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add non-functional slide show window to GUI

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# Conflicts:
#	tools/lammps-gui/CMakeLists.txt
#	tools/lammps-gui/lammpsgui.cpp
#	tools/lammps-gui/lammpsgui.qrc
#	tools/lammps-gui/lammpsgui.ui
This commit is contained in:
Axel Kohlmeyer
2023-08-29 18:45:04 -04:00
parent e83e9ab78b
commit 514fec1b11
8 changed files with 308 additions and 8 deletions
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190
tools/lammps-gui/slideshow.cpp Normal file
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/* ----------------------------------------------------------------------
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
https://www.lammps.org/, Sandia National Laboratories
LAMMPS development team: developers@lammps.org
Copyright (2003) Sandia Corporation. Under the terms of Contract
DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
certain rights in this software. This software is distributed under
the GNU General Public License.
See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */
#include "slideshow.h"
#include "lammpswrapper.h"
#include <QAction>
#include <QDialogButtonBox>
#include <QDir>
#include <QFileDialog>
#include <QGuiApplication>
#include <QImage>
#include <QImageReader>
#include <QLabel>
#include <QMenuBar>
#include <QMessageBox>
#include <QPalette>
#include <QPoint>
#include <QPushButton>
#include <QScreen>
#include <QScrollArea>
#include <QScrollBar>
#include <QSettings>
#include <QStatusBar>
#include <QVBoxLayout>
#include <QWidgetAction>
#include <cmath>
static const QString blank(" ");
SlideShow::SlideShow(const QString &fileName, LammpsWrapper *_lammps, QWidget *parent) :
QDialog(parent), imageLabel(new QLabel), scrollArea(new QScrollArea), menuBar(new QMenuBar),
lammps(_lammps)
{
imageLabel->setBackgroundRole(QPalette::Base);
imageLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
imageLabel->setScaledContents(true);
imageLabel->minimumSizeHint();
scrollArea->setBackgroundRole(QPalette::Dark);
scrollArea->setWidget(imageLabel);
scrollArea->setVisible(false);
buttonBox = new QDialogButtonBox(QDialogButtonBox::Close);
connect(buttonBox, &QDialogButtonBox::accepted, this, &QDialog::accept);
connect(buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
QVBoxLayout *mainLayout = new QVBoxLayout;
QSettings settings;
mainLayout->addWidget(scrollArea);
mainLayout->addWidget(buttonBox);
setWindowTitle(QString("Slide Show: ") + QFileInfo(fileName).fileName());
createActions();
scaleFactor = 1.0;
resize(image.width() + 20, image.height() + 50);
scrollArea->setVisible(true);
fitToWindowAct->setEnabled(true);
updateActions();
if (!fitToWindowAct->isChecked()) imageLabel->adjustSize();
setLayout(mainLayout);
}
void SlideShow::saveAs()
{
QString fileName = QFileDialog::getSaveFileName(this, "Save Image File As", QString(),
"Image Files (*.jpg *.png *.bmp *.ppm)");
saveFile(fileName);
}
void SlideShow::copy() {}
void SlideShow::zoomIn()
{
scaleImage(1.25);
}
void SlideShow::zoomOut()
{
scaleImage(0.8);
}
void SlideShow::normalSize()
{
imageLabel->adjustSize();
scaleFactor = 1.0;
}
void SlideShow::fitToWindow()
{
bool fitToWindow = fitToWindowAct->isChecked();
scrollArea->setWidgetResizable(fitToWindow);
if (!fitToWindow) normalSize();
updateActions();
}
void SlideShow::saveFile(const QString &fileName)
{
if (!fileName.isEmpty()) image.save(fileName);
}
void SlideShow::createActions()
{
QMenu *fileMenu = menuBar->addMenu("&File");
saveAsAct = fileMenu->addAction("&Save As...", this, &SlideShow::saveAs);
saveAsAct->setIcon(QIcon(":/document-save-as.png"));
saveAsAct->setEnabled(false);
fileMenu->addSeparator();
copyAct = fileMenu->addAction("&Copy", this, &SlideShow::copy);
copyAct->setIcon(QIcon(":/edit-copy.png"));
copyAct->setShortcut(QKeySequence::Copy);
copyAct->setEnabled(false);
fileMenu->addSeparator();
QAction *exitAct = fileMenu->addAction("&Close", this, &QWidget::close);
exitAct->setIcon(QIcon(":/window-close.png"));
exitAct->setShortcut(QKeySequence::fromString("Ctrl+W"));
QMenu *viewMenu = menuBar->addMenu("&View");
zoomInAct = viewMenu->addAction("Image Zoom &In (25%)", this, &SlideShow::zoomIn);
zoomInAct->setShortcut(QKeySequence::ZoomIn);
zoomInAct->setIcon(QIcon(":/gtk-zoom-in.png"));
zoomInAct->setEnabled(false);
zoomOutAct = viewMenu->addAction("Image Zoom &Out (25%)", this, &SlideShow::zoomOut);
zoomOutAct->setShortcut(QKeySequence::ZoomOut);
zoomOutAct->setIcon(QIcon(":/gtk-zoom-out.png"));
zoomOutAct->setEnabled(false);
normalSizeAct = viewMenu->addAction("&Reset Image Size", this, &SlideShow::normalSize);
normalSizeAct->setShortcut(QKeySequence::fromString("Ctrl+0"));
normalSizeAct->setIcon(QIcon(":/gtk-zoom-fit.png"));
normalSizeAct->setEnabled(false);
viewMenu->addSeparator();
fitToWindowAct = viewMenu->addAction("&Fit to Window", this, &SlideShow::fitToWindow);
fitToWindowAct->setEnabled(false);
fitToWindowAct->setCheckable(true);
fitToWindowAct->setShortcut(QKeySequence::fromString("Ctrl+="));
}
void SlideShow::updateActions()
{
saveAsAct->setEnabled(!image.isNull());
copyAct->setEnabled(!image.isNull());
zoomInAct->setEnabled(!fitToWindowAct->isChecked());
zoomOutAct->setEnabled(!fitToWindowAct->isChecked());
normalSizeAct->setEnabled(!fitToWindowAct->isChecked());
}
void SlideShow::scaleImage(double factor)
{
scaleFactor *= factor;
#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
imageLabel->resize(scaleFactor * imageLabel->pixmap()->size());
#else
imageLabel->resize(scaleFactor * imageLabel->pixmap(Qt::ReturnByValue).size());
#endif
adjustScrollBar(scrollArea->horizontalScrollBar(), factor);
adjustScrollBar(scrollArea->verticalScrollBar(), factor);
zoomInAct->setEnabled(scaleFactor < 3.0);
zoomOutAct->setEnabled(scaleFactor > 0.333);
}
void SlideShow::adjustScrollBar(QScrollBar *scrollBar, double factor)
{
scrollBar->setValue(
int(factor * scrollBar->value() + ((factor - 1) * scrollBar->pageStep() / 2)));
}
// Local Variables:
// c-basic-offset: 4
// End: