RE: [flexcoders] Re: Custom Component Width when 100%?
measure requires some math, usually. you will never call
getExplicitOrMeasuredWidth() on yourself since that just reads the
meausredWidht property you are trying to set.
If I had a component that drew a circle and a triangle next to it, my
measure would look like
measuredWidth= circle.getExplicitOrMeasuredWidth() +
triangle.getExplicitOrMeasuredWidth();
measuredHeight = Math.max( circle.getExplicitOrMeasuredHeight(),
triangle.getExplicitOrMeasuredHeight();
In other situations I know I want to be 100 wide so I just set
measuredWidth = 100.
You'll have to find a way to know how big you want to be.
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Nate Pearson
Sent: Wednesday, March 28, 2007 9:43 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: Custom Component Width when 100%?
In my measure function I have:
override protected function measure():void{
measuredWidth = getExplicitOrMeasuredWidth()
measuredHeight = getExplicitOrMeasuredHeight()
}
That makes them both zero though. although my updateDisplayList gets
called twice my measure function is only called once. How should I be
setting my measure function? If we get this worked out I think I'll
be good to go, if not ill post the code. Thanks so much for your help
Alex.
--- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
, Alex Harui [EMAIL PROTECTED] wrote:
In theory, if you started with UIComponent, you need to implement a
measure() method to tell the parent how big you want to be. That
parent
will then call setActualSize which should result in your
updateDisplayList being called with non-zero values. Again, if
extending UIComponent, you should be able to draw or add shapes in
updateDisplayList without causing a second call to updateDisplayList
providing that your measure() method returns the same values and
nobody
else called invalidateDisplayList.
It feels like you're not quite following the formula somehwere. You
could post the class code I suppose...
From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
] On
Behalf Of Nate Pearson
Sent: Tuesday, March 27, 2007 4:37 PM
To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
Subject: [flexcoders] Re: Custom Component Width when 100%?
Ahhh HA! I was reading the adobe documentation and it turns out that
when you do addchild() it calls updateDisplayList again. This is why
my program wasn't working, I had an infinite loop when I called
addchild.
I fixed it by adding an if function with a flag.
if (_newBackground){
...
}
Since my updatedisplaylist was being called twice, once with 0
unscaledWidth and once with an unscaledWidth, I had to add another
condition.
if (_newBackground unscaledWidth != 0) {
...
}
Now I can't seem to get the component to scale with the rest of the
app when the browser window opens. I'm going to start a new thread
for that question.
-Nate
--- In flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
, Nate Pearson napearson99@ wrote:
So I think i got unScaledWidth to work during UpdateDisplayList.
When
I debug it seems like it's called twice. Once with 0 unscaledWidth
and once with the correct unScaledWidth. Should I be worrying about
this? I didn't override the measure function. Should I?
So to draw in UpdateDisplayList you have to manipulate graphics like
this:
graphics.lineStyle(0,0x00, 0);
graphics.beginFill(0xff, 1);
graphics.drawRect(0,0,unscaledWidth/2,unscaledHeight);
graphics.endFill();
But what if I want to draw shapes or UIcomponents? That's why It
wasn't working for me before, i was drawing like this:
var shape:Shape = new Shape();
shape.graphics.lineStyle(0,0x00, 0);
shape.graphics.beginFill(0xff, 1);
shape.graphics.drawRect(0,0,unscaledWidth/2,unscaledHeight);
shape.graphics.endFill();
//When i do the add child my program won't load!
//addChild(shape);
I watched Ely's component video and it says I can add UIComponents,
sprites and shapes to UpdateDisplayList. Does anyone know what I'm
doing wrong?
Thanks!
-Nate
--- In flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com , Alex Harui aharui@ wrote:
You can always call validateNow() to force validation, but you
shouldn't
be drawing in commitProperties in most cases. Most drawing should
be in
updateDisplayList
From: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
] On
Behalf Of Nate Pearson
Sent: Monday, March 26, 2007 3:53 PM
To:
RE: [flexcoders] Re: Custom Component Width when 100%?
In theory, if you started with UIComponent, you need to implement a
measure() method to tell the parent how big you want to be. That parent
will then call setActualSize which should result in your
updateDisplayList being called with non-zero values. Again, if
extending UIComponent, you should be able to draw or add shapes in
updateDisplayList without causing a second call to updateDisplayList
providing that your measure() method returns the same values and nobody
else called invalidateDisplayList.
