mirror of
https://github.com/RGBCube/serenity
synced 2025-07-27 17:57:35 +00:00
LibWeb: Use separate structure to represent fragments in paintable tree
This is a part of refactoring towards making the paintable tree independent of the layout tree. Now, instead of transferring text fragments from the layout tree to the paintable tree during the layout commit phase, we allocate separate PaintableFragments that contain only the information necessary for painting. Doing this also allows us to get rid LineBoxes, as they are used only during layout.
This commit is contained in:
Aliaksandr Kalenik
Andreas Kling
parent
785fa60cca
commit
de32b77ceb
401 changed files with 2122 additions and 3614 deletions
|
|
@ -7,10 +7,8 @@
|
|||
#include <LibGfx/AntiAliasingPainter.h>
|
||||
#include <LibWeb/DOM/Document.h>
|
||||
#include <LibWeb/Layout/BlockContainer.h>
|
||||
#include <LibWeb/Layout/ImageBox.h>
|
||||
#include <LibWeb/Painting/BackgroundPainting.h>
|
||||
#include <LibWeb/Painting/InlinePaintable.h>
|
||||
#include <LibWeb/Painting/ShadowPainting.h>
|
||||
|
||||
namespace Web::Painting {
|
||||
|
||||
|
|
@ -168,7 +166,7 @@ template<typename Callback>
|
|||
void InlinePaintable::for_each_fragment(Callback callback) const
|
||||
{
|
||||
// FIXME: This will be slow if the containing block has a lot of fragments!
|
||||
Vector<Layout::LineBoxFragment const&> fragments;
|
||||
Vector<PaintableFragment const&> fragments;
|
||||
verify_cast<PaintableWithLines>(*containing_block()->paintable_box()).for_each_fragment([&](auto& fragment) {
|
||||
if (layout_node().is_inclusive_ancestor_of(fragment.layout_node()))
|
||||
fragments.append(fragment);
|
||||
|
|
@ -184,7 +182,7 @@ void InlinePaintable::mark_contained_fragments()
|
|||
{
|
||||
verify_cast<PaintableWithLines>(*containing_block()->paintable_box()).for_each_fragment([&](auto& fragment) {
|
||||
if (layout_node().is_inclusive_ancestor_of(fragment.layout_node()))
|
||||
const_cast<Layout::LineBoxFragment&>(fragment).set_contained_by_inline_node();
|
||||
const_cast<PaintableFragment&>(fragment).set_contained_by_inline_node();
|
||||
return IterationDecision::Continue;
|
||||
});
|
||||
}
|
||||
|
|
|
|||
|
|
@ -464,7 +464,7 @@ void PaintableBox::clear_clip_overflow_rect(PaintContext& context, PaintPhase ph
|
|||
}
|
||||
}
|
||||
|
||||
void paint_cursor_if_needed(PaintContext& context, Layout::TextNode const& text_node, Layout::LineBoxFragment const& fragment)
|
||||
void paint_cursor_if_needed(PaintContext& context, Layout::TextNode const& text_node, PaintableFragment const& fragment)
|
||||
{
|
||||
auto const& browsing_context = text_node.browsing_context();
|
||||
|
||||
|
|
@ -486,8 +486,9 @@ void paint_cursor_if_needed(PaintContext& context, Layout::TextNode const& text_
|
|||
|
||||
auto fragment_rect = fragment.absolute_rect();
|
||||
|
||||
auto text = text_node.text_for_rendering().bytes_as_string_view().substring_view(fragment.start(), fragment.length());
|
||||
CSSPixelRect cursor_rect {
|
||||
fragment_rect.x() + CSSPixels::nearest_value_for(text_node.first_available_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.first_available_font().width(text.substring_view(0, text_node.browsing_context().cursor_position()->offset() - fragment.start()))),
|
||||
fragment_rect.top(),
|
||||
1,
|
||||
fragment_rect.height()
