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eventFiltering.cpp
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eventFiltering.cpp
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/*
* Copyright (C) Pedram Pourang (aka Tsu Jan) 2014-2023 <tsujan2000@gmail.com>
*
* Kvantum 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.
*
* Kvantum 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Kvantum.h"
#include <QLibrary> // only for setGtkVariant()
#include <QPainter>
#include <QTimer>
#include <QApplication>
#include <QToolBar>
#include <QMainWindow>
#include <QPushButton>
#include <QCommandLinkButton>
#include <QComboBox>
#include <QLineEdit>
#include <QProgressBar>
#include <QMenu>
#include <QGroupBox>
#include <QAbstractScrollArea>
#include <QScrollBar>
#include <QDoubleSpinBox>
#include <QDateTimeEdit>
#include <QPaintEvent>
#include <QMenuBar>
#include <QDialog>
#include <QWindow> // for positioning menus
#include <QScreen> // for positioning menus
#include <QStylePainter>
namespace Kvantum
{
static void setGtkVariant(QWidget *widget, bool dark) // by Craig Drummond
{
if (!widget || QLatin1String("xcb")!=qApp->platformName()) {
return;
}
static const char *_GTK_THEME_VARIANT="_GTK_THEME_VARIANT";
// Check if already set
QByteArray styleVar = dark ? "dark" : "light";
QVariant var=widget->property("_GTK_THEME_VARIANT");
if (var.isValid() && var.toByteArray()==styleVar) {
return;
}
// Typedef's from xcb/xcb.h - copied so that there is no
// direct xcb dependency
typedef quint32 XcbAtom;
struct XcbInternAtomCookie {
unsigned int sequence;
};
struct XcbInternAtomReply {
quint8 response_type;
quint8 pad0;
quint16 sequence;
quint32 length;
XcbAtom atom;
};
typedef void * (*XcbConnectFn)(int, int);
typedef XcbInternAtomCookie (*XcbInternAtomFn)(void *, int, int, const char *);
typedef XcbInternAtomReply * (*XcbInternAtomReplyFn)(void *, XcbInternAtomCookie, int);
typedef int (*XcbChangePropertyFn)(void *, int, int, XcbAtom, XcbAtom, int, int, const void *);
typedef int (*XcbFlushFn)(void *);
static QLibrary *lib = 0;
static XcbAtom variantAtom = 0;
static XcbAtom utf8TypeAtom = 0;
static void *xcbConn = 0;
static XcbChangePropertyFn XcbChangePropertyFnPtr = 0;
static XcbFlushFn XcbFlushFnPtr = 0;
if (!lib) {
lib = new QLibrary("libxcb", qApp);
if (lib->load()) {
XcbConnectFn XcbConnectFnPtr=(XcbConnectFn)lib->resolve("xcb_connect");
XcbInternAtomFn XcbInternAtomFnPtr=(XcbInternAtomFn)lib->resolve("xcb_intern_atom");
XcbInternAtomReplyFn XcbInternAtomReplyFnPtr=(XcbInternAtomReplyFn)lib->resolve("xcb_intern_atom_reply");
XcbChangePropertyFnPtr=(XcbChangePropertyFn)lib->resolve("xcb_change_property");
XcbFlushFnPtr=(XcbFlushFn)lib->resolve("xcb_flush");
if (XcbConnectFnPtr && XcbInternAtomFnPtr && XcbInternAtomReplyFnPtr && XcbChangePropertyFnPtr && XcbFlushFnPtr) {
xcbConn=(*XcbConnectFnPtr)(0, 0);
if (xcbConn) {
XcbInternAtomReply *typeReply = (*XcbInternAtomReplyFnPtr)(xcbConn, (*XcbInternAtomFnPtr)(xcbConn, 0, 11, "UTF8_STRING"), 0);
if (typeReply) {
XcbInternAtomReply *gtkVarReply = (*XcbInternAtomReplyFnPtr)(xcbConn, (*XcbInternAtomFnPtr)(xcbConn, 0, strlen(_GTK_THEME_VARIANT),
_GTK_THEME_VARIANT), 0);
if (gtkVarReply) {
utf8TypeAtom = typeReply->atom;
variantAtom = gtkVarReply->atom;
free(gtkVarReply);
}
free(typeReply);
}
}
}
}
}
if (0!=variantAtom) {
(*XcbChangePropertyFnPtr)(xcbConn, 0, widget->effectiveWinId(), variantAtom, utf8TypeAtom, 8,
styleVar.length(), (const void *)styleVar.constData());
(*XcbFlushFnPtr)(xcbConn);
widget->setProperty(_GTK_THEME_VARIANT, styleVar);
}
}
void Style::drawBg(QPainter *p, const QWidget *widget) const
{
if (widget->palette().color(widget->backgroundRole()) == Qt::transparent)
return; // Plasma FIXME: needed?
