From 0c7f56e8818683afd3c02dcb423fb8ad4ad72414 Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Tue, 15 Aug 2023 02:21:05 -0400
Subject: [PATCH] imageviewer updates

- new zoom icons
- resetview option
- properly track pushbutton checked state
- add preferences options for selecting background and box color
---
 tools/lammps-gui/chartviewer.cpp   |   2 +-
 tools/lammps-gui/gtk-zoom-fit.png  | Bin 1405 -> 5153 bytes
 tools/lammps-gui/gtk-zoom-in.png   | Bin 1224 -> 5006 bytes
 tools/lammps-gui/gtk-zoom-out.png  | Bin 1172 -> 4829 bytes
 tools/lammps-gui/imageviewer.cpp   |  58 +++++++++++++++++++++--------
 tools/lammps-gui/imageviewer.h     |   1 +
 tools/lammps-gui/lammpswrapper.cpp |  12 +++---
 tools/lammps-gui/preferences.cpp   |  38 +++++++++++++++++--
 8 files changed, 85 insertions(+), 26 deletions(-)

diff --git a/tools/lammps-gui/chartviewer.cpp b/tools/lammps-gui/chartviewer.cpp
index 0b269a80ec..d9fedd9129 100644
--- a/tools/lammps-gui/chartviewer.cpp
+++ b/tools/lammps-gui/chartviewer.cpp
@@ -53,7 +53,7 @@ int ChartWindow::get_step() const
 {
     if (charts.size() > 0) {
         auto *v = charts[0];
-        return (int)v->get_step(v->get_count()-1);
+        return (int)v->get_step(v->get_count() - 1);
     } else {
         return -1;
     }
diff --git a/tools/lammps-gui/gtk-zoom-fit.png b/tools/lammps-gui/gtk-zoom-fit.png
index 35994e8bc76a0c7032bb4432a2986729c1f69c19..9132294eac62905f27d5ed0fe4c48228fa8c306e 100644
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diff --git a/tools/lammps-gui/gtk-zoom-in.png b/tools/lammps-gui/gtk-zoom-in.png
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diff --git a/tools/lammps-gui/imageviewer.cpp b/tools/lammps-gui/imageviewer.cpp
index 3f8c5da1d9..d3db3e0d99 100644
--- a/tools/lammps-gui/imageviewer.cpp
+++ b/tools/lammps-gui/imageviewer.cpp
@@ -72,6 +72,7 @@ ImageViewer::ImageViewer(const QString &fileName, LammpsWrapper *_lammps, QWidge
     auto *rotright = new QPushButton(QIcon(":/object-rotate-right.png"), "");
     auto *rotup    = new QPushButton(QIcon(":/gtk-go-up.png"), "");
     auto *rotdown  = new QPushButton(QIcon(":/gtk-go-down.png"), "");
+    auto *reset    = new QPushButton(QIcon(":/gtk-zoom-fit.png"), "");
     auto *combo    = new QComboBox;
     combo->setObjectName("group");
     int ngroup = lammps->id_count("group");
@@ -93,6 +94,7 @@ ImageViewer::ImageViewer(const QString &fileName, LammpsWrapper *_lammps, QWidge
     menuLayout->addWidget(rotright);
     menuLayout->addWidget(rotup);
     menuLayout->addWidget(rotdown);
+    menuLayout->addWidget(reset);
     menuLayout->addWidget(new QLabel(" Group: "));
     menuLayout->addWidget(combo);
 
