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gtk_window_move
by Craig Harding-2
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I'm trying to move a gtk window multiple times within a period of time
but it seems that it doesn't update the window position for each window move until gtk_main() is called and then all window moves are done at once it seems. I want to move a window with a usleep call inbetween window moves. Can any provide me with some guidance? Is there a flush or update call I'm missing? Below is my code.. #include <gdk/gdk.h> #include <gtk/gtk.h> int main (int argc, char **argv) { GtkWidget *window; int w=200, h=200; int x, y; x=100; y=50; gtk_init(&argc, &argv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_widget_show_all(window); g_signal_connect (G_OBJECT (window), "delete-event", gtk_main_quit, NULL); usleep(500000); printf("sleep fnished\n"); gtk_widget_show(window); gtk_window_resize (GTK_WINDOW (window), w, h); usleep(500000); printf("sleep fnished\n"); gtk_window_move (GTK_WINDOW (window), x, y); usleep(500000); gtk_widget_show(window); gtk_window_resize (GTK_WINDOW (window), w+300, h); printf("gtk_main()\n"); gtk_main(); return 0; _______________________________________________ gtk-list mailing list gtk-list@... http://mail.gnome.org/mailman/listinfo/gtk-list |
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Re: gtk_window_move
by milosz derezynski
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What is probably better is to use gdk_flush() after the execution of gtk_window_move() or _resize(), and after that make sure that you run the main event loop with gtk_main_iteration(); you can use a GTimer to determine the time elapsed. Obviously, and also since this involves the windowing system whose timing can not really be predicted, this is nothing for time critical applications and can't be very precise, but tweaks of the mentioned mechanism are surely possible.
An example would look like this (off the top of my head, might contain some errors): GTimer *timer = g_timer_new(); gtk_window_move(GTK_WINDOW(window), x, y); g_timer_reset(timer); while(g_timer_elapsed(timer) > 0.5) while(gtk_events_pending()) gtk_main_iteration(); g_timer_destroy(timer); Hopefully someone has a more elegant solution :) -- Milosz 2008/6/18 Craig Harding <craigwharding@...>: I'm trying to move a gtk window multiple times within a period of time _______________________________________________ gtk-list mailing list gtk-list@... http://mail.gnome.org/mailman/listinfo/gtk-list |
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Re: gtk_window_move
by milosz derezynski
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Ooops, obviously i meant
while (g_timer_elapsed(timer) < 0.5) not "> 0.5" 2008/6/18 Milosz Derezynski <internalerror@...>: What is probably better is to use gdk_flush() after the execution of gtk_window_move() or _resize(), and after that make sure that you run the main event loop with gtk_main_iteration(); you can use a GTimer to determine the time elapsed. Obviously, and also since this involves the windowing system whose timing can not really be predicted, this is nothing for time critical applications and can't be very precise, but tweaks of the mentioned mechanism are surely possible. _______________________________________________ gtk-list mailing list gtk-list@... http://mail.gnome.org/mailman/listinfo/gtk-list |
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RE: gtk_window_move
by Vallone, Anthony
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You are misunderstanding one of the basic principles of event driven
programming. None of the events (window show, window move, user button click, etc...) are processed until gtk_main() starts the event loop. Each event is handled in one iteration of the event loop. Your code is queuing some shows and moves with sleeps in between, then it calls gtk_main() to start processing events. So, it is quickly processing your queued events one after the other. There are a few ways to get the behavior you desire. Here is one pseudo-code-ish solution: bool timeoutCb() { gtk_window_move(); if(done annoying the user) return false; return true; } main() { ... gtk_window_show(); g_timeout_add(5000, &timeoutCb); gtk_main(); } -Anthony Vallone -----Original Message----- From: gtk-list-bounces@... [mailto:gtk-list-bounces@...] On Behalf Of Craig Harding Sent: Wednesday, June 18, 2008 7:07 AM To: gtk-list@... Subject: gtk_window_move I'm trying to move a gtk window multiple times within a period of time but it seems that it doesn't update the window position for each window move until gtk_main() is called and then all window moves are done at once it seems. I want to move a window with a usleep call inbetween window moves. Can any provide me with some guidance? Is there a flush or update call I'm missing? Below is my code.. #include <gdk/gdk.h> #include <gtk/gtk.h> int main (int argc, char **argv) { GtkWidget *window; int w=200, h=200; int x, y; x=100; y=50; gtk_init(&argc, &argv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_widget_show_all(window); g_signal_connect (G_OBJECT (window), "delete-event", gtk_main_quit, NULL); usleep(500000); printf("sleep fnished\n"); gtk_widget_show(window); gtk_window_resize (GTK_WINDOW (window), w, h); usleep(500000); printf("sleep fnished\n"); gtk_window_move (GTK_WINDOW (window), x, y); usleep(500000); gtk_widget_show(window); gtk_window_resize (GTK_WINDOW (window), w+300, h); printf("gtk_main()\n"); gtk_main(); return 0; _______________________________________________ gtk-list mailing list gtk-list@... http://mail.gnome.org/mailman/listinfo/gtk-list _______________________________________________ gtk-list mailing list gtk-list@... http://mail.gnome.org/mailman/listinfo/gtk-list |
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