Develop Reference

LibreOffice Calc C# SDK: program to insert images into cells, stuck trying to create XGraphic

Background: I'm trying to write a program to insert an image into a cell of a spreadsheet. LibreOffice recently changed how this is done, and all the samples I could find use the old method which no longer works.
Technically I know that you can't "insert" an image into a cell and that such an image is an overlay on a DrawPage that sits on top of the spreadsheet to "decorate" it.
One of the first steps in doing this (the new way) is to create an XGraphic object which contains the image. The process is to create an XGraphicProvider and call it with MediaProperties that specify the image file URL to be loaded. I have a program that is supposed to do this but the resulting XGraphic is null. The LO SDK gives pretty much no information when you do something wrong; it just doesn't work.
Here is the code I have, with all the headers removed:
// addpic
// add picture to spreadsheet - debug version
class OpenOfficeApp {
[STAThread]
static void Main(string[] args) {
bool lreadonly;
string pqfile;
string pqURL;
string pqpic;
pqfile = "file:///D:/Documents/NSexeye/ODS%20File%20Access/"+
"addpix/addpic.ods";
pqpic = "addpic2";
pqURL = pqpic+".jpg";
lreadonly = false;
Console.WriteLine("Using: "+pqfile);
// get the desktop
XComponentContext XCC = uno.util.Bootstrap.bootstrap();
XMultiComponentFactory XMCF =
(XMultiComponentFactory)XCC.getServiceManager();
XMultiServiceFactory XMSF = (XMultiServiceFactory)XCC.getServiceManager();
XComponentLoader XCL =
(XComponentLoader)XMSF.createInstance("com.sun.star.frame.Desktop");
// open the spreadsheet
PropertyValue[] pPV = new PropertyValue[2];
pPV[0] = new PropertyValue();
pPV[0].Name = "Hidden";
pPV[0].Value = new uno.Any(true);
pPV[1] = new PropertyValue();
pPV[1].Name = "ReadOnly";
if (lreadonly) pPV[1].Value = new uno.Any(true);
else pPV[1].Value = new uno.Any(false);
XComponent XCo = XCL.loadComponentFromURL(pqfile,"_blank",0,pPV);
// create graphic object containing image
object oGP = XMCF.createInstanceWithContext(
"com.sun.star.graphic.GraphicProvider",XCC);
if (oGP == null) {
Console.WriteLine("oGP is null. Aborting.");
return;
}
XGraphicProvider XGP = (XGraphicProvider)oGP;
if (XGP == null) {
Console.WriteLine("XGP is null. Aborting.");
return;
}
pPV = new PropertyValue[1];
pPV[0] = new PropertyValue();
pPV[0].Name = "URL";
pPV[0].Value = new uno.Any(pqURL);
Console.WriteLine("Creating XGraphic containing "+pqURL);
XGraphic XG = XGP.queryGraphic(pPV);
// *** XG is null here
if (XG == null) {
Console.WriteLine("XG is null. Aborting.");
return;
}
// ... lots of stuff to be added here
// save and close the spreadsheet
XModifiable XM = (XModifiable)XCo;
XM.setModified(true);
XStorable XSt = (XStorable)XCo;
XSt.store();
XCloseable XCl = (XCloseable)XCo;
XCl.close(true);
// terminate LibreOffice
// *** I want this to not terminate it if something else is open
XDesktop XD = (XDesktop)XCL;
if (XD != null) XD.terminate();
}
}
I get a null for the XGraphic, in the place indicated in the comments. I don't know if the call to create it is failing, or if one of the earlier steps of the process are incorrect.
My goal here, in addition to getting my program working, is to create a sample program showing how to add an image to a Calc spreadsheet cell, and to manipulate such images. There are a fair number of people asking questions about this and none of the examples I've found will work. I think a good working sample will be of value.
I've spent a lot of time searching for information and code samples for this, with nothing that helps. I've tried to find ways to verify the validity of the XGraphicProvider interface with no luck. I've run out of things to try.
I'm hoping someone who knows about the LibreOffice SDK can take a look and maybe see what I'm doing wrong.
Update: I figured out what I was doing wrong: I was passing a bare filename in the "URL" property to XGraphicProvider. It has to be the same format (starting with "file:///") as the spreadsheet's file name specification.
Now I'm stuck with another property problem. The XGraphic has to be specified as a parameter to the GraphicObjectShape's Graphic property, but the setPropertyValue() function requires that it be a uno.Any type. I can't figure out how to specify an interface name like XGraphic as a uno.Any.
Here is the piece of code that won't compile, complaining that it can't convert an XGraphic to a uno.Any, in the first setPropertyValue call:
// set image XGraphic
XPropertySet XPS = (XPropertySet)XS;
XPS.setPropertyValue("Graphic",XG);
XPS.setPropertyValue("Name",new uno.Any(pqpic));
XG is an XGraphic type. Using "new uno.Any(XG)" doesn't work either, giving a similar compiler error.

