Gtk实现GUI键盘并终端显示

整体思路：建立一个table，建立一个button，在对这个button处理后，按照table的(0,1,0,1)(左右上下)位置来嵌入button，注意的是，这里的button可以重复使用，就像接下来的程序中只用一个button就完成了整个键盘的按键。

利用gtk的table实现二维的button，button较多时编程比较繁琐。

#include <gtk/gtk.h>
void callback( GtkWidget *widget, gpointer data)
{g_print ("%s", (char *) data);
}
gint delete_event( GtkWidget *widget, GdkEvent *event,gpointer data )
{gtk_main_quit ();return FALSE;
}
int main( int argc, char *argv[] )
{GtkWidget *window;GtkWidget *button;GtkWidget *table;gtk_init (&argc, &argv);window = gtk_window_new (GTK_WINDOW_TOPLEVEL);gtk_window_set_title (GTK_WINDOW (window), "Rong Tao'sKeyboard");g_signal_connect (G_OBJECT (window), "delete_event", G_CALLBACK (delete_event), NULL);gtk_container_set_border_width (GTK_CONTAINER(window), 20);table = gtk_table_new (4, 20, TRUE);gtk_container_add (GTK_CONTAINER (window), table);button = gtk_button_new_with_label ("Q");g_signal_connect (G_OBJECT (button), "clicked",G_CALLBACK (callback), (gpointer) "q");gtk_table_attach_defaults (GTK_TABLE (table), button,0, 2, 0, 1);gtk_widget_show (button);button = gtk_button_new_with_label ("W");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "w");gtk_table_attach_defaults (GTK_TABLE (table), button, 2, 4, 0,1);gtk_widget_show (button);button = gtk_button_new_with_label ("E");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "e");gtk_table_attach_defaults (GTK_TABLE (table), button, 4, 6, 0,1);gtk_widget_show (button);button = gtk_button_new_with_label ("R");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "r");gtk_table_attach_defaults (GTK_TABLE (table), button, 6, 8, 0,1);gtk_widget_show (button);button = gtk_button_new_with_label ("T");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "t");gtk_table_attach_defaults (GTK_TABLE (table), button, 8, 10, 0,1);gtk_widget_show (button);button = gtk_button_new_with_label ("Y");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "y");gtk_table_attach_defaults (GTK_TABLE (table), button, 10, 12, 0,1);gtk_widget_show (button);button = gtk_button_new_with_label ("U");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "u");gtk_table_attach_defaults (GTK_TABLE (table), button, 12, 14, 0,1);gtk_widget_show (button);button = gtk_button_new_with_label ("I");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "i");gtk_table_attach_defaults (GTK_TABLE (table), button, 14, 16, 0,1);gtk_widget_show (button);button = gtk_button_new_with_label ("O");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "o");gtk_table_attach_defaults (GTK_TABLE (table), button, 16, 18, 0,1);gtk_widget_show (button);button = gtk_button_new_with_label ("P");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "p");gtk_table_attach_defaults (GTK_TABLE (table), button, 18, 20, 0,1);gtk_widget_show (button);button = gtk_button_new_with_label ("A");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "a");gtk_table_attach_defaults (GTK_TABLE (table), button, 1, 3, 1,2);gtk_widget_show (button);button = gtk_button_new_with_label ("S");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "s");gtk_table_attach_defaults (GTK_TABLE (table), button, 3, 5, 1,2);gtk_widget_show (button);button = gtk_button_new_with_label ("D");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "d");gtk_table_attach_defaults (GTK_TABLE (table), button, 5, 7, 1,2);gtk_widget_show (button);button = gtk_button_new_with_label ("F");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "f");gtk_table_attach_defaults (GTK_TABLE (table), button, 7, 9, 1,2);gtk_widget_show (button);button = gtk_button_new_with_label ("G");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "g");gtk_table_attach_defaults (GTK_TABLE (table), button, 9, 11, 1,2);gtk_widget_show (button);button = gtk_button_new_with_label ("H");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "h");gtk_table_attach_defaults (GTK_TABLE (table), button, 11, 13, 1,2);gtk_widget_show (button);button = gtk_button_new_with_label ("J");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "j");gtk_table_attach_defaults (GTK_TABLE (table), button, 13, 15, 1,2);gtk_widget_show (button);button = gtk_button_new_with_label ("K");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "k");gtk_table_attach_defaults (GTK_TABLE (table), button, 15, 17, 1,2);gtk_widget_show (button);button = gtk_button_new_with_label ("L");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "l");gtk_table_attach_defaults (GTK_TABLE (table), button, 17, 19, 1,2);gtk_widget_show (button);button = gtk_button_new_with_label ("'");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "'");gtk_table_attach_defaults (GTK_TABLE (table), button, 0, 2, 2,3);gtk_widget_show (button);button = gtk_button_new_with_label ("Z");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "z");gtk_table_attach_defaults (GTK_TABLE (table), button, 2, 4, 2,3);gtk_widget_show (button);button = gtk_button_new_with_label ("X");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "x");gtk_table_attach_defaults (GTK_TABLE (table), button, 4, 6, 2,3);gtk_widget_show (button);button = gtk_button_new_with_label ("C");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "c");gtk_table_attach_defaults (GTK_TABLE (table), button, 6, 8, 2,3);gtk_widget_show (button);button = gtk_button_new_with_label ("V");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "v");gtk_table_attach_defaults (GTK_TABLE (table), button, 8, 10, 2,3);gtk_widget_show (button);button = gtk_button_new_with_label ("B");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "b");gtk_table_attach_defaults (GTK_TABLE (table), button, 10, 12, 2,3);gtk_widget_show (button);button = gtk_button_new_with_label ("N");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "n");gtk_table_attach_defaults (GTK_TABLE (table), button, 12, 14, 2,3);gtk_widget_show (button);button = gtk_button_new_with_label ("M");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "m");gtk_table_attach_defaults (GTK_TABLE (table), button, 14, 16, 2,3);gtk_widget_show (button);button = gtk_button_new_with_label (",");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) ",");gtk_table_attach_defaults (GTK_TABLE (table), button, 16, 18, 2,3);gtk_widget_show (button);button = gtk_button_new_with_label (".");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) ".");gtk_table_attach_defaults (GTK_TABLE (table), button, 18, 20, 2,3);gtk_widget_show (button);button = gtk_button_new_with_label ("Enter");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) "\n");gtk_table_attach_defaults (GTK_TABLE (table), button, 2, 6, 3,4);gtk_widget_show (button);button = gtk_button_new_with_label ("Space");g_signal_connect (G_OBJECT (button), "clicked",  G_CALLBACK(callback), (gpointer) " ");gtk_table_attach_defaults (GTK_TABLE (table), button, 6, 16, 3,4);gtk_widget_show (button);button = gtk_button_new_with_label ("Quit");g_signal_connect (G_OBJECT (button), "clicked", G_CALLBACK (delete_event), NULL);gtk_table_attach_defaults (GTK_TABLE (table), button,16, 19, 3, 4);gtk_widget_show (button);gtk_widget_show (table);gtk_widget_show (window);gtk_main ();return 0;
}

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Gtk实现GUI键盘并终端显示

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