|
||||
|
|
@ -498,7 +499,7 @@ void paint_cursor_if_needed(PaintContext& context, Layout::TextNode const& text_
|
|||
context.recording_painter().draw_rect(cursor_device_rect, text_node.computed_values().color());
|
||||
}
|
||||
|
||||
void paint_text_decoration(PaintContext& context, Layout::Node const& text_node, Layout::LineBoxFragment const& fragment)
|
||||
void paint_text_decoration(PaintContext& context, Layout::Node const& text_node, PaintableFragment const& fragment)
|
||||
{
|
||||
auto& painter = context.recording_painter();
|
||||
auto& font = fragment.layout_node().first_available_font();
|
||||
|
|
@ -580,7 +581,7 @@ void paint_text_decoration(PaintContext& context, Layout::Node const& text_node,
|
|||
}
|
||||
}
|
||||
|
||||
void paint_text_fragment(PaintContext& context, Layout::TextNode const& text_node, Layout::LineBoxFragment const& fragment, PaintPhase phase)
|
||||
void paint_text_fragment(PaintContext& context, Layout::TextNode const& text_node, PaintableFragment const& fragment, PaintPhase phase)
|
||||
{
|
||||
auto& painter = context.recording_painter();
|
||||
|
||||
|
|
@ -625,7 +626,7 @@ void PaintableWithLines::paint(PaintContext& context, PaintPhase phase) const
|
|||
|
||||
PaintableBox::paint(context, phase);
|
||||
|
||||
if (m_line_boxes.is_empty())
|
||||
if (fragments().is_empty())
|
||||
return;
|
||||
|
||||
bool should_clip_overflow = computed_values().overflow_x() != CSS::Overflow::Visible && computed_values().overflow_y() != CSS::Overflow::Visible;
|
||||
|
|
@ -658,47 +659,43 @@ void PaintableWithLines::paint(PaintContext& context, PaintPhase phase) const
|
|||
// So, we paint the shadows before painting any text.
|
||||
// FIXME: Find a smarter way to do this?
|
||||
if (phase == PaintPhase::Foreground) {
|
||||
for (auto& line_box : m_line_boxes) {
|
||||
for (auto& fragment : line_box.fragments()) {
|
||||
if (fragment.contained_by_inline_node())
|
||||
continue;
|
||||
if (is<Layout::TextNode>(fragment.layout_node())) {
|
||||
auto& text_shadow = fragment.layout_node().computed_values().text_shadow();
|
||||
if (!text_shadow.is_empty()) {
|
||||
Vector<ShadowData> resolved_shadow_data;
|
||||
resolved_shadow_data.ensure_capacity(text_shadow.size());
|
||||
for (auto const& layer : text_shadow) {
|
||||
resolved_shadow_data.empend(
|
||||
layer.color,
|
||||
layer.offset_x.to_px(layout_box()),
|
||||
layer.offset_y.to_px(layout_box()),
|
||||
layer.blur_radius.to_px(layout_box()),
|
||||
layer.spread_distance.to_px(layout_box()),
|
||||
ShadowPlacement::Outer);
|
||||
}
|
||||
context.recording_painter().set_font(fragment.layout_node().first_available_font());
|
||||
paint_text_shadow(context, fragment, resolved_shadow_data);
|
||||
for (auto& fragment : fragments()) {
|
||||
if (fragment.contained_by_inline_node())
|
||||
continue;
|
||||
if (is<Layout::TextNode>(fragment.layout_node())) {
|
||||
auto& text_shadow = fragment.layout_node().computed_values().text_shadow();
|
||||
if (!text_shadow.is_empty()) {
|
||||
Vector<ShadowData> resolved_shadow_data;
|
||||
resolved_shadow_data.ensure_capacity(text_shadow.size());
|
||||
for (auto const& layer : text_shadow) {
|
||||
resolved_shadow_data.empend(
|
||||
layer.color,
|
||||
layer.offset_x.to_px(layout_box()),
|
||||
layer.offset_y.to_px(layout_box()),
|
||||