QRect bgndRect(widget->rect());
interior_spec ispec = getInteriorSpec(QStringLiteral("DialogTranslucent"));
size_spec sspec = getSizeSpec(QStringLiteral("DialogTranslucent"));
if (ispec.element.isEmpty())
{
ispec = getInteriorSpec(QStringLiteral("Dialog"));
sspec = getSizeSpec(QStringLiteral("Dialog"));
}
if (!ispec.element.isEmpty()
&& !widget->windowFlags().testFlag(Qt::FramelessWindowHint)) // not a panel
{
if (QWidget *child = widget->childAt(0,0))
{ // even dialogs may have menubar or toolbar (as in Qt Designer)
if (qobject_cast<QMenuBar*>(child) || qobject_cast<QToolBar*>(child))
{
ispec = getInteriorSpec(QStringLiteral("WindowTranslucent"));
sspec = getSizeSpec(QStringLiteral("WindowTranslucent"));
if (ispec.element.isEmpty())
{
ispec = getInteriorSpec(QStringLiteral("Window"));
sspec = getSizeSpec(QStringLiteral("Window"));
}
}
}
}
else
{
ispec = getInteriorSpec(QStringLiteral("WindowTranslucent"));
sspec = getSizeSpec(QStringLiteral("WindowTranslucent"));
if (ispec.element.isEmpty())
{
ispec = getInteriorSpec(QStringLiteral("Window"));
sspec = getSizeSpec(QStringLiteral("Window"));
}
}
frame_spec fspec;
default_frame_spec(fspec);
QString suffix = "-normal";
bool isInactive(isWidgetInactive(widget));
if (isInactive)
suffix = "-normal-inactive";
if (tspec_.no_window_pattern && (ispec.px > 0 || ispec.py > 0))
ispec.px = -2; // no tiling pattern with translucency
p->setClipRegion(bgndRect, Qt::IntersectClip);
int ro = tspec_.reduce_window_opacity;
if (ro < 0)
{
if (isInactive) ro = -ro;
else ro = 0;
}
if (ro > 0)
{
p->save();
p->setOpacity(1.0 - static_cast<qreal>(ro)/100.0);
}
int dh = sspec.incrementH ? sspec.minH : qMax(sspec.minH - bgndRect.height(), 0);
int dw = sspec.incrementW ? sspec.minW : qMax(sspec.minW - bgndRect.width(), 0);
if (!renderInterior(p,bgndRect.adjusted(0,0,dw,dh),fspec,ispec,ispec.element+suffix))
{ // no window interior element but with reduced translucency
p->fillRect(bgndRect, standardPalette().color(suffix.contains(QLatin1String("-inactive"))
? QPalette::Inactive
: QPalette::Active,
QPalette::Window));
}
if (ro > 0)
p->restore();
}
static inline bool isAnimatedScrollArea(QWidget *w)
{
auto sa = qobject_cast<QAbstractScrollArea*>(w);
return (sa != nullptr
// -> polish(QWidget *widget)
&& (sa->frameStyle() & QFrame::StyledPanel)
&& (sa->backgroundRole() == QPalette::Window
|| sa->backgroundRole() == QPalette::Button)
&& sa->viewport() != nullptr
&& sa->viewport()->autoFillBackground()
&& sa->viewport()->backgroundRole() != QPalette::Window
&& sa->viewport()->backgroundRole() != QPalette::Button
// exclude combo popups
&& !w->inherits("QComboBoxListView"));
}
bool Style::eventFilter(QObject *o, QEvent *e)
{
QWidget *w = qobject_cast<QWidget*>(o);
switch (e->type()) {
case QEvent::Paint:
if (w)
{
if (w->inherits("KisAbstractSliderSpinBox") || w->inherits("Digikam::DAbstractSliderSpinBox"))
isKisSlider_ = true;
else if (qobject_cast<QProgressBar*>(o))
isKisSlider_ = false;
else if (w->isWindow()
&& w->testAttribute(Qt::WA_StyledBackground)
&& w->testAttribute(Qt::WA_TranslucentBackground)
&& !isPlasma_ && !isOpaque_ && !subApp_ /*&& !isLibreoffice_
&& tspec_.translucent_windows*/ // this could have weird effects with style or settings change
)
{
int t = (w->windowFlags() & Qt::WindowType_Mask);
if (t == Qt::Window || t == Qt::Dialog
|| t == Qt::Popup || t == Qt::ToolTip || t == Qt::Sheet
/* the window type may have changed after polishing
but we accept Qt::Tool (as with a dialog in Krita) */
