subsurface/profile-widget/divecartesianaxis.cpp
Berthold Stoeger db726862ae profile: move axes to ProfileScene
Part of separating the static (for printing, export) and
dynamic (UI) parts of the profile. This is still quite messy
with many direct accesses from the ProfileWidget.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2021-12-17 11:54:23 -08:00

429 lines
11 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#include "profile-widget/divecartesianaxis.h"
#include "profile-widget/divetextitem.h"
#include "core/qthelper.h"
#include "core/subsurface-string.h"
#include "core/subsurface-qt/divelistnotifier.h"
#include "qt-models/diveplotdatamodel.h"
#include "profile-widget/animationfunctions.h"
#include "profile-widget/divelineitem.h"
#include "profile-widget/profilescene.h"
QPen DiveCartesianAxis::gridPen() const
{
QPen pen;
pen.setColor(getColor(TIME_GRID));
/* cosmetic width() == 0 for lines in printMode
* having setCosmetic(true) and width() > 0 does not work when
* printing on OSX and Linux */
pen.setWidth(DiveCartesianAxis::printMode ? 0 : 2);
pen.setCosmetic(true);
return pen;
}
void DiveCartesianAxis::setFontLabelScale(qreal scale)
{
labelScale = scale;
changed = true;
}
void DiveCartesianAxis::setPrintMode(bool mode)
{
printMode = mode;
// update the QPen of all lines depending on printMode
QPen newPen = gridPen();
QColor oldColor = pen().brush().color();
newPen.setBrush(oldColor);
setPen(newPen);
Q_FOREACH (DiveLineItem *item, lines)
item->setPen(pen());
}
void DiveCartesianAxis::setMaximum(double maximum)
{
if (IS_FP_SAME(max, maximum))
return;
max = maximum;
changed = true;
}
void DiveCartesianAxis::setMinimum(double minimum)
{
if (IS_FP_SAME(min, minimum))
return;
min = minimum;
changed = true;
}
void DiveCartesianAxis::setTextColor(const QColor &color)
{
textColor = color;
}
DiveCartesianAxis::DiveCartesianAxis(double fontPrintScale, ProfileScene &scene) : QObject(),
QGraphicsLineItem(),
printMode(false),
scene(scene),
orientation(LeftToRight),
min(0),
max(0),
interval(1),
tick_size(0),
textVisibility(true),
lineVisibility(true),
labelScale(1.0),
line_size(1),
changed(true),
fontPrintScale(fontPrintScale)
{
setPen(gridPen());
}
DiveCartesianAxis::~DiveCartesianAxis()
{
}
void DiveCartesianAxis::setLineSize(qreal lineSize)
{
line_size = lineSize;
changed = true;
}
void DiveCartesianAxis::setOrientation(Orientation o)
{
orientation = o;
changed = true;
}
QColor DiveCartesianAxis::colorForValue(double) const
{
return QColor(Qt::black);
}
void DiveCartesianAxis::setTextVisible(bool arg1)
{
if (textVisibility == arg1) {
return;
}
textVisibility = arg1;
Q_FOREACH (DiveTextItem *item, labels) {
item->setVisible(textVisibility);
}
}
void DiveCartesianAxis::setLinesVisible(bool arg1)
{
if (lineVisibility == arg1) {
return;
}
lineVisibility = arg1;
Q_FOREACH (DiveLineItem *item, lines) {
item->setVisible(lineVisibility);
}
}
template <typename T>
void emptyList(QList<T *> &list, int steps, int speed)
{
while (list.size() > steps) {
T *removedItem = list.takeLast();
Animations::animDelete(removedItem, speed);
}
}
void DiveCartesianAxis::updateTicks(color_index_t color)
{
if (!changed && !printMode)
return;
QLineF m = line();
double stepsInRange = (max - min) / interval;
int steps = (int)stepsInRange;
double currValueText = min;
double currValueLine = min;
if (steps < 1)
return;
emptyList(labels, steps, scene.animSpeed);
emptyList(lines, steps, scene.animSpeed);
// Move the remaining ticks / text to their correct positions
// regarding the possible new values for the axis
qreal begin, stepSize;
if (orientation == TopToBottom) {
begin = m.y1();
stepSize = (m.y2() - m.y1());
} else if (orientation == BottomToTop) {
begin = m.y2();
stepSize = (m.y2() - m.y1());
} else if (orientation == LeftToRight) {
begin = m.x1();
stepSize = (m.x2() - m.x1());
} else /* if (orientation == RightToLeft) */ {
begin = m.x2();
stepSize = (m.x2() - m.x1());
}
stepSize /= stepsInRange;
for (int i = 0, count = labels.size(); i < count; i++, currValueText += interval) {
qreal childPos = (orientation == TopToBottom || orientation == LeftToRight) ?
