Eclipse Community Forums: GEF » Marquee Tool Help

Home » Eclipse Projects » GEF » Marquee Tool Help(Editing the functionality of the marquee inside a container shape)

Show: Today's Messages :: Show Polls :: Message Navigator

Marquee Tool Help [message #1708239]

Mon, 14 September 2015 20:56

Robert Grant

Messages: 4
Registered: August 2015

Junior Member

I am trying to change the functionality of my diagram so that I am more easily able to use the marquee tool. I have a large container shape in which I am placing objects in. When the cursor is outside the container shape but inside the diagram, the marquee tool is automatically enabled when I click and drag (seen in the first image). But whenever the cursor is inside the container shape and I click and drag, it will not allow the marquee tool to work unless clicked on in the palette (seen in the second image). I am wondering if there is a way to use the marquee tool on the container shape even when the selector tool is being used. Or enable the marquee tool when I click inside the large container shape.

I am currently using Graphiti to try and complete this. The Graphiti task is using AbstractTool when dealing with the marquee tool inside of the diagram. If I retrieve the PaletteRoot using getPaletteRoot(), I am able to access more information about the GFMarqueToolEntry, but I can't change any of the properties. Is this possible to do using GEF?

index.php/fa/23256/0/

Attachment: pic1.png
(Size: 20.70KB, Downloaded 410 times)
Attachment: pic2.png
(Size: 21.05KB, Downloaded 384 times)

[Updated on: Mon, 14 September 2015 20:57]

Report message to a moderator

Re: Marquee Tool Help [message #1708539 is a reply to message #1708239]

Thu, 17 September 2015 11:00

Alexander Nyssen

Messages: 244
Registered: July 2009
Location: Lünen

Senior Member

I do not know how Graphiti handles the registration of tools, but in GEF the list of tools (and the current active tool) is hold by the EditDomain. A palette entry usually sets the active tool in the domain. You will have to find a way (within Graphiti) to change the palette entry so that it creates and sets a customized MarqueeSelectionTool, where you could overwrite handleButtonDown(int) to check whether a marquee drag is to be started or not.

Report message to a moderator

Re: Marquee Tool Help [message #1723363 is a reply to message #1708539]

Mon, 15 February 2016 07:23

swaroop shastri

Messages: 2
Registered: February 2016
Location: Bangalore

Junior Member

Hi,

Is there any tutorial , which describes , how to add Marquee tool in GEF. How the event and listeners work. I am unable to find out any such example on web. Alexander could you please help me with this.

Regards,
Swaroop Shastri
ssroop74@gmail.com

Report message to a moderator

Re: Marquee Tool Help [message #1723443 is a reply to message #1723363]

Mon, 15 February 2016 17:42

Alexander Nyssen

Messages: 244
Registered: July 2009
Location: Lünen

Senior Member

No, there is no direct tutorial related to MarqueeTool, but the code is pretty straight forward. The marquee tool is created through a MarqueeToolEntry. The palette entries in turn are created through a factory. You can e.g. take a look at the FlowExample, where the FlowEditorPaletteFactory is the respective implementation.

In either case, before you dig into the details, I recommend that you consult our reference documentation, so that concepts like domain, tools, etc. (and the related responsibilities) are clear.

Report message to a moderator

Previous Topic:	automation testing
Next Topic:	DirectedGraph: nodes out of order

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Fri Apr 26 09:25:02 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter