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kwin/src/placement.cpp
Arjen Hiemstra 817d13d8c0 Ensure move() calls in placement move in integer values 
Otherwise we run the risk of placing windows at floating coodinates,
which leads to interpolated rendering which doesn't look nice.

BUG: 457143
2022-09-14 09:00:47 +00:00

979 lines
32 KiB
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/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 1999, 2000 Matthias Ettrich <ettrich@kde.org>
SPDX-FileCopyrightText: 1997-2002 Cristian Tibirna <tibirna@kde.org>
SPDX-FileCopyrightText: 2003 Lubos Lunak <l.lunak@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "placement.h"
#ifndef KCMRULES
#include "cursor.h"
#include "options.h"
#include "rules.h"
#include "virtualdesktops.h"
#include "workspace.h"
#include "x11window.h"
#endif
#include <QTextStream>
#include <QTimer>
namespace KWin
{
#ifndef KCMRULES
Placement::Placement()
{
reinitCascading(0);
}
/**
* Places the client \a c according to the workspace's layout policy
*/
void Placement::place(Window *c, const QRectF &area)
{
PlacementPolicy policy = c->rules()->checkPlacement(PlacementDefault);
if (policy != PlacementDefault) {
place(c, area, policy);
return;
}
if (c->isUtility()) {
placeUtility(c, area.toRect(), options->placement());
} else if (c->isDialog()) {
placeDialog(c, area.toRect(), options->placement());
} else if (c->isSplash()) {
placeOnMainWindow(c, area.toRect()); // on mainwindow, if any, otherwise centered
} else if (c->isOnScreenDisplay() || c->isNotification() || c->isCriticalNotification()) {
placeOnScreenDisplay(c, area.toRect());
} else if (c->isTransient() && c->hasTransientPlacementHint()) {
placeTransient(c);
} else if (c->isTransient() && c->surface()) {
placeDialog(c, area.toRect(), options->placement());
} else {
place(c, area, options->placement());
}
}
void Placement::place(Window *c, const QRectF &area, PlacementPolicy policy, PlacementPolicy nextPlacement)
{
if (policy == PlacementUnknown || policy == PlacementDefault) {
policy = options->placement();
}
switch (policy) {
case PlacementNone:
return;
case PlacementRandom:
placeAtRandom(c, area.toRect(), nextPlacement);
break;
case PlacementCascade:
placeCascaded(c, area.toRect(), nextPlacement);
break;
case PlacementCentered:
placeCentered(c, area, nextPlacement);
break;
case PlacementZeroCornered:
placeZeroCornered(c, area.toRect(), nextPlacement);
break;
case PlacementUnderMouse:
placeUnderMouse(c, area.toRect(), nextPlacement);
break;
case PlacementOnMainWindow:
placeOnMainWindow(c, area.toRect(), nextPlacement);
break;
case PlacementMaximizing:
placeMaximizing(c, area.toRect(), nextPlacement);
break;
default:
placeSmart(c, area, nextPlacement);
}
}
/**
* Place the client \a c according to a simply "random" placement algorithm.
*/
void Placement::placeAtRandom(Window *c, const QRect &area, PlacementPolicy /*next*/)
{
Q_ASSERT(area.isValid());
const int step = 24;
static int px = step;
static int py = 2 * step;
int tx, ty;
if (px < area.x()) {
px = area.x();
}
if (py < area.y()) {
py = area.y();
}
px += step;
py += 2 * step;
if (px > area.width() / 2) {
px = area.x() + step;
}
if (py > area.height() / 2) {
py = area.y() + step;
}
tx = px;
ty = py;
if (tx + c->width() > area.right()) {
tx = area.right() - c->width();
if (tx < 0) {
tx = 0;
}
px = area.x();
}
if (ty + c->height() > area.bottom()) {
ty = area.bottom() - c->height();
if (ty < 0) {
ty = 0;
}
py = area.y();
}
c->move(QPoint(tx, ty));
}
// TODO: one day, there'll be C++11 ...
