Diffstat (limited to 'core/apps/embeddedkonsole/TEScreen.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | core/apps/embeddedkonsole/TEScreen.cpp | 415 |
1 files changed, 248 insertions, 167 deletions
diff --git a/core/apps/embeddedkonsole/TEScreen.cpp b/core/apps/embeddedkonsole/TEScreen.cpp index a3d115d..50807d3 100644 --- a/core/apps/embeddedkonsole/TEScreen.cpp +++ b/core/apps/embeddedkonsole/TEScreen.cpp @@ -1,29 +1,30 @@ /* -------------------------------------------------------------------------- */ /* */ /* [TEScreen.C] 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> */ -/* */ +/* */ /* -------------------------------------------------------------------------- */ +// enhancements added by L.J. Potter <ljp@llornkcor.com> /*! \file */ /*! \class TEScreen \brief The image manipulated by the emulation. This class implements the operations of the terminal emulation framework. It is a complete passive device, driven by the emulation decoder (TEmuVT102). By this it forms in fact an ADT, that defines operations on a rectangular image. @@ -41,46 +42,49 @@ \sa TEWidget \sa VT102Emulation */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> // #include <kdebug.h> #include <assert.h> #include <string.h> #include <ctype.h> +#include <qpe/config.h> #include "TEScreen.h" #define HERE printf("%s(%d): here\n",__FILE__,__LINE__) //FIXME: this is emulation specific. Use FALSE for xterm, TRUE for ANSI. //FIXME: see if we can get this from terminfo. #define BS_CLEARS FALSE -#define loc(X,Y) ((Y)*columns+(X)) +#define loc(X,Y) ((Y) * columns + (X)) /*! creates a `TEScreen' of `lines' lines and `columns' columns. */ TEScreen::TEScreen(int lines, int columns) { this->lines = lines; this->columns = columns; - +// qDebug("Columns %d", columns); + image = (ca*) malloc(lines*columns*sizeof(ca)); tabstops = NULL; initTabStops(); histCursor = 0; + horzCursor = 0; clearSelection(); reset(); } /*! Destructor */ TEScreen::~TEScreen() { free(image); if (tabstops) free(tabstops); @@ -374,71 +378,67 @@ void TEScreen::restoreCursor() /*! Assing a new size to the screen. The topmost left position is maintained, while lower lines or right hand side columns might be removed or filled with spaces to fit the new size. The region setting is reset to the whole screen and the tab positions reinitialized. */ void TEScreen::resizeImage(int new_lines, int new_columns) { - - if (cuY > new_lines-1) - { // attempt to preserve focus and lines - bmargin = lines-1; //FIXME: margin lost - for (int i = 0; i < cuY-(new_lines-1); i++) - { - addHistLine(); scrollUp(0,1); + if (cuY > new_lines-1) { +// attempt to preserve focus and lines + bmargin = lines-1; //FIXME: margin lost + for (int i = 0; i < cuY-(new_lines-1); i++) { + addHistLine(); scrollUp(horzCursor,1); + } } - } - // make new image - ca* newimg = (ca*)malloc(new_lines*new_columns*sizeof(ca)); + // make new image + ca* newimg = (ca*)malloc( new_lines * new_columns * sizeof( ca)); - clearSelection(); - - // clear new image - for (int y = 0; y < new_lines; y++) - for (int x = 0; x < new_columns; x++) - { - newimg[y*new_columns+x].c = ' '; - newimg[y*new_columns+x].f = DEFAULT_FORE_COLOR; - newimg[y*new_columns+x].b = DEFAULT_BACK_COLOR; - newimg[y*new_columns+x].r = DEFAULT_RENDITION; - } - int cpy_lines = QMIN(new_lines, lines); - int cpy_columns = QMIN(new_columns,columns); - // copy to new image - for (int y = 0; y < cpy_lines; y++) - for (int x = 0; x < cpy_columns; x++) - { - newimg[y*new_columns+x].c = image[loc(x,y)].c; - newimg[y*new_columns+x].f = image[loc(x,y)].f; - newimg[y*new_columns+x].b = image[loc(x,y)].b; - newimg[y*new_columns+x].r = image[loc(x,y)].r; - } - free(image); - image = newimg; - lines = new_lines; - columns = new_columns; - cuX = QMIN(cuX,columns-1); - cuY = QMIN(cuY,lines-1); + clearSelection(); - // FIXME: try to keep values, evtl. - tmargin=0; - bmargin=lines-1; - initTabStops(); - clearSelection(); + // clear new image + for (int y = 0; y < new_lines; y++) + for (int x = 0; x < new_columns; x++) { + newimg[y*new_columns+x].c = ' '; + newimg[y*new_columns+x].f = DEFAULT_FORE_COLOR; + newimg[y*new_columns+x].b = DEFAULT_BACK_COLOR; + newimg[y*new_columns+x].r = DEFAULT_RENDITION; + } + int cpy_lines = QMIN(new_lines, lines); + int cpy_columns = QMIN(new_columns,columns); + // copy to new image + for (int y = 0; y < cpy_lines; y++) + for (int x = 0; x < cpy_columns; x++) { + newimg[y*new_columns+x].c = image[loc(x,y)].c; + newimg[y*new_columns+x].f = image[loc(x,y)].f; + newimg[y*new_columns+x].b = image[loc(x,y)].b; + newimg[y*new_columns+x].r = image[loc(x,y)].r; + } + free(image); + image = newimg; + lines = new_lines; + columns = new_columns; + cuX = QMIN(cuX,columns-1); + cuY = QMIN(cuY,lines-1); + + // FIXME: try to keep values, evtl. + tmargin=0; + bmargin=lines-1; + initTabStops(); + clearSelection(); } /* Clarifying rendition here and in TEWidget. currently, TEWidget's color table is 0 1 2 .. 9 10 .. 17 dft_fg, dft_bg, dim 0..7, intensive 0..7 cu_fg, cu_bg contain values 0..8; - 0 = default color - 1..8 = ansi specified color @@ -496,25 +496,26 @@ void TEScreen::effectiveRendition() /*! returns the image. Get the size of the image by \sa getLines and \sa getColumns. NOTE that the image returned by this function must later be freed. */ ca* TEScreen::getCookedImage() -{ int x,y; +{ + int x,y; ca* merged = (ca*)malloc(lines*columns*sizeof(ca)); ca dft(' ',DEFAULT_FORE_COLOR,DEFAULT_BACK_COLOR,DEFAULT_RENDITION); for (y = 0; (y < lines) && (y < (hist.getLines()-histCursor)); y++) { int len = QMIN(columns,hist.getLineLen(y+histCursor)); int yp = y*columns; int yq = (y+histCursor)*columns; hist.getCells(y+histCursor,0,len,merged+yp); for (x = len; x < columns; x++) merged[yp+x] = dft; for (x = 0; x < columns; x++) @@ -539,33 +540,97 @@ ca* TEScreen::getCookedImage() } } // evtl. inverse display if (getMode(MODE_Screen)) { int i,n = lines*columns; for (i = 0; i < n; i++) reverseRendition(&merged[i]); // for reverse display } if (getMode(MODE_Cursor) && (cuY+(hist.getLines()-histCursor) < lines)) // cursor visible reverseRendition(&merged[loc(cuX,cuY+(hist.getLines()-histCursor))]); return merged; + + /* + int x, y, z; + + ca* merged = (ca*)malloc( lines * columns * sizeof( ca)); + + ca dft(' ',DEFAULT_FORE_COLOR,DEFAULT_BACK_COLOR,DEFAULT_RENDITION); + +// qDebug("hist lines %d, historyCursor %d, minus %d ,lines %d, columns %d", +// hist.getLines(), histCursor, hist.getLines() - histCursor , lines, columns); + for (y = 0; (y < lines) && (y < ( hist.getLines() - histCursor )); y++) { + + int len = QMIN( columns, hist.getLineLen( y + histCursor) ); + int yp = y * columns; + int yq = ( y + histCursor) * columns; +// qDebug("horzCursor %d, columns %d, len %d", horzCursor, columns, len); +// qDebug("lineno %d, colno %d, count %d\n", y + histCursor, (horzCursor / 2), len ); + qDebug("Y %d", y); + hist.getCells( y + histCursor, (horzCursor / 2), len, merged + yp); + + for (x = len; x < columns; x++) + merged[yp + x] = dft; + for (x = 0; x < columns; x++) { + int p = x + yp; int q = x + yq; + if ( ( q >= sel_TL ) && ( q <= sel_BR ) ) + reverseRendition(&merged[p]); // for selection + } + } + + if (lines >= hist.getLines() - histCursor) { + for (y = ( hist.getLines() - histCursor); y < lines ; y++) { + int z = horzCursor; + int yp = y * columns; + int yq = ( y + histCursor) * columns; + int yr = ( y - hist.getLines() + histCursor) * columns; +// qDebug("y %d, yp %d, yq %d, columns %d, z cursor %d", y, yp, yq, columns, z); + for (x = 0; x < columns; x++) { + int p = x + yp; int q = x + yq; int r = (x + (horzCursor/2) ) + yr; + merged[p] = image[r]; + if ( q >= sel_TL && q <= sel_BR ) + reverseRendition( &merged[p]); // for selection + } + } + } + + +// evtl. inverse display + if (getMode(MODE_Screen)) + { int i, n = lines * columns; + for (i = 0; i < n; i++) + reverseRendition( &merged[i]); // for reverse display + } + if (getMode(MODE_Cursor) && ( cuY + ( hist.getLines() - histCursor) < lines)) // cursor visible + + reverseRendition( &merged[ loc( cuX, cuY + ( hist.getLines() - histCursor))] ); + + return merged; + */ + } /*! */ void TEScreen::reset() { + Config cfg("Konsole"); + cfg.setGroup("ScrollBar"); + if( !cfg.readBoolEntry("HorzScroll",0) ) setMode(MODE_Wrap ); saveMode(MODE_Wrap ); // wrap at end of margin + + resetMode(MODE_Origin); saveMode(MODE_Origin); // position refere to [1,1] resetMode(MODE_Insert); saveMode(MODE_Insert); // overstroke setMode(MODE_Cursor); // cursor visible resetMode(MODE_Screen); // screen not inverse resetMode(MODE_NewLine); tmargin=0; bmargin=lines-1; setDefaultRendition(); saveCursor(); @@ -649,72 +714,78 @@ void TEScreen::checkSelection(int from, int to) } } void TEScreen::ShowCharacter(unsigned short c) { // Note that VT100 does wrapping BEFORE putting the character. // This has impact on the assumption of valid cursor positions. // We indicate the fact that a newline has to be triggered by // putting the cursor one right to the last column of the screen. if (cuX >= columns) { - if (getMode(MODE_Wrap)) NextLine(); else cuX = columns-1; + if (getMode(MODE_Wrap)) NextLine(); else cuX = columns - 1; + // comment out for no wrap } if (getMode(MODE_Insert)) insertChars(1); - int i = loc(cuX,cuY); + int i = loc( cuX, cuY); checkSelection(i, i); // check if selection is still valid. image[i].c = c; image[i].f = ef_fg; image[i].b = ef_bg; image[i].r = ef_re; cuX += 1; } // Region commands ------------------------------------------------------------- /*! scroll up `n' lines within current region. The `n' new lines are cleared. \sa setRegion \sa scrollDown */ void TEScreen::scrollUp(int from, int n) { - if (n <= 0 || from + n > bmargin) return; + if (n <= 0 || from + n > bmargin) return; //FIXME: make sure `tmargin', `bmargin', `from', `n' is in bounds. - moveImage(loc(0,from),loc(0,from+n),loc(columns-1,bmargin)); - clearImage(loc(0,bmargin-n+1),loc(columns-1,bmargin),' '); + + moveImage( loc( 0, from), loc( 0, from + n), loc( columns - 1, bmargin)); + clearImage( loc( 0, bmargin - n + 1), loc( columns - 1, bmargin), ' '); } /*! scroll down `n' lines within current region. The `n' new lines are cleared. \sa setRegion \sa scrollUp */ void TEScreen::scrollDown(int from, int n) { + //FIXME: make sure `tmargin', `bmargin', `from', `n' is in bounds. - if (n <= 0) return; + if (n <= 0) return; if (from > bmargin) return; if (from + n > bmargin) n = bmargin - from; - moveImage(loc(0,from+n),loc(0,from),loc(columns-1,bmargin-n)); + + moveImage( loc(0,from+n), loc(0,from), loc(columns-1,bmargin-n)); clearImage(loc(0,from),loc(columns-1,from+n-1),' '); } + + /*! position the cursor to a specific line and column. */ void TEScreen::setCursorYX(int y, int x) { setCursorY(y); setCursorX(x); } /*! Set the cursor to x-th line. */ void TEScreen::setCursorX(int x) { if (x == 0) x = 1; // Default x -= 1; // Adjust @@ -862,25 +933,25 @@ void TEScreen::clearToEndOfLine() */ void TEScreen::clearToBeginOfLine() { clearImage(loc(0,cuY),loc(cuX,cuY),' '); } /*! clears entire current cursor line */ void TEScreen::clearEntireLine() { - clearImage(loc(0,cuY),loc(columns-1,cuY),' '); + clearImage( loc( 0, cuY),loc( columns - 1, cuY),' '); } // Rendition ------------------------------------------------------------------ /*! set rendition mode */ void TEScreen::setRendition(int re) { cu_re |= re; effectiveRendition(); @@ -979,139 +1050,139 @@ void TEScreen::setSelExtentXY(const int x, const int y) if (( x == columns )|| (x == 0)) l--; sel_TL = sel_begin; sel_BR = l; } } QString TEScreen::getSelText(const BOOL preserve_line_breaks) { if (sel_begin == -1) return QString::null; // Selection got clear while selecting. - int *m; // buffer to fill. - int s, d; // source index, dest. index. + int *m; // buffer to fill. + int s, d; // source index, dest. index. int hist_BR = loc(0, hist.getLines()); int hY = sel_TL / columns; int hX = sel_TL % columns; - int eol; // end of line + int eol; // end of line - s = sel_TL; // tracks copy in source. + s = sel_TL; // tracks copy in source. - // allocate buffer for maximum - // possible size... + // allocate buffer for maximum + // possible size... d = (sel_BR - sel_TL) / columns + 1; m = new int[d * (columns + 1) + 2]; d = 0; while (s <= sel_BR) { if (s < hist_BR) - { // get lines from hist.history - // buffer. - eol = hist.getLineLen(hY); - - if ((hY == (sel_BR / columns)) && - (eol >= (sel_BR % columns))) - { - eol = sel_BR % columns + 1; - } - - while (hX < eol) - { - m[d++] = hist.getCell(hY, hX++).c; - s++; - } - - if (s <= sel_BR) - { - // The line break handling - // It's different from the screen - // image case! - if (eol % columns == 0) - { - // That's either a completely filled - // line or an empty line - if (eol == 0) - { - m[d++] = '\n'; - } - else - { - // We have a full line. - // FIXME: How can we handle newlines - // at this position?! - } - } - else if ((eol + 1) % columns == 0) - { - // FIXME: We don't know if this was a - // space at the last position or a - // short line!! - m[d++] = ' '; - } - else - { - // We have a short line here. Put a - // newline or a space into the - // buffer. - m[d++] = preserve_line_breaks ? '\n' : ' '; - } - } - - hY++; - hX = 0; - s = hY * columns; - } + { // get lines from hist.history + // buffer. + eol = hist.getLineLen(hY); + + if ((hY == (sel_BR / columns)) && + (eol >= (sel_BR % columns))) + { + eol = sel_BR % columns + 1; + } + + while (hX < eol) + { + m[d++] = hist.getCell(hY, hX++).c; + s++; + } + + if (s <= sel_BR) + { + // The line break handling + // It's different from the screen + // image case! + if (eol % columns == 0) + { + // That's either a completely filled + // line or an empty line + if (eol == 0) + { + m[d++] = '\n'; + } + else + { + // We have a full line. + // FIXME: How can we handle newlines + // at this position?! + } + } + else if ((eol + 1) % columns == 0) + { + // FIXME: We don't know if this was a + // space at the last position or a + // short