1 /* 2 * Claws Mail -- A GTK+ based, lightweight, and fast e-mail client 3 * Copyright(C) 2019 the Claws Mail Team 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 3 of the License, or 8 * (at your option) any later version. 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * You should have received a copy of the GNU General Public License 14 * along with this program; if not, write tothe Free Software 15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 16 */ 17 18 #pragma once 19 20 #include <vector> 21 #include <list> 22 #include <string> 23 24 #include <cairo.h> 25 #include <gtk/gtk.h> 26 #include <fontconfig/fontconfig.h> 27 28 #include "litehtml/litehtml.h" 29 30 struct cairo_clip_box 31 { 32 typedef std::vector<cairo_clip_box> vector; 33 litehtml::position box; 34 litehtml::border_radiuses radius; 35 cairo_clip_boxcairo_clip_box36 cairo_clip_box(const litehtml::position& vBox, litehtml::border_radiuses vRad) 37 { 38 box = vBox; 39 radius = vRad; 40 } 41 cairo_clip_boxcairo_clip_box42 cairo_clip_box(const cairo_clip_box& val) 43 { 44 box = val.box; 45 radius = val.radius; 46 } 47 cairo_clip_box& operator=(const cairo_clip_box& val) 48 { 49 box = val.box; 50 radius = val.radius; 51 return *this; 52 } 53 }; 54 55 class container_linux : public litehtml::document_container 56 { 57 typedef std::pair<litehtml::tstring, GdkPixbuf*> image; 58 typedef std::list<image> images_map; 59 60 protected: 61 cairo_surface_t* m_temp_surface; 62 cairo_t* m_temp_cr; 63 images_map m_images; 64 GRecMutex m_images_lock; 65 cairo_clip_box::vector m_clips; 66 67 public: 68 container_linux(void); 69 virtual ~container_linux(void); 70 71 virtual int pt_to_px(int pt) override; 72 virtual void load_image(const litehtml::tchar_t* src, const litehtml::tchar_t* baseurl, bool redraw_on_ready) override; 73 virtual void get_image_size(const litehtml::tchar_t* src, const litehtml::tchar_t* baseurl, litehtml::size& sz) override; 74 virtual void draw_background(litehtml::uint_ptr hdc, const litehtml::background_paint& bg) override; 75 virtual void draw_borders(litehtml::uint_ptr hdc, const litehtml::borders& borders, const litehtml::position& draw_pos, bool root) override; 76 virtual void draw_list_marker(litehtml::uint_ptr hdc, const litehtml::list_marker& marker) override; 77 virtual std::shared_ptr<litehtml::element> create_element(const litehtml::tchar_t *tag_name, 78 const litehtml::string_map &attributes, 79 const std::shared_ptr<litehtml::document> &doc) override; 80 virtual void get_media_features(litehtml::media_features& media) const override; 81 virtual void get_language(litehtml::tstring& language, litehtml::tstring & culture) const override; 82 virtual void link(const std::shared_ptr<litehtml::document> &ptr, const litehtml::element::ptr& el) override; 83 84 85 virtual void transform_text(litehtml::tstring& text, litehtml::text_transform tt) override; 86 virtual void set_clip(const litehtml::position& pos, const litehtml::border_radiuses& bdr_radius, bool valid_x, bool valid_y) override; 87 virtual void del_clip() override; 88 89 virtual void make_url( const litehtml::tchar_t* url, const litehtml::tchar_t* basepath, litehtml::tstring& out ); 90 91 void clear_images(); 92 93 /* Trim down images cache to less than desired_size [bytes], 94 * starting from oldest stored. */ 95 gint clear_images(gint desired_size); 96 97 void add_image_to_cache(const gchar *url, GdkPixbuf *image); 98 virtual void redraw(gboolean force_render) = 0; 99 virtual GdkPixbuf *get_local_image(const litehtml::tstring url) const = 0; 100 101 protected: 102 virtual void draw_ellipse(cairo_t* cr, int x, int y, int width, int height, const litehtml::web_color& color, int line_width); 103 virtual void fill_ellipse(cairo_t* cr, int x, int y, int width, int height, const litehtml::web_color& color); 104 virtual void rounded_rectangle( cairo_t* cr, const litehtml::position &pos, const litehtml::border_radiuses &radius ); 105 void apply_clip(cairo_t* cr); set_color(cairo_t * cr,litehtml::web_color color)106 void set_color(cairo_t* cr, litehtml::web_color color) { cairo_set_source_rgba(cr, color.red / 255.0, color.green / 255.0, color.blue / 255.0, color.alpha / 255.0); } 107 108 private: 109 void add_path_arc(cairo_t* cr, double x, double y, double rx, double ry, double a1, double a2, bool neg); 110 void draw_pixbuf(cairo_t* cr, const GdkPixbuf *bmp, int x, int y, int cx, int cy); 111 cairo_surface_t* surface_from_pixbuf(const GdkPixbuf *bmp); 112 void lock_images_cache(void); 113 void unlock_images_cache(void); 114 }; 115