static inline bool isIrrelevant(const Window *client, const Window *regarding, int desktop)
{
if (!client->isClient()) {
return true;
}
if (client == regarding) {
return true;
}
if (!client->isShown() || client->isShade()) {
return true;
}
if (!client->isOnDesktop(desktop)) {
return true;
}
if (!client->isOnCurrentActivity()) {
return true;
}
if (client->isDesktop()) {
return true;
}
return false;
}
/**
* Place the client \a c according to a really smart placement algorithm :-)
*/
void Placement::placeSmart(Window *c, const QRectF &area, PlacementPolicy /*next*/)
{
Q_ASSERT(area.isValid());
/*
* SmartPlacement by Cristian Tibirna (tibirna@kde.org)
* adapted for kwm (16-19jan98) and for kwin (16Nov1999) using (with
* permission) ideas from fvwm, authored by
* Anthony Martin (amartin@engr.csulb.edu).
* Xinerama supported added by Balaji Ramani (balaji@yablibli.com)
* with ideas from xfce.
*/
if (!c->frameGeometry().isValid()) {
return;
}
const int none = 0, h_wrong = -1, w_wrong = -2; // overlap types
long int overlap, min_overlap = 0;
int x_optimal, y_optimal;
int possible;
int desktop = c->desktop() == 0 || c->isOnAllDesktops() ? VirtualDesktopManager::self()->current() : c->desktop();
int cxl, cxr, cyt, cyb; // temp coords
int xl, xr, yt, yb; // temp coords
int basket; // temp holder
// get the maximum allowed windows space
int x = area.left();
int y = area.top();
x_optimal = x;
y_optimal = y;
// client gabarit
int ch = c->height() - 1;
int cw = c->width() - 1;
bool first_pass = true; // CT lame flag. Don't like it. What else would do?
// loop over possible positions
do {
// test if enough room in x and y directions
if (y + ch > area.bottom() && ch < area.height()) {
overlap = h_wrong; // this throws the algorithm to an exit
} else if (x + cw > area.right()) {
overlap = w_wrong;
} else {
overlap = none; // initialize
cxl = x;
cxr = x + cw;
cyt = y;
cyb = y + ch;
for (auto l = workspace()->stackingOrder().constBegin(); l != workspace()->stackingOrder().constEnd(); ++l) {
auto client = *l;
if (isIrrelevant(client, c, desktop)) {
continue;
}
xl = client->x();
yt = client->y();
xr = xl + client->width();
yb = yt + client->height();
// if windows overlap, calc the overall overlapping
if ((cxl < xr) && (cxr > xl) && (cyt < yb) && (cyb > yt)) {
xl = qMax(cxl, xl);
xr = qMin(cxr, xr);
yt = qMax(cyt, yt);
yb = qMin(cyb, yb);
if (client->keepAbove()) {
overlap += 16 * (xr - xl) * (yb - yt);
} else if (client->keepBelow() && !client->isDock()) { // ignore KeepBelow windows
overlap += 0; // for placement (see X11Window::belongsToLayer() for Dock)
} else {
overlap += (xr - xl) * (yb - yt);
}
}
}
}
// CT first time we get no overlap we stop.
if (overlap == none) {
x_optimal = x;
y_optimal = y;
break;
}
if (first_pass) {
first_pass = false;
min_overlap = overlap;
}
// CT save the best position and the minimum overlap up to now
else if (overlap >= none && overlap < min_overlap) {
min_overlap = overlap;
x_optimal = x;
y_optimal = y;
}
// really need to loop? test if there's any overlap
if (overlap > none) {
possible = area.right();
if (possible - cw > x) {
possible -= cw;
}
// compare to the position of each client on the same desk
for (auto l = workspace()->stackingOrder().constBegin(); l != workspace()->stackingOrder().constEnd(); ++l) {
auto client = *l;
if (isIrrelevant(client, c, desktop)) {
continue;
}
xl = client->x();
yt = client->y();
xr = xl + client->width();
yb = yt + client->height();
// if not enough room above or under the current tested client
// determine the first non-overlapped x position
if ((y < yb) && (yt < ch + y)) {
if ((xr > x) && (possible > xr)) {
possible = xr;
}
basket = xl - cw;
if ((basket > x) && (possible > basket)) {
possible = basket;
}
}
}
x = possible;
}
// ... else ==> not enough x dimension (overlap was wrong on horizontal)
else if (overlap == w_wrong) {
x = area.left();
possible = area.bottom();
if (possible - ch > y) {
possible -= ch;
}
// test the position of each window on the desk
for (auto l = workspace()->stackingOrder().constBegin(); l != workspace()->stackingOrder().constEnd(); ++l) {
auto client = *l;
if (isIrrelevant(client, c, desktop)) {
continue;
}
xl = client->x();
yt = client->y();
xr = xl + client->width();
yb = yt + client->height();
// if not enough room to the left or right of the current tested client
// determine the first non-overlapped y position
if ((yb > y) && (possible > yb)) {
possible = yb;
}
basket = yt - ch;
if ((basket > y) && (possible > basket)) {
possible = basket;
}
}
y = possible;
}
} while ((overlap != none) && (overlap != h_wrong) && (y < area.bottom()));
if (ch >= area.height()) {
y_optimal = area.top();
}
// place the window
c->move(QPoint(x_optimal, y_optimal));
}
void Placement::reinitCascading(int desktop)
{
// desktop == 0 - reinit all
if (desktop == 0) {
cci.clear();
for (uint i = 0; i < VirtualDesktopManager::self()->count(); ++i) {
DesktopCascadingInfo inf;
inf.pos = QPoint(-1, -1);
inf.col = 0;
inf.row = 0;
cci.append(inf);
}
} else {
cci[desktop - 1].pos = QPoint(-1, -1);
cci[desktop - 1].col = cci[desktop - 1].row = 0;
}
}
QPoint Workspace::cascadeOffset(const Window *c) const
{
QRect area = clientArea(PlacementArea, c, c->frameGeometry().center()).toRect();
return QPoint(area.width() / 48, area.height() / 48);
}
/**
* Place windows in a cascading order, remembering positions for each desktop
*/
void Placement::placeCascaded(Window *c, const QRect &area, PlacementPolicy nextPlacement)
{
Q_ASSERT(area.isValid());
if (!c->frameGeometry().isValid()) {
return;
}
/* cascadePlacement by Cristian Tibirna (tibirna@kde.org) (30Jan98)
*/
// work coords
int xp, yp;
// CT how do I get from the 'Client' class the size that NW squarish "handle"
const QPoint delta = workspace()->cascadeOffset(c);
const int dn = c->desktop() == 0 || c->isOnAllDesktops() ? (VirtualDesktopManager::self()->current() - 1) : (c->desktop() - 1);
// initialize often used vars: width and height of c; we gain speed
const int ch = c->height();
const int cw = c->width();
const int X = area.left();
const int Y = area.top();
const int H = area.height();
const int W = area.width();
if (nextPlacement == PlacementUnknown) {
nextPlacement = PlacementSmart;
}
// initialize if needed
if (cci[dn].pos.x() < 0 || cci[dn].pos.x() < X || cci[dn].pos.y() < Y) {
cci[dn].pos = QPoint(X, Y);
cci[dn].col = cci[dn].row = 0;
}
xp = cci[dn].pos.x();
yp = cci[dn].pos.y();
// here to touch in case people vote for resize on placement
if ((yp + ch) > H) {
yp = Y;
}
if ((xp + cw) > W) {
if (!yp) {
place(c, area, nextPlacement);
return;
} else {
xp = X;
}
}
// if this isn't the first window
if (cci[dn].pos.x() != X && cci[dn].pos.y() != Y) {
/* The following statements cause an internal compiler error with
* egcs-2.91.66 on SuSE Linux 6.3. The equivalent forms compile fine.
