ReFreshing a Window
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ReFreshing a Window
by Dimitri Holz
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I use a resize() - methode to change a size of my window, but I do it in
a do-while-trails to see the change-effect: void MyWindow::change_size() { int x=100, y=100; do { MyWindow::resize(x, y); ....................................................... x++; y++; }while(x<800||y<800); } but the problem is that you see only the first and the last size and I can`t find a GtKmm-methode for refresh a window like ::refresh() ; or ::reload() or so. How can I solve this problem? _______________________________________________ gtkmm-list mailing list gtkmm-list@... http://mail.gnome.org/mailman/listinfo/gtkmm-list |
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Re: ReFreshing a Window
by Joaquim Duran-3
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En/na Dimitri Holz ha escrit:
> I use a resize() - methode to change a size of my window, but I do it in > a do-while-trails to see the change-effect: > > void MyWindow::change_size() > { > int x=100, y=100; > do > { > MyWindow::resize(x, y); > ....................................................... > x++; > y++; > }while(x<800||y<800); > } > > but the problem is that you see only the first and the last size and I > can`t find a GtKmm-methode for refresh a window like ::refresh() ; > or ::reload() or so. How can I solve this problem? > _______________________________________________ > gtkmm-list mailing list > gtkmm-list@... > http://mail.gnome.org/mailman/listinfo/gtkmm-list > > When a widget (including your window) is resized, the widget generates an event to be redrawn, so the call to 'queue_redraw()' to force the redraw of the window is not needed. The problem is in your code: In a simple loop you are performing many resize operations. Gtk and GTKmm is working based on events, so every time you call to resize, an event is generated and queued, and all generated events are processed once the loop is finished (the control returns to main loop and new events are processed). You should change the implementation of your function and use a timer, in which at every timer callback an update should be done. For more information: http://www.gtkmm.org/docs/gtkmm-2.4/docs/tutorial/html/chapter-chapter-timeouts.html#sec-timeouts Joaquim Duran Thanks and Best Regards, _______________________________________________ gtkmm-list mailing list gtkmm-list@... http://mail.gnome.org/mailman/listinfo/gtkmm-list |
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Re: ReFreshing a Window
by Dimitri Holz
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Dimitri Holz schrieb:
> I use a resize() - methode to change a size of my window, but I do it in > a do-while-trails to see the change-effect: > > void MyWindow::change_size() > { > int x=100, y=100; > do > { > MyWindow::resize(x, y); > ....................................................... > x++; > y++; > }while(x<800||y<800); > } > > but the problem is that you see only the first and the last size and I > can`t find a GtKmm-methode for refresh a window like ::refresh() ; > or ::reload() or so. How can I solve this problem? > _______________________________________________ > gtkmm-list mailing list > gtkmm-list@... > http://mail.gnome.org/mailman/listinfo/gtkmm-list > > ANOTHER PROBLEM: the same code without loops: there are 2 buttons in the window and after resize they stay at the same place with the same size, only after the next event they refreshes theyselfes. How can you update them? _______________________________________________ gtkmm-list mailing list gtkmm-list@... http://mail.gnome.org/mailman/listinfo/gtkmm-list |
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Re: ReFreshing a Window
by Paul Davis
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On Tue, 2008-05-13 at 18:25 +0200, Dimitri Holz wrote: > Dimitri Holz schrieb: > > I use a resize() - methode to change a size of my window, but I do it in > > a do-while-trails to see the change-effect: > > > > void MyWindow::change_size() > > { > > int x=100, y=100; > > do > > { > > MyWindow::resize(x, y); > > ....................................................... > > x++; > > y++; > > }while(x<800||y<800); > > } > > > > but the problem is that you see only the first and the last size and I > > can`t find a GtKmm-methode for refresh a window like ::refresh() ; > > or ::reload() or so. How can I solve this problem? > > _______________________________________________ > > gtkmm-list mailing list > > gtkmm-list@... > > http://mail.gnome.org/mailman/listinfo/gtkmm-list > > > > ANOTHER PROBLEM: the same code without loops: there are 2 buttons in the window and after resize they stay at the same place with the same size, only after the next event they refreshes theyselfes. How can you update them? its nothing to do with loops. all GUI applications have this structure: main () { ... do some setup .... while (no_reason_to_exit) { GUI_Toolkit_waits_for_events (); GUI_Toolkit_calls_your_event_handlers (); GUI_Toolkit_updates_windows(); } ... do some shutdown stuff ... } as you can hopefully see, nothing that you do inside any code you write for an event handler (whether its a button press, or an idle handler or whatever else) will be visible until the *next* iteration of the GUI toolkit's "update windows" step. _______________________________________________ gtkmm-list mailing list gtkmm-list@... http://mail.gnome.org/mailman/listinfo/gtkmm-list |
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Re: ReFreshing a Window
by Christopher Lang-4
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Hi, maybe this helps: // computation going on while( Gtk::Main::events_pending() ) Gtk::Main::iteration(); // computation continued see: http://www.gtkmm.org/docs/gtkmm-2.4/docs/reference/html/classGtk_1_1Main.html#2a2a6cddef82f8c52026790f3f7887e0 Gtk::Main Class Reference cheers Chris http://www.acurana.de/ Am Dienstag 13 Mai 2008 16:44:11 schrieb Dimitri Holz: > I use a resize() - methode to change a size of my window, but I do it in > a do-while-trails to see the change-effect: > > void MyWindow::change_size() > { > int x=100, y=100; > do > { > MyWindow::resize(x, y); > ....................................................... > x++; > y++; > }while(x<800||y<800); > } > > but the problem is that you see only the first and the last size and I > can`t find a GtKmm-methode for refresh a window like ::refresh() ; > or ::reload() or so. How can I solve this problem? > _______________________________________________ > gtkmm-list mailing list > gtkmm-list@... > http://mail.gnome.org/mailman/listinfo/gtkmm-list _______________________________________________ gtkmm-list mailing list gtkmm-list@... http://mail.gnome.org/mailman/listinfo/gtkmm-list |
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