diff options
Diffstat (limited to 'Libraries/LibHTML/Layout/LayoutBox.cpp')
| -rw-r--r-- | Libraries/LibHTML/Layout/LayoutBox.cpp | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/Libraries/LibHTML/Layout/LayoutBox.cpp b/Libraries/LibHTML/Layout/LayoutBox.cpp new file mode 100644 index 0000000000..0e7d69afc9 --- /dev/null +++ b/Libraries/LibHTML/Layout/LayoutBox.cpp @@ -0,0 +1,95 @@ +#include <LibGUI/GPainter.h> +#include <LibHTML/DOM/Document.h> +#include <LibHTML/Frame.h> +#include <LibHTML/Layout/LayoutBlock.h> +#include <LibHTML/Layout/LayoutBox.h> + +//#define DRAW_BOXES_AROUND_LAYOUT_NODES +//#define DRAW_BOXES_AROUND_HOVERED_NODES + +void LayoutBox::render(RenderingContext& context) +{ +#ifdef DRAW_BOXES_AROUND_LAYOUT_NODES + context.painter().draw_rect(m_rect, Color::Blue); +#endif +#ifdef DRAW_BOXES_AROUND_HOVERED_NODES + if (!is_anonymous() && node() == document().hovered_node()) + context.painter().draw_rect(m_rect, Color::Red); +#endif + + Rect padded_rect; + padded_rect.set_x(x() - box_model().padding().left.to_px()); + padded_rect.set_width(width() + box_model().padding().left.to_px() + box_model().padding().right.to_px()); + padded_rect.set_y(y() - box_model().padding().top.to_px()); + padded_rect.set_height(height() + box_model().padding().top.to_px() + box_model().padding().bottom.to_px()); + + auto bgcolor = style().property(CSS::PropertyID::BackgroundColor); + if (bgcolor.has_value() && bgcolor.value()->is_color()) { + context.painter().fill_rect(padded_rect, bgcolor.value()->to_color(document())); + } + + // FIXME: Respect all individual border sides + auto border_width_value = style().property(CSS::PropertyID::BorderTopWidth); + auto border_color_value = style().property(CSS::PropertyID::BorderTopColor); + auto border_style_value = style().property(CSS::PropertyID::BorderTopStyle); + if (border_width_value.has_value() && border_color_value.has_value()) { + int border_width = border_width_value.value()->to_length().to_px(); + Color border_color = border_color_value.value()->to_color(document()); + + if (border_style_value.has_value() && border_style_value.value()->to_string() == "inset") { + // border-style: inset + auto shadow_color = Color::from_rgb(0x888888); + auto highlight_color = Color::from_rgb(0x5a5a5a); + context.painter().draw_line(padded_rect.top_left(), padded_rect.top_right(), highlight_color, border_width); + context.painter().draw_line(padded_rect.top_right(), padded_rect.bottom_right(), shadow_color, border_width); + context.painter().draw_line(padded_rect.bottom_right(), padded_rect.bottom_left(), shadow_color, border_width); + context.painter().draw_line(padded_rect.bottom_left(), padded_rect.top_left(), highlight_color, border_width); + } else if (border_style_value.has_value() && border_style_value.value()->to_string() == "outset") { + // border-style: outset + auto highlight_color = Color::from_rgb(0x888888); + auto shadow_color = Color::from_rgb(0x5a5a5a); + context.painter().draw_line(padded_rect.top_left(), padded_rect.top_right(), highlight_color, border_width); + context.painter().draw_line(padded_rect.top_right(), padded_rect.bottom_right(), shadow_color, border_width); + context.painter().draw_line(padded_rect.bottom_right(), padded_rect.bottom_left(), shadow_color, border_width); + context.painter().draw_line(padded_rect.bottom_left(), padded_rect.top_left(), highlight_color, border_width); + } else { + // border-style: solid + context.painter().draw_line(padded_rect.top_left(), padded_rect.top_right(), border_color, border_width); + context.painter().draw_line(padded_rect.top_right(), padded_rect.bottom_right(), border_color, border_width); + context.painter().draw_line(padded_rect.bottom_right(), padded_rect.bottom_left(), border_color, border_width); + context.painter().draw_line(padded_rect.bottom_left(), padded_rect.top_left(), border_color, border_width); + } + } +} + +HitTestResult LayoutBox::hit_test(const Point& position) const +{ + // FIXME: It would be nice if we could confidently skip over hit testing + // parts of the layout tree, but currently we can't just check + // m_rect.contains() since inline text rects can't be trusted.. + HitTestResult result { m_rect.contains(position) ? this : nullptr }; + for_each_child([&](auto& child) { + auto child_result = child.hit_test(position); + if (child_result.layout_node) + result = child_result; + }); + return result; +} + +void LayoutBox::set_needs_display() +{ + auto* frame = document().frame(); + ASSERT(frame); + + if (!is_inline()) { + const_cast<Frame*>(frame)->set_needs_display(rect()); + return; + } + + for_each_fragment_of_this([&](auto& fragment) { + if (&fragment.layout_node() == this || is_ancestor_of(fragment.layout_node())) { + const_cast<Frame*>(frame)->set_needs_display(fragment.rect()); + } + return IterationDecision::Continue; + }); +} |