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 (button != 1)
  73                 return;
  74         if (!!pressed == !!this->pressed)
  75                 return;
  76         if (navit_ignore_button(nav))
  77                 return;
  78         this->pressed = pressed;
  79         if (pressed && this->command) {
  80                 struct attr navit;
  81                 navit.type=attr_navit;
  82                 navit.u.navit=nav;
  83                 dbg(0, "calling command '%s'\n", this->command);
  84                 command_evaluate(&navit, this->command);
  85         }
  86 }
  87
  88 void
  89 osd_std_resize(struct osd_item *item)
  90 {
  91         graphics_overlay_resize(item->gr, &item->p, item->w, item->h, 65535, 1);
  92 }
  93
  94 static void
  95 osd_std_calculate_sizes(struct osd_item *item, struct osd_priv *priv, int w, int h)
  96 {
  97         struct attr vehicle_attr;
  98
  99         if (item->rel_w) {
 100                 item->w = (item->rel_w * w) / 100;
 101         }
 102
 103         if (item->rel_h) {
 104                 item->h = (item->rel_h * h) / 100;
 105         }
 106
 107         if (item->rel_x) {
 108                 item->p.x = (item->rel_x * w) / 100;
 109         }
 110
 111         if (item->rel_y) {
 112                 item->p.y = (item->rel_y * h) / 100;
 113         }
 114
 115         osd_std_resize(item);
 116         if (item->meth.draw) {
 117                 if (navit_get_attr(item->navit, attr_vehicle, &vehicle_attr, NULL)) {
 118                         item->meth.draw(priv, item->navit, vehicle_attr.u.vehicle);
 119                 }
 120         }
 121 }
 122
 123 static void
 124 osd_std_reconfigure(struct osd_item *item, struct command_saved *cs)
 125 {
 126         if (!command_saved_error(cs)) {
 127                 graphics_overlay_disable(item->gr, !command_saved_get_int(cs));
 128         } else {
 129                 dbg(0, "Error in saved command: %i\n", command_saved_error(cs));
 130         }
 131 }
 132
 133 void
 134 osd_set_std_attr(struct attr **attrs, struct osd_item *item, int flags)
 135 {
 136         struct attr *attr;
 137
 138         item->flags=flags;
 139         item->osd_configuration=-1;
 140         item->color_white.r = 0xffff;
 141         item->color_white.g = 0xffff;
 142         item->color_white.b = 0xffff;
 143         item->color_white.a = 0xffff;
 144         item->text_color.r = 0xffff;
 145         item->text_color.g = 0xffff;
 146         item->text_color.b = 0xffff;
 147         item->text_color.a = 0xffff;
 148         if (flags & 1) {
 149                 item->color_bg.r = 0x0808;
 150                 item->color_bg.g = 0x0808;
 151                 item->color_bg.b = 0xf8f8;
 152                 item->color_bg.a = 0x0000;
 153         } else {
 154                 item->color_bg.r = 0x0;
 155                 item->color_bg.g = 0x0;
 156                 item->color_bg.b = 0x0;
 157                 item->color_bg.a = 0x5fff;
 158         }
 159
 160         attr=attr_search(attrs, NULL, attr_osd_configuration);
 161         if (attr)
 162                 item->osd_configuration = attr->u.num;
 163
 164         attr=attr_search(attrs, NULL, attr_enable_expression);
 165         if (attr) {
 166                 item->enable_cs = command_saved_new(attr->u.str, item->navit, NULL);
 167         }
 168
 169         attr = attr_search(attrs, NULL, attr_w);
 170         if (attr) {
 171                 if (attr->u.num > ATTR_REL_MAXABS) {
 172                         item->rel_w = attr->u.num - ATTR_REL_RELSHIFT;
 173                 } else {
 174                         item->rel_w = 0;
 175                         item->w = attr->u.num;
 176                 }
 177         }
 178
 179         attr = attr_search(attrs, NULL, attr_h);
 180         if (attr) {
 181                 if (attr->u.num > ATTR_REL_MAXABS) {
 182                         item->rel_h = attr->u.num - ATTR_REL_RELSHIFT;
 183                 } else {
 184                         item->rel_h = 0;
 185                         item->h = attr->u.num;
 186                 }
 187         }
 188
 189         attr = attr_search(attrs, NULL, attr_x);
 190         if (attr) {
 191                 if (attr->u.num > ATTR_REL_MAXABS) {
 192                         item->rel_x = attr->u.num - ATTR_REL_RELSHIFT;
 193                 } else {
 194                         item->rel_x = 0;
 195                         item->p.x = attr->u.num;
