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LibGfx: Avoid rounding/truncating glyph positions till blitting

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This keeps some overloads that accept ints to avoid adding calls to
.to_type<float>() all over the place.
This commit is contained in:
MacDue 2023-01-01 19:42:00 +01:00 • committed by Andreas Kling
parent 68f678f566
commit a1726b1ba5
14 changed files with 172 additions and 106 deletions
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22
Userland/Libraries/LibGfx/TextLayout.cpp
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@ -20,15 +20,15 @@ struct Block {
Utf8View characters;
};
IntRect TextLayout::bounding_rect(TextWrapping wrapping, int line_spacing) const
FloatRect TextLayout::bounding_rect(TextWrapping wrapping, int line_spacing) const
{
auto lines = wrap_lines(TextElision::None, wrapping, line_spacing, FitWithinRect::No);
if (!lines.size()) {
return {};
}
IntRect bounding_rect = {
0, 0, 0, static_cast<int>((lines.size() * (m_font->pixel_size() + line_spacing)) - line_spacing)
FloatRect bounding_rect = {
0, 0, 0, (lines.size() * (m_font->pixel_size() + line_spacing)) - line_spacing
};
for (auto& line : lines) {
@ -119,7 +119,7 @@ Vector<DeprecatedString, 32> TextLayout::wrap_lines(TextElision elision, TextWra
Vector<DeprecatedString> lines;
StringBuilder builder;
size_t line_width = 0;
float line_width = 0;
size_t current_block = 0;
bool did_not_finish = false;
for (Block& block : blocks) {
@ -139,14 +139,14 @@ Vector<DeprecatedString, 32> TextLayout::wrap_lines(TextElision elision, TextWra
}
case BlockType::Whitespace:
case BlockType::Word: {
size_t block_width = font().width(block.characters);
float block_width = font().width(block.characters);
// FIXME: This should look at the specific advance amount of the
// last character, but we don't support that yet.
if (current_block != blocks.size() - 1) {
block_width += font().glyph_spacing();
}
if (wrapping == TextWrapping::Wrap && line_width + block_width > static_cast<unsigned>(m_rect.width())) {
if (wrapping == TextWrapping::Wrap && line_width + block_width > m_rect.width()) {
lines.append(builder.to_deprecated_string());
builder.clear();
line_width = 0;
@ -185,10 +185,10 @@ blocks_processed:
DeprecatedString TextLayout::elide_text_from_right(Utf8View text, bool force_elision) const
{
size_t text_width = m_font->width(text);
float text_width = m_font->width(text);
if (force_elision || text_width > static_cast<unsigned>(m_rect.width())) {
size_t ellipsis_width = m_font->width("..."sv);
size_t current_width = ellipsis_width;
float ellipsis_width = m_font->width("..."sv);
float current_width = ellipsis_width;
size_t glyph_spacing = m_font->glyph_spacing();
// FIXME: This code will break when the font has glyphs with advance
@ -198,11 +198,11 @@ DeprecatedString TextLayout::elide_text_from_right(Utf8View text, bool force_eli
size_t offset = 0;
for (auto it = text.begin(); !it.done(); ++it) {
auto code_point = *it;
int glyph_width = m_font->glyph_or_emoji_width(code_point);
auto glyph_width = m_font->glyph_or_emoji_width(code_point);
// NOTE: Glyph spacing should not be added after the last glyph on the line,
// but since we are here because the last glyph does not actually fit on the line,
// we don't have to worry about spacing.
int width_with_this_glyph_included = current_width + glyph_width + glyph_spacing;
auto width_with_this_glyph_included = current_width + glyph_width + glyph_spacing;
if (width_with_this_glyph_included > m_rect.width())
break;
current_width += glyph_width + glyph_spacing;