|| (t == Qt::Tool && forcedTranslucency_.contains(w)))
{
if (qobject_cast<QMenu*>(w)) break; // QMenu has a filter event too
QPainter p(w);
p.setClipRegion(static_cast<QPaintEvent*>(e)->region());
drawBg(&p,w);
}
}
else if (!w->underMouse() && w->inherits("KMultiTabBarTab"))
{
if (QPushButton *pb = qobject_cast<QPushButton*>(o))
{
if (!pb->isChecked())
{
QPainter p(w);
QStyleOptionToolButton opt;
opt.initFrom(w);
opt.state |= QStyle::State_AutoRaise;
drawPrimitive(QStyle::PE_PanelButtonTool,&opt,&p,w);
}
}
}
else if (QCommandLinkButton *cbtn = qobject_cast<QCommandLinkButton*>(o))
{
/* as in Qt -> qcommandlinkbutton.cpp -> QCommandLinkButton::paintEvent()
but with modifications for taking into account icon states and text colors */
QStylePainter p(cbtn);
p.save();
QStyleOptionButton option;
option.initFrom(cbtn);
option.features |= QStyleOptionButton::CommandLinkButton;
option.text = QString();
option.icon = QIcon(); // we draw the icon ourself
if (cbtn->isChecked())
option.state |= State_On;
else if (cbtn->isDown())
option.state |= State_Sunken;
else if (cbtn->underMouse())
option.state |= State_MouseOver;
/* panel */
p.drawControl(QStyle::CE_PushButton, option);
const int leftMargin = 7;
const int topMargin = 10;
const int rightMargin = 4;
const int bottomMargin = 10;
int vOffset = 0, hOffset = 0;
if (cbtn->isDown() && !cbtn->isChecked())
{
vOffset = pixelMetric(QStyle::PM_ButtonShiftVertical);
hOffset = pixelMetric(QStyle::PM_ButtonShiftHorizontal);
}
bool isInactive(isWidgetInactive(cbtn));
const label_spec lspec = getLabelSpec("PanelButtonCommand");
/* find the state and set the text color accordingly */
int state;
QPalette pPalette = option.palette;
QColor col, disabledCol;
if (!cbtn->isEnabled())
{
state = 0;
if (cbtn->isChecked())
{
if (isInactive)
disabledCol = getFromRGBA(lspec.toggleInactiveColor);
if (!disabledCol.isValid())
disabledCol = getFromRGBA(lspec.toggleColor);
if (disabledCol.isValid())
{
disabledCol.setAlpha(102); // 0.4 * disabledCol.alpha()
pPalette.setColor(QPalette::Disabled, QPalette::ButtonText, disabledCol);
}
}
}
else if (cbtn->isChecked())
{
state = 4;
if (isInactive)
col = getFromRGBA(lspec.toggleInactiveColor);
if (!col.isValid())
col = getFromRGBA(lspec.toggleColor);
}
else if (cbtn->isDown())
{
state = 3;
if (isInactive)
col = getFromRGBA(lspec.pressInactiveColor);
if (!col.isValid())
col = getFromRGBA(lspec.pressColor);
}
else if (cbtn->underMouse())
{
state = 2;
if (isInactive)
col = getFromRGBA(lspec.focusInactiveColor);
if (!col.isValid())
col = getFromRGBA(lspec.focusColor);
}
else
{
state = 1;
if (isInactive)
col = getFromRGBA(lspec.normalInactiveColor);
if (!col.isValid())
col = getFromRGBA(lspec.normalColor);
}
if (col.isValid())
pPalette.setColor(QPalette::ButtonText, col);
/* icon */
if (!cbtn->icon().isNull())
p.drawPixmap(leftMargin + hOffset, topMargin + vOffset,
getPixmapFromIcon(cbtn->icon(),
getIconMode(disabledCol.isValid()
&& !enoughContrast(disabledCol,
standardPalette().color(QPalette::Window))
? -1 : state,
isInactive, lspec),
cbtn->isChecked() ? QIcon::On : QIcon::Off,
cbtn->iconSize()));
int textflags = Qt::TextShowMnemonic;
if (!styleHint(QStyle::SH_UnderlineShortcut, &option, cbtn))
textflags |= Qt::TextHideMnemonic;
textflags |= Qt::AlignTop; // (see Kvantum.cpp -> Style::drawItemText)
if (cbtn->layoutDirection() == Qt::RightToLeft)
textflags |= Qt::AlignRight;
else
textflags |= Qt::AlignLeft;
/* This is what QCommandLinkButtonPrivate::titleFont() does.
