67 lines
No EOL
2.7 KiB
JavaScript
67 lines
No EOL
2.7 KiB
JavaScript
(function () {
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var ns = $.namespace("pskl.controller");
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ns.AnimatedPreviewController = function (framesheet, container, dpi) {
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this.framesheet = framesheet;
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this.container = container;
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this.elapsedTime = 0;
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this.currentIndex = 0;
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this.fps = parseInt($("#preview-fps")[0].value, 10);
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var renderingOptions = {
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"dpi": this.calculateDPI_()
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};
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this.renderer = new pskl.rendering.FrameRenderer(this.container, renderingOptions);
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$.subscribe(Events.FRAME_SIZE_CHANGED, this.updateDPI_.bind(this));
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};
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ns.AnimatedPreviewController.prototype.init = function () {
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// the oninput event won't work on IE10 unfortunately, but at least will provide a
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// consistent behavior across all other browsers that support the input type range
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// see https://bugzilla.mozilla.org/show_bug.cgi?id=853670
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$("#preview-fps")[0].addEventListener('change', this.onFPSSliderChange.bind(this));
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};
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ns.AnimatedPreviewController.prototype.onFPSSliderChange = function (evt) {
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this.setFPS(parseInt($("#preview-fps")[0].value, 10));
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};
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ns.AnimatedPreviewController.prototype.setFPS = function (fps) {
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this.fps = fps;
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$("#preview-fps").val(this.fps);
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$("#display-fps").html(this.fps + " FPS");
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};
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ns.AnimatedPreviewController.prototype.render = function (delta) {
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this.elapsedTime += delta;
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var index = Math.floor(this.elapsedTime / (1000/this.fps));
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if (index != this.currentIndex) {
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this.currentIndex = index;
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if (!this.framesheet.hasFrameAtIndex(this.currentIndex)) {
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this.currentIndex = 0;
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this.elapsedTime = 0;
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}
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this.renderer.render(this.framesheet.getFrameByIndex(this.currentIndex));
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}
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};
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/**
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* Calculate the preview DPI depending on the framesheet size
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*/
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ns.AnimatedPreviewController.prototype.calculateDPI_ = function () {
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var previewSize = 200,
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framePixelHeight = this.framesheet.getCurrentFrame().getHeight(),
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framePixelWidth = this.framesheet.getCurrentFrame().getWidth();
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// TODO (julz) : should have a utility to get a Size from framesheet easily (what about empty framesheets though ?)
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//return pskl.PixelUtils.calculateDPIForContainer($(".preview-container"), framePixelHeight, framePixelWidth);
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return pskl.PixelUtils.calculateDPI(previewSize, previewSize, framePixelHeight, framePixelWidth);
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};
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ns.AnimatedPreviewController.prototype.updateDPI_ = function () {
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this.dpi = this.calculateDPI_();
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this.renderer.updateDPI(this.dpi);
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};
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})(); |