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66 lines
2.9 KiB
66 lines
2.9 KiB
/***************************************************************************
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* Copyright (C) 2005 by Hugo Parente Lima *
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* hugo_pl@users.sourceforge.net *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include "chart.h"
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#include <tqpainter.h>
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#include <tqbrush.h>
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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) {
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setWFlags(TQt::WNoAutoErase);
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setSizePolicy(TQSizePolicy::Expanding, TQSizePolicy::Expanding);
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}
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void Chart::paintEvent(TQPaintEvent*) {
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TQPainter paint(this);
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paint.setBackgroundColor(TQt::black);
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paint.setBackgroundMode(Qt::OpaqueMode);
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TQBrush brush(TQColor(0x33, 0x33, 0x33), CrossPattern);
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paint.fillRect(0, 0, width(), height(), brush);
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const double step = width()/double(mBufferSize);
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const int HEIGHT = height() - 1;
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int x;
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int lastX = x = width();
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int lastRxY = HEIGHT - int(HEIGHT * (mDldBuffer[*mPtr]/(*mMaxSpeed)));
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int lastTxY = HEIGHT - int(HEIGHT * (mUplBuffer[*mPtr]/(*mMaxSpeed)));
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int count = 0;
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for (int i = *mPtr; count < mBufferSize; i--) {
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if (i < 0)
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i = mBufferSize-1;
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int rxY = HEIGHT - int(HEIGHT * (mDldBuffer[i]/(*mMaxSpeed)));
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int txY = HEIGHT - int(HEIGHT * (mUplBuffer[i]/(*mMaxSpeed)));
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paint.setPen(TQt::green);
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paint.drawLine(lastX, lastRxY, x, rxY);
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paint.setPen(TQt::red);
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paint.drawLine(lastX, lastTxY, x, txY);
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//tqDebug("%d => %d", i, int(mSpeedHistoryRx[i]));
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lastX = x;
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lastRxY = rxY;
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lastTxY = txY;
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count++;
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x = width() - int(step*(count+1));
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}
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}
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