38be0d1383
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
517 lines
18 KiB
C++
517 lines
18 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
|
|
** All rights reserved.
|
|
** Contact: Nokia Corporation (qt-info@nokia.com)
|
|
**
|
|
** This file is part of the demonstration applications of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:LGPL$
|
|
** No Commercial Usage
|
|
** This file contains pre-release code and may not be distributed.
|
|
** You may use this file in accordance with the terms and conditions
|
|
** contained in the Technology Preview License Agreement accompanying
|
|
** this package.
|
|
**
|
|
** GNU Lesser General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU Lesser
|
|
** General Public License version 2.1 as published by the Free Software
|
|
** Foundation and appearing in the file LICENSE.LGPL included in the
|
|
** packaging of this file. Please review the following information to
|
|
** ensure the GNU Lesser General Public License version 2.1 requirements
|
|
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
|
**
|
|
** In addition, as a special exception, Nokia gives you certain additional
|
|
** rights. These rights are described in the Nokia Qt LGPL Exception
|
|
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
|
**
|
|
** If you have questions regarding the use of this file, please contact
|
|
** Nokia at qt-info@nokia.com.
|
|
**
|
|
**
|
|
**
|
|
**
|
|
**
|
|
**
|
|
**
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#include "gradients.h"
|
|
#include "hoverpoints.h"
|
|
|
|
ShadeWidget::ShadeWidget(ShadeType type, QWidget *parent)
|
|
: QWidget(parent), m_shade_type(type), m_alpha_gradient(QLinearGradient(0, 0, 0, 0))
|
|
{
|
|
|
|
// Checkers background
|
|
if (m_shade_type == ARGBShade) {
|
|
QPixmap pm(20, 20);
|
|
QPainter pmp(&pm);
|
|
pmp.fillRect(0, 0, 10, 10, Qt::lightGray);
|
|
pmp.fillRect(10, 10, 10, 10, Qt::lightGray);
|
|
pmp.fillRect(0, 10, 10, 10, Qt::darkGray);
|
|
pmp.fillRect(10, 0, 10, 10, Qt::darkGray);
|
|
pmp.end();
|
|
QPalette pal = palette();
|
|
pal.setBrush(backgroundRole(), QBrush(pm));
|
|
setAutoFillBackground(true);
|
|
setPalette(pal);
|
|
|
|
} else {
|
|
setAttribute(Qt::WA_NoBackground);
|
|
|
|
}
|
|
|
|
QPolygonF points;
|
|
points << QPointF(0, sizeHint().height())
|
|
<< QPointF(sizeHint().width(), 0);
|
|
|
|
m_hoverPoints = new HoverPoints(this, HoverPoints::CircleShape);
|
|
// m_hoverPoints->setConnectionType(HoverPoints::LineConnection);
|
|
m_hoverPoints->setPoints(points);
|
|
m_hoverPoints->setPointLock(0, HoverPoints::LockToLeft);
|
|
m_hoverPoints->setPointLock(1, HoverPoints::LockToRight);
|
|
m_hoverPoints->setSortType(HoverPoints::XSort);
|
|
|
|
setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
|
|
|
|
connect(m_hoverPoints, SIGNAL(pointsChanged(QPolygonF)), this, SIGNAL(colorsChanged()));
|
|
}
|
|
|
|
|
|
QPolygonF ShadeWidget::points() const
|
|
{
|
|
return m_hoverPoints->points();
|
|
}
|
|
|
|
|
|
uint ShadeWidget::colorAt(int x)
|
|
{
|
|
generateShade();
|
|
|
|
QPolygonF pts = m_hoverPoints->points();
|
|
for (int i=1; i < pts.size(); ++i) {
|
|
if (pts.at(i-1).x() <= x && pts.at(i).x() >= x) {
|
|
QLineF l(pts.at(i-1), pts.at(i));
|
|
l.setLength(l.length() * ((x - l.x1()) / l.dx()));
|
|
return m_shade.pixel(qRound(qMin(l.x2(), (qreal(m_shade.width() - 1)))),
|
|
qRound(qMin(l.y2(), qreal(m_shade.height() - 1))));
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
void ShadeWidget::setGradientStops(const QGradientStops &stops)
|
|
{
|
|
if (m_shade_type == ARGBShade) {
|
|
m_alpha_gradient = QLinearGradient(0, 0, width(), 0);
|
|
|
|
for (int i=0; i<stops.size(); ++i) {
|
|
QColor c = stops.at(i).second;
|
|
m_alpha_gradient.setColorAt(stops.at(i).first, QColor(c.red(), c.green(), c.blue()));
|
|
}
|
|
|
|
m_shade = QImage();
|
|
generateShade();
|
|
update();
|
|
}
|
|
}
|
|
|
|
|
|
void ShadeWidget::paintEvent(QPaintEvent *)
|
|
{
|
|
generateShade();
|
|
|
|
QPainter p(this);
|
|
p.drawImage(0, 0, m_shade);
|
|
|
|
p.setPen(QColor(146, 146, 146));
|
|
p.drawRect(0, 0, width() - 1, height() - 1);
|
|
}
|
|
|
|
|
|
void ShadeWidget::generateShade()
|
|
{
|
|
if (m_shade.isNull() || m_shade.size() != size()) {
|
|
|
|
if (m_shade_type == ARGBShade) {
|
|
m_shade = QImage(size(), QImage::Format_ARGB32_Premultiplied);
|
|
m_shade.fill(0);
|
|
|
|
QPainter p(&m_shade);
|
|
p.fillRect(rect(), m_alpha_gradient);
|
|
|
|
p.setCompositionMode(QPainter::CompositionMode_DestinationIn);
|
|
QLinearGradient fade(0, 0, 0, height());
|
|
fade.setColorAt(0, QColor(0, 0, 0, 255));
|
|
fade.setColorAt(1, QColor(0, 0, 0, 0));
|
|
p.fillRect(rect(), fade);
|
|
|
|
} else {
|
|
m_shade = QImage(size(), QImage::Format_RGB32);
|
|
QLinearGradient shade(0, 0, 0, height());
|
|
shade.setColorAt(1, Qt::black);
|
|
|
|
if (m_shade_type == RedShade)
|
|
shade.setColorAt(0, Qt::red);
|
|
else if (m_shade_type == GreenShade)
|
|
shade.setColorAt(0, Qt::green);
|
|
else
|
|
shade.setColorAt(0, Qt::blue);
|
|
|
|
QPainter p(&m_shade);
|
|
p.fillRect(rect(), shade);
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
GradientEditor::GradientEditor(QWidget *parent)
|
|
: QWidget(parent)
|
|
{
|
|
QVBoxLayout *vbox = new QVBoxLayout(this);
|
|
vbox->setSpacing(1);
|
|
vbox->setMargin(1);
|
|
|
|
m_red_shade = new ShadeWidget(ShadeWidget::RedShade, this);
|
|
m_green_shade = new ShadeWidget(ShadeWidget::GreenShade, this);
|
|
m_blue_shade = new ShadeWidget(ShadeWidget::BlueShade, this);
|
|
m_alpha_shade = new ShadeWidget(ShadeWidget::ARGBShade, this);
|
|
|
|
vbox->addWidget(m_red_shade);
|
|
vbox->addWidget(m_green_shade);
|
|
vbox->addWidget(m_blue_shade);
|
|
vbox->addWidget(m_alpha_shade);
|
|
|
|
connect(m_red_shade, SIGNAL(colorsChanged()), this, SLOT(pointsUpdated()));
|
|
connect(m_green_shade, SIGNAL(colorsChanged()), this, SLOT(pointsUpdated()));
|
|
connect(m_blue_shade, SIGNAL(colorsChanged()), this, SLOT(pointsUpdated()));
|
|
