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LibVT: Add scrollback history to VT::Terminal

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The default (hard-coded) history size is 500 lines. When the history is
altered, the TerminalClient is notified via terminal_history_changed().
This commit is contained in:
Andreas Kling 2019-08-19 19:07:52 +02:00
parent a5cdd0afa5
commit 462336ed49
2 changed files with 12 additions and 0 deletions
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5
Libraries/LibVT/Terminal.h
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@ -14,6 +14,7 @@ public:
virtual void beep() = 0;
virtual void set_window_title(const StringView&) = 0;
virtual void terminal_did_resize(u16 columns, u16 rows) = 0;
virtual void terminal_history_changed() = 0;
};
struct Attribute {
@ -98,6 +99,9 @@ public:
return m_lines[index];
}
int max_history_size() const { return 500; }
const NonnullOwnPtrVector<Line>& history() const { return m_history; }
private:
typedef Vector<unsigned, 4> ParamVector;
@ -137,6 +141,7 @@ private:
TerminalClient& m_client;
NonnullOwnPtrVector<Line> m_history;
NonnullOwnPtrVector<Line> m_lines;
int m_scroll_region_top { 0 };