napcok/calamares
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Licensing: re-import QtWaitingSpinner

Browse Source 
- include full license headers,
 - copied from
   - repo: https://github.com/snowwlex/QtWaitingSpinner
   - rev:  bb8f8987ca19406dc75704eb382ab52e981b773f

This revision *does not build* because the files have been renamed.
This commit is contained in:
Adriaan de Groot 2017-09-19 12:58:35 +02:00
parent 24f26ee7c8
commit 553a66b326
5 changed files with 412 additions and 258 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
LICENSES/MIT-QtWaitingSpinner Normal file
View File

@ -0,0 +1,21 @@
The MIT License (MIT)
Original Work Copyright (c) 2012-2015 Alexander Turkin
Modified 2014 by William Hallatt
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

176
src/libcalamaresui/widgets/QtWaitingSpinner.cpp
View File

@ -1,176 +0,0 @@
/* === This file is part of Calamares - <http://github.com/calamares> ===
*
* Copyright 2014, Teo Mrnjavac <teo@kde.org>
*
* Originally from https://github.com/snowwlex/QtWaitingSpinner
* Copyright 2012, Alex Turkin
*
* Calamares is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Calamares is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Calamares. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cmath>
#include <algorithm>
#include <QPainter>
#include "QtWaitingSpinner.h"
QtWaitingSpinner::QtWaitingSpinner(int linesNumber, int length, int width, int radius, QWidget* parent) : QWidget(parent),
myLinesNumber(linesNumber),
myLength(length + width),
myWidth(width),
myRadius(radius),
myRoundness(70.0),
myColor(Qt::black),
mySpeed(1),
myTrail(70),
myOpacity(15)
{
myCurrentCounter = 0;
myTimer = new QTimer(this);
connect(myTimer,SIGNAL(timeout()), this, SLOT(rotate()));
updateSize();
updateTimer();
this->hide();
}
void QtWaitingSpinner::paintEvent(QPaintEvent* /*ev*/) {
QPainter painter(this);
painter.fillRect(this->rect(), Qt::transparent);
painter.setRenderHint(QPainter::Antialiasing, true);
if (myCurrentCounter >= myLinesNumber) {
myCurrentCounter = 0;
}
painter.setPen(Qt::NoPen);
for (int i = 0; i < myLinesNumber; ++i) {
painter.save();
painter.translate(myRadius + myLength, myRadius + myLength);
qreal rotateAngle = 360.0 * qreal(i) / qreal(myLinesNumber);
painter.rotate(rotateAngle);
painter.translate(myRadius, 0);
int distance = lineDistance(i, myCurrentCounter, myLinesNumber);
QColor color = countTrailColor(distance, myLinesNumber, myTrail, myOpacity, myColor);
painter.setBrush(color);
//TODO improve the way rounded rect is painted
painter.drawRoundedRect(QRect(0, -myWidth/2, myLength, myWidth), myRoundness, myRoundness, Qt::RelativeSize);
painter.restore();
}
}
void QtWaitingSpinner::start() {
this->show();
if (!myTimer->isActive()) {
myTimer->start();
myCurrentCounter = 0;
}
}
void QtWaitingSpinner::finish() {
this->hide();
if (myTimer->isActive()) {
myTimer->stop();
myCurrentCounter = 0;
}
}
void QtWaitingSpinner::setLinesNumber(int linesNumber) {
myLinesNumber = linesNumber;
myCurrentCounter = 0;
updateTimer();
}
void QtWaitingSpinner::setLength(int length){
myLength = length;
updateSize();
}
void QtWaitingSpinner::setWidth(int width) {
myWidth = width;
updateSize();
}
void QtWaitingSpinner::setRadius(int radius) {
myRadius = radius;
updateSize();
}
void QtWaitingSpinner::setRoundness(qreal roundness) {
myRoundness = std::max(0.0, std::min(100.0, roundness));
}
void QtWaitingSpinner::setColor(QColor color) {
myColor = color;
}
void QtWaitingSpinner::setSpeed(qreal speed) {
mySpeed = speed;
updateTimer();
}
void QtWaitingSpinner::setTrail(int trail) {
myTrail = trail;
}
void QtWaitingSpinner::setOpacity(int minOpacity) {
myOpacity = minOpacity;
}
void QtWaitingSpinner::rotate() {
++myCurrentCounter;
if (myCurrentCounter >= myLinesNumber) {
myCurrentCounter = 0;
}
update();
}
void QtWaitingSpinner::updateSize() {
int size = (myRadius + myLength) * 2;
setFixedSize(size, size);
}
void QtWaitingSpinner::updateTimer() {
myTimer->setInterval(countTimeout(myLinesNumber, mySpeed));
}
int QtWaitingSpinner::countTimeout(int lines, qreal speed) {
return int( 1000.0 / (lines * speed) );
}
int QtWaitingSpinner::lineDistance(int from, int to, int lines) {
int result = to - from;
if (result < 0) {
result += lines;
}
return result;
}
QColor QtWaitingSpinner::countTrailColor(int distance, int lines, int trail, int minOpacity, QColor color) {
if (distance == 0) {
return color;
}
const qreal minAlphaF = qreal(minOpacity) / 100.0;
int distanceThreshold = int( ceil( (lines - 1) * qreal(trail) / 100.0) );
if (distance > distanceThreshold) {
color.setAlphaF(minAlphaF);
return color;
}
qreal alphaDiff = color.alphaF() - minAlphaF;
qreal gradation = alphaDiff / qreal(distanceThreshold + 1);
qreal resultAlpha = color.alphaF() - gradation * distance;
resultAlpha = std::min(1.0, std::max(0.0, resultAlpha)); //if alpha is out of bound, force it to bounds
color.setAlphaF(resultAlpha);
return color;
}