 196                 }
 197         }
 198
 199         attr = attr_search(attrs, NULL, attr_y);
 200         if (attr) {
 201                 if (attr->u.num > ATTR_REL_MAXABS) {
 202                         item->rel_y = attr->u.num - ATTR_REL_RELSHIFT;
 203                 } else {
 204                         item->rel_y = 0;
 205                         item->p.y = attr->u.num;
 206                 }
 207         }
 208
 209         attr = attr_search(attrs, NULL, attr_font_size);
 210         if (attr)
 211                 item->font_size = attr->u.num;
 212
 213         attr=attr_search(attrs, NULL, attr_background_color);
 214         if (attr)
 215                 item->color_bg=*attr->u.color;
 216         attr = attr_search(attrs, NULL, attr_command);
 217         if (attr)
 218                 item->command = g_strdup(attr->u.str);
 219         attr=attr_search(attrs, NULL, attr_text_color);
 220         if (attr)
 221                 item->text_color=*attr->u.color;
 222         attr=attr_search(attrs, NULL, attr_flags);
 223         if (attr)
 224                 item->attr_flags=attr->u.num;
 225 }
 226
 227 void
 228 osd_std_config(struct osd_item *item, struct navit *navit)
 229 {
 230         struct attr attr;
 231         dbg(1,"enter\n");
 232         if (item->enable_cs) {
 233                 item->reconfig_cb = callback_new_1(callback_cast(osd_std_reconfigure), item);
 234                 command_saved_set_cb(item->enable_cs, item->reconfig_cb);
 235
 236                 if (!command_saved_error(item->enable_cs)) {
 237                         item->configured = !! command_saved_get_int(item->enable_cs);
 238                 } else {
 239                         dbg(0, "Error in saved command: %i.\n", command_saved_error(item->enable_cs));
 240                 }
 241         } else {
 242                 if (!navit_get_attr(navit, attr_osd_configuration, &attr, NULL))
 243                         attr.u.num=-1;
 244                 item->configured = !!(attr.u.num & item->osd_configuration);
 245         }
 246         graphics_overlay_disable(item->gr, !item->configured);
 247 }
 248
 249 void
 250 osd_set_std_graphic(struct navit *nav, struct osd_item *item, struct osd_priv *priv)
 251 {
 252         struct graphics *navit_gr;
 253
 254         navit_gr = navit_get_graphics(nav);
 255         item->gr = graphics_overlay_new(navit_gr, &item->p, item->w, item->h, 65535, 1);
 256
 257         item->graphic_bg = graphics_gc_new(item->gr);
 258         graphics_gc_set_foreground(item->graphic_bg, &item->color_bg);
 259         graphics_background_gc(item->gr, item->graphic_bg);
 260
 261         item->graphic_fg_white = graphics_gc_new(item->gr);
 262         graphics_gc_set_foreground(item->graphic_fg_white, &item->color_white);
 263
 264         if (item->flags & 2) {
 265                 item->font = graphics_font_new(item->gr, item->font_size, 1);
 266                 item->graphic_fg_text = graphics_gc_new(item->gr);
 267                 graphics_gc_set_foreground(item->graphic_fg_text, &item->text_color);
 268         }
 269
 270         item->cb = callback_new_attr_2(callback_cast(osd_std_config), attr_osd_configuration, item, nav);
 271         navit_add_callback(nav, item->cb);
 272
 273         item->resize_cb = callback_new_attr_2(callback_cast(osd_std_calculate_sizes), attr_resize, item, priv);
 274         graphics_add_callback(navit_gr, item->resize_cb);
 275
 276         osd_std_config(item, nav);
 277 }
 278
 279 void
 280 osd_std_draw(struct osd_item *item)
 281 {
 282         struct point p[2];
 283         int flags=item->attr_flags;
 284
 285         graphics_draw_mode(item->gr, draw_mode_begin);
 286         p[0].x=0;
 287         p[0].y=0;
 288         graphics_draw_rectangle(item->gr, item->graphic_bg, p, item->w, item->h);
 289         p[1].x=item->w-1;
 290         p[1].y=0;
 291         if (flags & 1)
 292                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 293         p[0].x=item->w-1;
 294         p[0].y=item->h-1;
 295         if (flags & 2)
 296                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 297         p[1].x=0;
 298         p[1].y=item->h-1;
 299         if (flags & 4)
 300                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 301         p[0].x=0;
 302         p[0].y=0;
 303         if (flags & 8)
 304                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 305 }