piskel/js/drawingtools/SimplePen.js
Vince 2a20cc90ea Integration (with myself) fixes
- Adding default value in empty frames to avoid artifact when paint
bucketing (you may have issues with previously stored model before this
commit, no migration plan for papybrossette :D)
 - Fix issue: Model does not show up when loading a remote GAE model
 - Removing FRAMESHEET_UPDATED events (remains of history manager
implementation)
2012-09-03 20:45:25 +02:00

55 lines
1.5 KiB
JavaScript

/*
* @provide pskl.drawingtools.SimplePen
*
* @require pskl.utils
*/
(function() {
var ns = $.namespace("pskl.drawingtools");
ns.SimplePen = function() {
this.toolId = "tool-pen"
};
this.previousCol = null;
this.previousRow = null;
pskl.utils.inherit(ns.SimplePen, ns.BaseTool);
/**
* @override
*/
ns.SimplePen.prototype.applyToolAt = function(col, row, frame, color, canvas, dpi) {
this.previousCol = col;
this.previousRow = row;
// Change model:
var color = pskl.utils.normalizeColor(color);
if (color != frame[col][row]) {
frame[col][row] = color;
}
// Draw on canvas:
// TODO: Remove that when we have the centralized redraw loop
this.drawPixelInCanvas(col, row, canvas, color, dpi);
};
ns.SimplePen.prototype.moveToolAt = function(col, row, frame, color, canvas, dpi) {
if((Math.abs(col - this.previousCol) > 1) || (Math.abs(row - this.previousRow) > 1)) {
// The pen movement is too fast for the mousemove frequency, there is a gap between the
// current point and the previously drawn one.
// We fill the gap by calculating missing dots (simple linear interpolation) and draw them.
var interpolatedPixels = this.getLinePixels_(col, this.previousCol, row, this.previousRow);
for(var i=0, l=interpolatedPixels.length; i<l; i++) {
this.applyToolAt(interpolatedPixels[i].col, interpolatedPixels[i].row, frame, color, canvas, dpi);
}
}
else {
this.applyToolAt(col, row, frame, color, canvas, dpi);
}
this.previousCol = col;
this.previousRow = row;
};
})();