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kwin/effects/windowgeometry/windowgeometry.cpp
Vlad Zahorodnii 1fb9f6f13a Switch to SPDX license markers 
The main advantage of SPDX license identifiers over the traditional
license headers is that it's more difficult to overlook inappropriate
licenses for kwin, for example GPL 3. We also don't have to copy a
lot of boilerplate text.

In order to create this change, I ran licensedigger -r -c from the
toplevel source directory.
2020-08-07 19:57:56 +00:00

226 lines
8.5 KiB
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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2010 Thomas Lübking <thomas.luebking@web.de>
SPDX-License-Identifier: GPL-2.0-or-later
*********************************************************************/
#include "windowgeometry.h"
// KConfigSkeleton
#include "windowgeometryconfig.h"
#include <QAction>
#include <QLocale>
#include <QStringBuilder>
#include <kwinconfig.h>
#include <kconfiggroup.h>
#include <KGlobalAccel>
#include <KLocalizedString>
using namespace KWin;
WindowGeometry::WindowGeometry()
{
initConfig<WindowGeometryConfiguration>();
iAmActivated = true;
iAmActive = false;
myResizeWindow = nullptr;
#define myResizeString "Window geometry display, %1 and %2 are the new size," \
" %3 and %4 are pixel increments - avoid reformatting or suffixes like 'px'", \
"Width: %1 (%3)\nHeight: %2 (%4)"
#define myCoordString_0 "Window geometry display, %1 and %2 are the cartesian x and y coordinates" \
" - avoid reformatting or suffixes like 'px'", \
"X: %1\nY: %2"
#define myCoordString_1 "Window geometry display, %1 and %2 are the cartesian x and y coordinates," \
" %3 and %4 are the resp. increments - avoid reformatting or suffixes like 'px'", \
"X: %1 (%3)\nY: %2 (%4)"
reconfigure(ReconfigureAll);
QAction* a = new QAction(this);
a->setObjectName(QStringLiteral("WindowGeometry"));
a->setText(i18n("Toggle window geometry display (effect only)"));
KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << Qt::CTRL + Qt::SHIFT + Qt::Key_F11);
KGlobalAccel::self()->setShortcut(a, QList<QKeySequence>() << Qt::CTRL + Qt::SHIFT + Qt::Key_F11);
effects->registerGlobalShortcut(Qt::CTRL + Qt::SHIFT + Qt::Key_F11, a);
connect(a, &QAction::triggered, this, &WindowGeometry::toggle);
connect(effects, &EffectsHandler::windowStartUserMovedResized, this, &WindowGeometry::slotWindowStartUserMovedResized);
connect(effects, &EffectsHandler::windowFinishUserMovedResized, this, &WindowGeometry::slotWindowFinishUserMovedResized);
connect(effects, &EffectsHandler::windowStepUserMovedResized, this, &WindowGeometry::slotWindowStepUserMovedResized);
}
WindowGeometry::~WindowGeometry()
{
for (int i = 0; i < 3; ++i)
delete myMeasure[i];
}
void WindowGeometry::createFrames()
{
if (myMeasure[0]) {
return;
}
QFont fnt; fnt.setBold(true); fnt.setPointSize(12);
for (int i = 0; i < 3; ++i) {
myMeasure[i] = effects->effectFrame(EffectFrameUnstyled, false);
myMeasure[i]->setFont(fnt);
}
myMeasure[0]->setAlignment(Qt::AlignLeft | Qt::AlignTop);
myMeasure[1]->setAlignment(Qt::AlignCenter);
myMeasure[2]->setAlignment(Qt::AlignRight | Qt::AlignBottom);
}
void WindowGeometry::reconfigure(ReconfigureFlags)
{
WindowGeometryConfiguration::self()->read();
iHandleMoves = WindowGeometryConfiguration::move();
iHandleResizes = WindowGeometryConfiguration::resize();
}
void WindowGeometry::paintScreen(int mask, const QRegion &region, ScreenPaintData &data)
{
effects->paintScreen(mask, region, data);
if (iAmActivated && iAmActive) {
for (int i = 0; i < 3; ++i)
myMeasure[i]->render(infiniteRegion(), 1.0, .66);
}
}
void WindowGeometry::toggle()
{
iAmActivated = !iAmActivated;
createFrames();
}
void WindowGeometry::slotWindowStartUserMovedResized(EffectWindow *w)
{
if (!iAmActivated)
return;
if (w->isUserResize() && !iHandleResizes)
return;
if (w->isUserMove() && !iHandleMoves)
return;
createFrames();
iAmActive = true;
myResizeWindow = w;
myOriginalGeometry = w->geometry();
