Logo Search packages:      
Sourcecode: navit version File versions

osd.c

/**
 * Navit, a modular navigation system.
 * Copyright (C) 2005-2008 Navit Team
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program 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, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA  02110-1301, USA.
 */

#include <glib.h>
#include "debug.h"
#include "plugin.h"
#include "item.h"
#include "color.h"
#include "point.h"
#include "navit.h"
#include "graphics.h"
#include "command.h"
#include "callback.h"
#include "osd.h"


00033 struct osd {
      struct osd_methods meth;
      struct osd_priv *priv;
};

struct osd *
osd_new(struct attr *parent, struct attr **attrs)
{
      struct osd *o;
      struct osd_priv *(*new)(struct navit *nav, struct osd_methods *meth, struct attr **attrs);
      struct attr *type=attr_search(attrs, NULL, attr_type);

      if (! type)
            return NULL;
        new=plugin_get_osd_type(type->u.str);
        if (! new)
                return NULL;
        o=g_new0(struct osd, 1);
        o->priv=new(parent->u.navit, &o->meth, attrs);
        return o;
}

void
osd_wrap_point(struct point *p, struct navit *nav)
{
      if (p->x < 0)
            p->x += navit_get_width(nav);
      if (p->y < 0)
            p->y += navit_get_height(nav);

}

void
osd_std_click(struct osd_item *this, struct navit *nav, int pressed, int button, struct point *p)
{
      struct point bp = this->p;
      osd_wrap_point(&bp, nav);
      if ((p->x < bp.x || p->y < bp.y || p->x > bp.x + this->w || p->y > bp.y + this->h || !this->configured) && !this->pressed)
            return;
      if (navit_ignore_button(nav))
            return;
      this->pressed = pressed;
      if (pressed) {
            struct attr navit;
            navit.type=attr_navit;
            navit.u.navit=nav;
            dbg(0, "calling command '%s'\n", this->command);
            command_evaluate(&navit, this->command);
      }
}

void
osd_std_resize(struct osd_item *item)
{
      graphics_overlay_resize(item->gr, &item->p, item->w, item->h, 65535, 1);
}
 
static void
osd_std_calculate_sizes(struct osd_item *item, struct osd_priv *priv, int w, int h) 
{
      struct attr vehicle_attr;

      if (item->rel_w) {
            item->w = (item->rel_w * w) / 100;
      }
 
      if (item->rel_h) {
            item->h = (item->rel_h * h) / 100;
      }
 
      if (item->rel_x) {
            item->p.x = (item->rel_x * w) / 100;
      }
 
      if (item->rel_y) {
            item->p.y = (item->rel_y * h) / 100;
      }

      osd_std_resize(item);
      if (item->meth.draw) {
            if (navit_get_attr(item->navit, attr_vehicle, &vehicle_attr, NULL)) {
                  item->meth.draw(priv, item->navit, vehicle_attr.u.vehicle);
            }
      }
}

static void
osd_std_reconfigure(struct osd_item *item, struct command_saved *cs)
{
      if (!command_saved_error(cs)) {
            graphics_overlay_disable(item->gr, !command_saved_get_int(cs));
      } else {
            dbg(0, "Error in saved command: %i\n", command_saved_error(cs));
      }
}

void
osd_set_std_attr(struct attr **attrs, struct osd_item *item, int flags)
{
      struct attr *attr;

      item->flags=flags;
      item->osd_configuration=-1;
      item->color_white.r = 0xffff;
      item->color_white.g = 0xffff;
      item->color_white.b = 0xffff;
      item->color_white.a = 0xffff;
      item->text_color.r = 0xffff;
      item->text_color.g = 0xffff;
      item->text_color.b = 0xffff;
      item->text_color.a = 0xffff;
      if (flags & 1) {
            item->color_bg.r = 0x0808;
            item->color_bg.g = 0x0808;
            item->color_bg.b = 0xf8f8;
            item->color_bg.a = 0x0000;
      } else {
            item->color_bg.r = 0x0;
            item->color_bg.g = 0x0;
            item->color_bg.b = 0x0;
            item->color_bg.a = 0x5fff;
      }

      attr=attr_search(attrs, NULL, attr_osd_configuration);
      if (attr)
            item->osd_configuration = attr->u.num;

      attr=attr_search(attrs, NULL, attr_enable_expression);
      if (attr) {
            item->enable_cs = command_saved_new(attr->u.str, item->navit, NULL);
      }

      attr = attr_search(attrs, NULL, attr_w);
      if (attr) {
            if (attr->u.num > ATTR_REL_MAXABS) {
                  item->rel_w = attr->u.num - ATTR_REL_RELSHIFT;
            } else {
                  item->rel_w = 0;
                  item->w = attr->u.num;
            }
      }

