/* this makes sure we can extend for non-cyclic.
*
* returns OK: 1/0
*/
static bool where_on_path_deform(
Object *ob, float ctime, float vec[4], float dir[3], float quat[4], float *radius)
{
BevList *bl;
float ctime1;
int cycl = 0;
/* test for cyclic */
bl = ob->runtime.curve_cache->bev.first;
if (!bl->nr) {
return false;
}
if (bl->poly > -1) {
cycl = 1;
}
if (cycl == 0) {
ctime1 = CLAMPIS(ctime, 0.0f, 1.0f);
}
else {
ctime1 = ctime;
}
/* vec needs 4 items */
if (where_on_path(ob, ctime1, vec, dir, quat, radius, NULL)) {
if (cycl == 0) {
Path *path = ob->runtime.curve_cache->path;
float dvec[3];
if (ctime < 0.0f) {
sub_v3_v3v3(dvec, path->data[1].vec, path->data[0].vec);
mul_v3_fl(dvec, ctime * (float)path->len);
add_v3_v3(vec, dvec);
if (quat) {
copy_qt_qt(quat, path->data[0].quat);
}
if (radius) {
*radius = path->data[0].radius;
}
}
else if (ctime > 1.0f) {
sub_v3_v3v3(dvec, path->data[path->len - 1].vec, path->data[path->len - 2].vec);
mul_v3_fl(dvec, (ctime - 1.0f) * (float)path->len);
add_v3_v3(vec, dvec);
if (quat) {
copy_qt_qt(quat, path->data[path->len - 1].quat);
}
if (radius) {
*radius = path->data[path->len - 1].radius;
}
/* weight - not used but could be added */
}
}
return true;
}
return false;
}
/* this makes sure we can extend for non-cyclic. *vec needs 4 items! */
static int where_on_path_deform(Object *ob, float ctime, float *vec, float *dir, float *quat, float *radius) /* returns OK */
{
Curve *cu= ob->data;
BevList *bl;
float ctime1;
int cycl=0;
/* test for cyclic */
bl= cu->bev.first;
if (!bl->nr) return 0;
if(bl && bl->poly> -1) cycl= 1;
if(cycl==0) {
ctime1= CLAMPIS(ctime, 0.0f, 1.0f);
}
else ctime1= ctime;
/* vec needs 4 items */
if(where_on_path(ob, ctime1, vec, dir, quat, radius, NULL)) {
if(cycl==0) {
Path *path= cu->path;
float dvec[3];
if(ctime < 0.0f) {
sub_v3_v3v3(dvec, path->data[1].vec, path->data[0].vec);
mul_v3_fl(dvec, ctime*(float)path->len);
add_v3_v3(vec, dvec);
if(quat) copy_qt_qt(quat, path->data[0].quat);
if(radius) *radius= path->data[0].radius;
}
else if(ctime > 1.0f) {
sub_v3_v3v3(dvec, path->data[path->len-1].vec, path->data[path->len-2].vec);
mul_v3_fl(dvec, (ctime-1.0f)*(float)path->len);
add_v3_v3(vec, dvec);
if(quat) copy_qt_qt(quat, path->data[path->len-1].quat);
if(radius) *radius= path->data[path->len-1].radius;
/* weight - not used but could be added */
}
}
return 1;
}
return 0;
}
static void precalculate_effector(EffectorCache *eff)
{
unsigned int cfra = (unsigned int)(eff->scene->r.cfra >= 0 ? eff->scene->r.cfra : -eff->scene->r.cfra);
if (!eff->pd->rng)
eff->pd->rng = BLI_rng_new(eff->pd->seed + cfra);
else
BLI_rng_srandom(eff->pd->rng, eff->pd->seed + cfra);
if (eff->pd->forcefield == PFIELD_GUIDE && eff->ob->type==OB_CURVE) {
Curve *cu= eff->ob->data;
if (cu->flag & CU_PATH) {
if (eff->ob->curve_cache == NULL || eff->ob->curve_cache->path==NULL || eff->ob->curve_cache->path->data==NULL)
BKE_displist_make_curveTypes(eff->scene, eff->ob, 0);
if (eff->ob->curve_cache->path && eff->ob->curve_cache->path->data) {
where_on_path(eff->ob, 0.0, eff->guide_loc, eff->guide_dir, NULL, &eff->guide_radius, NULL);
mul_m4_v3(eff->ob->obmat, eff->guide_loc);
mul_mat3_m4_v3(eff->ob->obmat, eff->guide_dir);
}
}
}
else if (eff->pd->shape == PFIELD_SHAPE_SURFACE) {
eff->surmd = (SurfaceModifierData *)modifiers_findByType( eff->ob, eModifierType_Surface );
if (eff->ob->type == OB_CURVE)
eff->flag |= PE_USE_NORMAL_DATA;
}
else if (eff->psys)
psys_update_particle_tree(eff->psys, eff->scene->r.cfra);
/* Store object velocity */
if (eff->ob) {
float old_vel[3];
BKE_object_where_is_calc_time(eff->scene, eff->ob, cfra - 1.0f);
copy_v3_v3(old_vel, eff->ob->obmat[3]);
BKE_object_where_is_calc_time(eff->scene, eff->ob, cfra);
sub_v3_v3v3(eff->velocity, eff->ob->obmat[3], old_vel);
}
}
/* Evaluate spline IK for a given bone */
static void splineik_evaluate_bone(tSplineIK_Tree *tree, Scene *scene, Object *ob, bPoseChannel *pchan,
int index, float ctime)
{
bSplineIKConstraint *ikData = tree->ikData;
float poseHead[3], poseTail[3], poseMat[4][4];
float splineVec[3], scaleFac, radius = 1.0f;
/* firstly, calculate the bone matrix the standard way, since this is needed for roll control */
BKE_pose_where_is_bone(scene, ob, pchan, ctime, 1);
copy_v3_v3(poseHead, pchan->pose_head);
copy_v3_v3(poseTail, pchan->pose_tail);
/* step 1: determine the positions for the endpoints of the bone */
{
float vec[4], dir[3], rad;
float tailBlendFac = 1.0f;
/* determine if the bone should still be affected by SplineIK */
if (tree->points[index + 1] >= 1.0f) {
/* spline doesn't affect the bone anymore, so done... */
pchan->flag |= POSE_DONE;
return;
}
else if ((tree->points[index] >= 1.0f) && (tree->points[index + 1] < 1.0f)) {
/* blending factor depends on the amount of the bone still left on the chain */
tailBlendFac = (1.0f - tree->points[index + 1]) / (tree->points[index] - tree->points[index + 1]);
}
/* tail endpoint */
if (where_on_path(ikData->tar, tree->points[index], vec, dir, NULL, &rad, NULL)) {
/* apply curve's object-mode transforms to the position
* unless the option to allow curve to be positioned elsewhere is activated (i.e. no root)
*/
if ((ikData->flag & CONSTRAINT_SPLINEIK_NO_ROOT) == 0)
mul_m4_v3(ikData->tar->obmat, vec);
/* convert the position to pose-space, then store it */
mul_m4_v3(ob->imat, vec);
interp_v3_v3v3(poseTail, pchan->pose_tail, vec, tailBlendFac);
/* set the new radius */
radius = rad;
}
/* head endpoint */
if (where_on_path(ikData->tar, tree->points[index + 1], vec, dir, NULL, &rad, NULL)) {
/* apply curve's object-mode transforms to the position
* unless the option to allow curve to be positioned elsewhere is activated (i.e. no root)
*/
if ((ikData->flag & CONSTRAINT_SPLINEIK_NO_ROOT) == 0)
mul_m4_v3(ikData->tar->obmat, vec);
/* store the position, and convert it to pose space */
mul_m4_v3(ob->imat, vec);
copy_v3_v3(poseHead, vec);
/* set the new radius (it should be the average value) */
radius = (radius + rad) / 2;
}
}
/* step 2: determine the implied transform from these endpoints
* - splineVec: the vector direction that the spline applies on the bone
* - scaleFac: the factor that the bone length is scaled by to get the desired amount
*/
sub_v3_v3v3(splineVec, poseTail, poseHead);
scaleFac = len_v3(splineVec) / pchan->bone->length;
/* step 3: compute the shortest rotation needed to map from the bone rotation to the current axis
* - this uses the same method as is used for the Damped Track Constraint (see the code there for details)
*/
{
float dmat[3][3], rmat[3][3], tmat[3][3];
float raxis[3], rangle;
/* compute the raw rotation matrix from the bone's current matrix by extracting only the
* orientation-relevant axes, and normalizing them
*/
copy_v3_v3(rmat[0], pchan->pose_mat[0]);
copy_v3_v3(rmat[1], pchan->pose_mat[1]);
copy_v3_v3(rmat[2], pchan->pose_mat[2]);
normalize_m3(rmat);
/* also, normalize the orientation imposed by the bone, now that we've extracted the scale factor */
normalize_v3(splineVec);
/* calculate smallest axis-angle rotation necessary for getting from the
* current orientation of the bone, to the spline-imposed direction
*/
cross_v3_v3v3(raxis, rmat[1], splineVec);
rangle = dot_v3v3(rmat[1], splineVec);
CLAMP(rangle, -1.0f, 1.0f);
rangle = acosf(rangle);
/* multiply the magnitude of the angle by the influence of the constraint to
* control the influence of the SplineIK effect
*/
rangle *= tree->con->enforce;
/* construct rotation matrix from the axis-angle rotation found above
* - this call takes care to make sure that the axis provided is a unit vector first
*/
axis_angle_to_mat3(dmat, raxis, rangle);
/* combine these rotations so that the y-axis of the bone is now aligned as the spline dictates,
* while still maintaining roll control from the existing bone animation
*/
mul_m3_m3m3(tmat, dmat, rmat); /* m1, m3, m2 */
normalize_m3(tmat); /* attempt to reduce shearing, though I doubt this'll really help too much now... */
copy_m4_m3(poseMat, tmat);
}
/* step 4: set the scaling factors for the axes */
{
/* only multiply the y-axis by the scaling factor to get nice volume-preservation */
mul_v3_fl(poseMat[1], scaleFac);
/* set the scaling factors of the x and z axes from... */
switch (ikData->xzScaleMode) {
case CONSTRAINT_SPLINEIK_XZS_ORIGINAL:
{
/* original scales get used */
float scale;
/* x-axis scale */
scale = len_v3(pchan->pose_mat[0]);
mul_v3_fl(poseMat[0], scale);
/* z-axis scale */
scale = len_v3(pchan->pose_mat[2]);
mul_v3_fl(poseMat[2], scale);
break;
}
case CONSTRAINT_SPLINEIK_XZS_INVERSE:
{
/* old 'volume preservation' method using the inverse scale */
float scale;
/* calculate volume preservation factor which is
* basically the inverse of the y-scaling factor
*/
if (fabsf(scaleFac) != 0.0f) {
scale = 1.0f / fabsf(scaleFac);
/* we need to clamp this within sensible values */
/* NOTE: these should be fine for now, but should get sanitised in future */
CLAMP(scale, 0.0001f, 100000.0f);
}
else
scale = 1.0f;
/* apply the scaling */
mul_v3_fl(poseMat[0], scale);
mul_v3_fl(poseMat[2], scale);
break;
}
case CONSTRAINT_SPLINEIK_XZS_VOLUMETRIC:
{
/* improved volume preservation based on the Stretch To constraint */
float final_scale;
/* as the basis for volume preservation, we use the inverse scale factor... */
if (fabsf(scaleFac) != 0.0f) {
/* NOTE: The method here is taken wholesale from the Stretch To constraint */
float bulge = powf(1.0f / fabsf(scaleFac), ikData->bulge);
if (bulge > 1.0f) {
if (ikData->flag & CONSTRAINT_SPLINEIK_USE_BULGE_MAX) {
float bulge_max = max_ff(ikData->bulge_max, 1.0f);
float hard = min_ff(bulge, bulge_max);
float range = bulge_max - 1.0f;
float scale = (range > 0.0f) ? 1.0f / range : 0.0f;
float soft = 1.0f + range * atanf((bulge - 1.0f) * scale) / (float)M_PI_2;
bulge = interpf(soft, hard, ikData->bulge_smooth);
}
}
if (bulge < 1.0f) {
if (ikData->flag & CONSTRAINT_SPLINEIK_USE_BULGE_MIN) {
float bulge_min = CLAMPIS(ikData->bulge_min, 0.0f, 1.0f);
float hard = max_ff(bulge, bulge_min);
float range = 1.0f - bulge_min;
float scale = (range > 0.0f) ? 1.0f / range : 0.0f;
float soft = 1.0f - range * atanf((1.0f - bulge) * scale) / (float)M_PI_2;
bulge = interpf(soft, hard, ikData->bulge_smooth);
}
}
/* compute scale factor for xz axes from this value */
final_scale = sqrtf(bulge);
}
else {
/* no scaling, so scale factor is simple */
final_scale = 1.0f;
}
/* apply the scaling (assuming normalised scale) */
mul_v3_fl(poseMat[0], final_scale);
mul_v3_fl(poseMat[2], final_scale);
break;
}
}
/* finally, multiply the x and z scaling by the radius of the curve too,
* to allow automatic scales to get tweaked still
*/
if ((ikData->flag & CONSTRAINT_SPLINEIK_NO_CURVERAD) == 0) {
mul_v3_fl(poseMat[0], radius);
mul_v3_fl(poseMat[2], radius);
}
}
/* step 5: set the location of the bone in the matrix */
if (ikData->flag & CONSTRAINT_SPLINEIK_NO_ROOT) {
/* when the 'no-root' option is affected, the chain can retain
* the shape but be moved elsewhere
*/
copy_v3_v3(poseHead, pchan->pose_head);
}
else if (tree->con->enforce < 1.0f) {
/* when the influence is too low
* - blend the positions for the 'root' bone
* - stick to the parent for any other
*/
if (pchan->parent) {
copy_v3_v3(poseHead, pchan->pose_head);
}
else {
/* FIXME: this introduces popping artifacts when we reach 0.0 */
interp_v3_v3v3(poseHead, pchan->pose_head, poseHead, tree->con->enforce);
}
}
copy_v3_v3(poseMat[3], poseHead);
/* finally, store the new transform */
copy_m4_m4(pchan->pose_mat, poseMat);
copy_v3_v3(pchan->pose_head, poseHead);
/* recalculate tail, as it's now outdated after the head gets adjusted above! */
BKE_pose_where_is_bone_tail(pchan);
/* done! */
pchan->flag |= POSE_DONE;
}
/* added "sizecorr" here, to allow armatures to be scaled and still have striding.
Only works for uniform scaling. In general I'd advise against scaling armatures ever though! (ton)
*/
static float stridechannel_frame(Object *ob, float sizecorr, bActionStrip *strip, Path *path, float pathdist, float *stride_offset)
{
bAction *act= strip->act;
const char *name= strip->stridechannel;
bActionChannel *achan= get_action_channel(act, name);
int stride_axis= strip->stride_axis;
if(achan && achan->ipo) {
IpoCurve *icu= NULL;
float minx=0.0f, maxx=0.0f, miny=0.0f, maxy=0.0f;
int foundvert= 0;
if(stride_axis==0) stride_axis= AC_LOC_X;
else if(stride_axis==1) stride_axis= AC_LOC_Y;
else stride_axis= AC_LOC_Z;
/* calculate the min/max */
for (icu=achan->ipo->curve.first; icu; icu=icu->next) {
if(icu->adrcode==stride_axis) {
if(icu->totvert>1) {
foundvert= 1;
minx= icu->bezt[0].vec[1][0];
maxx= icu->bezt[icu->totvert-1].vec[1][0];
miny= icu->bezt[0].vec[1][1];
maxy= icu->bezt[icu->totvert-1].vec[1][1];
}
break;
}
}
if(foundvert && miny!=maxy) {
float stridelen= sizecorr*fabs(maxy-miny), striptime;
float actiondist, pdist, pdistNewNormalized, offs;
float vec1[4], vec2[4], dir[3];
/* internal cycling, actoffs is in frames */
offs= stridelen*strip->actoffs/(maxx-minx);
/* amount path moves object */
pdist = (float)fmod (pathdist+offs, stridelen);
striptime= pdist/stridelen;
/* amount stride bone moves */
actiondist= sizecorr*eval_icu(icu, minx + striptime*(maxx-minx)) - miny;
pdist = fabs(actiondist) - pdist;
pdistNewNormalized = (pathdist+pdist)/path->totdist;
/* now we need to go pdist further (or less) on cu path */
where_on_path(ob, (pathdist)/path->totdist, vec1, dir); /* vec needs size 4 */
if (pdistNewNormalized <= 1) {
// search for correction in positive path-direction
where_on_path(ob, pdistNewNormalized, vec2, dir); /* vec needs size 4 */
sub_v3_v3v3(stride_offset, vec2, vec1);
}
else {
// we reached the end of the path, search backwards instead
where_on_path(ob, (pathdist-pdist)/path->totdist, vec2, dir); /* vec needs size 4 */
sub_v3_v3v3(stride_offset, vec1, vec2);
}
mul_mat3_m4_v3(ob->obmat, stride_offset);
return striptime;
}
}
return 0.0f;
}
struct chartrans *BKE_text_to_curve(Main *bmain, Scene *scene, Object *ob, int mode)
{
VFont *vfont, *oldvfont;
VFontData *vfd= NULL;
Curve *cu;
CharInfo *info = NULL, *custrinfo;
TextBox *tb;
VChar *che;
struct chartrans *chartransdata=NULL, *ct;
float *f, xof, yof, xtrax, linedist, *linedata, *linedata2, *linedata3, *linedata4;
float twidth, maxlen= 0;
int i, slen, j;
int curbox;
int selstart, selend;
int utf8len;
short cnr=0, lnr=0, wsnr= 0;
wchar_t *mem, *tmp, ascii;
/* renark: do calculations including the trailing '\0' of a string
* because the cursor can be at that location */
if (ob->type!=OB_FONT) return NULL;
// Set font data
cu= (Curve *) ob->data;
vfont= cu->vfont;
if (cu->str == NULL) return NULL;
if (vfont == NULL) return NULL;
// Create unicode string
utf8len = BLI_strlen_utf8(cu->str);
mem = MEM_callocN(((utf8len + 1) * sizeof(wchar_t)), "convertedmem");
