leonarski_fandClaude Opus 5
3eccc58961
image_fp is the base class's one pixel representation, and it earns that for
three of the four image widgets: the azimuthal image is already float, the grid
scan holds computed 1/sigma^2 floats, and the calibration viewer accepts eight
source types from uint8 to float64. The diffraction image is the odd one out --
its source is a large int32 buffer -- and it is the one paying: a full
int32 -> float pass plus a second resident copy of the image, on every frame.
Split the mapping from the source. PixelColorMap holds the precomputed LUT
constants and does value -> colour; a virtual ColorRow() picks the pixels out of
whatever buffer the subclass has. Both paths now go through the same Apply(), so
only the gap/bad/saturated dispatch differs, and it lines up exactly with the
encoding LoadImageInternal used:
GAP_PXL_VALUE -> NAN -> gap
ERROR_PXL_VALUE -> -INF -> bad
SATURATED_PXL_VALUE -> +INF -> saturated
The base class still needs real pixel values for ROI statistics and per-pixel
labels, so image_fp is filled on demand instead of per frame -- and only when
something reads it: a non-empty scratch ROI, or labels above 30x zoom. Neither
happens while simply looking at frames, and nothing else routinely sets roiBox
(the named ROIs are computed in the reading worker, not here).
18.1 Mpx: 10.5 -> 5.9 ms per frame and 72 MB less resident. 4.5 Mpx: 1.8 -> 1.0 ms
and 18 MB.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
1065 lines
38 KiB
C++
1065 lines
38 KiB
C++
// SPDX-FileCopyrightText: 2025 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
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// SPDX-License-Identifier: GPL-3.0-only
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#include "JFJochImage.h"
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#include <QGraphicsSimpleTextItem>
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#include <QScrollBar>
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#include <QWheelEvent>
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#include <QMouseEvent>
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#include <QTimer>
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#include <QMenu>
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#include <QContextMenuEvent>
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#include <QClipboard>
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#include <QGuiApplication>
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#include <QMimeData>
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#include <QBuffer>
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#include <QFileDialog>
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#include <QElapsedTimer>
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#include <QPainter>
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#include <QtConcurrent/QtConcurrent>
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QRectF JFJochImageItem::boundingRect() const {
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return QRectF(0, 0, img_.width(), img_.height());
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}
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QPainterPath JFJochImageItem::opaqueArea() const {
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// The buffer is RGB32, so the item fully covers its bounding rect
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QPainterPath path;
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path.addRect(boundingRect());
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return path;
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}
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void JFJochImageItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) {
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if (img_.isNull())
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return;
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// QGraphicsPixmapItem defaults to Qt::FastTransformation and turned this hint off before
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// drawing; keep doing that, so zoomed-in detector pixels stay sharp squares.
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painter->setRenderHint(QPainter::SmoothPixmapTransform, false);
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painter->drawImage(0, 0, img_);
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}
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void JFJochImageItem::refresh() {
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prepareGeometryChange();
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update();
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}
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JFJochImage::JFJochImage(QWidget *parent) : QGraphicsView(parent) {
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setDragMode(QGraphicsView::NoDrag); // Disable default drag mode
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setTransformationAnchor(QGraphicsView::AnchorUnderMouse); // Zoom anchors
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setRenderHint(QPainter::Antialiasing); // Enable smooth rendering
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setRenderHint(QPainter::SmoothPixmapTransform);
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setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
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setFocusPolicy(Qt::ClickFocus);
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// Connect the horizontal scrollbar's valueChanged signal
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connect(horizontalScrollBar(), &QScrollBar::valueChanged, this, &JFJochImage::onScroll);
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// Connect the vertical scrollbar's valueChanged signal
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connect(verticalScrollBar(), &QScrollBar::valueChanged, this, &JFJochImage::onScroll);
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// Optional: a sensible default colormap
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color_scale.Select(ColorScaleEnum::Indigo);
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}
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void JFJochImage::onScroll(int value) {
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if (suppress_overlay_update_)
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return;
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updateOverlay();
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}
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void JFJochImage::ScheduleRenderImage() {
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if (render_pending_)
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return;
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render_pending_ = true;
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QTimer::singleShot(0, this, [this] {
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render_pending_ = false;
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RenderImage();
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Redraw();
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});
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}
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void JFJochImage::changeBackground(float val) {
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background = val;
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ScheduleRenderImage();
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}
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void JFJochImage::changeForeground(float val) {
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auto_fg = false;
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emit autoForegroundChanged(false);
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foreground = val;
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// Regenerate the image
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ScheduleRenderImage();
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}
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void JFJochImage::setColorMap(int color_map) {
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try {
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color_scale.Select(static_cast<ColorScaleEnum>(color_map));
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// Regenerate the image
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RenderImage();
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Redraw();
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} catch (...) {
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}
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}
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void JFJochImage::setFeatureColor(QColor input) {
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feature_color = input;
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RenderImage();
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Redraw();
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}
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void JFJochImage::wheelEvent(QWheelEvent *event) {
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if (!scene()) return;
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const double zoomFactor = 1.15; // Zoom factor
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// Get the position of the mouse in scene coordinates
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QPointF targetScenePos = mapToScene(event->position().toPoint());
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const bool exp_fg_adjust = (event->modifiers() & Qt::ControlModifier);
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const bool lin_fg_adjust = (event->modifiers() & Qt::ShiftModifier) || m_adjustForegroundWithWheel;
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if (exp_fg_adjust || lin_fg_adjust) {
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float new_foreground = foreground;
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if (exp_fg_adjust) {
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const float step = (event->angleDelta().y() > 0) ? zoomFactor : (1.0 / zoomFactor);
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new_foreground = foreground * step;
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} else {
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new_foreground = foreground + event->angleDelta().y() / 120.0f;
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}
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if (new_foreground < 1.0f)
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new_foreground = 1.0f;
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changeForeground(new_foreground);
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emit foregroundChanged(foreground);
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} else {
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// Zooming and re-centering both move the scrollbars, and every move reaches
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// onScroll(); suppress those and rebuild the overlay once, below.
