Newbie in over head -- Marshallers
Hello,
I need to add a signal to the GtkWidget so that the callback functions will
take two pointers instead of one. i.e.
foo(GtkWidget *widget, gpointer clientdata, gpointer
datastruct){}
I realize that I need to use gtk_object_class_user_signal_new(), however, I
don't understand how to define a new marshaller for this. The FAQ simply
says "If you want your new signal to have more than the classical gpointer
parameter, you'll have to play with GTK+ marshallers." I'm guessing that I
need to use GtkCallbackMarshal() to define a function, but I can't seem to
find any documentation on what the marshaller functions actually need to do.
Note: I don't have access to the gtk src code on the machine I'm using yet,
so I can't look there for an example
Can anyone help me?
Thanks,
Brooke
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Signals - newbie
Hello, I'm afraid that I'm a bit confused regarding gtk_object_class_user_signal_new. Has it been deprecated? I noticed that it is documented in 1.2's API (with no mention of future deprecation), but that there is little mention of it in the 2.0 API reference short of a brief paragraph in the signals section. Also, running cat * | grep gtk_object_class_user_signal_new in the gtk directory is returning nothing. I would really rather avoid rewriting all of the widgets to support the signals that I need them to, not only because of time issues, but also because it seems like a very very bad idea. Is there some other way to that I'm (quite likely) missing? Thanks for any help Brooke ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
pango and xfonts
Hi, I'm currently working on a library of wrapper functions that converts code written in OLIT into gtk. I've run into a problem with fonts that hopefully someone here can help with. I have a case where I'll be passed an XFontStruct* and need to be able to apply that to any number of widget types. It would be easiest for me if I could create a PangoFontDescription from the XFontStuct*, but I can't seem to find any series of methods in Pango that would achieve this (short of manually pulling whatever relevant properties I can from the XFontStruct*, setting them in a new description and hoping for the best). Are there any bettter ways? I'm still relatively new to gtk (and all GUI progamming for that matter), so if I've missed something blatant, feel free to point and laugh :) Thanks for any ideas Brooke ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Slow Rendering?
Hi to all, I have an application that works perfectly, but rendering is extremely slow (bringing up the application takes over 8 seconds, a popup window takes a little over 4). While I realize that it isn't necessarily a guarantee that this is the problem, stepping through the application with gdb shows that the bulk of this (4-5 seconds) occurs when I try to show the top widgets. However, if I take out all changes to the background colors and fonts, the time drops to 3 seconds to bring up the applicaton and < 1 second for popup windows. I don't know if changing these via the rc file is faster, but that option isn't available to me anyway since I won't know what colors or fonts to use until run-time. Any ideas on what's going on? I can supply some code if necessary. Thanks for any help! Brooke PS - I'm working on a sparc ultra 5 that runs Solaris 8, BUT the application is running from a window where I've ssh'd to a linux terminal that runs redhat 9 with a 2.4.20-18.9 kernel ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
RE: Slow Rendering?
Hi again, > -Original Message- > From: Sven Neumann [mailto:[EMAIL PROTECTED] > Sent: Thursday, November 20, 2003 6:04 AM > To: Dennie, Brooke > Cc: '[EMAIL PROTECTED]' > Subject: Re: Slow Rendering? > > > Hi, > > "Dennie, Brooke" <[EMAIL PROTECTED]> writes: > > > I have an application that works perfectly, but rendering is > > extremely slow (bringing up the application takes over 8 > > seconds, a popup window takes a little over 4). While I > > realize that it isn't necessarily a guarantee that this is the > > problem, stepping through the application with gdb shows that > > the bulk of this (4-5 seconds) occurs when I try to show the > > top widgets. However, if I take out all changes to the > > background colors and fonts, the time drops to 3 seconds to > > bring up the applicaton and < 1 second for popup windows. I > > don't know if changing these via the rc file is faster, but > > that option isn't available to me anyway since I won't know > > what colors or fonts to use until run-time. Any ideas on > > what's going on? I can supply some code if necessary. > > > > Thanks for any help! > > > > Brooke > > > > PS - I'm working on a sparc ultra 5 that runs Solaris 8, BUT > > the application is running from a window where I've ssh'd to a > > linux terminal that runs redhat 9 with a 2.4.20-18.9 kernel > > It would help if you mentioned the version of GTK+ you are using and > perhaps which Pango backend is in use. > > Oops! Of course! Sorry. GTK+ is version 2.2.1. I'm not entirely sure what you mean by backend (sorry, I'm still pretty new to this), but I think it's pangoxft. Running pkg-config --list-all didn't show anything of interest, but pkg-config --modversion xft found a version 2 so I'm guessing that's what it's using? Brooke > Sven > ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
RE: Slow Rendering?