82
src/libcalamaresui/widgets/QtWaitingSpinner.h
View File

@ -1,82 +0,0 @@
/* === This file is part of Calamares - <http://github.com/calamares> ===
*
* Copyright 2014, Teo Mrnjavac <teo@kde.org>
*
* Originally from https://github.com/snowwlex/QtWaitingSpinner
* Copyright 2012, Alex Turkin
*
* Calamares is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Calamares is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Calamares. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef QTWAITINGSPINNER_H
#define QTWAITINGSPINNER_H
#include "UiDllMacro.h"
#include <QtCore/QTimer>
#include <QWidget>
#include <QColor>
class UIDLLEXPORT QtWaitingSpinner : public QWidget {
Q_OBJECT
public:
explicit QtWaitingSpinner(int linesNumber = 12, int length = 7, int width = 5, int radius = 10, QWidget* parent = nullptr);
public Q_SLOTS:
void start();
void finish();
public:
void setLinesNumber(int linesNumber);
void setLength(int length);
void setWidth(int width);
void setRadius(int radius);
void setRoundness(qreal roundness);
void setColor(QColor color);
void setSpeed(qreal speed);
void setTrail(int trail);
void setOpacity(int minOpacity);
private Q_SLOTS:
void rotate();
void updateSize();
void updateTimer();
protected:
void paintEvent(QPaintEvent* ev);
private:
static int countTimeout(int lines, qreal speed);
static int lineDistance(int from, int to, int lines);
static QColor countTrailColor(int distance, int lines, int trail, int minOpacity, QColor color);
private:
int myLinesNumber;
int myLength;
int myWidth;
int myRadius;
qreal myRoundness; //0..100
QColor myColor;
qreal mySpeed; // in rounds per second
int myTrail;
int myOpacity;
private:
QTimer* myTimer;
int myCurrentCounter;
};
#endif // QTWAITINGSPINNER_H

277
src/libcalamaresui/widgets/waitingspinnerwidget.cpp Normal file
View File

@ -0,0 +1,277 @@
/* Original Work Copyright (c) 2012-2014 Alexander Turkin
Modified 2014 by William Hallatt
Modified 2015 by Jacob Dawid
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
// Own includes
#include "waitingspinnerwidget.h"
// Standard includes
#include <cmath>
#include <algorithm>
// Qt includes
#include <QPainter>
#include <QTimer>
WaitingSpinnerWidget::WaitingSpinnerWidget(QWidget *parent,
bool centerOnParent,
bool disableParentWhenSpinning)
: QWidget(parent),
_centerOnParent(centerOnParent),
_disableParentWhenSpinning(disableParentWhenSpinning) {
initialize();
}
WaitingSpinnerWidget::WaitingSpinnerWidget(Qt::WindowModality modality,
QWidget *parent,
bool centerOnParent,
bool disableParentWhenSpinning)
: QWidget(parent, Qt::Dialog | Qt::FramelessWindowHint),
_centerOnParent(centerOnParent),
_disableParentWhenSpinning(disableParentWhenSpinning){
initialize();
// We need to set the window modality AFTER we've hidden the
// widget for the first time since changing this property while
// the widget is visible has no effect.
setWindowModality(modality);
setAttribute(Qt::WA_TranslucentBackground);
}
void WaitingSpinnerWidget::initialize() {
_color = Qt::black;
_roundness = 100.0;
_minimumTrailOpacity = 3.14159265358979323846;
_trailFadePercentage = 80.0;
_revolutionsPerSecond = 1.57079632679489661923;
_numberOfLines = 20;
_lineLength = 10;
_lineWidth = 2;
_innerRadius = 10;
_currentCounter = 0;
_isSpinning = false;
_timer = new QTimer(this);
connect(_timer, SIGNAL(timeout()), this, SLOT(rotate()));
updateSize();
updateTimer();
hide();
}
void WaitingSpinnerWidget::paintEvent(QPaintEvent *) {
updatePosition();
QPainter painter(this);
painter.fillRect(this->rect(), Qt::transparent);
painter.setRenderHint(QPainter::Antialiasing, true);
if (_currentCounter >= _numberOfLines) {
_currentCounter = 0;
}
painter.setPen(Qt::NoPen);
for (int i = 0; i < _numberOfLines; ++i) {
painter.save();
painter.translate(_innerRadius + _lineLength,
_innerRadius + _lineLength);
qreal rotateAngle =
static_cast<qreal>(360 * i) / static_cast<qreal>(_numberOfLines);
painter.rotate(rotateAngle);
painter.translate(_innerRadius, 0);
int distance =
lineCountDistanceFromPrimary(i, _currentCounter, _numberOfLines);
QColor color =
currentLineColor(distance, _numberOfLines, _trailFadePercentage,
_minimumTrailOpacity, _color);
painter.setBrush(color);
// TODO improve the way rounded rect is painted
painter.drawRoundedRect(
QRect(0, -_lineWidth / 2, _lineLength, _lineWidth), _roundness,
_roundness, Qt::RelativeSize);
painter.restore();
}
}
void WaitingSpinnerWidget::start() {
updatePosition();
_isSpinning = true;
show();
if(parentWidget() && _disableParentWhenSpinning) {
parentWidget()->setEnabled(false);
}
if (!_timer->isActive()) {
_timer->start();
_currentCounter = 0;
}
}
void WaitingSpinnerWidget::stop() {
_isSpinning = false;
hide();
if(parentWidget() && _disableParentWhenSpinning) {
parentWidget()->setEnabled(true);
}
if (_timer->isActive()) {
_timer->stop();
_currentCounter = 0;
}
}
void WaitingSpinnerWidget::setNumberOfLines(int lines) {
_numberOfLines = lines;
_currentCounter = 0;
updateTimer();
}
void WaitingSpinnerWidget::setLineLength(int length) {
_lineLength = length;
updateSize();
}
void WaitingSpinnerWidget::setLineWidth(int width) {
_lineWidth = width;
updateSize();
}
void WaitingSpinnerWidget::setInnerRadius(int radius) {
_innerRadius = radius;
updateSize();
}
QColor WaitingSpinnerWidget::color() {
return _color;
}
qreal WaitingSpinnerWidget::roundness() {
return _roundness;
}
qreal WaitingSpinnerWidget::minimumTrailOpacity() {
return _minimumTrailOpacity;
}
qreal WaitingSpinnerWidget::trailFadePercentage() {
return _trailFadePercentage;
}
qreal WaitingSpinnerWidget::revolutionsPersSecond() {
return _revolutionsPerSecond;
}
int WaitingSpinnerWidget::numberOfLines() {
return _numberOfLines;
}
int WaitingSpinnerWidget::lineLength() {
return _lineLength;
}
int WaitingSpinnerWidget::lineWidth() {
return _lineWidth;
}
int WaitingSpinnerWidget::innerRadius() {
return _innerRadius;
}
bool WaitingSpinnerWidget::isSpinning() const {
return _isSpinning;
}
void WaitingSpinnerWidget::setRoundness(qreal roundness) {
_roundness = std::max(0.0, std::min(100.0, roundness));
}
void WaitingSpinnerWidget::setColor(QColor color) {
_color = color;
}
void WaitingSpinnerWidget::setRevolutionsPerSecond(qreal revolutionsPerSecond) {
_revolutionsPerSecond = revolutionsPerSecond;
updateTimer();
}
void WaitingSpinnerWidget::setTrailFadePercentage(qreal trail) {
_trailFadePercentage = trail;
}
void WaitingSpinnerWidget::setMinimumTrailOpacity(qreal minimumTrailOpacity) {
_minimumTrailOpacity = minimumTrailOpacity;
}
void WaitingSpinnerWidget::rotate() {
++_currentCounter;
if (_currentCounter >= _numberOfLines) {
_currentCounter = 0;
}
update();
}
void WaitingSpinnerWidget::updateSize() {
int size = (_innerRadius + _lineLength) * 2;
setFixedSize(size, size);
}
void WaitingSpinnerWidget::updateTimer() {
_timer->setInterval(1000 / (_numberOfLines * _revolutionsPerSecond));
}
void WaitingSpinnerWidget::updatePosition() {
if (parentWidget() && _centerOnParent) {
move(parentWidget()->width() / 2 - width() / 2,
parentWidget()->height() / 2 - height() / 2);
}
}
int WaitingSpinnerWidget::lineCountDistanceFromPrimary(int current, int primary,
int totalNrOfLines) {
int distance = primary - current;
if (distance < 0) {
distance += totalNrOfLines;
}
return distance;
}
QColor WaitingSpinnerWidget::currentLineColor(int countDistance, int totalNrOfLines,
qreal trailFadePerc, qreal minOpacity,
QColor color) {
if (countDistance == 0) {
return color;
}
const qreal minAlphaF = minOpacity / 100.0;
int distanceThreshold =
static_cast<int>(ceil((totalNrOfLines - 1) * trailFadePerc / 100.0));
if (countDistance > distanceThreshold) {
color.setAlphaF(minAlphaF);
} else {
qreal alphaDiff = color.alphaF() - minAlphaF;
qreal gradient = alphaDiff / static_cast<qreal>(distanceThreshold + 1);
qreal resultAlpha = color.alphaF() - gradient * countDistance;
// If alpha is out of bounds, clip it.
resultAlpha = std::min(1.0, std::max(0.0, resultAlpha));
color.setAlphaF(resultAlpha);
}
return color;
}

