forked from AuroraMiddleware/gtk
6dea3cae13
2002-02-19 Sven Neumann <sven@gimp.org> * examples/*/*.c: finish conversion to g_signal_* functions by using G_OBJECT and G_CALLBACK and other assorted changes.
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
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#include <gtk/gtk.h>
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/* I'm going to be lazy and use some global variables to
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* store the position of the widget within the fixed
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* container */
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gint x = 50;
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gint y = 50;
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/* This callback function moves the button to a new position
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* in the Fixed container. */
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void move_button( GtkWidget *widget,
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GtkWidget *fixed )
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{
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x = (x + 30) % 300;
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y = (y + 50) % 300;
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gtk_fixed_move (GTK_FIXED (fixed), widget, x, y);
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}
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int main( int argc,
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char *argv[] )
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{
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/* GtkWidget is the storage type for widgets */
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GtkWidget *window;
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GtkWidget *fixed;
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GtkWidget *button;
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gint i;
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/* Initialise GTK */
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gtk_init (&argc, &argv);
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/* Create a new window */
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_title (GTK_WINDOW (window), "Fixed Container");
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/* Here we connect the "destroy" event to a signal handler */
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g_signal_connect (G_OBJECT (window), "destroy",
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G_CALLBACK (gtk_main_quit), NULL);
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/* Sets the border width of the window. */
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gtk_container_set_border_width (GTK_CONTAINER (window), 10);
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/* Create a Fixed Container */
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fixed = gtk_fixed_new ();
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gtk_container_add (GTK_CONTAINER (window), fixed);
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gtk_widget_show (fixed);
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for (i = 1 ; i <= 3 ; i++) {
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/* Creates a new button with the label "Press me" */
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button = gtk_button_new_with_label ("Press me");
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/* When the button receives the "clicked" signal, it will call the
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* function move_button() passing it the Fixed Container as its
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* argument. */
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g_signal_connect (G_OBJECT (button), "clicked",
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G_CALLBACK (move_button), fixed);
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/* This packs the button into the fixed containers window. */
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gtk_fixed_put (GTK_FIXED (fixed), button, i*50, i*50);
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/* The final step is to display this newly created widget. */
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gtk_widget_show (button);
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}
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/* Display the window */
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gtk_widget_show (window);
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/* Enter the event loop */
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gtk_main ();
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return 0;
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}
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