* 22-Dec-1999 CS
*
* if (xp != X && yp == Y) xp = delta.x() * (++(cci[dn].col));
* if (yp != Y && xp == X) yp = delta.y() * (++(cci[dn].row));
*/
if (xp != X && yp == Y) {
++(cci[dn].col);
xp = delta.x() * cci[dn].col;
}
if (yp != Y && xp == X) {
++(cci[dn].row);
yp = delta.y() * cci[dn].row;
}
// last resort: if still doesn't fit, smart place it
if (((xp + cw) > W - X) || ((yp + ch) > H - Y)) {
place(c, area, nextPlacement);
return;
}
}
// place the window
c->move(QPoint(xp, yp));
// new position
cci[dn].pos = QPoint(xp + delta.x(), yp + delta.y());
}
/**
* Place windows centered, on top of all others
*/
void Placement::placeCentered(Window *c, const QRectF &area, PlacementPolicy /*next*/)
{
Q_ASSERT(area.isValid());
if (!c->frameGeometry().isValid()) {
return;
}
const int xp = area.left() + (area.width() - c->width()) / 2;
const int yp = area.top() + (area.height() - c->height()) / 2;
// place the window
c->move(QPoint(xp, yp));
}
/**
* Place windows in the (0,0) corner, on top of all others
*/
void Placement::placeZeroCornered(Window *c, const QRect &area, PlacementPolicy /*next*/)
{
Q_ASSERT(area.isValid());
// get the maximum allowed windows space and desk's origin
c->move(area.topLeft());
}
void Placement::placeUtility(Window *c, const QRect &area, PlacementPolicy /*next*/)
{
// TODO kwin should try to place utility windows next to their mainwindow,
// preferably at the right edge, and going down if there are more of them
// if there's not enough place outside the mainwindow, it should prefer
// top-right corner
// use the default placement for now
place(c, area, PlacementDefault);
}
void Placement::placeOnScreenDisplay(Window *c, const QRect &area)
{
Q_ASSERT(area.isValid());
// place at lower area of the screen
const int x = area.left() + (area.width() - c->width()) / 2;
const int y = area.top() + 2 * area.height() / 3 - c->height() / 2;
c->move(QPoint(x, y));
}
void Placement::placeTransient(Window *c)
{
const auto parent = c->transientFor();
const QRectF screen = Workspace::self()->clientArea(parent->isFullScreen() ? FullScreenArea : PlacementArea, parent);
c->moveResize(c->transientPlacement(screen));
// Potentially a client could set no constraint adjustments
// and we'll be offscreen.
// The spec implies we should place window the offscreen. However,
// practically Qt doesn't set any constraint adjustments yet so we can't.
// Also kwin generally doesn't let clients do what they want
if (!screen.contains(c->moveResizeGeometry().toAlignedRect())) {
c->keepInArea(screen);
}
}
void Placement::placeDialog(Window *c, const QRect &area, PlacementPolicy nextPlacement)
{
placeOnMainWindow(c, area, nextPlacement);
}
void Placement::placeUnderMouse(Window *c, const QRect &area, PlacementPolicy /*next*/)
{
Q_ASSERT(area.isValid());
QRectF geom = c->frameGeometry();
geom.moveCenter(Cursors::self()->mouse()->pos());
c->move(geom.topLeft().toPoint());
c->keepInArea(area); // make sure it's kept inside workarea
}
void Placement::placeOnMainWindow(Window *c, const QRect &area, PlacementPolicy nextPlacement)
{
Q_ASSERT(area.isValid());
if (nextPlacement == PlacementUnknown) {
nextPlacement = PlacementCentered;
}
if (nextPlacement == PlacementMaximizing) { // maximize if needed
placeMaximizing(c, area, PlacementNone);
}
auto mainwindows = c->mainWindows();
Window *place_on = nullptr;
Window *place_on2 = nullptr;
int mains_count = 0;
for (auto it = mainwindows.constBegin(); it != mainwindows.constEnd(); ++it) {
if (mainwindows.count() > 1 && (*it)->isSpecialWindow()) {
continue; // don't consider toolbars etc when placing
}
++mains_count;
place_on2 = *it;
if ((*it)->isOnCurrentDesktop()) {
if (place_on == nullptr) {
place_on = *it;
} else {
// two or more on current desktop -> center
// That's the default at least. However, with maximizing placement
// policy as the default, the dialog should be either maximized or
// made as large as its maximum size and then placed centered.
