93 lines
2.9 KiB
JavaScript
93 lines
2.9 KiB
JavaScript
/*
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* @provide pskl.ToolSelector
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*
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* @require Constants
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* @require Events
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* @require pskl.drawingtools
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*/
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$.namespace("pskl");
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pskl.ToolSelector = (function() {
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var toolInstances = {
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"simplePen" : new pskl.drawingtools.SimplePen(),
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"eraser" : new pskl.drawingtools.Eraser(),
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"paintBucket" : new pskl.drawingtools.PaintBucket(),
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"stroke" : new pskl.drawingtools.Stroke(),
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"rectangle" : new pskl.drawingtools.Rectangle(),
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"move" : new pskl.drawingtools.Move(),
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"rectangleSelect" : new pskl.drawingtools.RectangleSelect(),
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"shapeSelect" : new pskl.drawingtools.ShapeSelect()
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};
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var currentSelectedTool = toolInstances.simplePen;
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var previousSelectedTool = toolInstances.simplePen;
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var activateToolOnStage_ = function(tool) {
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var stage = $("body");
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var previousSelectedToolClass = stage.data("selected-tool-class");
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if(previousSelectedToolClass) {
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stage.removeClass(previousSelectedToolClass);
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}
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stage.addClass(tool.toolId);
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stage.data("selected-tool-class", tool.toolId);
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};
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var selectTool_ = function(tool) {
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console.log("Selecting Tool:" , currentSelectedTool);
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currentSelectedTool = tool;
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activateToolOnStage_(currentSelectedTool);
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$.publish(Events.TOOL_SELECTED, [tool]);
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};
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/**
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* @private
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*/
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var onToolIconClicked_ = function(evt) {
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var target = $(evt.target);
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var clickedTool = target.closest(".tool-icon");
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if(clickedTool.length) {
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for(var tool in toolInstances) {
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if (toolInstances[tool].toolId == clickedTool.data().toolId) {
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selectTool_(toolInstances[tool]);
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// Show tool as selected:
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$("#tools-container .tool-icon.selected").removeClass("selected");
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clickedTool.addClass("selected");
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}
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}
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}
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};
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/**
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* Get state for the checkbox that control the display of the grid
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* on the drawing canvas.
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* @private
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*/
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var isShowGridChecked_ = function() {
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var showGridCheckbox = $('#show-grid');
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var isChecked = showGridCheckbox.is(':checked');
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return isChecked;
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};
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return {
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init: function() {
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// Initialize tool:
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// Set SimplePen as default selected tool:
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selectTool_(toolInstances.simplePen);
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// Activate listener on tool panel:
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$("#tools-container").click(onToolIconClicked_);
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// Show/hide the grid on drawing canvas:
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$.publish(Events.GRID_DISPLAY_STATE_CHANGED, [isShowGridChecked_()]);
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$('#show-grid').change(function(evt) {
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var checked = isShowGridChecked_();
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$.publish(Events.GRID_DISPLAY_STATE_CHANGED, [checked]);
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});
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}
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};
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})();
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