src/plugins/litehtml_viewer/litehtml/render_inline_context.h

   1 #ifndef LITEHTML_RENDER_INLINE_CONTEXT_H
   2 #define LITEHTML_RENDER_INLINE_CONTEXT_H
   3
   4 #include "render_block.h"
   5
   6 namespace litehtml
   7 {
   8         /**
   9          * An inline formatting context is established by a block container box that contains no block-level boxes.
  10          * https://www.w3.org/TR/CSS22/visuren.html#inline-formatting
  11          */
  12         class render_item_inline_context : public render_item_block
  13         {
  14                 /**
  15                  *      Structure contains elements with display: inline
  16                  *      members:
  17                  *      - element:              render_item with display: inline
  18                  *      - boxes:                rectangles represented inline element content. There are can be many boxes if content
  19                  *                       is split into some lines
  20                  *      - start_box:    the start position of currently calculated box
  21                  */
  22                 struct inlines_item
  23                 {
  24                         std::shared_ptr<render_item> element;
  25                         position::vector boxes;
  26                         position        start_box;
  27
  28                         explicit inlines_item(const std::shared_ptr<render_item>& el) : element(el) {}
  29                 };
  30         protected:
  31                 std::vector<std::unique_ptr<litehtml::line_box> > m_line_boxes;
  32                 int m_max_line_width;
  33
  34                 int _render_content(int x, int y, bool second_pass, const containing_block_context &self_size, formatting_context* fmt_ctx) override;
  35                 void fix_line_width(element_float flt,
  36                                                         const containing_block_context &self_size, formatting_context* fmt_ctx) override;
  37
  38                 std::list<std::unique_ptr<line_box_item> > finish_last_box(bool end_of_render, const containing_block_context &self_size);
  39                 void place_inline(std::unique_ptr<line_box_item> item, const containing_block_context &self_size, formatting_context* fmt_ctx);
  40                 int new_box(const std::unique_ptr<line_box_item>& el, line_context& line_ctx, const containing_block_context &self_size, formatting_context* fmt_ctx);
  41                 void apply_vertical_align() override;
  42         public:
  43                 explicit render_item_inline_context(std::shared_ptr<element>  src_el) : render_item_block(std::move(src_el)), m_max_line_width(0)
  44                 {}
  45
  46                 std::shared_ptr<render_item> clone() override
  47                 {
  48                         return std::make_shared<render_item_inline_context>(src_el());
  49                 }
  50
  51                 int get_first_baseline() override;
  52                 int get_last_baseline() override;
  53         };
  54 }
  55
  56 #endif //LITEHTML_RENDER_INLINE_CONTEXT_H