Adds Grid3D display plugin.

[agalbachicar]

Part of #332

Removes the Grid3D plugin from the Display plugin (it does not exist in ign-gui3) and keeps the same configuration as before.

Note: we can see the plugin listed to the side which is different from before.

[francocipollone]

LGTM

Note: we can see the plugin listed to the side which is different from before.

Probably we could add something like:

    <property type="bool" key="showTitleBar">false</property>
    <property type="bool" key="showCollapseButton">false</property>
    <property type="bool" key="showDockButton">false</property>
    <property type="bool" key="showCloseButton">false</property>

to avoid seeing it in the right panel if needed

[agalbachicar]

Probably we could add something like:

    <property type="bool" key="showTitleBar">false</property>
    <property type="bool" key="showCollapseButton">false</property>
    <property type="bool" key="showDockButton">false</property>
    <property type="bool" key="showCloseButton">false</property>

to avoid seeing it in the right panel if needed

---

I checked the code before submitting this PR but it does not parse those properties. I also tried to make sure I was correct and indeed, it remained visible.

[francocipollone]

Probably we could add something like:

    <property type="bool" key="showTitleBar">false</property>
    <property type="bool" key="showCollapseButton">false</property>
    <property type="bool" key="showDockButton">false</property>
    <property type="bool" key="showCloseButton">false</property>

to avoid seeing it in the right panel if needed

I checked the code before submitting this PR but it does not parse those properties. I also tried to make sure I was correct and indeed, it remained visible.

Here are other general properties you can add to "every widget".

Probably you missed the <ignition-gui> node:

<plugin filename="Grid3D">
  <ignition-gui>
    <property type="bool" key="showTitleBar">false</property>
    <property type="bool" key="showCollapseButton">false</property>
    <property type="bool" key="showDockButton">false</property>
    <property type="bool" key="showCloseButton">false</property>
  </ignition-gui>
  <engine>ogre</engine>
  <scene>scene</scene>
  <insert>
    <cell_count>250</cell_count>
    <vertical_cell_count>0</vertical_cell_count>
    <cell_length>1.000000</cell_length>
    <pose>0 0 0 0 0 0</pose>
    <color>0.7 0.7 0.7 0.3</color>
  </insert>
</plugin>

I tried it in your branch and it works, however, a white space is left so it isn't entirely useful because if you have a plugin below you see an empty space that you can not reduce in the middle.

So I would say go and merge it as it is.

[agalbachicar]

Oh I missed the ignition-gui -- thanks!

[agalbachicar]

@scpeters : @francocipollone noticed here that when hiding the plugin the pane is still there (I believe it is a QML Pane, please correct me if I'm wrong) as a vertical white space. Do you think it could be a bug or is it a configuration issue on our side?

[francocipollone]

@scpeters : @francocipollone noticed here that when hiding the plugin the pane is still there (I believe it is a QML Pane, please correct me if I'm wrong) as a vertical white space. Do you think it could be a bug or is it a configuration issue on our side?

Technically we were hiding only the dock, close, etc buttons, and the title bar, so it makes sense that the panel itself isn't hidden. I would say that probably there may be another property to in fact hide the panel.(to reach at start the same status it has when you hit the close button )