Another problem with display.save()

Solar2D General Questions/Discussion
1

Hi there!
I use display.save() trying to save an image that i want to use later.
My problem is this: When I save the image, this one is what i see instead of watching the elements I’ve got before pressing the save button, i.e., I want to save the image but not to watch the result (image.jpg) in my iPhone screen.

Is it possible?, what am I doing wrong?

This is my code:

display.setStatusBar( display.HiddenStatusBar )  
local ui=require("ui")  
  
local width,height=display.contentWidth,display.contentHeight  
local background=display.newImage("background.jpg")  
local rect=display.newRect(0,(height-80),width,height)  
rect:setFillColor(174,78,0)  
local my\_image=display.newImage("foo.png",90,90)  
  
local function saving()  
 local baseDir = system.DocumentsDirectory  
 local toSave=display.newGroup()  
 toSave:insert(background)  
 toSave:insert(my\_image)  
 display.save(toSave,"image.jpg",baseDir)  
end  
  
local save\_button = ui.newButton{  
 default = "save\_button.png",  
 over = "save\_button.png",  
 onRelease = saving,  
 emboss = true  
}  
  
save\_button.x=width/2  
save\_button.y=height-35

TIA [import]uid: 44013 topic_id: 9718 reply_id: 309718[/import]

2

can you elaborate a bit more.

c. [import]uid: 24 topic_id: 9718 reply_id: 35450[/import]

3

Hello!

Thanks for your reply, Carlos!
That’s all my code.
Before pressing the save button that’s what I can see in the simulator: www.ogrove.net/before.png
And after pressing the save button, that’s what I see: www.ogrove.net/after.png

What I want is to save the image but watch the scene and work as before pressing the button.
Now, pressing the button the image is what I get and I can’t interact with the app.

Could you tell me what am I doing wrong?

TIA [import]uid: 44013 topic_id: 9718 reply_id: 35727[/import]

4

thats because you are creating a new group and inserting the image into the group. the stacking order of the group will put the image on top.

ergo why you can’t go back

c. [import]uid: 24 topic_id: 9718 reply_id: 35729[/import]

5

That’s right!, but I need to create a new group, isn’t? I think it is not possible to do it other way…
Must I send the image to the bottom of the group? Is it a good practice?
If I try to remove the image I don’t see anything at the scene.
I’m confused… I thing it would possible to save the image and don’t added it to the stack (only create a jpg file) [import]uid: 44013 topic_id: 9718 reply_id: 35730[/import]

6

or you could just do

toSave:insert(display.newImage("foo.jpg",0,0))  
display.save(toSave,"image.jpg",baseDir)  
toSave:RemoveSelf();

c
[import]uid: 24 topic_id: 9718 reply_id: 35732[/import]

7

Mmmmm… well, I need to save the background too (because can’t save png images), and my idea is to add more elements to the group “toSave”
I don’t know if I am understanding you well, but I think with your code I only could save my foo.png image, isn’t it?

As you have made noticed, I am a newbie and I appreciate so much your help.

This is my code now, after your instructions:

display.setStatusBar( display.HiddenStatusBar )  
local ui=require("ui")  
  
local width,height=display.contentWidth,display.contentHeight  
local background=display.newImage("background.jpg")  
local rect=display.newRect(0,(height-80),width,height)  
rect:setFillColor(174,78,0)  
local my\_image=display.newImage("foo.png",90,90)  
  
local function saving()  
 local baseDir = system.DocumentsDirectory  
 local toSave=display.newGroup()  
 local my\_image2=my\_image  
 toSave:insert(display.newImage("background.jpg"))  
 toSave:insert(display.newImage("foo.png",90,90))  
 display.save(toSave,"image.jpg",baseDir)  
 toSave:removeSelf()  
end  
  
local save\_button = ui.newButton{  
 default = "save\_button.png",  
 over = "save\_button.png",  
 onRelease = saving,  
 emboss = true  
}  
  
save\_button.x=width/2  
save\_button.y=height-35

[import]uid: 44013 topic_id: 9718 reply_id: 35739[/import]

8

On this way, it seems it is a duplication of code, isn’t it? [import]uid: 44013 topic_id: 9718 reply_id: 35740[/import]

9

Carlos??
Anyone?? [import]uid: 44013 topic_id: 9718 reply_id: 36117[/import]

10

call display.captureScreen( ) then the save the resulting image.

hide all elements that you don’t want on the screen right before calling display.captureScreen( )

thens how them

c. [import]uid: 24 topic_id: 9718 reply_id: 36167[/import]

11

Thanks, Carlos!
I’ll try as you say and I tell you.
[import]uid: 44013 topic_id: 9718 reply_id: 36305[/import]