BLI_strncpy_wchar_from_utf8(mem, cu->str, utf8len + 1);
// Count the wchar_t string length
slen = wcslen(mem);
if (cu->ulheight == 0.0f)
cu->ulheight = 0.05f;
if (cu->strinfo==NULL) /* old file */
cu->strinfo = MEM_callocN((slen+4) * sizeof(CharInfo), "strinfo compat");
custrinfo= cu->strinfo;
if (cu->editfont)
custrinfo= cu->editfont->textbufinfo;
if (cu->tb==NULL)
cu->tb= MEM_callocN(MAXTEXTBOX*sizeof(TextBox), "TextBox compat");
vfd= vfont_get_data(bmain, vfont);
/* The VFont Data can not be found */
if (!vfd) {
if (mem)
MEM_freeN(mem);
return NULL;
}
/* calc offset and rotation of each char */
ct = chartransdata =
(struct chartrans*)MEM_callocN((slen+1)* sizeof(struct chartrans),"buildtext");
/* We assume the worst case: 1 character per line (is freed at end anyway) */
linedata= MEM_mallocN(sizeof(float)*(slen*2 + 1),"buildtext2");
linedata2= MEM_mallocN(sizeof(float)*(slen*2 + 1),"buildtext3");
linedata3= MEM_callocN(sizeof(float)*(slen*2 + 1),"buildtext4");
linedata4= MEM_callocN(sizeof(float)*(slen*2 + 1),"buildtext5");
linedist= cu->linedist;
xof= cu->xof + (cu->tb[0].x/cu->fsize);
yof= cu->yof + (cu->tb[0].y/cu->fsize);
xtrax= 0.5f*cu->spacing-0.5f;
oldvfont = NULL;
for (i=0; i<slen; i++) custrinfo[i].flag &= ~(CU_CHINFO_WRAP|CU_CHINFO_SMALLCAPS_CHECK);
if (cu->selboxes) MEM_freeN(cu->selboxes);
cu->selboxes = NULL;
if (BKE_font_getselection(ob, &selstart, &selend))
cu->selboxes = MEM_callocN((selend-selstart+1)*sizeof(SelBox), "font selboxes");
tb = &(cu->tb[0]);
curbox= 0;
for (i = 0 ; i<=slen ; i++) {
makebreak:
// Characters in the list
info = &(custrinfo[i]);
ascii = mem[i];
if (info->flag & CU_CHINFO_SMALLCAPS) {
ascii = towupper(ascii);
if (mem[i] != ascii) {
mem[i]= ascii;
info->flag |= CU_CHINFO_SMALLCAPS_CHECK;
}
}
vfont = which_vfont(cu, info);
if (vfont==NULL) break;
che= find_vfont_char(vfd, ascii);
/*
* The character wasn't in the current curve base so load it
* But if the font is FO_BUILTIN_NAME then do not try loading since
* whole font is in the memory already
*/
if (che == NULL && strcmp(vfont->name, FO_BUILTIN_NAME)) {
BLI_vfontchar_from_freetypefont(vfont, ascii);
}
/* Try getting the character again from the list */
che= find_vfont_char(vfd, ascii);
/* No VFont found */
if (vfont==NULL) {
if (mem)
MEM_freeN(mem);
MEM_freeN(chartransdata);
return NULL;
}
if (vfont != oldvfont) {
vfd= vfont_get_data(bmain, vfont);
oldvfont = vfont;
}
/* VFont Data for VFont couldn't be found */
if (!vfd) {
if (mem)
MEM_freeN(mem);
MEM_freeN(chartransdata);
return NULL;
}
twidth = char_width(cu, che, info);
// Calculate positions
if ((tb->w != 0.0f) && (ct->dobreak==0) && ((xof-(tb->x/cu->fsize)+twidth)*cu->fsize) > tb->w + cu->xof*cu->fsize) {
// fprintf(stderr, "linewidth exceeded: %c%c%c...\n", mem[i], mem[i+1], mem[i+2]);
for (j=i; j && (mem[j] != '\n') && (mem[j] != '\r') && (chartransdata[j].dobreak==0); j--) {
if (mem[j]==' ' || mem[j]=='-') {
ct -= (i-(j-1));
cnr -= (i-(j-1));
if (mem[j] == ' ') wsnr--;
if (mem[j] == '-') wsnr++;
