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subsurface/desktop-widgets/profilewidget.cpp
Berthold Stoeger 787a23f017 profile: implement "empty state" in desktop's ProfileWidget 
The profile has an "empty state" showing the subsurface logo,
which is active when no dive is selected.

Switching to/from this mode is quite complex, because all the
chart features have to be hidden/shown, etc. Moreover, this mode
is not needed on mobile, where multiple ProfileWidgets can
be active at the same time and every dive has at least a
"faked" profile.

Therefore, implement this mode directly in the desktop
version of the widget. This makes the rescaling distinctly
less cumbersome. It is implemented using a QStackedWidget,
which switches between the profile and the logo.

This commit does not remove the empty state from the profile.

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

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// SPDX-License-Identifier: GPL-2.0
#include "profilewidget.h"
#include "profile-widget/profilewidget2.h"
#include "core/settings/qPrefTechnicalDetails.h"
#include "core/settings/qPrefPartialPressureGas.h"
#include "qt-models/diveplannermodel.h"
#include <QToolBar>
#include <QHBoxLayout>
#include <QStackedWidget>
#include <QLabel>
// A resizing display of the Subsurface logo when no dive is shown
class EmptyView : public QLabel {
public:
EmptyView(QWidget *parent = nullptr);
~EmptyView();
private:
QPixmap logo;
void update();
void resizeEvent(QResizeEvent *) override;
};
EmptyView::EmptyView(QWidget *parent) : QLabel(parent),
logo(":poster-icon")
{
QPalette pal;
pal.setColor(QPalette::Window, getColor(::BACKGROUND));
setAutoFillBackground(true);
setPalette(pal);
setMinimumSize(1,1);
setAlignment(Qt::AlignHCenter);
update();
}
EmptyView::~EmptyView()
{
}
void EmptyView::update()
{
setPixmap(logo.scaled(size(), Qt::KeepAspectRatio, Qt::SmoothTransformation));
}
void EmptyView::resizeEvent(QResizeEvent *)
{
update();
}
ProfileWidget::ProfileWidget()
{
ui.setupUi(this);
// what is a sane order for those icons? we should have the ones the user is
// most likely to want towards the top so they are always visible
// and the ones that someone likely sets and then never touches again towards the bottom
toolbarActions = { ui.profCalcCeiling, ui.profCalcAllTissues, // start with various ceilings
ui.profIncrement3m, ui.profDcCeiling,
ui.profPhe, ui.profPn2, ui.profPO2, // partial pressure graphs
ui.profRuler, ui.profScaled, // measuring and scaling
ui.profTogglePicture, ui.profTankbar,
ui.profMod, ui.profDeco, ui.profNdl_tts, // various values that a user is either interested in or not
ui.profEad, ui.profSAC,
ui.profHR, // very few dive computers support this
ui.profTissues }; // maybe less frequently used
emptyView.reset(new EmptyView);
view.reset(new ProfileWidget2(DivePlannerPointsModel::instance(), 1.0, this));
QToolBar *toolBar = new QToolBar(this);
for (QAction *a: toolbarActions)
toolBar->addAction(a);
toolBar->setOrientation(Qt::Vertical);
toolBar->setIconSize(QSize(24, 24));
stack = new QStackedWidget(this);
stack->addWidget(emptyView.get());
stack->addWidget(view.get());
QHBoxLayout *layout = new QHBoxLayout(this);
layout->setSpacing(0);
layout->setMargin(0);
layout->setContentsMargins(0, 0, 0, 0);
layout->addWidget(toolBar);
layout->addWidget(stack);
setLayout(layout);
// Toolbar Connections related to the Profile Update
auto tec = qPrefTechnicalDetails::instance();
connect(ui.profCalcAllTissues, &QAction::triggered, tec, &qPrefTechnicalDetails::set_calcalltissues);
connect(ui.profCalcCeiling, &QAction::triggered, tec, &qPrefTechnicalDetails::set_calcceiling);
connect(ui.profDcCeiling, &QAction::triggered, tec, &qPrefTechnicalDetails::set_dcceiling);
connect(ui.profEad, &QAction::triggered, tec, &qPrefTechnicalDetails::set_ead);
connect(ui.profIncrement3m, &QAction::triggered, tec, &qPrefTechnicalDetails::set_calcceiling3m);
connect(ui.profMod, &QAction::triggered, tec, &qPrefTechnicalDetails::set_mod);
connect(ui.profNdl_tts, &QAction::triggered, tec, &qPrefTechnicalDetails::set_calcndltts);
connect(ui.profDeco, &QAction::triggered, tec, &qPrefTechnicalDetails::set_decoinfo);
connect(ui.profHR, &QAction::triggered, tec, &qPrefTechnicalDetails::set_hrgraph);
connect(ui.profRuler, &QAction::triggered, tec, &qPrefTechnicalDetails::set_rulergraph);
connect(ui.profSAC, &QAction::triggered, tec, &qPrefTechnicalDetails::set_show_sac);
connect(ui.profScaled, &QAction::triggered, tec, &qPrefTechnicalDetails::set_zoomed_plot);
connect(ui.profTogglePicture, &QAction::triggered, tec, &qPrefTechnicalDetails::set_show_pictures_in_profile);