It's bad because the font shouldn't be fixed. */
QFont titleFont = cbtn->font();
titleFont.setBold(true);
titleFont.setPointSizeF(9.0);
/* title */
p.setFont(titleFont);
int textOffset = cbtn->icon().actualSize(cbtn->iconSize()).width() + leftMargin + 6;
QRect titleRect = cbtn->rect().adjusted(textOffset, topMargin, -rightMargin, 0);
if (cbtn->description().isEmpty())
{
QFontMetrics fm(titleFont);
titleRect.setTop(titleRect.top()
+ qMax(0, (cbtn->icon().actualSize(cbtn->iconSize()).height()
- fm.height()) / 2));
}
p.drawItemText(titleRect.translated(hOffset, vOffset),
textflags, pPalette, cbtn->isEnabled(), cbtn->text(), QPalette::ButtonText);
/* description */
textflags |= Qt::TextWordWrap | Qt::ElideRight;
QFont descriptionFont = cbtn->font();
descriptionFont.setPointSizeF(9.0); // -> QCommandLinkButtonPrivate::descriptionFont()
p.setFont(descriptionFont);
QFontMetrics fm(titleFont);
int descriptionOffset = topMargin + fm.height();
QRect descriptionRect = cbtn->rect().adjusted(textOffset, descriptionOffset,
-rightMargin, -bottomMargin);
p.drawItemText(descriptionRect.translated(hOffset, vOffset), textflags,
pPalette, cbtn->isEnabled(), cbtn->description(), QPalette::ButtonText);
p.restore();
return true; // don't let QCommandLinkButton::paintEvent() be called
}
}
break;
case QEvent::HoverMove:
if (QTabBar *tabbar = qobject_cast<QTabBar*>(o))
{ // see QEvent::HoverEnter below
QHoverEvent *he = static_cast<QHoverEvent*>(e);
#if (QT_VERSION < QT_VERSION_CHECK(6,0,0))
int indx = tabbar->tabAt(he->pos());
#else
int indx = tabbar->tabAt(he->position().toPoint());
#endif
if (indx > -1)
{
int diff = qAbs(indx - tabbar->currentIndex());
if (tabHoverRect_.isNull()
&& diff == 1)
{
/* the cursor has moved to a tab adjacent to the active tab */
QRect r = tabbar->tabRect(indx);
const frame_spec fspec = getFrameSpec(QStringLiteral("Tab"));
int overlap = tspec_.active_tab_overlap;
int exp = qMin(fspec.expansion, qMin(r.width(), r.height())) / 2 + 1;
overlap = qMin(overlap, qMax(exp, qMax(fspec.left, fspec.right)));
if (tabbar->shape() == QTabBar::RoundedWest
|| tabbar->shape() == QTabBar::RoundedEast
|| tabbar->shape() == QTabBar::TriangularWest
|| tabbar->shape() == QTabBar::TriangularEast)
{
tabHoverRect_ = r.adjusted(0,-overlap,0,overlap);
}
else
tabHoverRect_ = r.adjusted(-overlap,0,overlap,0);
tabbar->update(tabHoverRect_);
}
else if (!tabHoverRect_.isNull()
&& (diff == 0 || diff == 2))
{
/* the cursor has left a tab adjacent to the active tab
and moved to the active tab or the next inactive tab */
tabbar->update(tabHoverRect_);
tabHoverRect_ = QRect();
}
}
else if (!tabHoverRect_.isNull())
{
/* the cursor has left a tab adjacent to the active tab
and moved to an empty place on the tabbar */
tabbar->update(tabHoverRect_);
tabHoverRect_ = QRect();
}
}
break;
case QEvent::HoverEnter:
if (QTabBar *tabbar = qobject_cast<QTabBar*>(o))
{
/* In qtabbar.cpp -> QTabBar::event(), Qt updates only the tab rect
when the cursor moves between the tab widget and the tab, which
results in an ugly hover effect with overlapping. So, we update
the extended tab rect when there's an overlapping. */
QHoverEvent *he = static_cast<QHoverEvent*>(e);
#if (QT_VERSION < QT_VERSION_CHECK(6,0,0))
int indx = tabbar->tabAt(he->pos());
#else
int indx = tabbar->tabAt(he->position().toPoint());
#endif
if (indx > -1 && qAbs(indx - tabbar->currentIndex()) == 1)
{
QRect r = tabbar->tabRect(indx);
const frame_spec fspec = getFrameSpec(QStringLiteral("Tab"));
int overlap = tspec_.active_tab_overlap;
int exp = qMin(fspec.expansion, qMin(r.width(), r.height())) / 2 + 1;
overlap = qMin(overlap, qMax(exp, qMax(fspec.left, fspec.right)));
if (tabbar->shape() == QTabBar::RoundedWest
|| tabbar->shape() == QTabBar::RoundedEast
|| tabbar->shape() == QTabBar::TriangularWest
|| tabbar->shape() == QTabBar::TriangularEast)
{
tabHoverRect_ = r.adjusted(0,-overlap,0,overlap);
}
else
tabHoverRect_ = r.adjusted(-overlap,0,overlap,0);