i = j-1;
xof = ct->xof;
ct[1].dobreak = 1;
custrinfo[i+1].flag |= CU_CHINFO_WRAP;
goto makebreak;
}
if (chartransdata[j].dobreak) {
// fprintf(stderr, "word too long: %c%c%c...\n", mem[j], mem[j+1], mem[j+2]);
ct->dobreak= 1;
custrinfo[i+1].flag |= CU_CHINFO_WRAP;
ct -= 1;
cnr -= 1;
i--;
xof = ct->xof;
goto makebreak;
}
}
}
if (ascii== '\n' || ascii== '\r' || ascii==0 || ct->dobreak) {
ct->xof= xof;
ct->yof= yof;
ct->linenr= lnr;
ct->charnr= cnr;
yof-= linedist;
maxlen= MAX2(maxlen, (xof-tb->x/cu->fsize));
linedata[lnr]= xof-tb->x/cu->fsize;
linedata2[lnr]= cnr;
linedata3[lnr]= tb->w/cu->fsize;
linedata4[lnr]= wsnr;
if ( (tb->h != 0.0f) &&
((-(yof-(tb->y/cu->fsize))) > ((tb->h/cu->fsize)-(linedist*cu->fsize)) - cu->yof) &&
(cu->totbox > (curbox+1)) ) {
maxlen= 0;
tb++;
curbox++;
yof= cu->yof + tb->y/cu->fsize;
}
/* XXX, has been unused for years, need to check if this is useful, r4613 r5282 - campbell */
#if 0
if (ascii == '\n' || ascii == '\r')
xof = cu->xof;
else
xof= cu->xof + (tb->x/cu->fsize);
#else
xof= cu->xof + (tb->x/cu->fsize);
#endif
lnr++;
cnr= 0;
wsnr= 0;
}
else if (ascii==9) { /* TAB */
float tabfac;
ct->xof= xof;
ct->yof= yof;
ct->linenr= lnr;
ct->charnr= cnr++;
tabfac= (xof-cu->xof+0.01f);
tabfac= 2.0f*ceilf(tabfac/2.0f);
xof= cu->xof+tabfac;
}
else {
SelBox *sb= NULL;
float wsfac;
ct->xof= xof;
ct->yof= yof;
ct->linenr= lnr;
ct->charnr= cnr++;
if (cu->selboxes && (i>=selstart) && (i<=selend)) {
sb = &(cu->selboxes[i-selstart]);
sb->y = yof*cu->fsize-linedist*cu->fsize*0.1f;
sb->h = linedist*cu->fsize;
sb->w = xof*cu->fsize;
}
if (ascii==32) {
wsfac = cu->wordspace;
wsnr++;
}
else wsfac = 1.0f;
// Set the width of the character
twidth = char_width(cu, che, info);
xof += (twidth*wsfac*(1.0f+(info->kern/40.0f)) ) + xtrax;
if (sb)
sb->w = (xof*cu->fsize) - sb->w;
}
ct++;
}
cu->lines= 1;
ct= chartransdata;
tmp = mem;
for (i= 0; i<=slen; i++, tmp++, ct++) {
ascii = *tmp;
if (ascii== '\n' || ascii== '\r' || ct->dobreak) cu->lines++;
}
// linedata is now: width of line
// linedata2 is now: number of characters
// linedata3 is now: maxlen of that line
// linedata4 is now: number of whitespaces of line
if (cu->spacemode!=CU_LEFT) {
ct= chartransdata;
if (cu->spacemode==CU_RIGHT) {
for (i=0;i<lnr;i++) linedata[i]= linedata3[i]-linedata[i];
for (i=0; i<=slen; i++) {
ct->xof+= linedata[ct->linenr];
ct++;
}
}
else if (cu->spacemode==CU_MIDDLE) {
for (i=0;i<lnr;i++) linedata[i]= (linedata3[i]-linedata[i])/2;
for (i=0; i<=slen; i++) {
ct->xof+= linedata[ct->linenr];
ct++;
}
}
else if ((cu->spacemode==CU_FLUSH) &&
(cu->tb[0].w != 0.0f)) {
for (i=0;i<lnr;i++)
if (linedata2[i]>1)
linedata[i]= (linedata3[i]-linedata[i])/(linedata2[i]-1);
for (i=0; i<=slen; i++) {
for (j=i; (!ELEM3(mem[j], '\0', '\n', '\r')) && (chartransdata[j].dobreak == 0) && (j < slen); j++) {
/* do nothing */
}
// if ((mem[j]!='\r') && (mem[j]!='\n') && (mem[j])) {
ct->xof+= ct->charnr*linedata[ct->linenr];
// }
ct++;
}
}
else if ((cu->spacemode==CU_JUSTIFY) && (cu->tb[0].w != 0.0f)) {