myCurrentGeometry = w->geometry();
slotWindowStepUserMovedResized(w, w->geometry());
}
void WindowGeometry::slotWindowFinishUserMovedResized(EffectWindow *w)
{
if (iAmActive && w == myResizeWindow) {
iAmActive = false;
myResizeWindow = nullptr;
w->addRepaintFull();
if (myExtraDirtyArea.isValid())
w->addLayerRepaint(myExtraDirtyArea);
myExtraDirtyArea = QRect();
}
}
static inline QString number(int n)
{
QLocale locale;
QString sign;
if (n >= 0) {
sign = locale.positiveSign();
if (sign.isEmpty()) sign = QStringLiteral("+");
}
else {
n = -n;
sign = locale.negativeSign();
if (sign.isEmpty()) sign = QStringLiteral("-");
}
return sign + QString::number(n);
}
void WindowGeometry::slotWindowStepUserMovedResized(EffectWindow *w, const QRect &geometry)
{
if (iAmActivated && iAmActive && w == myResizeWindow) {
if (myExtraDirtyArea.isValid())
effects->addRepaint(myExtraDirtyArea);
myExtraDirtyArea = QRect();
myCurrentGeometry = geometry;
QPoint center = geometry.center();
const QRect &r = geometry;
const QRect &r2 = myOriginalGeometry;
const QRect screen = effects->clientArea(ScreenArea, w);
QRect expandedGeometry = w->expandedGeometry();
expandedGeometry = geometry.adjusted(expandedGeometry.x() - w->x(),
expandedGeometry.y() - w->y(),
expandedGeometry.right() - w->geometry().right(),
expandedGeometry.bottom() - w->geometry().bottom());
// sufficient for moves, resizes calculated otherwise
int dx = r.x() - r2.x();
int dy = r.y() - r2.y();
// upper left ----------------------
if (w->isUserResize())
myMeasure[0]->setText( i18nc(myCoordString_1, r.x(), r.y(), number(dx), number(dy) ) );
else
myMeasure[0]->setText( i18nc(myCoordString_0, r.x(), r.y() ) );
QPoint pos = expandedGeometry.topLeft();
pos = QPoint(qMax(pos.x(), screen.x()), qMax(pos.y(), screen.y()));
myMeasure[0]->setPosition(pos + QPoint(6,6)); // "6" is magic number because the unstyled effectframe has 5px padding
// center ----------------------
if (w->isUserResize()) {
// calc width for center element, otherwise the current dx/dx remains right
dx = r.width() - r2.width();
dy = r.height() - r2.height();
const QSize baseInc = w->basicUnit();
if (baseInc != QSize(1,1)) {
Q_ASSERT(baseInc.width() && baseInc.height());
const QSize csz = w->contentsRect().size();
myMeasure[1]->setText( i18nc(myResizeString, csz.width()/baseInc.width(), csz.height()/baseInc.height(), number(dx/baseInc.width()), number(dy/baseInc.height()) ) );
} else
myMeasure[1]->setText( i18nc(myResizeString, r.width(), r.height(), number(dx), number(dy) ) );
// calc width for bottomright element, superfluous otherwise
dx = r.right() - r2.right();
dy = r.bottom() - r2.bottom();
} else
myMeasure[1]->setText( i18nc(myCoordString_0, number(dx), number(dy) ) );
const int cdx = myMeasure[1]->geometry().width() / 2 + 3; // "3" = 6/2 is magic number because
const int cdy = myMeasure[1]->geometry().height() / 2 + 3; // the unstyled effectframe has 5px padding
center = QPoint(qMax(center.x(), screen.x() + cdx),
qMax(center.y(), screen.y() + cdy));
center = QPoint(qMin(center.x(), screen.right() - cdx),
qMin(center.y(), screen.bottom() - cdy));
myMeasure[1]->setPosition(center);
// lower right ----------------------
if (w->isUserResize())
myMeasure[2]->setText( i18nc(myCoordString_1, r.right(), r.bottom(), number(dx), number(dy) ) );
else
myMeasure[2]->setText( i18nc(myCoordString_0, r.right(), r.bottom() ) );
pos = expandedGeometry.bottomRight();
pos = QPoint(qMin(pos.x(), screen.right()), qMin(pos.y(), screen.bottom()));
myMeasure[2]->setPosition(pos - QPoint(6,6)); // "6" is magic number because the unstyled effectframe has 5px padding
myExtraDirtyArea |= myMeasure[0]->geometry();
myExtraDirtyArea |= myMeasure[1]->geometry();
myExtraDirtyArea |= myMeasure[2]->geometry();
myExtraDirtyArea.adjust(-6,-6,6,6);
if (myExtraDirtyArea.isValid())
effects->addRepaint(myExtraDirtyArea);
}
}
bool WindowGeometry::isActive() const
{
return iAmActive;
}
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