Re: Saving treeview state
Am Donnerstag, den 08.02.2007, 18:24 -0500 schrieb Dave Moore: If this is a stupid question, please feel free to flame me. I have an app that has a treeview. I would like to save some state information about this treeview to restore the next session. Namely I would like to remember the column sizes and positions so the user doesnt have to keep resetting them everytime he loads the app. Is there a simple/obvious way to do this? I've been googling for a few hours now and nothing is jumping off my screen. Thanks in advance. Dave ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list Hi, maybe you can get the columns with: 'gtk_tree_view_get_column' and then you can get the width property of the column with: 'gtk_tree_view_column_get_width' for the other properties there are also functions to get the value. On restoring, I think you must set the width with this: 'gtk_tree_view_column_set_min_width' or 'gtk_tree_view_column_set_fixed_width' I never tried. But I think this should work. I'm interested if this works. -- Jens Sauer [EMAIL PROTECTED] ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: how to make an animation ;)
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On Fri, Feb 09, 2007 at 01:02:20AM +0100, Olivier Ramare wrote:
Enrico Sardi wrote:
Hi all!
I want to make a simple animation in gtk with a pixbuf that rotates, how
can I make it?
For every change of state of my application, the image changes.
I have 10 files with the rotated images (I've created them with
a repeated use of gimp) and I use the following code:
--
#define GTK_FLUSH while (gtk_events_pending()) gtk_main_iteration();
void wait_fine(float intervalle)
{
float lheure = (clock()/CLOCKS_PER_SEC);
while(((clock()/CLOCKS_PER_SEC) - lheure) intervalle){;};
}
The problem with this is that it'll keep your program (and most of your
computer ;) busy with the job. Better use a timer (or an idle) callback.
Even better: pixbufs know about animations and do it for you! With
gdk_pixbuf_animation_new_from_file()[1] you can load an animation from a
file (there are other functions aroud there if you want to build-up the
anim frame-by-frame). You can put this animated pixbuf in a GtkImage the
usual way with gtk_image_set_from_pixbuf()[2]
I'm too bogged down to cook up an example right now, but this might
help.
-
[1]
http://developer.gnome.org/doc/API/2.0/gdk-pixbuf/gdk-pixbuf-animation.html#gdk-pixbuf-animation-new-from-file
[2]
http://developer.gnome.org/doc/API/2.0/gtk/GtkImage.html#gtk-image-set-from-pixbuf
Regards
- -- tomás
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.1 (GNU/Linux)
iD8DBQFFzDy9Bcgs9XrR2kYRAvvaAJ0RUkyetf/UJV0A0fI6pwddCq9xdQCfaPg3
rzNrjOoa0qgtF4N+0DWx4pw=
=wasb
-END PGP SIGNATURE-
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Catching the row deleted from a GtkTreeModel implementation
I'm keeping some summary fields of a GtkListStore and I need to update them on every model change. The problem is while catching the row-deleted signal the row is yet deleted, so I can't access the row content to update my summary fields. How can I do it? Thanks, -- Nicola ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
RE: Catching the row deleted from a GtkTreeModel implementation
how r u deleting the row? It should be either through some key-press or mouse-click, in either case u must select the row before selecting. So...If it is through a key-press, catch the key-press signal and if it is through a mouse-click, catch mouse-click signal and access the selected row. Now do all the updations u want and then delete the row from the model. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Fontana Nicola Sent: Friday, February 09, 2007 2:36 AM To: gtk-app-devel-list@gnome.org Subject: Catching the row deleted from a GtkTreeModel implementation I'm keeping some summary fields of a GtkListStore and I need to update them on every model change. The problem is while catching the row-deleted signal the row is yet deleted, so I can't access the row content to update my summary fields. How can I do it? Thanks, -- Nicola ___ 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
Re: Catching the row deleted from a GtkTreeModel implementation