float curofs= 0.0f;
for (i=0; i<=slen; i++) {
for (j=i; (mem[j]) && (mem[j]!='\n') &&
(mem[j]!='\r') && (chartransdata[j].dobreak==0) && (j<slen); j++);
if ((mem[j]!='\r') && (mem[j]!='\n') &&
((chartransdata[j].dobreak!=0))) {
if (mem[i]==' ') curofs += (linedata3[ct->linenr]-linedata[ct->linenr])/linedata4[ct->linenr];
ct->xof+= curofs;
}
if (mem[i]=='\n' || mem[i]=='\r' || chartransdata[i].dobreak) curofs= 0;
ct++;
}
}
}
/* TEXT ON CURVE */
/* Note: Only OB_CURVE objects could have a path */
if (cu->textoncurve && cu->textoncurve->type==OB_CURVE) {
Curve *cucu= cu->textoncurve->data;
int oldflag= cucu->flag;
cucu->flag |= (CU_PATH+CU_FOLLOW);
if (cucu->path==NULL) makeDispListCurveTypes(scene, cu->textoncurve, 0);
if (cucu->path) {
float distfac, imat[4][4], imat3[3][3], cmat[3][3];
float minx, maxx, miny, maxy;
float timeofs, sizefac;
invert_m4_m4(imat, ob->obmat);
copy_m3_m4(imat3, imat);
copy_m3_m4(cmat, cu->textoncurve->obmat);
mul_m3_m3m3(cmat, cmat, imat3);
sizefac= normalize_v3(cmat[0])/cu->fsize;
minx=miny= 1.0e20f;
maxx=maxy= -1.0e20f;
ct= chartransdata;
for (i=0; i<=slen; i++, ct++) {
if (minx>ct->xof) minx= ct->xof;
if (maxx<ct->xof) maxx= ct->xof;
if (miny>ct->yof) miny= ct->yof;
if (maxy<ct->yof) maxy= ct->yof;
}
/* we put the x-coordinaat exact at the curve, the y is rotated */
/* length correction */
distfac= sizefac*cucu->path->totdist/(maxx-minx);
timeofs= 0.0f;
if (distfac > 1.0f) {
/* path longer than text: spacemode involves */
distfac= 1.0f/distfac;
if (cu->spacemode==CU_RIGHT) {
timeofs= 1.0f-distfac;
}
else if (cu->spacemode==CU_MIDDLE) {
timeofs= (1.0f-distfac)/2.0f;
}
else if (cu->spacemode==CU_FLUSH) distfac= 1.0f;
}
else distfac= 1.0;
distfac/= (maxx-minx);
timeofs+= distfac*cu->xof; /* not cyclic */
ct= chartransdata;
for (i=0; i<=slen; i++, ct++) {
float ctime, dtime, vec[4], tvec[4], rotvec[3];
float si, co;
/* rotate around center character */
ascii = mem[i];
che= find_vfont_char(vfd, ascii);
twidth = char_width(cu, che, info);
dtime= distfac*0.5f*twidth;
ctime= timeofs + distfac*( ct->xof - minx);
CLAMP(ctime, 0.0f, 1.0f);
/* calc the right loc AND the right rot separately */
/* vec, tvec need 4 items */
where_on_path(cu->textoncurve, ctime, vec, tvec, NULL, NULL, NULL);
where_on_path(cu->textoncurve, ctime+dtime, tvec, rotvec, NULL, NULL, NULL);
mul_v3_fl(vec, sizefac);
ct->rot= (float)(M_PI-atan2(rotvec[1], rotvec[0]));
si= (float)sin(ct->rot);
co= (float)cos(ct->rot);
yof= ct->yof;
ct->xof= vec[0] + si*yof;
ct->yof= vec[1] + co*yof;
}
cucu->flag= oldflag;
}
}
if (cu->selboxes) {
ct= chartransdata;
for (i=0; i<=selend; i++, ct++) {
if (i>=selstart) {
cu->selboxes[i-selstart].x = ct->xof*cu->fsize;
cu->selboxes[i-selstart].y = ct->yof*cu->fsize;
}
}
}
if (mode==FO_CURSUP || mode==FO_CURSDOWN || mode==FO_PAGEUP || mode==FO_PAGEDOWN) {
/* 2: curs up
* 3: curs down */
ct= chartransdata+cu->pos;
if ((mode==FO_CURSUP || mode==FO_PAGEUP) && ct->linenr==0);
