After trying to find a solution for Centering Text on a Button with Offset, I'm doing now a custom component.
The goal is to make a button-like component that has an icon on one side and a centered text filling the rest of the button.
The component contains either two Label/ Buttons to display the Icon and text. Both of them have a background Image, defined in css.
The css looks like this for Icon and the text with exchanged image as background for text
#button-icon-cancel{
-fx-font-family: "Arial";
-fx-padding: 0,0,0,0;
-fx-background-color: transparent;
-fx-font-size: 28px;
-fx-graphic: url('images/button/cancel.png');
}
#button-icon-cancel:pressed{
-fx-graphic: url('images/button/cancel-pressed.png');
}
The images are loaded by setId(). Currently both components are added to a Panel before passing to the stage. They contain an OnClickEvent for processing.
Now to the actual question
How can I achieve that if one Component is clicked, the other one is getting the :pressed from css as well?
Adding the ClickEvent to the Panel is doing nothing (regarding clicking on either Label/ Button)
Adding both of them to a HBox, adding the Event to the HBox work in that regard, that I can click either component and the Event gets fired, BUT the :pressed State is only applied to the component you clicked.
Is it possible to give all childs the notification, that they should behave like they got pressed? Since we have a lot of small Icon, but only one background for the text, placing a Label over the whole thing create a lot of unneeded wasted Image space. Also this would cause the problematic for changing font color if not all css are changed at once (the label-over-button-solution with .setMouseTransparent(true) wouldn't change the font color of the text label since the label doesn't notice button is pressed)
First of all, JFX-8 will support wider range of css improvements, which will allow you to solve the issue easier.
To solve your issue, i can suggest the following : each node have a pressed property. You can add a listener on this property, and when it changes to true, use setStyle(String) method on needed nodes, and use setStyle(null | "") on changing to false.
Related
Haven't coded in years, and started to play around with Google App Maker last week. As the title suggests, I have a couple questions.
I'm trying to figure out if there's a way to dynamically change the color of a button upon click. Right now I have the button changing enabled status to false on click, and using CSS style to change the color of disabled buttons to gray. Is there a way to do this without disabling the button?
Is there a way to wrap text in a button? Right now I am overlaying a Label on the button with the correctly styled font, but would ideally like to have that text be from the Button, as the space the label takes up is not clickable.
Thanks in advance for any help!
add some lines to your page or global styles this
this should let you wrap text.
.app-Button {
white-space: pre-wrap;
}
Say you want to change your button blue when a Boolean value gets changed to "true" in your data source.
add a class to your styles
.blue{
background: blue;
}
then select your button and in the property editor>Display>styles click the drop down and select binding
set the binding to
=#datasource.item.**YourBooleanItem** === true? ['blue']:[]
Clarification there are two steps
Define a CSS class
Add the Class to the "styles" property of
your widget.
The Answer above uses a "binding" but also means that you've got to have an Item with this binding which you may not want.
I wanted a 'decimal' button to be orange when it was active. So on the Page I created a DecimalActive property. I used the onAttach event to set this property to false.
I created a CSS Class (local to the page) named Orange and Normal
.Orange {background:orange};
.Normal {background:white};
Then the following is my onClick
onClick(widget,event)
{
widget.root.properties.DecimalActive = !widget.root.properties.DecimalActive;
widget.styles = widget.root.properties.DecimalActive ? ['Orange'] : ['White'];
}
The challenge was figuring out exactly what AppMaker wanted in the styles []. I don't think it puts applied styles in this array. At least they didn't show up when I console.log(JSON.stringify(widget.styles);
I have verified that this does work (Dec 2019)
I think this answer is clearer and if someone wants to bind it the color change they still can.
I have a QCombobox, consists of 3 or 4 items.
Whenever,I try to select an item from my QCombobox, the color of the item changes to black(is not at all visible clearly).When I move my cursor away from the Dialog UI, then the color of the item changes to white (and is now clearly visible).
