When using JLabel, is there a way to use HTML and method call together?
For example:
JLabel speedLabel = new JLabel("<html><b>Speed: </b></html>" + plane.getSpeed());
This doesn't work.
It only shows Speed: and ignores the rest.
Try to change your code to this:
JLabel speedLabel = new JLabel("<html><b>Speed: " + plane.getSpeed() + " </b></html>");
The text, or in your case the airplane speed, that is probably a double, must be in between the <html> and </html> tags, to be recognized.
it is discarding the values after html close tag if you something like this it will work JLabel speedLabel = new JLabel("<html><b>Speed: " + plane.getSpeed() + "</b></html>");
Related
I am trying to set a couple newlines in a java swing window, but for some reason everything is printed on one line.
This is my code:
private JLabel lblOutput;
guess = 79;
numberOfTries = 5;
message = guess + " is correct. " + "\n" + "Let's play again! " + "\n" + "And it only took you " + numberOfTries + " number of tries!";
lblOutput.setText(message);
The output of the above is:
79 is correct. Let's play again! And it only took you 5 number of tries!
What am I doing wrong?
A label is designed to only display a single line of text.
However, you can use simple HTML to split the text on multiple lines:
label.setText("<html>line1<br>line2</html>");
If lblOutput is a JLabel, it only accepts a single line of text.
You can try using HTML formatting to get around it.
I am trying to produce several reports (i.e. N PPTX files) based on different inputs/for different users on the same PPTX template I created.
I have several preformatted XSLFTextShape on the PPTX template that contains a single XSLFTextParagraph already formatted (i.e. both the shape and the text). Each shape contains a particular placeholder that I need to substitute with a dynimic value. I have this value in a Map (placeholder,newValue). I am successful in updating the placeholder with the new value using:
textShape.clearText();
XSLFTextRun run = paragraph.addNewTextRun();
run.setText(newText);
So, when I produce the PPTX in output the text is updated but font color, font formatting, font size are changed compared to those I defined in the template. How can I keep the same formatting?
Any solutions to simply change the text while keeping original formatting?
Thanks in advance!
For everybody which may be interested in this topic in the future - I post the solution (working if one TextBox has a single Paragraph). This solution loops on all text boxes and in the case one contain one of the vales specified in the Placeholder->newValue map, it will update it maintaining the formatting.
public static void updateTextBoxesWithDesiredValues(XMLSlideShow ppt, Map<String, String> placeHolderDefinedValue) {
logger.info("ElapsedTime: " + tM.getTimeElapsedReadableFormat() + " ########## Updating single text box content...");
List<XSLFSlide> allSlides = ppt.getSlides();
int updatedElements = 0;
for (XSLFSlide currentSlide : allSlides) {
for (XSLFShape shape : currentSlide.getShapes()) {
if (shape instanceof XSLFTextShape) {
XSLFTextShape textBox = (XSLFTextShape) shape;
String elementTextContent = textBox.getText();
for (Object key : placeHolderDefinedValue.keySet()) {
if (elementTextContent.equals(key)) {
List<XSLFTextParagraph> textBoxParagraphs = textBox.getTextParagraphs();
List<XSLFTextRun> textBoxParagraphTextRuns = textBoxParagraphs.get(0).getTextRuns();
//System.out.println("########################## check paragraph number in textbox: " + textBoxParagraphs.size() + " - TextRuns: " + textBoxParagraphs.get(0).getTextRuns().size());
logger.info("ElapsedTime: " + tM.getTimeElapsedReadableFormat() + updatedElements + ") Updating: " + textBox.getText() + " --> " + placeHolderDefinedValue.get(key));
for (XSLFTextRun r : textBoxParagraphTextRuns) {
r.setText(placeHolderDefinedValue.get(key));
}
updatedElements++;
//break;
}
}
}
}
}
logger.info("ElapsedTime: " + tM.getTimeElapsedReadableFormat() + " Total Text Element Content Updated: " + updatedElements + " #########################");
}
It's kind of horrible - but yeah there's a reason they called it "POI".
Here's my approach to "only reset text" of an existing XSLFTextShape (that must have at least some text pre-set!):
textShape.getTextParagraphs().get(0).getTextRuns().get(0).setText(text);
for (int i = 1; i < textShape.getTextParagraphs().get(0).getTextRuns().size(); i++) {
textShape.getTextParagraphs().get(0).getTextRuns().get(i).setText("");
}
for (int i = 1; i < textShape.getTextParagraphs().size(); i++) {
textShape.getTextParagraphs().get(i).getTextRuns().stream().filter(tr -> !tr.getRawText().equals("\n")).forEach(tr -> tr.setText(""));
}
It will replace all existing text(paragraphs/runs) with "empty" text, but linebreaks can't be replaced for some reason. So this might leave you with some trailing lines - as they usually(!) are transparent this won't really hurt a lot.
.clearText / removing paragraphs either destoyed the formatting for me, or didn't work. Trying to reset the style (fontColor, fontFamily, fontSize, isBold, isItalit, ...) didn't result in satisfying results :(
I'm looking for an easy way to make some letters in a label bold.
I have a string like this:
String r = "y = "+output0+" "+output1+"sin(x) "+output2+"cos(x)";
and a label:
Label s = new Label(r);
and I need to make the "y" and "sin(x), cos(x)" bold. I tried using HTML, but it didn't work (maybe i was using it wrong). If I set font for that label, then the whole label is bold (including those outputs) which is not what I need.
You can use html style in JLabels and in some other Java components. If you start your text with <html> and end it with </html>, the html code in your JLabel will be rendered.
This should resolve your issue:
JLabel myLabel = new JLabel();
// The following line is required to make this JLabel's text not bold as JLabel's text is bold be default.
myLabel.setFont(myLabel.getFont().deriveFont(Font.PLAIN));
myLabel.setText("<html><strong>y</strong> = " + output0 + " " + output1 + "<strong>sin(x)</strong> " + output2 + "<strong>cos(x)</strong></html>");
Try using HTML (you have to start the string with <html> and end it with </html>):
new Jlabel("<html>Normal text. <strong>This is bold.</strong></html>")
Explanation! <html> tells Java to render HTML (Hyper Text Markup Language), and <strong> tells HTML that the text inside is of strong importance, normally represented in bold.
I have a TreeEditor and some text in its first column. I need to append some text to it using a label or string. In addition, I want to change the color of the appended string to green. I tried to do it with this code, but it isn't working:
Label label = new Label(this.tree ,SWT.RIGHT);
label.setFont(new Font(getSite().getShell().getDisplay(), ("Hello"), 18,
SWT.BOLD));
label.setText("hello:));
label.pack();
treeItem.setText(1, hi + " " + label.getText());
How could I accomplish this?
you might want to look at org.eclipse.jface.viewers.DecoratingStyledCellLabelProvider
I understand you can make a new line using <html> <br> </html> but when I add a variable (is a string type) to the text of a label this command doesn't work any more.
label.setText("blahblahblah" + variable + "<html><br>blahblahblah</html>");
I need it to output:
blahblahblah
blahblahblah
You need to have the <html> tag as the first thing in your String:
label.setText("<html>blahblahblah" + variable + "<br>blahblahblah</html>");
It should be:
label.setText("<html>blahblahblah" + variable + "<br>blahblahblah</html>");