tabbar->update(tabHoverRect_);
}
else
tabHoverRect_ = QRect();
}
else if (w && w->isEnabled() && tspec_.animate_states
/* WARNING: Toolbars and translucent windows have hover-enter event! */
&& !w->isWindow() && !qobject_cast<QToolBar*>(o)
&& !qobject_cast<QAbstractSpinBox*>(o) && !qobject_cast<QProgressBar*>(o)
&& !qobject_cast<QLineEdit*>(o) && !qobject_cast<QAbstractScrollArea*>(o)
&& !((tspec_.combo_as_lineedit || tspec_.square_combo_button)
&& qobject_cast<QComboBox*>(o) && qobject_cast<QComboBox*>(o)->lineEdit()))
{
/* if another animation is in progress, end it */
if (animatedWidget_ && animatedWidget_ != w
&& !w->inherits("QComboBoxPrivateContainer")) // Qt4
{
if (opacityTimer_->isActive())
{
opacityTimer_->stop();
animationOpacity_ = 100;
animatedWidget_->update();
}
animatedWidget_ = nullptr;
}
if (qobject_cast<QAbstractButton*>(o) || qobject_cast<QGroupBox*>(o))
{
/* the animations are started/stopped inside
the drawing functions by using styleObject */
animatedWidget_ = w;
}
else if (qobject_cast<QComboBox*>(o))
{
if (!w->hasFocus())
animationStartState_ = "normal";
/* the popup may have been closed (with Qt5) */
else if (!(animatedWidget_ == w && animationStartState_.startsWith(QLatin1String("c-toggled"))))
animationStartState_ = "pressed";
if (isWidgetInactive(w))
animationStartState_.append("-inactive");
animatedWidget_ = w;
animationOpacity_ = 0;
opacityTimer_->start(ANIMATION_FRAME);
}
else if (qobject_cast<QScrollBar*>(o) || qobject_cast<QSlider*>(o))
{
animationStartState_ = "normal";
if (isWidgetInactive(w))
animationStartState_.append("-inactive");
animatedWidget_ = w;
animationOpacity_ = 0;
opacityTimer_->start(ANIMATION_FRAME);
}
}
break;
case QEvent::FocusIn:
if (w && w->isEnabled() && tspec_.animate_states)
{
if (qobject_cast<QComboBox*>(o)
&& !((tspec_.combo_as_lineedit || tspec_.square_combo_button) && qobject_cast<QComboBox*>(o)->lineEdit()))
{ // QEvent::MouseButtonPress may follow this
if (animatedWidget_ // the cusror may have been on the popup scrollbar
&& opacityTimer_->isActive())
{
opacityTimer_->stop();
animationOpacity_ = 100;
animatedWidget_->update();
}
if (!(animatedWidget_ == w
&& (animationStartState_.startsWith(QLatin1String("c-toggled"))
|| animationStartState_.startsWith(QLatin1String("normal")))))
{ // it was hidden or another widget was interacted with -- there's no other possibility
animationStartState_ = "normal";
if (isWidgetInactive(w))
animationStartState_.append("-inactive");
}
animatedWidget_ = w;
animationOpacity_ = 0;
opacityTimer_->start(ANIMATION_FRAME);
}
else
{
if ((isAnimatedScrollArea(w)
// no animation without the top focused generic frame
&& elementExists(getFrameSpec(QStringLiteral("GenericFrame")).element+"-focused-top"))
|| (qobject_cast<QLineEdit*>(o)
// this is only needed for Qt5 -- Qt4 combo lineedits don't have FocusIn event
&& !qobject_cast<QComboBox*>(w->parentWidget()))
|| qobject_cast<QAbstractSpinBox*>(o)
|| ((tspec_.combo_as_lineedit || tspec_.square_combo_button)
&& qobject_cast<QComboBox*>(o) && qobject_cast<QComboBox*>(o)->lineEdit()))
{
/* disable animation if focus-in happens immediately after focus-out
for exactly the same area to prevent flashing */
if (opacityTimerOut_->isActive()
&& (animatedWidgetOut_ == w
|| (animatedWidgetOut_ != nullptr
&& !animatedWidgetOut_->isVisible()
&& animatedWidgetOut_->size() == w->size()
&& animatedWidgetOut_->mapToGlobal(QPoint(0,0)) == w->mapToGlobal(QPoint(0,0)))))
{
opacityTimerOut_->stop();
animationOpacityOut_ = 100;
animatedWidgetOut_ = nullptr;
/* although there will be no animation after this, animationStartStateOut_ doesn't need
to be set here because it's only used with QEvent::FocusOut and will be set there */
break;
}
if (animatedWidget_ && animatedWidget_ != w)
{
if (auto sa = qobject_cast<QAbstractScrollArea*>(w))
{ // no animation when a scrollbar is going to be animated