@@ -106,26 +108,20 @@ ImageViewer::ImageViewer(const QString &fileName, LammpsWrapper *_lammps, QWidge
     connect(rotright, &QPushButton::released, this, &ImageViewer::do_rot_right);
     connect(rotup, &QPushButton::released, this, &ImageViewer::do_rot_up);
     connect(rotdown, &QPushButton::released, this, &ImageViewer::do_rot_down);
+    connect(reset, &QPushButton::released, this, &ImageViewer::reset_view);
     connect(combo, SIGNAL(currentIndexChanged(int)), this, SLOT(change_group(int)));
 
     mainLayout->addLayout(menuLayout);
     mainLayout->addWidget(scrollArea);
     mainLayout->addWidget(buttonBox);
-    setWindowTitle(QString("Image Viewer: ") + QFileInfo(fileName).completeBaseName());
-
-    QSettings settings;
-    settings.beginGroup("snapshot");
-    zoom    = settings.value("zoom", 1.0).toDouble();
-    hrot    = settings.value("hrot", 60).toInt();
-    vrot    = settings.value("vrot", 30).toInt();
-    showbox = settings.value("box", true).toBool();
-    dobox->setChecked(showbox);
-    showaxes = settings.value("axes", false).toBool();
-    doaxes->setChecked(showaxes);
-    settings.endGroup();
-
+    setWindowTitle(QString("Image Viewer: ") + QFileInfo(fileName).fileName());
     createActions();
-    createImage();
+
+    reset_view();
+    dobox->setChecked(showbox);
+    doaxes->setChecked(showaxes);
+    dossao->setChecked(usessao);
+    doanti->setChecked(antialias);
 
     scaleFactor = 1.0;
     resize(image.width() + 20, image.height() + 50);
@@ -137,6 +133,37 @@ ImageViewer::ImageViewer(const QString &fileName, LammpsWrapper *_lammps, QWidge
     setLayout(mainLayout);
 }
 
+void ImageViewer::reset_view()
+{
+    QSettings settings;
+    settings.beginGroup("snapshot");
+    zoom      = settings.value("zoom", 1.0).toDouble();
+    hrot      = settings.value("hrot", 60).toInt();
+    vrot      = settings.value("vrot", 30).toInt();
+    showbox   = settings.value("box", true).toBool();
+    showaxes  = settings.value("axes", false).toBool();
+    usessao   = settings.value("ssao", false).toBool();
+    antialias = settings.value("antialias", false).toBool();
+    settings.endGroup();
+
+    // reset state of checkable push buttons (only after main layout is set up)
+    auto *lo = layout();
+    if (lo) {
+        lo           = lo->itemAt(0)->layout();
+        auto *button = qobject_cast<QPushButton *>(lo->itemAt(1)->widget());
+        button->setChecked(usessao);
+        button = qobject_cast<QPushButton *>(lo->itemAt(2)->widget());
+        button->setChecked(antialias);
+        button = qobject_cast<QPushButton *>(lo->itemAt(3)->widget());
+        button->setChecked(showbox);
+        button = qobject_cast<QPushButton *>(lo->itemAt(4)->widget());
+        button->setChecked(showaxes);
+        auto *cb = qobject_cast<QComboBox *>(lo->itemAt(lo->count() - 1)->widget());
+        cb->setCurrentText("all");
+    }
+    createImage();
+}
+
 void ImageViewer::toggle_ssao()
 {
     QPushButton *button = qobject_cast<QPushButton *>(sender());
@@ -251,7 +278,8 @@ void ImageViewer::createImage()
     else
         dumpcmd += QString(" axes no 0.0 0.0");
 
-    dumpcmd += " modify boxcolor silver";
+    dumpcmd += " modify boxcolor " + settings.value("boxcolor", "yellow").toString();
+    dumpcmd += " backcolor " + settings.value("background", "black").toString();
     settings.endGroup();
 
     lammps->command(dumpcmd.toLocal8Bit());
diff --git a/tools/lammps-gui/imageviewer.h b/tools/lammps-gui/imageviewer.h
index 1a4327561b..b81e5b0d59 100644
--- a/tools/lammps-gui/imageviewer.h
+++ b/tools/lammps-gui/imageviewer.h
@@ -45,6 +45,7 @@ private slots:
     void normalSize();
     void fitToWindow();
 
