#include <Ewl.h>
#include <stdio.h>

static void cb_window_destroy(Ewl_Widget *w, void *ev, void *data);
static void cb_window_close(Ewl_Widget *w, void *ev, void *data);
static void cb_key_down(Ewl_Widget *w, void *ev, void *data);

static void cb_clicked(Ewl_Widget *w, void *ev, void *data);

int main(int argc, char ** argv)
    {
        Ewl_Widget *win, *scroll, *o, *s, *box, *so, *button, *vbox;
	
        if (!ewl_init(&argc, argv))
        {
            fprintf(stderr, "Unable to init Elive Image Viewer.\n");
            return 1;
        }

        if (argc < 2)
        {
            fprintf(stderr, "Need image to view .\n");
            return 1;
        }

	/*main window*/
        win = ewl_window_new();
        ewl_window_title_set(EWL_WINDOW(win), "Elive Image Viewer");
        ewl_window_class_set(EWL_WINDOW(win), "elive_image_viewer");
        ewl_window_name_set(EWL_WINDOW(win), "elive_image_viewer");
        ewl_object_fill_policy_set(EWL_OBJECT(win), EWL_FLAG_FILL_ALL);
        ewl_object_size_request(EWL_OBJECT(win), 640, 480);
        ewl_callback_append(win, EWL_CALLBACK_DELETE_WINDOW, cb_window_close, NULL);
        ewl_callback_append(win, EWL_CALLBACK_KEY_DOWN, cb_key_down, NULL);
        ewl_callback_append(win, EWL_CALLBACK_DESTROY, cb_window_destroy, NULL);
        ewl_widget_name_set(win, "main_win");
	ewl_widget_show(win);
	
	/*vertical box*/
	vbox = ewl_vbox_new();
	ewl_object_fill_policy_set(EWL_OBJECT(vbox), EWL_FLAG_FILL_ALL);
	ewl_container_child_append(EWL_CONTAINER(win), vbox);
	ewl_widget_name_set(vbox, "Vertical Box");
	ewl_widget_show(vbox);
	/*\vertical box*/
	
	/*notebox where the image will be in*/
	box = ewl_notebook_new();
	ewl_notebook_tabbar_visible_set(EWL_NOTEBOOK(box), FALSE);
	ewl_object_fill_policy_set(EWL_OBJECT(box), EWL_FLAG_FILL_ALL);
	ewl_container_child_append(EWL_CONTAINER(vbox), box);
        ewl_widget_name_set(box, "Image Box");
        ewl_widget_show(box);                   
        /*\notebox where the image will be in*/
	
	/*scroll bar*/
	so = ewl_scrollpane_new();
	ewl_scrollpane_hscrollbar_flag_set(EWL_SCROLLPANE(so), EWL_SCROLLPANE_FLAG_ALWAYS_HIDDEN);
	ewl_scrollpane_vscrollbar_flag_set(EWL_SCROLLPANE(so), EWL_SCROLLPANE_FLAG_ALWAYS_HIDDEN);
	//ewl_scrollpane_hscrollbar_flag_set(EWL_SCROLLPANE(so), EWL_SCROLLPANE_FLAG_AUTO_VISIBLE);  
	//ewl_scrollpane_vscrollbar_flag_set(EWL_SCROLLPANE(so), EWL_SCROLLPANE_FLAG_AUTO_VISIBLE);
	ewl_container_child_append(EWL_CONTAINER(box), so);
	ewl_widget_name_set(so, "ScrollBar");
	ewl_widget_show(so);
	/*\scroll bar*/
	
	/*button*/
	button = ewl_button_new();
        ewl_button_label_set(EWL_BUTTON(button), "Original");
        ewl_callback_append(button, EWL_CALLBACK_CLICKED, cb_clicked, NULL);
        ewl_object_fill_policy_set(EWL_OBJECT(button), EWL_FLAG_FILL_SHRINK);
        ewl_container_child_append(EWL_CONTAINER(vbox), button);
        ewl_widget_show(button);
	/*\button*/


	o = ewl_image_new();
	ewl_image_file_path_set(EWL_IMAGE(o), argv[1]);
	ewl_object_fill_policy_set(EWL_OBJECT(o), EWL_FLAG_FILL_ALL);
	ewl_container_child_append(EWL_CONTAINER(so), o);
	ewl_widget_name_set(o, "image");
	ewl_widget_show(o);
	
        ewl_main();
        return 0;
}

/*button call back*/

static void cb_clicked(Ewl_Widget *w, void *ev, void *data)
    {
        Ewl_Widget *ok, *so, *k;
	ok = ewl_widget_name_find("Original");
	so = ewl_widget_name_find("ScrollBar");
	k = ewl_widget_name_find("image");
        if (!so) return;
        if (!k) return;
	
	if (!ok)
	{
		printf("u just clicked on Scale\n");
		ewl_button_label_set(EWL_BUTTON(w), "Fit");
		ewl_scrollpane_hscrollbar_flag_set(EWL_SCROLLPANE(so), EWL_SCROLLPANE_FLAG_AUTO_VISIBLE);  
		ewl_scrollpane_vscrollbar_flag_set(EWL_SCROLLPANE(so), EWL_SCROLLPANE_FLAG_AUTO_VISIBLE);
		ewl_object_fill_policy_set(EWL_OBJECT(k), EWL_FLAG_FILL_NONE);
	}
	else
	{
		printf("else is here\n");
		ewl_button_label_set(EWL_BUTTON(w), "Original");
		ewl_scrollpane_hscrollbar_flag_set(EWL_SCROLLPANE(so), EWL_SCROLLPANE_FLAG_ALWAYS_HIDDEN);
		ewl_scrollpane_vscrollbar_flag_set(EWL_SCROLLPANE(so), EWL_SCROLLPANE_FLAG_ALWAYS_HIDDEN);
		ewl_object_fill_policy_set(EWL_OBJECT(k), EWL_FLAG_FILL_ALL);
	}
}

/*end of button call back*/


static void cb_window_destroy(Ewl_Widget *w, void *ev, void *data)
	{
	ewl_main_quit();
}

static void cb_window_close(Ewl_Widget *w, void *ev, void *data)
	{
	ewl_widget_destroy(w);
}

static void cb_key_down(Ewl_Widget *w, void *ev, void *data)
	{
	Ewl_Event_Key_Down *e;

        e = ev;

        if (!strcmp(e->base.keyname, "Escape")|| !strcmp(e->base.keyname, "q"))
        {
            Ewl_Widget *win;
            win = ewl_widget_name_find("main_win");
            ewl_widget_destroy(win);
        }
}