begin + i * stepSize :
begin - i * stepSize;
labels[i]->setText(textForValue(currValueText));
if (orientation == LeftToRight || orientation == RightToLeft) {
Animations::moveTo(labels[i], scene.animSpeed, childPos, m.y1() + tick_size);
} else {
Animations::moveTo(labels[i], scene.animSpeed ,m.x1() - tick_size, childPos);
}
}
for (int i = 0, count = lines.size(); i < count; i++, currValueLine += interval) {
qreal childPos = (orientation == TopToBottom || orientation == LeftToRight) ?
begin + i * stepSize :
begin - i * stepSize;
if (orientation == LeftToRight || orientation == RightToLeft) {
Animations::moveTo(lines[i], scene.animSpeed, childPos, m.y1());
} else {
Animations::moveTo(lines[i], scene.animSpeed, m.x1(), childPos);
}
}
// Add's the rest of the needed Ticks / Text.
for (int i = labels.size(); i < steps; i++, currValueText += interval) {
qreal childPos;
if (orientation == TopToBottom || orientation == LeftToRight) {
childPos = begin + i * stepSize;
} else {
childPos = begin - i * stepSize;
}
DiveTextItem *label = new DiveTextItem(fontPrintScale, this);
label->setText(textForValue(currValueText));
label->setBrush(colorForValue(currValueText));
label->setScale(labelScale);
label->setZValue(1);
labels.push_back(label);
if (orientation == RightToLeft || orientation == LeftToRight) {
label->setAlignment(Qt::AlignBottom | Qt::AlignHCenter);
label->setPos(scene.sceneRect().width() + 10, m.y1() + tick_size); // position it outside of the scene;
Animations::moveTo(label, scene.animSpeed,childPos , m.y1() + tick_size);
} else {
label->setAlignment(Qt::AlignVCenter | Qt::AlignLeft);
label->setPos(m.x1() - tick_size, scene.sceneRect().height() + 10);
Animations::moveTo(label, scene.animSpeed, m.x1() - tick_size, childPos);
}
}
// Add's the rest of the needed Ticks / Text.
for (int i = lines.size(); i < steps; i++, currValueText += interval) {
qreal childPos;
if (orientation == TopToBottom || orientation == LeftToRight) {
childPos = begin + i * stepSize;
} else {
childPos = begin - i * stepSize;
}
DiveLineItem *line = new DiveLineItem(this);
QPen pen = gridPen();
pen.setBrush(getColor(color));
line->setPen(pen);
line->setZValue(0);
lines.push_back(line);
if (orientation == RightToLeft || orientation == LeftToRight) {
line->setLine(0, -line_size, 0, 0);
line->setPos(scene.sceneRect().width() + 10, m.y1()); // position it outside of the scene);
Animations::moveTo(line, scene.animSpeed, childPos, m.y1());
} else {
QPointF p1 = mapFromScene(3, 0);
QPointF p2 = mapFromScene(line_size, 0);
line->setLine(p1.x(), 0, p2.x(), 0);
line->setPos(m.x1(), scene.sceneRect().height() + 10);
Animations::moveTo(line, scene.animSpeed, m.x1(), childPos);
}
}
Q_FOREACH (DiveTextItem *item, labels)
item->setVisible(textVisibility);
Q_FOREACH (DiveLineItem *item, lines)
item->setVisible(lineVisibility);
changed = false;
}
void DiveCartesianAxis::setLine(const QLineF &line)
{
QGraphicsLineItem::setLine(line);
changed = true;
}
void DiveCartesianAxis::animateChangeLine(const QLineF &newLine)
{
setLine(newLine);
updateTicks();
sizeChanged();
}
QString DiveCartesianAxis::textForValue(double value) const
{
return QString("%L1").arg(value, 0, 'g', 4);
}
void DiveCartesianAxis::setTickSize(qreal size)
{
tick_size = size;
}
void DiveCartesianAxis::setTickInterval(double i)
{
interval = i;
}
qreal DiveCartesianAxis::valueAt(const QPointF &p) const
{
double fraction;
QLineF m = line();
QPointF relativePosition = p;
relativePosition -= pos(); // normalize p based on the axis' offset on screen
if (orientation == LeftToRight || orientation == RightToLeft)
fraction = (relativePosition.x() - m.x1()) / (m.x2() - m.x1());
else
fraction = (relativePosition.y() - m.y1()) / (m.y2() - m.y1());
if (orientation == RightToLeft || orientation == BottomToTop)
fraction = 1 - fraction;
return fraction * (max - min) + min;
}
qreal DiveCartesianAxis::posAtValue(qreal value) const
{
QLineF m = line();
QPointF p = pos();
double size = max - min;
// unused for now:
// double distanceFromOrigin = value - min;
double percent = IS_FP_SAME(min, max) ? 0.0 : (value - min) / size;
double realSize = orientation == LeftToRight || orientation == RightToLeft ?
