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f713858ba4
The printFontScale is used to scale up fonts (and icons) when rendering to high-DPI devices. With absolute scaling, this will also be used to scale the size of different chart regions, line thickness, etc. Therefore, give it an more appropriate name. "Device pixel ratio", which is a well established term, seems to appropriately describe the concept. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#include "profile-widget/tankitem.h"
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#include "profile-widget/divecartesianaxis.h"
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#include "profile-widget/divetextitem.h"
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#include "core/dive.h"
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#include "core/event.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(const DiveCartesianAxis &axis, double dpr) :
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hAxis(axis),
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plotEndTime(-1),
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dpr(dpr)
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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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}
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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(dpr, 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::setData(const struct plot_info *plotInfo, const struct dive *d)
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{
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if (!d)
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return;
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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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const struct plot_data *last_entry = &plotInfo->entry[plotInfo->nr - 1];
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plotEndTime = last_entry->sec;
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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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// Bail if there are no cylinders
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if (d->cylinders.nr <= 0)
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return;
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// get the information directly from the displayed dive
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// (get_dive_dc() always returns a valid dive computer)
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const struct divecomputer *dc = get_dive_dc_const(d, 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(d, dc);
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struct gasmix gasmix = get_cylinder(d, 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(d, 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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