right_widget.cc

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// Right-side properties panel construction for GTree.
// Doxygen documentation is authoritative in the header; this file provides a
// short implementation-focused description and inline comments.
 
#include <QLabel>
#include <QVBoxLayout>
 
#include "gtree.h"
 
// Build the right-side panel that shows properties and controls for the selected item.
QWidget* GTree::right_widget() {
    // Container is parented to the GTree widget so Qt manages lifetime.
    auto* container = new QWidget(this);
    auto* vlayout = new QVBoxLayout(container);
 
    // Top widget: always present
    auto* topLabel = new QLabel(tr("Properties"), container);
    QFont f = topLabel->font();
    f.setBold(true);
    topLabel->setFont(f);
    vlayout->addWidget(topLabel);
 
    // Bottom widget: only visible when a tree item is pressed
    bottomPanel = new QWidget(container);
    auto* blayout = new QVBoxLayout(bottomPanel);
 
    // Representation buttons (wireframe / surface / cloud).
    std::vector<std::string> bicons;
    bicons.push_back(":/gtree/images/wireframe");
    bicons.push_back(":/gtree/images/surface");
    bicons.push_back(":/gtree/images/cloud");
    styleButtons = new GQTButtonsWidget(96, 96, bicons, false);
    blayout->addWidget(styleButtons, 1);
 
    // Opacity controls: label + slider + numeric value.
    auto* opacityContainer = new QWidget(bottomPanel);
    auto* opacityLayout = new QHBoxLayout(opacityContainer);
    opacityLayout->setContentsMargins(0, 0, 0, 0);
 
    auto* label = new QLabel(tr("Opacity:"), opacityContainer);
    opacityLabel = new QLabel(tr("1.00"), opacityContainer); // default text
 
    opacitySlider = new QSlider(Qt::Horizontal, opacityContainer);
    opacitySlider->setRange(0, 100); // 0 → 0.0, 100 → 1.0
    opacitySlider->setValue(100); // default fully opaque
    opacitySlider->setSingleStep(5);
    opacitySlider->setPageStep(10);
 
    opacityLayout->addWidget(label);
    opacityLayout->addWidget(opacitySlider);
    opacityLayout->addWidget(opacityLabel);
 
 
    // Info labels
    typeLabel = new QLabel(bottomPanel);
    daughtersLabel = new QLabel(bottomPanel);
    nameLabel = new QLabel(bottomPanel);
    materialLabel = new QLabel(bottomPanel);
    massLabel = new QLabel(bottomPanel);
    volumeLabel = new QLabel(bottomPanel);
    densityLabel = new QLabel(bottomPanel);
 
    blayout->addWidget(opacityContainer);
    blayout->addSpacing(10);
    blayout->addWidget(typeLabel);
    blayout->addWidget(daughtersLabel);
    blayout->addWidget(nameLabel);
    blayout->addWidget(materialLabel);
    blayout->addWidget(massLabel);
    blayout->addWidget(volumeLabel);
    blayout->addWidget(densityLabel);
    blayout->addStretch();
 
    // Hidden until a volume or system is selected in the tree.
    bottomPanel->setVisible(false);
 
    vlayout->addWidget(bottomPanel);
    vlayout->addStretch();
 
    return container;
}