I think the problem lies with my QCombobox focus, but still not sure if I need to take care of it while adding the items inside my QCombobox.
Can someone explain the method, so that text of the items inside my QCombobox are clearly visible always?
Look for any stylesheets added for the combobox.
Also you can look for "setItemdata" function and anything is done with respect colors (backgroundrole).
Or if it is tough to figure out and wasting time, after adding your combobox items, change the background color of items to your convenience (Red in below code is just an example).
ui->comboBox->addItems({"text1","text2","text3","text4"});
ui->comboBox->setStyleSheet("QAbstractItemView { selection-background-color: red; }");
I built a GUI with a treeview based on GTK+3. The tree view does currently not show the expander of the treeview. However, I can see that there is some space reserved for the expander as the indentation of the rows is larger if there is one element with a 'subcategory'.
In addition, I figured out, that the expander is shown if I use another GTK style.
Therefore, I tried to change to color of the expander, but it has no effect:
*.view { background-color: ... } changes the background color of the 'buttons' in the tree view. However, the expander is still not visible.
treeview.view.expander { color: ...} does not have any effect at all.
Now, my assumption is that the expander is hidden or has some transparency, but I could not find any option to change it.
Do you have any documentation links that explains exactly which CSS option does have an influence on the treeview or its expander or a hint what could be wrong in the CSS file?
Thanks!
I figured out what the problem is: I am missing the icon used by the treeview expander in /usr/share/icons.
The problem is solved by adding the icons specified in .expander { -gtk-icon-source: -gtk-icontheme("icon"); } to the icon sources in /usr/share/icons or /~.icons.
I am trying to set the text background of the JavaFx label text as green using the following CSS
label.setStyle("-fx-background-color:rgba(85, 255, 68,0.7););
And the unhighlight using the following
label.setStyle("-fx-background-color:rgba(0,0,255,0);");
However these does not work most of the times when it has to be done back to back.
Is there any way to set the style without using CSS i.e. using JavaFx API itself. I found label.textFill(Paint p) for text color but nothing for background colour i.e. the color of the label itself.
Is there any way to set the style without using CSS i.e. using JavaFx API itself.
For some styles (such as the text fill) yes. For background colors, background images, borders, etc API methods will not be available until JavaFX 8 is released (see Public API for Region backgrounds and borders in the JavaFX issue tracker for more information - anybody can sign up for access).
these does not work most of the times when it has to be done back to back.
If you just highlight a label and then unhighlight it again without using something like a PauseTransition to give the user some time to see the highlighted label, then, from the user's perspective nothing is going to happen as all the user will see is an unhighlighted label.
Not sure of your use case, but if you only want to highlight part of the text in a label or let the user highlight the text with a mouse, then you can use a TextField with editable set to false.
Possible Workaround
If the Java 8 preview does not work for you and you are experiencing errors due do bugs in the JavaFX CSS processing, then try placing a Pane then a label inside a StackPane. Set the background color of the Pane to label.setStyle("-fx-background-color:rgba(85, 255, 68,0.7);); Bind the Pane's preferred width and height to the Label's width and height and toggle setVisible on the Pane as appropriate.
Finally I found the workarround. I had to give a PauseTransition to give the system some time between unhighlight and highlight. CSS showed effect only after the pausetransaction if the labels were already highlighted. I think it may be a bug. I will file a jira. The duration of paustransition may be as low as 1 milisecond so that there is not lag from the user's point of view.
Chrome has some cute features to make the selected form element (input ect) stand out like adding a border color and, more annoyingly, it slightly reduces the margins on some of my form elements after they've been selected, shifting the page slightly each time a text entry box is selected.
It's not the textarea draggable resize effect that chrome has, it's effecting input elements that should have a constant size, but they automatically change once selected.
Is there any CSS to disable this feature, or do I simply have to make sure my text box margins/padding are set up such that Chrome doesn't resize them?
Here it is
textarea { resize:none; }
I love working on other people's sites...the problem was javascript they were using to restyle form elements after click and I have no idea why. Solution was to remove that junk.