diff options
author | Kristian Lyngstol <kristian@bohemians.org> | 2015-04-02 19:24:45 +0200 |
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committer | Kristian Lyngstol <kristian@bohemians.org> | 2015-04-02 19:24:45 +0200 |
commit | 0d8bba263dc195147d6fdb09662e7926f0a58b3e (patch) | |
tree | 4c570b4376c323e585120e7695b8715be7aa8881 /web/nms.gathering.org/speedometer/c3-master/src/zoom.js | |
parent | e4354b47bd8891c5b1ee591fdf74b3ca67eee461 (diff) |
Bump lots of changes
Diffstat (limited to 'web/nms.gathering.org/speedometer/c3-master/src/zoom.js')
-rw-r--r-- | web/nms.gathering.org/speedometer/c3-master/src/zoom.js | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/web/nms.gathering.org/speedometer/c3-master/src/zoom.js b/web/nms.gathering.org/speedometer/c3-master/src/zoom.js new file mode 100644 index 0000000..b46a0b1 --- /dev/null +++ b/web/nms.gathering.org/speedometer/c3-master/src/zoom.js @@ -0,0 +1,69 @@ +c3_chart_internal_fn.initZoom = function () { + var $$ = this, d3 = $$.d3, config = $$.config, startEvent; + + $$.zoom = d3.behavior.zoom() + .on("zoomstart", function () { + startEvent = d3.event.sourceEvent; + $$.zoom.altDomain = d3.event.sourceEvent.altKey ? $$.x.orgDomain() : null; + config.zoom_onzoomstart.call($$.api, d3.event.sourceEvent); + }) + .on("zoom", function () { + $$.redrawForZoom.call($$); + }) + .on('zoomend', function () { + var event = d3.event.sourceEvent; + // if click, do nothing. otherwise, click interaction will be canceled. + if (event && startEvent.clientX === event.clientX && startEvent.clientY === event.clientY) { + return; + } + $$.redrawEventRect(); + $$.updateZoom(); + config.zoom_onzoomend.call($$.api, $$.x.orgDomain()); + }); + $$.zoom.scale = function (scale) { + return config.axis_rotated ? this.y(scale) : this.x(scale); + }; + $$.zoom.orgScaleExtent = function () { + var extent = config.zoom_extent ? config.zoom_extent : [1, 10]; + return [extent[0], Math.max($$.getMaxDataCount() / extent[1], extent[1])]; + }; + $$.zoom.updateScaleExtent = function () { + var ratio = diffDomain($$.x.orgDomain()) / diffDomain($$.orgXDomain), + extent = this.orgScaleExtent(); + this.scaleExtent([extent[0] * ratio, extent[1] * ratio]); + return this; + }; +}; +c3_chart_internal_fn.updateZoom = function () { + var $$ = this, z = $$.config.zoom_enabled ? $$.zoom : function () {}; + $$.main.select('.' + CLASS.zoomRect).call(z).on("dblclick.zoom", null); + $$.main.selectAll('.' + CLASS.eventRect).call(z).on("dblclick.zoom", null); +}; +c3_chart_internal_fn.redrawForZoom = function () { + var $$ = this, d3 = $$.d3, config = $$.config, zoom = $$.zoom, x = $$.x; + if (!config.zoom_enabled) { + return; + } + if ($$.filterTargetsToShow($$.data.targets).length === 0) { + return; + } + if (d3.event.sourceEvent.type === 'mousemove' && zoom.altDomain) { + x.domain(zoom.altDomain); + zoom.scale(x).updateScaleExtent(); + return; + } + if ($$.isCategorized() && x.orgDomain()[0] === $$.orgXDomain[0]) { + x.domain([$$.orgXDomain[0] - 1e-10, x.orgDomain()[1]]); + } + $$.redraw({ + withTransition: false, + withY: config.zoom_rescale, + withSubchart: false, + withEventRect: false, + withDimension: false + }); + if (d3.event.sourceEvent.type === 'mousemove') { + $$.cancelClick = true; + } + config.zoom_onzoom.call($$.api, x.orgDomain()); +}; |