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public/js/flot.js  view on Meta::CPAN

                eventHolder.bind("mouseleave", onMouseLeave);
            }

            if (options.grid.clickable)
                eventHolder.click(onClick);

            executeHooks(hooks.bindEvents, [eventHolder]);
        }

        function shutdown() {
            if (redrawTimeout)
                clearTimeout(redrawTimeout);

            eventHolder.unbind("mousemove", onMouseMove);
            eventHolder.unbind("mouseleave", onMouseLeave);
            eventHolder.unbind("click", onClick);

            executeHooks(hooks.shutdown, [eventHolder]);
        }

        function setTransformationHelpers(axis) {
            // set helper functions on the axis, assumes plot area

public/js/flot.js  view on Meta::CPAN

                    var div = legend.children();
                    $('<div style="position:absolute;width:' + div.width() + 'px;height:' + div.height() + 'px;' + pos +'background-color:' + c + ';"> </div>').prependTo(legend).css('opacity', options.legend.backgroundOpacity);
                }
            }
        }


        // interactive features

        var highlights = [],
            redrawTimeout = null;

        // returns the data item the mouse is over, or null if none is found
        function findNearbyItem(mouseX, mouseY, seriesFilter) {
            var maxDistance = options.grid.mouseActiveRadius,
                smallestDistance = maxDistance * maxDistance + 1,
                item = null, foundPoint = false, i, j, ps;

            for (i = series.length - 1; i >= 0; --i) {
                if (!seriesFilter(series[i]))
                    continue;

public/js/flot.js  view on Meta::CPAN

            placeholder.trigger(eventname, [ pos, item ]);
        }

        function triggerRedrawOverlay() {
            var t = options.interaction.redrawOverlayInterval;
            if (t == -1) {      // skip event queue
                drawOverlay();
                return;
            }

            if (!redrawTimeout)
                redrawTimeout = setTimeout(drawOverlay, t);
        }

        function drawOverlay() {
            redrawTimeout = null;

            // draw highlights
            octx.save();
            overlay.clear();
            octx.translate(plotOffset.left, plotOffset.top);

            var i, hi;
            for (i = 0; i < highlights.length; ++i) {
                hi = highlights[i];