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plasma: animate the hover of pager applet

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beauty!

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2024-05-01 07:21:50 +03:00
parent d10a43fa12
commit 2a2e7d649f
1 changed files with 56 additions and 14 deletions
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70
plasma/applets/pager/pager.cpp
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@ -21,6 +21,7 @@
#include <QX11Info>
#include <QGridLayout>
#include <QLabel>
#include <QPropertyAnimation>
#include <Plasma/Svg>
#include <Plasma/FrameSvg>
#include <Plasma/SvgWidget>
@ -35,12 +36,13 @@
// standard issue margin/spacing
static const int s_spacing = 4;
static PagerApplet::PagerMode s_defaultpagermode = PagerApplet::ShowName;
// NOTE: same as the one in:
// kdelibs/plasma/animations/animation.cpp
static const int s_animationduration = 250;
static QString kElementPrefixForDesktop(const int desktop, const bool hovered)
static QString kElementPrefixForDesktop(const int desktop)
{
if (hovered) {
return QString::fromLatin1("hover");
} else if (KWindowSystem::currentDesktop() == desktop) {
if (KWindowSystem::currentDesktop() == desktop) {
return QString::fromLatin1("active");
}
return QString::fromLatin1("normal");
@ -98,9 +100,13 @@ static bool kHandleMouseEvent(QGraphicsSceneMouseEvent *event)
class PagerSvg : public Plasma::SvgWidget
{
Q_OBJECT
Q_PROPERTY(qreal hover READ hover WRITE setHover)
public:
PagerSvg(const int desktop, const PagerApplet::PagerMode pagermode, QGraphicsItem *parent = nullptr);
qreal hover() const;
void setHover(qreal hover);
void setup(const PagerApplet::PagerMode pagermode);
protected:
@ -118,8 +124,10 @@ private Q_SLOTS:
private:
int m_desktop;
bool m_hovered;
Plasma::FrameSvg* m_framesvg;
Plasma::FrameSvg* m_hoversvg;
QPropertyAnimation* m_animation;
qreal m_hover;
PagerApplet::PagerMode m_pagermode;
// updateGeometry() is protected but size hint is based on orientation and geometry has to be
@ -130,8 +138,10 @@ private:
PagerSvg::PagerSvg(const int desktop, const PagerApplet::PagerMode pagermode, QGraphicsItem *parent)
: Plasma::SvgWidget(parent),
m_desktop(desktop),
m_hovered(false),
m_framesvg(nullptr),
m_hoversvg(nullptr),
m_animation(nullptr),
m_hover(0.0),
m_pagermode(pagermode)
{
setAcceptHoverEvents(true);
@ -155,6 +165,17 @@ PagerSvg::PagerSvg(const int desktop, const PagerApplet::PagerMode pagermode, QG
);
}
qreal PagerSvg::hover() const
{
return m_hover;
}
void PagerSvg::setHover(qreal hover)
{
m_hover = hover;
update();
}
void PagerSvg::setup(const PagerApplet::PagerMode pagermode)
{
m_pagermode = pagermode;
@ -228,9 +249,14 @@ void PagerSvg::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
painter->setFont(kGetFont());
const QRectF brect = boundingRect();
const QSizeF brectsize = brect.size();
m_framesvg->setElementPrefix(kElementPrefixForDesktop(m_desktop, m_hovered));
m_framesvg->setElementPrefix(kElementPrefixForDesktop(m_desktop));
m_framesvg->resizeFrame(brectsize);
m_framesvg->paintFrame(painter, brect);
const qreal oldopacity = painter->opacity();
painter->setOpacity(m_hover);
m_hoversvg->resizeFrame(brectsize);
m_hoversvg->paintFrame(painter, brect);
painter->setOpacity(oldopacity);
QString pagertext;
switch (m_pagermode) {
case PagerApplet::ShowNumber: {
@ -258,15 +284,29 @@ void PagerSvg::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
void PagerSvg::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
Q_UNUSED(event);
m_hovered = true;
update();
if (m_animation) {
m_animation->stop();
} else {
m_animation = new QPropertyAnimation(this, "hover", this);
m_animation->setDuration(s_animationduration);
}
m_animation->setStartValue(hover());
m_animation->setEndValue(1.0);
m_animation->start(QAbstractAnimation::KeepWhenStopped);
}
void PagerSvg::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
Q_UNUSED(event);
m_hovered = false;
update();
if (m_animation) {
m_animation->stop();
} else {
m_animation = new QPropertyAnimation(this, "hover", this);
m_animation->setDuration(s_animationduration);
}
m_animation->setStartValue(hover());
m_animation->setEndValue(0.0);
m_animation->start(QAbstractAnimation::KeepWhenStopped);
}
void PagerSvg::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
@ -292,12 +332,14 @@ void PagerSvg::slotUpdate()
void PagerSvg::slotUpdateSvgAndToolTip()
{
if (m_framesvg) {
delete m_framesvg;
}
delete m_framesvg;
delete m_hoversvg;
m_framesvg = new Plasma::FrameSvg(this);
m_framesvg->setImagePath("widgets/pager");
setSvg(m_framesvg);
m_hoversvg = new Plasma::FrameSvg(this);
m_hoversvg->setImagePath("widgets/pager");
m_hoversvg->setElementPrefix(QString::fromLatin1("hover"));
Plasma::ToolTipContent plasmatooltip;
plasmatooltip.setMainText(QString::fromLatin1("<center>%1</center>").arg(KWindowSystem::desktopName(m_desktop)));
Plasma::ToolTipManager::self()->setContent(this, plasmatooltip);