I want to make content in SlidingDrawer as dragable area too.
For example, I'm opening SlidingDrawer via fling gesture on handle and closing it via fling gesture on content.
What methods will I need to override? Or maybe it already exists in some libraries are?
I know this is a late reply but I've been having a similar problem and have found a solution that should work for static content views. It won't work if you need to check for touch events in the content area but if you just have static text/images that don't change it should work.
I copied the source code file and basically just add the code below to the public boolean onInterceptTouchEvent(MotionEvent event) method. Basically it just adds the content are to the acceptable area for dragging.
/* Within the onInterceptTouchEvent() method (Line 341) */
final Rect frame = mFrame;
final View handle = mHandle;
final View content = mContent;
handle.getHitRect(frame);
content.getHitRect(frame);
/* Source continued below */
Unfortunately I haven't found a solid solution if your content area needs to be able to scroll/touch and hopefully will find something soon.
Related
I have a scrollpanel test headers in it. Through debug, I see that the panel itself is there, but the content is not displayed in it, although it seems to be. Maybe someone knows how this is possible? The panel itself adjusts to the size of the table, but the table itself, with the content inside, is not visible.
I found the root cause of the issue - you incorrectly added the actors to the stage, which resulted in Window's and ScrollPane's Stage to be null. You have to change this line in GameManager:
screen.rootStage.actors.add(inventoryWindow.window)
To this line:
screen.rootStage.addActor(inventoryWindow.window)
While your approach did add the actors to the Stage, they were not added to the root Group and their Stage variable was not set, which resulted in weird bugs like this one. Always prefer to use the public API methods instead of accessing the class variables directly.
About pinpointing the issue: if you look into the ScrollPane rendering code, you'll notice that it only renders it children if clipBegin returns true. If you dig deeper, clipBegin has this particular check that prevented the children from being drawn: if (stage == null) return false;. Basically, you cannot use a ScrollPane without a Stage.
I'm failrly new to LibGDX and I'm running into a problem.
I'm building a classically styled RPG/Adventure game in which I'm using a TiledMap(-Renderer) to create the map. I've followed different tutorials but can't get it to work. (last one was DPG's: Full working example link)
What I need, is a column of buttons on the right side of the screen (implemented that through ImageButtons). One of these buttons lead to a settings-kind of screen and another one should lead to the game map. Under a ClickListener of the button I've added DPK's code of
MapHelper map = new MapHelper();
map.setPackerDirectory("data/packer");
map.loadMap("data/world/level1/level.tmx");
map.prepareCamera((int)stage.getWidth(), (int)stage.getHeight());
map.getCamera().update();
map.render();
The MapHelper class is an exact copy of dpk's, only change above is the setting of the width and height of the camera. Any suggestion what I'm doing wrong here?
I don't think you want to invoke map.render() in the ClickListener callback. That would mean the map is only rendered when you click, and then not re-rendered (generally everything gets re-rendered on every screen re-fresh).
I think you need to track the map in your application class, and in the ClickListener callback you need to set a flag or somehow "enable" the map (perhaps setting it to something other than null). Then in the application's render() method you can check to see if the map should be rendered or not, and render it if so.
Specifically, move the calls to prepareCamera, getCamera and render out of the ClickListener.
Having read many tutorials, articles and questions, I am still have confusions about updating the GUI. Plus there are numerous related questions here on this website and still no luck - even though I think my problem is very simple.
Basically, I have a JFrame that has a JLayeredPane as its root container. And I have some layers of JPanels inside it.
The main issue is with updating a particular JPanel in this JLayeredPane. And for this particular Panel, I have implemented an update method that changes the contents inside it.
updatePanel(int para)
//doesn't remove this panel
//removes some existing labels and replaces it with new ones
Once I create the whole Frame, obviously just calling this method won't show any change displayed the frame.
private void static main (String[] args){
WindowFrame frame = new WindowFrame()//WindowFrame extends JFrame
frame.updatePanel(2);
.....
.....
}
And that's where I am stuck. I want to update the contents as the frame is displayed.
I saw these methods mentioned by people but due to nature of problems, I couldn't fully grasped the concepts. Plus the documentation on these methods isn't really helping - at least to me.
revalidate()
validate()
repaint()
How/when should these methods should be called? Or is this not the right way of what I should be doing, given these methods and the problem I am trying to solve?
Thank you for your time.
Basically you need two methods:
revalidate()
This method does the same as invalidate() but in AWT event dispatching thread (i will just call it Swing thread later on)). It updates container and all of its ancestors (parent containers in which this one is placed) layouting.
Basically if you either move something inside this container or place/remove components inside of it you should call this method (or invalidate in case you are performing it in Swing thread, for example inside any Mouse/Action listener body or just inside).
repaint()
This method forces component, all its sub-components (if it has them) and parent container (basically if this component is NOT opaque) to update what they are "painting".
Usually you don't need this method since all standard Swing components know when to repaint themselves and they do it on their own (that ofcourse depends on components UIs and some other things). This method might be useful in case you have your own specific components with some unique painting-way (for e.g. some custom selection over the components) and in some rare problematic cases with standard components.
Also the way this method acts depends on the components placement (due to some Swing painting optimizations) - if you have some massive repaints rolling you'd better optimize them to repaint only those parts (rects) that you actually need to repaint. For example if you change the component bounds inside any container the best choice is either to repaint its old bounds rect and new bounds rect OR repaint rect that contains both of those bounds, but not the whole container to avoid repainting uninvolved in the action components.
