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geometry.cpp
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geometry.cpp
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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.com>
This program 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 2 of the License, or
(at your option) any later version.
This program 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/>.
*********************************************************************/
/*
This file contains things relevant to geometry, i.e. workspace size,
window positions and window sizes.
*/
#include "client.h"
#include "composite.h"
#include "cursor.h"
#include "netinfo.h"
#include "workspace.h"
#include "placement.h"
#include "geometrytip.h"
#include "rules.h"
#include "screens.h"
#include "effects.h"
#include "screenedge.h"
#include <QApplication>
#include <QDebug>
#include <QVarLengthArray>
#include "outline.h"
#include "shell_client.h"
#include "wayland_server.h"
#include <KDecoration2/Decoration>
#include <KDecoration2/DecoratedClient>
namespace KWin
{
static inline int sign(int v) {
return (v > 0) - (v < 0);
}
//********************************************
// Workspace
//********************************************
extern int screen_number;
extern bool is_multihead;
/*!
Resizes the workspace after an XRANDR screen size change
*/
void Workspace::desktopResized()
{
QRect geom = screens()->geometry();
NETSize desktop_geometry;
desktop_geometry.width = geom.width();
desktop_geometry.height = geom.height();
rootInfo()->setDesktopGeometry(desktop_geometry);
updateClientArea();
saveOldScreenSizes(); // after updateClientArea(), so that one still uses the previous one
// TODO: emit a signal instead and remove the deep function calls into edges and effects
ScreenEdges::self()->recreateEdges();
if (effects) {
static_cast<EffectsHandlerImpl*>(effects)->desktopResized(geom.size());
}
//Update the shape of the overlay window to fix redrawing of unredirected windows. bug#305781
m_compositor->checkUnredirect(true);
}
void Workspace::saveOldScreenSizes()
{
olddisplaysize = QSize( displayWidth(), displayHeight());
oldscreensizes.clear();
for( int i = 0;
i < screens()->count();
++i )
oldscreensizes.append( screens()->geometry( i ));
}
/*!
Updates the current client areas according to the current clients.
If the area changes or force is true, the new areas are propagated to the world.
The client area is the area that is available for clients (that
which is not taken by windows like panels, the top-of-screen menu
etc).
\sa clientArea()
*/
void Workspace::updateClientArea(bool force)
{
const Screens *s = Screens::self();
int nscreens = s->count();
const int numberOfDesktops = VirtualDesktopManager::self()->count();
QVector< QRect > new_wareas(numberOfDesktops + 1);
QVector< StrutRects > new_rmoveareas(numberOfDesktops + 1);
QVector< QVector< QRect > > new_sareas(numberOfDesktops + 1);
QVector< QRect > screens(nscreens);
QRect desktopArea;
for (int i = 0; i < nscreens; i++) {
desktopArea |= s->geometry(i);
}
for (int iS = 0;
iS < nscreens;
iS ++) {
screens [iS] = s->geometry(iS);
}
for (int i = 1;
i <= numberOfDesktops;
++i) {
new_wareas[ i ] = desktopArea;
new_sareas[ i ].resize(nscreens);
for (int iS = 0;
iS < nscreens;
iS ++)
new_sareas[ i ][ iS ] = screens[ iS ];
}
for (ClientList::ConstIterator it = clients.constBegin(); it != clients.constEnd(); ++it) {
if (!(*it)->hasStrut())
continue;
QRect r = (*it)->adjustedClientArea(desktopArea, desktopArea);
// sanity check that a strut doesn't exclude a complete screen geometry
// this is a violation to EWMH, as KWin just ignores the strut
for (int i = 0; i < Screens::self()->count(); i++) {
if (!r.intersects(Screens::self()->geometry(i))) {
qCDebug(KWIN_CORE) << "Adjusted client area would exclude a complete screen, ignore";
r = desktopArea;
break;
}
}
StrutRects strutRegion = (*it)->strutRects();
// Ignore offscreen xinerama struts. These interfere with the larger monitors on the setup
// and should be ignored so that applications that use the work area to work out where
// windows can go can use the entire visible area of the larger monitors.
