umang gupta wants to chat
--- umang gupta wants to stay in better touch using some of Google's coolest new products. If you already have Gmail or Google Talk, visit: http://mail.google.com/mail/b-c3d03a4e24-bac53fd783-3fc1009d2fdc890c You'll need to click this link to be able to chat with umang gupta. To get Gmail - a free email account from Google with over 2,800 megabytes of storage - and chat with umang gupta, visit: http://mail.google.com/mail/a-c3d03a4e24-bac53fd783-2b21a1d38b Gmail offers: - Instant messaging right inside Gmail - Powerful spam protection - Built-in search for finding your messages and a helpful way of organizing emails into conversations - No pop-up ads or untargeted banners - just text ads and related information that are relevant to the content of your messages All this, and its yours for free. But wait, there's more! By opening a Gmail account, you also get access to Google Talk, Google's instant messaging service: http://www.google.com/talk/ Google Talk offers: - Web-based chat that you can use anywhere, without a download - A contact list that's synchronized with your Gmail account - Free, high quality PC-to-PC voice calls when you download the Google Talk client Gmail and Google Talk are still in beta. We're working hard to add new features and make improvements, so we might also ask for your comments and suggestions periodically. We appreciate your help in making our products even better! Thanks, The Google Team To learn more about Gmail and Google Talk, visit: http://mail.google.com/mail/help/about.html http://www.google.com/talk/about.html (If clicking the URLs in this message does not work, copy and paste them into the address bar of your browser). ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: status bars with multiples part
Add labels as children to the statusbar. You'll have to to it in code, since glade won't allow it for some reason. Peek inside the gtk source to see how to set the proper Gtk Style name for the added labels. (something with frame IIRC) From: Luiz Rafael Culik Guimaraes l...@xharbour.com.br Dear Friends is possible to create an statusbar in gtk with multiples parts? example part 1 show the filename, part 2 show row number, part 3 show col number, part 4 show ins/CAPS status on/off Regards Luiz ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: gtk_fixed_move called from size-allocated event freezes the GUI
On Wed, Dec 17, 2008 at 9:53 AM, Giuseppe Torelli colossu...@gmail.com wrote: I have a gtk fixed widget with a viewport as a child. I connected the size-allocated signal to the gtk fixed widget: Ok, I solved by using a gtk_alignment instead of gtk_fixed as suggested on www.gtkforums.com ;) -- Colossus Imagination, a simple and lightweight DVD slide show maker - http://imagination.sf.net Xarchiver, a Linux GTK+2 only archive manager - http://xarchiver.xfce.org ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
getwindowRect
Dear Friends is their any function or way in gtk to emulate GetWindowRect() and return the widget top/left/bottom/right position? Regards Luiz ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Accessing PixBuf pixels
It is almost correct except the fact that the rows of a pixbuf may be
padded. You are therefore supposed to use gdk_pixbuf_get_rowstride(pixbuf)
to get the distance between the rows.
Here is e.g. an example of vertically flip an image:
guint8 *buf = gdk_pixbuf_get_pixels(img);
gint w = gdk_pixbuf_get_width(img);
gint h = gdk_pixbuf_get_height(img);
gint rs = gdk_pixbuf_get_rowstride(img);
gint row_idx, col_idx;
for (row_idx=0; row_idxh/2; row_idx++)
{
guint8 *ptr1 = buf+rs * row_idx;
guint8 *ptr2 = buf+rs * (h-row_idx-1);
for (col_idx=0; col_idxw; col_idx++)
{
guint8 tmp_r = *ptr1;
guint8 tmp_g = *(ptr1+1);
guint8 tmp_b = *(ptr1+2);
guint8 tmp_alpha = *(ptr1+3);
*ptr1++ = *ptr2;
*ptr1++ = *(ptr2+1);
*ptr1++ = *(ptr2+2);
*ptr1++ = *(ptr2+3);
*ptr2++ = tmp_r;
*ptr2++ = tmp_g;
*ptr2++ = tmp_b;
*ptr2++ = tmp_alpha;
}
}
Hope this helps.
Regads,
2008/12/18 Luka Napotnik luka.napot...@gmail.com
Hello. I have some difficulties with manipulation of pixels in the
GdkPixbuf data buffer. I use the following loop to iterate thought
each pixel:
---
n_channels = gdk_pixbuf_get_n_channels(pixbuf);
guchar *pixel;
guchar *data = gdk_pixbuf_get_pixels(pixbuf);
for (i = 0; i width*height; i++) {
pixel = buffer + i * n_channels;
pixel[0] = 100; /* Red channel */
pixel[1] = 100; /* Green channel */
pixel[2] = 100; /* Blue channel */
pixel[3] = 100; /* Alpha channel */
}
---
Is this the right way to handle a RGBA buffer?
Greets,
Luka
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Re: gdk-pixbuf
Just loop over the pixels and calculate a gray level through a linear combination of R, G, and B. For example ppmtopgm uses: grey = .299 r + .587 g + .114 b Then assign the resulting gray to the red, green, and blue components, and voila! You've got yourself a gray scale image. See my previous post for an example of how to loop over a GdkPixbuf. Regards, Dov 2008/12/18 frederico schardong frede@gmail.com I need some API, which has the power to transform any RGB image to grayscale (8-bit) and I can map the image, creating a vast array[height in pixels][width in pixels] in which each cell has a value from 0 to 255, corresponding to the values of the pixels. With gdk-pixbuf can I do that? ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
