99 lines
2.6 KiB
JavaScript
99 lines
2.6 KiB
JavaScript
function Canvas(rune)
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{
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Module.call(this,rune);
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this.parameters = [Rect,Position,Color,Bang];
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this.active = function(cmd)
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{
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if(cmd.bang()){ this.clear(); }
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if(cmd.rect()){
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this.resize(cmd.rect(),cmd.position());
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ronin.overlay.resize(cmd.rect());
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}
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if(cmd.color()){
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this.context().beginPath();
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this.context().rect(0, 0, this.element.width, this.element.height);
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this.context().fillStyle = cmd.color().hex;
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this.context().fill();
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}
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}
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this.passive = function(cmd)
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{
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if(cmd.rect()){
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ronin.overlay.draw(cmd.position(),cmd.rect());
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}
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}
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//
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this.resize = function(rect, position = null)
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{
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var canvas_pixels = ronin.canvas.element.toDataURL("image/png");
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var pixels_rect = new Rect(this.element.width+"x"+this.element.height);
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this.element.setAttribute('width',rect.width+"px");
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this.element.setAttribute('height',rect.height+"px");
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this.element.style.left = (window.innerWidth/2)-(rect.width/2);
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this.element.style.top = (window.innerHeight/2)-(rect.height/2);
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ronin.widget.element.style.left = (window.innerWidth/2)-(rect.width/2);
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ronin.widget.element.style.top = (window.innerHeight/2)+(rect.height/2);
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ronin.widget.element.style.width = rect.width+"px";
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ronin.widget.update();
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base_image = new Image();
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base_image.src = canvas_pixels;
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if(!position){ position = new Position("0,0");}
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ronin.canvas.context().drawImage(base_image, -position.x, -position.y, pixels_rect.width, pixels_rect.height);
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}
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this.context = function()
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{
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return this.element.getContext('2d');
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}
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this.clear = function()
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{
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this.context().clearRect(0, 0, this.element.width, this.element.height);
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}
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this.widget = function()
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{
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return "@ "+this.element.width+"x"+this.element.height+" ";
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}
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// Cursor
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this.drag_from = null;
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this.mouse_down = function(position)
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{
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this.drag_from = ronin.position_in_window(position);
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}
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this.mouse_move = function(position)
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{
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if(this.drag_from === null){ return; }
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position = ronin.position_in_window(position);
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var offset_x = this.drag_from.x - position.x;
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var offset_y = this.drag_from.y - position.y;
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ronin.surface.style.left = ronin.surface.style.left ? parseInt(ronin.surface.style.left) - offset_x : offset_x;
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ronin.surface.style.top = ronin.surface.style.top ? parseInt(ronin.surface.style.top) - offset_y : offset_y;
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this.drag_from = new Position(position.x,position.y);
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}
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this.mouse_up = function(event)
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{
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this.drag_from = null;
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}
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} |