else if ((mode==FO_CURSDOWN || mode==FO_PAGEDOWN) && ct->linenr==lnr);
else {
switch(mode) {
case FO_CURSUP: lnr= ct->linenr-1; break;
case FO_CURSDOWN: lnr= ct->linenr+1; break;
case FO_PAGEUP: lnr= ct->linenr-10; break;
case FO_PAGEDOWN: lnr= ct->linenr+10; break;
}
cnr= ct->charnr;
/* seek for char with lnr en cnr */
cu->pos= 0;
ct= chartransdata;
for (i= 0; i<slen; i++) {
if (ct->linenr==lnr) {
if (ct->charnr==cnr) break;
if ( (ct+1)->charnr==0) break;
}
else if (ct->linenr>lnr) break;
cu->pos++;
ct++;
}
}
}
/* cursor first */
if (cu->editfont) {
float si, co;
ct= chartransdata+cu->pos;
si= (float)sin(ct->rot);
co= (float)cos(ct->rot);
f= cu->editfont->textcurs[0];
f[0]= cu->fsize*(-0.1f*co + ct->xof);
f[1]= cu->fsize*(0.1f*si + ct->yof);
f[2]= cu->fsize*(0.1f*co + ct->xof);
f[3]= cu->fsize*(-0.1f*si + ct->yof);
f[4]= cu->fsize*( 0.1f*co + 0.8f*si + ct->xof);
f[5]= cu->fsize*(-0.1f*si + 0.8f*co + ct->yof);
f[6]= cu->fsize*(-0.1f*co + 0.8f*si + ct->xof);
f[7]= cu->fsize*( 0.1f*si + 0.8f*co + ct->yof);
}
MEM_freeN(linedata);
MEM_freeN(linedata2);
MEM_freeN(linedata3);
MEM_freeN(linedata4);
if (mode == FO_SELCHANGE) {
MEM_freeN(chartransdata);
MEM_freeN(mem);
return NULL;
}
if (mode == FO_EDIT) {
/* make nurbdata */
freeNurblist(&cu->nurb);
ct= chartransdata;
if (cu->sepchar==0) {
for (i= 0; i<slen; i++) {
unsigned long cha = (uintptr_t) mem[i];
info = &(custrinfo[i]);
if (info->mat_nr > (ob->totcol)) {
/* printf("Error: Illegal material index (%d) in text object, setting to 0\n", info->mat_nr); */
info->mat_nr = 0;
}
// We do not want to see any character for \n or \r
if (cha != '\n' && cha != '\r')
buildchar(bmain, cu, cha, info, ct->xof, ct->yof, ct->rot, i);
if ((info->flag & CU_CHINFO_UNDERLINE) && (cu->textoncurve == NULL) && (cha != '\n') && (cha != '\r')) {
float ulwidth, uloverlap= 0.0f;
if ( (i<(slen-1)) && (mem[i+1] != '\n') && (mem[i+1] != '\r') &&
((mem[i+1] != ' ') || (custrinfo[i+1].flag & CU_CHINFO_UNDERLINE)) && ((custrinfo[i+1].flag & CU_CHINFO_WRAP)==0)
) {
uloverlap = xtrax + 0.1f;
}
// Find the character, the characters has to be in the memory already
// since character checking has been done earlier already.
che= find_vfont_char(vfd, cha);
twidth = char_width(cu, che, info);
ulwidth = cu->fsize * ((twidth* (1.0f+(info->kern/40.0f)))+uloverlap);
build_underline(cu, ct->xof*cu->fsize, ct->yof*cu->fsize + (cu->ulpos-0.05f)*cu->fsize,
ct->xof*cu->fsize + ulwidth,
ct->yof*cu->fsize + (cu->ulpos-0.05f)*cu->fsize - cu->ulheight*cu->fsize,
i, info->mat_nr);
}
ct++;
}
}
else {
int outta = 0;
for (i= 0; (i<slen) && (outta==0); i++) {
ascii = mem[i];
info = &(custrinfo[i]);
if (cu->sepchar == (i+1)) {
float vecyo[3];
vecyo[0]= ct->xof;
vecyo[1]= ct->yof;
vecyo[2]= 0.0f;
mem[0] = ascii;
mem[1] = 0;
custrinfo[0]= *info;
cu->pos = 1;
cu->len = 1;
mul_v3_m4v3(ob->loc, ob->obmat, vecyo);
outta = 1;
cu->sepchar = 0;
}
ct++;
}
}
}
if (mode==FO_DUPLI) {
MEM_freeN(mem);
return chartransdata;
}
if (mem)
MEM_freeN(mem);
MEM_freeN(chartransdata);
return NULL;
}