I have a variety of ToggleButtons that are loaded with an image. The buttons size is determinated by the image size and the button itself is created by JavaCode. A few buttons have icons (the icon is just part of the loaded image) on either the left or right side.
How can I move the text by a certain value to the left or right so I can center the text again but with the offset of the icon? I don't mind passing the width of the icon as parameter, but I cant find anything to move the text for a certain amount.
The button is created from the green image, the right icon is part of it; total width is 300, icon is taking 100; the text should be centered to the leftover 200. For language setting reason the text itself cant be part of the picture.
you can set the style of the button as followed:
// top right bottom left
btn.setStyle("-fx-padding: 5px 5px 5px 5px;");
EDIT:
You can use an HBox:
HBox hbox = new HBox();
// the text of the "button"
Label lbl_txt = new Label("Text");
// the icon of the "button", i am using Labels for icon(with css)
Label lbl_ico = new Label("ico");
hbox.getChildren().addAll(lbl_txt, lbl_ico);
hbox.setOnMouseClicked(new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent t) {
// alternative to Button click
}
});
Everything else is styling with css. ;-)
Related
I'm trying to remove the down arrow from a combobox. All the solutions I have found just make the arrow disappear, for example this one.
Is there a way to remove completely the space where the arrow appears and fill the box just with the text of the selected choice?
If you want to completely elimnate the arrow & arrow button space, you can try with the below custom ComboBox.
The below code is setting the arrow button and arrow nodes size to 0 and asking to rerender the comboBox. The null check is to let this changes apply only once.
public class MyComboBox<T> extends ComboBox<T>{
Region arrowBtn ;
#Override
protected void layoutChildren() {
super.layoutChildren();
if(arrowBtn==null){
arrowBtn= (Region)lookup(".arrow-button");
arrowBtn.setMaxSize(0,0);
arrowBtn.setMinSize(0,0);
arrowBtn.setPadding(new Insets(0));
Region arrow= (Region)lookup(".arrow");
arrow.setMaxSize(0,0);
arrow.setMinSize(0,0);
arrow.setPadding(new Insets(0));
// Call again the super method to relayout with the new bounds.
super.layoutChildren();
}
}
}
UPDATE :
Based on the suggestion of #kleopatra, we can get the same behaviour using css as well (without the need to create a new class for ComboBox).
.combo-box .arrow-button,
.combo-box .arrow{
-fx-max-width:0px;
-fx-min-width:0px;
-fx-padding:0px;
}
The below image will tell you the difference of a normal combox box and this custom combo box. The left one is the normal comboBox, you can see the list cell when inspecting with ScenicView. The right one is the custom one. The list cell is completely occupied suppressing the arrow space.
I have a GridPane (4x5), all it's cells have as child an AnchorPane which cointains an ImageView. I need to resize the image so it fully cover the cell as soon as the gridPane (and thus it's cells) change size.
I managed to resize the image correctly when the size of the cell grows, but when the cell gets tinier the image doesn't resize back.
This leads into partially covering images of the confinant cells.
Can anyone explain what i'm doing wrong or give me the instruction to implement a proper resize?
This is my code:
ImageView image = new ImageView("/dice/" + draftList.get(i) + ".png");
AnchorPane pane = ((AnchorPane)(gridpane.getChildren().get(i)));
pane.getChildren().add(image);
fitToParent(image,pane);
//method in the same class
private void fitToParent(ImageView image, AnchorPane pane) {
image.fitWidthProperty().bind(pane.widthProperty());
image.fitHeightProperty().bind(pane.heightProperty());
}
You can try to use the setPreserveRatio(boolean) function of the ImageView class to true. This will allow you to keep the aspect ratio constant.
Eg:
ImageView iv = new ImageView(/*file path*/);
iv.setPreserveRatio(true);
Src: https://docs.oracle.com/javase/8/javafx/api/javafx/scene/image/ImageView.html
Other than this you can also try to limit the resizable property to false or set the min width and height so that the image is not partially covered
Src: https://docs.oracle.com/javase/8/javafx/api/javafx/scene/layout/Region.html#resize-double-double-
As soon as I create a new Button in JavaFX and set the background transparent with: myButton.setBackground(Background.EMPTY); or myButton.setStyle("-fx-background-color: transparent;"),
the hitbox will only consist of the text in the button when catching the ActionEvent via :
myButton.setOnAction(newjavafx.event.EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
//handle UI input
}
});
So I have to aim on a letter and click it, which is annoying, especially when having changing text and/ or small text.
How can I keep my hitbox the same while having a transparent background?
Use
myButton.setPickOnBounds(true);
which means that the layout bounds of the button will be used to determine mouse hits on it, rather than its set of non-transparent pixels.
When I set a new Background to a Button, the Background has 1px more to the right, with the color that has it's opacity <1.
Is there a way to remove that 1px, or to fill it (opacity 1)? 1px isn't much, but if you place them next to each other, that 1px turn into a visible white space. The problem I saw it when the button is added into a Pane or Group, when a HBox or VBox is used that 1px gets filled. Unfortunately I need to use Pane or Group. I tried using custom Insets, but the problem still persists.
Code example:
Background background = new Background(new BackgroundFill(Color.GREEN, CornerRadii.EMPTY, Insets.EMPTY));
Font font = new Font("Times New Roman", 16);
Button a = new Button("A");
a.setFont(font);
a.setBackground(background);
a.setLayoutX(10);
a.setLayoutY(10);
pane.getChildren().add(a);
Button aa = new Button("AA");
aa.setFont(font);
aa.setBackground(background);
aa.setLayoutX(10);
aa.setLayoutY(45);
pane.getChildren().add(aa);
Button aaa = new Button("AAA");
aaa.setFont(font);
aaa.setBackground(background);
aaa.setLayoutX(10);
aaa.setLayoutY(80);
pane.getChildren().add(aaa);
Result (the image was zoomed in so that 1px is visible better):
How that 1px looks like (that 1px above the red lines):
How that 1px looks like
How it looks like next to each other (you can see that space isn't white, nor green, but a light green:
How it looks like next to each other
The effect observed is the result of the button width not being integral. This results in those parts not covering a pixel completely being rendered half-transparent.
Pane unfortunately does not consider the snapToPixel property and simply resizes the children to the sizes computed from it's properties.
To fix this, use a type of Pane that does snap coordinates to pixels, e.g. VBox or in this case a AnchorPane without any anchors set.
Pane pane = new AnchorPane();
I have these buttons with different size:
Image
How I can make all buttons with same with size?
It depends on layout where the button is located. For example, if you add all the buttons into GridPane or BorderPane, you have to specify each button width to correspond to certain variable. In the following example I wrap all buttons inside VBox, set VBox preference width and tie up all buttons minimum width to it:
VBox vBox = new VBox();
vBox.setPrefWidth(100);
Button btn1 = new Button("Short");
Button btn2 = new Button("Super Long Button");
btn1.setMinWidth(vBox.getPrefWidth());
btn2.setMinWidth(vBox.getPrefWidth());
vBox.getChildren().addAll(btn1, btn2);
It is also worth to mention that there are two ways to specify the button size. You can do it in the java code or specify it in javafx .fxml file. The above method is an example for java code implementation.
You can also unclamp a button's maximum dimensions so it will grow to fill the available space (unlike most nodes, by default a button node has it's max size clamped to it's preferred size so it doesn't usually grow to fill available space). An Oracle tutorial on Tips for Sizing and Aligning Nodes explains this in more detail.
VBox vBox = new VBox();
Button btn1 = new Button("Short");
Button btn2 = new Button("Super Long Button");
btn1.setMaxWidth(Double.MAX_VALUE);
btn2.setMaxWidth(Double.MAX_VALUE);
vBox.getChildren().addAll(btn1, btn2);
using css you can override the preferred width of all buttons like
.button {
-fx-pref-width: 200px;
}
or create your own style class for certain button groups and add the style to the button like:
css:
.my-special-button {
-fx-pref-height: 28px;
-fx-pref-width: 200px;
}
and then set the style to your button with either
fxml:
styleClass="my-special-button"
or in java
myButton.getStyleClass().add("my-special-button");