// So the nextPlacement argument allows chaining. In this case, nextPlacement
// is Maximizing and it will call placeCentered().
place(c, area, PlacementCentered);
return;
}
}
}
if (place_on == nullptr) {
// 'mains_count' is used because it doesn't include ignored mainwindows
if (mains_count != 1) {
place(c, area, PlacementCentered);
return;
}
place_on = place_on2; // use the only window filtered together with 'mains_count'
}
if (place_on->isDesktop()) {
place(c, area, PlacementCentered);
return;
}
QRect geom = c->frameGeometry().toRect();
geom.moveCenter(place_on->frameGeometry().center().toPoint());
c->move(geom.topLeft());
// get area again, because the mainwindow may be on different xinerama screen
const QRect placementArea = workspace()->clientArea(PlacementArea, c).toRect();
c->keepInArea(placementArea); // make sure it's kept inside workarea
}
void Placement::placeMaximizing(Window *c, const QRect &area, PlacementPolicy nextPlacement)
{
Q_ASSERT(area.isValid());
if (nextPlacement == PlacementUnknown) {
nextPlacement = PlacementSmart;
}
if (c->isMaximizable() && c->maxSize().width() >= area.width() && c->maxSize().height() >= area.height()) {
if (workspace()->clientArea(MaximizeArea, c) == area) {
c->maximize(MaximizeFull);
} else { // if the geometry doesn't match default maximize area (xinerama case?),
// it's probably better to use the given area
c->moveResize(area);
}
} else {
c->moveResize(c->resizeWithChecks(c->moveResizeGeometry(), c->maxSize().boundedTo(area.size())));
place(c, area, nextPlacement);
}
}
void Placement::cascadeDesktop()
{
Workspace *ws = Workspace::self();
const int desktop = VirtualDesktopManager::self()->current();
reinitCascading(desktop);
const auto stackingOrder = ws->stackingOrder();
for (Window *window : stackingOrder) {
if (!window->isClient() || (!window->isOnCurrentDesktop()) || (window->isMinimized()) || (window->isOnAllDesktops()) || (!window->isMovable())) {
continue;
}
const QRect placementArea = workspace()->clientArea(PlacementArea, window).toRect();
placeCascaded(window, placementArea);
}
}
void Placement::unclutterDesktop()
{
const auto &clients = Workspace::self()->allClientList();
for (int i = clients.size() - 1; i >= 0; i--) {
auto client = clients.at(i);
if ((!client->isOnCurrentDesktop()) || (client->isMinimized()) || (client->isOnAllDesktops()) || (!client->isMovable())) {
continue;
}
const QRect placementArea = workspace()->clientArea(PlacementArea, client).toRect();
placeSmart(client, placementArea);
}
}
#endif
const char *Placement::policyToString(PlacementPolicy policy)
{
const char *const policies[] = {
"NoPlacement", "Default", "XXX should never see", "Random", "Smart", "Cascade", "Centered",
"ZeroCornered", "UnderMouse", "OnMainWindow", "Maximizing"};
Q_ASSERT(policy < int(sizeof(policies) / sizeof(policies[0])));
return policies[policy];
}
#ifndef KCMRULES
// ********************
// Workspace
// ********************
void Window::packTo(qreal left, qreal top)
{
workspace()->updateFocusMousePosition(Cursors::self()->mouse()->pos()); // may cause leave event;
const Output *oldOutput = moveResizeOutput();
move(QPoint(left, top));
if (moveResizeOutput() != oldOutput) {
workspace()->sendWindowToOutput(this, moveResizeOutput()); // checks rule validity
if (requestedMaximizeMode() != MaximizeRestore) {
checkWorkspacePosition();
}
}
}
/**
* Moves active window left until in bumps into another window or workarea edge.
*/
void Workspace::slotWindowMoveLeft()
{
if (m_activeWindow && m_activeWindow->isMovable()) {
const QRectF geometry = m_activeWindow->moveResizeGeometry();
m_activeWindow->packTo(packPositionLeft(m_activeWindow, geometry.left(), true),
geometry.y());
}
}
void Workspace::slotWindowMoveRight()
{
if (m_activeWindow && m_activeWindow->isMovable()) {
const QRectF geometry = m_activeWindow->moveResizeGeometry();
m_activeWindow->packTo(packPositionRight(m_activeWindow, geometry.right(), true) - geometry.width(),
geometry.y());
}
}
void Workspace::slotWindowMoveUp()
{
if (m_activeWindow && m_activeWindow->isMovable()) {
const QRectF geometry = m_activeWindow->moveResizeGeometry();
m_activeWindow->packTo(geometry.x(),
packPositionUp(m_activeWindow, geometry.top(), true));
}
}
void Workspace::slotWindowMoveDown()
{
if (m_activeWindow && m_activeWindow->isMovable()) {
const QRectF geometry = m_activeWindow->moveResizeGeometry();
m_activeWindow->packTo(geometry.x(),
packPositionDown(m_activeWindow, geometry.bottom(), true) - geometry.height());
}
}
/** Moves the active window to the center of the screen. */
void Workspace::slotWindowCenter()
{
if (m_activeWindow && m_activeWindow->isMovable()) {
const QRectF geometry = m_activeWindow->moveResizeGeometry();
QPointF center = clientArea(MaximizeArea, m_activeWindow).center();
m_activeWindow->packTo(center.x() - (geometry.width() / 2),
center.y() - (geometry.height() / 2));
}
}
void Workspace::slotWindowExpandHorizontal()
{
if (m_activeWindow) {
m_activeWindow->growHorizontal();
}
}
void Window::growHorizontal()
{
if (!isResizable() || isShade()) {
return;
}
QRectF geom = moveResizeGeometry();
geom.setRight(workspace()->packPositionRight(this, geom.right(), true));
QSizeF adjsize = constrainFrameSize(geom.size(), SizeModeFixedW);
if (moveResizeGeometry().size() == adjsize && geom.size() != adjsize && resizeIncrements().width() > 1) { // take care of size increments
qreal newright = workspace()->packPositionRight(this, geom.right() + resizeIncrements().width() - 1, true);
// check that it hasn't grown outside of the area, due to size increments
// TODO this may be wrong?
