35 lines
1.5 KiB
JavaScript
35 lines
1.5 KiB
JavaScript
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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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const Cairo = imports.cairo;
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const Lang = imports.lang;
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const St = imports.gi.St;
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const HorizontalSeparator = new Lang.Class({
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Name: 'HorizontalSeparator',
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_init: function (params) {
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this.actor = new St.DrawingArea(params);
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this.actor.connect('repaint', Lang.bind(this, this._onRepaint));
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},
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_onRepaint: function(area) {
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let cr = area.get_context();
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let themeNode = area.get_theme_node();
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let [width, height] = area.get_surface_size();
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let margin = themeNode.get_length('-margin-horizontal');
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let gradientHeight = themeNode.get_length('-gradient-height');
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let startColor = themeNode.get_color('-gradient-start');
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let endColor = themeNode.get_color('-gradient-end');
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let gradientWidth = (width - margin * 2);
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let gradientOffset = (height - gradientHeight) / 2;
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let pattern = new Cairo.LinearGradient(margin, gradientOffset, width - margin, gradientOffset + gradientHeight);
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pattern.addColorStopRGBA(0, startColor.red / 255, startColor.green / 255, startColor.blue / 255, startColor.alpha / 255);
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pattern.addColorStopRGBA(0.5, endColor.red / 255, endColor.green / 255, endColor.blue / 255, endColor.alpha / 255);
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pattern.addColorStopRGBA(1, startColor.red / 255, startColor.green / 255, startColor.blue / 255, startColor.alpha / 255);
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cr.setSource(pattern);
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cr.rectangle(margin, gradientOffset, gradientWidth, gradientHeight);
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cr.fill();
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}
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});
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