/***************************************************************************
 *            guiw_gpsfile.c
 *
 *  2012-02-21
 *  Copyright (C) 2012  Steffen Pohle
 *  steffen@gulpe.de
 ****************************************************************************/

/* 
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * main.c is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU  General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "osmroute.h"
#include "draw.h"
#include "gui.h"
#include "system.h"
#include "gps.h"

enum {
	GPSWIN_UNDEF = 0,
	GPSWIN_PAUSEPLAY,
	GPSWIN_JUMP,
	GPSWIN_CLOSE
};

static GUIWindow gpswin = {0};
void gpswin_closecallback ();
void gpswin_btndraw (GUIButton *btn);
void gpswin_btnjump(int x, int y);
void gpswin_btnpauseplay(int x, int y);
void gpswin_btnclose(int x, int y);

void gpswin_show () {
	d_printf ("GUI: gps file screen");
	if (gpswin.screen == NULL) guiwindow_new (&gpswin, 250, 32);

	gpswin.screen_changed = 1;
	gpswin.callback_close = (void*)gpswin_closecallback;
	gpswin.style = WGUI_S_VCENTER | WGUI_S_HBOTTOM;

	/* add buttons */
	strncpy (gpswin.buttons[0].caption, _("P"), GUI_TEXTLEN);
	gpswin.buttons[0].callback_clicked = (void*)gpswin_btnpauseplay;
	gpswin.buttons[0].id = GPSWIN_PAUSEPLAY;
	gpswin.buttons[0].callback_draw = (void*)gpswin_btndraw;
	gpswin.buttons[0].w = 31;
	gpswin.buttons[0].h = 31;
	gpswin.buttons[0].x = 0;
	gpswin.buttons[0].y = 0;
		
	strncpy (gpswin.buttons[1].caption, _("-"), GUI_TEXTLEN);
	gpswin.buttons[1].callback_clicked = (void*)gpswin_btnjump;
	gpswin.buttons[1].callback_draw = (void*)gpswin_btndraw;
	gpswin.buttons[1].id = GPSWIN_JUMP;
	gpswin.buttons[1].w = 250-32*2;
	gpswin.buttons[1].h = 31;
	gpswin.buttons[1].x = 32;
	gpswin.buttons[1].y = 0;

	strncpy (gpswin.buttons[2].caption, _("Close"), GUI_TEXTLEN);
	gpswin.buttons[2].callback_clicked = (void*)gpswin_btnclose;
	gpswin.buttons[2].id = GPSWIN_CLOSE;
	gpswin.buttons[2].w = 32;
	gpswin.buttons[2].h = 31;
	gpswin.buttons[2].x = 250-32;
	gpswin.buttons[2].y = 0;

	gui_show (&gpswin);
};



void gpswin_closecallback () {
	d_printf ("GUI: gps win close");
	guiwindow_close (&gpswin);
};


void gpswin_btndraw (GUIButton *btn) {
	int i;
	if (btn->id == GPSWIN_PAUSEPLAY) {
		i = gps_file_get_state ();
		if (i == GPSF_END) btn->col = &color[COLOR_white][1];
		else if (i == GPSF_INIT) btn->col = &color[COLOR_green][0];
		else if (i == GPSF_RUN) btn->col = &color[COLOR_green][2];
		else if (i == GPSF_PAUSE) btn->col = &color[COLOR_redgray][1];
		else btn->col = &color[COLOR_red][2];

		gui_button_draw (btn);
	}
	else if (btn->id == GPSWIN_JUMP) {
		struct line_style ls;
		int x;

		if (gps_file_get_size () == 0) x = 0;
		else x = (btn->w * gps_file_get_pos()) / gps_file_get_size ();
		
		ls.width = 1.0;
		ls.c = ls.borderc = color[COLOR_white][3];

		draw_polygonstart ();
		draw_polygonadd (btn->x, btn->y);
		draw_polygonadd (btn->x + x, btn->y);
		draw_polygonadd (btn->x + x, btn->y + btn->h);
		draw_polygonadd (btn->x, btn->y + btn->h);
		draw_polygonfinish (currentwin->screen, ls, color[COLOR_white][1], 1);

		draw_polygonstart ();
		draw_polygonadd (btn->x + x, btn->y);
		draw_polygonadd (btn->x + btn->w, btn->y);
		draw_polygonadd (btn->x + btn->w, btn->y + btn->h);
		draw_polygonadd (btn->x + x, btn->y + btn->h);
		draw_polygonfinish (currentwin->screen, ls, color[COLOR_white][0], 1);

		draw_line (currentwin->screen, btn->x + x, btn->y, btn->x + x, btn->y + btn->h, ls);  
	}
};


void gpswin_btnjump(int x, int y) {
	int pos = x * gps_file_get_size() / (250-64);
	gpswin.screen_changed = 1;
	draw_set_flag (DRAW_GPSFOLLOW);
	gps_file_set_pos (pos);
	draw ();
};


void gpswin_btnclose(int x, int y) {
	gui_close();
};


void gpswin_btnpauseplay(int x, int y) {
	gpswin.screen_changed = 1;
	if (gps_file_get_state () == GPSF_PAUSE) gps_file_set_state (GPSF_RUN);
	else gps_file_set_state (GPSF_PAUSE);
	draw ();
};