if ((animatedWidget_ == sa->verticalScrollBar() || animatedWidget_ == sa->horizontalScrollBar())
&& animatedWidget_->rect().contains(animatedWidget_->mapFromGlobal(QCursor::pos())))
{
break;
}
}
if (opacityTimer_->isActive())
{
opacityTimer_->stop();
animationOpacity_ = 100;
animatedWidget_->update();
}
}
animationStartState_ = "normal";
animatedWidget_ = w;
animationOpacity_ = 0;
opacityTimer_->start(ANIMATION_FRAME);
}
}
}
break;
case QEvent::FocusOut:
if (w && w->isEnabled() && tspec_.animate_states)
{
QWidget *popup = QApplication::activePopupWidget();
if (popup && !popup->isAncestorOf(w))
break; // not due to a popup widget
if ((isAnimatedScrollArea(w)
// no animation without the top focused generic frame
&& elementExists(getFrameSpec(QStringLiteral("GenericFrame")).element+"-focused-top"))
|| qobject_cast<QComboBox*>(o)
|| qobject_cast<QLineEdit*>(o)
|| qobject_cast<QAbstractSpinBox*>(o))
{
/* disable animation if focus-out happens immediately after focus-in
for exactly the same area to prevent flashing */
if (opacityTimer_->isActive()
&& (animatedWidget_ == w
|| (animatedWidget_ != nullptr
&& !animatedWidget_->isVisible()
&& animatedWidget_->size() == w->size()
&& animatedWidget_->mapToGlobal(QPoint(0,0)) == w->mapToGlobal(QPoint(0,0)))))
{
opacityTimer_->stop();
animationOpacity_ = 100;
animatedWidget_ = nullptr;
animationStartState_ = "normal"; // should be set; no animation after this
break;
}
if (animatedWidgetOut_ && opacityTimerOut_->isActive())
{
opacityTimerOut_->stop();
animationOpacityOut_ = 100;
animatedWidgetOut_->update();
}
if (qobject_cast<QComboBox*>(o)
&& !((tspec_.combo_as_lineedit || tspec_.square_combo_button) && qobject_cast<QComboBox*>(o)->lineEdit()))
{
animationStartStateOut_ = "pressed";
}
else
animationStartStateOut_ = "focused";
animatedWidgetOut_ = w;
animationOpacityOut_ = 0;
opacityTimerOut_->start(ANIMATION_FRAME);
}
}
break;
case QEvent::HoverLeave:
if (QTabBar *tabbar = qobject_cast<QTabBar*>(o))
{ // see QEvent::HoverEnter above
if (!tabHoverRect_.isNull())
{
tabbar->update(tabHoverRect_);
tabHoverRect_ = QRect();
}
}
// we use HoverLeave and not Leave because of popups of comboxes
else if (w && w->isEnabled() && tspec_.animate_states && animatedWidget_ == w
&& !qobject_cast<QAbstractSpinBox*>(o)
&& !qobject_cast<QLineEdit*>(o) && !qobject_cast<QAbstractScrollArea*>(o)
&& !((tspec_.combo_as_lineedit || tspec_.square_combo_button)
&& qobject_cast<QComboBox*>(o) && qobject_cast<QComboBox*>(o)->lineEdit()))
{
if (qobject_cast<QAbstractButton*>(o) || qobject_cast<QGroupBox*>(o))
{
/* button animations are started/stopped inside their drawing functions
by using styleObject (groupboxes are always checkable here) */
animatedWidget_ = w;
}
else if (!opacityTimer_->isActive())
{
animatedWidget_ = w;
animationOpacity_ = 0;
opacityTimer_->start(ANIMATION_FRAME);
}
}
break;
case QEvent::MouseButtonRelease: {
QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(e);
if (!mouseEvent || mouseEvent->button() != Qt::LeftButton)
break;
if (w && w->isEnabled() && tspec_.animate_states)
{
if (qobject_cast<QAbstractButton*>(o) || qobject_cast<QGroupBox*>(o))
{
if (opacityTimer_->isActive() && animatedWidget_)
{ // finish the previous animation, whether in this widget or not
if (animatedWidget_ == w)
{
animationOpacity_ = 100;
animatedWidget_->repaint();
}
else
{
opacityTimer_->stop();
animationOpacity_ = 100;
animatedWidget_->update();
}
}
animatedWidget_ = w;
animationOpacity_ = 0;
}
else if ((qobject_cast<QComboBox*>(o) // impossible because of popup
&& !((tspec_.combo_as_lineedit || tspec_.square_combo_button) && qobject_cast<QComboBox*>(o)->lineEdit()))
|| qobject_cast<QScrollBar*>(o) || qobject_cast<QSlider*>(o))
{
if (animatedWidget_ && animatedWidget_ != w
&& opacityTimer_->isActive())
{
opacityTimer_->stop();
animationOpacity_ = 100;
animatedWidget_->update();
}
animatedWidget_ = w;
animationOpacity_ = 0;
opacityTimer_->start(ANIMATION_FRAME);
