I have what looks like a very simple problem: I want to design a QLabel whose value changes dynamically (no issue here) and whose background color changes accordingly (this is the issue).
Of course, I know I can do something like that (pseudo code):
function on_new_value(value):
label.setText(value)
if value>10:
label.setBackgroundColor(RED)
else if value<0:
label.setBackgroundColor(RED)
else:
label.setBackgroundColor(GREEN)
But that kind of mixes model and view. What I'd like, ideally, would be to be able to use an extended version of Qt Stylesheets as follows:
QLabel { background: green; }
QLabel { if value>10: background: red; }
QLabel { if value<0: background: red; }
Obviously, that is not possible. But I'm wondering if Qt allows for something close in order to embbed (for instance in a class) a graphic behaviour based on a value.
I know about QPalette, but the style condition is only about the widget Active/Disable state, not its "value".
In other words, I'm looking for sort of a ValueDependantStyle class or somehting close.
Any pointers? Am I looking at this all wrong?
Edit: in case this is important, I'm developping with PyQt5.
You could use a "model property" on the label, that defines the color in a style sheet (cf. Qt Style Sheet Reference about properties):
function on_new_value(value):
label.setText(value)
if value>10:
label.setProperty("HasError", "true")
else if value<0:
label.setProperty("HasError", "true")
else:
label.setProperty("HasError", "false")
QLabel[HasError="false"] { background: green; }
QLabel[HasError="true"] { background: red; }
Does anyone know how can I change mat-spinner color in Angular Material?
Overriding css doesn't work. I tried changing color in material files but they can only be imported, I can't change anything there.
I want it to be my custom color, not color from prebiult-themes.
Use this code for ** < mat-spinner >** add this code in your .css file
.mat-progress-spinner circle, .mat-spinner circle {
stroke: #3fb53f;
}
This answer will work for those who're looking for a flexible solution in Angular 4 / 6 / 7. If you wan't to change the color of a mat-spinner at a component level, you'll need to use the ::ng-deep selector. Knowing this, the solution is quite easy.
In your html file:
<div class="uploader-status">
<mat-spinner></mat-spinner>
</div>
In your css / scss file:
.uploader-status ::ng-deep .mat-progress-spinner circle, .mat-spinner circle {
stroke: #000000;
}
Notice that the .uploader-status css class encapsulates the component. You could just use ::ng-deep without using a class but then whatever changes you're doing to the mat-spinner will appear in other areas of the application. Check this to learn more.
Easy Fix!
Add custom css rules inside styles.css instead of component.css file
.mat-progress-spinner circle, .mat-spinner circle {
stroke: #2A79FF!important;
}
To your .css/.scss component file style add (it will works locally - in component only)
:host ::ng-deep .mat-progress-spinner circle, .mat-spinner circle {
stroke: #bada55;
}
If you don't want to mess around with the global css and need a way to set the spinner to different colors in different areas of your app, I would strongly recommend to create a directive for it.
import { Directive, Input, ElementRef, AfterViewInit } from '#angular/core';
#Directive({
selector: "[customSpinner]"
})
export class CustomSpinnerDirective implements AfterViewInit{
#Input() color: string;
constructor(
private elem: ElementRef
){}
ngAfterViewInit(){
if(!!this.color){
const element = this.elem.nativeElement;
const circle = element.querySelector("circle");
circle.style.stroke = this.color;
}
}
}
Then the spinner should work like this:
<mat-spinner diameter="22" customSpinner color="#fff"></mat-spinner>
mat-spinner html code :
<mat-spinner color="accent" diameter="20" class="loading"></mat-spinner>
And now sass code :
.mat-spinner {
::ng-deep circle {
stroke: #33dd82;
}
}
Color is build in.
Theming
The color of a progress-spinner can be changed by using the color property. By default, progress-spinners use the theme's primary color. This can be changed to 'accent' or 'warn'.
https://material.angular.io/components/progress-spinner/overview
example
<mat-spinner color="warn"></mat-spinner>
I think the key here is that is must be in the GLOBAL styles.css file. The below solution does work if placed there (should be the CSS file affected when material was added to the project if added with ng add:
.mat-progress-spinner circle, .mat-spinner circle {
stroke: #b68200;
}
Of course you could also add classes to the component and specify different selectors if you want distinctly styled spinners. However, it seems the classes must be in the global CSS file.
Late to the game, but this worked well in my .scss file today...
.parent-element-class {
::ng-deep
.mat-progress-spinner,
.mat-spinner {
circle {
stroke: white;
}
}
}
In your styles.css file, add...
::ng-deep .mat-progress-spinner circle, .mat-spinner circle {
stroke: #2A79FF!important;
}
As you might have guessed, I have just made a simple modification to Nitin Wahale's answer. I have prefixed his answer with ::ng-deep and it worked in my case as I had the same issue.
I hope this helps somebody
By default angular material would give your spinner default color of primary.
You can use 3 colors available in pallet that would be primary, accent, warn.
However, if your needs are of different color please consider anyone of the below options.
Easy way(not recommended)
You can use any of method to override css forcefully mention in other answers. I would recommend using parent class above spinner element if you do not want spinner to be of same color throughout the application.
The correct and recommended approach would we to use custom-theme for material. If you already have custom you can just
do like creating a custom mixin called
//here $primary-color is the color you want your spinner to be
#mixin spinner-custom-theme($primary-color, $accent-color, $warn-color) {
$custom-spinner-theme-primary: mat-palette($primary-color);
$custom-spinner-theme-accent: mat-palette($accent-color, A200, A100, A400);
$custom-spinner-theme-warn: mat-palette($warn-color);
$custom-spinner-theme: mat-light-theme($custom-theme-primary, $custom-theme-accent, $custom-theme-warn);
#include mat-progress-spinner-theme($custom-spinner-theme);
}
Now go to file where #include angular-material-theme($custom-theme);
is written
and #include your mixin just below the #include angular-material-theme($custom-theme);
To know more on how to create custom theme you can check this blog here
Sample Color, strokeWidth, diameter and title
<mat-spinner strokeWidth="24" [diameter]="85" color="warn" title="Tooltip text here"></mat-spinner>
In your css file mention like below:
::ng-deep.mat-progress-spinner circle,.mat-spinner circle {stroke: #f2aa4cff !important;}
Here, ::ng-deep will be used to force a style.
!important here what says is that "this is Important",you ignore all other rules and apply this rule.
.mat-mdc-progress-spinner { --mdc-circular-progress-active-indicator-color: white; }
This worked for me using Angular 15.
This is best achieved by doing a custom theme.
https://material.angular.io/guide/theming
use this code
<md-progress-circular md-diameter="20px"></md-progress-circular>
md-progress-circular path {
stroke: purple;
}
In case you guys want to customize each spinner on your webpage. You can do it this way:
svg .mat-progress-spinner circle, .mat-spinner circle {
stroke: inherit;
}
And now on mat-spinner add class:
<mat-spinner class="custom-spinner-color"></mat-spinner>
And in css file:
.custom-spinner-color {
stroke: #234188;
}
That was what I wanted to achieve. I suppose if you look for this question you probably want the same.
Mat progress spinner custom timer, I changed to 3 different colors based on the value passed to mat spinner. Pls refer : https://material.angular.io/components/progress-spinner/examples
<mat-progress-spinner class="mat-spinner" [color]="progressColor"
[diameter]="170" [strokeWidth]="14"[mode]="'determinate'"
[value]="progressLabel">
</mat-progress-spinner>
Ts file
timer: number = TIMER; // say 60 seconds
progressColor: ThemePalette = 'accent';
timerPercent: number = 0;
progressLabel: number = 100;
startTimer() {
this.timer = TIMER;
this.timerInterval = setInterval(() => {
if (this.timer <= 0) {
clearInterval(this.timerInterval);
this.timerFinish();
}
if (this.timer > 0) {
this.progressColor =
this.timerPercent > 69
? 'warn'
: this.timerPercent > 49
? 'primary'
: 'accent';
this.timer--;
this.timerPercent = (100 * (TIMER - this.timer)) / TIMER;
this.progressLabel = 100 - this.timerPercent;
}
}, 1000);
}
For me this is how I do it clean without messing with anything globally:
in my .css
::ng-deep .customColorSpinner circle {stroke: #4e1e1e!important;}
in my .html
<mat-spinner class="customColorSpinner"></mat-spinner>
You can use a custom Angular Directive to solve this problem. The directive allows you to set a custom color on the mat-spinner like this:
<mat-progress-spinner spinnerColor="#09ff00"></mat-progress-spinner>
I have an article here where I explain this and thoroughly show you how to solve it
In component.scss where your mat-spinner exists, just add this :
::ng-deep .mat-mdc-progress-spinner {
--mdc-circular-progress-active-indicator-color: #7D469A;
}
My CSS code isn't doing anything to the look of the elements for the JavaFX application I have. I've noticed that the lines of code in the CSS document say "Unknown property" and are highlighted in yellow. I tried to uninstall and then reinstall e(fx)clipse but that didn't help. Here's the code
CSS
.header-one {
-fx-stroke-width: 4;
-fx-fill: 99000;
}
Java
Label patronHeader = new Label("Current Patron");
patronHeader.getStyleClass().add("header-one");
What should I do to fix the problem?
In your case, you use css elements, that a Label does not support:
Visit this site for more information on what you can set on Labeled controls:
http://docs.oracle.com/javase/8/javafx/api/javafx/scene/doc-files/cssref.html#labeled
-fx-stroke-width and -fx-fill are not supported CSS properties for a Label.
You need
.header-one {
-fx-text-fill: #990000 ;
}
.header-one .text {
-fx-stroke-width: 4 ;
}
If I want to embed an image with smoothing I might do something like this:
package
{
public class EmbeddedImages
{
[Embed(source="/assets/image1.png", smoothing="true")]
public static const Image1:Class;
}
}
However, if I have a bunch of buttons with different icons, I want to control which icon to display using CSS, like this:
#namespace s "library://ns.adobe.com/flex/spark";
s|Button.image1
{
icon: Embed('/assets/image1.png');
}
I want the icon to be smooth. So what is the syntax for adding smoothing when embedding with CSS?
I don't have a project to test on, but see the smoothingQuality style of Image. This obviously won't work if the button uses BitmapImage to display the icon since the style is only available for Image. Odds are, it does use BitmapImage, though.
s|Button.image1
{
icon: Embed('/assets/image1.png');
smoothingQuality: "high";
}
Again, I have no way to test this so that is a complete shot in the dark. Worth a try, though
Since it's a mobile project, then the Button icon is a BitmapImage and you could try setting its members
smooth = true;
smoothingQuality = BitmapSmoothingQuality.BEST;
or maybe do that via CSS:
s|ButtonImage {
smoothingQuality: "best";
}
I have a IButton instance and I want to change its name and color after click.
button.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
if(button.getTitle().equals("Enabled")) {
button.setTitle("Disabled");
button.setTitleStyle("disabledButton");
}
else {
button.setTitle("Enabled");
button.setTitleStyle("enabledButton");
}
}
});
As we do in general GWT project,
I have added following to the default .css file:
.enabledButton {
color:green;
}
.disabledButton {
color:red;
}
But when I run the application, it is not showing either red or green color.
Is there any other way in SmartGWT to apply CSS styles?
IButton is a StatefulCanvas, which means it handles states. This is done by adding suffixes after the base style name. For example if you set the titleStyle to "enableButton" and you move your mouse over the button, it will look for the css class: enableButtonOver. If the button is also focused, it will look for enableButtonFocusedOver etc (there are a couple of suffix combinations). Your example works if you click outside from the browser, so it will lost the focus and simply will use the enableButton css class. You can disable each state by for example setShowFocused(false). See the api.