git.maemo.org Git - navit-package/blob - navit/osd.c

   1 /**
   2  * Navit, a modular navigation system.
   3  * Copyright (C) 2005-2008 Navit Team
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * version 2 as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include <glib.h>
  21 #include "debug.h"
  22 #include "plugin.h"
  23 #include "item.h"
  24 #include "color.h"
  25 #include "point.h"
  26 #include "navit.h"
  27 #include "graphics.h"
  28 #include "command.h"
  29 #include "callback.h"
  30 #include "osd.h"
  31
  32
  33 struct osd {
  34         struct osd_methods meth;
  35         struct osd_priv *priv;
  36 };
  37
  38 struct osd *
  39 osd_new(struct attr *parent, struct attr **attrs)
  40 {
  41         struct osd *o;
  42         struct osd_priv *(*new)(struct navit *nav, struct osd_methods *meth, struct attr **attrs);
  43         struct attr *type=attr_search(attrs, NULL, attr_type);
  44
  45         if (! type)
  46                 return NULL;
  47         new=plugin_get_osd_type(type->u.str);
  48         if (! new)
  49                 return NULL;
  50         o=g_new0(struct osd, 1);
  51         o->priv=new(parent->u.navit, &o->meth, attrs);
  52         return o;
  53 }
  54
  55 void
  56 osd_wrap_point(struct point *p, struct navit *nav)
  57 {
  58         if (p->x < 0)
  59                 p->x += navit_get_width(nav);
  60         if (p->y < 0)
  61                 p->y += navit_get_height(nav);
  62
  63 }
  64
  65 void
  66 osd_std_click(struct osd_item *this, struct navit *nav, int pressed, int button, struct point *p)
  67 {
  68         struct point bp = this->p;
  69         osd_wrap_point(&bp, nav);
  70         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)
  71                 return;
  72         if (navit_ignore_button(nav))
  73                 return;
  74         this->pressed = pressed;
  75         if (pressed && this->command) {
  76                 struct attr navit;
  77                 navit.type=attr_navit;
  78                 navit.u.navit=nav;
  79                 dbg(0, "calling command '%s'\n", this->command);
  80                 command_evaluate(&navit, this->command);
  81         }
  82 }
  83
  84 void
  85 osd_std_resize(struct osd_item *item)
  86 {
  87         graphics_overlay_resize(item->gr, &item->p, item->w, item->h, 65535, 1);
  88 }
  89
  90 static void
  91 osd_std_calculate_sizes(struct osd_item *item, struct osd_priv *priv, int w, int h)
  92 {
  93         struct attr vehicle_attr;
  94
  95         if (item->rel_w) {
  96                 item->w = (item->rel_w * w) / 100;
  97         }
  98
  99         if (item->rel_h) {
 100                 item->h = (item->rel_h * h) / 100;
 101         }
 102
 103         if (item->rel_x) {
 104                 item->p.x = (item->rel_x * w) / 100;
 105         }
 106
 107         if (item->rel_y) {
 108                 item->p.y = (item->rel_y * h) / 100;
 109         }
 110
 111         osd_std_resize(item);
 112         if (item->meth.draw) {
 113                 if (navit_get_attr(item->navit, attr_vehicle, &vehicle_attr, NULL)) {
 114                         item->meth.draw(priv, item->navit, vehicle_attr.u.vehicle);
 115                 }
 116         }
 117 }
 118
 119 static void
 120 osd_std_reconfigure(struct osd_item *item, struct command_saved *cs)
 121 {
 122         if (!command_saved_error(cs)) {
 123                 graphics_overlay_disable(item->gr, !command_saved_get_int(cs));
 124         } else {
 125                 dbg(0, "Error in saved command: %i\n", command_saved_error(cs));
 126         }
 127 }
 128
 129 void
 130 osd_set_std_attr(struct attr **attrs, struct osd_item *item, int flags)
 131 {
 132         struct attr *attr;
 133
 134         item->flags=flags;
 135         item->osd_configuration=-1;
 136         item->color_white.r = 0xffff;
 137         item->color_white.g = 0xffff;
 138         item->color_white.b = 0xffff;
 139         item->color_white.a = 0xffff;
 140         item->text_color.r = 0xffff;
 141         item->text_color.g = 0xffff;
 142         item->text_color.b = 0xffff;
 143         item->text_color.a = 0xffff;
 144         if (flags & 1) {
 145                 item->color_bg.r = 0x0808;
 146                 item->color_bg.g = 0x0808;
 147                 item->color_bg.b = 0xf8f8;
 148                 item->color_bg.a = 0x0000;
 149         } else {
 150                 item->color_bg.r = 0x0;
 151                 item->color_bg.g = 0x0;
 152                 item->color_bg.b = 0x0;
 153                 item->color_bg.a = 0x5fff;
 154         }
 155
 156         attr=attr_search(attrs, NULL, attr_osd_configuration);
 157         if (attr)
 158                 item->osd_configuration = attr->u.num;
 159
 160         attr=attr_search(attrs, NULL, attr_enable_expression);
 161         if (attr) {
 162                 item->enable_cs = command_saved_new(attr->u.str, item->navit, NULL);
 163         }
 164
 165         attr = attr_search(attrs, NULL, attr_w);
 166         if (attr) {
 167                 if (attr->u.num > ATTR_REL_MAXABS) {
 168                         item->rel_w = attr->u.num - ATTR_REL_RELSHIFT;
 169                 } else {
 170                         item->rel_w = 0;
