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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,73 +1,83 @@ | ||
| function SelectionHelper ( selectionBox, renderer, cssClassName ) { | ||
| /** | ||
| * @author HypnosNova / https://www.threejs.org.cn/gallery | ||
| */ | ||
|
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| this.element = document.createElement( "div" ); | ||
| this.element.classList.add( cssClassName ); | ||
| this.element.style.pointerEvents = "none"; | ||
| THREE.SelectionHelper = ( function () { | ||
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| this.renderer = renderer; | ||
| function SelectionHelper( selectionBox, renderer, cssClassName ) { | ||
|
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| this.startPoint = { x: 0, y: 0 }; | ||
| this.pointTopLeft = { x: 0, y: 0 }; | ||
| this.pointBottomRight = { x: 0, y: 0 }; | ||
| this.element = document.createElement( 'div' ); | ||
| this.element.classList.add( cssClassName ); | ||
| this.element.style.pointerEvents = 'none'; | ||
|
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| this.isDown = false; | ||
| this.renderer = renderer; | ||
|
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| this.renderer.domElement.addEventListener( "mousedown", function ( event ) { | ||
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| this.isDown = true; | ||
| this.onSelectStart( event ); | ||
| this.startPoint = { x: 0, y: 0 }; | ||
| this.pointTopLeft = { x: 0, y: 0 }; | ||
| this.pointBottomRight = { x: 0, y: 0 }; | ||
|
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| }.bind( this ), false ); | ||
| this.isDown = false; | ||
|
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| this.renderer.domElement.addEventListener( "mousemove", function ( event ) { | ||
| this.renderer.domElement.addEventListener( 'mousedown', function ( event ) { | ||
|
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| if ( this.isDown ) { | ||
| this.isDown = true; | ||
| this.onSelectStart( event ); | ||
|
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| this.onSelectMove( event ); | ||
| }.bind( this ), false ); | ||
|
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| } | ||
| this.renderer.domElement.addEventListener( 'mousemove', function ( event ) { | ||
|
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| }.bind( this ), false ); | ||
| if ( this.isDown ) { | ||
|
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| this.renderer.domElement.addEventListener( "mouseup", function ( event ) { | ||
| this.onSelectMove( event ); | ||
|
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| this.isDown = false; | ||
| this.onSelectOver( event ); | ||
| } | ||
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| }.bind( this ), false ); | ||
|
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| this.renderer.domElement.addEventListener( 'mouseup', function ( event ) { | ||
|
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| this.isDown = false; | ||
| this.onSelectOver( event ); | ||
|
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| }.bind( this ), false ); | ||
|
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| } | ||
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| SelectionHelper.prototype.onSelectStart = function ( event ) { | ||
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| this.renderer.domElement.parentElement.appendChild( this.element ); | ||
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| this.element.style.left = event.clientX + 'px'; | ||
| this.element.style.top = event.clientY + 'px'; | ||
| this.element.style.width = '0px'; | ||
| this.element.style.height = '0px'; | ||
|
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| this.startPoint.x = event.clientX; | ||
| this.startPoint.y = event.clientY; | ||
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| }.bind( this ), false ); | ||
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| } | ||
| }; | ||
|
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| SelectionHelper.prototype.onSelectStart = function ( event ) { | ||
|
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| this.renderer.domElement.parentElement.appendChild( this.element ); | ||
| SelectionHelper.prototype.onSelectMove = function ( event ) { | ||
|
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| this.element.style.left = event.clientX + "px"; | ||
| this.element.style.top = event.clientY + "px"; | ||
| this.element.style.width = "0px"; | ||
| this.element.style.height = "0px"; | ||
| this.pointBottomRight.x = Math.max( this.startPoint.x, event.clientX ); | ||
| this.pointBottomRight.y = Math.max( this.startPoint.y, event.clientY ); | ||
| this.pointTopLeft.x = Math.min( this.startPoint.x, event.clientX ); | ||
| this.pointTopLeft.y = Math.min( this.startPoint.y, event.clientY ); | ||
|
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| this.startPoint.x = event.clientX; | ||
| this.startPoint.y = event.clientY; | ||
| this.element.style.left = this.pointTopLeft.x + 'px'; | ||
| this.element.style.top = this.pointTopLeft.y + 'px'; | ||
| this.element.style.width = ( this.pointBottomRight.x - this.pointTopLeft.x ) + 'px'; | ||
| this.element.style.height = ( this.pointBottomRight.y - this.pointTopLeft.y ) + 'px'; | ||
|
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| } | ||
| }; | ||
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| SelectionHelper.prototype.onSelectMove = function ( event ) { | ||
| SelectionHelper.prototype.onSelectOver = function () { | ||
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| this.pointBottomRight.x = Math.max( this.startPoint.x, event.clientX ); | ||
| this.pointBottomRight.y = Math.max( this.startPoint.y, event.clientY ); | ||
| this.pointTopLeft.x = Math.min( this.startPoint.x, event.clientX ); | ||
| this.pointTopLeft.y = Math.min( this.startPoint.y, event.clientY ); | ||
| this.element.parentElement.removeChild( this.element ); | ||
|
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| this.element.style.left = this.pointTopLeft.x + "px"; | ||
| this.element.style.top = this.pointTopLeft.y + "px"; | ||
| this.element.style.width = ( this.pointBottomRight.x - this.pointTopLeft.x ) + "px"; | ||
| this.element.style.height = ( this.pointBottomRight.y - this.pointTopLeft.y ) + "px"; | ||
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| } | ||
| }; | ||
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| SelectionHelper.prototype.onSelectOver = function ( event ) { | ||
| return SelectionHelper; | ||
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| this.element.parentElement.removeChild( this.element ); | ||
|
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| } | ||
| } )(); |
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