80 lines
2.3 KiB
JavaScript
80 lines
2.3 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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/* exported ScreenCorner */
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const { Clutter, GObject, Meta, St } = imports.gi;
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const Cairo = imports.cairo;
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const Layout = imports.ui.layout;
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var ScreenCorner = GObject.registerClass(
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class ScreenCorner extends St.DrawingArea {
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_init(corner, monitor) {
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super._init({ style_class: 'screen-corner' });
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this._corner = corner;
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this.add_constraint(new Layout.MonitorConstraint({ index: monitor.index }));
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if (corner === Meta.DisplayCorner.TOPRIGHT ||
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corner === Meta.DisplayCorner.BOTTOMRIGHT)
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this.x_align = Clutter.ActorAlign.END;
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if (corner === Meta.DisplayCorner.BOTTOMLEFT ||
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corner === Meta.DisplayCorner.BOTTOMRIGHT)
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this.y_align = Clutter.ActorAlign.END;
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}
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vfunc_repaint() {
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let node = this.get_theme_node();
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let cornerRadius = node.get_length("-screen-corner-radius");
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let backgroundColor = node.get_color('-screen-corner-background-color');
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let cr = this.get_context();
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cr.setOperator(Cairo.Operator.SOURCE);
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switch (this._corner) {
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case Meta.DisplayCorner.TOPLEFT:
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cr.arc(cornerRadius, cornerRadius,
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cornerRadius, Math.PI, 3 * Math.PI / 2);
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cr.lineTo(0, 0);
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break;
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case Meta.DisplayCorner.TOPRIGHT:
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cr.arc(0, cornerRadius,
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cornerRadius, 3 * Math.PI / 2, 2 * Math.PI);
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cr.lineTo(cornerRadius, 0);
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break;
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case Meta.DisplayCorner.BOTTOMLEFT:
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cr.arc(cornerRadius, 0,
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cornerRadius, Math.PI / 2, Math.PI);
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cr.lineTo(0, cornerRadius);
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break;
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case Meta.DisplayCorner.BOTTOMRIGHT:
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cr.arc(0, 0,
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cornerRadius, 0, Math.PI / 2);
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cr.lineTo(cornerRadius, cornerRadius);
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break;
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}
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cr.closePath();
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Clutter.cairo_set_source_color(cr, backgroundColor);
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cr.fill();
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cr.$dispose();
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}
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vfunc_style_changed() {
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super.vfunc_style_changed();
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let node = this.get_theme_node();
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let cornerRadius = node.get_length("-screen-corner-radius");
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this.set_size(cornerRadius, cornerRadius);
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}
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});
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