After trying unsuccessfully for a few hours to get the latest LO SDK up and running, let me offer some untested ideas.
First of all, here is some working Basic code, no doubt similar to what you're translating from. The important line is oShape.Graphic = oProvider.queryGraphic(Props()).
oDoc = ThisComponent
oSheet = oDoc.CurrentController.ActiveSheet
pqURL = "file:///C:/Users/JimK/Desktop/addpic.jpg"
oProvider = createUnoService("com.sun.star.graphic.GraphicProvider")
oShape = oDoc.createInstance("com.sun.star.drawing.GraphicObjectShape")
Dim Props(0) as new com.sun.star.beans.PropertyValue
Props(0).Name= "URL"
Props(0).Value = pqURL
oShape.Graphic = oProvider.queryGraphic(Props())
oCell = oSheet.getCellByPosition(5,5)
oShape.Name = oCell.AbsoluteName + "##" + Props(0).Value
oShape.Anchor = oCell
oSheet.DrawPage.add(oShape)
'Resize
w = oShape.Graphic.Size.Width
h = oShape.Graphic.Size.Height
wcl = oCell.Size.Width
hcl = oCell.Size.Height
If w<>0 and h<>0 then
oCell.String=""
Dim Size as new com.sun.star.awt.Size
Size.Width = wcl
Size.Height = h*wcl/w
If Size.Height > hcl then
Size.Width = hcl*w/h
Size.Height = hcl
Endif
oShape.setSize(Size)
oShape.setPosition(oCell.Position)
erase oShape
Else
oShape.dispose()
Endif
Now, how to translate this to C#? It looks like you may need to explicitly specify the type. In the SDK example, there are calls like this.
xFieldProp.setPropertyValue(
"Orientation",
new uno.Any(
typeof (unoidl.com.sun.star.sheet.DataPilotFieldOrientation),
unoidl.com.sun.star.sheet.DataPilotFieldOrientation.DATA ) );
So in your case, something like this:
XPS.setPropertyValue(
"Graphic"
new uno.Any(
typeof(unoidl.com.sun.star.graphic.XGraphic),
XG));
Alternatively, follow the suggestion here: set GraphicURL, which should load the image and set Graphic for you.

How do you add thumbnails to an embed message in DSharpPlus?

I have been bashing my head against the wall for 8 hours now, trying to figure out how to add thumbnails to embeded messages. I've been following this tutorial that uses ThumbnailURL, something that doesn't exist in the context he's using it for. Instead I just have Thumbnail which does not take a string, but rather an EmbedThumbnail which I can't access at all.
var avatarEmbed = new DiscordEmbedBuilder
{
Title = "Enter the game.",
Thumbnail = ctx.Client.CurrentUser.AvatarUrl,
Color = DiscordColor.Azure,
};
Please don't send links to docs and tutorials. I've tried. I've really tried. But this just seems like an issue that is very recent and therefore resources on it would be next to none. Also the docs don't seem to have example code, making it all more frustrating.

