Refactor Screen Edge Handling
This initial commit introduces a two new files screenedge.h and screenedge.cpp which cover a new class ScreenEdge. The code for screen edge handling was copied from Workspace to this class. Workspace had to be extended by a getter for movingWindow. CMakeList was updated to build the new class.
This commit is contained in:
Arthur Arlt
parent
aa3f7a6f4e
commit
55cbff052f
4 changed files with 453 additions and 0 deletions
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@ -131,6 +131,7 @@ set(kwin_KDEINIT_SRCS
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compositingprefs.cpp
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compositingprefs.cpp
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desktoplayout.cpp
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desktoplayout.cpp
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paintredirector.cpp
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paintredirector.cpp
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screenedge.cpp
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tile.cpp
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tile.cpp
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tiling.cpp
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tiling.cpp
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tilinglayout.cpp
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tilinglayout.cpp
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374
screenedge.cpp
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374
screenedge.cpp
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@ -0,0 +1,374 @@
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/********************************************************************
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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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Copyright (C) 2011 Arthur Arlt <a.arlt@stud.uni-heidelberg.de>
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Since the functionality provided in this class has been moved from
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class Workspace, it is not clear who exactly has written the code.
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The list below contains the copyright holders of the class Workspace.
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Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
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Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
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Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "screenedge.h"
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// KWin
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#include "atoms.h"
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#include "effects.h"
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#include "options.h"
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#include "utils.h"
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#include "workspace.h"
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// Qt
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#include <QtCore/QTimer>
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#include <QtCore/QVector>
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#include <QtCore/QTextStream>
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#include <QtDBus/QDBusInterface>
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// KDE-Workspace
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#include <kephal/screens.h>
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namespace KWin {
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ScreenEdge::ScreenEdge()
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: QObject(NULL)
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{
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}
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ScreenEdge::~ScreenEdge()
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{
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}
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void ScreenEdge::updateElectricBorders()
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{
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electric_time_first = xTime();
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electric_time_last = xTime();
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electric_time_last_trigger = xTime();
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electric_current_border = ElectricNone;
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QRect r = Kephal::ScreenUtils::desktopGeometry();
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electricTop = r.top();
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electricBottom = r.bottom();
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electricLeft = r.left();
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electricRight = r.right();
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for (int pos = 0; pos < ELECTRIC_COUNT; ++pos) {
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if (electric_reserved[pos] == 0) {
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if (electric_windows[pos] != None)
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XDestroyWindow(display(), electric_windows[pos]);
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electric_windows[pos] = None;
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continue;
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}
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if (electric_windows[pos] != None)
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continue;
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XSetWindowAttributes attributes;
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attributes.override_redirect = True;
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attributes.event_mask = EnterWindowMask | LeaveWindowMask;
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unsigned long valuemask = CWOverrideRedirect | CWEventMask;
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int xywh[ELECTRIC_COUNT][4] = {
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{ r.left() + 1, r.top(), r.width() - 2, 1 }, // Top
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{ r.right(), r.top(), 1, 1 }, // Top-right
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{ r.right(), r.top() + 1, 1, r.height() - 2 }, // Etc.
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{ r.right(), r.bottom(), 1, 1 },
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{ r.left() + 1, r.bottom(), r.width() - 2, 1 },
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{ r.left(), r.bottom(), 1, 1 },
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{ r.left(), r.top() + 1, 1, r.height() - 2 },
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{ r.left(), r.top(), 1, 1 }
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};
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electric_windows[pos] = XCreateWindow(display(), rootWindow(),
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xywh[pos][0], xywh[pos][1], xywh[pos][2], xywh[pos][3],
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0, CopyFromParent, InputOnly, CopyFromParent, valuemask, &attributes);
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XMapWindow(display(), electric_windows[pos]);
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// Set XdndAware on the windows, so that DND enter events are received (#86998)
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Atom version = 4; // XDND version
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XChangeProperty(display(), electric_windows[pos], atoms->xdnd_aware, XA_ATOM,
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32, PropModeReplace, (unsigned char*)(&version), 1);
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}
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}
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void ScreenEdge::destroyElectricBorders()
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{
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for (int pos = 0; pos < ELECTRIC_COUNT; ++pos) {
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if (electric_windows[pos] != None)
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XDestroyWindow(display(), electric_windows[pos]);
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electric_windows[pos] = None;
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}
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}
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void ScreenEdge::restoreElectricBorderSize(ElectricBorder border)
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{
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if (electric_windows[border] == None)
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return;
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QRect r = Kephal::ScreenUtils::desktopGeometry();
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int xywh[ELECTRIC_COUNT][4] = {
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{ r.left() + 1, r.top(), r.width() - 2, 1 }, // Top
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{ r.right(), r.top(), 1, 1 }, // Top-right
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{ r.right(), r.top() + 1, 1, r.height() - 2 }, // Etc.