// This goes against the EWMH description of the work area but it is a toss up between
// having unusable sections of the screen (Which can be quite large with newer monitors)
// or having some content appear offscreen (Relatively rare compared to other).
bool hasOffscreenXineramaStrut = (*it)->hasOffscreenXineramaStrut();
if ((*it)->isOnAllDesktops()) {
for (int i = 1;
i <= numberOfDesktops;
++i) {
if (!hasOffscreenXineramaStrut)
new_wareas[ i ] = new_wareas[ i ].intersected(r);
new_rmoveareas[ i ] += strutRegion;
for (int iS = 0;
iS < nscreens;
iS ++) {
const auto geo = new_sareas[ i ][ iS ].intersected(
(*it)->adjustedClientArea(desktopArea, screens[ iS ]));
// ignore the geometry if it results in the screen getting removed completly
if (!geo.isEmpty()) {
new_sareas[ i ][ iS ] = geo;
}
}
}
} else {
if (!hasOffscreenXineramaStrut)
new_wareas[(*it)->desktop()] = new_wareas[(*it)->desktop()].intersected(r);
new_rmoveareas[(*it)->desktop()] += strutRegion;
for (int iS = 0;
iS < nscreens;
iS ++) {
// qDebug() << "adjusting new_sarea: " << screens[ iS ];
const auto geo = new_sareas[(*it)->desktop()][ iS ].intersected(
(*it)->adjustedClientArea(desktopArea, screens[ iS ]));
// ignore the geometry if it results in the screen getting removed completly
if (!geo.isEmpty()) {
new_sareas[(*it)->desktop()][ iS ] = geo;
}
}
}
}
if (waylandServer()) {
auto updateStrutsForWaylandClient = [&] (ShellClient *c) {
// assuming that only docks have "struts" and that all docks have a strut
if (!c->hasStrut()) {
return;
}
auto margins = [c] (const QRect &geometry) {
QMargins margins;
if (!geometry.intersects(c->geometry())) {
return margins;
}
// figure out which areas of the overall screen setup it borders
const bool left = c->geometry().left() == geometry.left();
const bool right = c->geometry().right() == geometry.right();
const bool top = c->geometry().top() == geometry.top();
const bool bottom = c->geometry().bottom() == geometry.bottom();
const bool horizontal = c->geometry().width() >= c->geometry().height();
if (left && ((!top && !bottom) || !horizontal)) {
margins.setLeft(c->geometry().width());
}
if (right && ((!top && !bottom) || !horizontal)) {
margins.setRight(c->geometry().width());
}
if (top && ((!left && !right) || horizontal)) {
margins.setTop(c->geometry().height());
}
if (bottom && ((!left && !right) || horizontal)) {
margins.setBottom(c->geometry().height());
}
return margins;
};
// TODO: implement restrictedMoveArea adjustments
QRect r = desktopArea - margins(KWin::screens()->geometry());
if (c->isOnAllDesktops()) {
for (int i = 1; i <= numberOfDesktops; ++i) {
new_wareas[ i ] = new_wareas[ i ].intersected(r);
for (int iS = 0; iS < nscreens; ++iS) {
new_sareas[ i ][ iS ] = new_sareas[ i ][ iS ].intersected(screens[iS] - margins(screens[iS]));
}
}
} else {
new_wareas[c->desktop()] = new_wareas[c->desktop()].intersected(r);
for (int iS = 0; iS < nscreens; iS++) {
new_sareas[c->desktop()][ iS ] = new_sareas[c->desktop()][ iS ].intersected(screens[iS] - margins(screens[iS]));
}
}
};
const auto clients = waylandServer()->clients();
for (auto c : clients) {
updateStrutsForWaylandClient(c);
}
const auto internalClients = waylandServer()->internalClients();
for (auto c : internalClients) {
updateStrutsForWaylandClient(c);
}
}
#if 0
for (int i = 1;
i <= numberOfDesktops();
++i) {
for (int iS = 0;
iS < nscreens;
iS ++)
qCDebug(KWIN_CORE) << "new_sarea: " << new_sareas[ i ][ iS ];
}
#endif
bool changed = force;
if (screenarea.isEmpty())
changed = true;
for (int i = 1;
!changed && i <= numberOfDesktops;
++i) {
if (workarea[ i ] != new_wareas[ i ])
changed = true;
if (restrictedmovearea[ i ] != new_rmoveareas[ i ])
changed = true;
if (screenarea[ i ].size() != new_sareas[ i ].size())
changed = true;
for (int iS = 0;
!changed && iS < nscreens;
iS ++)
if (new_sareas[ i ][ iS ] != screenarea [ i ][ iS ])
changed = true;
}
if (changed) {
workarea = new_wareas;
oldrestrictedmovearea = restrictedmovearea;
restrictedmovearea = new_rmoveareas;
screenarea = new_sareas;
NETRect r;
for (int i = 1; i <= numberOfDesktops; i++) {
r.pos.x = workarea[ i ].x();
r.pos.y = workarea[ i ].y();
r.size.width = workarea[ i ].width();
r.size.height = workarea[ i ].height();
rootInfo()->setWorkArea(i, r);
}
for (auto it = m_allClients.constBegin();
it != m_allClients.constEnd();
++it)
(*it)->checkWorkspacePosition();
for (ClientList::ConstIterator it = desktops.constBegin();
it != desktops.constEnd();
++it)
(*it)->checkWorkspacePosition();
oldrestrictedmovearea.clear(); // reset, no longer valid or needed
}
}
void Workspace::updateClientArea()
{
updateClientArea(false);
}
/*!
