Determine if two RealBasic.Rect objects are equal

General
1

I know I can do this…

  If r.left<>r2.left Or _
  r.top<>r2.top Or _
  r.width<>r2.width Or _
  r.height<>r2height Then changed=True

but with all the other RECT goodies, I was hoping there was a easier (and faster) way?

3

Psst try putting code inside [code] blocks on the forum! It makes them formatted nicely!

An example code block where things are monospaced and indented!

4

was hoping for something more like

if R.EQUALS(r2) then
5

write an extension method once & use it as you describe

but no it doesnt exist

6

Why do I have a Rect.Equal method available to me? Some plugin?

if r1.Equal( r2 ) then // this works for me
7

[quote=164433:@Kem Tekinay]Why do I have a Rect.Equal method available to me? Some plugin?

if r1.Equal( r2 ) then // this works for me [/quote]
Must be
Its not in the frameworks

8

Looks like one of the free functions from Einhugur.

9

It does not work here. "Type Realbasic.Rect has no member named “equal”.

But this works fine :

if r1 = r2 then
10

No, that doesn’t identify two different rects with the same dimensions. I tested.

11

Right, surely that’s just going to test if the two variables point to the same actual object.

12

It would nice if you could use an extension method to extend Operator_Compare and the like to native classes.

13

I may be stupid, but this says “equal” :

[code] dim r1 as new realbasic.rect(0,0,100,75)
dim r2 as new realbasic.rect(0,0,100,75)

if r1 = r2 then
msgbox “equal”
else
msgbox “not equal”
end if[/code]

If I change a dimension on one of the rectangles, I get “not equal”…

14

Operator_Compare is implemented in the Xojo framework, so it works to use =.

15

Well, I’ll be. Michel, try it again without the “realbasic” namespace. We are seeing two different behaviors here.

  dim r1 as new Rect(0,0,100,75)
  dim r2 as new Rect(0,0,100,75)
  
  if r1 = r2 then
    msgbox "equal"
  else
    msgbox "not equal"
  end if

That’s how I originally tested it.

16

[quote=164452:@Kem Tekinay]Well, I’ll be. Michel, try it again without the “realbasic” namespace. We are seeing two different behaviors here.

  dim r1 as new Rect(0,0,100,75)
  dim r2 as new Rect(0,0,100,75)
  
  if r1 = r2 then
    msgbox "equal"
  else
    msgbox "not equal"
  end if

That’s how I originally tested it.[/quote]

It does not even execute. “Can’t find a type with this name”. Maybe you have a Rect class in your plugins somewhere ?

17

I guess so. I wish everyone would either use namespaces or otherwise distinguish their method/class names.

18

[quote=164441:@Michel Bujardet]I may be stupid, but this says “equal” :

[code] dim r1 as new realbasic.rect(0,0,100,75)
dim r2 as new realbasic.rect(0,0,100,75)

if r1 = r2 then
msgbox “equal”
else
msgbox “not equal”
end if[/code]

If I change a dimension on one of the rectangles, I get “not equal”…[/quote]
The above is also correct when using xojo.core.rect on iOS.

19

That was a recent proposition from Christian. Guess in Einhugur’s time it was less of a concern.