connect(ui.profTankbar, &QAction::triggered, tec, &qPrefTechnicalDetails::set_tankbar);
connect(ui.profTissues, &QAction::triggered, tec, &qPrefTechnicalDetails::set_percentagegraph);
connect(ui.profTissues, &QAction::triggered, this, &ProfileWidget::unsetProfHR);
connect(ui.profHR, &QAction::triggered, this, &ProfileWidget::unsetProfTissues);
auto pp_gas = qPrefPartialPressureGas::instance();
connect(ui.profPhe, &QAction::triggered, pp_gas, &qPrefPartialPressureGas::set_phe);
connect(ui.profPn2, &QAction::triggered, pp_gas, &qPrefPartialPressureGas::set_pn2);
connect(ui.profPO2, &QAction::triggered, pp_gas, &qPrefPartialPressureGas::set_po2);
connect(&diveListNotifier, &DiveListNotifier::settingsChanged, view.get(), &ProfileWidget2::settingsChanged);
ui.profCalcAllTissues->setChecked(qPrefTechnicalDetails::calcalltissues());
ui.profCalcCeiling->setChecked(qPrefTechnicalDetails::calcceiling());
ui.profDcCeiling->setChecked(qPrefTechnicalDetails::dcceiling());
ui.profEad->setChecked(qPrefTechnicalDetails::ead());
ui.profIncrement3m->setChecked(qPrefTechnicalDetails::calcceiling3m());
ui.profMod->setChecked(qPrefTechnicalDetails::mod());
ui.profNdl_tts->setChecked(qPrefTechnicalDetails::calcndltts());
ui.profDeco->setChecked(qPrefTechnicalDetails::decoinfo());
ui.profPhe->setChecked(pp_gas->phe());
ui.profPn2->setChecked(pp_gas->pn2());
ui.profPO2->setChecked(pp_gas->po2());
ui.profHR->setChecked(qPrefTechnicalDetails::hrgraph());
ui.profRuler->setChecked(qPrefTechnicalDetails::rulergraph());
ui.profSAC->setChecked(qPrefTechnicalDetails::show_sac());
ui.profTogglePicture->setChecked(qPrefTechnicalDetails::show_pictures_in_profile());
ui.profTankbar->setChecked(qPrefTechnicalDetails::tankbar());
ui.profTissues->setChecked(qPrefTechnicalDetails::percentagegraph());
ui.profScaled->setChecked(qPrefTechnicalDetails::zoomed_plot());
}
ProfileWidget::~ProfileWidget()
{
}
void ProfileWidget::setEnabledToolbar(bool enabled)
{
for (QAction *b: toolbarActions)
b->setEnabled(enabled);
}
void ProfileWidget::setDive(const struct dive *d)
{
stack->setCurrentIndex(1); // show profile
bool freeDiveMode = d->dc.divemode == FREEDIVE;
ui.profCalcCeiling->setDisabled(freeDiveMode);
ui.profCalcCeiling->setDisabled(freeDiveMode);
ui.profCalcAllTissues ->setDisabled(freeDiveMode);
ui.profIncrement3m->setDisabled(freeDiveMode);
ui.profDcCeiling->setDisabled(freeDiveMode);
ui.profPhe->setDisabled(freeDiveMode);
ui.profPn2->setDisabled(freeDiveMode); //TODO is the same as scuba?
ui.profPO2->setDisabled(freeDiveMode); //TODO is the same as scuba?
ui.profTankbar->setDisabled(freeDiveMode);
ui.profMod->setDisabled(freeDiveMode);
ui.profNdl_tts->setDisabled(freeDiveMode);
ui.profDeco->setDisabled(freeDiveMode);
ui.profEad->setDisabled(freeDiveMode);
ui.profSAC->setDisabled(freeDiveMode);
ui.profTissues->setDisabled(freeDiveMode);
ui.profRuler->setDisabled(false);
ui.profScaled->setDisabled(false); // measuring and scaling
ui.profTogglePicture->setDisabled(false);
ui.profHR->setDisabled(false);
}
void ProfileWidget::plotCurrentDive()
{
setEnabledToolbar(current_dive != nullptr);
if (current_dive) {
stack->setCurrentIndex(1);
bool freeDiveMode = current_dive->dc.divemode == FREEDIVE;
ui.profCalcCeiling->setDisabled(freeDiveMode);
ui.profCalcCeiling->setDisabled(freeDiveMode);
ui.profCalcAllTissues ->setDisabled(freeDiveMode);
ui.profIncrement3m->setDisabled(freeDiveMode);
ui.profDcCeiling->setDisabled(freeDiveMode);
ui.profPhe->setDisabled(freeDiveMode);
ui.profPn2->setDisabled(freeDiveMode); //TODO is the same as scuba?
ui.profPO2->setDisabled(freeDiveMode); //TODO is the same as scuba?
ui.profTankbar->setDisabled(freeDiveMode);
ui.profMod->setDisabled(freeDiveMode);
ui.profNdl_tts->setDisabled(freeDiveMode);
ui.profDeco->setDisabled(freeDiveMode);
ui.profEad->setDisabled(freeDiveMode);
ui.profSAC->setDisabled(freeDiveMode);
ui.profTissues->setDisabled(freeDiveMode);
ui.profRuler->setDisabled(false);
ui.profScaled->setDisabled(false); // measuring and scaling
ui.profTogglePicture->setDisabled(false);
ui.profHR->setDisabled(false);
view->plotDive(current_dive, dc_number);
} else {
stack->setCurrentIndex(0);
}
}
void ProfileWidget::setPlanState(const struct dive *d, int dc)
{
setDive(d); // show subsurface logo
view->setPlanState(d, dc);
}
void ProfileWidget::setEditState(const struct dive *d, int dc)
{
setDive(d);
view->setEditState(d, dc);
}
void ProfileWidget::unsetProfHR()
{
ui.profHR->setChecked(false);
qPrefTechnicalDetails::set_hrgraph(false);
}
void ProfileWidget::unsetProfTissues()
{
ui.profTissues->setChecked(false);
qPrefTechnicalDetails::set_percentagegraph(false);
}
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