layer.blur_radius.to_px(layout_box()),
|
||||
layer.spread_distance.to_px(layout_box()),
|
||||
ShadowPlacement::Outer);
|
||||
}
|
||||
context.recording_painter().set_font(fragment.layout_node().first_available_font());
|
||||
paint_text_shadow(context, fragment, resolved_shadow_data);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (auto& line_box : m_line_boxes) {
|
||||
for (auto& fragment : line_box.fragments()) {
|
||||
if (fragment.contained_by_inline_node())
|
||||
continue;
|
||||
auto fragment_absolute_rect = fragment.absolute_rect();
|
||||
auto fragment_absolute_device_rect = context.enclosing_device_rect(fragment_absolute_rect);
|
||||
if (context.should_show_line_box_borders()) {
|
||||
context.recording_painter().draw_rect(fragment_absolute_device_rect.to_type<int>(), Color::Green);
|
||||
context.recording_painter().draw_line(
|
||||
context.rounded_device_point(fragment_absolute_rect.top_left().translated(0, fragment.baseline())).to_type<int>(),
|
||||
context.rounded_device_point(fragment_absolute_rect.top_right().translated(-1, fragment.baseline())).to_type<int>(), Color::Red);
|
||||
}
|
||||
if (is<Layout::TextNode>(fragment.layout_node()))
|
||||
paint_text_fragment(context, static_cast<Layout::TextNode const&>(fragment.layout_node()), fragment, phase);
|
||||
for (auto const& fragment : m_fragments) {
|
||||
if (fragment.contained_by_inline_node())
|
||||
continue;
|
||||
auto fragment_absolute_rect = fragment.absolute_rect();
|
||||
auto fragment_absolute_device_rect = context.enclosing_device_rect(fragment_absolute_rect);
|
||||
if (context.should_show_line_box_borders()) {
|
||||
context.recording_painter().draw_rect(fragment_absolute_device_rect.to_type<int>(), Color::Green);
|
||||
context.recording_painter().draw_line(
|
||||
context.rounded_device_point(fragment_absolute_rect.top_left().translated(0, fragment.baseline())).to_type<int>(),
|
||||
context.rounded_device_point(fragment_absolute_rect.top_right().translated(-1, fragment.baseline())).to_type<int>(), Color::Red);
|
||||
}
|
||||
if (is<Layout::TextNode>(fragment.layout_node()))
|
||||
paint_text_fragment(context, static_cast<Layout::TextNode const&>(fragment.layout_node()), fragment, phase);
|
||||
}
|
||||
|
||||
if (should_clip_overflow) {
|
||||
|
|
@ -758,40 +755,38 @@ Optional<HitTestResult> PaintableBox::hit_test(CSSPixelPoint position, HitTestTy
|
|||
|
||||
Optional<HitTestResult> PaintableWithLines::hit_test(CSSPixelPoint position, HitTestType type) const
|
||||
{
|
||||
if (!layout_box().children_are_inline() || m_line_boxes.is_empty())
|
||||
if (!layout_box().children_are_inline() || m_fragments.is_empty())
|
||||
return PaintableBox::hit_test(position, type);
|
||||
|
||||
Optional<HitTestResult> last_good_candidate;
|
||||
for (auto& line_box : m_line_boxes) {
|
||||
for (auto& fragment : line_box.fragments()) {
|
||||
if (is<Layout::Box>(fragment.layout_node()) && static_cast<Layout::Box const&>(fragment.layout_node()).paintable_box()->stacking_context())
|
||||
continue;
|
||||
if (!fragment.layout_node().containing_block()) {
|
||||
dbgln("FIXME: PaintableWithLines::hit_test(): Missing containing block on {}", fragment.layout_node().debug_description());
|
||||
continue;
|
||||
}
|
||||
auto fragment_absolute_rect = fragment.absolute_rect();
|
||||
if (fragment_absolute_rect.contains(position)) {
|
||||
if (is<Layout::BlockContainer>(fragment.layout_node()) && fragment.layout_node().paintable())
|
||||
return fragment.layout_node().paintable()->hit_test(position, type);
|
||||
return HitTestResult { const_cast<Paintable&>(const_cast<Paintable&>(*fragment.layout_node().paintable())), fragment.text_index_at(position.x()) };
|
||||
}
|
||||
for (auto const& fragment : fragments()) {
|
||||
if (is<Layout::Box>(fragment.layout_node()) && static_cast<Layout::Box const&>(fragment.layout_node()).paintable_box()->stacking_context())
|
||||
continue;
|
||||
if (!fragment.layout_node().containing_block()) {
|
||||
dbgln("FIXME: PaintableWithLines::hit_test(): Missing containing block on {}", fragment.layout_node().debug_description());
|
||||
continue;
|
||||
}
|
||||
auto fragment_absolute_rect = fragment.absolute_rect();
|
||||
if (fragment_absolute_rect.contains(position)) {
|
||||
if (is<Layout::BlockContainer>(fragment.layout_node()) && fragment.layout_node().paintable())
|
||||
return fragment.layout_node().paintable()->hit_test(position, type);
|
||||
return HitTestResult { const_cast<Paintable&>(const_cast<Paintable&>(*fragment.layout_node().paintable())), fragment.text_index_at(position.x()) };
|
||||
}
|
||||
|
||||
// If we reached this point, the position is not within the fragment. However, the fragment start or end might be the place to place the cursor.
|
||||
// This determines whether the fragment is a good candidate for the position. The last such good fragment is chosen.
|
||||
// The best candidate is either the end of the line above, the beginning of the line below, or the beginning or end of the current line.
|
||||
// We arbitrarily choose to consider the end of the line above and ignore the beginning of the line below.
|
||||
// If we knew the direction of selection, we could make a better choice.
|
||||
if (fragment_absolute_rect.bottom() - 1 <= position.y()) { // fully below the fragment
|
||||
last_good_candidate = HitTestResult { const_cast<Paintable&>(*fragment.layout_node().paintable()), fragment.start() + fragment.length() };
|
||||
} else if (fragment_absolute_rect.top() <= position.y()) { // vertically within the fragment
|
||||
if (position.x() < fragment_absolute_rect.left()) { // left of the fragment
|
||||
if (!last_good_candidate.has_value()) { // first fragment of the line
|
||||
last_good_candidate = HitTestResult { const_cast<Paintable&>(*fragment.layout_node().paintable()), fragment.start() };
|
||||
}
|
||||
} else { // right of the fragment
|
||||
last_good_candidate = HitTestResult { const_cast<Paintable&>(*fragment.layout_node().paintable()), fragment.start() + fragment.length() };
|
||||
// If we reached this point, the position is not within the fragment. However, the fragment start or end might be the place to place the cursor.
|
||||
// This determines whether the fragment is a good candidate for the position. The last such good fragment is chosen.
|
||||
// The best candidate is either the end of the line above, the beginning of the line below, or the beginning or end of the current line.
|
||||
// We arbitrarily choose to consider the end of the line above and ignore the beginning of the line below.
|
||||
// If we knew the direction of selection, we could make a better choice.