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suppress_overlay_update_ = true;
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// Perform zooming
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if (event->angleDelta().y() > 0) {
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if (scale_factor * zoomFactor < 500.0) {
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scale_factor *= zoomFactor;
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scale(zoomFactor, zoomFactor);
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}
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} else {
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if (scale_factor > 0.2) {
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scale_factor *= 1.0 / zoomFactor;
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scale(1.0 / zoomFactor, 1.0 / zoomFactor);
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}
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}
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// Adjust the view's center to keep the zoom focused on the mouse position
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QPointF updatedViewportCenter = mapToScene(viewport()->rect().center());
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QPointF delta = targetScenePos - updatedViewportCenter;
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translate(delta.x(), delta.y()); // Shift the view
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suppress_overlay_update_ = false;
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updateOverlay();
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emitViewportChanged();
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}
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}
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void JFJochImage::resizeEvent(QResizeEvent *event) {
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QGraphicsView::resizeEvent(event);
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if (scene())
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scene()->setSceneRect(QRectF(0, 0, static_cast<qreal>(W), static_cast<qreal>(H)));
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// Retry a deferred initial fit: fitToViewShorterSideOnce() skips fitting while the viewport has no
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// real size yet (before the widget is laid out/shown), leaving the view at 1:1 - a small grid-scan
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// plot then renders tiny, "zoomed out". This is the retry its comment promises. Only while the
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// initial fit is still pending, so a later user resize never overrides a manual zoom.
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if (!initial_fit_done_)
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fitToViewShorterSideOnce();
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updateOverlay();
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}
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QPointF JFJochImage::RoundPoint(const QPointF &input) {
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return QPointF(qRound(input.x()), qRound(input.y()));
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}
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void JFJochImage::SetROIBox(QRect box) {
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roi_type = RoiType::RoiBox;
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roiBox= box;
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roiStartPos = roiBox.topLeft();
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roiEndPos = roiBox.bottomRight();
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Redraw();
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}
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void JFJochImage::SetROICircle(double x, double y, double radius) {
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roi_type = RoiType::RoiCircle;
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roiBox= QRectF(x - radius, y - radius, 2 * radius, 2 * radius).normalized();
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roiStartPos = roiBox.topLeft();
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roiEndPos = roiBox.bottomRight();
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Redraw();
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}
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void JFJochImage::mousePressEvent(QMouseEvent *event) {
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if (!scene()) return;
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if (event->button() == Qt::LeftButton) {
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const QPointF scenePos = mapToScene(event->pos());
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if (roiEditPress(scenePos)) {
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mouse_event_type = MouseEventType::EditingExternalROI;
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event->accept();
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return;
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}
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active_handle_ = hitTestROIHandle(scenePos, 4.0 / std::sqrt(std::max(1e-4, scale_factor)));
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if (active_handle_ != ResizeHandle::None && active_handle_ != ResizeHandle::Inside) {
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mouse_event_type = MouseEventType::ResizingROI;
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roiStartPos = roiBox.topLeft();
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roiEndPos = roiBox.bottomRight();
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setCursor(Qt::SizeAllCursor);
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} else if (roiBox.contains(scenePos)) {
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mouse_event_type = MouseEventType::MovingROI;
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lastMousePos = event->pos();
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setCursor(Qt::ClosedHandCursor);
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} else if (event->modifiers() & Qt::Modifier::SHIFT) {
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mouse_event_type = MouseEventType::DrawingROI;
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roiStartPos = RoundPoint(scenePos);
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roiEndPos = roiStartPos;
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roi_type = (event->modifiers() & Qt::Modifier::CTRL) ? RoiType::RoiCircle : RoiType::RoiBox;
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setCursor(Qt::CrossCursor);
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} else {
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mouse_event_type = MouseEventType::Panning;
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setCursor(Qt::ClosedHandCursor);
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lastMousePos = event->pos();
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}
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}
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QGraphicsView::mousePressEvent(event);
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}
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void JFJochImage::mouseMoveEvent(QMouseEvent *event) {
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if (!scene())
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return;
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const QPointF scenePos = mapToScene(event->pos());
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mouseHover(event);
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emit hoverScenePos(scenePos);
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QPointF delta;
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switch (mouse_event_type) {
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case MouseEventType::EditingExternalROI:
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roiEditMove(scenePos);
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return;
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case MouseEventType::Panning: {
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const QPoint viewDelta = event->pos() - lastMousePos;
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lastMousePos = event->pos();
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// Each setValue() reaches onScroll(), so the overlay was rebuilt three times per
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// mouse move. Suppress those and rebuild once, below.
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suppress_overlay_update_ = true;
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horizontalScrollBar()->setValue(horizontalScrollBar()->value() - viewDelta.x());
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verticalScrollBar()->setValue(verticalScrollBar()->value() - viewDelta.y());
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suppress_overlay_update_ = false;
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updateOverlay();
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emitViewportChanged();
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break;
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}
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case MouseEventType::DrawingROI:
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roiEndPos = RoundPoint(scenePos);
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updateROI();
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break;
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case MouseEventType::MovingROI:
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delta = mapToScene(event->pos()) - mapToScene(lastMousePos);
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lastMousePos = event->pos();
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roiBox.translate(delta);
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updateROI();
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break;
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case MouseEventType::ResizingROI: {
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// Modify the corresponding edges based on active_handle_
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if (roi_type == RoiType::RoiCircle) {
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// Resize circle by radius only, keep center fixed
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const QPointF c = roiBox.center();
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const qreal dx = scenePos.x() - c.x();
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const qreal dy = scenePos.y() - c.y();
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qreal r = std::hypot(dx, dy);
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const qreal rMin = 1.0; // clamp tiny radii
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if (r < rMin) r = rMin;
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roiBox = QRectF(c.x() - r, c.y() - r, 2*r, 2*r);
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} else {
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// Box: modify edges based on active handle
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QRectF r = roiBox;
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switch (active_handle_) {
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case ResizeHandle::Left: r.setLeft(scenePos.x()); break;
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case ResizeHandle::Right: r.setRight(scenePos.x()); break;
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case ResizeHandle::Top: r.setTop(scenePos.y()); break;
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case ResizeHandle::Bottom: r.setBottom(scenePos.y()); break;
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case ResizeHandle::TopLeft: r.setTop(scenePos.y()); r.setLeft(scenePos.x()); break;
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case ResizeHandle::TopRight: r.setTop(scenePos.y()); r.setRight(scenePos.x()); break;
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case ResizeHandle::BottomLeft: r.setBottom(scenePos.y()); r.setLeft(scenePos.x()); break;
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case ResizeHandle::BottomRight:r.setBottom(scenePos.y()); r.setRight(scenePos.x()); break;
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default: break;
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}
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roiBox = r.normalized();
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}
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updateROI();
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break;
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}
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case MouseEventType::None: {
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const qreal tol = 4.0 / std::sqrt(std::max(1e-4, scale_factor));
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ResizeHandle h = hitTestROIHandle(scenePos, tol);
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// Update hover state so overlay can draw arrows/handles accordingly
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if (h != hover_handle_) {
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hover_handle_ = h;
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updateOverlay();
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}
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// Set an informative cursor
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switch (h) {
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case ResizeHandle::Left:
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case ResizeHandle::Right:
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setCursor(Qt::SizeHorCursor); break;
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case ResizeHandle::Top:
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case ResizeHandle::Bottom:
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setCursor(Qt::SizeVerCursor); break;
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case ResizeHandle::TopLeft:
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case ResizeHandle::BottomRight:
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setCursor(Qt::SizeFDiagCursor); break;
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case ResizeHandle::TopRight:
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case ResizeHandle::BottomLeft:
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setCursor(Qt::SizeBDiagCursor); break;
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case ResizeHandle::Inside:
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setCursor(Qt::OpenHandCursor); break;
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case ResizeHandle::None:
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setCursor(Qt::ArrowCursor); break;
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}
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break;
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}
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}
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QGraphicsView::mouseMoveEvent(event);
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}
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void JFJochImage::mouseReleaseEvent(QMouseEvent *event) {
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if (!scene()) return;
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if (event->button() == Qt::LeftButton) {
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if (mouse_event_type == MouseEventType::EditingExternalROI) {
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roiEditRelease();
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} else {
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const bool drawn = (mouse_event_type == MouseEventType::DrawingROI);
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if (drawn)
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roiEndPos = RoundPoint(mapToScene(event->pos()));
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updateROI();
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if (drawn)
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roiScratchDrawn(); // turn the drawn scratch box/circle into a persistent ROI
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}
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}
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mouse_event_type = MouseEventType::None;
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active_handle_ = ResizeHandle::None;
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setCursor(Qt::ArrowCursor);
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QGraphicsView::mouseReleaseEvent(event);
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}
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void JFJochImage::contextMenuEvent(QContextMenuEvent *event) {
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QMenu menu(this);
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QAction *copyImageAct = menu.addAction(tr("Copy image"));
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QAction *copyWithOverlayAct = menu.addAction(tr("Copy image with overlay"));
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menu.addSeparator();
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QAction *saveImageAct = menu.addAction(tr("Save image as JPEG..."));
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QAction *saveWithOverlayAct = menu.addAction(tr("Save image with overlay as JPEG..."));
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menu.addSeparator();
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QAction *fitAct = menu.addAction(tr("Fit image to view"));
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QAction *clearRoiAct = menu.addAction(tr("Clear ROI"));
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const bool hasImage = (W > 0 && H > 0 && !qimg_buffer_.isNull());
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copyImageAct->setEnabled(hasImage);
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copyWithOverlayAct->setEnabled(hasImage && scene());
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saveImageAct->setEnabled(hasImage);
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saveWithOverlayAct->setEnabled(hasImage && scene());
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QAction *chosen = menu.exec(event->globalPos());
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if (!chosen) return;
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if (chosen == copyImageAct) {
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copyImageToClipboard();
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} else if (chosen == copyWithOverlayAct) {
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copyImageWithOverlayToClipboard();
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} else if (chosen == saveImageAct) {
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saveImageToFile(false);
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} else if (chosen == saveWithOverlayAct) {
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saveImageToFile(true);
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} else if (chosen == fitAct) {
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fitToView();
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} else if (chosen == clearRoiAct) {
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clearROIInternal();
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}
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}
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static void setClipboardAsJpegAndImage(const QImage &img, int quality = 95) {
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// Provide both "image/jpeg" and generic image flavors for better compatibility
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QByteArray ba;
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ba.reserve(img.width() * img.height() * 3 / 2);
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QBuffer buf(&ba);
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buf.open(QIODevice::WriteOnly);
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QImage toSave = img;
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// Force 1:1 pixel ratio and standard DPI (96) to avoid scaling in consumer apps
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toSave.setDevicePixelRatio(1.0);
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constexpr int dotsPerMeter96DPI = 3780; // 96 DPI
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toSave.setDotsPerMeterX(dotsPerMeter96DPI);
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toSave.setDotsPerMeterY(dotsPerMeter96DPI);
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toSave = toSave.convertToFormat(QImage::Format_ARGB32); // ensure a known format for encoding
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toSave.save(&buf, "JPEG", quality);
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auto *mime = new QMimeData();
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mime->setData("image/jpeg", ba);
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mime->setImageData(toSave); // also set as generic bitmap
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QGuiApplication::clipboard()->setMimeData(mime);
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}
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QImage JFJochImage::renderToImage(bool with_overlay) {
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QImage img;
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if (with_overlay && scene()) {
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// Render the entire scene (image + overlay) at native image resolution
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img = QImage(int(W), int(H), QImage::Format_ARGB32_Premultiplied);
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img.fill(Qt::transparent);
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QPainter p(&img);
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const QRectF rect(0, 0, qreal(W), qreal(H));
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scene()->render(&p, rect, rect);
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p.end();
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} else {
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// The underlying rendered image (no overlay)
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img = qimg_buffer_;
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}
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// Ensure 1:1 pixel ratio and 96 DPI metadata to avoid rescaling in consumer apps
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img.setDevicePixelRatio(1.0);
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constexpr int dotsPerMeter96DPI = 3780;
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img.setDotsPerMeterX(dotsPerMeter96DPI);
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img.setDotsPerMeterY(dotsPerMeter96DPI);
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return img;
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}
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void JFJochImage::copyImageToClipboard() {
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if (W == 0 || H == 0 || qimg_buffer_.isNull()) return;
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setClipboardAsJpegAndImage(renderToImage(false), 95);
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emit writeStatusBar(tr("Image copied to clipboard"), 2000);
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}
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void JFJochImage::copyImageWithOverlayToClipboard() {
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if (W == 0 || H == 0 || !scene()) return;
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setClipboardAsJpegAndImage(renderToImage(true), 95);
|
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emit writeStatusBar(tr("Image with overlay copied to clipboard"), 2000);
|
|
}
|
|
|
|
void JFJochImage::saveImageToFile(bool with_overlay) {
|
|
if (W == 0 || H == 0 || qimg_buffer_.isNull()) return;
|
|
if (with_overlay && !scene()) return;
|
|
|
|
const QString caption = with_overlay ? tr("Save image with overlay as JPEG")
|
|
: tr("Save image as JPEG");
|
|
QString file_name = QFileDialog::getSaveFileName(this, caption, QString(),
|
|
tr("JPEG image (*.jpg *.jpeg)"));
|
|
if (file_name.isEmpty())
|
|
return;
|
|
if (!file_name.endsWith(".jpg", Qt::CaseInsensitive) && !file_name.endsWith(".jpeg", Qt::CaseInsensitive))
|
|
file_name += ".jpg";
|
|
|
|
// JPEG cannot store alpha; flatten to RGB before encoding.
|
|
const QImage img = renderToImage(with_overlay).convertToFormat(QImage::Format_RGB32);
|
|
if (img.save(file_name, "JPEG", 95))
|
|
emit writeStatusBar(tr("Saved %1").arg(file_name), 3000);
|
|
else
|
|
emit writeStatusBar(tr("Failed to save %1").arg(file_name), 3000);
|
|
}
|
|
|
|
void JFJochImage::clearROIInternal() {
|
|
roiBox = QRectF(); // clear any ROI
|
|
// Keep current roi_type; ROI simply becomes empty
|
|
CalcROI(); // will emit a zeroed ROI message
|
|
updateOverlay();
|
|
emit writeStatusBar(tr("ROI cleared"), 1500);
|
|
}
|
|
|
|
JFJochImage::ResizeHandle
|
|
JFJochImage::hitTestROIHandle(const QPointF& scenePos, qreal tol) const {
|
|
if (roiBox.isNull() || roiBox.width() <= 0 || roiBox.height() <= 0)
|
|
return ResizeHandle::None;
|
|
|
|
const QRectF r = roiBox;
|
|
|
|
if (roi_type == RoiType::RoiCircle) {
|
|
// Circle hit test: near perimeter -> resize, inside -> move
|
|
const QPointF c = r.center();
|
|
const qreal rx = r.width() * 0.5;
|
|
const qreal ry = r.height() * 0.5;
|
|
// Enforce circular assumption: use average radius
|
|
const qreal rad = 0.5 * (rx + ry);
|
|
const qreal dx = scenePos.x() - c.x();
|
|
const qreal dy = scenePos.y() - c.y();
|
|
const qreal d = std::hypot(dx, dy);
|
|
if (std::abs(d - rad) <= tol) {
|
|
// generic "edge" resize handle for circle
|
|
return ResizeHandle::Right;
|
|
}
|
|
if (d < rad) return ResizeHandle::Inside;
|
|
return ResizeHandle::None;
|
|
}
|
|
|
|
// Box hit test (corners first)
|
|
const QPointF tl = r.topLeft();
|
|
const QPointF tr = r.topRight();
|
|
const QPointF bl = r.bottomLeft();
|
|
const QPointF br = r.bottomRight();
|
|
|
|
auto nearPt = [&](const QPointF& a, const QPointF& b, qreal t) {
|
|
return std::abs(a.x() - b.x()) <= t && std::abs(a.y() - b.y()) <= t;
|
|
};
|
|
|
|
if (nearPt(scenePos, tl, tol)) return ResizeHandle::TopLeft;
|
|
if (nearPt(scenePos, tr, tol)) return ResizeHandle::TopRight;
|
|
if (nearPt(scenePos, bl, tol)) return ResizeHandle::BottomLeft;
|
|
if (nearPt(scenePos, br, tol)) return ResizeHandle::BottomRight;
|
|
|
|
// Edges
|
|
if (std::abs(scenePos.x() - r.left()) <= tol && scenePos.y() >= r.top() - tol && scenePos.y() <= r.bottom() + tol)
|
|
return ResizeHandle::Left;
|
|
if (std::abs(scenePos.x() - r.right()) <= tol && scenePos.y() >= r.top() - tol && scenePos.y() <= r.bottom() + tol)
|
|
return ResizeHandle::Right;
|
|
if (std::abs(scenePos.y() - r.top()) <= tol && scenePos.x() >= r.left() - tol && scenePos.x() <= r.right() + tol)
|
|
return ResizeHandle::Top;
|
|
if (std::abs(scenePos.y() - r.bottom()) <= tol && scenePos.x() >= r.left() - tol && scenePos.x() <= r.right() + tol)
|
|
return ResizeHandle::Bottom;
|
|
|
|
if (r.contains(scenePos)) return ResizeHandle::Inside;
|
|
return ResizeHandle::None;
|
|
}
|
|
|
|
void JFJochImage::updateROI() {
|
|
if (roi_type == RoiType::RoiBox) {
|
|
if (mouse_event_type == MouseEventType::DrawingROI) {
|
|
// While drawing: construct box from start/end
|
|
QRectF rect = QRectF(RoundPoint(roiStartPos), RoundPoint(roiEndPos)).normalized();
|
|
roiBox = rect;
|
|
} else {
|
|
// While moving/resizing: keep roiBox as modified, just sync corners
|
|
roiStartPos = roiBox.topLeft();
|
|
roiEndPos = roiBox.bottomRight();
|
|
}
|
|
emit roiBoxUpdated(roiBox.toRect());
|
|
} else {
|
|
double radius;
|
|
if (mouse_event_type == MouseEventType::DrawingROI) {
|
|
// Center at roiStartPos, radius from start->end
|
|
QPointF delta = roiStartPos - roiEndPos;
|
|
radius = std::sqrt(delta.x() * delta.x() + delta.y() * delta.y());
|
|
roiBox = QRectF(roiStartPos.x() - radius, roiStartPos.y() - radius,
|
|
2 * radius, 2 * radius).normalized();
|
|
} else {
|
|
// Moving/resizing: infer center/radius from roiBox
|
|
const QPointF c = roiBox.center();
|
|
radius = 0.5 * std::min(roiBox.width(), roiBox.height());
|
|
roiStartPos = c; // treat start as center for consistency
|
|
roiEndPos = QPointF(c.x() + radius, c.y()); // arbitrary point on radius
|
|
}
|
|
emit roiCircleUpdated(roiStartPos.x(), roiStartPos.y(), radius);
|
|
}
|
|
CalcROI();
|
|
updateOverlay();
|
|
}
|
|
|
|
void JFJochImage::addOverlayItem(QGraphicsItem *item) {
|
|
overlay_items_.append(item);
|
|
}
|
|
|
|
void JFJochImage::DrawROI() {
|
|
if (roiBox.isNull() || roiBox.width() <= 0 || roiBox.height() <= 0) return;
|
|
|
|
auto scn = scene();
|
|
if (!scn)
|
|
return;
|
|
|
|
QPen pen(feature_color, 2);
|
|
pen.setStyle(Qt::DashLine);
|
|
pen.setCosmetic(true);
|
|
|
|
const qreal f = std::clamp(scale_factor, 0.5, 50.0);
|
|
const qreal handleSize = 3.0 / std::sqrt(std::max(1e-4, f));
|
|
|
|
if (roi_type == RoiType::RoiCircle) {
|
|
// Draw circle
|
|
addOverlayItem(scn->addEllipse(roiBox, pen));
|
|
|
|
// A single handle on the circle at the rightmost point
|
|
const QPointF c = roiBox.center();
|
|
const qreal rad = 0.5 * (roiBox.width() + roiBox.height()) * 0.5; // average, should be equal
|
|
QPointF hpos = QPointF(roiBox.right(), c.y());
|
|
addOverlayItem(scn->addRect(QRectF(hpos.x() - handleSize, hpos.y() - handleSize, 2 * handleSize, 2 * handleSize),
|
|
QPen(feature_color, 1), QBrush(feature_color)));
|
|
|
|
// On hover near perimeter: draw in/out arrows along radius at handle
|
|
if (hover_handle_ != ResizeHandle::None && hover_handle_ != ResizeHandle::Inside) {
|
|
QPen apen(feature_color, 1);
|
|
apen.setCosmetic(true);
|
|
const qreal arrowLen = 8.0 / std::sqrt(std::max(1e-4, f));
|
|
// Outward arrow
|
|
addOverlayItem(scn->addLine(QLineF(c, c + QPointF(rad + arrowLen, 0)), apen));
|
|
// Inward arrow
|
|
addOverlayItem(scn->addLine(QLineF(c, c + QPointF(rad - arrowLen, 0)), apen));
|
|
}
|
|
} else {
|
|
// Box
|
|
addOverlayItem(scn->addRect(roiBox, pen));
|
|
|
|
// Corner handles
|
|
auto addHandle = [&](const QPointF& p) {
|
|
addOverlayItem(scn->addRect(QRectF(p.x() - handleSize, p.y() - handleSize, 2 * handleSize, 2 * handleSize),
|
|
QPen(feature_color, 1), QBrush(feature_color)));
|
|
};
|
|
addHandle(roiBox.topLeft());
|
|
addHandle(roiBox.topRight());
|
|
addHandle(roiBox.bottomLeft());
|
|
addHandle(roiBox.bottomRight());
|
|
|
|
// On hover over a resizable edge/corner: draw small arrows indicating resize direction
|
|
if (hover_handle_ != ResizeHandle::None && hover_handle_ != ResizeHandle::Inside) {
|
|
QPen apen(feature_color, 1);
|
|
apen.setCosmetic(true);
|
|
const qreal arrowLen = 6.0 / std::sqrt(std::max(1e-4, f));
|
|
const qreal off = 10.0 / std::sqrt(std::max(1e-4, f));
|
|
auto drawArrow = [&](const QPointF& a, const QPointF& b) {
|
|
addOverlayItem(scn->addLine(QLineF(a, b), apen));
|
|
};
|
|
const QRectF r = roiBox;
|
|
switch (hover_handle_) {
|
|
case ResizeHandle::Left:
|
|
drawArrow(QPointF(r.left(), r.center().y() - off), QPointF(r.left() - arrowLen, r.center().y() - off));
|
|
drawArrow(QPointF(r.left(), r.center().y() + off), QPointF(r.left() - arrowLen, r.center().y() + off));
|
|
break;
|
|
case ResizeHandle::Right:
|
|
drawArrow(QPointF(r.right(), r.center().y() - off), QPointF(r.right() + arrowLen, r.center().y() - off));
|
|
drawArrow(QPointF(r.right(), r.center().y() + off), QPointF(r.right() + arrowLen, r.center().y() + off));
|
|
break;
|
|
case ResizeHandle::Top:
|
|
drawArrow(QPointF(r.center().x() - off, r.top()), QPointF(r.center().x() - off, r.top() - arrowLen));
|
|
drawArrow(QPointF(r.center().x() + off, r.top()), QPointF(r.center().x() + off, r.top() - arrowLen));
|
|
break;
|
|
case ResizeHandle::Bottom:
|
|
drawArrow(QPointF(r.center().x() - off, r.bottom()), QPointF(r.center().x() - off, r.bottom() + arrowLen));
|
|
drawArrow(QPointF(r.center().x() + off, r.bottom()), QPointF(r.center().x() + off, r.bottom() + arrowLen));
|
|
break;
|
|
case ResizeHandle::TopLeft:
|
|
case ResizeHandle::TopRight:
|
|
case ResizeHandle::BottomLeft:
|
|
case ResizeHandle::BottomRight:
|
|
// For corners, show arrows on both axes (simple version)
|
|
drawArrow(QPointF(r.right(), r.center().y()), QPointF(r.right() + arrowLen, r.center().y()));
|
|
drawArrow(QPointF(r.left(), r.center().y()), QPointF(r.left() - arrowLen, r.center().y()));
|
|
drawArrow(QPointF(r.center().x(), r.top()), QPointF(r.center().x(), r.top() - arrowLen));
|
|
drawArrow(QPointF(r.center().x(), r.bottom()), QPointF(r.center().x(), r.bottom() + arrowLen));
|
|
break;
|
|
default: break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void JFJochImage::Redraw() {
|
|
if (W*H <= 0)
|
|
return;
|
|
|
|
QGraphicsScene *currentScene = scene();
|
|
if (!currentScene) {
|
|
// First time - create a new scene
|
|
currentScene = new QGraphicsScene(this);
|
|
setScene(currentScene);
|
|
// Reset initial-fit state for a new scene
|
|
initial_fit_done_ = false;
|
|
image_item_ = nullptr; // new scene, old pointer invalid
|
|
}
|
|
|
|
// Perform initial fit only once per image size
|
|
fitToViewShorterSideOnce();
|
|
|
|
updateOverlay();
|
|
}
|
|
|
|
PixelColorMap JFJochImage::MakeColorMap() const {
|
|
// Bad pixel color
|
|
int r, g, b, a;
|
|
feature_color.getRgb(&r, &g, &b, &a);
|
|
auto bad_color = rgb{.r = static_cast<uint8_t>(r), .g = static_cast<uint8_t>(g), .b = static_cast<uint8_t>(b)};
|
|
|
|
const auto &lut_data = color_scale.LUTData();
|
|
const auto lutSize = static_cast<int>(lut_data.size());
|
|
const float lutScale = static_cast<float>(lutSize - 1);
|
|
const float range = foreground - background;
|
|
|
|
return PixelColorMap{
|
|
.lut = lut_data.data(),
|
|
.lut_size = lutSize,
|
|
.minv = background,
|
|
.range = range,
|
|
.inv_range = (range > 0) ? (lutScale / range) : 0.0f,
|
|
.inv_range_log = (range > 0) ? (lutScale / std::log1p(range)) : 0.0f,
|
|
.hdr = hdr_mode,
|
|
.gap = color_scale.Apply(ColorScaleSpecial::Gap),
|
|
.bad = bad_color,
|
|
// Saturation color
|
|
.saturated = show_saturation ? bad_color : color_scale.Apply(1.0f),
|
|
};
|
|
}
|
|
|
|
void JFJochImage::ColorRow(size_t y, const PixelColorMap &map, QRgb *out) const {
|
|
const float *row = &image_fp[y * W];
|
|
|
|
for (size_t x = 0; x < W; ++x) {
|
|
const float fp = row[x];
|
|
|
|
rgb c;
|
|
if (!std::isfinite(fp))
|
|
c = std::isnan(fp) ? map.gap : (std::signbit(fp) ? map.bad : map.saturated);
|
|
else
|
|
c = map.Apply(fp);
|
|
|
|
out[x] = qRgb(c.r, c.g, c.b);
|
|
}
|
|
}
|
|
|
|
void JFJochImage::RenderImage() {
|
|
if (qimg_buffer_.width() != int(W) || qimg_buffer_.height() != int(H))
|
|
qimg_buffer_ = QImage(int(W), int(H), QImage::Format_RGB32);
|
|
|
|
// Take the data pointer once, here: scanLine() is non-const, so calling it from the
|
|
// workers below would have each of them detach the (possibly shared) buffer in parallel.
|
|
uchar *const bits = qimg_buffer_.bits();
|
|
const qsizetype stride = qimg_buffer_.bytesPerLine();
|
|
|
|
const PixelColorMap map = MakeColorMap();
|
|
|
|
QVector<int> rows;
|
|
rows.reserve(H);
|
|
for (int y = 0; y < H; ++y) rows.push_back(y);
|
|
|
|
QtConcurrent::blockingMap(rows, [&](int y) {
|
|
ColorRow(y, map, reinterpret_cast<QRgb *>(bits + y * stride));
|
|
});
|
|
|
|
image_dirty_ = true;
|
|
}
|
|
|
|
void JFJochImage::centerOnSpot(QPointF point) {
|
|
// If W or H = 0, then conditions are never satisfied
|
|
if (point.x() >= 0 && point.x() < W && point.y() >= 0 && point.y() < H)
|
|
centerOn(point);
|
|
emitViewportChanged();
|
|
}
|
|
|
|
void JFJochImage::emitViewportChanged() {
|
|
if (m_applyingViewport || !scene())
|
|
return;
|
|
emit viewportChanged(transform(), mapToScene(viewport()->rect().center()));
|
|
}
|
|
|
|
void JFJochImage::applyViewport(QTransform transform, QPointF center) {
|
|
if (m_applyingViewport || !scene())
|
|
return;
|
|
m_applyingViewport = true;
|
|
// As in wheelEvent: one rebuild, not one per scrollbar move
|
|
suppress_overlay_update_ = true;
|
|
setTransform(transform);
|
|
scale_factor = transform.m11();
|
|
centerOn(center);
|
|
suppress_overlay_update_ = false;
|
|
updateOverlay();
|
|
m_applyingViewport = false;
|
|
}
|
|
|
|
void JFJochImage::writePixelLabels() {
|
|
|
|
static QFont font([] {
|
|
QFont f("DejaVu Sans Mono");
|
|
f.setStyleHint(QFont::TypeWriter);
|
|
f.setPixelSize(1);
|
|
return f;
|
|
}());
|
|
static const QString kGap = QStringLiteral("Gap");
|
|
static const QString kErr = QStringLiteral("Err");
|
|
static const QString kSat = QStringLiteral("Sat");
|
|
|
|
QRectF visibleRect = mapToScene(viewport()->geometry()).boundingRect();
|
|
|
|
const int startX = std::max(0, static_cast<int>(std::floor(visibleRect.left())));
|
|
const int endX = std::min(static_cast<int>(W), static_cast<int>(std::ceil(visibleRect.right())));
|
|
const int startY = std::max(0, static_cast<int>(std::floor(visibleRect.top())));
|
|
const int endY = std::min(static_cast<int>(H), static_cast<int>(std::ceil(visibleRect.bottom())));
|
|
|
|
const int visW = std::max(0, endX - startX);
|
|
const int visH = std::max(0, endY - startY);
|
|
int maxLabels = 5000;
|
|
|
|
// Choose thresholds that fit your UI width
|
|
constexpr float kMinFixed = 1e-3;
|
|
constexpr float kMaxFixed = 1e5;
|
|
|
|
if (visW * visH <= maxLabels) {
|
|
EnsurePixelValues();
|
|
|
|
QString numBuf; // reused buffer
|
|
|
|
for (int y = startY; y < endY; y ++) {
|
|
for (int x = startX; x < endX; x++) {
|
|
const int idx = y * W + x;
|
|
const float val = image_fp[idx];
|
|
|
|
const auto absVal = std::abs(val);
|
|
const auto nearest = std::nearbyint(val);
|
|
|
|
const QString* pText = nullptr;
|
|
if (std::isnan(val)) {
|
|
pText = &kGap;
|
|
} else if (std::isinf(val)) {
|
|
pText = std::signbit(val) ? &kErr : &kSat;
|
|
} else if (val == 0.0f) {
|
|
numBuf = QStringLiteral("0");
|
|
pText = &numBuf;
|
|
} else if (absVal >= kMinFixed && absVal < kMaxFixed) {
|
|
if (std::abs(val - nearest) < 1e-6)
|
|
numBuf = QString::number(static_cast<qint64>(val));
|
|
else if (absVal < 1e4)
|
|
numBuf = QString::number(val, 'f', label_decimals_);
|
|
else
|
|
numBuf = QString::number(val, 'f', std::min(label_decimals_, 2));
|
|
pText = &numBuf;
|
|
} else {
|
|
numBuf = QString::number(val, 'e', 1);
|
|
pText = &numBuf;
|
|
}
|
|
|
|
auto *textItem = new QGraphicsSimpleTextItem(*pText);
|
|
textItem->setFont(font);
|
|
// Read the colour back from the rendered image rather than keeping a
|
|
// full-size mirror of it around for the few pixels that get a label.
|
|
const QRgb pxl = qimg_buffer_.pixel(x, y);
|
|
if (luminance(rgb{.r = static_cast<uint8_t>(qRed(pxl)),
|
|
.g = static_cast<uint8_t>(qGreen(pxl)),
|
|
.b = static_cast<uint8_t>(qBlue(pxl))}) > 128.0)
|
|
textItem->setBrush(Qt::black);
|
|
else
|
|
textItem->setBrush(Qt::white);
|
|
|
|
textItem->setPos(x + 0.3, y + 0.2);
|
|
textItem->setTransform(QTransform::fromScale(0.2, 0.2));
|
|
scene()->addItem(textItem);
|
|
addOverlayItem(textItem);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void JFJochImage::resetScenePointers() {
|
|
image_item_ = nullptr;
|
|
overlay_items_.clear();
|
|
}
|
|
|
|
void JFJochImage::updateOverlay() {
|
|
if (!scene() || W * H <= 0) return;
|
|
|
|
beforeOverlayCleared();
|
|
|
|
// Remove only overlay items, keep the image item persistent
|
|
for (auto *item : overlay_items_)
|
|
scene()->removeItem(item);
|
|
qDeleteAll(overlay_items_);
|
|
overlay_items_.clear();
|
|
|
|
// Ensure the image item exists and is up-to-date. Refreshing it marks the whole item
|
|
// dirty, which forces a full repaint of the viewport, so only do it when the image
|
|
// really changed - not on every pan and zoom.
|
|
if (!image_item_) {
|
|
image_item_ = new JFJochImageItem(qimg_buffer_);
|
|
image_item_->setZValue(0);
|
|
scene()->addItem(image_item_);
|
|
image_dirty_ = false;
|
|
} else if (image_dirty_) {
|
|
image_item_->refresh();
|
|
image_dirty_ = false;
|
|
}
|
|
|
|
if (scale_factor > 30.0)
|
|
writePixelLabels();
|
|
|
|
DrawROI();
|
|
|
|
addCustomOverlay();
|
|
}
|
|
|
|
void JFJochImage::addCustomOverlay() {}
|
|
|
|
ROIMessage JFJochImage::accumulateROI(
|
|
int64_t xmin, int64_t xmax,
|
|
int64_t ymin, int64_t ymax,
|
|
const std::function<bool(int64_t, int64_t)> &inside) {
|
|
int64_t roi_val = 0;
|
|
uint64_t roi_val_2 = 0;
|
|
int64_t roi_max = INT64_MIN;
|
|
uint64_t roi_npixel = 0;
|
|
uint64_t roi_npixel_masked = 0;
|
|
float x_weighted = 0.0f;
|
|
float y_weighted = 0.0f;
|
|
|
|
// Clamp bounds defensively to the image
|
|
xmin = std::max<int64_t>(0, xmin);
|
|
ymin = std::max<int64_t>(0, ymin);
|
|
xmax = std::min<int64_t>(W, xmax);
|
|
ymax = std::min<int64_t>(H, ymax);
|
|
|
|
for (int64_t y = ymin; y < ymax; ++y) {
|
|
for (int64_t x = xmin; x < xmax; ++x) {
|
|
if (!inside(x, y)) continue;
|
|
|
|
float val = image_fp[x + W * y];
|
|
|
|
if (std::isinf(val)) {
|
|
roi_npixel_masked++;
|
|
} else if (std::isfinite(val)) {
|
|
x_weighted += val * x;
|
|
y_weighted += val * y;
|
|
roi_val += val;
|
|
roi_val_2 += val * val;
|
|
if (val > roi_max) roi_max = val;
|
|
roi_npixel++;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ROIMessage{
|
|
.sum = roi_val,
|
|
.sum_square = roi_val_2,
|
|
.max_count = roi_max,
|
|
.pixels = roi_npixel,
|
|
.pixels_masked = roi_npixel_masked,
|
|
.x_weighted = std::lroundf(x_weighted),
|
|
.y_weighted = std::lroundf(y_weighted),
|
|
};
|
|
}
|
|
|
|
void JFJochImage::CalcROI() {
|
|
if (W*H == 0) {
|
|
auto msg = ROIMessage{
|
|
.pixels = 0,
|
|
.pixels_masked = 0};
|
|
emit roiCalculated(msg);
|
|
return;
|
|
}
|
|
|
|
auto box_norm = roiBox.normalized();
|
|
|
|
// accumulateROI only reads pixel values inside the box, so an empty ROI needs none
|
|
if (box_norm.width() > 0 && box_norm.height() > 0)
|
|
EnsurePixelValues();
|
|
|
|
// Using the rectangle as-is; you can adjust inclusivity if needed
|
|
int64_t xmin = box_norm.left();
|
|
int64_t xmax = box_norm.right();
|
|
int64_t ymin = box_norm.top();
|
|
int64_t ymax = box_norm.bottom();
|
|
|
|
ROIMessage msg{};
|
|
if (roi_type == RoiType::RoiBox)
|
|
msg = accumulateROI(
|
|
xmin, xmax, ymin, ymax,
|
|
[](int64_t, int64_t) { return true; } // everything in the rectangle
|
|
);
|
|
else {
|
|
QPointF delta = roiStartPos - roiEndPos;
|
|
double radius2 = delta.x() * delta.x() + delta.y() * delta.y();
|
|
const float cx = static_cast<float>(roiStartPos.x());
|
|
const float cy = static_cast<float>(roiStartPos.y());
|
|
const float r2 = static_cast<float>(radius2);
|
|
msg = accumulateROI(
|
|
xmin, xmax, ymin, ymax,
|
|
[cx, cy, r2](int64_t x, int64_t y) {
|
|
const float dx = static_cast<float>(x) - cx;
|
|
const float dy = static_cast<float>(y) - cy;
|
|
const float dist2 = dx * dx + dy * dy;
|
|
return dist2 <= r2;
|
|
}
|
|
);
|
|
}
|
|
emit roiCalculated(msg);
|
|
}
|
|
|
|
void JFJochImage::fitToView() {
|
|
initial_fit_done_ = false;
|
|
Redraw();
|
|
}
|
|
|
|
void JFJochImage::fitToViewShorterSideOnce() {
|
|
if (initial_fit_done_ && prev_H == H && prev_W == W)
|
|
return;
|
|
|
|
|
|
if (W == 0 || H == 0 || !viewport())
|
|
return;
|
|
|
|
prev_H = H;
|
|
prev_W = W;
|
|
|
|
// Guard against tiny or zero viewport (happens before layout settles)
|
|
const QSize vp = viewport()->size();
|
|
if (vp.width() < 8 || vp.height() < 8) {
|
|
// remember last tried size; resizeEvent/showEvent will retry
|
|
last_fit_viewport_ = vp;
|
|
return;
|
|
}
|
|
|
|
if (scene())
|
|
scene()->setSceneRect(QRectF(0, 0, static_cast<qreal>(W), static_cast<qreal>(H)));
|
|
|
|
const auto oldAnchor = transformationAnchor();
|
|
setTransformationAnchor(QGraphicsView::AnchorViewCenter);
|
|
setTransform(QTransform());
|
|
|
|
fitInView(QRectF(0, 0, static_cast<qreal>(W), static_cast<qreal>(H)), Qt::KeepAspectRatio);
|
|
|
|
scale_factor = transform().m11();
|
|
centerOn(QPointF(static_cast<qreal>(W) * 0.5, static_cast<qreal>(H) * 0.5));
|
|
setTransformationAnchor(oldAnchor);
|
|
|
|
initial_fit_done_ = true;
|
|
last_fit_viewport_ = vp;
|
|
}
|
|
|
|
void JFJochImage::adjustForeground(bool input) {
|
|
m_adjustForegroundWithWheel = input;
|
|
}
|
|
|
|
void JFJochImage::beforeOverlayCleared() {}
|
|
|
|
double JFJochImage::GetScaleFactor() const {
|
|
return scale_factor;
|
|
}
|
|
|
|
void JFJochImage::setZoom(double input) {
|
|
if (std::isfinite(input) && input > 0) {
|
|
scale_factor = input;
|
|
if (!scene())
|
|
return;
|
|
setTransform(QTransform::fromScale(input, input));
|
|
updateOverlay();
|
|
emitViewportChanged();
|
|
}
|
|
}
|