VolumeSlider::VolumeSlider(QWidget *p)
: QSlider(p)
, lineWidth(0)
, shown(false)
, down(false)
, fadingStop(false)
, muteAction(0)
, menu(0)
{
widthStep=Utils::touchFriendly() ? 5 : 4;
setRange(0, 100);
setPageStep(Settings::self()->volumeStep());
lineWidth=Utils::scaleForDpi(1);
int w=lineWidth*widthStep*19;
int h=lineWidth*constHeightStep*10;
setFixedHeight(h+1);
setFixedWidth(w);
setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
setOrientation(Qt::Horizontal);
setFocusPolicy(Qt::NoFocus);
setStyle(new VolumeSliderProxyStyle());
setStyleSheet(QString("QSlider::groove:horizontal {border: 0px;} "
"QSlider::sub-page:horizontal {border: 0px;} "
"QSlider::handle:horizontal {width: 0px; height:0px; margin:0;}"));
textCol=clampColor(palette().color(QPalette::Active, QPalette::Text));
generatePixmaps();
}
void VolumeSlider::showEvent(QShowEvent *ev)
{
if (!shown) {
shown=true;
QLabel lbl(parentWidget());
lbl.ensurePolished();
QColor col=clampColor(lbl.palette().text().color());
if (col!=textCol) {
textCol=col;
generatePixmaps();
}
}
QSlider::showEvent(ev);
}
void BoxStyle::optimizedPaint(QPainter* painter, int xOffset, int yOffset, int contentBoxWidth,
int contentBoxHeight) const
{
qreal scaleFactor = painter->worldTransform().m11();
int outlineWidth = outline_.style()==Qt::SolidLine ? outline_.width() : 0;
int halfOutline = std::ceil(outlineWidth/2.0);
if (corner_ == CornerType::RightAngle || cornerRadius_*scaleFactor <= 1.0 )
{
int innerWidth = contentBoxWidth - 2*halfOutline;
int innerHieght = contentBoxHeight - 2*halfOutline;
// Note that the half of the outline overlaps the background.
// Draw a simplified version
if (background_.style() == Qt::SolidPattern)
painter->fillRect(xOffset + halfOutline, yOffset + halfOutline, innerWidth, innerHieght, background_.color());
// Paint outline
if (outline_.style() == Qt::SolidLine)
{
//Top
painter->fillRect(xOffset, yOffset, contentBoxWidth, outlineWidth, outline_.color());
//Left
painter->fillRect(xOffset, yOffset + outlineWidth, outlineWidth,
contentBoxHeight-2*outlineWidth, outline_.color());
//Bottom
painter->fillRect(xOffset, yOffset + contentBoxHeight - outlineWidth, contentBoxWidth,
outlineWidth, outline_.color());
//Right
painter->fillRect(xOffset + contentBoxWidth - outlineWidth, yOffset + outlineWidth,
outlineWidth, contentBoxHeight-2*outlineWidth, outline_.color());
}
return;
}
int subImageSize = cornerRadius_ + halfOutline;
// Paint corners
if (cornerRadius_ > 0)
{
if (scaleFactor*cornerRadius_ >= 1)
{
// Draw the corners in case there are at least one pixel
bool hasScale = topLeftCorner_.paint(painter, xOffset, yOffset);
if (!hasScale)
{
generatePixmaps(scaleFactor, painter);
topLeftCorner_.paint(painter, xOffset, yOffset);
}
int rightCornerStart = contentBoxWidth - subImageSize;
int bottomCornerStart = contentBoxHeight - subImageSize;
topRightCorner_.paint(painter, xOffset + rightCornerStart, yOffset);
bottomLeftCorner_.paint(painter, xOffset, yOffset + bottomCornerStart);
bottomRightCorner_.paint(painter, xOffset + rightCornerStart, yOffset + bottomCornerStart);
}
}
int innerWidth = contentBoxWidth - 2*subImageSize;
int innerHeight = contentBoxHeight - 2*subImageSize;
// Paint background
if (background_.style() == Qt::SolidPattern)
{
// vertical middle
painter->fillRect(xOffset + subImageSize, yOffset + outlineWidth,
innerWidth, contentBoxHeight - 2*outlineWidth, background_.color());
// left
painter->fillRect(xOffset + outlineWidth, yOffset + subImageSize,
subImageSize - outlineWidth, innerHeight, background_.color());
// right
painter->fillRect(xOffset + contentBoxWidth - subImageSize, yOffset + subImageSize,
subImageSize - outlineWidth, innerHeight, background_.color());
}
// Paint outline
if (outline_.style() == Qt::SolidLine)
{
// top
painter->fillRect(xOffset + subImageSize, yOffset,
innerWidth, outlineWidth, outline_.color());
// bottom
painter->fillRect(xOffset + subImageSize, yOffset + contentBoxHeight - outlineWidth,
innerWidth, outlineWidth, outline_.color());
// left
painter->fillRect(xOffset , yOffset + subImageSize,
outlineWidth, innerHeight, outline_.color());
// right
painter->fillRect(xOffset + contentBoxWidth - outlineWidth, yOffset + subImageSize,
outlineWidth, innerHeight, outline_.color());
}
}