So, basically in your case after some changes with panels you should call revalidate on their container (or invalidate) followed by repaint (in case revalidate leaves some visual artefacts) again for the container.
Guess i didn't miss anything and i hope that now you know the basic meaning of those methods.
revalidate at the end of your update method like so .
updatePanel(int para){
.....
.....
this.revalidate(); //of course this refer to the panel
parent.revalidate(); // parent refer to the window
}
I am developing an Windows Forms application using VB.NET that offers the user to lookup addresses on Google Maps through a Web Browser. I can also successfully show the directions between two points to the user, as well as allow the user to drag the route as he/she pleases. My question now is - is it possible for me to get the lattitude/longitude information of the route, i.e. the overview_polyline array of encoded lattitude/longitude points and save it to e.g. a text file on my computer? Or is it possible to get a list of all the addresses located both sides of the route over the entire length of the route, and then save the data to a file on my computer? I'm using HTML files to access and display the Google Maps data in the Web Browser item.
Thank you
This is actually pretty simple if your just looking for the screen coordinates.
// this probably should be in your form initialization
this.MouseClick += new MouseEventHandler(MouseClickEvent);
void MouseClickEvent(object sender, MouseEventArgs e)
{
// do whatever you need with e.Location
}
if your strictly looking for the point in the browser, you need to consider the functions
browser.PointToClient();
browser.PointToScreen();
So, this method is usable if you know exactly where your form is (easy to get its coords) and where you webbrowser control is (easy to get coords of this as well since it's just a control in your form) and then, as long as you know how many pixels from the left or right, and from the top or bottom the image will be displayed, once you get the global mouse click coords (which is easy) you can predict where it was clicked on the image.
Alternatively, there are some scarier or uglier ways to do it here...
You can use the ObjectForScripting property to embed code to do this in the webbrowser. It's ugly to say the least. MSDN has some documentation on the process here: http://msdn.microsoft.com/en-us/library/system.windows.forms.webbrowser.objectforscripting.aspx
Because its really ugly, maybe a better solution is to use AxWebBrowser - it's ugly too but not so scary.
In addition, I found this post of someone wanting to do it on a pdf document, and a MSFT person saying its not possible, but really what he is trying to say is that it isn't built in, even with a pdf document its still possible to predict with high to certain accuracy where it was clicked if you use the first method i described. Here is the post anyway: http://social.msdn.microsoft.com/Forums/en/csharpgeneral/thread/2c41b74a-d140-4533-9009-9fcb382dcb60
However, it is possible, and there are a few ways to do it, so don't get scared from that last link I gave ya.
Also, this post may help if you want to do it in javascript:
http://www.devx.com/tips/Tip/29285
Basically, you can add an attribute on the image through methods available in the webbrowser control, you can add something like onclick="GetCoords();" so when it is clicked, the JavaScript function will get the coords, and then you can use javascript to place the values in a hidden input field (input type="hidden") which you can add through the webbrowser control, or if there is one already on the page, you can use that. So, once you place the coords using javacript into that input field, you can easily grab the value in that using the webbrowser control, eg:
webbrowser1.document.getElementById("myHiddenInputField").value
That will get the value in that field, which you've set through JavaScript. Also, the "GetCoords()" function i mentioned is called SetValues() in the javascript method link i provided above (in the devx.com site) but I named it GetCoords because it makes more sense and didn't want to confuse you with the actual name they used, you can change this to any name you want of course. Here is the javascript they were using, this only gets the coords into a variable, doesn't put it into a hidden input field, we will need to do that in addition (at the end of the javascript SetValues/GetCoords function).
function SetValues()
{
var s = 'X=' + window.event.clientX + ' Y=' + window.event.clientY ;
document.getElementById('divCoord').innerText = s;
}
These guys are just saving it inside a div element, which is visible to users, but you can make the div invisible if you want to use a div field, there is no advantage or disadvantage in doing that, you would just need to set the visible property to false using javascript or css, but still, it is easier to use a hidden input field so you don't need to mess with any of that.
Let me know how you get along.
I have an app that allows a user to use JQuery and Javascript to add images and position them in a div dynamically.
I would like to be able to submit the div with all the HTML to a WebService and receive back an image so we have a bitmap of the result of the end user's work.
I would prefer a solution in .Net as this is what I am most familiar with but am open to pretty much anything?
I would like to be able to submit the div with all the HTML to a WebService and receive back an image
Try http://browsershots.org!
Browsershots makes screenshots of your web design in different operating systems and browsers. It is a free open-source online web application providing developers a convenient way to test their website's browser compatibility in one place.
How about this. You load the html into a webbrowser control and then use the DrawToBitmap method. It doesn't show up on intellisense and this is probably not the best solution, but it works. Observe the DocumentCompleted event and add the following code:
private void webBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
var bmp = new Bitmap(100, 100);
var rect = new Rectangle(webBrowser.Location.X, webBrowser.Location.Y, webBrowser.Width, webBrowser.Height);
webBrowser.DrawToBitmap(bmp, rect);
bmp.Save("test.jpg", ImageFormat.Jpeg);
}
You'll probably want to change the width and height of that bitmap object (do it in some smart way or something). Hope this helps.
EDIT: I see now that you are using a webservice for this, hence this solution probably won't work. I'll leave it here just for information's sake.
I was not able to figure out how to do this by submitting the html and receiving an image but I was able to create and ASHX handler that returns a png file based on this blog post
which was good enough for my scenario.
He uses CutyCapt to take a screen shot of an existing web page, write the image to a folder on the webserver and return it.