- int layout_width;
- int layout_height;
- layout->get_pixel_size (layout_width, layout_height);
- layout_width *= xscale;
- layout_height *= yscale;
-
- int x = 0;
- switch (subtitles.front().h_align ()) {
- case dcp::HALIGN_LEFT:
- /* h_position is distance between left of frame and left of subtitle */
- x = subtitles.front().h_position() * target.width;
- break;
- case dcp::HALIGN_CENTER:
- /* h_position is distance between centre of frame and centre of subtitle */
- x = (0.5 + subtitles.front().h_position()) * target.width - layout_width / 2;
- break;
- case dcp::HALIGN_RIGHT:
- /* h_position is distance between right of frame and right of subtitle */
- x = (1.0 - subtitles.front().h_position()) * target.width - layout_width;
- break;
- }
-
- int y = 0;
- switch (subtitles.front().v_align ()) {
- case dcp::VALIGN_TOP:
- /* SMPTE says that v_position is the distance between top
- of frame and top of subtitle, but this doesn't always seem to be
- the case in practice; Gunnar Ásgeirsson's Dolby server appears
- to put VALIGN_TOP subs with v_position as the distance between top
- of frame and bottom of subtitle.
- */
- y = subtitles.front().v_position() * target.height - layout_height;
- break;
- case dcp::VALIGN_CENTER:
- /* v_position is distance between centre of frame and centre of subtitle */
- y = (0.5 + subtitles.front().v_position()) * target.height - layout_height / 2;
- break;
- case dcp::VALIGN_BOTTOM:
- /* v_position is distance between bottom of frame and bottom of subtitle */
- y = (1.0 - subtitles.front().v_position()) * target.height - layout_height;
- break;
- }
-
- return PositionImage (image, Position<int> (max (0, x), max (0, y)));
+ int const x = x_position (first, target.width, size.width);
+ int const y = y_position (first, target.height, size.height);
+ return PositionImage (image, Position<int>(max (0, x), max(0, y)));