Ox.SmallVideoTimelineImage = function(options, self) { self = self || {}; var that = Ox.Element({}, self) .defaults({ duration: 1920, editing: false, getTimelineURL: null, 'in': 0, out: 0, results: [], subtitles: [], width: 256, type: 'player' }) .options(options || {}) .css({ position: 'absolute', width: self.options.width + 'px' }); // fixme: unless we do a block timeline, // we can always use a single 1920 png self.height = self.options.type == 'player' ? 16 : 24; self.imageHeight = self.options.type == 'player' ? 16 : 18; self.imageTop = self.options.type == 'player' ? 0 : 3; that.css({ height: self.height + 'px' }); self.$timeline = $('') .attr({ src: Ox.UI.PATH + 'png/transparent.png' }) .css({ position: 'absolute', width: self.options.width + 'px', height: self.imageHeight + 'px', top: self.imageTop + 'px' }) .appendTo(that.$element); getImageURL('timeline', function(imageURL) { self.$timeline.attr({ src: imageURL }); that.triggerEvent('load'); }); self.$subtitles = $('') .attr({ src: getImageURL('subtitles') }) .css({ position: 'absolute', width: self.options.width + 'px', height: self.imageHeight + 'px', top: self.imageTop + 'px' }) .appendTo(that.$element); self.$results = $('') .attr({ src: getImageURL('results') }) .css({ position: 'absolute', width: self.options.width + 'px', height: self.imageHeight + 'px', top: self.imageTop + 'px' }) .appendTo(that.$element); self.$selection = $('') .attr({ src: getImageURL('selection') }) .css({ position: 'absolute', width: self.options.width + 'px', height: self.imageHeight + 'px', top: self.imageTop + 'px' }) .appendTo(that.$element); function getImageURL(image, callback) { Ox.print(image == 'results' || image == 'selection' ? self.options.width : Math.ceil(self.options.duration)) var width = image == 'results' || image == 'selection' ? self.options.width : Math.ceil(self.options.duration), height = self.imageHeight, canvas = $('') .attr({ width: width, height: height })[0], context = canvas.getContext('2d'), imageData = context.createImageData(width, height), data = imageData.data; if (image == 'results') { var top = 0, bottom = height; self.options.results.forEach(function(result) { var left = Math.round( result['in'] * self.options.width / self.options.duration ), right = Math.round( result.out * self.options.width / self.options.duration ) + 1; Ox.loop(left, right, function(x) { Ox.loop(top, bottom, function(y) { var color = self.options.type == 'player' ? [255, 255, 0, 128] : (y == top || y == bottom - 1) ? [255, 255, 0, 255] : [255, 255, 0, 64], index = x * 4 + y * 4 * width; data[index] = color[0]; data[index + 1] = color[1]; data[index + 2] = color[2]; data[index + 3] = color[3]; }); }); }); } else if (image == 'selection' && self.options.out > self.options['in']) { var left = Math.round( self.options['in'] * self.options.width / self.options.duration ), right = Math.round( self.options.out * self.options.width / self.options.duration ) + 1, top = 0, bottom = height, rgb = self.options.editing ? [128, 255, 255] : [255, 255, 255]; Ox.loop(left, right, function(x) { Ox.loop(top, bottom, function(y) { var color = self.options.type == 'player' ? [rgb[0], rgb[1], rgb[2], 128] : [rgb[0], rgb[1], rgb[2], (y == top || y == bottom - 1) ? 255 : 64], index = x * 4 + y * 4 * width; data[index] = color[0]; data[index + 1] = color[1]; data[index + 2] = color[2]; data[index + 3] = color[3]; }); }); } else if (image == 'subtitles') { var bottom = self.options.type == 'player' ? 14 : 15; self.options.subtitles.forEach(function(subtitle) { var left = Math.round(subtitle['in']), right = Math.round(subtitle.out) + 1, top = bottom - subtitle.text.split('\n').length - 2; Ox.loop(left, right, function(x) { Ox.loop(top, bottom, function(y) { var color = (y == top || y == bottom - 1) ? [0, 0, 0] : [255, 255, 255], index = x * 4 + y * 4 * width; data[index] = color[0]; data[index + 1] = color[1]; data[index + 2] = color[2]; data[index + 3] = 128; }); }); }); } else if (image == 'timeline') { var $image, counter, images, top = self.options.type == 'player' ? 0 : 1; if (Ox.isString(self.options.timeline)) { $image = $('') .attr({ src: self.options.getTimelineURL(0) }) .load(function() { context.drawImage($image[0]) callback(canvas.toDataURL()); }); } else { counter = 0; images = Math.ceil(self.options.duration / 3600); Ox.loop(images, function(i) { var $image = $('') .attr({ src: self.options.getTimelineURL(i) }) .load(function() { context.drawImage($image[0], i * 3600, top); if (++counter == images) { callback(canvas.toDataURL()); } }); }); } } if (image != 'timeline') { context.putImageData(imageData, 0, 0); return canvas.toDataURL(); } } self.setOption = function(key, value) { if (key == 'in' || key == 'out') { self.$selection.attr({ src: getImageURL('selection') }); } else if (key == 'results') { self.$results.attr({ src: getImageURL('results') }); } else if (key == 'selection') { self.$selection.attr({ src: getImageURL('selection') }); } else if (key == 'subtitles') { self.$subtitles.attr({ src: getImageURL('subtitles') }); } else if (key == 'width') { that.css({width: value + 'px'}); self.$results .attr({src: getImageURL('results')}) .css({width: value + 'px'}); self.$selection .attr({src: getImageURL('selection')}) .css({width: value + 'px'}); self.$subtitles.css({width: value + 'px'}); self.$timeline.css({width: value + 'px'}); } } return that; }