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Diffstat (limited to 'client/browser/qtermwidget/src/ScreenWindow.cpp')
| -rw-r--r-- | client/browser/qtermwidget/src/ScreenWindow.cpp | 297 |
1 files changed, 0 insertions, 297 deletions
diff --git a/client/browser/qtermwidget/src/ScreenWindow.cpp b/client/browser/qtermwidget/src/ScreenWindow.cpp deleted file mode 100644 index 2eb1e84e..00000000 --- a/client/browser/qtermwidget/src/ScreenWindow.cpp +++ /dev/null @@ -1,297 +0,0 @@ -/* - Copyright (C) 2007 by Robert Knight <robertknight@gmail.com> - - Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - 02110-1301 USA. -*/ - -// Own -#include "ScreenWindow.h" - -// Qt -#include <QtCore> - -// Konsole -#include "Screen.h" - - -using namespace Konsole; - -ScreenWindow::ScreenWindow(QObject* parent) - : QObject(parent) - , _windowBuffer(0) - , _windowBufferSize(0) - , _bufferNeedsUpdate(true) - , _windowLines(1) - , _currentLine(0) - , _trackOutput(true) - , _scrollCount(0) -{ -} -ScreenWindow::~ScreenWindow() -{ - delete[] _windowBuffer; -} -void ScreenWindow::setScreen(Screen* screen) -{ - Q_ASSERT( screen ); - - _screen = screen; -} - -Screen* ScreenWindow::screen() const -{ - return _screen; -} - -Character* ScreenWindow::getImage() -{ - // reallocate internal buffer if the window size has changed - int size = windowLines() * windowColumns(); - if (_windowBuffer == 0 || _windowBufferSize != size) - { - delete[] _windowBuffer; - _windowBufferSize = size; - _windowBuffer = new Character[size]; - _bufferNeedsUpdate = true; - } - - if (!_bufferNeedsUpdate) - return _windowBuffer; - - _screen->getImage(_windowBuffer,size, - currentLine(),endWindowLine()); - - // this window may look beyond the end of the screen, in which - // case there will be an unused area which needs to be filled - // with blank characters - fillUnusedArea(); - - _bufferNeedsUpdate = false; - return _windowBuffer; -} - -void ScreenWindow::fillUnusedArea() -{ - int screenEndLine = _screen->getHistLines() + _screen->getLines() - 1; - int windowEndLine = currentLine() + windowLines() - 1; - - int unusedLines = windowEndLine - screenEndLine; - int charsToFill = unusedLines * windowColumns(); - - Screen::fillWithDefaultChar(_windowBuffer + _windowBufferSize - charsToFill,charsToFill); -} - -// return the index of the line at the end of this window, or if this window -// goes beyond the end of the screen, the index of the line at the end -// of the screen. -// -// when passing a line number to a Screen method, the line number should -// never be more than endWindowLine() -// -int ScreenWindow::endWindowLine() const -{ - return qMin(currentLine() + windowLines() - 1, - lineCount() - 1); -} -QVector<LineProperty> ScreenWindow::getLineProperties() -{ - QVector<LineProperty> result = _screen->getLineProperties(currentLine(),endWindowLine()); - - if (result.count() != windowLines()) - result.resize(windowLines()); - - return result; -} - -QString ScreenWindow::selectedText( bool preserveLineBreaks ) const -{ - return _screen->selectedText( preserveLineBreaks ); -} - -void ScreenWindow::getSelectionStart( int& column , int& line ) -{ - _screen->getSelectionStart(column,line); - line -= currentLine(); -} -void ScreenWindow::getSelectionEnd( int& column , int& line ) -{ - _screen->getSelectionEnd(column,line); - line -= currentLine(); -} -void ScreenWindow::setSelectionStart( int column , int line , bool columnMode ) -{ - _screen->setSelectionStart( column , qMin(line + currentLine(),endWindowLine()) , columnMode); - - _bufferNeedsUpdate = true; - emit selectionChanged(); -} - -void ScreenWindow::setSelectionEnd( int column , int line ) -{ - _screen->setSelectionEnd( column , qMin(line + currentLine(),endWindowLine()) ); - - _bufferNeedsUpdate = true; - emit selectionChanged(); -} - -bool ScreenWindow::isSelected( int column , int line ) -{ - return _screen->isSelected( column , qMin(line + currentLine(),endWindowLine()) ); -} - -void ScreenWindow::clearSelection() -{ - _screen->clearSelection(); - - emit selectionChanged(); -} - -void ScreenWindow::setWindowLines(int lines) -{ - Q_ASSERT(lines > 0); - _windowLines = lines; -} -int ScreenWindow::windowLines() const -{ - return _windowLines; -} - -int ScreenWindow::windowColumns() const -{ - return _screen->getColumns(); -} - -int ScreenWindow::lineCount() const -{ - return _screen->getHistLines() + _screen->getLines(); -} - -int ScreenWindow::columnCount() const -{ - return _screen->getColumns(); -} - -QPoint ScreenWindow::cursorPosition() const -{ - QPoint position; - - position.setX( _screen->getCursorX() ); - position.setY( _screen->getCursorY() ); - - return position; -} - -int ScreenWindow::currentLine() const -{ - return qBound(0,_currentLine,lineCount()-windowLines()); -} - -void ScreenWindow::scrollBy( RelativeScrollMode mode , int amount ) -{ - if ( mode == ScrollLines ) - { - scrollTo( currentLine() + amount ); - } - else if ( mode == ScrollPages ) - { - scrollTo( currentLine() + amount * ( windowLines() / 2 ) ); - } -} - -bool ScreenWindow::atEndOfOutput() const -{ - return currentLine() == (lineCount()-windowLines()); -} - -void ScreenWindow::scrollTo( int line ) -{ - int maxCurrentLineNumber = lineCount() - windowLines(); - line = qBound(0,line,maxCurrentLineNumber); - - const int delta = line - _currentLine; - _currentLine = line; - - // keep track of number of lines scrolled by, - // this can be reset by calling resetScrollCount() - _scrollCount += delta; - - _bufferNeedsUpdate = true; - - emit scrolled(_currentLine); -} - -void ScreenWindow::setTrackOutput(bool trackOutput) -{ - _trackOutput = trackOutput; -} - -bool ScreenWindow::trackOutput() const -{ - return _trackOutput; -} - -int ScreenWindow::scrollCount() const -{ - return _scrollCount; -} - -void ScreenWindow::resetScrollCount() -{ - _scrollCount = 0; -} - -QRect ScreenWindow::scrollRegion() const -{ - bool equalToScreenSize = windowLines() == _screen->getLines(); - - if ( atEndOfOutput() && equalToScreenSize ) - return _screen->lastScrolledRegion(); - else - return QRect(0,0,windowColumns(),windowLines()); -} - -void ScreenWindow::notifyOutputChanged() -{ - // move window to the bottom of the screen and update scroll count - // if this window is currently tracking the bottom of the screen - if ( _trackOutput ) - { - _scrollCount -= _screen->scrolledLines(); - _currentLine = qMax(0,_screen->getHistLines() - (windowLines()-_screen->getLines())); - } - else - { - // if the history is not unlimited then it may - // have run out of space and dropped the oldest - // lines of output - in this case the screen - // window's current line number will need to - // be adjusted - otherwise the output will scroll - _currentLine = qMax(0,_currentLine - - _screen->droppedLines()); - - // ensure that the screen window's current position does - // not go beyond the bottom of the screen - _currentLine = qMin( _currentLine , _screen->getHistLines() ); - } - - _bufferNeedsUpdate = true; - - emit outputChanged(); -} - -//#include "moc_ScreenWindow.cpp" |