connect(m_alpha_shade, SIGNAL(colorsChanged()), this, SLOT(pointsUpdated()));
|
|
}
|
|
|
|
|
|
inline static bool x_less_than(const QPointF &p1, const QPointF &p2)
|
|
{
|
|
return p1.x() < p2.x();
|
|
}
|
|
|
|
|
|
void GradientEditor::pointsUpdated()
|
|
{
|
|
qreal w = m_alpha_shade->width();
|
|
|
|
QGradientStops stops;
|
|
|
|
QPolygonF points;
|
|
|
|
points += m_red_shade->points();
|
|
points += m_green_shade->points();
|
|
points += m_blue_shade->points();
|
|
points += m_alpha_shade->points();
|
|
|
|
qSort(points.begin(), points.end(), x_less_than);
|
|
|
|
for (int i=0; i<points.size(); ++i) {
|
|
qreal x = int(points.at(i).x());
|
|
if (i < points.size() - 1 && x == points.at(i+1).x())
|
|
continue;
|
|
QColor color((0x00ff0000 & m_red_shade->colorAt(int(x))) >> 16,
|
|
(0x0000ff00 & m_green_shade->colorAt(int(x))) >> 8,
|
|
(0x000000ff & m_blue_shade->colorAt(int(x))),
|
|
(0xff000000 & m_alpha_shade->colorAt(int(x))) >> 24);
|
|
|
|
if (x / w > 1)
|
|
return;
|
|
|
|
stops << QGradientStop(x / w, color);
|
|
}
|
|
|
|
m_alpha_shade->setGradientStops(stops);
|
|
|
|
emit gradientStopsChanged(stops);
|
|
}
|
|
|
|
|
|
static void set_shade_points(const QPolygonF &points, ShadeWidget *shade)
|
|
{
|
|
shade->hoverPoints()->setPoints(points);
|
|
shade->hoverPoints()->setPointLock(0, HoverPoints::LockToLeft);
|
|
shade->hoverPoints()->setPointLock(points.size() - 1, HoverPoints::LockToRight);
|
|
shade->update();
|
|
}
|
|
|
|
void GradientEditor::setGradientStops(const QGradientStops &stops)
|
|
{
|
|
QPolygonF pts_red, pts_green, pts_blue, pts_alpha;
|
|
|
|
qreal h_red = m_red_shade->height();
|
|
qreal h_green = m_green_shade->height();
|
|
qreal h_blue = m_blue_shade->height();
|
|
qreal h_alpha = m_alpha_shade->height();
|
|
|
|
for (int i=0; i<stops.size(); ++i) {
|
|
qreal pos = stops.at(i).first;
|
|
QRgb color = stops.at(i).second.rgba();
|
|
pts_red << QPointF(pos * m_red_shade->width(), h_red - qRed(color) * h_red / 255);
|
|
pts_green << QPointF(pos * m_green_shade->width(), h_green - qGreen(color) * h_green / 255);
|
|
pts_blue << QPointF(pos * m_blue_shade->width(), h_blue - qBlue(color) * h_blue / 255);
|
|
pts_alpha << QPointF(pos * m_alpha_shade->width(), h_alpha - qAlpha(color) * h_alpha / 255);
|
|
}
|
|
|
|
set_shade_points(pts_red, m_red_shade);
|
|
set_shade_points(pts_green, m_green_shade);
|
|
set_shade_points(pts_blue, m_blue_shade);
|
|
set_shade_points(pts_alpha, m_alpha_shade);
|
|
|
|
}
|
|
|
|
GradientWidget::GradientWidget(QWidget *parent)
|
|
: QWidget(parent)
|
|
{
|
|
setWindowTitle(tr("Gradients"));
|
|
|
|
m_renderer = new GradientRenderer(this);
|
|
|
|
QGroupBox *mainGroup = new QGroupBox(this);
|
|
mainGroup->setTitle(tr("Gradients"));
|
|
|
|
QGroupBox *editorGroup = new QGroupBox(mainGroup);
|
|
editorGroup->setTitle(tr("Color Editor"));
|
|
m_editor = new GradientEditor(editorGroup);
|
|
|
|
QGroupBox *typeGroup = new QGroupBox(mainGroup);
|
|
typeGroup->setTitle(tr("Gradient Type"));
|
|
