static void
rsvg_node_use_draw (RsvgNode * self, RsvgDrawingCtx * ctx, int dominate)
{
RsvgNodeUse *use = (RsvgNodeUse *) self;
RsvgNode *child;
RsvgState *state;
double affine[6];
double x, y, w, h;
x = _rsvg_css_normalize_length (&use->x, ctx, 'h');
y = _rsvg_css_normalize_length (&use->y, ctx, 'v');
w = _rsvg_css_normalize_length (&use->w, ctx, 'h');
h = _rsvg_css_normalize_length (&use->h, ctx, 'v');
rsvg_state_reinherit_top (ctx, self->state, dominate);
child = use->link;
/* If it can find nothing to draw... draw nothing */
if (!child)
return;
else if (rsvg_node_is_ancestor (child, self)) /* or, if we're <use>'ing ourself */
return;
state = rsvg_current_state (ctx);
if (strcmp (child->type->str, "symbol")) {
_rsvg_affine_translate (affine, x, y);
_rsvg_affine_multiply (state->affine, affine, state->affine);
rsvg_push_discrete_layer (ctx);
rsvg_state_push (ctx);
rsvg_node_draw (child, ctx, 1);
rsvg_state_pop (ctx);
rsvg_pop_discrete_layer (ctx);
} else {
RsvgNodeSymbol *symbol = (RsvgNodeSymbol *) child;
if (symbol->vbox.active) {
rsvg_preserve_aspect_ratio
(symbol->preserve_aspect_ratio, symbol->vbox.w, symbol->vbox.h, &w, &h, &x, &y);
_rsvg_affine_translate (affine, x, y);
_rsvg_affine_multiply (state->affine, affine, state->affine);
_rsvg_affine_scale (affine, w / symbol->vbox.w, h / symbol->vbox.h);
_rsvg_affine_multiply (state->affine, affine, state->affine);
_rsvg_affine_translate (affine, -symbol->vbox.x, -symbol->vbox.y);
_rsvg_affine_multiply (state->affine, affine, state->affine);
_rsvg_push_view_box (ctx, symbol->vbox.w, symbol->vbox.h);
rsvg_push_discrete_layer (ctx);
if (!state->overflow || (!state->has_overflow && child->state->overflow))
rsvg_add_clipping_rect (ctx, symbol->vbox.x, symbol->vbox.y,
symbol->vbox.w, symbol->vbox.h);
} else {
_rsvg_affine_translate (affine, x, y);
_rsvg_affine_multiply (state->affine, affine, state->affine);
rsvg_push_discrete_layer (ctx);
}
rsvg_state_push (ctx);
_rsvg_node_draw_children (child, ctx, 1);
rsvg_state_pop (ctx);
rsvg_pop_discrete_layer (ctx);
if (symbol->vbox.active)
_rsvg_pop_view_box (ctx);
}
}
static void
rsvg_node_svg_draw (RsvgNode * self, RsvgDrawingCtx * ctx, int dominate)
{
RsvgNodeSvg *sself;
RsvgState *state;
gdouble affine[6], affine_old[6], affine_new[6];
guint i;
double nx, ny, nw, nh;
sself = (RsvgNodeSvg *) self;
nx = _rsvg_css_normalize_length (&sself->x, ctx, 'h');
ny = _rsvg_css_normalize_length (&sself->y, ctx, 'v');
nw = _rsvg_css_normalize_length (&sself->w, ctx, 'h');
nh = _rsvg_css_normalize_length (&sself->h, ctx, 'v');
rsvg_state_reinherit_top (ctx, self->state, dominate);
state = rsvg_current_state (ctx);
for (i = 0; i < 6; i++)
affine_old[i] = state->affine[i];
if (sself->vbox.active) {
double x = nx, y = ny, w = nw, h = nh;
rsvg_preserve_aspect_ratio (sself->preserve_aspect_ratio,
sself->vbox.w, sself->vbox.h, &w, &h, &x, &y);
affine[0] = w / sself->vbox.w;
affine[1] = 0;
affine[2] = 0;
affine[3] = h / sself->vbox.h;
affine[4] = x - sself->vbox.x * w / sself->vbox.w;
affine[5] = y - sself->vbox.y * h / sself->vbox.h;
_rsvg_affine_multiply (state->affine, affine, state->affine);
_rsvg_push_view_box (ctx, sself->vbox.w, sself->vbox.h);
} else {
affine[0] = 1;
affine[1] = 0;
affine[2] = 0;
affine[3] = 1;
affine[4] = nx;
affine[5] = ny;
_rsvg_affine_multiply (state->affine, affine, state->affine);
_rsvg_push_view_box (ctx, nw, nh);
}
for (i = 0; i < 6; i++)
affine_new[i] = state->affine[i];
rsvg_push_discrete_layer (ctx);
/* Bounding box addition must be AFTER the discrete layer push,
which must be AFTER the transformation happens. */
if (!state->overflow && self->parent) {
for (i = 0; i < 6; i++)
state->affine[i] = affine_old[i];
rsvg_add_clipping_rect (ctx, nx, ny, nw, nh);
for (i = 0; i < 6; i++)
state->affine[i] = affine_new[i];
}
for (i = 0; i < self->children->len; i++) {
rsvg_state_push (ctx);
rsvg_node_draw (g_ptr_array_index (self->children, i), ctx, 0);
rsvg_state_pop (ctx);
}
rsvg_pop_discrete_layer (ctx);
_rsvg_pop_view_box (ctx);
}
void
rsvg_marker_render (RsvgMarker * self, gdouble x, gdouble y, gdouble orient, gdouble linewidth,
RsvgDrawingCtx * ctx)
{
cairo_matrix_t affine, taffine;
unsigned int i;
gdouble rotation;
RsvgState *state = rsvg_current_state (ctx);
cairo_matrix_init_translate (&taffine, x, y);
cairo_matrix_multiply (&affine, &taffine, &state->affine);
if (self->orientAuto)
rotation = orient;
else
rotation = self->orient * M_PI / 180.;
cairo_matrix_init_rotate (&taffine, rotation);
cairo_matrix_multiply (&affine, &taffine, &affine);
if (self->bbox) {
cairo_matrix_init_scale (&taffine, linewidth, linewidth);
cairo_matrix_multiply (&affine, &taffine, &affine);
}
if (self->vbox.active) {
double w, h, x, y;
w = _rsvg_css_normalize_length (&self->width, ctx, 'h');
h = _rsvg_css_normalize_length (&self->height, ctx, 'v');
x = 0;
y = 0;
rsvg_preserve_aspect_ratio (self->preserve_aspect_ratio,
self->vbox.rect.width,
self->vbox.rect.height,
&w, &h, &x, &y);
x = -self->vbox.rect.x * w / self->vbox.rect.width;
y = -self->vbox.rect.y * h / self->vbox.rect.height;
cairo_matrix_init (&taffine,
w / self->vbox.rect.width,
0,
0,
h / self->vbox.rect.height,
x,
y);
cairo_matrix_multiply (&affine, &taffine, &affine);
_rsvg_push_view_box (ctx, self->vbox.rect.width, self->vbox.rect.height);
}
cairo_matrix_init_translate (&taffine,
-_rsvg_css_normalize_length (&self->refX, ctx, 'h'),
-_rsvg_css_normalize_length (&self->refY, ctx, 'v'));
cairo_matrix_multiply (&affine, &taffine, &affine);
rsvg_state_push (ctx);
state = rsvg_current_state (ctx);
rsvg_state_reinit (state);
rsvg_state_reconstruct (state, &self->super);
state->affine = affine;
rsvg_push_discrete_layer (ctx);
state = rsvg_current_state (ctx);
if (!state->overflow) {
if (self->vbox.active)
rsvg_add_clipping_rect (ctx, self->vbox.rect.x, self->vbox.rect.y,
self->vbox.rect.width, self->vbox.rect.height);
else
rsvg_add_clipping_rect (ctx, 0, 0,
_rsvg_css_normalize_length (&self->width, ctx, 'h'),
_rsvg_css_normalize_length (&self->height, ctx, 'v'));
}
for (i = 0; i < self->super.children->len; i++) {
rsvg_state_push (ctx);
rsvg_node_draw (g_ptr_array_index (self->super.children, i), ctx, 0);
rsvg_state_pop (ctx);
}
rsvg_pop_discrete_layer (ctx);
rsvg_state_pop (ctx);
if (self->vbox.active)
_rsvg_pop_view_box (ctx);
}