');

			// pad
			p.pad.style.position = 'relative';
			p.pad.style.width = THIS.width + 'px';
			p.pad.style.height = THIS.height + 'px';

			// pad palettes (HSV and HVS)
			p.padPal.draw(THIS.width, THIS.height, jsc.getPadYComponent(THIS));

			// pad border
			p.padB.style.position = 'absolute';
			p.padB.style.left = THIS.padding + 'px';
			p.padB.style.top = THIS.padding + 'px';
			p.padB.style.border = THIS.insetWidth + 'px solid';
			p.padB.style.borderColor = THIS.insetColor;

			// pad mouse area
			p.padM._jscInstance = THIS;
			p.padM._jscControlName = 'pad';
			p.padM.style.position = 'absolute';
			p.padM.style.left = '0';
			p.padM.style.top = '0';
			p.padM.style.width = (THIS.padding + 2 * THIS.insetWidth + THIS.width + padToSliderPadding / 2) + 'px';
			p.padM.style.height = dims[1] + 'px';
			p.padM.style.cursor = padCursor;

			// pad cross
			p.cross.style.position = 'absolute';
			p.cross.style.left =
			p.cross.style.top =
				'0';
			p.cross.style.width =
			p.cross.style.height =
				crossOuterSize + 'px';

			// pad cross border Y and X
			p.crossBY.style.position =
			p.crossBX.style.position =
				'absolute';
			p.crossBY.style.background =
			p.crossBX.style.background =
				THIS.pointerBorderColor;
			p.crossBY.style.width =
			p.crossBX.style.height =
				(2 * THIS.pointerBorderWidth + THIS.pointerThickness) + 'px';
			p.crossBY.style.height =
			p.crossBX.style.width =
				crossOuterSize + 'px';
			p.crossBY.style.left =
			p.crossBX.style.top =
				(Math.floor(crossOuterSize / 2) - Math.floor(THIS.pointerThickness / 2) - THIS.pointerBorderWidth) + 'px';
			p.crossBY.style.top =
			p.crossBX.style.left =
				'0';

			// pad cross line Y and X
			p.crossLY.style.position =
			p.crossLX.style.position =
				'absolute';
			p.crossLY.style.background =
			p.crossLX.style.background =
				THIS.pointerColor;
			p.crossLY.style.height =
			p.crossLX.style.width =
				(crossOuterSize - 2 * THIS.pointerBorderWidth) + 'px';
			p.crossLY.style.width =
			p.crossLX.style.height =
				THIS.pointerThickness + 'px';
			p.crossLY.style.left =
			p.crossLX.style.top =
				(Math.floor(crossOuterSize / 2) - Math.floor(THIS.pointerThickness / 2)) + 'px';
			p.crossLY.style.top =
			p.crossLX.style.left =
				THIS.pointerBorderWidth + 'px';

			// slider
			p.sld.style.overflow = 'hidden';
			p.sld.style.width = THIS.sliderSize + 'px';
			p.sld.style.height = THIS.height + 'px';

			// slider gradient
			p.sldGrad.draw(THIS.sliderSize, THIS.height, '#000', '#000');

			// slider border
			p.sldB.style.display = displaySlider ? 'block' : 'none';
			p.sldB.style.position = 'absolute';
			p.sldB.style.right = THIS.padding + 'px';
			p.sldB.style.top = THIS.padding + 'px';
			p.sldB.style.border = THIS.insetWidth + 'px solid';
			p.sldB.style.borderColor = THIS.insetColor;

			// slider mouse area
			p.sldM._jscInstance = THIS;
			p.sldM._jscControlName = 'sld';
			p.sldM.style.display = displaySlider ? 'block' : 'none';
			p.sldM.style.position = 'absolute';
			p.sldM.style.right = '0';
			p.sldM.style.top = '0';
			p.sldM.style.width = (THIS.sliderSize + padToSliderPadding / 2 + THIS.padding + 2 * THIS.insetWidth) + 'px';
			p.sldM.style.height = dims[1] + 'px';
			p.sldM.style.cursor = 'default';

			// slider pointer inner and outer border
			p.sldPtrIB.style.border =
			p.sldPtrOB.style.border =
				THIS.pointerBorderWidth + 'px solid ' + THIS.pointerBorderColor;

			// slider pointer outer border
			p.sldPtrOB.style.position = 'absolute';
			p.sldPtrOB.style.left = -(2 * THIS.pointerBorderWidth + THIS.pointerThickness) + 'px';
			p.sldPtrOB.style.top = '0';

			// slider pointer middle border
			p.sldPtrMB.style.border = THIS.pointerThickness + 'px solid ' + THIS.pointerColor;

			// slider pointer spacer
			p.sldPtrS.style.width = THIS.sliderSize + 'px';
			p.sldPtrS.style.height = sliderPtrSpace + 'px';

			// the Close button
			function setBtnBorder () {
				var insetColors = THIS.insetColor.split(/\s+/);
				var outsetColor = insetColors.length < 2 ? insetColors[0] : insetColors[1] + ' ' + insetColors[0] + ' ' + insetColors[0] + ' ' + insetColors[1];
				p.btn.style.borderColor = outsetColor;
			}
			p.btn.style.display = THIS.closable ? 'block' : 'none';
			p.btn.style.position = 'absolute';
			p.btn.style.left = THIS.padding + 'px';
			p.btn.style.bottom = THIS.padding + 'px';
			p.btn.style.padding = '0 15px';
			p.btn.style.height = THIS.buttonHeight + 'px';
			p.btn.style.border = THIS.insetWidth + 'px solid';
			setBtnBorder();
			p.btn.style.color = THIS.buttonColor;
			p.btn.style.font = '12px sans-serif';
			p.btn.style.textAlign = 'center';
			try {
				p.btn.style.cursor = 'pointer';
			} catch(eOldIE) {
				p.btn.style.cursor = 'hand';
			}
			p.btn.onmousedown = function () {
				THIS.hide();
			};
			p.btnT.style.lineHeight = THIS.buttonHeight + 'px';
			p.btnT.innerHTML = '';
			p.btnT.appendChild(document.createTextNode(THIS.closeText));

			// place pointers
			redrawPad();
			redrawSld();

			// If we are changing the owner without first closing the picker,
			// make sure to first deal with the old owner
			if (jsc.picker.owner && jsc.picker.owner !== THIS) {
				jsc.unsetClass(jsc.picker.owner.targetElement, THIS.activeClass);
			}

			// Set the new picker owner
			jsc.picker.owner = THIS;

			// The redrawPosition() method needs picker.owner to be set, that's why we call it here,
			// after setting the owner
			if (jsc.isElementType(container, 'body')) {
				jsc.redrawPosition();
			} else {
				jsc._drawPosition(THIS, 0, 0, 'relative', false);
			}

			if (p.wrap.parentNode != container) {
				container.appendChild(p.wrap);
			}

			jsc.setClass(THIS.targetElement, THIS.activeClass);
		}