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{ r.right(), r.bottom(), 1, 1 },
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{ r.left() + 1, r.bottom(), r.width() - 2, 1 },
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{ r.left(), r.bottom(), 1, 1 },
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{ r.left(), r.top() + 1, 1, r.height() - 2 },
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{ r.left(), r.top(), 1, 1 }
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};
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XMoveResizeWindow(display(), electric_windows[border],
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xywh[border][0], xywh[border][1], xywh[border][2], xywh[border][3]);
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}
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void ScreenEdge::reserveElectricBorderActions(bool reserve)
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{
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for (int pos = 0; pos < ELECTRIC_COUNT; ++pos)
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if (options->electricBorderAction(static_cast<ElectricBorder>(pos))) {
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if (reserve)
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reserveElectricBorder(static_cast<ElectricBorder>(pos));
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else
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unreserveElectricBorder(static_cast<ElectricBorder>(pos));
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}
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}
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void ScreenEdge::reserveElectricBorderSwitching(bool reserve)
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{
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for (int pos = 0; pos < ELECTRIC_COUNT; ++pos)
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if (reserve)
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reserveElectricBorder(static_cast<ElectricBorder>(pos));
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else
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unreserveElectricBorder(static_cast<ElectricBorder>(pos));
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}
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void ScreenEdge::reserveElectricBorder(ElectricBorder border)
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{
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if (border == ElectricNone)
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return;
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if (electric_reserved[border]++ == 0)
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QTimer::singleShot(0, this, SLOT(updateElectricBorders()));
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}
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void ScreenEdge::unreserveElectricBorder(ElectricBorder border)
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{
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if (border == ElectricNone)
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return;
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assert(electric_reserved[border] > 0);
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if (--electric_reserved[border] == 0)
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QTimer::singleShot(0, this, SLOT(updateElectricBorders()));
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}
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void ScreenEdge::checkElectricBorder(const QPoint& pos, Time now)
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{
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if ((pos.x() != electricLeft) &&
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(pos.x() != electricRight) &&
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(pos.y() != electricTop) &&
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(pos.y() != electricBottom))
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return;
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bool have_borders = false;
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for (int i = 0; i < ELECTRIC_COUNT; ++i)
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if (electric_windows[i] != None)
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have_borders = true;
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if (!have_borders)
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return;
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Time treshold_set = options->electricBorderDelay(); // Set timeout
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Time treshold_reset = 250; // Reset timeout
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Time treshold_trigger = options->electricBorderCooldown(); // Minimum time between triggers
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int distance_reset = 30; // Mouse should not move more than this many pixels
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int pushback_pixels = options->electricBorderPushbackPixels();
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ElectricBorder border;
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if (pos.x() == electricLeft && pos.y() == electricTop)
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border = ElectricTopLeft;
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else if (pos.x() == electricRight && pos.y() == electricTop)
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border = ElectricTopRight;
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else if (pos.x() == electricLeft && pos.y() == electricBottom)
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border = ElectricBottomLeft;
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else if (pos.x() == electricRight && pos.y() == electricBottom)
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border = ElectricBottomRight;
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else if (pos.x() == electricLeft)
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border = ElectricLeft;
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else if (pos.x() == electricRight)
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border = ElectricRight;
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else if (pos.y() == electricTop)
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border = ElectricTop;
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else if (pos.y() == electricBottom)
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border = ElectricBottom;
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else
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abort();
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if (electric_windows[border] == None)
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return;
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if (pushback_pixels == 0) {
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// no pushback so we have to activate at once
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electric_time_last = now;
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}
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if ((electric_current_border == border) &&
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(timestampDiff(electric_time_last, now) < treshold_reset) &&
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(timestampDiff(electric_time_last_trigger, now) > treshold_trigger) &&
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((pos - electric_push_point).manhattanLength() < distance_reset)) {
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electric_time_last = now;
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if (timestampDiff(electric_time_first, now) > treshold_set) {
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electric_current_border = ElectricNone;
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electric_time_last_trigger = now;
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if (Workspace::self()->getMovingClient()) {
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// If moving a client or have force doing the desktop switch
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if (options->electricBorders() != Options::ElectricDisabled)
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electricBorderSwitchDesktop(border, pos);
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return; // Don't reset cursor position
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} else {
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if (options->electricBorders() == Options::ElectricAlways &&
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(border == ElectricTop || border == ElectricRight ||
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border == ElectricBottom || border == ElectricLeft)) {
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// If desktop switching is always enabled don't apply it to the corners if
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// an effect is applied to it (We will check that later).
