piskel/src/js/drawingtools/Rectangle.js

60 lines
1.6 KiB
JavaScript
Raw Normal View History

/**
2012-09-02 15:19:20 +04:00
* @provide pskl.drawingtools.Rectangle
*
* @require pskl.utils
*/
(function() {
var ns = $.namespace("pskl.drawingtools");
2012-09-02 15:19:20 +04:00
ns.Rectangle = function() {
this.toolId = "tool-rectangle";
this.helpText = "Rectangle tool";
// Rectangle's first point coordinates (set in applyToolAt)
this.startCol = null;
this.startRow = null;
};
2012-09-02 15:19:20 +04:00
pskl.utils.inherit(ns.Rectangle, ns.BaseTool);
/**
* @override
*/
2013-12-06 01:12:48 +04:00
ns.Rectangle.prototype.applyToolAt = function(col, row, color, frame, overlay, event) {
this.startCol = col;
this.startRow = row;
// Drawing the first point of the rectangle in the fake overlay canvas:
overlay.setPixel(col, row, color);
};
2012-09-02 15:19:20 +04:00
2013-12-06 01:12:48 +04:00
ns.Rectangle.prototype.moveToolAt = function(col, row, color, frame, overlay, event) {
overlay.clear();
if(color == Constants.TRANSPARENT_COLOR) {
color = Constants.SELECTION_TRANSPARENT_COLOR;
}
// draw in overlay
this.drawRectangle_(col, row, color, overlay);
};
2012-09-02 15:19:20 +04:00
/**
* @override
*/
2013-12-06 01:12:48 +04:00
ns.Rectangle.prototype.releaseToolAt = function(col, row, color, frame, overlay, event) {
overlay.clear();
if(frame.containsPixel(col, row)) { // cancel if outside of canvas
// draw in frame to finalize
this.drawRectangle_(col, row, color, frame);
}
};
2012-09-02 15:19:20 +04:00
ns.Rectangle.prototype.drawRectangle_ = function (col, row, color, targetFrame) {
var strokePoints = pskl.PixelUtils.getBoundRectanglePixels(this.startCol, this.startRow, col, row);
for(var i = 0; i< strokePoints.length; i++) {
// Change model:
targetFrame.setPixel(strokePoints[i].col, strokePoints[i].row, color);
}
};
2012-09-02 15:19:20 +04:00
})();