ronin/scripts/modules/surface.layer.js
2017-03-17 14:35:34 -07:00

104 lines
2.4 KiB
JavaScript

function Layer(name,manager = null)
{
this.rune = "@";
this.name = name;
this.manager = manager;
this.element = document.createElement("canvas");
this.element.setAttribute("id","_"+name);
this.element.setAttribute("class","layer");
this.resize = function(rect)
{
ronin.terminal.log(new Log(this,"Resize "+this.name+" to "+rect.render()));
var pixels_rect = new Rect(this.element.width+"x"+this.element.height);
this.element.width = rect.width * 2;
this.element.height = rect.height * 2;
this.element.style.width = rect.width+"px";
this.element.style.height = rect.height+"px";
this.context().scale(2,2);
}
this.clear = function()
{
this.context().clearRect(0, 0, this.element.width, this.element.height);
}
this.remove = function(manager)
{
ronin.terminal.log(new Log(this,"Removing layer "+this.name));
manager.layer = null;
ronin.surface.layers[this.name].element.outerHTML = "";
delete ronin.surface.layers[this.name];
}
this.context = function()
{
return this.element.getContext('2d');
}
this.image = function()
{
return this.element.toDataURL('image/png');
}
//
this.widget = function()
{
var e_name = this.name;
var e_class = "";
if(ronin.surface.active_layer.name == this.name){ e_class += "highlight "; }
if(this.manager != null){ e_class += "managed "; }
return "<span class='"+e_class+"'>"+e_name+"</span>";
}
this.mouse_mode = function()
{
return "Move";
}
this.move_from = null;
this.mouse_down = function(position)
{
this.move_from = ronin.position_in_window(position);
}
this.mouse_move = function(position)
{
if(this.move_from === null){ return; }
position = ronin.position_in_window(position);
var offset_x = this.move_from.x - position.x;
var offset_y = this.move_from.y - position.y;
var imageData = this.context().getImageData(0, 0, ronin.surface.size.width * 2, ronin.surface.size.height * 2);
this.clear();
this.context().putImageData(imageData, -offset_x * 2, -offset_y * 2);
this.move_from = new Position(position.x,position.y);
}
this.mouse_up = function(event)
{
this.move_from = null;
}
// Blink
this.is_blinking = false;
this.blink = function()
{
if(this.is_blinking == false){ return; }
this.element.style.display = this.element.style.display == "none" ? "block" : "none";
}
}