mirror of
https://github.com/piskelapp/piskel.git
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95 lines
2.6 KiB
JavaScript
95 lines
2.6 KiB
JavaScript
/*
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* @provide pskl.drawingtools.RectangleSelect
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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.RectangleSelect = function() {
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this.toolId = "tool-rectangle-select";
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ns.BaseSelect.call(this);
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};
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pskl.utils.inherit(ns.RectangleSelect, ns.BaseSelect);
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/**
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* @override
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*/
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ns.RectangleSelect.prototype.applyToolAt = function(col, row, color, frame, overlay) {
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this.startCol = col;
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this.startRow = row;
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this.lastCol = col;
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this.lastRow = row;
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// TODO(vincz): Comment here nasty vince
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if(overlay.getPixel(col, row) != Constants.SELECTION_TRANSPARENT_COLOR) {
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this.mode = "select";
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// Drawing the first point of the rectangle in the fake overlay canvas:
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overlay.setPixel(col, row, color);
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}
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else {
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this.mode = "moveSelection";
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this.overlayFrameReference = overlay.clone();
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}
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};
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ns.RectangleSelect.prototype.moveToolAt = function(col, row, color, frame, overlay) {
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if(this.mode == "select") {
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// Clean overlay canvas:
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overlay.clear();
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// When the user moussemove (before releasing), we dynamically compute the
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// pixel to draw the line and draw this line in the overlay :
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var strokePoints = pskl.PixelUtils.getBoundRectanglePixels(this.startCol, this.startRow, col, row);
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color = Constants.SELECTION_TRANSPARENT_COLOR;
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// Drawing current stroke:
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for(var i = 0; i< strokePoints.length; i++) {
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overlay.setPixel(strokePoints[i].col, strokePoints[i].row, color);
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}
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}
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else if(this.mode == "moveSelection") {
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// TODO(vincz): Comment here nasty vince
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var deltaCol = col - this.lastCol;
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var deltaRow = row - this.lastRow;
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console.log(deltaCol)
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console.log(deltaRow)
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var colDiff = col - this.startCol, rowDiff = row - this.startRow;
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if (colDiff != 0 || rowDiff != 0) {
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// Update selection on overlay frame:
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this.shiftOverlayFrame_(colDiff, rowDiff, overlay, this.overlayFrameReference);
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// Update selection model:
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$.publish(Events.SELECTION_MOVE_REQUEST, [deltaCol, deltaRow]);
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}
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this.lastCol = col;
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this.lastRow = row;
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}
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};
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/**
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* @override
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*/
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ns.RectangleSelect.prototype.releaseToolAt = function(col, row, color, frame, overlay) {
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if(this.mode == "select") {
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overlay.clear();
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if(this.startCol == col &&this.startRow == row) {
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$.publish(Events.SELECTION_DISMISSED);
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} else {
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var selection = new pskl.selection.RectangularSelection(
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this.startCol, this.startRow, col, row);
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$.publish(Events.SELECTION_CREATED, [selection]);
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}
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} else if(this.mode == "moveSelection") {
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this.moveToolAt(col, row, color, frame, overlay);
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}
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};
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})();
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