Not sure about your version but I use the latest nightly build.
and I do it like this
var builder = new DiscordEmbedBuilder
{
Title = "Title Here",
Color = DiscordColor.Azure
};
builder.WithThumbnail(ctx.Client.CurrentUser.AvatarUrl);
but you can also do it this way
var builder = new DiscordEmbedBuilder
{
Title = "Title Here",
Color = DiscordColor.Azure,
Thumbnail = new DiscordEmbedBuilder.EmbedThumbnail
{
Url = ctx.Client.CurrentUser.AvatarUrl
}
};

Monotouch.Dialog not sizing cells appropriately with StyledMultilineElement?

I'm using Xamarin and Monotouch.Dialog to show some text comments in a UIPopoverControl. If the text being shown in a StyledMultilineElement is of any great length then the Caption and the text is being shown further down (see image below). This problem gets worse if your text string is really big, say about 20,000 characters, because you get a huge scrolling cell with no text in it at all. Simplified version of the code I'm using in my UITapGestureRecognizer below.
Am I doing something wrong?
Is there a workaround?
I did have a look at the source of the StyledMultilineElement here and am not sure if the issue is with UITableView.StringSize method.
Any known issues with UITableView.StringSize?
Thanks,
Gavin
Sample code:
RootElement root = new RootElement("Title") { UnevenRows = true };
var section = new Section("Section Heading");
// Get a value string that is approx 1,000 chars long
var value = GetLongString();
var element = new StyledMultilineElement("Caption", value, UITableViewCellStyle.Subtitle)
{
LineBreakMode = UILineBreakMode.WordWrap,
Font = UIFont.FromName("HelveticaNeue", 16f),
SubtitleFont = UIFont.FromName("HelveticaNeue", 16f)
};
section.Add(element);
root.Add(new List<Section>() { section });
var viewController = new DialogViewController(root);
var navbarController = new UINavigationController(viewController);
_contactPopup = new UIPopoverController(navbarController);
_contactPopup.PresentFromRect(cell.Bounds, cell, UIPopoverArrowDirection.Any, true);
Edit:
Found the issues page on git hub and added issue there too Git Hub Issue #225

Creating FedEx Shipping Documnents using FedEx ship service WSDL

I am in the process of integrating with the FedEx international Ship Service. But I am really stuck on one part. I am trying to create a certificate of origin using their test environment. I have followed the xml schema and have come up with the code below
private static void SetCustomInvoice(ProcessShipmentRequest request)
{
request.RequestedShipment.ShippingDocumentSpecification = new ShippingDocumentSpecification();
request.RequestedShipment.ShippingDocumentSpecification.ShippingDocumentTypes = new RequestedShippingDocumentType[1] { new RequestedShippingDocumentType() };
request.RequestedShipment.ShippingDocumentSpecification.ShippingDocumentTypes[0] = RequestedShippingDocumentType.CERTIFICATE_OF_ORIGIN;
request.RequestedShipment.ShippingDocumentSpecification.CertificateOfOrigin = new CertificateOfOriginDetail();
request.RequestedShipment.ShippingDocumentSpecification.CertificateOfOrigin.DocumentFormat = new ShippingDocumentFormat { StockType = ShippingDocumentStockType.STOCK_4X6, ImageType = ShippingDocumentImageType.PDF, ImageTypeSpecified = true, StockTypeSpecified = true };
request.RequestedShipment.SpecialServicesRequested = new ShipmentSpecialServicesRequested();
request.RequestedShipment.SpecialServicesRequested.SpecialServiceTypes = new ShipmentSpecialServiceType[1] { new ShipmentSpecialServiceType() };
request.RequestedShipment.SpecialServicesRequested.SpecialServiceTypes[0] = ShipmentSpecialServiceType.ELECTRONIC_TRADE_DOCUMENTS;
request.RequestedShipment.SpecialServicesRequested.EtdDetail = new EtdDetail();
request.RequestedShipment.SpecialServicesRequested.EtdDetail.RequestedDocumentCopies = new RequestedShippingDocumentType[1] { RequestedShippingDocumentType.CERTIFICATE_OF_ORIGIN };
request.RequestedShipment.SpecialServicesRequested.EtdDetail.DocumentReferences = new UploadDocumentReferenceDetail[1] { new UploadDocumentReferenceDetail() };
request.RequestedShipment.SpecialServicesRequested.EtdDetail.RequestedDocumentCopies[0] = RequestedShippingDocumentType.CERTIFICATE_OF_ORIGIN;
}
But I keep getting an error message back from the web service stating “Invalid Stock Type”. Even though the shipmentDocumentStockType is an enum and I am using one of the values from it. I am still getting this error. Any ideas where I might be going wrong?
Any information will be a great help. I have tried getting in touch with FedEx technical support and they were not really a great help.

This might be a little late for you but just wanted to provide an answer in case someone else might be looking for it.
I was having a similar problem but instead of the Certificate of Origin it was with the Commercial Invoice. Turns out these forms need to be printed on a full 8.5 x 11 page in PDF format, so changing the StockType from STOCK_4x6 to PAPER_LETTER fixed it for me:
From:
request.RequestedShipment.ShippingDocumentSpecification.CertificateOfOrigin.DocumentFormat = new ShippingDocumentFormat { StockType = ShippingDocumentStockType.STOCK_4X6, ImageType = ShippingDocumentImageType.PDF, ImageTypeSpecified = true, StockTypeSpecified = true };
To:
request.RequestedShipment.ShippingDocumentSpecification.CertificateOfOrigin.DocumentFormat = new ShippingDocumentFormat { StockType = ShippingDocumentStockType.PAPER_LETTER, ImageType = ShippingDocumentImageType.PDF, ImageTypeSpecified = true, StockTypeSpecified = true };
Hope this helps

Set page size using WIA (with scanner)

I'm using WIA to acquire images from a scanner with C#. I can scan the papers, but I can't set up the page size correctly, it always defaults to A4 and I need to use Letter or Legal sometimes.
I tried with the WIA_DPS_PAGE_SIZE property, but when I try to set a value, I always get an error, that the value is out of the interval (tried a lot of possible values).
I wan't to be able to use WIA_DPS_PAGE_SIZE = WIA_PAGE_AUTO (for automatic page size), but I can't find anything on the web related to this.
Does anyone know a solution? thanks!

I know this is probably too late to actually help you with that, but it may become handy for future reference. To change scanned items properties use such code:
WIA.CommonDialog wiaDlg;
WIA.Device wiaDevice;
WIA.DeviceManager wiaManager = new DeviceManager();
wiaDlg = new WIA.CommonDialog();
wiaDevice = wiaDlg.ShowSelectDevice(WiaDeviceType.ScannerDeviceType, false, false);
foreach (WIA.Item item in wiaDevice.Items)
{
StringBuilder propsbuilder = new StringBuilder();
foreach (WIA.Property itemProperty in item.Properties)
{
IProperty tempProperty;
Object tempNewProperty;
if (itemProperty.Name.Equals("Horizontal Resolution"))
{
tempNewProperty = 75;
((IProperty)itemProperty).set_Value(ref tempNewProperty);
}
else if (itemProperty.Name.Equals("Vertical Resolution"))
{
tempNewProperty = 75;
((IProperty)itemProperty).set_Value(ref tempNewProperty);
}
else if (itemProperty.Name.Equals("Horizontal Extent"))
{
tempNewProperty = 619;
((IProperty)itemProperty).set_Value(ref tempNewProperty);
}
else if (itemProperty.Name.Equals("Vertical Extent"))
{
tempNewProperty = 876;
((IProperty)itemProperty).set_Value(ref tempNewProperty);
}
}
image = (ImageFile)item.Transfer(WIA.FormatID.wiaFormatPNG);
}
This means that scanned document will be size A4 with dimensions 619 x 876.