returns the area available for clients. This is the desktop
geometry minus windows on the dock. Placement algorithms should
refer to this rather than geometry().
\sa geometry()
*/
QRect Workspace::clientArea(clientAreaOption opt, int screen, int desktop) const
{
if (desktop == NETWinInfo::OnAllDesktops || desktop == 0)
desktop = VirtualDesktopManager::self()->current();
if (screen == -1)
screen = screens()->current();
QRect sarea, warea;
if (is_multihead) {
sarea = (!screenarea.isEmpty()
&& screen < screenarea[ desktop ].size()) // screens may be missing during KWin initialization or screen config changes
? screenarea[ desktop ][ screen_number ]
: screens()->geometry(screen_number);
warea = workarea[ desktop ].isNull()
? screens()->geometry(screen_number)
: workarea[ desktop ];
} else {
sarea = (!screenarea.isEmpty()
&& screen < screenarea[ desktop ].size()) // screens may be missing during KWin initialization or screen config changes
? screenarea[ desktop ][ screen ]
: screens()->geometry(screen);
warea = workarea[ desktop ].isNull()
? QRect(0, 0, displayWidth(), displayHeight())
: workarea[ desktop ];
}
switch(opt) {
case MaximizeArea:
case PlacementArea:
return sarea;
case MaximizeFullArea:
case FullScreenArea:
case MovementArea:
case ScreenArea:
if (is_multihead)
return screens()->geometry(screen_number);
else
return screens()->geometry(screen);
case WorkArea:
if (is_multihead)
return sarea;
else
return warea;
case FullArea:
return QRect(0, 0, displayWidth(), displayHeight());
}
abort();
}
QRect Workspace::clientArea(clientAreaOption opt, const QPoint& p, int desktop) const
{
return clientArea(opt, screens()->number(p), desktop);
}
QRect Workspace::clientArea(clientAreaOption opt, const AbstractClient* c) const
{
return clientArea(opt, c->geometry().center(), c->desktop());
}
QRegion Workspace::restrictedMoveArea(int desktop, StrutAreas areas) const
{
if (desktop == NETWinInfo::OnAllDesktops || desktop == 0)
desktop = VirtualDesktopManager::self()->current();
QRegion region;
foreach (const StrutRect & rect, restrictedmovearea[desktop])
if (areas & rect.area())
region += rect;
return region;
}
bool Workspace::inUpdateClientArea() const
{
return !oldrestrictedmovearea.isEmpty();
}
QRegion Workspace::previousRestrictedMoveArea(int desktop, StrutAreas areas) const
{
if (desktop == NETWinInfo::OnAllDesktops || desktop == 0)
desktop = VirtualDesktopManager::self()->current();
QRegion region;
foreach (const StrutRect & rect, oldrestrictedmovearea.at(desktop))
if (areas & rect.area())
region += rect;
return region;
}
QVector< QRect > Workspace::previousScreenSizes() const
{
return oldscreensizes;
}
int Workspace::oldDisplayWidth() const
{
return olddisplaysize.width();
}
int Workspace::oldDisplayHeight() const
{
return olddisplaysize.height();
}
/*!
Client \a c is moved around to position \a pos. This gives the
workspace the opportunity to interveniate and to implement
snap-to-windows functionality.
The parameter \a snapAdjust is a multiplier used to calculate the
effective snap zones. When 1.0, it means that the snap zones will be
used without change.
