I want to override the background color of the TreeGrid object (and other default styles). But it doesn't let me change the default css.
TreeGrid grid = new TreeGrid();
grid.removeStyleName("listGrid");
OR
TreeGrid grid = new TreeGrid();
grid.removeStyleName(grid.getStyleName());
This code doesnt seem to work. The stylename remains the same.
I think I'm missing something but I cant seem to figure it out. Also if I set another stylename for the widget it keeps the default stylename.
Thanks in advance!
I found the answer myself.
Looks like there are various solutions. But this one was the easiest for me.
There are different methods for setting different parts of the style for this component. To set the body style name I simply used the following code and it worked. No need to create a new css rule here.
treeGrid.setBodyStyleName("#E0E0E0");
Related
I was wondering whats the best way around dynamically hiding some menu items. At the moment I have 6 items just in a matrix layout row. I want to have 3 items aligned left and 3 items alligned right. If one of the items is set to not visible I want it to move accross. I've done something similiar in a horizontal layout and setting the visibility to hidden. I was wondering if this would work with a vertical layout? Having trouble trying to figure out exactly how I would do it as I'm quite new to UI5 xml css and javscript. Any help would be great.
Also I'm having one other issue unrelated to this, I cant seem to bind my json model to my xml fragment, if I use the same code on my normal xml view it prints out the model data. But on my fragment it just prints it like {person>/fullName} any ideas ?
Belongs to your second question.
Maybe your binding was quoted on copy and paste? Check the native XML Code.
If no data are shown (not "{person>/fullName}"), add dependent to connect the models of your view
var oFragment = sap.ui.xmlfragment(sFragment, "fragmentName", this);
oView.addDependent(oFragment);
I am trying to create a new widget for Orange 3. I see that it provides some default areas (controlArea and mainArea) to which I can add my components. As far as I can tell, widget.py places both of these inside 'self.leftWidgetPart' which uses vertical orientation for its layout. From widget.py:
self.leftWidgetPart = gui.widgetBox(self.topWidgetPart,
orientation="vertical", margin=0)
if self.want_main_area:
...
self.mainArea = gui.widgetBox(self.topWidgetPart,
orientation="vertical",
sizePolicy=QSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding),
margin=0)
I would like to layout controlArea and mainArea horizontally instead. I believe this is possible because the OWBoxPlot widget appears to do it, but I can't work out what/where the relevant code snippet is (I guess my Python is weak).
Any help appreciated,
David
In PyQt in general, you can change the orientation by removing the existing layout and replacing it with another (hopefully before you populate it).
For self.controlArea in Orange, you can do something like this.
from PyQt4.QtGui import QHBoxLayout
import sip
sip.delete(self.controlArea.layout())
self.controlArea.setLayout(QHBoxLayout())
I would like to print a GWT widget which extends Composite. This widget is composed of a grid whose cells are built with a ListDataProvider. When the user clic on a button print, the widget to print is built. Once this is done, I launch the print:
Element element = widgetToPrint.getElement();
String content = element.getInnerHTML();
print(content);
public static native boolean print(String content)
/*-{
var mywindow = window.open('', 'Printing', '');
mywindow.document.write('<html><head><title>Test</title>');
mywindow.document.write('<link rel="stylesheet" href="/public/stylesheets/ToPrintWidget.css" type="text/css" media="all"/></head><body>');
mywindow.document.write(content);
mywindow.document.write('</body></html>');
mywindow.print();
return true;
}-*/;
So, here is my problem:
The window which is opened by this method contains the core of the widget (built by the UI Binder), but some children are missing...
If I look inside the ListDataProvider and its related FlowPanel, the data are consistent, i.e. I've got several item in my list and in the flowPanel.
Consequently, it should be visible on the printing window...
I thought that maybe the problem was related to the method used to print the widget, so I also tried to add this widget into a dialogbox just before launching the print, to see if the widget was properly built... and it was.
So my widget displays well on a dialogbox, but if I try to give its innerHTML to the print method, by using getElement(), some widgets are missing... I've the feeling that the widgets which should have been built when the ListDataProvider changes are not properly set in the DOM... Somehow it works when I add the widget to a regular component, but it doesn't work when I have to give directly its innerHTML...
Do you have any idea ?
Thanks in advance.
Widgets are not just the sum of their elements, and DOM elements are not just the string that they are serialized to. Widgets are the element, and all events sunk to the dom to listen for any changes or interactions by the user. Elements then have callback functions or handlers they invoke when the user interacts with them.
By serializing the element (i.e. invoking getInnerHTML()), you are only reading out the structure of the dom, not the callbacks, and additionally not the styles set by CSS. This probably shouldn't be expected to work correctly, and as your experience is demonstrating, it doesn't.
As this is just a print window you are trying to create, event handling is probably not a concern. You just want the ability to see, but not interact with, the content that would be in that set of widgets. Styles are probably the main problem here then (though your question doesn't specify 'some children are missing' doesn't tell us what is missing, or give us any more clues as to why...) - you are adding one stylesheet in your JSNI code, but CellTable (which I assume you are using since you reference ListDataProvider) needs additional CssResource instances to appear correctly. I'm not sure how you can hijack those to draw in a new window.
