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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "imageviewer.h"
#include "debuggerinternalconstants.h"
#include "debuggertr.h"
#include <coreplugin/editormanager/editormanager.h>
#include <coreplugin/editormanager/ieditor.h>
#include <coreplugin/idocument.h>
#include <utils/temporaryfile.h>
#include <QAction>
#include <QLabel>
#include <QMenu>
#include <QImage>
#include <QVBoxLayout>
#include <QMouseEvent>
#include <QScrollArea>
#include <QClipboard>
#include <QApplication>
#include <QPainter>
#include <QDir>
namespace Debugger::Internal {
// Widget showing the image in a 1-pixel frame with context menu.
class ImageWidget : public QWidget
{
Q_OBJECT
public:
ImageWidget() = default;
void setImage(const QImage &image);
const QImage &image() const { return m_image; }
signals:
void clicked(const QString &message);
protected:
void paintEvent(QPaintEvent *) override;
void mousePressEvent(QMouseEvent *ev) override;
private:
QImage m_image;
};
void ImageWidget::setImage(const QImage &image)
{
setFixedSize(image.size() + QSize(2, 2));
m_image = image;
update();
}
void ImageWidget::mousePressEvent(QMouseEvent *ev)
{
const QPoint imagePos = ev->pos() - QPoint(1, 1);
if (m_image.isNull() || imagePos.x() < 0 || imagePos.y() < 0 || imagePos.x() >= m_image.width() || imagePos.y() >= m_image.height()) {
emit clicked(QString());
} else {
const QRgb color = m_image.pixel(imagePos);
const QString message =
Tr::tr("Color at %1,%2: red: %3 green: %4 blue: %5 alpha: %6").
arg(imagePos.x()).arg(imagePos.y()).
arg(qRed(color)).arg(qGreen(color)).arg(qBlue(color)).arg(qAlpha(color));
emit clicked(message);
}
}
void ImageWidget::paintEvent(QPaintEvent *)
{
if (m_image.isNull())
return;
QPainter painter(this);
QRect rect(QPoint(0, 0), m_image.size() + QSize(1, 1));
painter.drawRect(rect);
painter.drawImage(QPoint(1, 1), m_image);
}
ImageViewer::ImageViewer(QWidget *parent)
: QWidget(parent)
, m_scrollArea(new QScrollArea(this))
, m_imageWidget(new ImageWidget)
, m_infoLabel(new QLabel)
{
auto mainLayout = new QVBoxLayout(this);
mainLayout->addWidget(m_infoLabel);
mainLayout->addWidget(m_scrollArea);
m_scrollArea->setWidget(m_imageWidget);
connect(m_imageWidget, &ImageWidget::clicked, this, &ImageViewer::clicked);
}
void ImageViewer::setImage(const QImage &image)
{
m_imageWidget->setImage(image);
clicked(QString());
}
void ImageViewer::setInfo(const QString &info)
{
m_info = info;
clicked(QString());
}
void ImageViewer::clicked(const QString &message)
{
const QString text = m_info + '\n'
+ (message.isEmpty() ? Tr::tr("<Click to display color>") : message);
m_infoLabel->setText(text);
}
// Open Qt Creator's image viewer
static void openImageViewer(const QImage &image)
{
QString fileName;
{
Utils::TemporaryFile temporaryFile("qtcreatorXXXXXX.png");
temporaryFile.setAutoRemove(false);
image.save(&temporaryFile);
fileName = temporaryFile.fileName();
temporaryFile.close();
}
if (Core::IEditor *e = Core::EditorManager::openEditor(Utils::FilePath::fromString(fileName)))
e->document()->setProperty(Debugger::Constants::OPENED_BY_DEBUGGER, QVariant(true));
}
void ImageViewer::contextMenuEvent(QContextMenuEvent *ev)
{
// Offer copy and open in Creator's image viewer.
const QImage &image = m_imageWidget->image();
const bool hasImage = !image.isNull();
QMenu menu;
QAction *copyAction = menu.addAction(Tr::tr("Copy Image"));
copyAction->setShortcut(QKeySequence::Copy);
QAction *imageViewerAction = menu.addAction(Tr::tr("Open Image Viewer"));
copyAction->setEnabled(hasImage);
imageViewerAction->setEnabled(hasImage);
QAction *action = menu.exec(ev->globalPos());
if (action == copyAction)
QApplication::clipboard()->setImage(image);
else if (action == imageViewerAction)
openImageViewer(image);
}
//
//
//
PlotViewer::PlotViewer(QWidget *parent)
: QWidget(parent)
{
}
void PlotViewer::setData(const PlotViewer::Data &data)
{
m_data = data;
update();
}
void PlotViewer::setInfo(const QString &description)
{
m_info = description;
update();
}
void PlotViewer::paintEvent(QPaintEvent *)
{
QPainter pain(this);
const int n = int(m_data.size());
const int w = width();
const int h = height();
const int b = 10; // Border width.
pain.fillRect(rect(), Qt::white);
double ymin = 0;
double ymax = 0;
for (int i = 0; i < n; ++i) {
const double v = m_data.at(i);
if (v < ymin)
ymin = v;
else if (v > ymax)
ymax = v;
}
const double d = ymin == ymax ? (h / 2 - b) : (ymax - ymin);
const int k = 1; // Length of cross marker arms.
for (int i = 0; i + 1 < n; ++i) {
// Lines between points.
const int x1 = b + i * (w - 2 * b) / (n - 1);
const int x2 = b + (i + 1) * (w - 2 * b) / (n - 1);
const int y1 = h - (b + int((m_data[i] - ymin) * (h - 2 * b) / d));
const int y2 = h - (b + int((m_data[i + 1] - ymin) * (h - 2 * b) / d));
pain.drawLine(x1, y1, x2, y2);
if (i == 0) {
// Little cross marker on first point
pain.drawLine(x1 - k, y1 - k, x1 + k, y1 + k);
pain.drawLine(x1 + k, y1 - k, x1 - k, y1 + k);
}
// ... and all subsequent points.
pain.drawLine(x2 - k, y2 - k, x2 + k, y2 + k);
pain.drawLine(x2 + k, y2 - k, x2 - k, y2 + k);
}
if (n) {
pain.drawText(10, 10,
QString::fromLatin1("%5 items. X: %1..%2, Y: %3...%4").arg(0).arg(n).arg(ymin).arg(ymax).arg(n));
} else {
pain.drawText(10, 10,
QString::fromLatin1("Container is empty"));
}
}
} // Debugger::Internal
#include "imageviewer.moc"
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