Hi, > -Original Message- > From: Sven Neumann [mailto:[EMAIL PROTECTED] > Sent: Thursday, November 20, 2003 10:30 AM > To: Dennie, Brooke > Cc: '[EMAIL PROTECTED]' > Subject: Re: Slow Rendering? > > > Hi, > > Sven Neumann <[EMAIL PROTECTED]> writes: > > > Unless you set GDK_ENABLE_XFT to 0 explicitely, you are using the > > PangoXft backend then. Font configuration is done using fontconfig. > > Please check the fontconfig user documentation at > > > > http://pdx.freedesktop.org/~fontconfig/fontconfig-user.html > > Sorry, I confused your answer with another thread where a user was > asking for information about font configuration. > Oh good, I was beginning to wonder if I'd suddenly lost my mind... > The answer to your question about speed issues on remote displays is > that you could try to use X11 core fonts by setting the environment > variable GDK_ENABLE_XFT to 0. This would disable antialiased fonts > which are likely causing your speed issues. Does your X-Server > implement the RENDER extension? > Hrmm. Setting the variable didn't seem to make much of a difference. The application now takes ~12s, but popups sped up to ~3s RENDER isn't implemented as far as I know since I get to see the "extension RENDER missing" error every time I run my program :D Any other ideas? Thanks again! Brooke > > Sven > ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
RE: Slow Rendering?
Hi > -Original Message- > From: Tony Denault [mailto:[EMAIL PROTECTED] > Sent: Thursday, November 20, 2003 10:20 PM > To: Dennie, Brooke > Cc: 'Sven Neumann'; '[EMAIL PROTECTED]' > Subject: RE: Slow Rendering? > My initial test using pango caused the timer function to > take >270 ms (over 1000x slower). After picking up the > maillist thread, I > decide to experiment using different font as I though PANGO might > be rendering everything and sending images to the X11 client windows. > Here is a table of different fonts using Pango; > > Font Pango PangoGDK_ENABLE_XFT=0 size > -- > San 8 270 250 7x15 > Serif 10 360 362 8x19 > miscFixed 9 6.8 6.7 6x14 > miscFixed 10 6.9 6.8 9x15 > console8x166.9 6.8 8x16 > Courier 10 372 372 9x18 > Fixed 6.8 6.9 9x15 > LucidaTyperwriter 9361 361 8x17 > > Also note the Pango time varies widely, for example the > 360 ms can jump about upto 700ms. I wrote the 'best' time > for the table. > That's interesting. I hadn't thought of that actually. Some of my problem could be in the type of font. I'm never given an xfd, but rather I'm handed an XFontStruct. What I've been doing is just creating an empty font description, then calling XGetFontProperty on the XFontStruct and pulling all of the values I need for the font description out of it and filling those in. > GDK_ENABLE_XFT=0 help a little (sometimes). > For me picking a better font will help. 6.8 ms is OK, but I would > like better -> This is still 25x slower that gdk_font_load(). > Not really an option due to the nature of the project... > My GTK app runs on a linux box running Fedora Core release > 0.94 (Severn). > I am displaying on a XP computer running X-Win32 X11 server. > > Running the app directly on the linux console improves things somewhat > (ie: 6.8ms -> 4.8ms). > Also not an option... > Tony > > /- > --\ > | Tony Denault | Email: > [EMAIL PROTECTED] | > | Institute for Astronomy | Phone: > (808) 932-2378 | > | 640 North Aohoku Place |Fax: > (808) 933-0737 | > | Hilo, Hawaii 96720 | > | > \- > --/ ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
RE: Slow Rendering?
Hi, > -Original Message- > From: Sven Neumann [mailto:[EMAIL PROTECTED] > Sent: Friday, November 21, 2003 6:14 AM > To: Dennie, Brooke > Cc: '[EMAIL PROTECTED]' > Subject: Re: Slow Rendering? > > > Hi, > > "Dennie, Brooke" <[EMAIL PROTECTED]> writes: > > > Hrmm. Setting the variable didn't seem to make much of a > > difference. The application now takes ~12s, but popups sped > > up to ~3s > > > > RENDER isn't implemented as far as I know since I get to see > > the "extension RENDER missing" error every time I run my > > program :D > > > > Any other ideas? Thanks again! > > Two more things that can cause long startup times are (a) not using > fc-cache and Can't say that I'm familiar with that. Looks like I need to do some research... > (b) having extended input devices configured but not > connected. > > Thanks again for all your help! Hopefully one of these will work out Brooke > Sven > ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
RE: Slow Rendering?