if (workspace()->clientArea(MovementArea,
this,
QPoint((x() + newright) / 2, moveResizeGeometry().center().y()))
.right()
>= newright) {
geom.setRight(newright);
}
}
geom.setSize(constrainFrameSize(geom.size(), SizeModeFixedW));
geom.setSize(constrainFrameSize(geom.size(), SizeModeFixedH));
workspace()->updateFocusMousePosition(Cursors::self()->mouse()->pos()); // may cause leave event;
moveResize(geom);
}
void Workspace::slotWindowShrinkHorizontal()
{
if (m_activeWindow) {
m_activeWindow->shrinkHorizontal();
}
}
void Window::shrinkHorizontal()
{
if (!isResizable() || isShade()) {
return;
}
QRectF geom = moveResizeGeometry();
geom.setRight(workspace()->packPositionLeft(this, geom.right(), false) + 1);
if (geom.width() <= 1) {
return;
}
geom.setSize(constrainFrameSize(geom.size(), SizeModeFixedW));
if (geom.width() > 20) {
workspace()->updateFocusMousePosition(Cursors::self()->mouse()->pos()); // may cause leave event;
moveResize(geom);
}
}
void Workspace::slotWindowExpandVertical()
{
if (m_activeWindow) {
m_activeWindow->growVertical();
}
}
void Window::growVertical()
{
if (!isResizable() || isShade()) {
return;
}
QRectF geom = moveResizeGeometry();
geom.setBottom(workspace()->packPositionDown(this, geom.bottom(), true));
QSizeF adjsize = constrainFrameSize(geom.size(), SizeModeFixedH);
if (moveResizeGeometry().size() == adjsize && geom.size() != adjsize && resizeIncrements().height() > 1) { // take care of size increments
qreal newbottom = workspace()->packPositionDown(this, geom.bottom() + resizeIncrements().height(), true);
// check that it hasn't grown outside of the area, due to size increments
if (workspace()->clientArea(MovementArea,
this,
QPoint(moveResizeGeometry().center().x(), (y() + newbottom) / 2))
.bottom()
>= newbottom) {
geom.setBottom(newbottom);
}
}
geom.setSize(constrainFrameSize(geom.size(), SizeModeFixedH));
workspace()->updateFocusMousePosition(Cursors::self()->mouse()->pos()); // may cause leave event;
moveResize(geom);
}
void Workspace::slotWindowShrinkVertical()
{
if (m_activeWindow) {
m_activeWindow->shrinkVertical();
}
}
void Window::shrinkVertical()
{
if (!isResizable() || isShade()) {
return;
}
QRectF geom = moveResizeGeometry();
geom.setBottom(workspace()->packPositionUp(this, geom.bottom(), false) + 1);
if (geom.height() <= 1) {
return;
}
geom.setSize(constrainFrameSize(geom.size(), SizeModeFixedH));
if (geom.height() > 20) {
workspace()->updateFocusMousePosition(Cursors::self()->mouse()->pos()); // may cause leave event;
moveResize(geom);
}
}
void Workspace::quickTileWindow(QuickTileMode mode)
{
if (!m_activeWindow) {
return;
}
// If the user invokes two of these commands in a one second period, try to
// combine them together to enable easy and intuitive corner tiling
#define FLAG(name) QuickTileMode(QuickTileFlag::name)
if (!m_quickTileCombineTimer->isActive()) {
m_quickTileCombineTimer->start(1000);
m_lastTilingMode = mode;
} else {
if (
((m_lastTilingMode == FLAG(Left) || m_lastTilingMode == FLAG(Right)) && (mode == FLAG(Top) || mode == FLAG(Bottom)))
|| ((m_lastTilingMode == FLAG(Top) || m_lastTilingMode == FLAG(Bottom)) && (mode == FLAG(Left) || mode == FLAG(Right)))
#undef FLAG
) {
mode |= m_lastTilingMode;
}
m_quickTileCombineTimer->stop();
}
m_activeWindow->setQuickTileMode(mode, true);
}
qreal Workspace::packPositionLeft(const Window *client, qreal oldX, bool leftEdge) const
{
qreal newX = clientArea(MaximizeArea, client).left();
if (oldX <= newX) { // try another Xinerama screen
newX = clientArea(MaximizeArea,
client,
QPointF(client->frameGeometry().left() - 1, client->frameGeometry().center().y()))
