[pve-devel] [PATCH manager 4/7] add runningchart widget
Dominik Csapak
d.csapak at proxmox.com
Tue Nov 22 12:32:12 CET 2016
this adds a new component 'runningchart', which is a simple linegraph
you define a timeFrame (default 5*60 seconds), and you regularly add
datapoints to it, and the graph shows the last timeFrame seconds of it
Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
---
www/manager6/Makefile | 1 +
www/manager6/panel/RunningChart.js | 163 +++++++++++++++++++++++++++++++++++++
2 files changed, 164 insertions(+)
create mode 100644 www/manager6/panel/RunningChart.js
diff --git a/www/manager6/Makefile b/www/manager6/Makefile
index da96b7c..1263cc9 100644
--- a/www/manager6/Makefile
+++ b/www/manager6/Makefile
@@ -75,6 +75,7 @@ JSSRC= \
panel/GuestStatusView.js \
panel/RRDView.js \
panel/RRDChart.js \
+ panel/RunningChart.js \
panel/InfoWidget.js \
panel/TemplateStatusView.js \
panel/InputPanel.js \
diff --git a/www/manager6/panel/RunningChart.js b/www/manager6/panel/RunningChart.js
new file mode 100644
index 0000000..37473fc
--- /dev/null
+++ b/www/manager6/panel/RunningChart.js
@@ -0,0 +1,163 @@
+/*
+ * This is a running chart widget
+ * you add time datapoints to it,
+ * and we only show the last x of it
+ * used for ceph performance charts
+ */
+Ext.define('PVE.widget.RunningChart', {
+ extend: 'Ext.container.Container',
+ alias: 'widget.pveRunningChart',
+
+ layout: {
+ type: 'hbox',
+ align: 'center'
+ },
+ items: [
+ {
+ width: 80,
+ xtype: 'box',
+ itemId: 'title',
+ data: {
+ title: ''
+ },
+ tpl: '<h3>{title}:</h3>'
+ },
+ {
+ flex: 1,
+ xtype: 'cartesian',
+ height: '100%',
+ itemId: 'chart',
+ border: false,
+ axes: [
+ {
+ type: 'numeric',
+ position: 'left',
+ hidden: true,
+ minimum: 0
+ },
+ {
+ type: 'numeric',
+ position: 'bottom',
+ hidden: true
+ }
+ ],
+
+ store: {
+ data: {}
+ },
+
+ sprites: [{
+ id: 'valueSprite',
+ type: 'text',
+ text: '0 B/s',
+ textAlign: 'end',
+ textBaseline: 'middle',
+ fontSize: 14
+ }],
+
+ series: [{
+ type: 'line',
+ xField: 'time',
+ yField: 'val',
+ fill: 'true',
+ colors: ['#cfcfcf'],
+ tooltip: {
+ trackMouse: true,
+ renderer: function( tooltip, record, ctx) {
+ var me = this.getChart();
+ var date = new Date(record.data.time);
+ var value = me.up().renderer(record.data.val);
+ tooltip.setHtml(
+ me.up().title + ': ' + value + '<br />' +
+ Ext.Date.format(date, 'H:i:s')
+ );
+ }
+ },
+ style: {
+ lineWidth: 1.5,
+ opacity: 0.60
+ },
+ marker: {
+ opacity: 0,
+ scaling: 0.01,
+ fx: {
+ duration: 200,
+ easing: 'easeOut'
+ }
+ },
+ highlightCfg: {
+ opacity: 1,
+ scaling: 1.5
+ }
+ }]
+ }
+ ],
+
+ // the renderer for the tooltip and last value,
+ // default just the value
+ renderer: Ext.identityFn,
+
+ // show the last x seconds
+ // default is 5 minutes
+ timeFrame: 5*60,
+
+ addDataPoint: function(value, time) {
+ var me = this.chart;
+ var panel = me.up();
+ var now = new Date();
+ var begin = new Date(now.getTime() - (1000*panel.timeFrame));
+
+ me.store.add({
+ time: time || now.getTime(),
+ val: value || 0
+ });
+
+ // delete all old records when we have 20 times more datapoints
+ // than seconds in our timeframe (so even a subsecond graph does
+ // not trigger this often)
+ //
+ // records in the store do not take much space, but like this,
+ // we prevent a memory leak when someone has the site open for a long time
+ // with minimal graphical glitches
+ if (me.store.count() > panel.timeFrame * 20) {
+ var oldData = me.store.getData().createFiltered(function(item) {
+ return item.data.time < begin.getTime();
+ });
+
+ me.store.remove(oldData.getRange());
+ }
+
+ me.timeaxis.setMinimum(begin.getTime());
+ me.timeaxis.setMaximum(now.getTime());
+ me.valuesprite.setText(panel.renderer(value || 0).toString());
+ me.valuesprite.setAttributes({
+ x: me.getWidth() - 15,
+ y: me.getHeight()/2
+ }, true);
+ me.redraw();
+ },
+
+ setTitle: function(title) {
+ this.title = title;
+ var me = this.getComponent('title');
+ me.update({title: title});
+ },
+
+ initComponent: function(){
+ var me = this;
+ me.callParent();
+
+ if (me.title) {
+ me.getComponent('title').update({title: me.title});
+ }
+ me.chart = me.getComponent('chart');
+ me.chart.timeaxis = me.chart.getAxes()[1];
+ me.chart.valuesprite = me.chart.getSurface('chart').get('valueSprite');
+ if (me.color) {
+ me.chart.series[0].setStyle({
+ fill: me.color,
+ stroke: me.color
+ });
+ }
+ }
+});
--
2.1.4
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