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115 lines
3.0 KiB
115 lines
3.0 KiB
/* |
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* Copyright © 2008 Fredrik Höglund <fredrik@kde.org> |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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*/ |
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#include <QWidget> |
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#include <QPixmap> |
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#include <QtX11Extras/QX11Info> |
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#include <X11/Xlib.h> |
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#include "logouteffect.h" |
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#include "fadeeffect.h" |
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#include "curtaineffect.h" |
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#include <unistd.h> // for gethostname() |
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static bool localDisplay(Display *dpy) |
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{ |
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QByteArray display(XDisplayString(dpy)); |
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QByteArray hostPart = display.left(display.indexOf(':')); |
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if (hostPart.isEmpty()) |
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return true; |
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if (hostPart == "localhost") |
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return true; |
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if (hostPart == "127.0.0.1") |
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return true; |
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char name[2048]; |
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gethostname(name, sizeof(name)); |
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if (hostPart == name) |
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return true; |
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return false; |
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} |
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static bool supportedFormat(const QPixmap *pixmap) |
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{ |
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int depth = pixmap->depth(); |
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Visual *visual = (Visual*)pixmap->x11Info().visual(); |
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if (ImageByteOrder(pixmap->x11Info().display()) != LSBFirst) |
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return false; |
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// Assume this means the pixmap is ARGB32 |
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if (pixmap->hasAlphaChannel()) |
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return true; |
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// 24/34 bit x8a8r8g8b8 |
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if ((depth == 24 || depth == 32) && |
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visual->red_mask == 0x00ff0000 && |
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visual->green_mask == 0x0000ff00 && |
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visual->blue_mask == 0x000000ff) |
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{ |
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return true; |
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} |
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// 16 bit r5g6b5 |
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if (depth == 16 && |
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visual->red_mask == 0xf800 && |
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visual->green_mask == 0x07e0 && |
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visual->blue_mask == 0x001f) |
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{ |
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return true; |
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} |
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return false; |
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} |
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// ---------------------------------------------------------------------------- |
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LogoutEffect::LogoutEffect(QWidget *parent, QPixmap *pixmap) |
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: QObject(parent), parent(parent), pixmap(pixmap) |
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{ |
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} |
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LogoutEffect::~LogoutEffect() |
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{ |
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} |
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LogoutEffect *LogoutEffect::create(QWidget *parent, QPixmap *pixmap) |
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{ |
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Display *dpy = parent->x11Info().display(); |
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if (!localDisplay(dpy) || !supportedFormat(pixmap)) |
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return new CurtainEffect(parent, pixmap); |
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else |
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return new FadeEffect(parent, pixmap); |
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} |
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