}
}
break;
}
case QEvent::MouseButtonPress: {
QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(e);
if (!mouseEvent || mouseEvent->button() != Qt::LeftButton)
break;
if (w && w->isEnabled() && tspec_.animate_states
&& (qobject_cast<QAbstractButton*>(o)
|| qobject_cast<QGroupBox*>(o)
|| qobject_cast<QSlider*>(o)
|| qobject_cast<QScrollBar*>(o)
|| (qobject_cast<QComboBox*>(o)
&& !((tspec_.combo_as_lineedit || tspec_.square_combo_button) && qobject_cast<QComboBox*>(o)->lineEdit())))
/* FIXME: Can't we just use the condition "animatedWidget_ == w" and exclude the widgets below? */
// these widget are dealt with in QEvent::FocusIn
/*&& !qobject_cast<QAbstractSpinBox*>(o)
&& !qobject_cast<QLineEdit*>(o) && !qobject_cast<QAbstractScrollArea*>(o)*/)
{
if (qobject_cast<QAbstractButton*>(o) || qobject_cast<QGroupBox*>(o))
{
if (opacityTimer_->isActive() && animatedWidget_)
{
if (animatedWidget_ == w)
{
animationOpacity_ = 100;
animatedWidget_->repaint();
}
else
{
opacityTimer_->stop();
animationOpacity_ = 100;
animatedWidget_->update();
}
}
animatedWidget_ = w;
animationOpacity_ = 0;
}
else
{
if (animatedWidget_ && animatedWidget_ != w
&& opacityTimer_->isActive())
{
opacityTimer_->stop();
animationOpacity_ = 100;
animatedWidget_->update();
}
animatedWidget_ = w;
animationOpacity_ = 0;
opacityTimer_->start(ANIMATION_FRAME);
}
}
break;
}
case QEvent::StyleChange:
if (QComboBox *combo = qobject_cast<QComboBox*>(w))
{
if (combo->style() == this // WARNING: Otherwise, the delegate shouldn't be restored.
&& qobject_cast<KvComboItemDelegate*>(combo->itemDelegate()))
{
/* QComboBoxPrivate::updateDelegate() won't work correctly
on style change if the item delegate isn't restored here */
QList<QItemDelegate*> delegates = combo->findChildren<QItemDelegate*>();
for (int i = 0; i < delegates.count(); ++i)
{
if (delegates.at(i)->inherits("QComboBoxDelegate"))
{
combo->setItemDelegate(delegates.at(i));
/* we shouldn't delete the previous delegate here
because QComboBox::setItemDelegate() deletes it */
break;
}
}
}
}
else if (gtkDesktop_
&& (!w->parent() || !qobject_cast<QWidget*>(w->parent())
|| qobject_cast<QDialog*>(w) || qobject_cast<QMainWindow*>(w)))
{
setGtkVariant(w, tspec_.dark_titlebar);
}
break;
case QEvent::WindowActivate:
if (!tspec_.no_inactiveness && qobject_cast<QAbstractItemView*>(o))
{
QPalette palette = w->palette();
if (palette.color(QPalette::Active, QPalette::Text)
!= standardPalette().color(QPalette::Active, QPalette::Text))
{ // Custom text color; don't set palettes! The app is responsible for all colors.
break;
}
bool _forcePalette(false);
const label_spec lspec = getLabelSpec(QStringLiteral("ItemView"));
/* set the normal inactive text color to the normal active one
(needed when the app sets it inactive) */
QColor col = getFromRGBA(lspec.normalColor);
if (!col.isValid())
col = standardPalette().color(QPalette::Active,QPalette::Text);
if (palette.color(QPalette::Inactive, QPalette::Text) != col)
{
_forcePalette = true;
palette.setColor(QPalette::Inactive, QPalette::Text, col);
}
if (!hasInactiveSelItemCol_)
{
if (_forcePalette)
forcePalette(w, palette);
break;
}
/* set the toggled inactive text color to the toggled active one
(the main purpose of installing an event filter on the view) */
col = getFromRGBA(lspec.toggleColor);
if (palette.color(QPalette::Inactive, QPalette::HighlightedText) != col)
{
_forcePalette = true;
palette.setColor(QPalette::Inactive, QPalette::HighlightedText, col);
}
/* use the active highlight color for the toggled (unfocused) item if there's
no contrast with the pressed state because some apps (like Qt Designer)
may not call PE_PanelItemViewItem but highlight the item instead */
if (!toggledItemHasContrast_)
{
col = standardPalette().color(QPalette::Active,QPalette::Highlight);
if (palette.color(QPalette::Inactive, QPalette::Highlight) != col)
{
_forcePalette = true;
palette.setColor(QPalette::Inactive, QPalette::Highlight, col);
