mirror of
https://github.com/piskelapp/piskel.git
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54 lines
1.5 KiB
JavaScript
54 lines
1.5 KiB
JavaScript
/*
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* @provide pskl.drawingtools.BaseSelect
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*
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* @require pskl.utils
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*/
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(function() {
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var ns = $.namespace("pskl.drawingtools");
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ns.BaseSelect = function() {
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this.secondaryToolId = "tool-move";
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this.BodyRoot = $('body');
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// Select's first point coordinates (set in applyToolAt)
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this.startCol = null;
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this.startRow = null;
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};
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pskl.utils.inherit(ns.BaseSelect, ns.BaseTool);
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/**
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* @override
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*/
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ns.BaseSelect.prototype.moveUnactiveToolAt = function(col, row, color, frame, overlay) {
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// If we mouseover the selection draw inside the overlay frame, show the 'move' cursor
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// instead of the 'select' one. It indicates that we can move the selection by dragndroping it.
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if(overlay.getPixel(col, row) != Constants.SELECTION_TRANSPARENT_COLOR) {
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this.BodyRoot.addClass(this.toolId);
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this.BodyRoot.removeClass(this.secondaryToolId);
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} else {
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this.BodyRoot.addClass(this.secondaryToolId);
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this.BodyRoot.removeClass(this.toolId);
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}
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};
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/**
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* Move the overlay frame filled with semi-transparent pixels that represent the selection
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* @private
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*/
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ns.BaseSelect.prototype.shiftOverlayFrame_ = function (colDiff, rowDiff, overlayFrame, reference) {
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var color;
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for (var col = 0 ; col < overlayFrame.getWidth() ; col++) {
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for (var row = 0 ; row < overlayFrame.getHeight() ; row++) {
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if (reference.containsPixel(col - colDiff, row - rowDiff)) {
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color = reference.getPixel(col - colDiff, row - rowDiff);
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} else {
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color = Constants.TRANSPARENT_COLOR;
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}
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overlayFrame.setPixel(col, row, color)
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}
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}
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};
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})();
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