On 2/9/07, Suma H.S [EMAIL PROTECTED] wrote: how r u deleting the row? It should be either through some key-press or mouse-click, in either case u must select the row before selecting. So...If it is through a key-press, catch the key-press signal and if it is through a mouse-click, catch mouse-click signal and access the selected row. Now do all the updations u want and then delete the row from the model. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Fontana Nicola Sent: Friday, February 09, 2007 2:36 AM To: gtk-app-devel-list@gnome.org Subject: Catching the row deleted from a GtkTreeModel implementation I'm keeping some summary fields of a GtkListStore and I need to update them on every model change. The problem is while catching the row-deleted signal the row is yet deleted, so I can't access the row content to update my summary fields. How can I do it? I would suggest a different approach: add your own column to the GtkListStore which stores your information summary as a GObject (so you know when that object is destroyed). If you can't add a column to the GtkListStore, then I suggest creating another GtkTreeModel implementation which proxies the GtkListStore and adds a new column (in this case you'll have to write a method to delete data so you'll know when it's deleted) - see the GtkTreeModelFilter implementation for example. Regards, Vivien ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Catching the row deleted from a GtkTreeModel implementation
On Friday 09 February 2007 11:39, Suma H.S wrote: how r u deleting the row? It should be either through some key-press or mouse-click, in either case u must select the row before selecting. So...If it is through a key-press, catch the key-press signal and if it is through a mouse-click, catch mouse-click signal and access the selected row. Now do all the updations u want and then delete the row from the model. The model management is inside a library and it is shared by more applications. Of course I can provide a function to call before a delete operation, but I am short in memory and I'm sure before or after to forget to call this function in the application. -- Nicola ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Catching the row deleted from a GtkTreeModel implementation
On Friday 09 February 2007 11:55, Vivien Malerba wrote: I would suggest a different approach: add your own column to the GtkListStore which stores your information summary as a GObject (so you know when that object is destroyed). This approach seems quite complex but yes, it makes the job. Maybe I'll try to use a custom G_TYPE_BOXED instead of a GObject to improve performances, but the concept is the same. Thank you for your suggestion, -- Nicola ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: how to make an animation ;)
[EMAIL PROTECTED] pronuncio' le seguenti parole il 09/02/2007 10:19: Hi Tomas! The problem with this is that it'll keep your program (and most of your computer ;) busy with the job. Better use a timer (or an idle) callback. Even better: pixbufs know about animations and do it for you! With gdk_pixbuf_animation_new_from_file()[1] you can load an animation from a file (there are other functions aroud there if you want to build-up the anim frame-by-frame). You can put this animated pixbuf in a GtkImage the usual way with gtk_image_set_from_pixbuf()[2] I saw gdk_pixbuf_animation_new_from_file but it only works with an animated file as input while I need to build the animation from a series of indipendent files...thanks for the help! Enrico ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GObject docs improvements
Hi, Quoting David Ne?as (Yeti) [EMAIL PROTECTED]: On Thu, Feb 08, 2007 at 08:44:50AM +0100, Stefan Kost wrote: What I like to ask you is to reply to this mail and tell us what you don't understand yet, point out parts that can be improved, let us know if there are some nagging concerns about the way GObject works. Deriving from classes that implement interfaces and changing the implementation would worth an explanation and example. Huh, sounds scary. We can do this. Do you have pointers to an example? While checking for an example, just noticed that the Implemented Interfaces stuff in Gtkdoc seems quite borked. Need to fix that. If possible then please checkout the latest version and base your feedback on that one: svn co http://svn.gnome.org/svn/glib/trunk glib cd glib ./autogen.sh --prefix=$HOME/test I believe --enable-gtk-doc is missing here. Yes. Keep forgetting that too. make cd docs/reference/gobject evince html/index.html Yeti Thanks for the feedback Stefan ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: how to make an animation ;)