*/
QPoint Workspace::adjustClientPosition(AbstractClient* c, QPoint pos, bool unrestricted, double snapAdjust)
{
QSize borderSnapZone(options->borderSnapZone(), options->borderSnapZone());
QRect maxRect;
int guideMaximized = MaximizeRestore;
if (c->maximizeMode() != MaximizeRestore) {
maxRect = clientArea(MaximizeArea, pos + c->rect().center(), c->desktop());
QRect geo = c->geometry();
if (c->maximizeMode() & MaximizeHorizontal && (geo.x() == maxRect.left() || geo.right() == maxRect.right())) {
guideMaximized |= MaximizeHorizontal;
borderSnapZone.setWidth(qMax(borderSnapZone.width() + 2, maxRect.width() / 16));
}
if (c->maximizeMode() & MaximizeVertical && (geo.y() == maxRect.top() || geo.bottom() == maxRect.bottom())) {
guideMaximized |= MaximizeVertical;
borderSnapZone.setHeight(qMax(borderSnapZone.height() + 2, maxRect.height() / 16));
}
}
if (options->windowSnapZone() || !borderSnapZone.isNull() || options->centerSnapZone()) {
const bool sOWO = options->isSnapOnlyWhenOverlapping();
const int screen = screens()->number(pos + c->rect().center());
if (maxRect.isNull())
maxRect = clientArea(MovementArea, screen, c->desktop());
const int xmin = maxRect.left();
const int xmax = maxRect.right() + 1; //desk size
const int ymin = maxRect.top();
const int ymax = maxRect.bottom() + 1;
const int cx(pos.x());
const int cy(pos.y());
const int cw(c->width());
const int ch(c->height());
const int rx(cx + cw);
const int ry(cy + ch); //these don't change
int nx(cx), ny(cy); //buffers
int deltaX(xmax);
int deltaY(ymax); //minimum distance to other clients
int lx, ly, lrx, lry; //coords and size for the comparison client, l
// border snap
const int snapX = borderSnapZone.width() * snapAdjust; //snap trigger
const int snapY = borderSnapZone.height() * snapAdjust;
if (snapX || snapY) {
QRect geo = c->geometry();
const QPoint cp = c->clientPos();
const QSize cs = geo.size() - c->clientSize();
int padding[4] = { cp.x(), cs.width() - cp.x(), cp.y(), cs.height() - cp.y() };
// snap to titlebar / snap to window borders on inner screen edges
Client::Position titlePos = c->titlebarPosition();
if (padding[0] && (titlePos == Client::PositionLeft || (c->maximizeMode() & MaximizeHorizontal) ||
screens()->intersecting(geo.translated(maxRect.x() - (padding[0] + geo.x()), 0)) > 1))
padding[0] = 0;
if (padding[1] && (titlePos == Client::PositionRight || (c->maximizeMode() & MaximizeHorizontal) ||
screens()->intersecting(geo.translated(maxRect.right() + padding[1] - geo.right(), 0)) > 1))
padding[1] = 0;
if (padding[2] && (titlePos == Client::PositionTop || (c->maximizeMode() & MaximizeVertical) ||
screens()->intersecting(geo.translated(0, maxRect.y() - (padding[2] + geo.y()))) > 1))
padding[2] = 0;
if (padding[3] && (titlePos == Client::PositionBottom || (c->maximizeMode() & MaximizeVertical) ||
screens()->intersecting(geo.translated(0, maxRect.bottom() + padding[3] - geo.bottom())) > 1))
padding[3] = 0;
if ((sOWO ? (cx < xmin) : true) && (qAbs(xmin - cx) < snapX)) {
deltaX = xmin - cx;
nx = xmin - padding[0];
}
if ((sOWO ? (rx > xmax) : true) && (qAbs(rx - xmax) < snapX) && (qAbs(xmax - rx) < deltaX)) {
deltaX = rx - xmax;
nx = xmax - cw + padding[1];
}
if ((sOWO ? (cy < ymin) : true) && (qAbs(ymin - cy) < snapY)) {
deltaY = ymin - cy;
ny = ymin - padding[2];
}
if ((sOWO ? (ry > ymax) : true) && (qAbs(ry - ymax) < snapY) && (qAbs(ymax - ry) < deltaY)) {
deltaY = ry - ymax;
ny = ymax - ch + padding[3];
}
}
// windows snap
int snap = options->windowSnapZone() * snapAdjust;
if (snap) {
for (auto l = m_allClients.constBegin(); l != m_allClients.constEnd(); ++l) {
if ((*l) == c)
continue;
if ((*l)->isMinimized())
continue; // is minimized
if ((*l)->tabGroup() && (*l) != (*l)->tabGroup()->current())
continue; // is not active tab
if (!((*l)->isOnDesktop(c->desktop()) || c->isOnDesktop((*l)->desktop())))
continue; // wrong virtual desktop
if (!(*l)->isOnCurrentActivity())
continue; // wrong activity
if ((*l)->isDesktop() || (*l)->isSplash())
continue;
lx = (*l)->x();
ly = (*l)->y();
lrx = lx + (*l)->width();
lry = ly + (*l)->height();
if (!(guideMaximized & MaximizeHorizontal) &&
(((cy <= lry) && (cy >= ly)) || ((ry >= ly) && (ry <= lry)) || ((cy <= ly) && (ry >= lry)))) {
if ((sOWO ? (cx < lrx) : true) && (qAbs(lrx - cx) < snap) && (qAbs(lrx - cx) < deltaX)) {
deltaX = qAbs(lrx - cx);
nx = lrx;
}
if ((sOWO ? (rx > lx) : true) && (qAbs(rx - lx) < snap) && (qAbs(rx - lx) < deltaX)) {
deltaX = qAbs(rx - lx);
nx = lx - cw;
}
}
if (!(guideMaximized & MaximizeVertical) &&
(((cx <= lrx) && (cx >= lx)) || ((rx >= lx) && (rx <= lrx)) || ((cx <= lx) && (rx >= lrx)))) {
if ((sOWO ? (cy < lry) : true) && (qAbs(lry - cy) < snap) && (qAbs(lry - cy) < deltaY)) {
deltaY = qAbs(lry - cy);
ny = lry;
}
//if ( (qAbs( ry-ly ) < snap) && (qAbs( ry - ly ) < deltaY ))
if ((sOWO ? (ry > ly) : true) && (qAbs(ry - ly) < snap) && (qAbs(ry - ly) < deltaY)) {
deltaY = qAbs(ry - ly);
ny = ly - ch;
}
}
// Corner snapping
if (!(guideMaximized & MaximizeVertical) && (nx == lrx || nx + cw == lx)) {
if ((sOWO ? (ry > lry) : true) && (qAbs(lry - ry) < snap) && (qAbs(lry - ry) < deltaY)) {
deltaY = qAbs(lry - ry);
ny = lry - ch;
}
if ((sOWO ? (cy < ly) : true) && (qAbs(cy - ly) < snap) && (qAbs(cy - ly) < deltaY)) {
deltaY = qAbs(cy - ly);
ny = ly;
}
}
if (!(guideMaximized & MaximizeHorizontal) && (ny == lry || ny + ch == ly)) {
if ((sOWO ? (rx > lrx) : true) && (qAbs(lrx - rx) < snap) && (qAbs(lrx - rx) < deltaX)) {
deltaX = qAbs(lrx - rx);
nx = lrx - cw;
}
if ((sOWO ? (cx < lx) : true) && (qAbs(cx - lx) < snap) && (qAbs(cx - lx) < deltaX)) {
deltaX = qAbs(cx - lx);
nx = lx;
}
}
}
}
// center snap
snap = options->centerSnapZone() * snapAdjust; //snap trigger
if (snap) {
int diffX = qAbs((xmin + xmax) / 2 - (cx + cw / 2));
int diffY = qAbs((ymin + ymax) / 2 - (cy + ch / 2));
if (diffX < snap && diffY < snap && diffX < deltaX && diffY < deltaY) {
// Snap to center of screen
nx = (xmin + xmax) / 2 - cw / 2;
ny = (ymin + ymax) / 2 - ch / 2;