|
||||
if (fragment_absolute_rect.bottom() - 1 <= position.y()) { // fully below the fragment
|
||||
last_good_candidate = HitTestResult { const_cast<Paintable&>(*fragment.layout_node().paintable()), fragment.start() + fragment.length() };
|
||||
} else if (fragment_absolute_rect.top() <= position.y()) { // vertically within the fragment
|
||||
if (position.x() < fragment_absolute_rect.left()) { // left of the fragment
|
||||
if (!last_good_candidate.has_value()) { // first fragment of the line
|
||||
last_good_candidate = HitTestResult { const_cast<Paintable&>(*fragment.layout_node().paintable()), fragment.start() };
|
||||
}
|
||||
} else { // right of the fragment
|
||||
last_good_candidate = HitTestResult { const_cast<Paintable&>(*fragment.layout_node().paintable()), fragment.start() + fragment.length() };
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -9,6 +9,7 @@
|
|||
#include <LibWeb/Painting/BorderPainting.h>
|
||||
#include <LibWeb/Painting/BorderRadiusCornerClipper.h>
|
||||
#include <LibWeb/Painting/Paintable.h>
|
||||
#include <LibWeb/Painting/PaintableFragment.h>
|
||||
#include <LibWeb/Painting/ShadowPainting.h>
|
||||
|
||||
namespace Web::Painting {
|
||||
|
|
@ -228,17 +229,19 @@ public:
|
|||
Layout::BlockContainer const& layout_box() const;
|
||||
Layout::BlockContainer& layout_box();
|
||||
|
||||
Vector<Layout::LineBox> const& line_boxes() const { return m_line_boxes; }
|
||||
void set_line_boxes(Vector<Layout::LineBox>&& line_boxes) { m_line_boxes = move(line_boxes); }
|
||||
Vector<PaintableFragment> const& fragments() const { return m_fragments; }
|
||||
|
||||
void add_fragment(Layout::LineBoxFragment const& fragment)
|
||||
{
|
||||
m_fragments.append(PaintableFragment { fragment });
|
||||
}
|
||||
|
||||
template<typename Callback>
|
||||
void for_each_fragment(Callback callback) const
|
||||
{
|
||||
for (auto& line_box : line_boxes()) {
|
||||
for (auto& fragment : line_box.fragments()) {
|
||||
if (callback(fragment) == IterationDecision::Break)
|
||||
return;
|
||||
}
|
||||
for (auto& fragment : m_fragments) {
|
||||
if (callback(fragment) == IterationDecision::Break)
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -247,17 +250,24 @@ public:
|
|||
|
||||
virtual Optional<HitTestResult> hit_test(CSSPixelPoint, HitTestType) const override;
|
||||
|
||||
virtual void visit_edges(Cell::Visitor& visitor) override
|
||||
{
|
||||
Base::visit_edges(visitor);
|
||||
for (auto& fragment : m_fragments)
|
||||
visitor.visit(JS::NonnullGCPtr { fragment.layout_node() });
|
||||
}
|
||||
|
||||
protected:
|
||||
PaintableWithLines(Layout::BlockContainer const&);
|
||||
|
||||
private:
|
||||
[[nodiscard]] virtual bool is_paintable_with_lines() const final { return true; }
|
||||
|
||||
Vector<Layout::LineBox> m_line_boxes;
|
||||
Vector<PaintableFragment> m_fragments;
|
||||
};
|
||||
|
||||
void paint_text_decoration(PaintContext& context, Layout::Node const& text_node, Layout::LineBoxFragment const& fragment);
|
||||
void paint_cursor_if_needed(PaintContext& context, Layout::TextNode const& text_node, Layout::LineBoxFragment const& fragment);
|
||||
void paint_text_fragment(PaintContext& context, Layout::TextNode const& text_node, Layout::LineBoxFragment const& fragment, PaintPhase phase);
|
||||
void paint_text_decoration(PaintContext& context, Layout::Node const& text_node, PaintableFragment const& fragment);
|
||||
void paint_cursor_if_needed(PaintContext& context, Layout::TextNode const& text_node, PaintableFragment const& fragment);
|
||||
void paint_text_fragment(PaintContext& context, Layout::TextNode const& text_node, PaintableFragment const& fragment, PaintPhase phase);
|
||||
|
||||
}
|
||||
|
|
|
|||
141
Userland/Libraries/LibWeb/Painting/PaintableFragment.cpp
Normal file
141
Userland/Libraries/LibWeb/Painting/PaintableFragment.cpp
Normal file
|
|
@ -0,0 +1,141 @@
|
|||
/*
|
||||
* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#include <LibWeb/DOM/Range.h>
|
||||
#include <LibWeb/Layout/Viewport.h>
|
||||
#include <LibWeb/Painting/PaintableBox.h>
|
||||
|
||||
namespace Web::Painting {
|
||||
|
||||
PaintableFragment::PaintableFragment(Layout::LineBoxFragment const& fragment)
|
||||
: m_layout_node(fragment.layout_node())
|
||||
, m_offset(fragment.offset())
|
||||
, m_size(fragment.size())
|
||||
, m_baseline(fragment.baseline())
|
||||
, m_start(fragment.start())
|
||||
, m_length(fragment.length())
|
||||
, m_glyph_run(fragment.glyph_run())
|
||||
{
|
||||
}
|
||||
|
||||
CSSPixelRect const PaintableFragment::absolute_rect() const
|
||||
{
|
||||
CSSPixelRect rect { {}, size() };
|
||||
rect.set_location(m_layout_node->containing_block()->paintable_box()->absolute_position());
|
||||
rect.translate_by(offset());
|
||||
return rect;
|
||||
}
|
||||
|
||||
int PaintableFragment::text_index_at(CSSPixels x) const
|
||||
{
|
||||
if (!is<Layout::TextNode>(*m_layout_node))
|
||||
return 0;
|
||||
auto& layout_text = verify_cast<Layout::TextNode>(layout_node());
|
||||
auto& font = layout_text.first_available_font();
|
||||
Utf8View view(layout_text.text_for_rendering().bytes_as_string_view().substring_view(m_start, m_length));
|
||||
|
||||
CSSPixels relative_x = x - absolute_rect().x();
|
||||
CSSPixels glyph_spacing = font.glyph_spacing();
|
||||
|
||||
if (relative_x < 0)
|
||||
return 0;
|
||||
|
||||
CSSPixels width_so_far = 0;
|
||||
for (auto it = view.begin(); it != view.end(); ++it) {
|
||||
auto previous_it = it;
|
||||
CSSPixels glyph_width = CSSPixels::nearest_value_for(font.glyph_or_emoji_width(it));
|
||||
|
||||
if ((width_so_far + glyph_width + glyph_spacing / 2) > relative_x)
|
||||
return m_start + view.byte_offset_of(previous_it);
|
||||
|
||||
width_so_far += glyph_width + glyph_spacing;
|
||||
}
|
||||
|
||||
return m_start + m_length;
|
||||
}
|
||||
|
||||
CSSPixelRect PaintableFragment::selection_rect(Gfx::Font const& font) const
|
||||
{
|
||||
if (layout_node().selection_state() == Layout::Node::SelectionState::None)
|
||||
return {};
|
||||
|
||||
if (layout_node().selection_state() == Layout::Node::SelectionState::Full)
|
||||
return absolute_rect();
|
||||
|
||||
if (!is<Layout::TextNode>(layout_node()))
|
||||
return {};
|
||||
|
||||
auto selection = layout_node().root().selection();
|
||||
if (!selection)
|
||||
return {};
|
||||
auto range = selection->range();
|
||||
if (!range)
|
||||
return {};
|
||||
|
||||
// FIXME: m_start and m_length should be unsigned and then we won't need these casts.