+    void reset_view();
     void toggle_ssao();
     void toggle_anti();
     void toggle_box();
diff --git a/tools/lammps-gui/lammpswrapper.cpp b/tools/lammps-gui/lammpswrapper.cpp
index 63d95d71b2..8bc6173752 100644
--- a/tools/lammps-gui/lammpswrapper.cpp
+++ b/tools/lammps-gui/lammpswrapper.cpp
@@ -39,7 +39,7 @@ int LammpsWrapper::extract_setting(const char *keyword)
 #if defined(LAMMPS_GUI_USE_PLUGIN)
         val = ((liblammpsplugin_t *)plugin_handle)->extract_setting(lammps_handle, keyword);
 #else
-        val           = lammps_extract_setting(lammps_handle, keyword);
+        val = lammps_extract_setting(lammps_handle, keyword);
 #endif
     }
     return val;
@@ -52,7 +52,7 @@ int LammpsWrapper::id_count(const char *keyword)
 #if defined(LAMMPS_GUI_USE_PLUGIN)
         val = ((liblammpsplugin_t *)plugin_handle)->id_count(lammps_handle, keyword);
 #else
-        val           = lammps_id_count(lammps_handle, keyword);
+        val = lammps_id_count(lammps_handle, keyword);
 #endif
     }
     return val;
@@ -65,7 +65,7 @@ int LammpsWrapper::id_name(const char *keyword, int idx, char *buf, int len)
 #if defined(LAMMPS_GUI_USE_PLUGIN)
         val = ((liblammpsplugin_t *)plugin_handle)->id_name(lammps_handle, keyword, idx, buf, len);
 #else
-        val                = lammps_id_name(lammps_handle, keyword, idx, buf, len);
+        val = lammps_id_name(lammps_handle, keyword, idx, buf, len);
 #endif
     }
     return val;
@@ -78,7 +78,7 @@ double LammpsWrapper::get_thermo(const char *keyword)
 #if defined(LAMMPS_GUI_USE_PLUGIN)
         val = ((liblammpsplugin_t *)plugin_handle)->get_thermo(lammps_handle, keyword);
 #else
-        val                = lammps_get_thermo(lammps_handle, keyword);
+        val = lammps_get_thermo(lammps_handle, keyword);
 #endif
     }
     return val;
@@ -91,7 +91,7 @@ void *LammpsWrapper::last_thermo(const char *keyword, int index)
 #if defined(LAMMPS_GUI_USE_PLUGIN)
         ptr = ((liblammpsplugin_t *)plugin_handle)->last_thermo(lammps_handle, keyword, index);
 #else
-        ptr                = lammps_last_thermo(lammps_handle, keyword, index);
+        ptr = lammps_last_thermo(lammps_handle, keyword, index);
 #endif
     }
     return ptr;
@@ -104,7 +104,7 @@ bool LammpsWrapper::is_running()
 #if defined(LAMMPS_GUI_USE_PLUGIN)
         val = ((liblammpsplugin_t *)plugin_handle)->is_running(lammps_handle);
 #else
-        val                = lammps_is_running(lammps_handle);
+        val = lammps_is_running(lammps_handle);
 #endif
     }
     return val != 0;
diff --git a/tools/lammps-gui/preferences.cpp b/tools/lammps-gui/preferences.cpp
index f003545764..45d7414140 100644
--- a/tools/lammps-gui/preferences.cpp
+++ b/tools/lammps-gui/preferences.cpp
@@ -120,6 +120,10 @@ void Preferences::accept()
     if (box) settings->setValue("box", box->isChecked());
     box = tabWidget->findChild<QCheckBox *>("axes");
     if (box) settings->setValue("axes", box->isChecked());
+    QComboBox *combo = tabWidget->findChild<QComboBox *>("background");
+    if (combo) settings->setValue("background", combo->currentText());
+    combo = tabWidget->findChild<QComboBox *>("boxcolor");
+    if (combo) settings->setValue("boxcolor", combo->currentText());
     settings->endGroup();
 
