mirror of
https://github.com/polybar/polybar.git
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135 lines
3.4 KiB
C++
135 lines
3.4 KiB
C++
#pragma once
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#include <cairo/cairo.h>
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#include <bitset>
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#include <memory>
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#include "cairo/fwd.hpp"
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#include "common.hpp"
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#include "components/renderer_interface.hpp"
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#include "components/types.hpp"
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#include "events/signal_fwd.hpp"
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#include "events/signal_receiver.hpp"
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#include "x11/extensions/fwd.hpp"
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#include "x11/types.hpp"
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POLYBAR_NS
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// fwd {{{
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class connection;
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class config;
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class logger;
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class background_manager;
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class bg_slice;
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// }}}
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using std::map;
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struct alignment_block {
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cairo_pattern_t* pattern;
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/**
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* The x-position where the next thing will be rendered.
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*/
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double x;
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double y;
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/**
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* The total width of this block.
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*
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* This is always >= x, but may be larger because a negative offset may
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* decrease x, but the width doesn't change.
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*/
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double width;
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};
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class renderer : public renderer_interface,
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public signal_receiver<SIGN_PRIORITY_RENDERER, signals::ui::request_snapshot> {
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public:
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using make_type = unique_ptr<renderer>;
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static make_type make(const bar_settings& bar, tags::action_context& action_ctxt);
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explicit renderer(connection& conn, signal_emitter& sig, const config&, const logger& logger, const bar_settings& bar,
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background_manager& background_manager, tags::action_context& action_ctxt);
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~renderer();
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xcb_window_t window() const;
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void begin(xcb_rectangle_t rect);
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void end();
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void flush();
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void render_offset(const tags::context& ctxt, const extent_val offset) override;
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void render_text(const tags::context& ctxt, const string&&) override;
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void change_alignment(const tags::context& ctxt) override;
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double get_x(const tags::context& ctxt) const override;
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double get_alignment_start(const alignment align) const override;
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void apply_tray_position(const tags::context& context) override;
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protected:
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void fill_background();
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void fill_overline(rgba color, double x, double w);
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void fill_underline(rgba color, double x, double w);
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void fill_borders();
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void draw_offset(rgba color, double x, double w);
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double block_x(alignment a) const;
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double block_y(alignment a) const;
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double block_w(alignment a) const;
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double block_h(alignment a) const;
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void increase_x(double dx);
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void flush(alignment a);
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void highlight_clickable_areas();
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bool on(const signals::ui::request_snapshot& evt) override;
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protected:
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struct reserve_area {
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edge side{edge::NONE};
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unsigned int size{0U};
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};
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private:
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connection& m_connection;
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signal_emitter& m_sig;
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const config& m_conf;
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const logger& m_log;
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const bar_settings& m_bar;
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std::shared_ptr<bg_slice> m_background;
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int m_depth{-1};
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xcb_window_t m_window;
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xcb_colormap_t m_colormap;
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xcb_visualtype_t* m_visual;
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xcb_gcontext_t m_gcontext;
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xcb_pixmap_t m_pixmap;
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xcb_rectangle_t m_rect{0, 0, 0U, 0U};
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reserve_area m_cleararea{};
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// bool m_autosize{false};
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unique_ptr<cairo::context> m_context;
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unique_ptr<cairo::xcb_surface> m_surface;
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map<alignment, alignment_block> m_blocks;
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cairo_pattern_t* m_cornermask{};
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cairo_operator_t m_comp_bg{CAIRO_OPERATOR_SOURCE};
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cairo_operator_t m_comp_fg{CAIRO_OPERATOR_OVER};
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cairo_operator_t m_comp_ol{CAIRO_OPERATOR_OVER};
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cairo_operator_t m_comp_ul{CAIRO_OPERATOR_OVER};
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cairo_operator_t m_comp_border{CAIRO_OPERATOR_OVER};
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bool m_pseudo_transparency{false};
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alignment m_align;
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bool m_fixedcenter;
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string m_snapshot_dst;
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};
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POLYBAR_NS_END
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