Hi, > -Original Message- > From: Brett Granger [mailto:[EMAIL PROTECTED] > Sent: Friday, November 21, 2003 9:47 AM > To: Dennie, Brooke > Cc: 'Sven Neumann'; '[EMAIL PROTECTED]' > Subject: Re: Slow Rendering? > > > > A quick grep of the source code (gdk/x11/gdkpango-x11.c) > shows that the > environment variable you really want is GDK_USE_XFT, not > GDK_ENABLE_XFT. > I don't know whether that will make any difference to what you're > seeing, but it can't hurt to try. > > --Brett > > Well, that definitely made a difference. Unfortunately, it wasn't for the better :) Thanks for the correction, though. Brooke ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Strange font display
Hi all, I'm not sure if this is a gtk, gnome, or messed up system in general problem, but any pointers at all would be greatly appreciated! I'm working with getting the chars of an iso8859-1 font to display in any of the text widgets. I've gotten all of them working by using g_convert, EXCEPT for one. For some reason the 0xa0 character (an alpha in this font) appears as a blank space. Is there something special about this particular value? I had initially thought that it was related to the "hole" that you generally see in fonts from 0x7f-0xa0, but all of the others in this range are displaying without a problem. Any ideas? Thanks! Brooke ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Why don't all chars display?
Hi everyone, I've been working on getting an iso8859-1 font to display all of its chars in an entry widget. For some reason I can't get 0xa0 to display. Here's the code that I'm using: - char buff[2], *buff2; GtkWidget *entry; PangoFontDescription *pfd; . buff[0] = (char)0xa0; buff[1] = '\0'; gtk_widget_modify_font(entry, pfd); buff2 = g_convert(buff, -1, "UTF-8", "ISO8859-1", NULL, NULL, NULL); gtk_entry_set_text(GTK_ENTRY(entry), buff2); . - It shows up as just a blank space (it should be a greek alpha). When I run this with any other value besides 0xa0, it works just as I had expected. What am I doing wrong? Thanks! Brooke ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
RE: Why don't all chars display?
Hmm. That's interesting. This font claims to be ISO8859-1 and 0xa0 is definitely not a nbsp. I ran xfd on it and it displays as an alpha there... > -Original Message- > From: Mark Leisher [mailto:[EMAIL PROTECTED] > Sent: Monday, February 09, 2004 2:08 PM > To: '[EMAIL PROTECTED]' > Subject: Re: Why don't all chars display? > > > Dennie, Brooke wrote: > > I've been working on getting an iso8859-1 font to display all of > > its chars in an entry widget. For some reason I can't get 0xa0 to > > display. Here's the code that I'm using: > > In the ISO8859-1 character set 0xA0 is a non-breaking space, > not a Greek Alpha. > -- > -- > - > Mark Leisher > Computing Research LabThe fury with which > untenable beliefs > New Mexico State University are defended is > inversely proportional > Box 30001, Dept. 3CRL to their defensibility. > Las Cruces, NM 88003 -- Richard Dawkins > ___ > gtk-list mailing list > [EMAIL PROTECTED] > http://mail.gnome.org/mailman/listinfo/gtk-list > ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
RE: Why don't all chars display?
I don't believe it is. It's called Key Courrier, but I wasn't able to find a copy of it in any public area. I've previously only used it in OpenLook (under the same OS I'm currently using) and never had any issues with it there, so your assumption about pango could very well be right. I'll have to take a look at the pango src and see if I can find something there. Thanks! Brooke > -Original Message- > From: Mark Leisher [mailto:[EMAIL PROTECTED] > Sent: Monday, February 09, 2004 4:08 PM > To: '[EMAIL PROTECTED]' > Subject: Re: Why don't all chars display? > > > Dennie, Brooke wrote: > > Hmm. That's interesting. This font claims to be ISO8859-1 and 0xa0 > > is definitely not a nbsp. I ran xfd on it and it displays as an > > alpha there... > > > > This is just a guess because I haven't seen the code, but > Pango may be > handling known spaces in a special way. > > Is this a freely available font that we might look at? > -- > -- > - > Mark Leisher > Computing Research LabThe fury with which > untenable beliefs > New Mexico State University are defended is > inversely proportional > Box 30001, Dept. 3CRL to their defensibility. > Las Cruces, NM 88003 -- Richard Dawkins > ___ > gtk-list mailing list > [EMAIL PROTECTED] > http://mail.gnome.org/mailman/listinfo/gtk-list > ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Colormap issues
Hi everyone,
I'm a little confused as to how the following code can produce the
output:
succeeded... 15736992 256
gdk_color_parse("green", &color);
if(gdk_colormap_alloc_color(colormap, &color, FALSE, TRUE))
printf("succeeded... %d %d\n", color.pixel, colormap->size);
The pixel value is obviously causing a few problems later on when
I try to query the color. I had been under the impression that
the printf statement wouldn't be executed unless the pixel value
had been filled in. Is this not the case?
Thanks for any info!
Brooke
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