test_abs_factory.c

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#include <stdio.h>
#include "win_factory.h"
#include "osx_factory.h"

static void
generate_gui (gui_factory_handle gui_factory_h)
{
    button_handle button1 = NULL, button2 = NULL, button3 = NULL;

    if (NULL == gui_factory_h) {
        return;
    }

    /* 
     * The will create some buttons, call their paint functions, and then delete
     * them.  Use your imagination for much more complicated GUIs being built in
     * real life.
     */
    button1 = gui_factory_create_button(gui_factory_h);
    if (NULL == button1) {
        goto err_exit;
    }

    button2 = gui_factory_create_button(gui_factory_h);
    if (NULL == button2) {
        goto err_exit;
    }

    button3 = gui_factory_create_button(gui_factory_h);
    if (NULL == button3) {
        goto err_exit;
    }

    button_paint(button1);
    button_paint(button2);
    button_paint(button3);

    button_delete(button1);
    button_delete(button2);
    button_delete(button3);

    return;

err_exit:

    if (NULL != button1) {
        button_delete(button1);
    }

    if (NULL != button2) {
        button_delete(button2);
    }

    if (NULL != button3) {
        button_delete(button3);
    }
}

int 
main (int argc, char *argv[])
{
    win_factory_handle win_factory_h;
    osx_factory_handle osx_factory_h;

    win_factory_h = win_factory_new1();
    if (NULL == win_factory_h) {
        return (1);
    }

    osx_factory_h = osx_factory_new1();
    if (NULL == osx_factory_h) {
        return (1);
    }

    printf("\n*** Generating Windows GUI ***\n\n");
    generate_gui(win_factory_cast_to_gui_factory(win_factory_h));
    printf("\n*** Generating OSX GUI ***\n\n");
    generate_gui(osx_factory_cast_to_gui_factory(osx_factory_h));

    win_factory_delete(win_factory_h);
    osx_factory_delete(osx_factory_h);

    printf("\n");

    return (0);
}