878a7fbb90
It relied on the buffer first char being visible, and could trigger segfaults when that was not the case.
89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
#ifndef window_hh_INCLUDED
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#define window_hh_INCLUDED
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#include "client.hh"
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#include "display_buffer.hh"
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#include "highlighter_group.hh"
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#include "option_manager.hh"
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#include "optional.hh"
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#include "safe_ptr.hh"
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#include "scope.hh"
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namespace Kakoune
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{
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enum class Hook;
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// A Window is a view onto a Buffer
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class Window final : public SafeCountable, public Scope, private OptionManagerWatcher
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{
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public:
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Window(Buffer& buffer);
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~Window();
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const DisplayCoord& position() const { return m_position; }
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void set_position(DisplayCoord position);
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const DisplayCoord& dimensions() const { return m_dimensions; }
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void set_dimensions(DisplayCoord dimensions);
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void scroll(LineCount offset);
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void center_line(LineCount buffer_line);
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void display_line_at(LineCount buffer_line, LineCount display_line);
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void scroll(ColumnCount offset);
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void center_column(ColumnCount buffer_column);
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void display_column_at(ColumnCount buffer_column, ColumnCount display_column);
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const DisplayBuffer& update_display_buffer(const Context& context);
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Optional<DisplayCoord> display_position(BufferCoord coord) const;
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BufferCoord buffer_coord(DisplayCoord coord) const;
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Buffer& buffer() const { return *m_buffer; }
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bool needs_redraw(const Context& context) const;
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void force_redraw() { m_last_setup = Setup{}; }
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void set_client(Client* client) { m_client = client; }
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void clear_display_buffer();
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void run_resize_hook_ifn();
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DisplaySetup compute_display_setup(const Context& context) const;
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private:
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Window(const Window&) = delete;
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void on_option_changed(const Option& option) override;
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friend class ClientManager;
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void run_hook_in_own_context(Hook hook, StringView param,
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String client_name = "");
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SafePtr<Buffer> m_buffer;
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SafePtr<Client> m_client;
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DisplayCoord m_position;
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DisplayCoord m_dimensions;
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DisplayBuffer m_display_buffer;
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Highlighters m_builtin_highlighters;
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bool m_resize_hook_pending = false;
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struct Setup
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{
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DisplayCoord position;
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DisplayCoord dimensions;
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size_t timestamp;
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size_t faces_hash;
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size_t main_selection;
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Vector<BufferRange, MemoryDomain::Display> selections;
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};
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Setup build_setup(const Context& context) const;
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Setup m_last_setup;
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};
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}
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#endif // window_hh_INCLUDED
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