TerminalPanel.h

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#pragma once
 
#if EDITOR
 
#include "CommandHistory.h"
#include "TerminalSession.h"
 
#include <set>
#include <string>
 
struct ImGuiInputTextCallbackData;
 
class TerminalPanel
{
public:
    void DrawContent();
    void Tick();
    void Shutdown();
 
    bool mVisible = false;
 
private:
    void DrawToolbar();
    void DrawTuiKeys();
    void DrawOutput();
    void DrawInput();
    void OnSubmit();
    void ForwardKeysToProcess();
 
    static int InputCallback(ImGuiInputTextCallbackData* data);
 
    TerminalSession mSession;
    CommandHistory  mHistory;
 
    char mInputBuffer[2048] = {};
    bool mAutoScroll = true;
    bool mFocusInputNextFrame = false;
    bool mFocusOutputNextFrame = false;
    bool mPrevVisible = false;
    bool mLaunchedThisOpen = false;
 
    bool mScrollToBottom = false;
 
    // Multi-row selection in the output area. mSelectedLineIndices holds
    // the set of currently-selected (zero-based) row indices. mSelectionAnchor
    // is the row index of the most recent plain click and acts as the anchor
    // for shift-click range extension. mSelectionLineCount is the row count
    // observed on the previous frame and is used to drop indices that fell
    // off the top of the bounded ring buffer.
    std::set<int> mSelectedLineIndices;
    int mSelectionAnchor = -1;
    int mSelectionLineCount = 0;
 
    // Build a newline-joined string of the rows in mSelectedLineIndices,
    // walking the buffer in row order so the result matches on-screen order.
    // Not const because TerminalSession::GetBuffer() is non-const.
    std::string BuildSelectedLinesText();
 
    // Build a newline-joined string of every entry in the buffer.
    std::string BuildAllLinesText();
};
 
TerminalPanel* GetTerminalPanel();
 
#endif