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Forum Topic - Calculate Window Insets: (11 Items)

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William Smith(deleted)

02/24/2009 9:47 AM

post22821

I'm currently using the call PtFrameSize by passing in my render flags to get the insets for my client area of a window 
created with PhWindowOpen. 

My problem is that PtFrameSize is reporting 21, 5, 5, 5, but what is drawn is with 24, 6, 6, 6. I noticed that the black
 line (as if I specified Ph_WM_RENDER_INLINE) is being drawn. That addresses the 6 vs the 5, but still leaves the 21 vs 
23 instead of 24.

Also, since I'm not using widgets, I can't use PtWindowGetFrameSize which is the replacement function for PtFrameSize. 
Anybody know a way to get the correct inset values?

Thx,
Bill

Misha Nefedov

02/24/2009 10:06 AM

post22825

Re: Calculate Window Insets

#include <Ph.h>
#include <photon/PtConnectionClient.h>
#include <photon/WmMsg.h>
#include <photon/WmReply.h>

int WmSendMessage(PtConnectionClient_t *client, WmMsg_t *request, WmReply_t *reply, unsigned int reply_len);

int get_frame_size( PhRid_t rid, PhRect_t *rect)
{
 WmMsg_t     request;
 WmReply_t   reply;

 request.hdr.type = WM_REQUEST_FRAME_SIZE;
 request.hdr.rid = rid;

 if( -1 == WmSendMessage(NULL, &request, &reply, sizeof(WmReply_t) ) ) {
   return -1;
 } 
 memcpy(rect, &(reply.data.frame.borders), sizeof(PhRect_t));
 return (0);
}

William Smith(deleted)

02/24/2009 11:34 AM

post22836

Re: Calculate Window Insets

Thanks for the quick reply. Unfortunately, I'm getting a GPF when it hits the WmSendMessage line. Any ideas?

Misha Nefedov

02/24/2009 11:56 AM

post22841

Re: Calculate Window Insets

backtrace?

William Smith(deleted)

02/24/2009 2:22 PM

post22852

Re: Calculate Window Insets

Unfortunately getting a backtrace from our app is difficult because it is a jni library used in j9. However, I wrote a 
simple test app that behaves the same way. The backtrace generated is:

Thread [1] (Suspended: Signal 'SIGSEGV' received. Description: Segmentation fault.)	
	6 PtAppCreatePulse()  0xb82e6af7	
	5 client_attach()  0xb82376f8	
	4 PtConnectionFindName()  0xb82378ae	
	3 WmConnect()  0xb82f09af	
	2 WmSendMessage()  0xb82f0a4a	
	1 main() C:\ide-4.5-workspace\insets\insets.c:77 0x08048a9d	

I've attached the source file as well.

Bill

Attachment:

insets.c 2.41 KB

Misha Nefedov

02/24/2009 2:44 PM

post22855

Re: Calculate Window Insets

Try to use PtInit(NULL) instead of PhAttach();

William Smith(deleted)

02/24/2009 3:01 PM

post22858

Re: Calculate Window Insets

Thanks Misha. That did the trick. Since I don't use any widgets and have my own event loop, are there any negatives to 
using PtInit? I couldn't see a change in the memory footprint.

Misha Nefedov

02/24/2009 4:12 PM

post22861

Re: Calculate Window Insets

I don't think there are any implications for you case.

William Smith(deleted)

02/25/2009 11:56 AM

post22917

Re: Calculate Window Insets

Unfortunately, I ran into a problem with this solution. Calling PtInit prevents me from receiving any events with 
PhEventNext. Any thoughts on how to get around this?

Misha Nefedov

02/25/2009 12:39 PM

post22920

Re: Calculate Window Insets

You will need to do this manually.
After you created your window, query it with PhRegionQuery(). Save its origin and size. Query it’s parent (if the 
parent is 0, then there is no PWM running). Look at the parent’s region size and calculate the border based on the 
windows origin and size.

William Smith(deleted)

02/26/2009 10:03 AM

post22978

Re: Calculate Window Insets

Thx Misha. I was able to get it to work that way.

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