summaryrefslogtreecommitdiffstats
path: root/tools/qmldebugger/canvasframerate.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'tools/qmldebugger/canvasframerate.cpp')
-rw-r--r--tools/qmldebugger/canvasframerate.cpp323
1 files changed, 323 insertions, 0 deletions
diff --git a/tools/qmldebugger/canvasframerate.cpp b/tools/qmldebugger/canvasframerate.cpp
new file mode 100644
index 0000000..0d23050
--- /dev/null
+++ b/tools/qmldebugger/canvasframerate.cpp
@@ -0,0 +1,323 @@
+#include "canvasframerate.h"
+#include <QtGui/qwidget.h>
+#include <QtGui/qpainter.h>
+#include <QtGui/qscrollbar.h>
+#include <QtDeclarative/qmldebugclient.h>
+#include <QtCore/qdebug.h>
+#include <QtCore/qstringlist.h>
+#include <QtCore/qdatastream.h>
+#include <QtGui/qboxlayout.h>
+#include <QResizeEvent>
+#include <QShowEvent>
+#include <QTabWidget>
+#include <QPushButton>
+#include <QLineEdit>
+#include <QCheckBox>
+#include <QSpinBox>
+#include <QLabel>
+
+QT_BEGIN_NAMESPACE
+
+class QLineGraph : public QWidget
+{
+Q_OBJECT
+public:
+ QLineGraph(QWidget * = 0);
+
+ void setPosition(int);
+
+public slots:
+ void addSample(int, int, int, bool);
+ void setResolutionForHeight(int);
+
+protected:
+ virtual void paintEvent(QPaintEvent *);
+ virtual QSize sizeHint() const;
+
+private slots:
+ void scrollbarChanged(int);
+
+private:
+ void updateScrollbar();
+ void drawSample(QPainter *, int, const QRect &);
+ void drawTime(QPainter *, const QRect &);
+ struct Sample {
+ int sample[3];
+ bool isBreak;
+ };
+ QList<Sample> _samples;
+
+ QScrollBar sb;
+ int position;
+ int samplesPerWidth;
+ int resolutionForHeight;
+ bool ignoreScroll;
+};
+
+QLineGraph::QLineGraph(QWidget *parent)
+: QWidget(parent), sb(Qt::Horizontal, this), position(-1), samplesPerWidth(99), resolutionForHeight(50), ignoreScroll(false)
+{
+ sb.setMaximum(0);
+ sb.setMinimum(0);
+ sb.setSingleStep(1);
+
+ QVBoxLayout *layout = new QVBoxLayout;
+ setLayout(layout);
+ layout->addStretch(2);
+ layout->addWidget(&sb);
+ QObject::connect(&sb, SIGNAL(valueChanged(int)), this, SLOT(scrollbarChanged(int)));
+}
+
+QSize QLineGraph::sizeHint() const
+{
+ return QSize(800, 600);
+}
+
+void QLineGraph::scrollbarChanged(int v)
+{
+ if(ignoreScroll)
+ return;
+
+ if (v == sb.maximum())
+ position = -1;
+ else
+ position = v;
+ update();
+}
+
+void QLineGraph::updateScrollbar()
+{
+ ignoreScroll = true;
+ sb.setMaximum(qMax(0, _samples.count() - samplesPerWidth - 1));
+
+ if(position == -1) {
+ sb.setValue(sb.maximum());
+ } else {
+ sb.setValue(position);
+ }
+ ignoreScroll = false;
+}
+
+void QLineGraph::addSample(int a, int b, int d, bool isBreak)
+{
+ Sample s;
+ s.isBreak = isBreak;
+ s.sample[0] = a;
+ s.sample[1] = b;
+ s.sample[2] = d;
+ _samples << s;
+ updateScrollbar();
+ update();
+}
+
+void QLineGraph::setPosition(int p)
+{
+ scrollbarChanged(p);
+}
+
+void QLineGraph::drawTime(QPainter *p, const QRect &rect)
+{
+ if(_samples.isEmpty())
+ return;
+
+ int first = position;
+ if(first == -1)
+ first = qMax(0, _samples.count() - samplesPerWidth - 1);
+ int last = qMin(_samples.count() - 1, first + samplesPerWidth);
+
+ qreal scaleX = qreal(rect.width()) / qreal(samplesPerWidth);
+
+ int t = 0;
+
+ for(int ii = first; ii <= last; ++ii) {
+ int sampleTime = _samples.at(ii).sample[2] / 1000;
+ if(sampleTime != t) {
+
+ int xEnd = rect.left() + scaleX * (ii - first);
+ p->drawLine(xEnd, rect.bottom(), xEnd, rect.bottom() + 7);
+
+ QRect text(xEnd - 30, rect.bottom() + 10, 60, 30);
+
+ p->drawText(text, Qt::AlignHCenter | Qt::AlignTop, QString::number(_samples.at(ii).sample[2]));
+
+ t = sampleTime;
+ }
+ }
+
+}
+
+void QLineGraph::drawSample(QPainter *p, int s, const QRect &rect)
+{
+ if(_samples.isEmpty())
+ return;
+
+ int first = position;
+ if(first == -1)
+ first = qMax(0, _samples.count() - samplesPerWidth - 1);
+ int last = qMin(_samples.count() - 1, first + samplesPerWidth);
+
+ qreal scaleY = qreal(rect.height()) / resolutionForHeight;
+ qreal scaleX = qreal(rect.width()) / qreal(samplesPerWidth);
+
+ int xEnd;
+ int lastXEnd = rect.left();
+
+ p->save();
+ p->setPen(Qt::NoPen);
+ for(int ii = first + 1; ii <= last; ++ii) {
+
+ xEnd = rect.left() + scaleX * (ii - first);
+ int yEnd = rect.bottom() - _samples.at(ii).sample[s] * scaleY;
+
+ if (!(s == 0 && _samples.at(ii).isBreak))
+ p->drawRect(QRect(lastXEnd, yEnd, scaleX, _samples.at(ii).sample[s] * scaleY));
+
+ lastXEnd = xEnd;
+ }
+ p->restore();
+}
+
+void QLineGraph::paintEvent(QPaintEvent *)
+{
+ QPainter p(this);
+ p.setRenderHint(QPainter::Antialiasing);
+
+
+ QRect r(50, 10, width() - 60, height() - 60);
+ p.setBrush(QColor("lightsteelblue"));
+ drawSample(&p, 0, r);
+
+ p.setBrush(QColor("pink"));
+ drawSample(&p, 1, r);
+
+ p.setBrush(Qt::NoBrush);
+ p.drawRect(r);
+
+ for(int ii = 0; ii <= resolutionForHeight; ++ii) {
+ int y = 1 + r.bottom() - ii * r.height() / resolutionForHeight;
+
+ if((ii % 10) == 0) {
+ p.drawLine(r.left() - 20, y, r.left(), y);
+ QRect text(r.left() - 20 - 53, y - 10, 50, 20);
+ p.drawText(text, Qt::AlignRight | Qt::AlignVCenter, QString::number(ii));
+ } else {
+ p.drawLine(r.left() - 7, y, r.left(), y);
+ }
+ }
+
+ drawTime(&p, r);
+}
+
+void QLineGraph::setResolutionForHeight(int resolution)
+{
+ resolutionForHeight = resolution;
+ update();
+}
+
+class CanvasFrameRatePlugin : public QmlDebugClient
+{
+Q_OBJECT
+public:
+ CanvasFrameRatePlugin(QmlDebugConnection *client);
+
+signals:
+ void sample(int, int, int, bool);
+
+protected:
+ virtual void messageReceived(const QByteArray &);
+
+private:
+ int lb;
+ int ld;
+};
+
+CanvasFrameRatePlugin::CanvasFrameRatePlugin(QmlDebugConnection *client)
+: QmlDebugClient(QLatin1String("CanvasFrameRate"), client), lb(-1)
+{
+}
+
+void CanvasFrameRatePlugin::messageReceived(const QByteArray &data)
+{
+ QByteArray rwData = data;
+ QDataStream stream(&rwData, QIODevice::ReadOnly);
+
+ int b; int c; int d; bool isBreak;
+ stream >> b >> c >> d >> isBreak;
+
+ if (lb != -1)
+ emit sample(c, lb, ld, isBreak);
+
+ lb = b;
+ ld = d;
+}
+
+CanvasFrameRate::CanvasFrameRate(QmlDebugConnection *client, QWidget *parent)
+: QWidget(parent)
+{
+ m_plugin = new CanvasFrameRatePlugin(client);
+
+ QVBoxLayout *layout = new QVBoxLayout;
+ layout->setContentsMargins(0,0,0,0);
+ layout->setSpacing(0);
+ setLayout(layout);
+
+ m_tabs = new QTabWidget(this);
+ layout->addWidget(m_tabs);
+
+ QHBoxLayout *bottom = new QHBoxLayout;
+ bottom->setSpacing(5);
+ layout->addLayout(bottom);
+
+ QLabel *label = new QLabel("Resolution", this);
+ bottom->addWidget(label);
+
+ m_spin = new QSpinBox(this);
+ m_spin->setRange(50,200);
+ m_spin->setValue(50);
+ m_spin->setSuffix("ms");
+ bottom->addWidget(m_spin);
+
+ bottom->addStretch(2);
+
+ QCheckBox *check = new QCheckBox("Enable", this);
+ bottom->addWidget(check);
+ QObject::connect(check, SIGNAL(stateChanged(int)),
+ this, SLOT(stateChanged(int)));
+
+ QPushButton *pb = new QPushButton(tr("New Tab"), this);
+ QObject::connect(pb, SIGNAL(clicked()), this, SLOT(newTab()));
+ bottom->addWidget(pb);
+
+ newTab();
+}
+
+void CanvasFrameRate::newTab()
+{
+ if (m_tabs->count()) {
+ QWidget *w = m_tabs->widget(m_tabs->count() - 1);
+ QObject::disconnect(m_plugin, SIGNAL(sample(int,int,int,bool)),
+ w, SLOT(addSample(int,int,int,bool)));
+ }
+
+ int id = m_tabs->count();
+
+ QLineGraph *graph = new QLineGraph(this);
+ QObject::connect(m_plugin, SIGNAL(sample(int,int,int,bool)),
+ graph, SLOT(addSample(int,int,int,bool)));
+ QObject::connect(m_spin, SIGNAL(valueChanged(int)), graph, SLOT(setResolutionForHeight(int)));
+
+ QString name = QLatin1String("Graph ") + QString::number(id);
+ m_tabs->addTab(graph, name);
+ m_tabs->setCurrentIndex(id);
+}
+
+void CanvasFrameRate::stateChanged(int s)
+{
+ bool checked = s != 0;
+
+ static_cast<QmlDebugClient *>(m_plugin)->setEnabled(checked);
+}
+
+QT_END_NAMESPACE
+
+#include "canvasframerate.moc"
generated by cgit v0.12 at 2025-02-15 04:00:38 (GMT)