Are you only using this to print content, not to let the user directly interact with the data? If so, consider another approach - use a SafeHtmlBuilder to create a giant, properly escaped string of content to draw in the new window.
String content = element.toString();
This will include all hierarchy elements in the node.
Just a reminder, all the GWT handlers will not work, and you have to sink all the events using DOM.
You might want to grab the outer HTML rather than the inner one.
GWT unfortunately has no getOuterHTML, but it's relatively easy to emulate.
If your widget is the only child within an element, then simply get the inner HTML of the parent element (w.getElement().getParentElement().getInnerHTML())
Otherwise, clone your widget's node add it to a newly created parent element, from which you'll be able to get the inner HTML:
DivElement temp = Document.get().createDivElement();
temp.appendChild(w.getElement().cloneNode(true));
return temp.getInnerHTML();
First thank you for your answers, it helped me to work out this problem.
I've almost solve the problem:
First, I do not use ListDataProvider anymore, because it wasn't clear for me when and how the view was refreshed. Instead I add my widgets by hand, which makes sense since, they are not going to move anyway.
Then, I define the style of my widgets using a common CSS stylesheet. However, in order to do it, I can't rely on CssResource, which was the way I was used to do it with GWT. I think that this comes from the JS method which gets lost by this kind of styles... Instead, I have to specify everything in a static CSS stylesheet, and to give it to the JS.
It works perfectly well, ie, I have my widgets, with thei styles, and I can print it.
But...
The color of some widgets depends on the color of the object that they represent. Consequently, I cannot write a generic CSS stylesheet... And as I said, I can't add a style using CssResource... Do you have any ideas on the way to handle that ?
To make sure I'm clear on the way I'm adding styles, here is an example:
Label l = new Label("Here is a cell in my grid to be printed");
l.addStyleName("PrintLineCell-kind_1");
With, in a public CSS stylesheet:
.PrintLineCell-kind_1{
background-color: red;
}
I hope there is a better way than to write 300 styles to cover 300 different colors...
I have a well populated Object which has properties like color,size,weight etc.
I need to get these object properties and place them in a TextBox.
So i want to do something like
`textBox.getLine1.setText(Object.getColor());
textBox.getLine2.setText(Object.getWeight());`
That is i need a textBox in which i can edit individual lines.
I am planning to have a widget which has a FlexTable inside the TextBox but i am not sure how to work on it.
Can someone please help me on this?
Thanks
Probably you're looking for the RichTextArea widget
You can check the documentation here: RichTextArea
And an old, but nice tutorial here: Tutorial
I did something similar: I needed to let user select one or several text rows and let each row be clickable to perform an action.
So I used a VerticalPanel with Labels.
VerticalPanel labelPanel = new VerticalPanel();
For a given index Label:
Label selectedLabel = (Label) labelPanel.getWidget(index);
DOM.setElementAttribute(selectedLabel.getElement(), "id", "label-selected");
CSS code as you wish!
If you must use a TextArea, which is a standard <input type="text"> element, you would have to find line breaks and create a Selection, and then replace it with whatever you want. You could also read the entire text, change it, and then update the entire TextArea value again.
I would recommend splitting your widget into multiple single line TextBoxes.
I have a question related to eclipse plugin development. Is there any means
by which I can programmatically change the background color in eclipse.
I am able to change the text foreground color by calling
setTextColor(color, offset, length, controlRedraw) in ITextViewer
but I don't find any function by which I can change the background
color of the text.
If anyone has been through this kindly share your thoughts.
Thanks
arav
I am not sure this can be done easily, short of extending your own version of a Text Editor, here you provide a Configuration Class which inturn accepts a PresentationReconciler Class which is like a Rule Class that tells you if you need to put a Foreground or a Background Color
See this document
PresentationReconciler
IPresentationDamager: define dirty region given a text change
IPresentationRepairer: recreate presentation for dirty region
DefaultDamagerRepairer does both, based on a token scanner
ITokenScanner: parse text into a token stream
RuleBasedScanner uses simple rules
Extract from the presentation
From Text Editor Recipes, Season’s recipes for your text editor
Tom Eicher, IBM Eclipse Team
Here, the null background color means, takes the default system background for that widget. (so here: white).
But you could specify whatever color you want, based on the partitioning of your document and on the rules that would apply.
I know this was asked a while ago, but in case anyone is looking for another solution, I thought I would post the following:
Since you are able to use the setTextColor method, then you should be able to use the changeTextPresentation method as well.
In the case of my plug-in, I have a TextListener that calls the TextChanged method I overwrote. I did the following to add background color using the changeTextPresentation method. In doing so, I was able to get a Green background with Black foreground. Not that I would want this, of course, but just for testing purposes.
public void TextChanged(TextEvent event){
...
TextPresentation presentation = new TextPresentation();
TextAttribute attr = new TextAttribute(new ColorManager().getColor(MyConstants.BLACK),
new ColorManager().getColor(MyConstants.GREEN), style);
presentation.addStyleRange(new StyleRange(startOffset, tokLength, attr.getForeground(),
attr.getBackground());
sourceViewer.changeTextPresentation(presentation, true); //sourceViewer is a global variable passed to my TextListener class constructor.
}