|
||||
auto const start_index = static_cast<unsigned>(m_start);
|
||||
auto const end_index = static_cast<unsigned>(m_start) + static_cast<unsigned>(m_length);
|
||||
|
||||
auto& layout_text = verify_cast<Layout::TextNode>(layout_node());
|
||||
auto text = layout_text.text_for_rendering().bytes_as_string_view().substring_view(m_start, m_length);
|
||||
|
||||
if (layout_node().selection_state() == Layout::Node::SelectionState::StartAndEnd) {
|
||||
// we are in the start/end node (both the same)
|
||||
if (start_index > range->end_offset())
|
||||
return {};
|
||||
if (end_index < range->start_offset())
|
||||
return {};
|
||||
|
||||
if (range->start_offset() == range->end_offset())
|
||||
return {};
|
||||
|
||||
auto selection_start_in_this_fragment = max(0, range->start_offset() - m_start);
|
||||
auto selection_end_in_this_fragment = min(m_length, range->end_offset() - m_start);
|
||||
auto pixel_distance_to_first_selected_character = CSSPixels::nearest_value_for(font.width(text.substring_view(0, selection_start_in_this_fragment)));
|
||||
auto pixel_width_of_selection = CSSPixels::nearest_value_for(font.width(text.substring_view(selection_start_in_this_fragment, selection_end_in_this_fragment - selection_start_in_this_fragment))) + 1;
|
||||
|
||||
auto rect = absolute_rect();
|
||||
rect.set_x(rect.x() + pixel_distance_to_first_selected_character);
|
||||
rect.set_width(pixel_width_of_selection);
|
||||
|
||||
return rect;
|
||||
}
|
||||
if (layout_node().selection_state() == Layout::Node::SelectionState::Start) {
|
||||
// we are in the start node
|
||||
if (end_index < range->start_offset())
|
||||
return {};
|
||||
|
||||
auto selection_start_in_this_fragment = max(0, range->start_offset() - m_start);
|
||||
auto selection_end_in_this_fragment = m_length;
|
||||
auto pixel_distance_to_first_selected_character = CSSPixels::nearest_value_for(font.width(text.substring_view(0, selection_start_in_this_fragment)));
|
||||
auto pixel_width_of_selection = CSSPixels::nearest_value_for(font.width(text.substring_view(selection_start_in_this_fragment, selection_end_in_this_fragment - selection_start_in_this_fragment))) + 1;
|
||||
|
||||
auto rect = absolute_rect();
|
||||
rect.set_x(rect.x() + pixel_distance_to_first_selected_character);
|
||||
rect.set_width(pixel_width_of_selection);
|
||||
|
||||
return rect;
|
||||
}
|
||||
if (layout_node().selection_state() == Layout::Node::SelectionState::End) {
|
||||
// we are in the end node
|
||||
if (start_index > range->end_offset())
|
||||
return {};
|
||||
|
||||
auto selection_start_in_this_fragment = 0;
|
||||
auto selection_end_in_this_fragment = min(range->end_offset() - m_start, m_length);
|
||||
auto pixel_distance_to_first_selected_character = CSSPixels::nearest_value_for(font.width(text.substring_view(0, selection_start_in_this_fragment)));
|
||||
auto pixel_width_of_selection = CSSPixels::nearest_value_for(font.width(text.substring_view(selection_start_in_this_fragment, selection_end_in_this_fragment - selection_start_in_this_fragment))) + 1;
|
||||
|
||||
auto rect = absolute_rect();
|
||||
rect.set_x(rect.x() + pixel_distance_to_first_selected_character);
|
||||
rect.set_width(pixel_width_of_selection);
|
||||
|
||||
return rect;
|
||||
}
|
||||
return {};
|
||||
}
|
||||
|
||||
}
|
||||
59
Userland/Libraries/LibWeb/Painting/PaintableFragment.h
Normal file
59
Userland/Libraries/LibWeb/Painting/PaintableFragment.h
Normal file
|
|
@ -0,0 +1,59 @@
|
|||
/*
|
||||
* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <LibWeb/Layout/LineBoxFragment.h>
|
