Hello everybody i'm new here and new on the opengl and 3d world i have successfuly load and display an obj file but whene i reload a new one by pressing a jbutton the new one is drawn under the old one please can you help me to refresh the glcanvas.
You do not say what your jbutton does so im guessing you are reinitializing your drawable when you load your new object.. In my experience this only adds a new drawable to your canvas.. I would prefer to just change whats beeing drawn but if not heres how to close your current drawable/canvas:
try {
canvas.getContext().makeCurrent();
canvas.getContext().release();
canvas.getContext().destroy();
drawable.getContext().makeCurrent();
drawable.getContext().release();
drawable.getContext().destroy();
} catch (GLException releaseFailure) {
releaseFailure.printStackTrace();
}
And then reinitialize them when you add the new object..
Related
I am trying my way through JavaFX and still have many - probably silly - beginner questions.
My problem of the day is the following:
I am creating, in Scene builder and Controller, a FlowPane to which I want to add a right-click option, that opens a Context Menu.
Through the scene builder I have added the function OnContextMenuRequested and defined it in the Controller.
To check, I have added a print commend and a Dialog Box to the function, which work well.
Yet, the Context Menu does not work..
Anybody could help and tell me what am I missing???
Thanks in advance...
public void contextMenu(ContextMenuEvent contextMenuEvent) {
// working fine ..
Alert alert = new Alert(Alert.AlertType.INFORMATION);
alert.setTitle("Information");
alert.setHeaderText("Look");
alert.setContentText("Message");
alert.showAndWait();
// working fine
System.out.println("Hello");
// Context Menu ......... not working
ContextMenu contextMenu = new ContextMenu();
MenuItem quit = new MenuItem("quit");
MenuItem hello = new MenuItem("hello");
contextMenu.getItems().addAll(quit, hello);
contextMenu.setX(10.0);
contextMenu.setY(10.0);
contextMenu.show();
????.setContextMenu(????)
}
Unless you have a control, you need to show the ContextMenu "manually" using one of the methods defined in ContextMenu:
// contextMenu.setX(10.0);
// contextMenu.setY(10.0);
contextMenu.show((Node) contextMenuEvent.getSource(), contextMenuEvent.getScreenX(), contextMenuEvent.getScreenY());
I am creating a JavaFX Dialog and want to use the default icons for Info/Warning/Error.
In Swing, I can get the Information icon this way:
UIManager.getIcon("OptionPane.informationIcon")
How can I do the same in JavaFX?
I asked for this some days ago. I use this code to make labels with default icons:
Label img = new Label();
img.getStyleClass().addAll("alert", "error", "dialog-pane");
dialog.setGraphic(img);
If you get a copy of the images you can use these ideas.
Alert example:
#FXML void handleHelpButton(ActionEvent event){
Alert alert = new Alert(AlertType.INFORMATION);
alert.setTitle("Help");
alert.setHeaderText("Help");
alert.setGraphic(new ImageView(this.getClass().getResource("img/help.png").toString()));
alert.setContentText("Place the cursor over a button for hint.");
Stage stage = (Stage) alert.getDialogPane().getScene().getWindow();
stage.getIcons().add(new Image(this.getClass().getResource("img/help.png").toString()));
alert.showAndWait();
}
Dialog example:
ChoiceDialog<String> dialog = new ChoiceDialog<>(currentFullscreenSetting, choices);
dialog.setTitle("Settings");
dialog.setHeaderText("Settings");
dialog.setContentText("Fullscreen on startup: ");
dialog.setGraphic(new ImageView(this.getClass().getResource("img/settings.png").toString()));
Stage stage2 = (Stage) dialog.getDialogPane().getScene().getWindow();
stage2.getIcons().add(new Image(this.getClass().getResource("img/settings.png").toString()));
// Traditional way to get the response value.
Optional<String> result = dialog.showAndWait();
This part of both examples is tricky. I noticed that this would not work unless I had the image in the same folder as the .fxml and controller.java files or in a folder that is in the same folder has the files mentioned. You might have to play with you file location. In my example it appears that my setGraphic and getIcons images are in the same folder, but they are not.
stage.getIcons().add(new
Image(this.getClass().getResource("img/help.png").toString()));
My file structure looks like:
PlanningChart
css
img
planningchart
img
The second img folder holds the images for stage.getIcons.add(). The images could also be probably use to for setGraphic. I did not try it.
You do not need to create custom JavaFX dialogs for Info/Warning/Error, since JavaFX already have created Alerts for you.
The Alert class subclasses the Dialog class, and provides support for a number of pre-built dialog types that can be easily shown to users to prompt for a response.
