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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| /* | ||
| * All tools must implement following functions | ||
| * click(x, y, painters) | ||
| * dblclick(x, y, painters) | ||
| * mousedown(x, y, painters) | ||
| * mouseup(x, y, painters) | ||
| * mousemove(x, y, painters) | ||
| * mouseout(x, y, painters) | ||
| */ | ||
| function Roi() { | ||
| this.started = false; | ||
| this.startX = 0; | ||
| this.startY = 0; | ||
| this.color = '#0f0'; | ||
| } | ||
|
|
||
| Roi.prototype.setColor = function(hex) { | ||
| this.color = hex; | ||
| }; | ||
|
|
||
| Roi.prototype.click = function() { | ||
| }; | ||
|
|
||
| Roi.prototype.mousedown = function(x, y) { | ||
| this.startX = x; | ||
| this.startY = y; | ||
| this.started = true; | ||
| }; | ||
|
|
||
| Roi.prototype.mouseup = function(x, y, painters, target) { | ||
| if(this.started) { | ||
| // calculate and show length | ||
| var painter = getPainterFromId(target.id, painters); | ||
| var context = painter.context; | ||
| var dist = calculateDist(painter, this.startX, this.startY, x, y); | ||
| context.font = "10px Helvetica"; | ||
| context.fillStyle = this.color; | ||
| context.fillText(dist, x + 3, y + 3); | ||
| this.started = false; | ||
| } | ||
| }; | ||
|
|
||
| Roi.prototype.mousemove = function(x, y, painters, target) { | ||
| if(this.started) { | ||
| var painter = getPainterFromId(target.id, painters); | ||
| var context = painter.context; | ||
| getPainterFromId(target.id, painters).drawImg(); | ||
| context.beginPath(); | ||
| context.moveTo(this.startX, this.startY); | ||
| context.lineTo(x, y); | ||
| context.strokeStyle = this.color; | ||
| context.stroke(); | ||
| context.closePath(); | ||
| } | ||
| }; | ||
|
|
||
| Roi.prototype.mouseout = function() { | ||
| this.started = false; | ||
| }; | ||
|
|
||
| //var drawLine = function(x, y, context) { | ||
| // painters[0].context.clearRect(0, 0, painters[0].canvas.width, painters[0].canvas.height); | ||
| // context.beginPath(); | ||
| // context.moveTo(this.startX, this.startY); | ||
| // context.lineTo(x, y); | ||
| // context.strokeStyle = '#0f0'; | ||
| // context.stroke(); | ||
| // context.closePath(); | ||
| //}; | ||
|
|
||
| var getPainterFromId = function(id, painters) { | ||
| for(var i = 0, len = painters.length; i < len; i++) { | ||
| if(painters[i].canvas.id === id) { | ||
| return painters[i]; | ||
| } | ||
| } | ||
| return null; | ||
| }; | ||
|
|
||
| var calculateDist = function(painter, startX, startY, endX, endY) { | ||
| var pixelSpacing = painter.currentFile.PixelSpacing ? painter.currentFile.PixelSpacing : [1, 1]; | ||
| var a = (endX - startX) * pixelSpacing[0] / painter.getScale(); | ||
| var b = (endY - startY) * pixelSpacing[1] / painter.getScale(); | ||
| return Math.sqrt(Math.abs(a^2 + b^2)).toFixed(2) + 'mm'; | ||
| }; |