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electricBorderSwitchDesktop(border, pos);
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return; // Don't reset cursor position
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}
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switch(options->electricBorderAction(border)) {
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case ElectricActionDashboard: { // Display Plasma dashboard
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QDBusInterface plasmaApp("org.kde.plasma-desktop", "/App");
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plasmaApp.call("toggleDashboard");
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}
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break;
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case ElectricActionShowDesktop: {
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Workspace::self()->setShowingDesktop(!Workspace::self()->showingDesktop());
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break;
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}
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case ElectricActionLockScreen: { // Lock the screen
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QDBusInterface screenSaver("org.kde.screensaver", "/ScreenSaver");
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screenSaver.call("Lock");
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}
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break;
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case ElectricActionPreventScreenLocking: {
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break;
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}
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case ElectricActionNone: // Either desktop switching or an effect
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default: {
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if (effects && static_cast<EffectsHandlerImpl*>(effects)->borderActivated(border))
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{} // Handled by effects
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else {
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electricBorderSwitchDesktop(border, pos);
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return; // Don't reset cursor position
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}
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}
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}
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}
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}
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} else {
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electric_current_border = border;
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electric_time_first = now;
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electric_time_last = now;
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electric_push_point = pos;
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}
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// Reset the pointer to find out whether the user is really pushing
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// (the direction back from which it came, starting from top clockwise)
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const int xdiff[ELECTRIC_COUNT] = { 0,
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-pushback_pixels,
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-pushback_pixels,
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-pushback_pixels,
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0,
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pushback_pixels,
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pushback_pixels,
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pushback_pixels
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};
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const int ydiff[ELECTRIC_COUNT] = { pushback_pixels,
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pushback_pixels,
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0,
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-pushback_pixels,
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-pushback_pixels,
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-pushback_pixels,
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0,
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pushback_pixels
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};
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QCursor::setPos(pos.x() + xdiff[border], pos.y() + ydiff[border]);
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}
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void ScreenEdge::electricBorderSwitchDesktop(ElectricBorder border, const QPoint& _pos)
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{
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QPoint pos = _pos;
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int desk = Workspace::self()->currentDesktop();
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const int OFFSET = 2;
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if (border == ElectricLeft || border == ElectricTopLeft || border == ElectricBottomLeft) {
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desk = Workspace::self()->desktopToLeft(desk, options->rollOverDesktops);
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pos.setX(displayWidth() - 1 - OFFSET);
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}
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if (border == ElectricRight || border == ElectricTopRight || border == ElectricBottomRight) {
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desk = Workspace::self()->desktopToRight(desk, options->rollOverDesktops);
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pos.setX(OFFSET);
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}
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if (border == ElectricTop || border == ElectricTopLeft || border == ElectricTopRight) {
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desk = Workspace::self()->desktopAbove(desk, options->rollOverDesktops);
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pos.setY(displayHeight() - 1 - OFFSET);
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}
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if (border == ElectricBottom || border == ElectricBottomLeft || border == ElectricBottomRight) {
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desk = Workspace::self()->desktopBelow(desk, options->rollOverDesktops);
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pos.setY(OFFSET);
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}
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int desk_before = Workspace::self()->currentDesktop();
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Workspace::self()->setCurrentDesktop(desk);
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if (Workspace::self()->currentDesktop() != desk_before)
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QCursor::setPos(pos);
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}
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/**
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* Called when the user entered an electric border with the mouse.
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* It may switch to another virtual desktop.
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*/
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bool ScreenEdge::electricBorderEvent(XEvent* e)
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{
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if (e->type == EnterNotify) {
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for (int i = 0; i < ELECTRIC_COUNT; ++i)
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if (electric_windows[i] != None && e->xcrossing.window == electric_windows[i]) {
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// The user entered an electric border
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checkElectricBorder(QPoint(e->xcrossing.x_root, e->xcrossing.y_root), e->xcrossing.time);
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return true;
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}
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}
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if (e->type == ClientMessage) {
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if (e->xclient.message_type == atoms->xdnd_position) {
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for (int i = 0; i < ELECTRIC_COUNT; ++i)
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if (electric_windows[i] != None && e->xclient.window == electric_windows[i]) {
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updateXTime();
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checkElectricBorder(QPoint(e->xclient.data.l[2] >> 16, e->xclient.data.l[2] & 0xffff), xTime());
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return true;
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}
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}
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}
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return false;
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}
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/**
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* Raise electric border windows to the real top of the screen. We only need
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||||||
|
* to do this if an effect input window is active.
