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https://issues.apache.org/jira/browse/OPENMEETINGS-731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13728787#comment-13728787
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Andun Sameera Liyanagunawardana commented on OPENMEETINGS-731:
--------------------------------------------------------------
I have implemented some parts of taking dimension input from the user. Say I
have the dimensions as variables, and then what should happen ?
For a example where should I have to put the limiting logic in the Zoom Out
Function,
bay.whiteboard.Whiteboard.prototype.zoomOut = function(){
this.scale(new bay.whiteboard.Vector(this.graphics.getCoordSize().width/2,
this.graphics.getCoordSize().height/2), 0.5);
this.redrawAll();
}
Or do I have to go to,
bay.whiteboard.Whiteboard.prototype.scale = function(p, n){
var coords = this.reverseTransform(p);
this.area.transformation = this.area.transformation.translate(coords.x,
coords.y).scale(n, n).translate(-coords.x, -coords.y);
this.onSetTransformation();
}
I think I have to check the dimensions values before do the scaling. Or as I
notices I can ignore scaling if the scaled out put is going out from the
dimension range. To do that do I have to go in to onSetTransformation function?
bay.whiteboard.Whiteboard.prototype.onSetTransformation = function(){
this.area.reverseTransformation = this.area.transformation.createInverse();
var coords = this.reverseTransform([0, 0, this.graphics.getCoordSize().width,
this.graphics.getCoordSize().height]);
console.log(coords[0]+'-'+coords[2]+'-'+coords[1]+'-'+coords[3]) ;
this.area.minX = coords[0];
this.area.minY = coords[3];
this.area.maxX = coords[2];
this.area.maxY = coords[1];
}
> Drawing area of the Wicket based Whiteboard should be limited
> -------------------------------------------------------------
>
> Key: OPENMEETINGS-731
> URL: https://issues.apache.org/jira/browse/OPENMEETINGS-731
> Project: Openmeetings
> Issue Type: Sub-task
> Components: HTML5
> Affects Versions: 3.0.0 Apache Release
> Reporter: Andun Sameera Liyanagunawardana
> Fix For: 3.0.0 Apache Release
>
>
> Now we can drag drawings on whiteboard endlessly. It have to be limited to
> drawing area.
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