}
}
if (_forcePalette)
forcePalette(w, palette);
}
break;
case QEvent::WindowDeactivate:
if (!tspec_.no_inactiveness && qobject_cast<QAbstractItemView*>(o))
{
QPalette palette = w->palette();
if (palette.color(QPalette::Active, QPalette::Text)
!= standardPalette().color(QPalette::Active, QPalette::Text))
{
break;
}
bool _forcePalette(false);
const label_spec lspec = getLabelSpec(QStringLiteral("ItemView"));
/* restore the normal inactive text color (which was changed at QEvent::WindowActivate) */
QColor col = getFromRGBA(lspec.normalInactiveColor);
if (!col.isValid())
col = standardPalette().color(QPalette::Inactive,QPalette::Text);
if (palette.color(QPalette::Inactive, QPalette::Text) != col)
{
_forcePalette = true;
palette.setColor(QPalette::Inactive, QPalette::Text, col);
}
if (!hasInactiveSelItemCol_)
{ // custom text color
if (_forcePalette)
forcePalette(w, palette);
break;
}
/* restore the toggled inactive text color (which was changed at QEvent::WindowActivate) */
col = getFromRGBA(lspec.toggleInactiveColor);
if (palette.color(QPalette::Inactive,QPalette::HighlightedText) != col)
{
_forcePalette = true;
palette.setColor(QPalette::Inactive,QPalette::HighlightedText, col);
}
/* restore the inactive highlight color (which was changed at QEvent::WindowActivate) */
if (!toggledItemHasContrast_)
{
col = standardPalette().color(QPalette::Inactive,QPalette::Highlight);
if (palette.color(QPalette::Inactive, QPalette::Highlight) != col)
{
_forcePalette = true;
palette.setColor(QPalette::Inactive, QPalette::Highlight, col);
}
}
if (_forcePalette)
forcePalette(w, palette);
}
break;
case QEvent::Show:
if (w)
{
if (animatedWidget_ && (w->windowType() == Qt::Popup
|| w->windowType() == Qt::ToolTip))
{
popupOrigins_.insert(w, animatedWidget_);
connect(w, &QObject::destroyed, this, &Style::forgetPopupOrigin);
}
if (QMenu *menu = qobject_cast<QMenu*>(o))
{
//if (isLibreoffice_) break;
if (w->testAttribute(Qt::WA_X11NetWmWindowTypeMenu)) break; // detached menu
if (w->testAttribute(Qt::WA_StyleSheetTarget)) break; // not drawn by Kvantum (see PM_MenuHMargin)
#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
/*
This is a workaround for a fixed Qt5 bug (QTBUG-47043) that has reappeared
in Qt6 in another form but with almost the same result: _NET_WM_WINDOW_TYPE
is set to _NET_WM_WINDOW_TYPE_NORMAL for ordinary menus and combo popup menus.
"QXcbWindowFunctions::setWmWindowType()" doesn't exist in Qt6 but the window
type can be set by removing and resetting menu/combo attributes.
*/
if (tspec_.isX11 && !e->spontaneous() && w->windowHandle() != nullptr)
{
if (w->testAttribute(Qt::WA_X11NetWmWindowTypeDropDownMenu))
{
w->setAttribute(Qt::WA_X11NetWmWindowTypeDropDownMenu, false);
w->setAttribute(Qt::WA_X11NetWmWindowTypeDropDownMenu, true);
}
else if (w->testAttribute(Qt::WA_X11NetWmWindowTypePopupMenu))
{
w->setAttribute(Qt::WA_X11NetWmWindowTypePopupMenu, false);
w->setAttribute(Qt::WA_X11NetWmWindowTypePopupMenu, true);
}
}
#endif
if (movedMenus_.contains(w)) break; // already moved
/* "magical" condition for a submenu */
QPoint parentMenuCorner;
QMenu *parentMenu = qobject_cast<QMenu*>(QApplication::activePopupWidget());
/* this is a workaround for KDE global menu */
if (parentMenu && parentMenu->activeAction() == nullptr) parentMenu = nullptr;
if (parentMenu == nullptr)
{ // search for a detached menu with an active action
const QWidgetList topLevels = QApplication::topLevelWidgets();
for (QWidget *topWidget : topLevels)
{
if (topWidget->isVisible()
&& qobject_cast<QMenu*>(topWidget)
&& topWidget->testAttribute(Qt::WA_X11NetWmWindowTypeMenu)
&& qobject_cast<QMenu*>(topWidget)->activeAction())
{
parentMenu = qobject_cast<QMenu*>(topWidget);
parentMenuCorner = parentMenu->mapToGlobal(QPoint(0,0));
break;
}
}
}
else
parentMenuCorner = parentMenu->mapToGlobal(QPoint(0,0));
QMenuBar *parentMenubar = nullptr;
if (parentMenu == nullptr)