m.x2() - m.x1() :
m.y2() - m.y1();
// Inverted axis, just invert the percentage.
if (orientation == RightToLeft || orientation == BottomToTop)
percent = 1 - percent;
double retValue = realSize * percent;
double adjusted =
orientation == LeftToRight ? retValue + m.x1() + p.x() :
orientation == RightToLeft ? retValue + m.x1() + p.x() :
orientation == TopToBottom ? retValue + m.y1() + p.y() :
/* entation == BottomToTop */ retValue + m.y1() + p.y();
return adjusted;
}
double DiveCartesianAxis::maximum() const
{
return max;
}
double DiveCartesianAxis::minimum() const
{
return min;
}
void DiveCartesianAxis::setColor(const QColor &color)
{
QPen defaultPen = gridPen();
defaultPen.setColor(color);
defaultPen.setJoinStyle(Qt::RoundJoin);
defaultPen.setCapStyle(Qt::RoundCap);
setPen(defaultPen);
}
QString DepthAxis::textForValue(double value) const
{
if (value == 0)
return QString();
return get_depth_string(lrint(value), false, false);
}
QColor DepthAxis::colorForValue(double) const
{
return QColor(Qt::red);
}
DepthAxis::DepthAxis(double fontPrintScale, ProfileScene &scene) : DiveCartesianAxis(fontPrintScale, scene),
unitSystem(prefs.units.length)
{
connect(&diveListNotifier, &DiveListNotifier::settingsChanged, this, &DepthAxis::settingsChanged);
changed = true;
}
void DepthAxis::settingsChanged()
{
if (unitSystem == prefs.units.length)
return;
changed = true;
updateTicks();
unitSystem = prefs.units.length;
}
QColor TimeAxis::colorForValue(double) const
{
return QColor(Qt::blue);
}
QString TimeAxis::textForValue(double value) const
{
int nr = lrint(value) / 60;
if (maximum() < 600)
return QString("%1:%2").arg(nr).arg((int)value % 60, 2, 10, QChar('0'));
return QString::number(nr);
}
void TimeAxis::updateTicks(color_index_t color)
{
DiveCartesianAxis::updateTicks(color);
if (maximum() > 600) {
for (int i = 0; i < labels.count(); i++) {
labels[i]->setVisible(i % 2);
}
}
}
QString TemperatureAxis::textForValue(double value) const
{
return QString::number(mkelvin_to_C((int)value));
}
PartialGasPressureAxis::PartialGasPressureAxis(const DivePlotDataModel &model, double fontPrintScale, ProfileScene &scene) :
DiveCartesianAxis(fontPrintScale, scene),
model(model)
{
connect(&diveListNotifier, &DiveListNotifier::settingsChanged, this, &PartialGasPressureAxis::update);
}
void PartialGasPressureAxis::update()
{
bool showPhe = prefs.pp_graphs.phe;
bool showPn2 = prefs.pp_graphs.pn2;
bool showPo2 = prefs.pp_graphs.po2;
setVisible(showPhe || showPn2 || showPo2);
if (!model.rowCount())
return;
double max = showPhe ? model.pheMax() : -1;
if (showPn2 && model.pn2Max() > max)
max = model.pn2Max();
if (showPo2 && model.po2Max() > max)
max = model.po2Max();
qreal pp = floor(max * 10.0) / 10.0 + 0.2;
if (IS_FP_SAME(maximum(), pp))
return;
setMaximum(pp);
setTickInterval(pp > 4 ? 0.5 : 0.25);
updateTicks();
}