      attr = attr_search(attrs, NULL, attr_h);
      if (attr) {
            if (attr->u.num > ATTR_REL_MAXABS) {
                  item->rel_h = attr->u.num - ATTR_REL_RELSHIFT;
            } else {
                  item->rel_h = 0;
                  item->h = attr->u.num;
            }
      }

      attr = attr_search(attrs, NULL, attr_x);
      if (attr) {
            if (attr->u.num > ATTR_REL_MAXABS) {
                  item->rel_x = attr->u.num - ATTR_REL_RELSHIFT;
            } else {
                  item->rel_x = 0;
                  item->p.x = attr->u.num;
            }
      }

      attr = attr_search(attrs, NULL, attr_y);
      if (attr) {
            if (attr->u.num > ATTR_REL_MAXABS) {
                  item->rel_y = attr->u.num - ATTR_REL_RELSHIFT;
            } else {
                  item->rel_y = 0;
                  item->p.y = attr->u.num;
            }
      }

      attr = attr_search(attrs, NULL, attr_font_size);
      if (attr)
            item->font_size = attr->u.num;
      
      attr=attr_search(attrs, NULL, attr_background_color);
      if (attr)
            item->color_bg=*attr->u.color;
      attr = attr_search(attrs, NULL, attr_command);
      if (attr) 
            item->command = g_strdup(attr->u.str);
      attr=attr_search(attrs, NULL, attr_text_color);
      if (attr)
            item->text_color=*attr->u.color;
      attr=attr_search(attrs, NULL, attr_flags);
      if (attr)
            item->attr_flags=attr->u.num;
}

void
osd_std_config(struct osd_item *item, struct navit *navit)
{
      struct attr attr;
      dbg(1,"enter\n");
      if (item->enable_cs) {
            item->reconfig_cb = callback_new_1(callback_cast(osd_std_reconfigure), item);
            command_saved_set_cb(item->enable_cs, item->reconfig_cb);

            if (!command_saved_error(item->enable_cs)) {
                  item->configured = !! command_saved_get_int(item->enable_cs);
            } else {
                  dbg(0, "Error in saved command: %i.\n", command_saved_error(item->enable_cs));
            }
      } else {
            if (!navit_get_attr(navit, attr_osd_configuration, &attr, NULL))
                  attr.u.num=-1;
            item->configured = !!(attr.u.num & item->osd_configuration);
      }
      graphics_overlay_disable(item->gr, !item->configured);
}

void
osd_set_std_graphic(struct navit *nav, struct osd_item *item, struct osd_priv *priv)
{
      struct graphics *navit_gr;

      navit_gr = navit_get_graphics(nav);
      item->gr = graphics_overlay_new(navit_gr, &item->p, item->w, item->h, 65535, 1);

      item->graphic_bg = graphics_gc_new(item->gr);
      graphics_gc_set_foreground(item->graphic_bg, &item->color_bg);
      graphics_background_gc(item->gr, item->graphic_bg);

      item->graphic_fg_white = graphics_gc_new(item->gr);
      graphics_gc_set_foreground(item->graphic_fg_white, &item->color_white);

      if (item->flags & 2) {
            item->font = graphics_font_new(item->gr, item->font_size, 1);
            item->graphic_fg_text = graphics_gc_new(item->gr);
            graphics_gc_set_foreground(item->graphic_fg_text, &item->text_color);
      }

      item->cb = callback_new_attr_2(callback_cast(osd_std_config), attr_osd_configuration, item, nav);
      navit_add_callback(nav, item->cb);

      item->resize_cb = callback_new_attr_2(callback_cast(osd_std_calculate_sizes), attr_resize, item, priv);
      graphics_add_callback(navit_gr, item->resize_cb);

      osd_std_config(item, nav);
}

void
osd_std_draw(struct osd_item *item)
{
      struct point p[2];
      int flags=item->attr_flags;

      graphics_draw_mode(item->gr, draw_mode_begin);
      p[0].x=0;
      p[0].y=0;
      graphics_draw_rectangle(item->gr, item->graphic_bg, p, item->w, item->h);
      p[1].x=item->w-1;
      p[1].y=0;
      if (flags & 1) 
            graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
      p[0].x=item->w-1;
      p[0].y=item->h-1;
      if (flags & 2) 
            graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
      p[1].x=0;
      p[1].y=item->h-1;
      if (flags & 4) 
            graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
      p[0].x=0;
      p[0].y=0;
      if (flags & 8) 
            graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
}

Generated by  Doxygen 1.6.0   Back to index