It feels like you're not quite following the formula somehwere. You
could post the class code I suppose...
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Nate Pearson
Sent: Tuesday, March 27, 2007 4:37 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: Custom Component Width when 100%?
Ahhh HA! I was reading the adobe documentation and it turns out that
when you do addchild() it calls updateDisplayList again. This is why
my program wasn't working, I had an infinite loop when I called
addchild.
I fixed it by adding an if function with a flag.
if (_newBackground){
...
}
Since my updatedisplaylist was being called twice, once with 0
unscaledWidth and once with an unscaledWidth, I had to add another
condition.
if (_newBackground unscaledWidth != 0) {
...
}
Now I can't seem to get the component to scale with the rest of the
app when the browser window opens. I'm going to start a new thread
for that question.
-Nate
--- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
, Nate Pearson [EMAIL PROTECTED] wrote:
So I think i got unScaledWidth to work during UpdateDisplayList. When
I debug it seems like it's called twice. Once with 0 unscaledWidth
and once with the correct unScaledWidth. Should I be worrying about
this? I didn't override the measure function. Should I?
So to draw in UpdateDisplayList you have to manipulate graphics like
this:
graphics.lineStyle(0,0x00, 0);
graphics.beginFill(0xff, 1);
graphics.drawRect(0,0,unscaledWidth/2,unscaledHeight);
graphics.endFill();
But what if I want to draw shapes or UIcomponents? That's why It
wasn't working for me before, i was drawing like this:
var shape:Shape = new Shape();
shape.graphics.lineStyle(0,0x00, 0);
shape.graphics.beginFill(0xff, 1);
shape.graphics.drawRect(0,0,unscaledWidth/2,unscaledHeight);
shape.graphics.endFill();
//When i do the add child my program won't load!
//addChild(shape);
I watched Ely's component video and it says I can add UIComponents,
sprites and shapes to UpdateDisplayList. Does anyone know what I'm
doing wrong?
Thanks!
-Nate
--- In flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com , Alex Harui aharui@ wrote:
You can always call validateNow() to force validation, but you
shouldn't
be drawing in commitProperties in most cases. Most drawing should
be in
updateDisplayList
From: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
] On
Behalf Of Nate Pearson
Sent: Monday, March 26, 2007 3:53 PM
To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
Subject: [flexcoders] Re: Custom Component Width when 100%?
I can't seem to get the width/height at measure() or
updateDisplayList(). Is there a specific function I have to call?
Isn't there a way to get the height/width before measure? I'm
drawing
during commit properties so I would like to get it then.
Thanks for your reply.
--- In flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
, Alex Harui aharui@ wrote:
It depends on when you ask. Components have a multi-stage
validation
mechanism. Their properties get set in stage1, measured in stage2,
layed out in stage 3. Until measurement, they are zero
width/height
From: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
] On
Behalf Of Nate Pearson
Sent: Monday, March 26, 2007 1:09 PM
To: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
Subject: [flexcoders] Custom Component Width when 100%?
I created a custom component that works great when the width is
specified. However, when I try to set the width to a percent (of
the
parent) it returns 0. How to I reference the parent's width? I
tried
getExplicitOrMeasuredWidth but it didn't work.
Thanks in advance for the help.
RE: [flexcoders] Re: Custom Component Width when 100%?
You can always call validateNow() to force validation, but you shouldn't be drawing in commitProperties in most cases. Most drawing should be in updateDisplayList From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Nate Pearson Sent: Monday, March 26, 2007 3:53 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: Custom Component Width when 100%? I can't seem to get the width/height at measure() or updateDisplayList(). Is there a specific function I have to call? Isn't there a way to get the height/width before measure? I'm drawing during commit properties so I would like to get it then. Thanks for your reply. --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com , Alex Harui [EMAIL PROTECTED] wrote: It depends on when you ask. Components have a multi-stage validation mechanism. Their properties get set in stage1, measured in stage2, layed out in stage 3. Until measurement, they are zero width/height From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of Nate Pearson Sent: Monday, March 26, 2007 1:09 PM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] Custom Component Width when 100%? I created a custom component that works great when the width is specified. However, when I try to set the width to a percent (of the parent) it returns 0. How to I reference the parent's width? I tried getExplicitOrMeasuredWidth but it didn't work. Thanks in advance for the help.
