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Code Issues Releases Wiki Activity

overlays: properly align lines with leading or trailing whitespace

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This commit is contained in:
Megamouse 2022-07-14 21:09:47 +02:00
parent d2be12bb07
commit 105781fa76
1 changed files with 62 additions and 22 deletions
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78
rpcs3/Emu/RSX/Overlays/overlay_controls.cpp
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@ -359,55 +359,94 @@ namespace rsx
{
auto renderer = get_font();
f32 text_extents_w = 0.f;
const u16 clip_width = clip_text ? w : umax;
std::vector<vertex> result = renderer->render_text(string, clip_width, wrap_text);
if (!result.empty())
{
const auto apply_transform = [&]()
{
const f32 size_px = renderer->get_size_px();
for (vertex& v : result)
{
// Check for real text region extent
// TODO: Ellipsis
text_extents_w = std::max(v.values[0], text_extents_w);
// Apply transform.
// (0, 0) has text sitting one line off the top left corner (text is outside the rect) hence the offset by text height
v.values[0] += x + padding_left;
v.values[1] += y + padding_top + static_cast<f32>(renderer->get_size_px());
v.x() += x + padding_left;
v.y() += y + padding_top + size_px;
}
};
if (alignment != text_align::left)
if (alignment == text_align::left)
{
apply_transform();
}
else
{
// Scan for lines and measure them
// Reposition them to the center or right depending on the alignment
std::vector<std::pair<u32, u32>> lines;
std::vector<std::tuple<u32, u32, f32>> lines;
u32 line_begin = 0;
u32 line_end = 0;
u32 word_end = 0;
u32 ctr = 0;
f32 text_extents_w = w;
for (auto c : text)
for (const auto& c : text)
{
switch (c)
{
case '\r':
{
word_end = line_end = line_begin = ctr;
continue;
}
case '\n':
lines.emplace_back(line_begin, ctr);
line_begin = ctr;
{
lines.emplace_back(line_begin, std::min(word_end, line_end), text_extents_w);
word_end = line_end = line_begin = ctr;
text_extents_w = w;
continue;
}
default:
{
ctr += 4;
break;
if (c == ' ')
{
if (line_end == line_begin)
{
// Ignore leading whitespace
word_end = line_end = line_begin = ctr;
}
else
{
line_end = ctr;
}
}
else
{
word_end = line_end = ctr;
// Check for real text region extent
text_extents_w = std::max(result[ctr - 1].x(), text_extents_w);
}
continue;
}
}
}
lines.emplace_back(line_begin, ctr);
const f32 max_region_w = std::max<f32>(text_extents_w, w);
// Add final line
lines.emplace_back(line_begin, std::min(word_end, line_end), std::max<f32>(text_extents_w, w));
const f32 offset_extent = (alignment == text_align::center ? 0.5f : 1.0f);
const f32 size_px = renderer->get_size_px() * 0.5f;
// Apply padding
apply_transform();
// Moves all glyphs of a line by the correct amount to get a nice alignment.
const auto move_line = [&result, &max_region_w, &offset_extent](u32 begin, u32 end)
const auto move_line = [&result, &offset_extent](u32 begin, u32 end, f32 max_region_w)
{
const f32 line_length = result[end - 1].x() - result[begin].x();
@ -421,7 +460,8 @@ namespace rsx
}
};
for (const auto& [begin, end] : lines)
// Properly place all lines individually
for (const auto& [begin, end, max_region_w] : lines)
{
if (begin >= end)
continue;
@ -430,7 +470,7 @@ namespace rsx
if (std::fabs(result[end - 1].y() - result[begin + 3].y()) < size_px)
{
// No wrapping involved. We can just move the entire line.
move_line(begin, end);
move_line(begin, end, max_region_w);
continue;
}
@ -446,7 +486,7 @@ namespace rsx
// Whenever we reached the end of a visual line we need to move its glyphs accordingly.
const u32 i_end = i_next - (is_last_glyph ? 0 : 4);
move_line(i_begin, i_end);
move_line(i_begin, i_end, max_region_w);
i_begin = i_end;