Diffstat (limited to 'core/apps/embeddedkonsole/TEScreen.h') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | core/apps/embeddedkonsole/TEScreen.h | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/core/apps/embeddedkonsole/TEScreen.h b/core/apps/embeddedkonsole/TEScreen.h new file mode 100644 index 0000000..ba47ee5 --- a/dev/null +++ b/core/apps/embeddedkonsole/TEScreen.h @@ -0,0 +1,259 @@ +/* -------------------------------------------------------------------------- */ +/* */ +/* [te_screen.h] Screen Data Type */ +/* */ +/* -------------------------------------------------------------------------- */ +/* */ +/* Copyright (c) 1997,1998 by Lars Doelle <lars.doelle@on-line.de> */ +/* */ +/* This file is part of Konsole - an X terminal for KDE */ +/* */ +/* -------------------------------------------------------------------------- */ +/* */ +/* Ported Konsole to Qt/Embedded */ +/* */ +/* Copyright (C) 2000 by John Ryland <jryland@trolltech.com> */ +/* */ +/* -------------------------------------------------------------------------- */ + +#ifndef TESCREEN_H +#define TESCREEN_H + +/*! \file +*/ + +#include "TECommon.h" +#include "TEHistory.h" + +#define MODE_Origin 0 +#define MODE_Wrap 1 +#define MODE_Insert 2 +#define MODE_Screen 3 +#define MODE_Cursor 4 +#define MODE_NewLine 5 +#define MODES_SCREEN 6 + +/*! +*/ +struct ScreenParm +{ + int mode[MODES_SCREEN]; +}; + + +class TEScreen +{ +public: + TEScreen(int lines, int columns); + ~TEScreen(); + +public: // these are all `Screen' operations + // + // VT100/2 Operations ------------------ + // + // Cursor Movement + // + void cursorUp (int n); + void cursorDown (int n); + void cursorLeft (int n); + void cursorRight (int n); + void setCursorY (int y); + void setCursorX (int x); + void setCursorYX (int y, int x); + void setMargins (int t, int b); + // + // Cursor Movement with Scrolling + // + void NewLine (); + void NextLine (); + void index (); + void reverseIndex(); + // + void Return (); + void BackSpace (); + void Tabulate (); + // + // Editing + // + void eraseChars (int n); + void deleteChars (int n); + void insertChars (int n); + void deleteLines (int n); + void insertLines (int n); + // + // ------------------------------------- + // + void clearTabStops(); + void changeTabStop(bool set); + // + void resetMode (int n); + void setMode (int n); + void saveMode (int n); + void restoreMode (int n); + // + void saveCursor (); + void restoreCursor(); + // + // ------------------------------------- + // + void clearEntireScreen(); + void clearToEndOfScreen(); + void clearToBeginOfScreen(); + // + void clearEntireLine(); + void clearToEndOfLine(); + void clearToBeginOfLine(); + // + void helpAlign (); + // + // ------------------------------------- + // + void setRendition (int rendition); + void resetRendition(int rendition); + void setForeColor (int fgcolor); + void setBackColor (int bgcolor); + // + void setDefaultRendition(); + void setForeColorToDefault(); + void setBackColorToDefault(); + // + // ------------------------------------- + // + BOOL getMode (int n); + // + // only for report cursor position + // + int getCursorX(); + int getCursorY(); + // + // ------------------------------------- + // + void clear(); + void home(); + void reset(); + // + void ShowCharacter(unsigned short c); + // + void resizeImage(int new_lines, int new_columns); + // + ca* getCookedImage(); + + /*! return the number of lines. */ + int getLines() { return lines; } + /*! return the number of columns. */ + int getColumns() { return columns; } + + /*! set the position of the history cursor. */ + void setHistCursor(int cursor); + /*! return the position of the history cursor. */ + int getHistCursor(); + + int getHistLines (); + void setScroll(bool on); + bool hasScroll(); + + // + // Selection + // + void setSelBeginXY(const int x, const int y); + void setSelExtentXY(const int x, const int y); + void clearSelection(); + QString getSelText(const BOOL preserve_line_breaks); + + void checkSelection(int from, int to); + +private: // helper + + void clearImage(int loca, int loce, char c); + void moveImage(int dst, int loca, int loce); + + void scrollUp(int from, int i); + void scrollDown(int from, int i); + + void addHistLine(); + + void initTabStops(); + + void effectiveRendition(); + void reverseRendition(ca* p); + +private: + + /* + The state of the screen is more complex as one would + expect first. The screem does really do part of the + emulation providing state informations in form of modes, + margins, tabulators, cursor etc. + + Even more unexpected are variables to save and restore + parts of the state. + */ + + // screen image ---------------- + + int lines; + int columns; + ca *image; // [lines][columns] + + // history buffer --------------- + + int histCursor; // display position relative to start of the history buffer + HistoryScroll hist; + + // cursor location + + int cuX; + int cuY; + + // cursor color and rendition info + + UINT8 cu_fg; // foreground + UINT8 cu_bg; // background + UINT8 cu_re; // rendition + + // margins ---------------- + + int tmargin; // top margin + int bmargin; // bottom margin + + // states ---------------- + + ScreenParm currParm; + + // ---------------------------- + + bool* tabstops; + + // selection ------------------- + + int sel_begin; // The first location selected. + int sel_TL; // TopLeft Location. + int sel_BR; // Bottom Right Location. + + // effective colors and rendition ------------ + + UINT8 ef_fg; // These are derived from + UINT8 ef_bg; // the cu_* variables above + UINT8 ef_re; // to speed up operation + + // + // save cursor, rendition & states ------------ + // + + // cursor location + + int sa_cuX; + int sa_cuY; + + // rendition info + + UINT8 sa_cu_re; + UINT8 sa_cu_fg; + UINT8 sa_cu_bg; + + // modes + + ScreenParm saveParm; +}; + +#endif // TESCREEN_H |