 171                         item->w = attr->u.num;
 172                 }
 173         }
 174
 175         attr = attr_search(attrs, NULL, attr_h);
 176         if (attr) {
 177                 if (attr->u.num > ATTR_REL_MAXABS) {
 178                         item->rel_h = attr->u.num - ATTR_REL_RELSHIFT;
 179                 } else {
 180                         item->rel_h = 0;
 181                         item->h = attr->u.num;
 182                 }
 183         }
 184
 185         attr = attr_search(attrs, NULL, attr_x);
 186         if (attr) {
 187                 if (attr->u.num > ATTR_REL_MAXABS) {
 188                         item->rel_x = attr->u.num - ATTR_REL_RELSHIFT;
 189                 } else {
 190                         item->rel_x = 0;
 191                         item->p.x = attr->u.num;
 192                 }
 193         }
 194
 195         attr = attr_search(attrs, NULL, attr_y);
 196         if (attr) {
 197                 if (attr->u.num > ATTR_REL_MAXABS) {
 198                         item->rel_y = attr->u.num - ATTR_REL_RELSHIFT;
 199                 } else {
 200                         item->rel_y = 0;
 201                         item->p.y = attr->u.num;
 202                 }
 203         }
 204
 205         attr = attr_search(attrs, NULL, attr_font_size);
 206         if (attr)
 207                 item->font_size = attr->u.num;
 208
 209         attr=attr_search(attrs, NULL, attr_background_color);
 210         if (attr)
 211                 item->color_bg=*attr->u.color;
 212         attr = attr_search(attrs, NULL, attr_command);
 213         if (attr)
 214                 item->command = g_strdup(attr->u.str);
 215         attr=attr_search(attrs, NULL, attr_text_color);
 216         if (attr)
 217                 item->text_color=*attr->u.color;
 218         attr=attr_search(attrs, NULL, attr_flags);
 219         if (attr)
 220                 item->attr_flags=attr->u.num;
 221 }
 222
 223 void
 224 osd_std_config(struct osd_item *item, struct navit *navit)
 225 {
 226         struct attr attr;
 227         dbg(1,"enter\n");
 228         if (item->enable_cs) {
 229                 item->reconfig_cb = callback_new_1(callback_cast(osd_std_reconfigure), item);
 230                 command_saved_set_cb(item->enable_cs, item->reconfig_cb);
 231
 232                 if (!command_saved_error(item->enable_cs)) {
 233                         item->configured = !! command_saved_get_int(item->enable_cs);
 234                 } else {
 235                         dbg(0, "Error in saved command: %i.\n", command_saved_error(item->enable_cs));
 236                 }
 237         } else {
 238                 if (!navit_get_attr(navit, attr_osd_configuration, &attr, NULL))
 239                         attr.u.num=-1;
 240                 item->configured = !!(attr.u.num & item->osd_configuration);
 241         }
 242         graphics_overlay_disable(item->gr, !item->configured);
 243 }
 244
 245 void
 246 osd_set_std_graphic(struct navit *nav, struct osd_item *item, struct osd_priv *priv)
 247 {
 248         struct graphics *navit_gr;
 249
 250         navit_gr = navit_get_graphics(nav);
 251         item->gr = graphics_overlay_new(navit_gr, &item->p, item->w, item->h, 65535, 1);
 252
 253         item->graphic_bg = graphics_gc_new(item->gr);
 254         graphics_gc_set_foreground(item->graphic_bg, &item->color_bg);
 255         graphics_background_gc(item->gr, item->graphic_bg);
 256
 257         item->graphic_fg_white = graphics_gc_new(item->gr);
 258         graphics_gc_set_foreground(item->graphic_fg_white, &item->color_white);
 259
 260         if (item->flags & 2) {
 261                 item->font = graphics_font_new(item->gr, item->font_size, 1);
 262                 item->graphic_fg_text = graphics_gc_new(item->gr);
 263                 graphics_gc_set_foreground(item->graphic_fg_text, &item->text_color);
 264         }
 265
 266         item->cb = callback_new_attr_2(callback_cast(osd_std_config), attr_osd_configuration, item, nav);
 267         navit_add_callback(nav, item->cb);
 268
 269         item->resize_cb = callback_new_attr_2(callback_cast(osd_std_calculate_sizes), attr_resize, item, priv);
 270         graphics_add_callback(navit_gr, item->resize_cb);
 271
 272         osd_std_config(item, nav);
 273 }
 274
 275 void
 276 osd_std_draw(struct osd_item *item)
 277 {
 278         struct point p[2];
 279         int flags=item->attr_flags;
 280
 281         graphics_draw_mode(item->gr, draw_mode_begin);
 282         p[0].x=0;
 283         p[0].y=0;
 284         graphics_draw_rectangle(item->gr, item->graphic_bg, p, item->w, item->h);
 285         p[1].x=item->w-1;
 286         p[1].y=0;
 287         if (flags & 1)
 288                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 289         p[0].x=item->w-1;
 290         p[0].y=item->h-1;
 291         if (flags & 2)
 292                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 293         p[1].x=0;
 294         p[1].y=item->h-1;
 295         if (flags & 4)
 296                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 297         p[0].x=0;
 298         p[0].y=0;
 299         if (flags & 8)
 300                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 301 }