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7c9f46acd2
Instead of using fixed size arrays, use a new cylinder_table structure. The code copies the weightsystem code, but is significantly more complex because cylinders are such an integral part of the core. Two functions to access the cylinders were added: get_cylinder() and get_or_create_cylinder() The former does a simple array access and supposes that the cylinder exists. The latter is used by the parser(s) and if a cylinder with the given id does not exist, cylinders up to that id are generated. One point will make C programmers cringe: the cylinder structure is passed by value. This is due to the way the table-macros work. A refactoring of the table macros is planned. It has to be noted that the size of a cylinder_t is 64 bytes, i.e. 8 long words on a 64-bit architecture, so passing on the stack is probably not even significantly slower than passing as reference. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#include "profile-widget/tankitem.h"
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#include "qt-models/diveplotdatamodel.h"
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#include "profile-widget/divetextitem.h"
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#include "core/profile.h"
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#include <QPen>
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static const qreal height = 3.0;
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TankItem::TankItem(QObject *parent) :
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QObject(parent),
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plotEndTime(-1)
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{
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QColor red(PERSIANRED1);
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QColor blue(AIR_BLUE);
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QColor yellow(NITROX_YELLOW);
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QColor green(NITROX_GREEN);
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QLinearGradient nitroxGradient(QPointF(0, 0), QPointF(0, height));
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nitroxGradient.setColorAt(0.0, green);
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nitroxGradient.setColorAt(0.49, green);
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nitroxGradient.setColorAt(0.5, yellow);
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nitroxGradient.setColorAt(1.0, yellow);
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nitrox = nitroxGradient;
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oxygen = green;
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QLinearGradient trimixGradient(QPointF(0, 0), QPointF(0, height));
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trimixGradient.setColorAt(0.0, green);
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trimixGradient.setColorAt(0.49, green);
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trimixGradient.setColorAt(0.5, red);
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trimixGradient.setColorAt(1.0, red);
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trimix = trimixGradient;
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air = blue;
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hAxis = nullptr;
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}
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TankItem::~TankItem()
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{
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free(pInfoEntry);
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}
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void TankItem::setData(DivePlotDataModel *model, struct plot_info *plotInfo, struct dive *d)
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{
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// If there is nothing to plot, quit early.
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if (plotInfo->nr <= 0) {
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plotEndTime = -1;
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return;
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}
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// Find correct end of the dive plot for correct end of the tankbar.
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struct plot_data *last_entry = &plotInfo->entry[plotInfo->nr - 1];
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plotEndTime = last_entry->sec;
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// Stay informed of changes to the tanks.
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connect(model, SIGNAL(dataChanged(QModelIndex, QModelIndex)), this, SLOT(modelDataChanged(QModelIndex, QModelIndex)), Qt::UniqueConnection);
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modelDataChanged();
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}
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void TankItem::createBar(int startTime, int stopTime, struct gasmix gas)
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{
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qreal x = hAxis->posAtValue(startTime);
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qreal w = hAxis->posAtValue(stopTime) - hAxis->posAtValue(startTime);
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// pick the right gradient, size, position and text
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QGraphicsRectItem *rect = new QGraphicsRectItem(x, 0, w, height, this);
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if (gasmix_is_air(gas))
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rect->setBrush(air);
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else if (gas.he.permille)
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rect->setBrush(trimix);
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else if (gas.o2.permille == 1000)
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rect->setBrush(oxygen);
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else
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rect->setBrush(nitrox);
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rect->setPen(QPen(QBrush(), 0.0)); // get rid of the thick line around the rectangle
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rects.push_back(rect);
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DiveTextItem *label = new DiveTextItem(rect);
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label->setText(gasname(gas));
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label->setBrush(Qt::black);
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label->setPos(x + 1, 0);
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label->setAlignment(Qt::AlignBottom | Qt::AlignRight);
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#ifdef SUBSURFACE_MOBILE
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label->setPos(x + 1, -2.5);
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#endif
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label->setZValue(101);
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}
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void TankItem::modelDataChanged(const QModelIndex&, const QModelIndex&)
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{
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// We don't have enougth data to calculate things, quit.
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if (plotEndTime < 0)
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return;
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// remove the old rectangles
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qDeleteAll(rects);
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rects.clear();
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// get the information directly from the displayed_dive (the dc always exists)
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struct divecomputer *dc = get_dive_dc(&displayed_dive, dc_number);
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// start with the first gasmix and at the start of the dive
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int cyl = explicit_first_cylinder(&displayed_dive, dc);
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struct gasmix gasmix = displayed_dive.cylinders.cylinders[cyl].gasmix;
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int startTime = 0;
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// work through all the gas changes and add the rectangle for each gas while it was used
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const struct event *ev = get_next_event(dc->events, "gaschange");
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while (ev && (int)ev->time.seconds < plotEndTime) {
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createBar(startTime, ev->time.seconds, gasmix);
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startTime = ev->time.seconds;
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gasmix = get_gasmix_from_event(&displayed_dive, ev);
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ev = get_next_event(ev->next, "gaschange");
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}
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createBar(startTime, plotEndTime, gasmix);
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}
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void TankItem::setHorizontalAxis(DiveCartesianAxis *horizontal)
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{
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hAxis = horizontal;
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connect(hAxis, SIGNAL(sizeChanged()), this, SLOT(modelDataChanged()));
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modelDataChanged();
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}
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