     // general settings
@@ -367,6 +371,8 @@ SnapshotTab::SnapshotTab(QSettings *_settings, QWidget *parent) :
     auto *ssao  = new QLabel("HQ Image mode:");
     auto *bbox  = new QLabel("Show Box:");
     auto *axes  = new QLabel("Show Axes:");
+    auto *cback = new QLabel("Background Color:");
+    auto *cbox  = new QLabel("Box Color:");
     settings->beginGroup("snapshot");
     auto *xval = new QLineEdit(settings->value("xsize", "800").toString());
     auto *yval = new QLineEdit(settings->value("ysize", "600").toString());
@@ -383,7 +389,6 @@ SnapshotTab::SnapshotTab(QSettings *_settings, QWidget *parent) :
     bval->setObjectName("box");
     eval->setCheckState(settings->value("axes", false).toBool() ? Qt::Checked : Qt::Unchecked);
     eval->setObjectName("axes");
-    settings->endGroup();
 
     auto *intval = new QIntValidator(100, 100000, this);
     xval->setValidator(intval);
@@ -393,6 +398,26 @@ SnapshotTab::SnapshotTab(QSettings *_settings, QWidget *parent) :
     zval->setValidator(new QDoubleValidator(0.01, 100.0, 100, this));
     zval->setObjectName("zoom");
 
+    auto *background = new QComboBox;
+    background->setObjectName("background");
+    background->addItem("black");
+    background->addItem("white");
+    background->addItem("darkgray");
+    background->addItem("gray");
+    background->addItem("silver");
+    background->setCurrentText(settings->value("background", "black").toString());
+
+    auto *boxcolor = new QComboBox;
+    boxcolor->setObjectName("boxcolor");
+    boxcolor->addItem("yellow");
+    boxcolor->addItem("silver");
+    boxcolor->addItem("gray");
+    boxcolor->addItem("red");
+    boxcolor->addItem("green");
+    boxcolor->addItem("blue");
+    boxcolor->setCurrentText(settings->value("boxcolor", "yellow").toString());
+    settings->endGroup();
+
     grid->addWidget(xsize, 0, 0, Qt::AlignTop);
     grid->addWidget(ysize, 1, 0, Qt::AlignTop);
     grid->addWidget(zoom, 2, 0, Qt::AlignTop);
@@ -400,6 +425,8 @@ SnapshotTab::SnapshotTab(QSettings *_settings, QWidget *parent) :
     grid->addWidget(ssao, 4, 0, Qt::AlignTop);
     grid->addWidget(bbox, 5, 0, Qt::AlignTop);
     grid->addWidget(axes, 6, 0, Qt::AlignTop);
+    grid->addWidget(cback, 7, 0, Qt::AlignTop);
+    grid->addWidget(cbox, 8, 0, Qt::AlignTop);
     grid->addWidget(xval, 0, 1, Qt::AlignTop);
     grid->addWidget(yval, 1, 1, Qt::AlignTop);
     grid->addWidget(zval, 2, 1, Qt::AlignTop);
@@ -407,9 +434,12 @@ SnapshotTab::SnapshotTab(QSettings *_settings, QWidget *parent) :
     grid->addWidget(sval, 4, 1, Qt::AlignVCenter);
     grid->addWidget(bval, 5, 1, Qt::AlignVCenter);
     grid->addWidget(eval, 6, 1, Qt::AlignVCenter);
-    grid->addItem(new QSpacerItem(100, 100, QSizePolicy::Minimum, QSizePolicy::Expanding), 7, 0);
-    grid->addItem(new QSpacerItem(100, 100, QSizePolicy::Minimum, QSizePolicy::Expanding), 7, 1);
-    grid->addItem(new QSpacerItem(100, 100, QSizePolicy::Expanding, QSizePolicy::Expanding), 7, 2);
+    grid->addWidget(background, 7, 1, Qt::AlignVCenter);
+    grid->addWidget(boxcolor, 8, 1, Qt::AlignVCenter);
+
+    grid->addItem(new QSpacerItem(100, 100, QSizePolicy::Minimum, QSizePolicy::Expanding), 9, 0);
+    grid->addItem(new QSpacerItem(100, 100, QSizePolicy::Minimum, QSizePolicy::Expanding), 9, 1);
+    grid->addItem(new QSpacerItem(100, 100, QSizePolicy::Expanding, QSizePolicy::Expanding), 9, 2);
     setLayout(grid);
 }