// for temporary storage of sign elements
struct element_info {
- element_info(SGMaterial *m, SGMaterialGlyph *g) : material(m), glyph(g) {
- scale = m->get_xsize() / (m->get_ysize() < 0.001 ? 1.0 : m->get_ysize());
+ element_info(SGMaterial *m, SGMaterialGlyph *g, double h, bool l)
+ : material(m), glyph(g), height(h), lighted(l)
+ {
+ scale = h * m->get_xsize()
+ / (m->get_ysize() < 0.001 ? 1.0 : m->get_ysize());
}
SGMaterial *material;
SGMaterialGlyph *glyph;
+ double height;
double scale;
+ bool lighted;
};
-// translation table for 'command' to glyph name
+// standard panel height sizes
+const double HT[5] = {0.460, 0.610, 0.760, 1.220, 0.760};
+
+
+// translation table for "command" to "glyph name"
struct pair {
const char *keyword;
const char *glyph_name;
} cmds[] = {
- {"l", "left"},
- {"lu", "up-left"},
- {"ld", "down-left"},
- {"r", "right"},
- {"ru", "up-right"},
- {"rd", "down-right"},
- {"u", "up"},
- {"ul", "up-left"},
- {"ur", "up-right"},
- {"d", "down"},
- {"dl", "down-left"},
- {"dr", "down-right"},
- {"no-exit", "no-exit"},
+ {"@u", "up"},
+ {"@d", "down"},
+ {"@l", "left"},
+ {"@lu", "left-up"},
+ {"@ul", "left-up"},
+ {"@ld", "left-down"},
+ {"@dl", "left-down"},
+ {"@r", "right"},
+ {"@ru", "right-up"},
+ {"@ur", "right-up"},
+ {"@rd", "right-down"},
+ {"@dr", "right-down"},
{0, 0},
};
ssgBranch *sgMakeTaxiSign( SGMaterialLib *matlib,
const string path, const string content )
{
- const double sign_height = 1.0; // meter TODO make configurable
+ double sign_height = 1.0; // meter
+ bool lighted = true;
vector<element_info *> elements;
+ element_info *close = 0;
double total_width = 0.0;
bool cmd = false;
- char *newmat = "YellowSign";
+ char *newmat = "BlackSign";
+ int size = -1;
+ char oldtype = 0, newtype = 0;
ssgBranch *object = new ssgBranch();
object->setName((char *)content.c_str());
SGMaterial *material = matlib->find(newmat);
+ // Part I: parse & measure
for (const char *s = content.data(); *s; s++) {
string name;
const char *newmat = 0;
SG_LOG(SG_TERRAIN, SG_ALERT, TAXI "unexpected { in sign contents");
cmd = true;
continue;
+
} else if (*s == '}') {
if (!cmd)
SG_LOG(SG_TERRAIN, SG_ALERT, TAXI "unexpected } in sign contents");
cmd = false;
continue;
- } else if (cmd) {
+
+ } else if (!cmd) {
+ name = *s;
+
+ } else {
if (*s == ',')
continue;
- else if (*s == 'Y')
- newmat = "YellowSign";
- else if (*s == 'R')
- newmat = "RedSign";
- else if (*s == 'L')
- newmat = "FramedSign";
- else if (*s == 'B')
- newmat = "BlackSign";
- else {
- // find longest match of cmds[]
- int maxlen = 0, len;
- for (int i = 0; cmds[i].keyword; i++) {
- len = strlen(cmds[i].keyword);
- if (!strncmp(s, cmds[i].keyword, len)) {
- maxlen = len;
- name = cmds[i].glyph_name;
+
+ string value;
+ for (; *s; s++) {
+ name += *s;
+ if (s[1] == ',' || s[1] == '}' || s[1] == '=')
+ break;
+ }
+ if (!*s) {
+ SG_LOG(SG_TERRAIN, SG_ALERT, TAXI "unclosed { in sign contents");
+ } else if (s[1] == '=') {
+ for (s += 2; *s; s++) {
+ value += *s;
+ if (s[1] == ',' || s[1] == '}')
+ break;
+ }
+ if (!*s)
+ SG_LOG(SG_TERRAIN, SG_ALERT, TAXI "unclosed { in sign contents");
+ }
+
+ if (name == "@size") {
+ sign_height = strtod(value.data(), 0);
+ continue;
+ }
+
+ if (name == "@light") {
+ lighted = (value != "0" && value != "no" && value != "off" && value != "false");
+ continue;
+ }
+
+ if (name == "@material")
+ newmat = value.data();
+ else if (name.size() == 2 || name.size() == 3) {
+ if (name.size() == 3 && name[2] >= '1' && name[2] <= '5') {
+ size = name[2] - '1';
+ name = name.substr(0, 2);
