ronin/scripts/ronin.file.js
2016-11-15 10:31:38 -08:00

72 lines
2.2 KiB
JavaScript

function File()
{
Module.call(this);
this.storage = [];
this.active = function(cmd)
{
if(cmd.bang()){ this.storage = []; }
ronin.overlay.clear();
if(!cmd.path() && !cmd.value()){ return; }
var position = cmd.position() ? cmd.position() : new Position();
base_image = new Image();
base_image.src = cmd.value() && this.storage[cmd.value()] ? this.storage[cmd.value()] : cmd.path();
base_image.src += '?' + new Date().getTime();
base_image.crossOrigin = "Anonymous";
base_image.onload = function(){
var width = base_image.naturalWidth;
var height = base_image.naturalHeight;
if(cmd.rect()){
width = cmd.rect().width;
height = cmd.rect().height;
position.normalize(cmd.rect());
}
// Scale with only 1 unit
width = isNaN(width) && height > 0 ? (height*base_image.naturalWidth)/base_image.naturalHeight : width;
height = isNaN(height) && width > 0 ? (width*base_image.naturalHeight)/base_image.naturalWidth : height;
ronin.canvas.context().drawImage(base_image, position.x, position.y, width, height);
}
}
this.passive = function(cmd)
{
if(!cmd.path() && !cmd.value()){ return; }
var position = cmd.position() ? cmd.position() : new Position();
if(position && cmd.rect()){
ronin.overlay.draw(position,cmd.rect());
}
else if(position){
ronin.overlay.draw(position);
}
}
this.hint = function(cmd)
{
var hint_path = (cmd.path() ? "Path "+cmd.path()+" " : "");
var hint_position = (cmd.position() ? "Position "+cmd.position().x+","+cmd.position().y+" " : "");
var hint_rect = (cmd.rect() ? "Size "+cmd.rect().width+" by "+cmd.rect().height+" " : "");
return "File: "+hint_path+hint_position+hint_rect;
}
this.save = function(cmd)
{
if(cmd.value() > 0){
this.storage[cmd.value()] = ronin.canvas.element.toDataURL("image/png");
}
else{
var d = ronin.canvas.element.toDataURL("image/png");
var w = window.open('about:blank','image from canvas');
w.document.write("<title>"+(cmd.content[0] ? cmd.content[0] : "Untitled")+"</title><img src='"+d+"' alt='from canvas'/>");
}
}
}