|
||||||
|
*/
|
||||||
|
void ScreenEdge::raiseElectricBorderWindows()
|
||||||
|
{
|
||||||
|
Window* windows = new Window[ 8 ]; // There are up to 8 borders
|
||||||
|
int pos = 0;
|
||||||
|
for (int i = 0; i < ELECTRIC_COUNT; ++i)
|
||||||
|
if (electric_windows[ i ] != None)
|
||||||
|
windows[ pos++ ] = electric_windows[ i ];
|
||||||
|
if (!pos) {
|
||||||
|
delete [] windows;
|
||||||
|
return; // No borders at all
|
||||||
|
}
|
||||||
|
XRaiseWindow(display(), windows[ 0 ]);
|
||||||
|
XRestackWindows(display(), windows, pos);
|
||||||
|
delete [] windows;
|
||||||
|
}
|
||||||
|
} //namespace
|
||||||
75
screenedge.h
Normal file
75
screenedge.h
Normal file
|
|
@ -0,0 +1,75 @@
|
||||||
|
/********************************************************************
|
||||||
|
KWin - the KDE window manager
|
||||||
|
This file is part of the KDE project.
|
||||||
|
|
||||||
|
Copyright (C) 2011 Arthur Arlt <a.arlt@stud.uni-heidelberg.de>
|
||||||
|
|
||||||
|
Since the functionality provided in this class has been moved from
|
||||||
|
class Workspace, it is not clear who exactly has written the code.
|
||||||
|
The list below contains the copyright holders of the class Workspace.
|
||||||
|
|
||||||
|
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/>.
|
||||||
|
*********************************************************************/
|
||||||
|
|
||||||
|
#ifndef KWIN_SCREENEDGE_H
|
||||||
|
#define KWIN_SCREENEDGE_H
|
||||||
|
#include <QObject>
|
||||||
|
#include "kwinglobals.h"
|
||||||
|
|
||||||
|
namespace KWin {
|
||||||
|
|
||||||
|
//-----------------------------------------------------------------------------
|
||||||
|
// Electric Borders
|
||||||
|
//-----------------------------------------------------------------------------
|
||||||
|
// Electric Border Window management. Electric borders allow a user to change
|
||||||
|
// the virtual desktop or activate another features by moving the mouse pointer
|
||||||
|
// to the borders or corners. Technically this is done with input only windows.
|
||||||
|
//-----------------------------------------------------------------------------
|
||||||
|
class ScreenEdge : QObject {
|
||||||
|
Q_OBJECT
|
||||||
|
public:
|
||||||
|
ScreenEdge();
|
||||||
|
~ScreenEdge();
|
||||||
|
void checkElectricBorder(const QPoint& pos, Time now);
|
||||||
|
void restoreElectricBorderSize(ElectricBorder border);
|
||||||
|
void reserveElectricBorder(ElectricBorder border);
|
||||||
|
void unreserveElectricBorder(ElectricBorder border);
|
||||||
|
void reserveElectricBorderActions(bool reserve);
|
||||||
|
void reserveElectricBorderSwitching(bool reserve);
|
||||||
|
void raiseElectricBorderWindows();
|
||||||
|
private Q_SLOTS:
|
||||||
|
void updateElectricBorders();
|
||||||
|
private:
|
||||||
|
void destroyElectricBorders();
|
||||||
|
bool electricBorderEvent(XEvent * e);
|
||||||
|
void electricBorderSwitchDesktop(ElectricBorder border, const QPoint& pos);
|
||||||
|
|
||||||
|
ElectricBorder electric_current_border;
|
||||||
|
Window electric_windows[ELECTRIC_COUNT];
|
||||||
|
int electricLeft;
|
||||||
|
int electricRight;
|
||||||
|
int electricTop;
|
||||||
|
int electricBottom;
|
||||||
|
Time electric_time_first;
|
||||||
|
Time electric_time_last;
|
||||||
|
Time electric_time_last_trigger;
|
||||||
|
QPoint electric_push_point;
|
||||||
|
int electric_reserved[ELECTRIC_COUNT]; // Corners/edges used by something
|
||||||
|
};
|
||||||
|
}
|
||||||
|
#endif // KWIN_SCREENEDGE_H
|
||||||
|
|
@ -549,6 +549,9 @@ public:
|
||||||
void stopMousePolling();
|
void stopMousePolling();
|
||||||
|
|
||||||
void raiseElectricBorderWindows();
|
void raiseElectricBorderWindows();
|
||||||
|
Client* getMovingClient() {
|
||||||
|
return movingClient;
|
||||||
|
}
|
||||||
|
|
||||||
public slots:
|
public slots:
|
||||||
void addRepaintFull();
|
void addRepaintFull();
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue