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LibWeb: Add CSSPixels::nearest_value_for(FloatingPoint)

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This is intended to annotate conversions from unknown floating-point
values to CSSPixels, and make it more obvious the fp value will be
rounded to the nearest fixed-point value.
This commit is contained in:
MacDue 2023-08-26 15:57:31 +01:00 • committed by Alexander Kalenik
parent 360c0eb509
commit 71baa8c31a
28 changed files with 120 additions and 112 deletions
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4
Userland/Libraries/LibWeb/Painting/BackgroundPainting.cpp
View file

@ -263,7 +263,7 @@ void paint_background(PaintContext& context, Layout::NodeWithStyleAndBoxModelMet
repeat_x = false;
} else {
auto space = fmod(background_positioning_area.width().to_double(), image_rect.width().to_double());
x_step = image_rect.width() + CSSPixels(space / static_cast<double>(whole_images - 1));
x_step = image_rect.width() + CSSPixels::nearest_value_for(space / static_cast<double>(whole_images - 1));
repeat_x = true;
}
break;
@ -294,7 +294,7 @@ void paint_background(PaintContext& context, Layout::NodeWithStyleAndBoxModelMet
repeat_y = false;
} else {
auto space = fmod(background_positioning_area.height().to_float(), image_rect.height().to_float());
y_step = image_rect.height() + CSSPixels(static_cast<double>(space) / static_cast<double>(whole_images - 1));
y_step = image_rect.height() + CSSPixels::nearest_value_for(static_cast<double>(space) / static_cast<double>(whole_images - 1));
repeat_y = true;
}
break;

2
Userland/Libraries/LibWeb/Painting/GradientPainting.cpp
View file

@ -117,7 +117,7 @@ LinearGradientData resolve_linear_gradient_data(Layout::NodeWithStyleAndBoxModel
auto resolved_color_stops = resolve_color_stop_positions(
node, linear_gradient.color_stop_list(), [&](auto const& length_percentage) {
return length_percentage.to_px(node, CSSPixels(gradient_length_px)).to_float() / static_cast<float>(gradient_length_px);
return length_percentage.to_px(node, CSSPixels::nearest_value_for(gradient_length_px)).to_float() / static_cast<float>(gradient_length_px);
},
linear_gradient.is_repeating());

2
Userland/Libraries/LibWeb/Painting/PaintContext.cpp
View file

@ -96,7 +96,7 @@ DevicePixelSize PaintContext::rounded_device_size(CSSPixelSize size) const
CSSPixels PaintContext::scale_to_css_pixels(DevicePixels device_pixels) const
{
return CSSPixels(device_pixels.value() / m_device_pixels_per_css_pixel);
return CSSPixels::nearest_value_for(device_pixels.value() / m_device_pixels_per_css_pixel);
}
CSSPixelPoint PaintContext::scale_to_css_point(DevicePixelPoint point) const

8
Userland/Libraries/LibWeb/Painting/PaintableBox.cpp
View file

@ -258,8 +258,8 @@ void PaintableBox::paint(PaintContext& context, PaintPhase phase) const
auto size_text_rect = border_rect;
size_text_rect.set_y(border_rect.y() + border_rect.height());
size_text_rect.set_top(size_text_rect.top());
size_text_rect.set_width(CSSPixels(font.width(size_text)) + 4);
size_text_rect.set_height(CSSPixels(font.pixel_size()) + 4);
size_text_rect.set_width(CSSPixels::nearest_value_for(font.width(size_text)) + 4);
size_text_rect.set_height(CSSPixels::nearest_value_for(font.pixel_size()) + 4);
auto size_text_device_rect = context.enclosing_device_rect(size_text_rect).to_type<int>();
context.painter().fill_rect(size_text_device_rect, context.palette().color(Gfx::ColorRole::Tooltip));
context.painter().draw_rect(size_text_device_rect, context.palette().threed_shadow1());
@ -503,7 +503,7 @@ static void paint_cursor_if_needed(PaintContext& context, Layout::TextNode const
auto fragment_rect = fragment.absolute_rect();
CSSPixelRect cursor_rect {
fragment_rect.x() + CSSPixels(text_node.font().width(fragment.text().substring_view(0, text_node.browsing_context().cursor_position().offset() - fragment.start()))),
fragment_rect.x() + CSSPixels::nearest_value_for(text_node.font().width(fragment.text().substring_view(0, text_node.browsing_context().cursor_position().offset() - fragment.start()))),
fragment_rect.top(),
1,
fragment_rect.height()
@ -518,7 +518,7 @@ static void paint_text_decoration(PaintContext& context, Gfx::Painter& painter,
{
auto& font = fragment.layout_node().font();
auto fragment_box = fragment.absolute_rect();
CSSPixels glyph_height = CSSPixels(font.pixel_size());
CSSPixels glyph_height = CSSPixels::nearest_value_for(font.pixel_size());
auto baseline = fragment_box.height() / 2 - (glyph_height + 4) / 2 + glyph_height;
auto line_color = text_node.computed_values().text_decoration_color();