+ }
+
+ if (name == "@Y") {
+ if (size < 3) {
+ sign_height = HT[size < 0 ? 2 : size];
+ newmat = "YellowSign";
+ newtype = 'Y';
+ }
+ } else if (name == "@R") {
+ if (size < 3) {
+ sign_height = HT[size < 0 ? 2 : size];
+ newmat = "RedSign";
+ newtype = 'R';
+ }
+ } else if (name == "@L") {
+ if (size < 3) {
+ sign_height = HT[size < 0 ? 2 : size];
+ newmat = "FramedSign";
+ newtype = 'L';
+ }
+ } else if (name == "@B") {
+ if (size < 0 || size == 3 || size == 4) {
+ sign_height = HT[size < 0 ? 3 : size];
+ newmat = "BlackSign";
+ newtype = 'B';
}
}
- if (maxlen)
- s += maxlen - 1;
}
- if (s[1] != ',' && s[1] != '}')
- SG_LOG(SG_TERRAIN, SG_ALERT, TAXI "garbage after command `" << s << '\'');
if (newmat) {
material = matlib->find(newmat);
continue;
}
- if (name.empty()) {
- SG_LOG(SG_TERRAIN, SG_ALERT, TAXI "unknown command `" << s << '\'');
+ for (int i = 0; cmds[i].keyword; i++) {
+ if (name == cmds[i].keyword) {
+ name = cmds[i].glyph_name;
+ break;
+ }
+ }
+
+ if (name[0] == '@') {
+ SG_LOG(SG_TERRAIN, SG_ALERT, TAXI "ignoring unknown command `" << name << '\'');
continue;
}
- } else
- name = *s;
+ }
if (!material) {
SG_LOG( SG_TERRAIN, SG_ALERT, TAXI "material doesn't exit");
SGMaterialGlyph *glyph = material->get_glyph(name);
if (!glyph) {
- SG_LOG( SG_TERRAIN, SG_ALERT, TAXI "unsupported character `" << *s << '\'');
+ SG_LOG( SG_TERRAIN, SG_ALERT, TAXI "unsupported glyph `" << *s << '\'');
continue;
}
- element_info *e = new element_info(material, glyph);
+ // in managed mode push frame stop and frame start first
+ element_info *e;
+ if (newtype && newtype != oldtype) {
+ if (close) {
+ elements.push_back(close);
+ total_width += close->glyph->get_width() * close->scale;
+ close = 0;
+ }
+ oldtype = newtype;
+ SGMaterialGlyph *g = material->get_glyph("stop-frame");
+ if (g)
+ close = new element_info(material, g, sign_height, lighted);
+ g = material->get_glyph("start-frame");
+ if (g) {
+ e = new element_info(material, g, sign_height, lighted);
+ elements.push_back(e);
+ total_width += e->glyph->get_width() * e->scale;
+ }
+ }
+ // now the actually requested glyph
+ e = new element_info(material, glyph, sign_height, lighted);
elements.push_back(e);
- total_width += glyph->get_width() * e->scale;
+ total_width += e->glyph->get_width() * e->scale;
}
+ // in managed mode close frame
+ if (close) {
+ elements.push_back(close);
+ total_width += close->glyph->get_width() * close->scale;
+ close = 0;
+ }
+
+
+ // Part II: typeset
double hpos = -total_width / 2;
sgVec3 normal;
element_info *element = elements[i];
double xoffset = element->glyph->get_left();
+ double height = element->height;
double width = element->glyph->get_width();
double abswidth = width * element->scale;
ssgVertexArray *vl = new ssgVertexArray(4);
vl->add(hpos, 0, 0);
vl->add(hpos + abswidth, 0, 0);
- vl->add(hpos, 0, sign_height);
- vl->add(hpos + abswidth, 0, sign_height);
+ vl->add(hpos, 0, height);
+ vl->add(hpos + abswidth, 0, height);
// texture coordinates
ssgTexCoordArray *tl = new ssgTexCoordArray(4);
ssgLeaf *leaf = new ssgVtxTable(GL_TRIANGLE_STRIP, vl, nl, tl, cl);
ssgSimpleState *state = element->material->get_state();
- //if (!lighted)
- // state->setMaterial(GL_EMISSION, 0, 0, 0, 1);
+ if (!element->lighted) {
+ // FIXME: clone state for unlighted elements only once per material
+ state = (ssgSimpleState *)state->clone(SSG_CLONE_STATE);
+ state->setMaterial(GL_EMISSION, 0.3, 0.3, 0.3, 1);
+ }
leaf->setState(state);
object->addKid(leaf);
projects / simgear.git / commitdiff