.left();
}
if (oldX <= newX) {
return oldX;
}
const int desktop = client->desktop() == 0 || client->isOnAllDesktops() ? VirtualDesktopManager::self()->current() : client->desktop();
for (auto it = m_allClients.constBegin(), end = m_allClients.constEnd(); it != end; ++it) {
if (isIrrelevant(*it, client, desktop)) {
continue;
}
const qreal x = leftEdge ? (*it)->frameGeometry().right() : (*it)->frameGeometry().left() - 1;
if (x > newX && x < oldX
&& !(client->frameGeometry().top() > (*it)->frameGeometry().bottom() - 1 // they overlap in Y direction
|| client->frameGeometry().bottom() - 1 < (*it)->frameGeometry().top())) {
newX = x;
}
}
return newX;
}
qreal Workspace::packPositionRight(const Window *client, qreal oldX, bool rightEdge) const
{
qreal newX = clientArea(MaximizeArea, client).right();
if (oldX >= newX) { // try another Xinerama screen
newX = clientArea(MaximizeArea,
client,
QPointF(client->frameGeometry().right(), client->frameGeometry().center().y()))
.right();
}
if (oldX >= newX) {
return oldX;
}
const int desktop = client->desktop() == 0 || client->isOnAllDesktops() ? VirtualDesktopManager::self()->current() : client->desktop();
for (auto it = m_allClients.constBegin(), end = m_allClients.constEnd(); it != end; ++it) {
if (isIrrelevant(*it, client, desktop)) {
continue;
}
const qreal x = rightEdge ? (*it)->frameGeometry().left() : (*it)->frameGeometry().right() + 1;
if (x < newX && x > oldX
&& !(client->frameGeometry().top() > (*it)->frameGeometry().bottom() - 1
|| client->frameGeometry().bottom() - 1 < (*it)->frameGeometry().top())) {
newX = x;
}
}
return newX;
}
qreal Workspace::packPositionUp(const Window *client, qreal oldY, bool topEdge) const
{
qreal newY = clientArea(MaximizeArea, client).top();
if (oldY <= newY) { // try another Xinerama screen
newY = clientArea(MaximizeArea,
client,
QPointF(client->frameGeometry().center().x(), client->frameGeometry().top() - 1))
.top();
}
if (oldY <= newY) {
return oldY;
}
const int desktop = client->desktop() == 0 || client->isOnAllDesktops() ? VirtualDesktopManager::self()->current() : client->desktop();
for (auto it = m_allClients.constBegin(), end = m_allClients.constEnd(); it != end; ++it) {
if (isIrrelevant(*it, client, desktop)) {
continue;
}
const qreal y = topEdge ? (*it)->frameGeometry().bottom() : (*it)->frameGeometry().top() - 1;
if (y > newY && y < oldY
&& !(client->frameGeometry().left() > (*it)->frameGeometry().right() - 1 // they overlap in X direction
|| client->frameGeometry().right() - 1 < (*it)->frameGeometry().left())) {
newY = y;
}
}
return newY;
}
qreal Workspace::packPositionDown(const Window *client, qreal oldY, bool bottomEdge) const
{
qreal newY = clientArea(MaximizeArea, client).bottom();
if (oldY >= newY) { // try another Xinerama screen
newY = clientArea(MaximizeArea,
client,
QPointF(client->frameGeometry().center().x(), client->frameGeometry().bottom()))
.bottom();
}
if (oldY >= newY) {
return oldY;
}
const int desktop = client->desktop() == 0 || client->isOnAllDesktops() ? VirtualDesktopManager::self()->current() : client->desktop();
for (auto it = m_allClients.constBegin(), end = m_allClients.constEnd(); it != end; ++it) {
if (isIrrelevant(*it, client, desktop)) {
continue;
}
const qreal y = bottomEdge ? (*it)->frameGeometry().top() : (*it)->frameGeometry().bottom() + 1;
if (y < newY && y > oldY
&& !(client->frameGeometry().left() > (*it)->frameGeometry().right() - 1
|| client->frameGeometry().right() - 1 < (*it)->frameGeometry().left())) {
newY = y;
}
}
return newY;
}
#endif
} // namespace
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