using std::string;
using std::min;
using std::max;
+using std::pair;
using boost::shared_ptr;
using boost::optional;
static int
-calculate_position (libdcp::VAlign v_align, double v_position, int target_height, int offset)
+calculate_position (dcp::VAlign v_align, double v_position, int target_height, int offset)
{
switch (v_align) {
- case libdcp::TOP:
+ case dcp::TOP:
return (v_position / 100) * target_height - offset;
- case libdcp::CENTER:
+ case dcp::CENTER:
return (0.5 + v_position / 100) * target_height - offset;
- case libdcp::BOTTOM:
+ case dcp::BOTTOM:
return (1.0 - v_position / 100) * target_height - offset;
}
return 0;
}
-void
-render_subtitles (list<libdcp::Subtitle> subtitles, libdcp::Size target, shared_ptr<Image>& image, Position<int>& position)
+PositionImage
+render_subtitles (list<dcp::SubtitleString> subtitles, dcp::Size target)
{
if (subtitles.empty ()) {
- image.reset ();
- return;
+ return PositionImage ();
}
/* Estimate height that the subtitle image needs to be */
optional<int> top;
optional<int> bottom;
- for (list<libdcp::Subtitle>::const_iterator i = subtitles.begin(); i != subtitles.end(); ++i) {
+ for (list<dcp::SubtitleString>::const_iterator i = subtitles.begin(); i != subtitles.end(); ++i) {
int const b = calculate_position (i->v_align(), i->v_position(), target.height, 0);
int const t = b - i->size() * target.height / (11 * 72);
top = top.get() - 32;
bottom = bottom.get() + 32;
- image.reset (new Image (PIX_FMT_RGBA, libdcp::Size (target.width, bottom.get() - top.get ()), false));
+ shared_ptr<Image> image (new Image (PIX_FMT_RGBA, dcp::Size (target.width, bottom.get() - top.get ()), false));
image->make_black ();
Cairo::RefPtr<Cairo::ImageSurface> surface = Cairo::ImageSurface::create (
context->set_line_width (1);
- for (list<libdcp::Subtitle>::const_iterator i = subtitles.begin(); i != subtitles.end(); ++i) {
+ for (list<dcp::SubtitleString>::const_iterator i = subtitles.begin(); i != subtitles.end(); ++i) {
string f = i->font ();
if (f.empty ()) {
f = "Arial";
/* XXX */
float fade_factor = 1;
#if 0
- libdcp::Time now (time * 1000 / (4 * TIME_HZ));
- libdcp::Time end_fade_up = i->in() + i->fade_up_time ();
- libdcp::Time start_fade_down = i->out() - i->fade_down_time ();
+ dcp::Time now (time * 1000 / (4 * TIME_HZ));
+ dcp::Time end_fade_up = i->in() + i->fade_up_time ();
+ dcp::Time start_fade_down = i->out() - i->fade_down_time ();
if (now < end_fade_up) {
fade_factor = (now - i->in()) / i->fade_up_time();
} else if (now > start_fade_down) {
int const x = 0;
int const y = calculate_position (i->v_align (), i->v_position (), target.height, (layout->get_baseline() / PANGO_SCALE) + top.get ());
- if (i->effect() == libdcp::SHADOW) {
+ if (i->effect() == dcp::SHADOW) {
/* Drop-shadow effect */
- libdcp::Color const ec = i->effect_color ();
+ dcp::Color const ec = i->effect_color ();
context->set_source_rgba (float(ec.r) / 255, float(ec.g) / 255, float(ec.b) / 255, fade_factor);
context->move_to (x + 4, y + 4);
layout->add_to_cairo_context (context);
/* The actual subtitle */
context->move_to (x, y);
- libdcp::Color const c = i->color ();
+ dcp::Color const c = i->color ();
context->set_source_rgba (float(c.r) / 255, float(c.g) / 255, float(c.b) / 255, fade_factor);
layout->add_to_cairo_context (context);
context->fill ();
- if (i->effect() == libdcp::BORDER) {
+ if (i->effect() == dcp::BORDER) {
/* Border effect */
context->move_to (x, y);
- libdcp::Color ec = i->effect_color ();
+ dcp::Color ec = i->effect_color ();
context->set_source_rgba (float(ec.r) / 255, float(ec.g) / 255, float(ec.b) / 255, fade_factor);
layout->add_to_cairo_context (context);
context->stroke ();
}
}
+
+ return PositionImage (image, Position<int> (0, top.get ()));
}