m_linearButton = new QRadioButton(tr("Linear Gradient"), typeGroup);
|
|
m_radialButton = new QRadioButton(tr("Radial Gradient"), typeGroup);
|
|
m_conicalButton = new QRadioButton(tr("Conical Gradient"), typeGroup);
|
|
|
|
QGroupBox *spreadGroup = new QGroupBox(mainGroup);
|
|
spreadGroup->setTitle(tr("Spread Method"));
|
|
m_padSpreadButton = new QRadioButton(tr("Pad Spread"), spreadGroup);
|
|
m_reflectSpreadButton = new QRadioButton(tr("Reflect Spread"), spreadGroup);
|
|
m_repeatSpreadButton = new QRadioButton(tr("Repeat Spread"), spreadGroup);
|
|
|
|
QGroupBox *defaultsGroup = new QGroupBox(mainGroup);
|
|
defaultsGroup->setTitle(tr("Defaults"));
|
|
QPushButton *default1Button = new QPushButton(tr("1"), defaultsGroup);
|
|
QPushButton *default2Button = new QPushButton(tr("2"), defaultsGroup);
|
|
QPushButton *default3Button = new QPushButton(tr("3"), defaultsGroup);
|
|
QPushButton *default4Button = new QPushButton(tr("Reset"), editorGroup);
|
|
|
|
QPushButton *showSourceButton = new QPushButton(mainGroup);
|
|
showSourceButton->setText(tr("Show Source"));
|
|
#ifdef QT_OPENGL_SUPPORT
|
|
QPushButton *enableOpenGLButton = new QPushButton(mainGroup);
|
|
enableOpenGLButton->setText(tr("Use OpenGL"));
|
|
enableOpenGLButton->setCheckable(true);
|
|
enableOpenGLButton->setChecked(m_renderer->usesOpenGL());
|
|
if (!QGLFormat::hasOpenGL())
|
|
enableOpenGLButton->hide();
|
|
#endif
|
|
QPushButton *whatsThisButton = new QPushButton(mainGroup);
|
|
whatsThisButton->setText(tr("What's This?"));
|
|
whatsThisButton->setCheckable(true);
|
|
|
|
// Layouts
|
|
QHBoxLayout *mainLayout = new QHBoxLayout(this);
|
|
mainLayout->addWidget(m_renderer);
|
|
mainLayout->addWidget(mainGroup);
|
|
|
|
mainGroup->setFixedWidth(180);
|
|
QVBoxLayout *mainGroupLayout = new QVBoxLayout(mainGroup);
|
|
mainGroupLayout->addWidget(editorGroup);
|
|
mainGroupLayout->addWidget(typeGroup);
|
|
mainGroupLayout->addWidget(spreadGroup);
|
|
mainGroupLayout->addWidget(defaultsGroup);
|
|
mainGroupLayout->addStretch(1);
|
|
mainGroupLayout->addWidget(showSourceButton);
|
|
#ifdef QT_OPENGL_SUPPORT
|
|
mainGroupLayout->addWidget(enableOpenGLButton);
|
|
#endif
|
|
mainGroupLayout->addWidget(whatsThisButton);
|
|
|
|
QVBoxLayout *editorGroupLayout = new QVBoxLayout(editorGroup);
|
|
editorGroupLayout->addWidget(m_editor);
|
|
|
|
QVBoxLayout *typeGroupLayout = new QVBoxLayout(typeGroup);
|
|
typeGroupLayout->addWidget(m_linearButton);
|
|
typeGroupLayout->addWidget(m_radialButton);
|
|
typeGroupLayout->addWidget(m_conicalButton);
|
|
|
|
QVBoxLayout *spreadGroupLayout = new QVBoxLayout(spreadGroup);
|
|
spreadGroupLayout->addWidget(m_padSpreadButton);
|
|
spreadGroupLayout->addWidget(m_repeatSpreadButton);
|
|
spreadGroupLayout->addWidget(m_reflectSpreadButton);
|
|
|
|
QHBoxLayout *defaultsGroupLayout = new QHBoxLayout(defaultsGroup);
|
|
defaultsGroupLayout->addWidget(default1Button);
|
|
defaultsGroupLayout->addWidget(default2Button);
|
|
defaultsGroupLayout->addWidget(default3Button);
|
|