} else if (options->borderSnapZone()) {
// Enhance border snap
if ((nx == xmin || nx == xmax - cw) && diffY < snap && diffY < deltaY) {
// Snap to vertical center on screen edge
ny = (ymin + ymax) / 2 - ch / 2;
} else if (((unrestricted ? ny == ymin : ny <= ymin) || ny == ymax - ch) &&
diffX < snap && diffX < deltaX) {
// Snap to horizontal center on screen edge
nx = (xmin + xmax) / 2 - cw / 2;
}
}
}
pos = QPoint(nx, ny);
}
return pos;
}
QRect Workspace::adjustClientSize(AbstractClient* c, QRect moveResizeGeom, int mode)
{
//adapted from adjustClientPosition on 29May2004
//this function is called when resizing a window and will modify
//the new dimensions to snap to other windows/borders if appropriate
if (options->windowSnapZone() || options->borderSnapZone()) { // || options->centerSnapZone )
const bool sOWO = options->isSnapOnlyWhenOverlapping();
const QRect maxRect = clientArea(MovementArea, c->rect().center(), c->desktop());
const int xmin = maxRect.left();
const int xmax = maxRect.right(); //desk size
const int ymin = maxRect.top();
const int ymax = maxRect.bottom();
const int cx(moveResizeGeom.left());
const int cy(moveResizeGeom.top());
const int rx(moveResizeGeom.right());
const int ry(moveResizeGeom.bottom());
int newcx(cx), newcy(cy); //buffers
int newrx(rx), newry(ry);
int deltaX(xmax);
int deltaY(ymax); //minimum distance to other clients
int lx, ly, lrx, lry; //coords and size for the comparison client, l
// border snap
int snap = options->borderSnapZone(); //snap trigger
if (snap) {
deltaX = int(snap);
deltaY = int(snap);
#define SNAP_BORDER_TOP \
if ((sOWO?(newcy<ymin):true) && (qAbs(ymin-newcy)<deltaY)) \
{ \
deltaY = qAbs(ymin-newcy); \
newcy = ymin; \
}
#define SNAP_BORDER_BOTTOM \
if ((sOWO?(newry>ymax):true) && (qAbs(ymax-newry)<deltaY)) \
{ \
deltaY = qAbs(ymax-newcy); \
newry = ymax; \
}
#define SNAP_BORDER_LEFT \
if ((sOWO?(newcx<xmin):true) && (qAbs(xmin-newcx)<deltaX)) \
{ \
deltaX = qAbs(xmin-newcx); \
newcx = xmin; \
}
#define SNAP_BORDER_RIGHT \
if ((sOWO?(newrx>xmax):true) && (qAbs(xmax-newrx)<deltaX)) \
{ \
deltaX = qAbs(xmax-newrx); \
newrx = xmax; \
}
switch(mode) {
case Client::PositionBottomRight:
SNAP_BORDER_BOTTOM
SNAP_BORDER_RIGHT
break;
case Client::PositionRight:
SNAP_BORDER_RIGHT
break;
case Client::PositionBottom:
SNAP_BORDER_BOTTOM
break;
case Client::PositionTopLeft:
SNAP_BORDER_TOP
SNAP_BORDER_LEFT
break;
case Client::PositionLeft:
SNAP_BORDER_LEFT
break;
case Client::PositionTop:
SNAP_BORDER_TOP
break;
case Client::PositionTopRight:
SNAP_BORDER_TOP
SNAP_BORDER_RIGHT
break;
case Client::PositionBottomLeft:
SNAP_BORDER_BOTTOM
SNAP_BORDER_LEFT
break;
default:
abort();
break;
}
}
// windows snap
snap = options->windowSnapZone();
if (snap) {
deltaX = int(snap);
deltaY = int(snap);
for (auto l = m_allClients.constBegin(); l != m_allClients.constEnd(); ++l) {
if ((*l)->isOnDesktop(VirtualDesktopManager::self()->current()) &&
!(*l)->isMinimized()
&& (*l) != c) {
lx = (*l)->x() - 1;
ly = (*l)->y() - 1;
