ArchitectureColoredPainting/qt-material-widgets/components/qtmaterialscrollbar.cpp

213 lines
4.4 KiB
C++

#include "qtmaterialscrollbar.h"
#include "qtmaterialscrollbar_p.h"
#include <QPainter>
#include <QPainterPath>
#include <QDebug>
#include "qtmaterialscrollbar_internal.h"
#include "lib/qtmaterialstyle.h"
/*!
* \class QtMaterialScrollBarPrivate
* \internal
*/
QtMaterialScrollBarPrivate::QtMaterialScrollBarPrivate(QtMaterialScrollBar *q)
: q_ptr(q)
{
}
QtMaterialScrollBarPrivate::~QtMaterialScrollBarPrivate()
{
}
void QtMaterialScrollBarPrivate::init()
{
Q_Q(QtMaterialScrollBar);
stateMachine = new QtMaterialScrollBarStateMachine(q);
hideOnMouseOut = true;
useThemeColors = true;
q->setMouseTracking(true);
q->setStyle(&QtMaterialStyle::instance());
q->setStyleSheet("QScrollBar:vertical { margin: 0; }"
"QScrollBar::add-line:vertical { height: 0; margin: 0; }"
"QScrollBar::sub-line:vertical { height: 0; margin: 0; }");
stateMachine->start();
}
/*!
* \class QtMaterialScrollBar
*/
QtMaterialScrollBar::QtMaterialScrollBar(QWidget *parent)
: QScrollBar(parent),
d_ptr(new QtMaterialScrollBarPrivate(this))
{
d_func()->init();
}
QtMaterialScrollBar::~QtMaterialScrollBar()
{
}
/*!
* \reimp
*/
QSize QtMaterialScrollBar::sizeHint() const
{
if (Qt::Horizontal == orientation()) {
return QSize(1, 10);
} else {
return QSize(10, 1);
}
}
void QtMaterialScrollBar::setUseThemeColors(bool value)
{
Q_D(QtMaterialScrollBar);
if (d->useThemeColors == value) {
return;
}
d->useThemeColors = value;
update();
}
bool QtMaterialScrollBar::useThemeColors() const
{
Q_D(const QtMaterialScrollBar);
return d->useThemeColors;
}
void QtMaterialScrollBar::setCanvasColor(const QColor &color)
{
Q_D(QtMaterialScrollBar);
d->canvasColor = color;
MATERIAL_DISABLE_THEME_COLORS
update();
}
QColor QtMaterialScrollBar::canvasColor() const
{
Q_D(const QtMaterialScrollBar);
if (d->useThemeColors || !d->canvasColor.isValid()) {
return parentWidget()->palette().color(backgroundRole());
} else {
return d->canvasColor;
}
}
void QtMaterialScrollBar::setBackgroundColor(const QColor &color)
{
Q_D(QtMaterialScrollBar);
d->backgroundColor = color;
MATERIAL_DISABLE_THEME_COLORS
update();
}
QColor QtMaterialScrollBar::backgroundColor() const
{
Q_D(const QtMaterialScrollBar);
if (d->useThemeColors || !d->backgroundColor.isValid()) {
return QtMaterialStyle::instance().themeColor("border");
} else {
return d->backgroundColor;
}
}
void QtMaterialScrollBar::setSliderColor(const QColor &color)
{
Q_D(QtMaterialScrollBar);
d->sliderColor = color;
MATERIAL_DISABLE_THEME_COLORS
update();
}
QColor QtMaterialScrollBar::sliderColor() const
{
Q_D(const QtMaterialScrollBar);
if (d->useThemeColors || !d->sliderColor.isValid()) {
return QtMaterialStyle::instance().themeColor("primary1");
} else {
return d->sliderColor;
}
}
void QtMaterialScrollBar::setHideOnMouseOut(bool value)
{
Q_D(QtMaterialScrollBar);
d->hideOnMouseOut = value;
update();
}
bool QtMaterialScrollBar::hideOnMouseOut() const
{
Q_D(const QtMaterialScrollBar);
return d->hideOnMouseOut;
}
/*!
* \reimp
*/
void QtMaterialScrollBar::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event)
Q_D(QtMaterialScrollBar);
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
painter.fillRect(rect(), canvasColor());
int x, y, w, h;
rect().getRect(&x, &y, &w, &h);
QMargins margins(2, 2, 2, 2);
QBrush brush;
brush.setStyle(Qt::SolidPattern);
brush.setColor(backgroundColor());
painter.setBrush(brush);
painter.setPen(Qt::NoPen);
if (d->hideOnMouseOut) {
painter.setOpacity(d->stateMachine->opacity());
}
QRect trimmed(rect().marginsRemoved(margins));
QPainterPath path;
path.addRoundedRect(trimmed, 3, 3);
painter.setClipPath(path);
painter.drawRect(trimmed);
const qreal q = (Qt::Horizontal == orientation() ? w : h) /
static_cast<qreal>(maximum()-minimum()+pageStep()-1);
QRect handle = Qt::Horizontal == orientation()
? QRect(sliderPosition()*q, y, pageStep()*q, h)
: QRect(x, sliderPosition()*q, w, pageStep()*q);
brush.setColor(sliderColor());
painter.setBrush(brush);
painter.drawRoundedRect(handle, 9, 9);
}