editorGroupLayout->addWidget(default4Button);
|
|
|
|
connect(m_editor, SIGNAL(gradientStopsChanged(QGradientStops)),
|
|
m_renderer, SLOT(setGradientStops(QGradientStops)));
|
|
|
|
connect(m_linearButton, SIGNAL(clicked()), m_renderer, SLOT(setLinearGradient()));
|
|
connect(m_radialButton, SIGNAL(clicked()), m_renderer, SLOT(setRadialGradient()));
|
|
connect(m_conicalButton, SIGNAL(clicked()), m_renderer, SLOT(setConicalGradient()));
|
|
|
|
connect(m_padSpreadButton, SIGNAL(clicked()), m_renderer, SLOT(setPadSpread()));
|
|
connect(m_reflectSpreadButton, SIGNAL(clicked()), m_renderer, SLOT(setReflectSpread()));
|
|
connect(m_repeatSpreadButton, SIGNAL(clicked()), m_renderer, SLOT(setRepeatSpread()));
|
|
|
|
connect(default1Button, SIGNAL(clicked()), this, SLOT(setDefault1()));
|
|
connect(default2Button, SIGNAL(clicked()), this, SLOT(setDefault2()));
|
|
connect(default3Button, SIGNAL(clicked()), this, SLOT(setDefault3()));
|
|
connect(default4Button, SIGNAL(clicked()), this, SLOT(setDefault4()));
|
|
|
|
connect(showSourceButton, SIGNAL(clicked()), m_renderer, SLOT(showSource()));
|
|
#ifdef QT_OPENGL_SUPPORT
|
|
connect(enableOpenGLButton, SIGNAL(clicked(bool)), m_renderer, SLOT(enableOpenGL(bool)));
|
|
#endif
|
|
connect(whatsThisButton, SIGNAL(clicked(bool)), m_renderer, SLOT(setDescriptionEnabled(bool)));
|
|
connect(whatsThisButton, SIGNAL(clicked(bool)),
|
|
m_renderer->hoverPoints(), SLOT(setDisabled(bool)));
|
|
connect(m_renderer, SIGNAL(descriptionEnabledChanged(bool)),
|
|
whatsThisButton, SLOT(setChecked(bool)));
|
|
connect(m_renderer, SIGNAL(descriptionEnabledChanged(bool)),
|
|
m_renderer->hoverPoints(), SLOT(setDisabled(bool)));
|
|
|
|
m_renderer->loadSourceFile(":res/gradients/gradients.cpp");
|
|
m_renderer->loadDescription(":res/gradients/gradients.html");
|
|
|
|
QTimer::singleShot(50, this, SLOT(setDefault1()));
|
|
}
|
|
|
|
void GradientWidget::setDefault(int config)
|
|
{
|
|
QGradientStops stops;
|
|
QPolygonF points;
|
|
switch (config) {
|
|
case 1:
|
|
stops << QGradientStop(0.00, QColor::fromRgba(0));
|
|
stops << QGradientStop(0.04, QColor::fromRgba(0xff131360));
|
|
stops << QGradientStop(0.08, QColor::fromRgba(0xff202ccc));
|
|
stops << QGradientStop(0.42, QColor::fromRgba(0xff93d3f9));
|
|
stops << QGradientStop(0.51, QColor::fromRgba(0xffb3e6ff));
|
|
stops << QGradientStop(0.73, QColor::fromRgba(0xffffffec));
|
|
stops << QGradientStop(0.92, QColor::fromRgba(0xff5353d9));
|
|
stops << QGradientStop(0.96, QColor::fromRgba(0xff262666));
|
|
stops << QGradientStop(1.00, QColor::fromRgba(0));
|
|
m_linearButton->animateClick();
|
|
m_repeatSpreadButton->animateClick();
|
|
break;
|
|
|
|
case 2:
|
|
stops << QGradientStop(0.00, QColor::fromRgba(0xffffffff));
|
|
stops << QGradientStop(0.11, QColor::fromRgba(0xfff9ffa0));
|
|
stops << QGradientStop(0.13, QColor::fromRgba(0xfff9ff99));
|
|
stops << QGradientStop(0.14, QColor::fromRgba(0xfff3ff86));
|
|
stops << QGradientStop(0.49, QColor::fromRgba(0xff93b353));