lrx = (*l)->x() + (*l)->width();
lry = (*l)->y() + (*l)->height();
#define WITHIN_HEIGHT ((( newcy <= lry ) && ( newcy >= ly )) || \
(( newry >= ly ) && ( newry <= lry )) || \
(( newcy <= ly ) && ( newry >= lry )) )
#define WITHIN_WIDTH ( (( cx <= lrx ) && ( cx >= lx )) || \
(( rx >= lx ) && ( rx <= lrx )) || \
(( cx <= lx ) && ( rx >= lrx )) )
#define SNAP_WINDOW_TOP if ( (sOWO?(newcy<lry):true) \
&& WITHIN_WIDTH \
&& (qAbs( lry - newcy ) < deltaY) ) { \
deltaY = qAbs( lry - newcy ); \
newcy=lry; \
}
#define SNAP_WINDOW_BOTTOM if ( (sOWO?(newry>ly):true) \
&& WITHIN_WIDTH \
&& (qAbs( ly - newry ) < deltaY) ) { \
deltaY = qAbs( ly - newry ); \
newry=ly; \
}
#define SNAP_WINDOW_LEFT if ( (sOWO?(newcx<lrx):true) \
&& WITHIN_HEIGHT \
&& (qAbs( lrx - newcx ) < deltaX)) { \
deltaX = qAbs( lrx - newcx ); \
newcx=lrx; \
}
#define SNAP_WINDOW_RIGHT if ( (sOWO?(newrx>lx):true) \
&& WITHIN_HEIGHT \
&& (qAbs( lx - newrx ) < deltaX)) \
{ \
deltaX = qAbs( lx - newrx ); \
newrx=lx; \
}
#define SNAP_WINDOW_C_TOP if ( (sOWO?(newcy<ly):true) \
&& (newcx == lrx || newrx == lx) \
&& qAbs(ly-newcy) < deltaY ) { \
deltaY = qAbs( ly - newcy + 1 ); \
newcy = ly + 1; \
}
#define SNAP_WINDOW_C_BOTTOM if ( (sOWO?(newry>lry):true) \
&& (newcx == lrx || newrx == lx) \
&& qAbs(lry-newry) < deltaY ) { \
deltaY = qAbs( lry - newry - 1 ); \
newry = lry - 1; \
}
#define SNAP_WINDOW_C_LEFT if ( (sOWO?(newcx<lx):true) \
&& (newcy == lry || newry == ly) \
&& qAbs(lx-newcx) < deltaX ) { \
deltaX = qAbs( lx - newcx + 1 ); \
newcx = lx + 1; \
}
#define SNAP_WINDOW_C_RIGHT if ( (sOWO?(newrx>lrx):true) \
&& (newcy == lry || newry == ly) \
&& qAbs(lrx-newrx) < deltaX ) { \
deltaX = qAbs( lrx - newrx - 1 ); \
newrx = lrx - 1; \
}
switch(mode) {
case Client::PositionBottomRight:
SNAP_WINDOW_BOTTOM
SNAP_WINDOW_RIGHT
SNAP_WINDOW_C_BOTTOM
SNAP_WINDOW_C_RIGHT
break;
case Client::PositionRight:
SNAP_WINDOW_RIGHT
SNAP_WINDOW_C_RIGHT
break;
case Client::PositionBottom:
SNAP_WINDOW_BOTTOM
SNAP_WINDOW_C_BOTTOM
break;
case Client::PositionTopLeft:
SNAP_WINDOW_TOP
SNAP_WINDOW_LEFT
SNAP_WINDOW_C_TOP
SNAP_WINDOW_C_LEFT
break;
case Client::PositionLeft:
SNAP_WINDOW_LEFT
SNAP_WINDOW_C_LEFT
break;
case Client::PositionTop:
SNAP_WINDOW_TOP
SNAP_WINDOW_C_TOP
break;
case Client::PositionTopRight:
SNAP_WINDOW_TOP
SNAP_WINDOW_RIGHT
SNAP_WINDOW_C_TOP
SNAP_WINDOW_C_RIGHT
break;
case Client::PositionBottomLeft:
SNAP_WINDOW_BOTTOM
SNAP_WINDOW_LEFT
SNAP_WINDOW_C_BOTTOM
SNAP_WINDOW_C_LEFT
break;
default:
abort();
break;
}
}
}
}
// center snap
//snap = options->centerSnapZone;
//if (snap)
// {
// // Don't resize snap to center as it interferes too much
// // There are two ways of implementing this if wanted:
// // 1) Snap only to the same points that the move snap does, and
// // 2) Snap to the horizontal and vertical center lines of the screen
// }
moveResizeGeom = QRect(QPoint(newcx, newcy), QPoint(newrx, newry));
}
return moveResizeGeom;
}
/*!
Marks the client as being moved around by the user.
