Hi,

I would like to know if its possible to save the calendar as a png without displaying it in a JFrame.

Essentially i will be running the resourceView application on a server (no display) and i wish to know if its possible to save content from the calendar knowing i dont have a GUI. This is the line i use to get the graphics when i have a GUI and save it in the format i need, it cant be applied the other way around

calendar.print(graphics, format,0); 

Its probably a more common issue in java swing, so any insights in the request will be appreciated

Hi again,
it doesnt seem to work, isnt the object calendar depended on the GUI to save/print anything?
When i use the line ''calendar.createImage()'' in this line, i get

BufferedImage bImg = calendar.createImage(true);
		if(ImageIO.write(bImg, "png", new File("SavePNG.png"))){
			System.out.println("saved image");
		}
		else{
			System.out.println("image not saved");
		} 

i get this error
Error: java.lang.NullPointerException: Cannot invoke "java.awt.image.BufferedImage.createGraphics()" because "<local7>" is null

thanks again

Hey,
This was very much helpful but i am getting another issue regarding

calendar.setViewport(calendar.getDate(), calendar.getEndDate(), true); 

When i save the calendar, the viewport is not within the ''StartDate'' and ''EndDate'' i setup. is it because viewport is dependant on the container's size? Which in this case, i do not have because there is no GUI.

FYI, the new jar you provided does not include the fix you made in the old post
https://mindfusion.eu/Forum/YaBB.pl?num=1731680248/13

reply#13


Cordially.

Hi,
That was an error from my part, it works and there is no exception anymore

I'll be waiting for the changes provided by your developper

Thanks again for the assistance.


Cordially

Hi, i still get errors
so just to go back through all the necessaries i need for this to work
- i set System.setProperty("java.awt.headless", "true");
- create the calendar, setBounds(0,0, 700, 400);
- calendar.setViewport(startDate, endDate, true);
- BufferedImage image = calendar.createImage(true, 700,400);
- i call ImageIO.write(...)

This still gives me the folllowing error.

Hi,
So far its working alright, but i need to know something. How do i disable displaying lanes that arent fully fitting in the chosen bounds. the purpose of this is to figure out where to break page when printing, some lanes are cut in half with this (as shown in the image). i tried using

calendar.getElementBounds(CalendarElement.ResourceViewHeader,8).getBounds().getMaxY() 

but this didnt work because it cannot tell when the lane is fully displayed or not.
Maybe adding another overloaded method for calendar.createImage() to include elementalBounds? this way we may be able to cut printing according to fully visible lanes

Cordially

Hi,
Thank you for these solutions. i come with a different issue now. i wish to save the calendar onScreen and not the one on a headless server as before here. the issue i come across on is that , the calendar uses the JPanel bounds so i cant use calendar bounds.
I know i can use this line to save a full calendar image.

calendar.createImage(false) 

this line gets an image of the whole calendar and its resources, however my goal is to save the image on different pages and for that i could use this line to know where to break page not cut the lane in half.

double hm = calendar.getElementBounds(CalendarElement.ResourceViewCell,i).getMaxY(); 

this time it doesnt work because its within JPanel bounds, cant acces all the elements bounds outside the panel

In short, i want to grab the full image generated by the calendar and cut multiple sub images from it, for that i need to know where to cut the lanes correctly. you can notice in the picture, all lanes outside the panel are 0

Cordially

Hi,
for me to copy the view settings i would need to acces the setter for resourceViewSettings and itemSettings. i can only acces the getter.
my alternative would be to copy everything inside resourceviewsettings one by one but it would be preferable if i can use the setter.

Cordially