Re: How to make a button look like a treeview column title? [Was: How to use the treeview column title style for a button?]
Kristian Rietveld wrote:
On Mon, Oct 08, 2007 at 03:53:29PM +0200, Bastiaan Veelo wrote:
Something like this seems to work for me:
button = gtk_button_new_with_label (...);
style = gtk_rc_get_style_by_paths (gtk_widget_get_settings (button),
*.GtkTreeView.GtkButton,
NULL,
G_OBJECT_TYPE (button));
gtk_widget_set_style (button, style);
snip
I guess I need to trick the theme engine into thinking that it is
drawing a GtkTreeView button. Is there a way to do that? If the method
would be engine-dependent, I need it to work on MS Windows.
That is exactly what the code above tries to achieve.
snip
The reason why this is not going to work (for the windows theme at
least, GTK+ 2.10) is a hard-coded check on the type of widget-parent in
draw_box() on line 1929 of msw_style.c:
if (GTK_IS_TREE_VIEW (widget-parent)
|| GTK_IS_CLIST (widget-parent))
{
if (xp_theme_draw
(window, XP_THEME_ELEMENT_LIST_HEADER, style, x, y,
width, height, state_type, area))
return;
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Re: How to make a button look like a treeview column title? [Was: How to use the treeview column title style for a button?]
Bastiaan Veelo wrote:
The reason why this is not going to work (for the windows theme at
least, GTK+ 2.10) is a hard-coded check on the type of widget-parent in
draw_box() on line 1929 of msw_style.c:
So I faked the parent widget through some evil hacking in the expose
function below. It works, for now.
#include gtk/gtk.h
G_BEGIN_DECLS
#define GTK_TYPE_HEADER (gtk_header_get_type ())
#define GTK_HEADER(obj) (G_TYPE_CHECK_INSTANCE_CAST
((obj), GTK_TYPE_HEADER, GtkMenuSheet))
#define GTK_HEADER_CLASS(klass) G_TYPE_CHECK_CLASS_CAST ((klass,
GTK_TYPE_HEADER, GtkMenuSheetClass))
#define GTK_IS_HEADER(obj) (G_TYPE_CHECK_INSTANCE_TYPE
((obj), GTK_TYPE_HEADER))
#define GTK_IS_HEADER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE
((klass), GTK_TYPE_HEADER))
#define GTK_HEADER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS
((obj), GTK_TYPE_HEADER, GtkMenuSheetClass))
typedef struct _GtkHeader GtkHeader;
typedef struct _GtkHeaderClass GtkHeaderClass;
struct _GtkHeader
{
GtkButton parent;
};
struct _GtkHeaderClass
{
GtkButtonClass parent_class;
};
G_END_DECLS
GTypegtk_header_get_type (void) G_GNUC_CONST;
GtkWidget *gtk_header_sheet_new();
static gboolean gtk_header_expose (GtkWidget
*widget,
GdkEventExpose
*event);
static void
gtk_header_class_init (GtkHeaderClass *class)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
widget_class-expose_event = gtk_header_expose;
}
static void
gtk_header_init (GtkHeader *header)
{
}
/* GType Methods */
G_DEFINE_TYPE (GtkHeader, gtk_header, GTK_TYPE_BUTTON)
GType
gtk_header_type ()
{
static GType header_type = 0;
if (!header_type)
{
static const GTypeInfo header_info =
{
sizeof (GtkHeaderClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_header_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkHeader),
0,/* n_preallocs */
(GInstanceInitFunc) gtk_header_init,
};
header_type = g_type_register_static (GTK_TYPE_BUTTON,
GtkHeader,
header_info,
0);
}
return header_type;
}
static gboolean
gtk_header_expose (GtkWidget *widget,
GdkEventExpose *event)
{
static GtkWidget *treeview = NULL;
if (!treeview) treeview = gtk_tree_view_new();
/* Trick draw_box() in msw_style.c on line 1929 into thinking that our
parent
is a GtkTreeView. This works on MS Windows and GTK+ 2.10.6, but it may
fail miserably when used with other themes or other versions of
GTK+. */
GtkWidget *real_parent = widget-parent;
widget-parent = treeview;
(* GTK_WIDGET_CLASS (gtk_header_parent_class)-expose_event) (widget,
event);
widget-parent = real_parent;
return FALSE;
}
GtkWidget*
gtk_header_new (void)
{
return g_object_new (GTK_TYPE_HEADER, NULL);
}
int main( int argc,
char *argv[] )
{
gtk_init (argc, argv);
GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_signal_connect (window, destroy,
G_CALLBACK (gtk_widget_destroyed), window);
GtkWidget *header = gtk_header_new();
gtk_button_set_label (GTK_BUTTON (header), Header);
/* Not sure whether the folowwing is necessary. */
GtkStyle *style = gtk_rc_get_style_by_paths (gtk_widget_get_settings
(header),
NULL,
*.GtkTreeView.GtkButton,
GTK_TYPE_BUTTON);
gtk_widget_set_style (header, style);
gtk_container_add (GTK_CONTAINER (window), header);
gtk_widget_show_all(window);
gtk_main ();
return 0;
}
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Re: How to redraw the blanked section of a widget after a expose-event?