*/
void Workspace::setClientIsMoving(AbstractClient *c)
{
Q_ASSERT(!c || !movingClient); // Catch attempts to move a second
// window while still moving the first one.
movingClient = c;
if (movingClient)
++block_focus;
else
--block_focus;
}
// When kwin crashes, windows will not be gravitated back to their original position
// and will remain offset by the size of the decoration. So when restarting, fix this
// (the property with the size of the frame remains on the window after the crash).
void Workspace::fixPositionAfterCrash(xcb_window_t w, const xcb_get_geometry_reply_t *geometry)
{
NETWinInfo i(connection(), w, rootWindow(), NET::WMFrameExtents, 0);
NETStrut frame = i.frameExtents();
if (frame.left != 0 || frame.top != 0) {
// left and top needed due to narrowing conversations restrictions in C++11
const uint32_t left = frame.left;
const uint32_t top = frame.top;
const uint32_t values[] = { geometry->x - left, geometry->y - top };
xcb_configure_window(connection(), w, XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y, values);
}
}
//********************************************
// Client
//********************************************
/*!
Returns \a area with the client's strut taken into account.
Used from Workspace in updateClientArea.
*/
// TODO move to Workspace?
QRect Client::adjustedClientArea(const QRect &desktopArea, const QRect& area) const
{
QRect r = area;
NETExtendedStrut str = strut();
QRect stareaL = QRect(
0,
str . left_start,
str . left_width,
str . left_end - str . left_start + 1);
QRect stareaR = QRect(
desktopArea . right() - str . right_width + 1,
str . right_start,
str . right_width,
str . right_end - str . right_start + 1);
QRect stareaT = QRect(
str . top_start,
0,
str . top_end - str . top_start + 1,
str . top_width);
QRect stareaB = QRect(
str . bottom_start,
desktopArea . bottom() - str . bottom_width + 1,
str . bottom_end - str . bottom_start + 1,
str . bottom_width);
QRect screenarea = workspace()->clientArea(ScreenArea, this);
// HACK: workarea handling is not xinerama aware, so if this strut
// reserves place at a xinerama edge that's inside the virtual screen,
// ignore the strut for workspace setting.
if (area == QRect(0, 0, displayWidth(), displayHeight())) {
if (stareaL.left() < screenarea.left())
stareaL = QRect();
if (stareaR.right() > screenarea.right())
stareaR = QRect();
if (stareaT.top() < screenarea.top())
stareaT = QRect();
if (stareaB.bottom() < screenarea.bottom())
stareaB = QRect();
}
// Handle struts at xinerama edges that are inside the virtual screen.
// They're given in virtual screen coordinates, make them affect only
// their xinerama screen.
stareaL.setLeft(qMax(stareaL.left(), screenarea.left()));
stareaR.setRight(qMin(stareaR.right(), screenarea.right()));
stareaT.setTop(qMax(stareaT.top(), screenarea.top()));
stareaB.setBottom(qMin(stareaB.bottom(), screenarea.bottom()));
if (stareaL . intersects(area)) {
// qDebug() << "Moving left of: " << r << " to " << stareaL.right() + 1;
r . setLeft(stareaL . right() + 1);
}
if (stareaR . intersects(area)) {
// qDebug() << "Moving right of: " << r << " to " << stareaR.left() - 1;
r . setRight(stareaR . left() - 1);
}
if (stareaT . intersects(area)) {
// qDebug() << "Moving top of: " << r << " to " << stareaT.bottom() + 1;
r . setTop(stareaT . bottom() + 1);
}
if (stareaB . intersects(area)) {
// qDebug() << "Moving bottom of: " << r << " to " << stareaB.top() - 1;
r . setBottom(stareaB . top() - 1);
}
return r;
}
NETExtendedStrut Client::strut() const
{
NETExtendedStrut ext = info->extendedStrut();
NETStrut str = info->strut();
if (ext.left_width == 0 && ext.right_width == 0 && ext.top_width == 0 && ext.bottom_width == 0
&& (str.left != 0 || str.right != 0 || str.top != 0 || str.bottom != 0)) {
// build extended from simple
if (str.left != 0) {
ext.left_width = str.left;
ext.left_start = 0;
ext.left_end = displayHeight();
}
if (str.right != 0) {
ext.right_width = str.right;
ext.right_start = 0;
ext.right_end = displayHeight();
}
if (str.top != 0) {
ext.top_width = str.top;
ext.top_start = 0;
ext.top_end = displayWidth();
}
if (str.bottom != 0) {
ext.bottom_width = str.bottom;
ext.bottom_start = 0;
ext.bottom_end = displayWidth();
}
}
return ext;
}