src/plugins/litehtml_viewer/litehtml/document_container.h

   1 #ifndef LH_DOCUMENT_CONTAINER_H
   2 #define LH_DOCUMENT_CONTAINER_H
   3
   4 #include "os_types.h"
   5 #include "types.h"
   6 #include "web_color.h"
   7 #include "background.h"
   8 #include "borders.h"
   9 #include "element.h"
  10 #include <memory>
  11 #include <functional>
  12
  13 namespace litehtml
  14 {
  15         struct list_marker
  16         {
  17                 string                  image;
  18                 const char*             baseurl;
  19                 list_style_type marker_type;
  20                 web_color               color;
  21                 position                pos;
  22                 int                             index;
  23                 uint_ptr                font;
  24         };
  25
  26         // call back interface to draw text, images and other elements
  27         class document_container
  28         {
  29         public:
  30                 virtual litehtml::uint_ptr      create_font(const char* faceName, int size, int weight, litehtml::font_style italic, unsigned int decoration, litehtml::font_metrics* fm) = 0;
  31                 virtual void                            delete_font(litehtml::uint_ptr hFont) = 0;
  32                 virtual int                                     text_width(const char* text, litehtml::uint_ptr hFont) = 0;
  33                 virtual void                            draw_text(litehtml::uint_ptr hdc, const char* text, litehtml::uint_ptr hFont, litehtml::web_color color, const litehtml::position& pos) = 0;
  34                 virtual int                                     pt_to_px(int pt) const = 0;
  35                 virtual int                                     get_default_font_size() const = 0;
  36                 virtual const char*                     get_default_font_name() const = 0;
  37                 virtual void                            draw_list_marker(litehtml::uint_ptr hdc, const litehtml::list_marker& marker) = 0;
  38                 virtual void                            load_image(const char* src, const char* baseurl, bool redraw_on_ready) = 0;
  39                 virtual void                            get_image_size(const char* src, const char* baseurl, litehtml::size& sz) = 0;
  40                 // Note: regular <img> images are also drawn with draw_background
  41                 // bg is guaranteed to have at least one item.
  42                 // backgrounds in bg are in CSS order - the last one is the farthest from the user.
  43                 // only the last background has valid background-color.
  44                 virtual void                            draw_background(litehtml::uint_ptr hdc, const std::vector<litehtml::background_paint>& bg) = 0;
  45                 virtual void                            draw_borders(litehtml::uint_ptr hdc, const litehtml::borders& borders, const litehtml::position& draw_pos, bool root) = 0;
  46
  47                 virtual void                            set_caption(const char* caption) = 0;
  48                 virtual void                            set_base_url(const char* base_url) = 0;
  49                 virtual void                            link(const std::shared_ptr<litehtml::document>& doc, const litehtml::element::ptr& el) = 0;
  50                 virtual void                            on_anchor_click(const char* url, const litehtml::element::ptr& el) = 0;
  51                 virtual void                            set_cursor(const char* cursor) = 0;
  52                 virtual void                            transform_text(litehtml::string& text, litehtml::text_transform tt) = 0;
  53                 virtual void                            import_css(litehtml::string& text, const litehtml::string& url, litehtml::string& baseurl) = 0;
  54                 virtual void                            set_clip(const litehtml::position& pos, const litehtml::border_radiuses& bdr_radius) = 0;
  55                 virtual void                            del_clip() = 0;
  56                 virtual void                            get_client_rect(litehtml::position& client) const = 0;
  57                 virtual litehtml::element::ptr  create_element( const char* tag_name,
  58                                                                                                                 const litehtml::string_map& attributes,
  59                                                                                                                 const std::shared_ptr<litehtml::document>& doc) = 0;
  60
  61                 virtual void                            get_media_features(litehtml::media_features& media) const = 0;
  62                 virtual void                            get_language(litehtml::string& language, litehtml::string& culture) const = 0;
  63                 virtual litehtml::string        resolve_color(const litehtml::string& /*color*/) const { return litehtml::string(); }
  64                 virtual void                            split_text(const char* text, const std::function<void(const char*)>& on_word, const std::function<void(const char*)>& on_space);
  65
  66         protected:
  67                 ~document_container() = default;
  68         };
  69 }
  70
  71 #endif  // LH_DOCUMENT_CONTAINER_H