https://www.codenameone.com/blog/rad-chatroom-part-1.html
compiler error - eclipse - ChatFormController e.g. link
super(parent);
Form f = new Form("My First Chat Room", new BorderLayout());
ChatRoomView view = new ChatRoomView(createViewModel(), f);
f.add(CENTER, view) ;
setView(f);
}
Related
I've created the splitlayout and created a new ListBox.
ListBox lb = new ListBox();
lb.addItem("foo");
lb.addItem("bar");
lb.addItem("baz");
lb.addItem("toto");
lb.addItem("tintin");
SplitLayoutPanel p = new SplitLayoutPanel();
p.addWest(new HTML("list"), 128);
p.add(new HTML("details"));
RootLayoutPanel rp = RootLayoutPanel.get();
rp.add(p);
Now how do i insert 'lb' to the west of 'p' ?
I tried 'p.addWest(lb,pixel);' instead of 'p.addWest(new HTML("list"), 128);' it looks and behaves terrible !! Please help
ListBox lb = new ListBox();
lb.addItem("foo");
lb.addItem("bar");
lb.addItem("baz");
lb.addItem("toto");
lb.addItem("tintin");
SplitLayoutPanel p = new SplitLayoutPanel();
p.addWest(lb, 100);
p.addWest(new HTML("list"), 128);
p.add(new HTML("details"));
RootLayoutPanel rp = RootLayoutPanel.get();
rp.add(p);
In SplitLayoutPanel/DockLayoutPanel you cannot add widgets after you add your center widget i.e., after you use the api splitLayoutPanel.add( Widget w ), So you have to do all the operations before hand or re layout the entire panel by clearing it first.
I'm trying to generate a dynamic survey as a PDF. The question text appears in the first cell, and the field appears in the 2nd cell. I have no problems when adding a text field or drop down field, but I cannot get a radio group to display. I am able to get a single radio button, but would like the entire group to display in the cell. Is this possible? And if so, how?
Here is a code sample of what I've tried thus far.
Table.AddCell(Question.TEXT + ":");
PdfFormField RadioGroup = PdfFormField.CreateRadioButton(ExportWriter, true);
RadioGroup.FieldName = "field" + Question.QUESTION_ID;
using (Entities _context = new Entities())
{
QuestionOptions = SURVEY.GetQuestionOptions(Question.QUESTION_ID, _context).ToList();
}
RadioCheckField Radio;
PdfFormField RadioField = null;
foreach (OPTIONS Option in QuestionOptions)
{
Radio = new RadioCheckField(ExportWriter, new Rectangle(40, 806 - count * 40, 60, 788 - count * 40), Option.OPTION_NAME, "option" + Option.OPTION_ID.ToString());
Radio.BackgroundColor = new GrayColor(0.8f);
Radio.CheckType = RadioCheckField.TYPE_CIRCLE;
RadioField = Radio.RadioField;
RadioField.SetWidget(new Rectangle(10, 20), PdfAnnotation.HIGHLIGHT_INVERT);
RadioGroup.AddKid(RadioField);
}
ExportWriter.AddAnnotation(RadioGroup);
Cell = new PdfPCell();
Events = new iTextSharp.text.pdf.events.FieldPositioningEvents(ExportWriter, RadioGroup);
Cell.CellEvent = Events;
Table.AddCell(Cell);
The issue is that when the radio buttons appear, they appear on the bottom left of the page, and not within the cell.
Thanks in advance!
I am trying to add header/footer to a PDF whose content is otherwise generated by XMLWorkerHelper. Not sure if it's a placement issue but I can't see the header/footer.
This is in an ASP.NET MVC app using iTextSharp and XmlWorker packages ver 5.4.4 from Nuget.
Code to generate PDF is as follows:
private byte[] ParseXmlToPdf(string html)
{
XhtmlToListHelper xhtmlHelper = new XhtmlToListHelper();
Document document = new Document(PageSize.A4, 30, 30, 90, 90);
MemoryStream msOutput = new MemoryStream();
PdfWriter writer = PdfWriter.GetInstance(document, msOutput);
writer.PageEvent = new TextSharpPageEventHelper();
document.Open();
var htmlContext = new HtmlPipelineContext(null);
htmlContext.SetTagFactory(Tags.GetHtmlTagProcessorFactory());
var cssResolver = XMLWorkerHelper.GetInstance().GetDefaultCssResolver(false);
cssResolver.AddCssFile(HttpContext.Server.MapPath("~/Content/themes/mytheme.css"), true);
var pipeline = new CssResolverPipeline(cssResolver, new HtmlPipeline(htmlContext, new PdfWriterPipeline(document, writer)));
var worker = new XMLWorker(pipeline, true);
var parser = new XMLParser();
parser.AddListener(worker);
using (TextReader sr = new StringReader(html))
{
parser.Parse(sr);
}
//string text = "Some Random Text";
//for (int k = 0; k < 8; ++k)
//{
// text += " " + text;
// Paragraph p = new Paragraph(text);
// p.SpacingBefore = 8f;
// document.Add(p);
//}
worker.Close();
document.Close();
return msOutput.ToArray();
}
Now instead of using these three lines
using (TextReader sr = new StringReader(html))
{
parser.Parse(sr);
}
if I comment them out and uncomment the code to add a random Paragraph of text (commented in above sample), I see the header/footer along with the random text.
What am I doing wrong?
The EventHandler is as follows:
public class TextSharpPageEventHelper : PdfPageEventHelper
{
public Image ImageHeader { get; set; }
public override void OnEndPage(PdfWriter writer, Document document)
{
float cellHeight = document.TopMargin;
Rectangle page = document.PageSize;
PdfPTable head = new PdfPTable(2);
head.TotalWidth = page.Width;
PdfPCell c = new PdfPCell(ImageHeader, true);
c.HorizontalAlignment = Element.ALIGN_RIGHT;
c.FixedHeight = cellHeight;
c.Border = PdfPCell.NO_BORDER;
head.AddCell(c);
c = new PdfPCell(new Phrase(
DateTime.UtcNow.ToString("yyyy-MM-dd HH:mm:ss") + " GMT",
new Font(Font.FontFamily.COURIER, 8)
));
c.Border = PdfPCell.TOP_BORDER | PdfPCell.RIGHT_BORDER | PdfPCell.BOTTOM_BORDER | PdfPCell.LEFT_BORDER;
c.VerticalAlignment = Element.ALIGN_BOTTOM;
c.FixedHeight = cellHeight;
head.AddCell(c);
head.WriteSelectedRows(
0, -1, // first/last row; -1 flags all write all rows
0, // left offset
// ** bottom** yPos of the table
page.Height - cellHeight + head.TotalHeight,
writer.DirectContent
);
}
}
Feeling angry and stupid for having lost more than two hours of my life to Windows 8.1! Apparently the built in PDF Reader app isn't competent enough to show 'Headers'/'Footers'. Installed Foxit Reader and opened the output and it shows the Headers allright!
I guess I should try with Adobe Reader too!!!
UPDATES:
I tried opening the generated PDF in Adobe Acrobat reader and finally saw some errors. This made me look at the HTML that I was sending to the XMLWorkerHelper more closely. The structure of the HTML had <div>s inside <table>s and that was tripping up the generated PDF. I cleaned up the HTML to ensure <table> inside <table> and thereafter the PDF came out clean in all readers.