||||
#include <LibWeb/Layout/Node.h>
|
||||
#include <LibWeb/Painting/BorderRadiiData.h>
|
||||
#include <LibWeb/PixelUnits.h>
|
||||
|
||||
namespace Web::Painting {
|
||||
|
||||
class PaintableFragment {
|
||||
public:
|
||||
explicit PaintableFragment(Layout::LineBoxFragment const&);
|
||||
|
||||
Layout::Node const& layout_node() const { return m_layout_node; }
|
||||
|
||||
int start() const { return m_start; }
|
||||
int length() const { return m_length; }
|
||||
|
||||
CSSPixels baseline() const { return m_baseline; }
|
||||
CSSPixelPoint offset() const { return m_offset; }
|
||||
void set_offset(CSSPixelPoint offset) { m_offset = offset; }
|
||||
CSSPixelSize size() const { return m_size; }
|
||||
|
||||
BorderRadiiData const& border_radii_data() const { return m_border_radii_data; }
|
||||
void set_border_radii_data(BorderRadiiData const& border_radii_data) { m_border_radii_data = border_radii_data; }
|
||||
|
||||
CSSPixelRect const absolute_rect() const;
|
||||
|
||||
Vector<Gfx::DrawGlyphOrEmoji> const& glyph_run() const { return m_glyph_run; }
|
||||
|
||||
CSSPixelRect selection_rect(Gfx::Font const&) const;
|
||||
|
||||
bool contained_by_inline_node() const { return m_contained_by_inline_node; }
|
||||
void set_contained_by_inline_node() { m_contained_by_inline_node = true; }
|
||||
|
||||
CSSPixels width() const { return m_size.width(); }
|
||||
CSSPixels height() const { return m_size.height(); }
|
||||
|
||||
int text_index_at(CSSPixels) const;
|
||||
|
||||
private:
|
||||
JS::NonnullGCPtr<Layout::Node const> m_layout_node;
|
||||
CSSPixelPoint m_offset;
|
||||
CSSPixelSize m_size;
|
||||
CSSPixels m_baseline;
|
||||
int m_start;
|
||||
int m_length;
|
||||
Painting::BorderRadiiData m_border_radii_data;
|
||||
Vector<Gfx::DrawGlyphOrEmoji> m_glyph_run;
|
||||
bool m_contained_by_inline_node { false };
|
||||
};
|
||||
|
||||
}
|
||||
|
|
@ -17,6 +17,7 @@
|
|||
#include <LibWeb/Painting/BorderRadiusCornerClipper.h>
|
||||
#include <LibWeb/Painting/PaintContext.h>
|
||||
#include <LibWeb/Painting/PaintOuterBoxShadowParams.h>
|
||||
#include <LibWeb/Painting/PaintableBox.h>
|
||||
#include <LibWeb/Painting/ShadowPainting.h>
|
||||
|
||||
namespace Web::Painting {
|
||||
|
|
@ -578,9 +579,9 @@ void paint_box_shadow(PaintContext& context,
|
|||
}
|
||||
}
|
||||
|
||||
void paint_text_shadow(PaintContext& context, Layout::LineBoxFragment const& fragment, Vector<ShadowData> const& shadow_layers)
|
||||
void paint_text_shadow(PaintContext& context, PaintableFragment const& fragment, Vector<ShadowData> const& shadow_layers)
|
||||
{
|
||||
if (shadow_layers.is_empty() || fragment.text().is_empty())
|
||||
if (shadow_layers.is_empty() || fragment.glyph_run().is_empty())
|
||||
return;
|
||||
|
||||
auto fragment_width = context.enclosing_device_pixels(fragment.width()).value();
|
||||
|
|
|
|||
|
|
@ -10,6 +10,7 @@
|
|||
#include <LibWeb/Forward.h>
|
||||
#include <LibWeb/Painting/PaintContext.h>
|
||||
#include <LibWeb/Painting/PaintOuterBoxShadowParams.h>
|
||||
#include <LibWeb/Painting/PaintableFragment.h>
|
||||
#include <LibWeb/Painting/ShadowData.h>
|
||||
|
||||
namespace Web::Painting {
|
||||
|
|
@ -26,6 +27,6 @@ void paint_box_shadow(
|
|||
BordersData const& borders_data,
|
||||
BorderRadiiData const&,
|
||||
Vector<ShadowData> const&);
|
||||
void paint_text_shadow(PaintContext&, Layout::LineBoxFragment const&, Vector<ShadowData> const&);
|
||||
void paint_text_shadow(PaintContext&, PaintableFragment const&, Vector<ShadowData> const&);
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue