add CircleIndicator

libs/widgets/circleindicator.cpp

@@ -0,0 +1,174 @@
+#include "circleindicator.h"
+
+#include "qad_types.h"
+
+#include <QApplication>
+#include <QBoxLayout>
+#include <QLayout>
+#include <QPainter>
+#include <QPainterPath>
+#include <QStyleOption>
+#include <qmath.h>
+
+template<typename T>
+inline T qClamp(T v, T min, T max) {
+	return qMin<T>(max, qMax<T>(min, v));
+}
+
+
+CircleIndicator::CircleIndicator(QWidget * parent): QWidget(parent) {
+	init();
+}
+
+
+CircleIndicator::~CircleIndicator() {}
+
+
+int CircleIndicator::heightForWidth(int) const {
+	return width();
+}
+
+
+bool CircleIndicator::hasHeightForWidth() const {
+	return false;
+}
+
+
+void CircleIndicator::init() {
+	connect(&anim, &QVariantAnimation::valueChanged, this, [this](QVariant v) {
+		m_value_visual = v.toDouble();
+		update();
+	});
+	anim.setDuration(200);
+	anim.setEasingCurve(QEasingCurve::OutQuad);
+	fill_color   = QColor(255, 245, 60);
+	back_color   = QColor(216, 216, 216);
+	border_color = Qt::darkGray;
+}
+
+
+QSize CircleIndicator::minimumSizeHint() const {
+	return QSize(40, 40) * appScale();
+}
+
+
+QSize CircleIndicator::sizeHint() const {
+	return QSize(120, 120) * appScale();
+}
+
+
+void CircleIndicator::paintEvent(QPaintEvent *) {
+	QPainter p(this);
+	p.setRenderHint(QPainter::Antialiasing);
+	p.setRenderHint(QPainter::SmoothPixmapTransform);
+	float w = width(), h = height(), r = qMin<float>(w, h) / 2.f, thick = qMax<double>(1., r / 80.);
+	r -= thick;
+	float thin = qMax<double>(1., thick / 3.), lr = r * bar_ / 100.;
+	p.translate(w / 2.f, h / 2.f);
+	p.save();
+	p.rotate(m_angle_offset + 90.);
+	QRectF rct(-r, -r, r + r, r + r);
+	double range = maximum() - minimum();
+	double nv    = qClamp<double>((m_value_visual - minimum()) / qMax(range, 1.E-3), 0., 1.) * 100.;
+	QPainterPath path, path2;
+	QPointF tp;
+	path.arcMoveTo(rct, angle_gap);
+	tp = path.currentPosition();
+	path.arcTo(rct, angle_gap, 360 - angle_gap - angle_gap);
+	rct.adjust(lr, lr, -lr, -lr);
+	path2.arcMoveTo(rct, -angle_gap);
+	path2.arcTo(rct, -angle_gap, -360 + angle_gap + angle_gap);
+	path2.lineTo(tp);
+	path.connectPath(path2);
+	p.setPen(QPen(border_color, thick));
+	QConicalGradient grad;
+	double v = qClamp((1. - nv / (100. - thin / 3.6)) * ((360. - angle_gap - angle_gap) / 360.) + (angle_gap / 360.), 0., 1.);
+	grad.setColorAt(1., fill_color);
+	grad.setColorAt(qClamp(v + thin / 360., 0., 1.), fill_color);
+	grad.setColorAt(v, back_color);
+	grad.setColorAt(0., back_color);
+	p.setBrush(grad);
+	p.drawPath(path);
+
+	float hs = (r - lr) / 1.2;
+	QRect ir(-hs, -hs, hs + hs, hs + hs);
+	p.restore();
+	if (m_text.isEmpty()) return;
+	p.setPen(palette().text().color());
+	auto tbr = p.boundingRect({}, m_text);
+	if (tbr.isEmpty()) return;
+	double tscl = qMin(ir.width() / tbr.width(), ir.height() / tbr.height());
+	p.scale(tscl, tscl);
+	p.drawText(ir, Qt::AlignCenter, m_text);
+}
+
+
+void CircleIndicator::animate() {
+	anim.stop();
+	anim.setStartValue(m_value_visual);
+	anim.setEndValue(m_value);
+	anim.start();
+}
+
+
+void CircleIndicator::setValue(double v) {
+	if (m_value == v) return;
+	m_value = qClamp(v, minimum(), maximum());
+	animate();
+}
+
+
+void CircleIndicator::setMinimum(double ll) {
+	m_minimum = ll;
+	setValue(qClamp(value(), minimum(), maximum()));
+	update();
+}
+
+
+void CircleIndicator::setMaximum(double hl) {
+	m_maximum = hl;
+	setValue(qClamp(value(), minimum(), maximum()));
+	update();
+}
+
+
+void CircleIndicator::setFillColor(const QColor & c) {
+	fill_color = c;
+	update();
+}
+
+
+void CircleIndicator::setBorderColor(const QColor & c) {
+	border_color = c;
+	update();
+}
+
+
+void CircleIndicator::setText(const QString & t) {
+	m_text = t;
+	update();
+}
+
+
+void CircleIndicator::setBackColor(const QColor & c) {
+	back_color = c;
+	update();
+}
+
+
+void CircleIndicator::setAngleGap(double a) {
+	angle_gap = qClamp<double>(a, 0., 180.);
+	update();
+}
+
+
+void CircleIndicator::setBarSize(double a) {
+	bar_ = qClamp<double>(a, 0., 100.);
+	update();
+}
+
+
+void CircleIndicator::setAngleStartOffset(double a) {
+	m_angle_offset = a;
+	update();
+}

libs/widgets/circleindicator.h

@@ -0,0 +1,80 @@
+#ifndef circleindicator_H
+#define circleindicator_H
+
+#include "qad_widgets_export.h"
+
+#include <QDebug>
+#include <QTime>
+#include <QVariantAnimation>
+#include <QWidget>
+
+
+class QAD_WIDGETS_EXPORT CircleIndicator: public QWidget {
+	Q_OBJECT
+	Q_PROPERTY(QColor fillColor READ fillColor WRITE setFillColor)
+	Q_PROPERTY(QColor backColor READ backColor WRITE setBackColor)
+	Q_PROPERTY(QColor borderColor READ borderColor WRITE setBorderColor)
+	Q_PROPERTY(QString text READ text WRITE setText)
+	Q_PROPERTY(double angleStartOffset READ angleStartOffset WRITE setAngleStartOffset)
+	Q_PROPERTY(double angleGap READ angleGap WRITE setAngleGap)
+	Q_PROPERTY(double barSize READ barSize WRITE setBarSize)
+	Q_PROPERTY(double value READ value WRITE setValue)
+	Q_PROPERTY(double minimum READ minimum WRITE setMinimum)
+	Q_PROPERTY(double maximum READ maximum WRITE setMaximum)
+
+public:
+	explicit CircleIndicator(QWidget * parent = 0);
+	~CircleIndicator();
+
+	double value() const { return m_value; }
+	double minimum() const { return m_minimum; }
+	double maximum() const { return m_maximum; }
+
+	QColor backColor() const { return back_color; }
+	void setBackColor(const QColor & c);
+
+	QColor fillColor() const { return fill_color; }
+	void setFillColor(const QColor & c);
+
+	QColor borderColor() const { return border_color; }
+	void setBorderColor(const QColor & c);
+
+	QString text() const { return m_text; }
+	void setText(const QString & t);
+
+	double angleStartOffset() const { return m_angle_offset; }
+	void setAngleStartOffset(double a);
+
+	double angleGap() const { return angle_gap; }
+	void setAngleGap(double a);
+
+	double barSize() const { return bar_; }
+	void setBarSize(double a);
+
+	int heightForWidth(int) const;
+	bool hasHeightForWidth() const;
+
+private:
+	void init();
+	QSize minimumSizeHint() const;
+	QSize sizeHint() const;
+	void paintEvent(QPaintEvent *);
+	void animate();
+
+	QColor fill_color, back_color, border_color;
+	QString m_text;
+	QVariantAnimation anim;
+	double m_value = 0., m_value_visual = 0., m_minimum = 0., m_maximum = 100.;
+	double m_angle_offset = 0., angle_gap = 20., bar_ = 30.;
+
+public slots:
+	void enable() { setEnabled(true); }
+	void disable() { setEnabled(false); }
+
+	void setValue(double v);
+	void setMinimum(double m);
+	void setMaximum(double m);
+};
+
+
+#endif

libs/widgets/plugin/circleindicatorplugin.cpp

@@ -0,0 +1,69 @@
+#include "circleindicatorplugin.h"
+
+#include "circleindicator.h"
+
+#include <QtCore/QtPlugin>
+
+
+CircleIndicatorPlugin::CircleIndicatorPlugin(QObject * parent): QObject(parent) {
+	m_initialized = false;
+}
+
+
+void CircleIndicatorPlugin::initialize(QDesignerFormEditorInterface * /* core */) {
+	if (m_initialized) return;
+
+	// Add extension registrations, etc. here
+
+	m_initialized = true;
+}
+
+
+bool CircleIndicatorPlugin::isInitialized() const {
+	return m_initialized;
+}
+
+
+QWidget * CircleIndicatorPlugin::createWidget(QWidget * parent) {
+	return new CircleIndicator(parent);
+}
+
+
+QString CircleIndicatorPlugin::name() const {
+	return QLatin1String("CircleIndicator");
+}
+
+
+QString CircleIndicatorPlugin::group() const {
+	return QLatin1String("Display Widgets");
+}
+
+
+QIcon CircleIndicatorPlugin::icon() const {
+	return QIcon(/*":/icons/clineedit.png"*/);
+}
+
+
+QString CircleIndicatorPlugin::toolTip() const {
+	return QLatin1String("Circle indicator with text");
+}
+
+
+QString CircleIndicatorPlugin::whatsThis() const {
+	return QLatin1String("Circle indicator with text");
+}
+
+
+bool CircleIndicatorPlugin::isContainer() const {
+	return false;
+}
+
+
+QString CircleIndicatorPlugin::domXml() const {
+	return QLatin1String("<widget class=\"CircleIndicator\" name=\"circleIndicator\">\n</widget>\n");
+}
+
+
+QString CircleIndicatorPlugin::includeFile() const {
+	return QLatin1String("circleindicator.h");
+}

libs/widgets/plugin/circleindicatorplugin.h

@@ -0,0 +1,36 @@
+#ifndef circleindicatorplugin_H
+#define circleindicatorplugin_H
+
+#include <QObject>
+#if QT_VERSION >= 0x050000
+#  include <QtUiPlugin/QDesignerCustomWidgetInterface>
+#else
+#  include <QDesignerCustomWidgetInterface>
+#endif
+
+class CircleIndicatorPlugin
+	: public QObject
+	, public QDesignerCustomWidgetInterface {
+	Q_OBJECT
+	Q_INTERFACES(QDesignerCustomWidgetInterface)
+
+public:
+	CircleIndicatorPlugin(QObject * parent = 0);
+
+	bool isContainer() const;
+	bool isInitialized() const;
+	QIcon icon() const;
+	QString domXml() const;
+	QString group() const;
+	QString includeFile() const;
+	QString name() const;
+	QString toolTip() const;
+	QString whatsThis() const;
+	QWidget * createWidget(QWidget * parent);
+	void initialize(QDesignerFormEditorInterface * core);
+
+private:
+	bool m_initialized;
+};
+
+#endif

libs/widgets/plugin/qad_widgets.cpp

@@ -1,5 +1,6 @@
 #include "qad_widgets.h"
 
+#include "circleindicatorplugin.h"
 #include "clineeditplugin.h"
 #include "colorbuttonplugin.h"
 #include "ecomboboxplugin.h"
@@ -21,24 +22,28 @@
 
 
 QADWidgets::QADWidgets(QObject * parent): QObject(parent) {
-	m_widgets.append(new SpinSliderPlugin(this));
-	m_widgets.append(new ColorButtonPlugin(this));
-	m_widgets.append(new ShortcutsPlugin(this));
-	m_widgets.append(new CLineEditPlugin(this));
-	m_widgets.append(new QIPEditPlugin(this));
-	m_widgets.append(new QPointEditPlugin(this));
-	m_widgets.append(new QRectEditPlugin(this));
-	m_widgets.append(new EComboBoxPlugin(this));
-	m_widgets.append(new QPIConsolePlugin(this));
-	m_widgets.append(new IconedLabelPlugin(this));
-	m_widgets.append(new QCodeEditPlugin(this));
-	m_widgets.append(new QVariantEditPlugin(this));
-	m_widgets.append(new QPIConfigPlugin(this));
-	m_widgets.append(new EvalSpinBoxPlugin(this));
-	m_widgets.append(new ImageViewPlugin(this));
-	m_widgets.append(new ScrollSpinBoxPlugin(this));
-	m_widgets.append(new RangeSliderPlugin(this));
-	m_widgets.append(new StateIconPlugin(this));
+	// clang-format off
+	m_widgets
+		<< new SpinSliderPlugin(this)
+		<< new ColorButtonPlugin(this)
+		<< new ShortcutsPlugin(this)
+		<< new CLineEditPlugin(this)
+		<< new QIPEditPlugin(this)
+		<< new QPointEditPlugin(this)
+		<< new QRectEditPlugin(this)
+		<< new EComboBoxPlugin(this)
+		<< new QPIConsolePlugin(this)
+		<< new IconedLabelPlugin(this)
+		<< new QCodeEditPlugin(this)
+		<< new QVariantEditPlugin(this)
+		<< new QPIConfigPlugin(this)
+		<< new EvalSpinBoxPlugin(this)
+		<< new ImageViewPlugin(this)
+		<< new ScrollSpinBoxPlugin(this)
+		<< new RangeSliderPlugin(this)
+		<< new StateIconPlugin(this)
+		<< new CircleIndicatorPlugin(this);
+	// clang-format on
 }