You can create different types of Alerts, depending on the AlertType, it will embed the necessary image.
For Information alert use :
Alert alert = new Alert(AlertType.INFORMATION);
alert.setTitle("Information Dialog");
alert.setHeaderText("An Information Dialog");
alert.setContentText("Information Message");
alert.showAndWait();
Similarly, for Warning alert, you can use
AlertType.WARNING
and for Error alert, you can use :
AlertType.ERROR
I have two layouts in JavaFX app. The first one contains table view whereas the second one is a simple dialog to input data. The problem is that I want to refresh data after closing the dialog. Now I have a button on the first layout which refreshes data:
data.removeAll(data);
loadDataToTable();
But I don't want to invoke methods shown above with the button but automatically right after closing the dialog. I don't know how to make this, let's say, connection between those controllers.
thanks in advance
The new Dialog, if I am not wrong must be a new Stage ! Let us consider the new Stage to be modifyStage. We can call the onSetCloseRequest of the new Stage and put your code in it.
modifyStage.setOnCloseRequest(new EventHandler<WindowEvent>() {
#Override
public void handle(WindowEvent paramT) {
data.removeAll(data);
loadDataToTable();
}
});
I have a page that displays data about an object. At the top of the page is room for an icon, showing a picture of that object. Tapping this icon brings up a new page that allows the user to take a new picture, and save it as a temporary new picture for the object (not put in database, but should persist for the session)
Initial page:
private var source:Object = new Object();
protected function onInitialize():void {
source = navigator.poppedViewReturnedObject;
}
When setting source for the image later...
if (source != null) {
pic.source = source.object;
}
else {
pic.source = "no_picture_available_image.png";
}
2nd Page (User can take picture, and view new picture):
[Bindable]
private var imageSource:Object = null;
<s:Image id="pic" width="90%" height="75%" horizontalCenter="0" source="{imageSource}" />
After taking picture...
protected function mediaPromiseLoaded(evt:Event):void {
var loaderInfo:LoaderInfo = evt.target as LoaderInfo;
imageSource = loaderInfo.loader;
}
This does show the picture just taken correctly on this page.
To get back to old page, i use navigator.popView, and use:
override public function createReturnObject():Object {
return imageSource;
}
Unfortunately, it doesn't work. The imageSource isn't null when it is read from navigator.poppedViewReturnedObject, but no image is shown.
Does the LoaderInfo not persist after popping the view? Are the camera pics not automatically saved? I can't find answers to any of these questions, and I can't debug using the phone in my current environment.
After thinking about this a bit, don't return LoaderInfo.loader as the poppedViewReturnedObject. If I remember correctly, a DisplayObject can only be set as the source of one Image. Instead, return LoaderInfo.loader.content.bitmapData. That BitmapData should be the raw data used to display the image. This data can be used repeatedly to create images and can be set as the source of an Image.
Problem turned out to be in my first page's image declaration - I didn't set a width. Seemingly, the object being displayed couldn't handle not having a specified width.
Note that passing back the loader did work fine.
I am developing a static flex application which does not have a database connection, all the values are hardcoded(its just a prototype for the original app). Now when i click the save button, i need to get a message like saving in progress... please wait, I need to display this message for 3 seconds.
Please let me know how could this be done.
Thanks!
Cheers,
Deena
I am putting in the complete code of how i did it for easy reference to other users.
First Create a savingProgressBar.mxml file with the progress bar with the required format.
Then in the parent page where you want the progress bar enter the following scrip code
[In my parent page i click a button called save and on click of it i am calling the save() function]
private var pBar:IFlexDisplayObject;
private function save()
{
pBar=PopUpManager.createPopUp( this, savingProgressBar, true);
PopUpManager.centerPopUp(pBar);
var myTimer:Timer = new Timer(1500,1)
myTimer.addEventListener(TimerEvent.TIMER, timerHandler);
myTimer.start();
}
public function timerHandler(event:TimerEvent):void
{
PopUpManager.removePopUp(pBar);
}
]]>
Hope this helps,
cheers,
Deena
Fist create a timer with:
private var t:Timer = new Timer(3000,1);
Then add an event lister to resond when the timer will be finished:
t.addEventListener(TimerEvent.TIMER_COMPLETE, removeMSG);
//start timer
t.start();
Add, removeMSG function that will remove your progress bar or notifier:
private function removeMSG(e:TimerEvent):void{
//code to remove the notification
}
Also if you plan to use ProgressBar control in Flex use indeterminate="true" that will make progress bar move without any feedback data from your webservice
Use a timer that triggers every 200ms or something, and each time it triggers have it add 3s/200ms to the progress bar.