Solved

How to make a Gtk+ widget overlap an osgGtk widget

Posted on 2010-11-18
3
714 Views
Last Modified: 2012-05-10
Hello Experts!

I have a Gtk+ application with a widget that displays an OSG view using the osgGtk project (see http://sourceforge.net/projects/osggtk/).

I am using a gtk_fixed widget so that I can place all of my widgets exactly where I want them, and I want to make the OSG widget the size of the entire screen and then place buttons, images, etc. on top of the OSG widget.

Normally I can use the gtk_fixed to make widgets overlap if I want to, but the osgGtk widget is always on top of everything else, despite my best efforts. Is there a way to tell Gtk+ that I always want a widget to appear in the foreground, on top of whatever is behind it? I'll post some skeleton code to show what I'm doing below.

Please let me know how I can help and thanks in advance for your help!

P.S. There's no Gtk+ or OSG zones in Experts Exchange, so if anyone can suggest a different zone than what I've listed, please let me know!
GtkWidget *pFixedContainer;

GtkWidget *pFrameImage;

GtkWidget *pOsgWidget;



...

// make the image widget and the osg widget

...



gtk_widget_set_size_request(pOsgWidget, SCREEN_WIDTH, SCREEN_HEIGHT);



gtk_widget_set_size_request(pFrameImage, 100, 50);



...



gtk_fixed_put(GTK_FIXED(pFixedContainer), pOsgWidget, 0, 0);

gtk_fixed_put(GTK_FIXED(pFixedContainer), pFrameImage, 100, 100);



// I want the pFrameImage to be on top of the pOsgWidget, but the pOsgWidget is always on top!

Open in new window

0
Comment
Question by:ehensens
  • 2
3 Comments
 
LVL 34

Expert Comment

by:Duncan Roe
ID: 34177462
"Always on top" is is implemented by the Window Manager. I know you can talk to the WM in Tk (which is about the extent of my graphics experience) - can you do it with GTK?
0
 

Accepted Solution

by:
ehensens earned 0 total points
ID: 34485733
I had forgotten about this question, I apologize for letting it go abandoned. The answer to this question is that the Gtk widget that you display from the osgGtk source is derived from a GtkDrawingArea widget, which does not have a transparent background.
0
 

Author Closing Comment

by:ehensens
ID: 34514866
I am accepting my own solution because there was not much feedback, and I found out the answer on my own.
0

Featured Post

What Should I Do With This Threat Intelligence?

Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

Join & Write a Comment

Introduction We as admins face situation where we need to redirect websites to another. This may be required as a part of an upgrade keeping the old URL but website should be served from new URL. This document would brief you on different ways ca…
Setting up Secure Ubuntu server on VMware 1.      Insert the Ubuntu Server distribution CD or attach the ISO of the CD which is in the “Datastore”. Note that it is important to install the x64 edition on servers, not the X86 editions. 2.      Power on th…
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
The viewer will learn how to clear a vector as well as how to detect empty vectors in C++.

758 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now