114
src/libcalamaresui/widgets/waitingspinnerwidget.h Normal file
View File

@ -0,0 +1,114 @@
/* Original Work Copyright (c) 2012-2014 Alexander Turkin
Modified 2014 by William Hallatt
Modified 2015 by Jacob Dawid
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
// Qt includes
#include <QWidget>
#include <QTimer>
#include <QColor>
class WaitingSpinnerWidget : public QWidget {
Q_OBJECT
public:
/*! Constructor for "standard" widget behaviour - use this
* constructor if you wish to, e.g. embed your widget in another. */
WaitingSpinnerWidget(QWidget *parent = 0,
bool centerOnParent = true,
bool disableParentWhenSpinning = true);
/*! Constructor - use this constructor to automatically create a modal
* ("blocking") spinner on top of the calling widget/window. If a valid
* parent widget is provided, "centreOnParent" will ensure that
* QtWaitingSpinner automatically centres itself on it, if not,
* "centreOnParent" is ignored. */
WaitingSpinnerWidget(Qt::WindowModality modality,
QWidget *parent = 0,
bool centerOnParent = true,
bool disableParentWhenSpinning = true);
public slots:
void start();
void stop();
public:
void setColor(QColor color);
void setRoundness(qreal roundness);
void setMinimumTrailOpacity(qreal minimumTrailOpacity);
void setTrailFadePercentage(qreal trail);
void setRevolutionsPerSecond(qreal revolutionsPerSecond);
void setNumberOfLines(int lines);
void setLineLength(int length);
void setLineWidth(int width);
void setInnerRadius(int radius);
void setText(QString text);
QColor color();
qreal roundness();
qreal minimumTrailOpacity();
qreal trailFadePercentage();
qreal revolutionsPersSecond();
int numberOfLines();
int lineLength();
int lineWidth();
int innerRadius();
bool isSpinning() const;
private slots:
void rotate();
protected:
void paintEvent(QPaintEvent *paintEvent);
private:
static int lineCountDistanceFromPrimary(int current, int primary,
int totalNrOfLines);
static QColor currentLineColor(int distance, int totalNrOfLines,
qreal trailFadePerc, qreal minOpacity,
QColor color);
void initialize();
void updateSize();
void updateTimer();
void updatePosition();
private:
QColor _color;
qreal _roundness; // 0..100
qreal _minimumTrailOpacity;
qreal _trailFadePercentage;
qreal _revolutionsPerSecond;
int _numberOfLines;
int _lineLength;
int _lineWidth;
int _innerRadius;
private:
WaitingSpinnerWidget(const WaitingSpinnerWidget&);
WaitingSpinnerWidget& operator=(const WaitingSpinnerWidget&);
QTimer *_timer;
bool _centerOnParent;
bool _disableParentWhenSpinning;
int _currentCounter;
bool _isSpinning;
};