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custom figures [message #192222]

Thu, 12 June 2008 00:40

Eclipse User

hello!

I've some questions concerning custom figures:

1)Is it possible to create figures that consists of lines that are
straight and round like a curve. In particular, I'm referring to figures
we created with a sketch tool:
a)input port(http://www.scribd.com/doc/3321556/in), and
b)output port (http://www.scribd.com/doc/3321554/out).

(I know the images are tiny, but if you doubleclick them it'll be ok.)

2)And what about a comp figure, as at
(http://www.scribd.com/doc/3321555/comp)?
3)Please, last but not least take a look at
((http://www.scribd.com/doc/3321602/pipeline).
This shows a pipeline example.

For 1)a)1)b), (see the links above) it is important that the Labels are
placed above in the Center of the figures; I have checked out the Taipan
Example, as there are interesting images, but the labels are always below
or besides the element.

What is further important for me is to be able to modify from code the
Label (for accessing its color, font, size...) of each element, its
foreground and background color.

Any help is appreciated!

Regards,
Amro

Re: custom figures [message #192286 is a reply to message #192222]

Thu, 12 June 2008 07:38

Eclipse User

Hello Amro Al-Akkad,

> 1)Is it possible to create figures that consists of lines that are
You can always create your own figure (subclass of Shape) and use outlineShape(Graphics
graphics) method for painting your shapes (it is possible to draw arcs there).

> 2)And what about a comp figure, as at
Again. you can paint everything inside outlineShape/fillShape methods or
use image to represent diagram element.

> 3)Please, last but not least take a look at
Looks like a composition of custom figures + custom figures used for labels..

> For 1)a)1)b), (see the links above) it is important that the Labels
> are placed above in the Center of the figures; I have checked out the
You can place any label upon your custom figure using layouts (StackLayout).
See http://www.eclipsecon.org/2008/index.php?page=sub/&id=33 7 as an example
- "subnet" figure used in this presentation is a composite figure containing
SVG image and label displayed upon this image.

-----------------
Alex Shatalin

Re: custom figures + runtime exception [message #192705 is a reply to message #192286]

Sun, 15 June 2008 05:10

Eclipse User

hi Alex!

thanks that has helped already a lot.
Both of the port figures--like (http://www.scribd.com/doc/3321556/in)-- I
like to draw, consist of three lines and one arc. So, the best thing is
to use a Path.
It worked fine as a SWT Application-- to draw and fill the figure.

However I received an exception when trying it with GMF:
(start)
!ENTRY org.eclipse.ui 4 0 2008-06-15 10:26:53.281
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable
(java.lang.RuntimeException: The class: class
org.eclipse.gmf.runtime.draw2d.ui.render.internal.graphics.R enderedMapModeGraphics
has not implemented this new graphics function)
at org.eclipse.swt.SWT.error(SWT.java:3563)
at org.eclipse.swt.SWT.error(SWT.java:3481)
at
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:132)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:3659)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3296)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.jav a:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:22 19)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:289)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at
org.eclipse.ui.internal.ide.application.IDEApplication.start (IDEApplication.java:106)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.java:169)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher .runApplication(EclipseAppLauncher.java:106)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher .start(EclipseAppLauncher.java:76)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:363)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:176)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java: 508)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
at org.eclipse.equinox.launcher.Main.main(Main.java:1148)
Caused by: java.lang.RuntimeException: The class: class
org.eclipse.gmf.runtime.draw2d.ui.render.internal.graphics.R enderedMapModeGraphics
has not implemented this new graphics function
at org.eclipse.draw2d.Graphics.subclassFunctionMission(Graphics .java:897)
at org.eclipse.draw2d.Graphics.drawPath(Graphics.java:202)
(...)

The graphics object (org.eclipse.draw2d.Graphics) expects for its methods:
'drawPath' and 'fillPath' not the 'org.eclipse.draw2d.graph.Path', but
'org.eclipse.swt.graphics.Path'--the same I've used for my SWT
application.
Changing the fore- and background color is quite important for us.
So, I need to use a path, and not 3 polylines in order to fill the inner
of the figure.
As far as I understood for the GraphicsRenderer this functionality has not
already been implemented. Or, do I misunderstand?

Any help is appreciated!

Reagards,
Amro

Re: custom figures + runtime exception [message #192786 is a reply to message #192705]

Mon, 16 June 2008 05:59

Eclipse User

Hello Amro Al-Akkad,

You are right - currently used version of RenderedMapModeGraphics has no
implementation of 'drawPath' and 'fillPath' method. I suggest you using draw/fill
arc/polyline/polygon instead.

-----------------
Alex Shatalin

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