100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
/*
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 1999, 2000 Matthias Ettrich <ettrich@kde.org>
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SPDX-FileCopyrightText: 1997-2002 Cristian Tibirna <tibirna@kde.org>
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SPDX-FileCopyrightText: 2003 Lubos Lunak <l.lunak@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef KWIN_PLACEMENT_H
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#define KWIN_PLACEMENT_H
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// KWin
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#include <kwinglobals.h>
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// Qt
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#include <QPoint>
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#include <QRect>
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#include <QList>
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class QObject;
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namespace KWin
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{
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class AbstractClient;
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class KWIN_EXPORT Placement
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{
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public:
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virtual ~Placement();
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/**
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* Placement policies. How workspace decides the way windows get positioned
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* on the screen. The better the policy, the heavier the resource use.
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* Normally you don't have to worry. What the WM adds to the startup time
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* is nil compared to the creation of the window itself in the memory
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*/
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enum Policy {
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NoPlacement, // not really a placement
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Default, // special, means to use the global default
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Unknown, // special, means the function should use its default
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Random,
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Smart,
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Cascade,
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Centered,
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ZeroCornered,
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UnderMouse, // special
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OnMainWindow, // special
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Maximizing
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};
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void place(AbstractClient *c, const QRect &area);
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void placeAtRandom(AbstractClient* c, const QRect& area, Policy next = Unknown);
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void placeCascaded(AbstractClient* c, const QRect& area, Policy next = Unknown);
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void placeSmart(AbstractClient* c, const QRect& area, Policy next = Unknown);
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void placeMaximizing(AbstractClient* c, const QRect& area, Policy next = Unknown);
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void placeCentered(AbstractClient* c, const QRect& area, Policy next = Unknown);
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void placeZeroCornered(AbstractClient* c, const QRect& area, Policy next = Unknown);
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void placeDialog(AbstractClient* c, const QRect& area, Policy next = Unknown);
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void placeUtility(AbstractClient* c, const QRect& area, Policy next = Unknown);
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void placeOnScreenDisplay(AbstractClient* c, const QRect& area);
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void reinitCascading(int desktop);
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/**
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* Cascades all clients on the current desktop
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*/
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void cascadeDesktop();
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/**
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* Unclutters the current desktop by smart-placing all clients again.
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*/
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void unclutterDesktop();
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static Policy policyFromString(const QString& policy, bool no_special);
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static const char* policyToString(Policy policy);
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private:
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void place(AbstractClient *c, const QRect &area, Policy policy, Policy nextPlacement = Unknown);
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void placeUnderMouse(AbstractClient *c, const QRect &area, Policy next = Unknown);
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void placeOnMainWindow(AbstractClient *c, const QRect &area, Policy next = Unknown);
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void placeTransient(AbstractClient *c);
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//CT needed for cascading+
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struct DesktopCascadingInfo {
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QPoint pos;
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int col;
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int row;
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};
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QList<DesktopCascadingInfo> cci;
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KWIN_SINGLETON(Placement)
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};
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} // namespace
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#endif
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