krist misra wrote:
Hi experts,
I am using GTK+ and gstreamer to capture and show the video frames, I
created a drawable widget using gtk_drawing_area_new() and using xvimage
element of gstreamer to render the video, I also connected them by a
gstreamer function gst_x_overlay_set_xwindow_id(), so the video frames
rendered by xvimage can show in the widget, now it works well.
But I encounter a problem that if part of the drawable widget being covered
by a menu or something, when the menu disappears, the covered section keeps
blank, even other part of the widget still show the video.
I try to write a function expose_cb() and connect it with the signal
expose-event, in that function I call gst_x_overlay_set_xwindow_id()
again and also gtk_widget_show_all(), but it seems still not work. cos it's
showing a video so I cannot save some image and redraw it again
after it exposes.
Anyone can help me? how should I do in the expose_cb or something else?
Thanks a lot
below is part of the source code
-
static gboolean expose_cb(GtkWidget * widget, GdkEventExpose * event,
gpointer data)
{
gst_x_overlay_set_xwindow_id(GST_X_OVERLAY(data),
GDK_WINDOW_XWINDOW(widget-window));
gtk_widget_show_all(widget);
}
int main()
{
...
gstreamer_main_video_image = gtk_drawing_area_new();
...
screen_sink = gst_bin_get_by_name (GST_BIN (appdata.bin), screensink);
...
gst_x_overlay_set_xwindow_id(GST_X_OVERLAY(screen_sink),
GDK_WINDOW_XWINDOW(gstreamer_main_video_image-window));
g_signal_connect(gstreamer_main_video_image, expose-event,
G_CALLBACK(expose_cb),
screen_sink);
gtk_widget_show_all(gstreamer_window);
...
}
Krist.
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I dont know if this is a correct solution, but i have drawn images to
the background of gtk_drawing_area, and if you do that, then GTK will
keep the background pixmap around for redrawing purposes.
Use something like this:
gdk_window_set_back_pixmap(widget-window, pixmap, FALSE);
gtk_widget_queue_draw_area(widget, 0, 0,
widget-allocation.width,
widget-allocation.height);
And create a pixmap where you draw the images, and queue redraw when the
you redraw the pixmap.
--
Arto Karppinen
--
[EMAIL PROTECTED]
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Re: timeout function not called
Thanks James, Sorry, I didn't mean to seem like I was ignoring you, but the code I am working on is part of a bigger application and I wasn't sure how to extract the bit I was working on into a usable piece. I was also looking into using GIOChannels to see if I could make that work. Thanks for the example. I'll work through it and see if I can get that working in my project. Sincerely, Vicki Quoting James Scott Jr [EMAIL PROTECTED]: Vicki, Here is a more complete example of how to resolve your issue. Compile with this command '# gcc -Wall -g -O2 `pkg-config --libs --cflags gtk+-2.0 glib-2.0 gthread-2.0` gprogress.c' -- Invent your own San Diego at sandiego.com! ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
GtkPageSetupUnixDialog and GtkPrintUnixDialog
GtkPageSetupUnixDialog and GtkPrintUnixDialog don't exist on my system, even though it seems that they should. Fedora 7 gtk2-2.10.14-3.fc7 gtk2-devel-2.10.14-3.fc7 Documentation (http://library.gnome.org/devel/gtk/unstable/GtkPageSetupUnixDialog.html) shows it was added in gtk+ 2.10. However, the header files dont exist. They do exist in the source, though: /home/riffraff/src/gtk+-2.10.14/gtk [EMAIL PROTECTED] gtk]$ ls gtkprintunixdialog.* gtkprintunixdialog.c gtkprintunixdialog.h gtkprintunixdialog.lo [EMAIL PROTECTED] gtk]$ ls gtkpagesetupunixdialog.* gtkpagesetupunixdialog.c gtkpagesetupunixdialog.h gtkpagesetupunixdialog.lo [EMAIL PROTECTED] gtk]$ But: [EMAIL PROTECTED] gtk]$ ls -al /usr/include/gtk-2.0/gtk/gtkpagesetup* -rw-r--r-- 1 root root 3765 2007-07-24 22:38 /usr/include/gtk-2.0/gtk/gtkpagesetup.h [EMAIL PROTECTED] gtk]$ ls -al /usr/include/gtk-2.0/gtk/gtkprintun* ls: cannot access /usr/include/gtk-2.0/gtk/gtkprintun*: No such file or directory [EMAIL PROTECTED] gtk]$ So, is something wrong with my system? With the packages provided by Fedora? Or is the documentation incorrect? Thanks, Lance Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
glib delays using a monotonic timer
Is it possible to use a monotonic timer with glib delays -- for instance: g_async_queue_timed_pop g_timeout_add If I change the system time (Linux date command) in between when I call the above functions, and the timer is supposed to expire, the timer gets messed up by the system time change. What is the best solution to this problem? man clock_nanosleep gives lots of useful information about the differences between the REALTIME, and MONOTONIC system timers. Thanks, Cliff -- === Cliff Brake http://bec-systems.com ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GtkPageSetupUnixDialog and GtkPrintUnixDialog
On Tue, Oct 09, 2007 at 10:26:30AM -0700, Lance Dillon wrote: GtkPageSetupUnixDialog and GtkPrintUnixDialog don't exist on my system, even though it seems that they should. They do. Fedora 7 gtk2-2.10.14-3.fc7 gtk2-devel-2.10.14-3.fc7 rpm -q gtk2-devel | grep unix should clarify things a lot... ... So, is something wrong with my system? With the packages provided by Fedora? Or is the documentation incorrect? The Gtk+ Unix printing stuff is in gtk+-unix-print-2.0 pkg-config package. If you really need to use the non-portable Unix part of the API, you have to add flags from this package. Yeti -- http://gwyddion.net/ ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GtkPageSetupUnixDialog and GtkPrintUnixDialog
- Original Message From: David Nečas (Yeti) [EMAIL PROTECTED] To: gtk-app-devel-list@gnome.org Sent: Tuesday, October 9, 2007 1:36:55 PM Subject: Re: GtkPageSetupUnixDialog and GtkPrintUnixDialog On Tue, Oct 09, 2007 at 10:26:30AM -0700, Lance Dillon wrote: GtkPageSetupUnixDialog and GtkPrintUnixDialog don't exist on my system, even though it seems that they should. They do. Fedora 7 gtk2-2.10.14-3.fc7 gtk2-devel-2.10.14-3.fc7 rpm -q gtk2-devel | grep unix should clarify things a lot... ... So, is something wrong with my system? With the packages provided by Fedora? Or is the documentation incorrect? The Gtk+ Unix printing stuff is in gtk+-unix-print-2.0 pkg-config package. If you really need to use the non-portable Unix part of the API, you have to add flags from this package. Yeti - Okay, thanks for the help. It doesn't appear that Fedora 7 doesn't provide these packages, at least not in the default repositories. Take the Internet to Go: Yahoo!Go puts the Internet in your pocket: mail, news, photos more. http://mobile.yahoo.com/go?refer=1GNXIC ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GtkPageSetupUnixDialog and GtkPrintUnixDialog
WTF? If the Fedora 7 packages gtk2-2.10.14-3.fc7 gtk2-devel-2.10.14-3.fc7 *you* asked about are not provided by your Fedora 7, then at least one of us is confused. No, I meant the ones you referenced before: rpm -q gtk2-devel | grep unix [EMAIL PROTECTED] ~]# yum list|grep gtk2-devel|grep unix [EMAIL PROTECTED] ~]# Tonight's top picks. What will you watch tonight? Preview the hottest shows on Yahoo! TV. http://tv.yahoo.com/ ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: timeout function not called
Vicki, I though you might have been chopping something up, thats the reason for the quick samepl. I'm going to assume it worked for you and you understand why it works. As for GIOChannels, they are very handy and could be used in an elaborate scheme to get this simple thing done. James, (This mailing list has an archive you can search for q/a on GIOChannels and ProgressBars...) - Original Message From: [EMAIL PROTECTED] [EMAIL PROTECTED] To: James Scott Jr [EMAIL PROTECTED] Cc: gtk-app-devel-list@gnome.org Sent: Tuesday, October 9, 2007 11:45:52 AM Subject: Re: timeout function not called Thanks James, Sorry, I didn't mean to seem like I was ignoring you, but the code I am working on is part of a bigger application and I wasn't sure how to extract the bit I was working on into a usable piece. I was also looking into using GIOChannels to see if I could make that work. Thanks for the example. I'll work through it and see if I can get that working in my project. Sincerely, Vicki Quoting James Scott Jr [EMAIL PROTECTED]: Vicki, Here is a more complete example of how to resolve your issue. Compile with this command '# gcc -Wall -g -O2 `pkg-config --libs --cflags gtk+-2.0 glib-2.0 gthread-2.0` gprogress.c' -- Invent your own San Diego at sandiego.com! ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