line!! + m[d++] = ' '; + } + else + { + // We have a short line here. Put a + // newline or a space into the + // buffer. + m[d++] = preserve_line_breaks ? '\n' : ' '; + } + } + + hY++; + hX = 0; + s = hY * columns; + } else - { // or from screen image. - eol = (s / columns + 1) * columns - 1; - - if (eol < sel_BR) - { - while ((eol > s) && - isspace(image[eol - hist_BR].c)) - { - eol--; - } - } - else - { - eol = sel_BR; - } - - while (s <= eol) - { - m[d++] = image[s++ - hist_BR].c; - } - - if (eol < sel_BR) - { - // eol processing see below ... - if ((eol + 1) % columns == 0) - { - if (image[eol - hist_BR].c == ' ') - { - m[d++] = ' '; - } - } - else - { - m[d++] = ((preserve_line_breaks || - ((eol % columns) == 0)) ? - '\n' : ' '); - } - } - - s = (eol / columns + 1) * columns; + { // or from screen image. + eol = (s / columns + 1) * columns - 1; + + if (eol < sel_BR) + { + while ((eol > s) && + isspace(image[eol - hist_BR].c)) + { + eol--; + } + } + else + { + eol = sel_BR; + } + + while (s <= eol) + { + m[d++] = image[s++ - hist_BR].c; + } + + if (eol < sel_BR) + { + // eol processing see below ... + if ((eol + 1) % columns == 0) + { + if (image[eol - hist_BR].c == ' ') + { + m[d++] = ' '; + } + } + else + { + m[d++] = ((preserve_line_breaks || + ((eol % columns) == 0)) ? + '\n' : ' '); + } + } + + s = (eol / columns + 1) * columns; } } QChar* qc = new QChar[d]; for (int i = 0; i < d; i++) { qc[i] = m[i]; } QString res(qc, d); @@ -1120,74 +1191,84 @@ QString TEScreen::getSelText(const BOOL preserve_line_breaks) return res; } /* above ... end of line processing for selection -- psilva cases: 1) (eol+1)%columns == 0 --> the whole line is filled. If the last char is a space, insert (preserve) space. otherwise leave the text alone, so that words that are broken by linewrap are preserved. FIXME: - * this suppresses \n for command output that is - sized to the exact column width of the screen. + * this suppresses \n for command output that is + sized to the exact column width of the screen. 2) eol%columns == 0 --> blank line. insert a \n unconditionally. Do it either you would because you are in preserve_line_break mode, or because it's an ASCII paragraph delimiter, so even when not preserving line_breaks, you want to preserve paragraph breaks. -3) else --> partially filled line +3) else --> partially filled line insert a \n in preserve line break mode, else a space The space prevents concatenation of the last word of one line with the first of the next. */ void TEScreen::addHistLine() { assert(hasScroll() || histCursor == 0); // add to hist buffer // we have to take care about scrolling, too... - if (hasScroll()) - { ca dft; + if (hasScroll()){ + ca dft; - int end = columns-1; + int end = columns - 1; while (end >= 0 && image[end] == dft) end -= 1; - hist.addCells(image,end+1); + hist.addCells( image, end + 1); hist.addLine(); // adjust history cursor - histCursor += (hist.getLines()-1 == histCursor); + histCursor += ( hist.getLines() - 1 == histCursor); } if (!hasScroll()) histCursor = 0; //FIXME: a poor workaround } void TEScreen::setHistCursor(int cursor) { histCursor = cursor; //FIXME:rangecheck } +void TEScreen::setHorzCursor(int cursor) +{ + horzCursor = cursor; +} + int TEScreen::getHistCursor() { return histCursor; } +int TEScreen::getHorzCursor() +{ + return horzCursor; +} + int TEScreen::getHistLines() { return hist.getLines(); } void TEScreen::setScroll(bool on) { histCursor = 0; clearSelection(); hist.setScroll(on); } |