I understand that google.maps.Marker can have a title set to them in their options, can the same be done for google.maps.Circle?
I've tried just setting title on the google.maps.CircleOptions object, but that doesn't seem to do anything.
Is there a way I can give the circle overlays a title? I imagine there is, as when you hover over a circle, the cursor is changed to pointer so there must be some kind of detection there. I don't want to make my own custom tooltip and attach it to the hover event on the circle, I want to use the browser's built in title hover.
Circles:
https://developers.google.com/maps/documentation/javascript/overlays#Circles
CircleOptions object: https://developers.google.com/maps/documentation/javascript/reference#CircleOptions
It is not currently possible to add a title to a circle. As you can see from the CircleOptions, it doesn't list 'title' as a option that you can use.
A work around could be to listen to the mousemove event on the circle then to show your own title as a custom OverlayView
Related
I am trying to create something similiar like MS paint and I need a feature where I can click on the scene and immediately being able to write where I clicked. I took the the entire code example from this Anwser to solve how to switch between canvas and textarea. In other word how to switch between "drawing" and "writing" mode. So currently I can draw and write Current progress , but my problem is I want to write text where ever I click on the textarea and not at the beginning of the row.
This is how I imagine it (Goal).
So I wanted to add a handler, which can give the mouse coordinates and set the Caret to that positon:
textarea.setOnMouseClicked(event->{
textarea.positionCaret();
});
To only realise that positionCaret() only takes 1 parameter.
So I am not able to position my "Caret" to the x,y position of my mouse click.
So the question is how do I move the "Caret"/cursor to any given positon within my textarea?
Explaining Caret positioning and why it is irrelevant for your purposes
You are misunderstanding the concept of the caret position-related APIs for JavaFX text input. The APIs have nothing to do with screen coordinates. They are referring to the position of the caret with respect to the text in the text input field.
Let's say you have the following word:
happy
Caret position 0 positions the caret before the h.
Caret position 3 positions the caret in-between the two ps.
Once the caret is positioned. If somebody starts typing, the new text will be inserted at the caret.
So if you do:
setCaretPositon(3)
Then you type haphap, then the text will become:
haphaphappy
If somebody clicks in an editable text field, the JavaFX system is smart enough to handle the click by default to position the caret next to the closest letter to the click (and also handle selection and other tasks). You don't need to write any code to get the functionality.
So the caret API has nothing to do with the task you want to accomplish.
Absolute positioning for Text (or any other Node)
If you want to define an absolute position for a text input field on mouse click, then you do it in the exact same way you position any node in JavaFX, i.e. you use the node layout functions. Specifically, you set the x and y coordinates of the node. The co-ordinate system and relevant APIs are explained in the Node javadoc. To set both the x and y values at once, you call the relocate method.
Example for positioning editable text in a pane on mouse click
Here is an example, which generates a new text area and positions the top left corner of the new text area at the position a mouse was clicked.
Pane pane = new Pane();
pane.setOnMouseClicked(event -> {
if (event.getTarget() == pane) {
TextArea newTextArea = new TextArea();
newTextArea.relocate(
event.getX(),
event.getY()
);
pane.getChildren().add(
newTextArea
);
}
});
The example uses a Pane because that is a parent node which does not apply layout positioning to its children (unlike a StackPane which will overwrite any layout values you set and apply its own layout algorithm, which, by default, will center a node in its parent node).
You can see a more comprehensive example in context in the answer to:
How do I create an editable Label in javafx 2.2
That example will convert the text between a Label and TextField on click to allow the label value to be edited. You could choose to use such functionality in your paint program, or you could do it the way MS Paint does it.
How to emulate MS Paint
What MS Paint does is allow you to initially edit the text, but once you hit return to commit the edit, it snapshots the text and paints it as an image on the canvas, converting it from a node-type object to a bit on the canvas. Thereafter you can't edit the text directly anymore. If you want to do things that way you can use a combination of the node snapshot function and the graphics context drawImage function. If you do a snapshot, make sure you set the background correctly in the SnapshotParameters, so that it is transparent, that way the text background won't overwrite your drawing (or do set a background to the appropriate color, if you wanted an overwrite).
I won't provide full code for such functionality here at this time.
Styling text input
You probably want to style (using CSS) the text input field to get the look you want. The editable label example gives some hints on how to do this, but you probably want a different style for your app. Specifically, the default style for text input will have a box and background, which you may or may not want.
Currently on a page I am building I have heremaps as the background page, designs call for two elements on the left and on the right that I'm placing over the map element. Right now, when I'm selecting the options button on here maps to select the map view type and other options, those views get hidden as my right element covers it. I've noticed the here map logo has a z-index of 1. Is there a way to change the zIndex of the options button on the buttom right corner?
This code should work for you:
// assuming ui is instance of H.ui.UI
ui.getElement().style.zIndex = 999;
For more information see https://developer.here.com/documentation/maps/topics_api/h-ui-ui.html#h-ui-ui__getelement
I have this Google example code here, http://jsbin.com/EpujIcU/2/edit?js,output which is a polyline "route" with two normal markers along the route:
What I really would like is if I can tweak the marker, so it looks a lot nicer (small circle) - fx. like this picture:
The custom markers should still be clickable so I can put an info window to it.
I do know of the possibility of custom markers, but it doesn't place the marker in the middle of the line but instead in top (yes, my icon is badly draw):
Is it possible to get as I want in the middle picture?
Yes. You need to configure the anchor custom icon correctly.
icon: {url: "http://url/icon/png", anchor: new google.maps.Point(12,12)}
I'm trying to create a custom tab navigator that has to look like this http://www.freeimagehosting.net/uploads/b470d024c4.jpg.
Also, when there's a rollover, the borders of the arrow have to be in blue (like the label in the current tab).
For that purpose, I've created a custom component: a hbox containing a label and a canvas with 3 images inside (for the arrow tip that has to change depending on the currentState).
Then, I thought of overlapping the components in order to get the blue highlight color (ex: arrow button 3 is over arrow button 4. The image of the arrow tip in button 3 will be transparent outside the arrow, so that we can see the black color of the following button).
I'm now trying to position the components inside the canvas ... but I cannot.
After the creationComplete event, I assign the label text and I was calculating the coordonates of the component but it doesn't take into account the label width... -_-'
Any ideas?
Thanks. Regards,
BS_C3
Read up on the Flex Component LifeCycle. You should be positioning and sizing your child components in the updateDisplayList() method; not in a creationComplete handler.
You should assign the label text in either commitProperties or createChildren depending upon when you know what it is.
If you want to share some code, we may be able to hone in on the exact problem. If you run code like this:
myLabel.text = 'Blahblahblahblah';
trace(myLabel.width);
I would expect that the width has not changed to reflect the new text because the myLabel has not gone through it's own component lifecycle steps yet.
I would like to customize the shape of the button to different shapes like circle, star, square or of any shape. How would i achieve so?
I apologize because this doesn't answer your question, but:
In order to make sure the user can reliably click on your button, you probably want it to be a convex shape. A rectangle or circle is fine, and you could paint a star on it. But you wouldn't want the user to try to click your star and miss, just because they were not quite inside one of its arms.
Canvas can be used as button.
Take a canvas of required size. Give your required button shape(image) as background image to canvas.
Example:
Explanation: {nextYellowButton} is the embedded button. It is an arrow mark shape button.
It is a .PNG image. So, it doesn't include the background color.
Now your button is of arrow shape. it occupies 50px * 50px area on screen. But it looks exactly like an arrow mark.