Long story short, the code above is fine, but if you are testing for PDF's correctness, have Adobe Acrobat Reader handy at a minimum. Other readers behave unpredictably as in either not reporting errors or incorrectly rendering the PDF.
how to display two line charts on a graphview in android getting the values from database?
here is my code
gvp1=new GraphViewData[systolic.size()];
for(int i=0;i<gvp1.length;i++)
{
gvp1[i]=new GraphViewData(Double.parseDouble(systolic.get(i).toString()), Double.parseDouble(diastolic.get(i).toString()));
System.out.println("array avp1 is......."+Double.parseDouble(systolic.get(i).toString()));
}
LineGraphView graphView = new LineGraphView(
this
, "BP Graph"
);
graphView.addSeries(new GraphViewSeries(gvp1));
System.out.println("in graphview......"+gvp1);
/*
graphView.addSeries(new GraphViewSeries(new GraphViewData[] {
new GraphViewData(1, 2.0d)
}));*/
/*
ViewHolder v = null;
v = new ViewHolder();
convertView=null;
*/
setContentView(graphView);
// setContentView(R.layout.demo11);
ImageView iv = new ImageView(this);
iv.setImageResource(R.drawable.graph_header);
graphView.addView(iv);
}
this is how i am getting values from database to graph. but i want another line graph to be plotted on same scale.
any working code will be a great help..
Just call addSeries putting the other data of line graph.
See my implementation:
GraphViewSeries line1Series = new GraphViewSeries("LINE ONE", new GraphViewSeriesStyle(Color.GREEN, 3), new GraphViewData[] { new GraphViewData(0, 0) }); // put an complete array
GraphViewSeries line2Series = new GraphViewSeries("LINE TWO", new GraphViewSeriesStyle(Color.BLUE, 3), new GraphViewData[] { new GraphViewData(0, 0) }); // put an complete array
graphView = new LineGraphView(this, "Graph with 2 lines");
graphView.addSeries(line1Series);
graphView.addSeries(line2Series);
graphView.setShowLegend(true);
graphView.setLegendAlign(LegendAlign.TOP);
graphView.setGraphViewStyle(new GraphViewStyle(Color.DKGRAY, Color.DKGRAY, Color.LTGRAY));
graphView.redrawAll();
I hope this can help you.
I want to load details of a user's when clicking their names . So I create a Grid Layout with two columns left hand side is standalone and right hand side data will be loaded based on clicking their names .
JAVA CODE
Display display = PlatformUI.createDisplay();
Shell shell = new Shell(display);
shell.setSize(400, 400);
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = 2;
shell.setLayout(gridLayout);
shell.setBackground(new Color(display, 255, 255, 255));
final Table table = new Table(shell, SWT.VIRTUAL);
table.setLayout(new GridLayout());
table.setSize(400, 400);
final TableColumn column = new TableColumn(table, SWT.LEFT);
column.setWidth(150);
column.setText("Runnable Services");
table.setItemCount(5);
final String[] services = new String[] { "Franklin", "Christian",
"Richard Levi",
"Dale Steyn", "Chris Gayle" };
table.addListener(SWT.SetData, new Listener() {
public void handleEvent(Event event) {
TableItem item = (TableItem) event.item;
int index = table.indexOf(item);
item.setText(services[index]);
System.out.println(item.getText());
}
});
table.addSelectionListener(new OnClickListener());
alignCenter(shell, display);
shell.open();
I added a selection listener on a table . When click the players I add their details on SelectionListener's widget Selected method .
JAVA CODE
Composite parent = new Composite(table.getParent(), SWT.NONE);
parent.setLayout(new GridLayout(2, false));
Label label = new Label(parent, SWT.NULL);
label.setText("Name :");
System.out.println(table.getSelection()[0].getText());
Text text = new Text(parent, SWT.BORDER);
text.setText(table.getSelection()[0].getText());
text.setLayoutData(new GridData(GridData.FILL_HORIZONTAL
| GridData.GRAB_HORIZONTAL));
ViewActionDelegate.resize(200, true, 20, table.getShell());
If i did like this on click action each time data will be appended to existing shell . How can I clear the righ hand side details ? . I posted a image below .
How can i do this ? .
Finally I found the answer .
Issue :
I append new elements into already created composite .
Solution:
Clear elements from existing composite before drawing new elements .
Java Code :
if ((composite != null) && (!composite.isDisposed())) {
Control[] children = composite2.getChildren();
for(Control ch : children){
ch.dispose();
}
}