GTK Gossip: GtkArrow

GtkArrow是個很方便的元件，可以讓您畫出上、下、左、右方向的箭頭，您可以把它放到按鈕之類的元件上顯示箭頭，例如：

gtkarrow_demo.c

#include <gtk/gtk.h>

GtkWidget *create_gtk_arrow(GtkArrowType arrow_type,

GtkShadowType shadow_type) {

GtkWidget *arrow;

GtkWidget *button;

arrow = gtk_arrow_new(arrow_type, shadow_type);

button = gtk_button_new();

gtk_container_add(GTK_CONTAINER(button), arrow);

return button;

}

int main(int argc, char *argv[]) {

GtkWidget *window;

GtkWidget *table;

GtkWidget *button;

gtk_init (&argc, &argv);

window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

gtk_window_set_title(GTK_WINDOW (window), "GtkArrow");

gtk_window_set_default_size(GTK_WINDOW(window), 250, 150);

table = gtk_table_new(3, 3, TRUE);

gtk_table_attach_defaults(GTK_TABLE(table),

create_gtk_arrow(GTK_ARROW_UP, GTK_SHADOW_IN), 1, 2, 0, 1);

gtk_table_attach_defaults(GTK_TABLE(table),

create_gtk_arrow(GTK_ARROW_LEFT, GTK_SHADOW_OUT), 0, 1, 1, 2);

gtk_table_attach_defaults(GTK_TABLE(table),

create_gtk_arrow(GTK_ARROW_DOWN, GTK_SHADOW_ETCHED_IN), 1, 2, 2, 3);

gtk_table_attach_defaults(GTK_TABLE(table),

create_gtk_arrow(GTK_ARROW_RIGHT, GTK_SHADOW_ETCHED_OUT), 2, 3, 1, 2);

gtk_container_add(GTK_CONTAINER (window), table);

g_signal_connect(G_OBJECT (window), "destroy",

G_CALLBACK (gtk_main_quit), NULL);

gtk_widget_show_all(window);

gtk_main();

return 0;

}

上面這個程式建立四個有箭頭顯示的按鈕，並放置到

GtkTable

之中，一個執行的結果如下所示：