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BIRT CHART [message #902446]

Fri, 17 August 2012 15:30

SP Pandey

Messages: 4
Registered: August 2012

Junior Member

Hi All ,
I need some help urgently.
I am trying to give as much info. regarding the prob. as possible.

Requirement :
Display tooltip when cursor goes over bars in the chart ( MouseOver event).

ENVIRONMENT :
SWT and BIRT on Eclipse Indigo..Build id: 20110615-0604

Conventional Strategy:
The Plugin classes provide methods like setToolTipText ("My Tooltip").
These methods can be called on the classes to get the tooltip functionality.
For eg. Canvas, Composite etc.

Challenge:
CLASS org.eclipse.birt.chart.model.type.BarSeries does not provide any such direct method.

Alternate approach:
Attach a trigger (Listeners) to BarSeries :
Code used:
Trigger trigger = TriggerImpl.create(TriggerCondition.ONMOUSEOVER_LITERAL,
ActionImpl.create (
ActionType.SHOW_TOOLTIP_LITERAL,
TooltipValueImpl.create (100, "Boomer")));

BarSeries bs2 = (BarSeries) BarSeriesImpl.create ();
bs1.getTriggers ().add (trigger);

The trigger attached on bar is being overshadowed by the features of ChartCanvas.Thus we do not get the tool tip when the cursor goes over bar.
ChartCanvas is an implementation of Canvas.It is being used to present the chart as an image.

It is very urgent as I am through with other implementations, but I am stuck with the mouse over.
I have attached two important files which I think is sufficient.If anything else is required please do not hesitate to ask for that.

Many many many thanks in advance....

Attachment: DemoChartView.java
(Size: 11.06KB, Downloaded 237 times)
Attachment: ChartCanvas.java
(Size: 4.16KB, Downloaded 224 times)

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Re: BIRT CHART [message #902559 is a reply to message #902446]

Sat, 18 August 2012 12:27

SP Pandey

Messages: 4
Registered: August 2012

Junior Member

Help required urgently on this topic....

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Re: BIRT CHART [message #902714 is a reply to message #902559]

Mon, 20 August 2012 05:27

SP Pandey

Messages: 4
Registered: August 2012

Junior Member

Hi friends.... any clue any idea... most welcome...
plz reply..
Is there any other way to get the answer within less time.

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Re: BIRT CHART [message #902860 is a reply to message #902714]

Mon, 20 August 2012 18:27

Jason Weathersby

Messages: 9167
Registered: July 2009

Senior Member

Do you have a simple project that you can post that shows the issue?
What jars are you including in the build path? Also why are you writing
the image to a file? Why not use:

Rectangle d = this.getClientArea( );
Image imgChart = new Image( this.getDisplay( ), d );
GC gcImage = new GC( imgChart );
idr.setProperty( IDeviceRenderer.GRAPHICS_CONTEXT, gcImage );

Jason

On 8/20/2012 1:27 AM, SP Pandey wrote:
> Hi friends.... any clue any idea... most welcome...
> plz reply..
> Is there any other way to get the answer within less time.

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