Hi, I would ask gimp to create the animated part. Open gimp with your first image. Create as many layers as you have images. Open each of the images and copy them in the successive layers Use menu item Filter-Animation-play or replay I'm not sure to check the partial result. Use Filter-Animation-optimise (GIF) to reduce the size. Use File-Save as A dialog wil open and ask you if you want the image flattened (all layers on one image) or if you want to register that as an animation. You want the latter and the job if done. I don't know how to automate this algorithm since I'm not script-fu writer --- FWIW :-) Olivier ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GObject docs improvements
Sorry, I forgot a CC to the list. On 2/9/07, Shixin Zeng [EMAIL PROTECTED] wrote: Thanks. But I want some explanation about the interface of gobject. I can't understand what it is from a sentence like GType's Interfaces are very similar to Java's interfaces. because I know nothing about Java, and I don't want to dig into Java just for this concept. On 2/8/07, Stefan Kost [EMAIL PROTECTED] wrote: hi, yesterday I committed a first batch of cleanups to the GObject docs. http://developer.gnome.org/doc/API/2.0/gobject/index.html IMHO this is a crucial documentation for the GNOME platform and it can be improved further. Marc-Andre Lureau and Zeeshan Ali already joined in the quest to improve this. What I like to ask you is to reply to this mail and tell us what you don't understand yet, point out parts that can be improved, let us know if there are some nagging concerns about the way GObject works. Are there details that should be explained by a picture? If possible then please checkout the latest version and base your feedback on that one: svn co http://svn.gnome.org/svn/glib/trunk glib cd glib ./autogen.sh --prefix=$HOME/test make cd docs/reference/gobject evince html/index.html you don't need to install it. Thanks! Stefan ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list -- Best Regards Shixin Zeng -- Best Regards Shixin Zeng ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: when and where to destroy popup menu?
Zhang Yang wrote: Hello. I have created a popup menu in my function(list below). But I have a question when and where to destroy it?. I see in your sample below you are not connecting the popup_menu signal, which is the one you want for context menus. You don't need to destroy it, Gtk does that for you, after dispatching the proper event from the selected menu item. -- Guy Rouillier ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: scrolledview
On Thu, 2007-02-08 at 05:53 +, [EMAIL PROTECTED] wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On Wed, Feb 07, 2007 at 08:32:26PM +0100, Mehmet YASAR wrote:
[EMAIL PROTECTED] a écrit :
[...]
how can I know that all the widget have done their size negotiations ?
I can't rely on the realized signal since the gtkvbox is already
realized ...
I'd put my bets on the widget's size-allocate signal -- but I don't know
for sure.
I had already done some experimentation and I've found that widgets may
get more than one size-allocate signal.
[...]
Yes, I suppose you'd have to track the size as it changes. If you have
to do an action hwenever the size really, truly changed (meaning it has
been displayed and all is quiescent), perhaps an idle handler would be
the right place.
Regards
- -- tomás
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.1 (GNU/Linux)
iD8DBQFFyrrRBcgs9XrR2kYRAv5IAJ492lpDlVYRLNQMTW5tyQg7tyzCtQCfdpVr
CbfgmDGn4JNUmPkHHam9lZI=
=UcZq
-END PGP SIGNATURE-
Mehmet,
An idle handler would be a good fit here. I assumed that you are
creating and filling textviews during the startup of your program and
possibly before you enter the main_loop or gtk_main. Or possibly in a
routine that does everything at once. Here is the potential problem:
your create and populate actions require some additional gtk messages to
be processed, which are waiting to get serviced by the gtk_main() loop.
So thing s will not appear to settle down until after the gtk_main has
been allowed to run. Using an idle handler puts your call to a
Position/Size routine at the back of the waiting queue of needed
messages, so by the time it's processed the other messages have done
their job and all the textviews/scrollbars/gtkvboxes, and scrolled
windows have settled down. -- wait, this assumes you issued a
gtk_widget_show{_all} on the main window containing all this stuff! Its
the gtk_widget_show that starts the cascade of messages which includes
the size and realize messages.
g_idle_add() or g_timeout_add(250,...) show do the trick.
James,
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
James Scott, Jr.
Registered Linux User #270764
FC6 on Dual AMD-MP 2400+
Author: {gfhcm, gkrellfah2,gapcmon,giw}.sourceforge.net
http://mysite.verizon.net/skoona/index.html
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
