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Diffstat (limited to 'src/chart.cpp')
| -rw-r--r-- | src/chart.cpp | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/chart.cpp b/src/chart.cpp new file mode 100644 index 0000000..8af9d1e --- /dev/null +++ b/src/chart.cpp @@ -0,0 +1,65 @@ +/*************************************************************************** +* Copyright (C) 2005 by Hugo Parente Lima * +* [email protected] * +* * +* 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. * +***************************************************************************/ + +#include "chart.h" +#include <tqpainter.h> +#include <tqbrush.h> + +Chart::Chart(TQWidget* parent, const double* uploadBuffer, const double* downloadBuffer, int bufferSize, const int* ptr, const double* maxspeed) : TQWidget(parent), mUplBuffer(uploadBuffer), mDldBuffer(downloadBuffer), mBufferSize(bufferSize), mPtr(ptr), mMaxSpeed(maxspeed) { + setWFlags(TQt::WNoAutoErase); + setSizePolicy(TQSizePolicy::Expanding, TQSizePolicy::Expanding); +} + +void Chart::paintEvent(TQPaintEvent*) { + TQPainter paint(this); + paint.setBackgroundColor(TQt::black); + paint.setBackgroundMode(Qt::OpaqueMode); + TQBrush brush(TQColor(0x33, 0x33, 0x33), CrossPattern); + paint.fillRect(0, 0, width(), height(), brush); + + const double step = width()/double(mBufferSize); + const int HEIGHT = height() - 1; + + int x; + int lastX = x = width(); + int lastRxY = HEIGHT - int(HEIGHT * (mDldBuffer[*mPtr]/(*mMaxSpeed))); + int lastTxY = HEIGHT - int(HEIGHT * (mUplBuffer[*mPtr]/(*mMaxSpeed))); + + int count = 0; + for (int i = *mPtr; count < mBufferSize; i--) { + if (i < 0) + i = mBufferSize-1; + int rxY = HEIGHT - int(HEIGHT * (mDldBuffer[i]/(*mMaxSpeed))); + int txY = HEIGHT - int(HEIGHT * (mUplBuffer[i]/(*mMaxSpeed))); + paint.setPen(TQt::green); + paint.drawLine(lastX, lastRxY, x, rxY); + paint.setPen(TQt::red); + paint.drawLine(lastX, lastTxY, x, txY); + //tqDebug("%d => %d", i, int(mSpeedHistoryRx[i])); + lastX = x; + lastRxY = rxY; + lastTxY = txY; + + count++; + x = width() - int(step*(count+1)); + + } +} + |