Auto fill selection tag to link

[Neekoe]

Sorry, my English is not very good. Maybe I can't describe my problem very well. I am currently learning to make a simple plug-in. I hope to select a point, click a button, and create a selection tag. This step has been completed, but I hope to automatically link to my linkbox when creating a tag (I have an "addcustomgui_linkbox").
thank!

Bool MatrixAlignDialog::CreateLayout()
{
	SetTitle("Matrix Align"_s);

	GroupBegin(0, BFV_SCALEFIT | BFH_SCALEFIT, 2, 0, "Select Object"_s, 0);
	{
		GroupBorderSpace(5, 5, 5, 5);
		GroupBorder(BORDER_GROUP_IN);
		AddStaticText(IDC_LINKBOX1_TEXT, BFH_RIGHT | BFH_FIT, 100, 20, "Object"_s, 0);
		AddCustomGui(IDC_LINKBOX1, CUSTOMGUI_LINKBOX, String(), BFH_SCALEFIT, 250, 10, BaseContainer());
	}
	GroupEnd();

	GroupBegin(0, BFV_SCALEFIT | BFH_SCALEFIT, 3, 0, "Set Start Group"_s, 0);
	{
		GroupBorderSpace(5, 5, 5, 5);
		GroupBorder(BORDER_GROUP_IN);
		AddButton(IDC_BUTTON1, BFH_SCALEFIT, 150, 20, "Set Point"_s);
		AddStaticText(IDC_LINKBOX2_TEXT, BFH_RIGHT | BFH_FIT, 100, 20, "Start Group"_s, 0);
		AddCustomGui(IDC_LINKBOX2, CUSTOMGUI_LINKBOX, String(), BFH_SCALEFIT, 250,10, BaseContainer());
	}
	GroupEnd();

	 GroupBegin(0, BFV_SCALEFIT | BFH_SCALEFIT, 3, 0, "Set End Group"_s, 0);
	{
		GroupBorderSpace(5, 5, 5, 5);
		GroupBorder(BORDER_GROUP_IN);
		AddButton(IDC_BUTTON2, BFH_SCALEFIT, 150, 20, "Set Point"_s);
		AddStaticText(IDC_LINKBOX3_TEXT, BFH_RIGHT | BFH_FIT, 100, 20, "End Group"_s, 0);
		AddCustomGui(IDC_LINKBOX3, CUSTOMGUI_LINKBOX, String(), BFH_SCALEFIT, 250, 10, BaseContainer());
	}
	GroupEnd();

	GroupBegin(0, BFV_SCALEFIT | BFH_SCALEFIT, 3, 0, ""_s, 0);
	{
		GroupBorderSpace(5, 5, 5, 5);
		GroupBorder(BORDER_GROUP_IN);
		AddButton(IDC_BUTTON3, BFH_SCALEFIT, 150, 20, "Reset Pivot"_s);
	}
	GroupEnd();

	return true;
}
Bool MatrixAlignDialog::Command(Int32 id, const BaseContainer& msg)
{
	switch (id)
	{
	case IDC_BUTTON1:
	{
		// run the code for IDC_BUTTON1
		const Int32 commandID = 12552;
			if(IsCommandEnabled(commandID))
			{
			CallCommand(commandID);
			}
		break;
	}
	case IDC_BUTTON2:
	{
		// run the code for IDC_BUTTON2
		const Int32 commandID = 12552;
		if (IsCommandEnabled(commandID))
		{
			CallCommand(commandID);
		}
		break;
	}
	case IDC_LINKBOX2:
	{
		// get point selection tag
		break;
	}
	default:
	{
		break;
	}
	}
	return true;

[Manuel]

Hi,

perfectly clear

you need to retrieve the gadget itself to update it:

• You could store a pointer in your dialog class, pointing to your gadget. That pointer would be defined to the right value when you use AddCustomGui to add your LinkBox because that function returns the gadget.
• Or you can use FindCustomGui to retrieve the gadget of a GeDialog.

You need to create the selection tag:

• you can create the tag with a call command, but you need to find the active tag and add it to your LinkBox
• you create the tag yourself and you just need to update the link box.

I tried both methods but i would create the selection tag myself.

witch (id)
{
	case IDC_BUTTON1:
	{
		// run the code for IDC_BUTTON1
		/*
		// First solution
		const Int32 commandID = 12552;
		if (IsCommandEnabled(commandID))
		{
			CallCommand(commandID);
			LinkBoxGui* linkGui = static_cast<LinkBoxGui*>(FindCustomGui(IDC_LINKBOX2, CUSTOMGUI_LINKBOX));
			if (linkGui == nullptr)
				return false;
			BaseDocument* doc = GetActiveDocument();
			if (doc == nullptr)
				return false;
			BaseList2D* selectionTag = (BaseList2D*)doc->GetActiveTag();
			if (selectionTag == nullptr)
				return false;
			return linkGui->SetLink(selectionTag);
		}
		*/
		BaseDocument* doc = GetActiveDocument();
		if (doc == nullptr)
			return false;
		BaseObject* op = doc->GetActiveObject();
		if (op == nullptr)
			return false;
		BaseSelect* bs = ToPoly(op)->GetPointS();
		if (bs == nullptr)
			return false;
	  SelectionTag* selectionTag = (SelectionTag*)op->MakeTag(Tpointselection);
		BaseSelect* selectionFromTag = selectionTag->GetBaseSelect();
		bs->CopyTo(selectionFromTag);
		// Instead of searching for the custom gadget, a pointer could be stored in the dialog class
		// and defined when the gadget is added in the CreateLayout function.
		LinkBoxGui* linkGui = static_cast<LinkBoxGui*>(FindCustomGui(IDC_LINKBOX2, CUSTOMGUI_LINKBOX));
		if (linkGui == nullptr)
			return false;
		EventAdd();

		// Instead of returning the result of the SetLink function, one should test if it did not failed
		// and reverse the tag creation if it did.
		return linkGui->SetLink(selectionTag);

		break;
	}

	case IDC_LINKBOX2:
	{
		// get point selection tag
		LinkBoxGui* linkGui = static_cast<LinkBoxGui*>(FindCustomGui(IDC_LINKBOX2, CUSTOMGUI_LINKBOX));
		if (linkGui == nullptr)
			return false;
		BaseDocument* doc = GetActiveDocument();
		if (doc == nullptr)
			return false;
		SelectionTag* selectionTag = (SelectionTag*)linkGui->GetLink(doc);
		if (selectionTag == nullptr)
			ApplicationOutput("the field is empty");
		return true;
		break;
	}
}

Cheers,
Manuel

[Neekoe]

@m_magalhaes
Oh, no, I'm really excited. Thank you very much. I'm looking at my code in your way now

[Neekoe]

@m_magalhaes
thank you so much,you and your code is perfact