|
|
stops << QGradientStop(0.87, QColor::fromRgba(0xff264619));
|
|
stops << QGradientStop(0.96, QColor::fromRgba(0xff0c1306));
|
|
stops << QGradientStop(1.00, QColor::fromRgba(0));
|
|
m_radialButton->animateClick();
|
|
m_padSpreadButton->animateClick();
|
|
break;
|
|
|
|
case 3:
|
|
stops << QGradientStop(0.00, QColor::fromRgba(0));
|
|
stops << QGradientStop(0.10, QColor::fromRgba(0xffe0cc73));
|
|
stops << QGradientStop(0.17, QColor::fromRgba(0xffc6a006));
|
|
stops << QGradientStop(0.46, QColor::fromRgba(0xff600659));
|
|
stops << QGradientStop(0.72, QColor::fromRgba(0xff0680ac));
|
|
stops << QGradientStop(0.92, QColor::fromRgba(0xffb9d9e6));
|
|
stops << QGradientStop(1.00, QColor::fromRgba(0));
|
|
m_conicalButton->animateClick();
|
|
m_padSpreadButton->animateClick();
|
|
break;
|
|
|
|
case 4:
|
|
stops << QGradientStop(0.00, QColor::fromRgba(0xff000000));
|
|
stops << QGradientStop(1.00, QColor::fromRgba(0xffffffff));
|
|
break;
|
|
|
|
default:
|
|
qWarning("bad default: %d\n", config);
|
|
break;
|
|
}
|
|
|
|
QPolygonF pts;
|
|
int h_off = m_renderer->width() / 10;
|
|
int v_off = m_renderer->height() / 8;
|
|
pts << QPointF(m_renderer->width() / 2, m_renderer->height() / 2)
|
|
<< QPointF(m_renderer->width() / 2 - h_off, m_renderer->height() / 2 - v_off);
|
|
|
|
m_editor->setGradientStops(stops);
|
|
m_renderer->hoverPoints()->setPoints(pts);
|
|
m_renderer->setGradientStops(stops);
|
|
}
|
|
|
|
|
|
GradientRenderer::GradientRenderer(QWidget *parent)
|
|
: ArthurFrame(parent)
|
|
{
|
|
m_hoverPoints = new HoverPoints(this, HoverPoints::CircleShape);
|
|
m_hoverPoints->setPointSize(QSize(20, 20));
|
|
m_hoverPoints->setConnectionType(HoverPoints::NoConnection);
|
|
m_hoverPoints->setEditable(false);
|
|
|
|
QVector<QPointF> points;
|
|
points << QPointF(100, 100) << QPointF(200, 200);
|
|
m_hoverPoints->setPoints(points);
|
|
|
|
m_spread = QGradient::PadSpread;
|
|
m_gradientType = Qt::LinearGradientPattern;
|
|
}
|
|
|
|
void GradientRenderer::setGradientStops(const QGradientStops &stops)
|
|
{
|
|
m_stops = stops;
|
|
update();
|
|
}
|
|
|
|
|
|
void GradientRenderer::mousePressEvent(QMouseEvent *)
|
|
{
|
|
setDescriptionEnabled(false);
|
|
}
|
|
|
|
void GradientRenderer::paint(QPainter *p)
|
|
{
|
|
QPolygonF pts = m_hoverPoints->points();
|
|
|
|
QGradient g;
|
|
|
|
if (m_gradientType == Qt::LinearGradientPattern) {
|
|
g = QLinearGradient(pts.at(0), pts.at(1));
|
|
|
|
} else if (m_gradientType == Qt::RadialGradientPattern) {
|
|
g = QRadialGradient(pts.at(0), qMin(width(), height()) / 3.0, pts.at(1));
|
|
|
|
} else {
|
|
QLineF l(pts.at(0), pts.at(1));
|
|
qreal angle = l.angle(QLineF(0, 0, 1, 0));
|
|
if (l.dy() > 0)
|
|
angle = 360 - angle;
|
|
g = QConicalGradient(pts.at(0), angle);
|
|
}
|
|
|
|
for (int i=0; i<m_stops.size(); ++i)
|
|
g.setColorAt(m_stops.at(i).first, m_stops.at(i).second);
|
|
|
|
g.setSpread(m_spread);
|
|
|
|
p->setBrush(g);
|
|
p->setPen(Qt::NoPen);
|
|
|
|
p->drawRect(rect());
|
|
|
|
}
|