QCAD Project

[cjh]

Hi!

I recently posted an outline of my intentions in the new user area.
http://www.qcad.org/rsforum/viewtopic.php?f=55&t=4325

I have a question on receiving events from a UI created in Qt Designer.
I would like to use the search button to modify a listView's query as seen in this image.



Currently I have this dialog box pop up when I run a script from a menu item.
How can I read the text in the search box when a user presses the Search button?

Thanks for any help.

Connor

[cjh]

I've been reading about signals/slots in Qt.
To handle the "Search" button on-click event, you must connect the signal to a slot.
In this case, I connect an in-line function to the on-click signal.

The following code can be used:

var button = dialog.findChild("pushButton");
	button.clicked.connect(
		function() {
			appWin.handleUserMessage("button pressed");
		});

When the user clicks the search button, "button pressed" is printed in the command history in QCAD.

[cjh]

I'm trying to set up a filter on my tableView shown above.
It looks like I should be using QSortFilterSqlQueryModel() to connect my text box's textChanged signal to the filter function available in QSortFilterSqlQueryModel.

When I try this:

Code: Select all

var partsProxy = new QSortFilterSqlQueryModel();

there is an error "can't find variable" when I try to run the script.

QSortFilterSqlQueryModel is included in QtCore, but it doesn't seem to have made it to QCAD.
How can I include the QSortFilterSqlQueryModel.h that exists in a full installation of Qt?

Please let me know if I'm looking at this incorrectly.

****EDIT****
I'm using a QSqlTableModel as a workaround to a QSortFilterSqlQueryModel.

As a side note, is there a way to call the Synchronize Attributes command from a script?
This will make my Title Block update much cleaner.
I believe it's hidden in qcadproscripts.dll and I can't figure out how to call it.

Connor

[andrew]

As a side note, is there a way to call the Synchronize Attributes command from a script?

You should be able to trigger the tool using:

var guiAction = RGuiAction.getByScriptFile("scripts/Pro/Block/Attribute/AttributeSynchronization/AttributeSynchronization.js");
if (!isNull(guiAction)) {
    guiAction.slotTrigger();
}

Note that the file "scripts/Pro/Block/Attribute/AttributeSynchronization/AttributeSynchronization.js" is embedded as resource in the QCAD Professional plugin (qcadproscripts.dll).

[cjh]

Thanks andrew.

Is it possible to see a list of the available functions provided by qcadproscripts.dll?

I'm writing a script to handle batch operations on all drawings in a folder.
I want to use it to change an attribute (Total Number of Pages) in a title block.
Is there a change attribute operation?

I'll keep digging!

Connor

[andrew]

Is it possible to see a list of the available functions provided by qcadproscripts.dll?

The QCAD Pro tools should not be considered part of the API (even tough you can trigger individual tools as described above).
You can get a list of all tools, including QCAD Pro tools under Help > About.. > Scripts

Is there a change attribute operation?

You'd typically proceed like this:
- query the block reference entity (RDocument::getBlockId(), RDocument::queryBlockReferences())
- query the child entities (=block attributes) of the block reference (RDocument::queryChildEntities)
- the child entities are of type RAttributeEntity, so you can find the desired attributes based on its tag
- change attribute as desired, as usual in an operation:

var op = new RAddObjectOperation(attribute);
di.applyOperation(op);

[cjh]

Right. I go through the first three steps as outlined.
BlockListAttributes.js was particularly helpful here.

When I run the following, attribute value changes do not show up until I select the edited block.
These changes are not undoable.
Should I be using a Modify Operation on the attributes that already exist in the block?

var attVal; // attribute value from attMap
var attributeIds = doc.queryChildEntities(bRefID, RS.EntityAttribute);
var op = new RAddObjectsOperation();
for (var i=0; i<attributeIds.length; i++) {
	var attributeId = attributeIds;
	var attribute = doc.queryEntityDirect(attributeId);
	if (attribute.isNull()) {
		continue;
	}
	attVal = att_val_Map.get(attribute.getTag(), null);
	if (isNull(attVal)) {
		//skip attributes wihtout values defined in the map
		continue;
	} 
     // have valid attribute + value pair
	attribute.setText(attVal);
	op.addObject(attribute);
}
di.applyOperation(op);

[andrew]

queryEntityDirect should only be used to speed up performance when using an entity to retrieve data (read-only).

Entities that are modified and added to operations should be queried using queryEntity instead. This ensures that the modifications are then made on a clone of the entity and when the operation is applied, the difference can be recorded for undo / redo.

[cjh]

AWESOME!

Thanks for the quick reply - that was it!
The whole operation process makes a lot more sense now.
Once I clean up the code for this I'll post it for others.

Next order of business will be producing a Bill of Materials from the blocks in a drawing.

Does anyone have any suggestions on how to store the part information for the drawing?
I will be pulling it from a database and formatting it within the drawing.

I will probably make a new drawing tool "Table" that draws a table of the items.

Connor

[andrew]

Does anyone have any suggestions on how to store the part information for the drawing?

Custom properties might come in handy to attach custom information to objects (i.e. entities, layers, blocks).

An example for adding a custom property to a layer can be found at:
https://github.com/qcad/qcad/tree/maste ... omProperty

Functions related to custom properties are part of the RObject class.

[andrew]

Connor: I've split your new question into a new topic at:
http://www.qcad.org/rsforum/viewtopic.php?f=33&t=4340