Rename kwin to twin (Part 2 of 2)

9 files changed, 1056 insertions, 0 deletions

diff --git a/twin/tools/Makefile.am b/twin/tools/Makefile.am
new file mode 100644
index 000000000..7bc1284a5
--- /dev/null
+++ b/twin/tools/Makefile.am
@@ -0,0 +1,11 @@
+noinst_PROGRAMS = test_gravity
+
+SUBDIRS = decobenchmark
+
+INCLUDES = $(all_includes)
+
+test_gravity_SOURCES = test_gravity.cpp
+test_gravity_LDFLAGS = $(all_libraries) $(KDE_RPATH) $(LIB_QT) -lDCOP $(LIB_TDECORE) $(LIB_TDEUI) -ltdefx $(LIB_KIO) -lktexteditor
+test_gravity_LDADD = $(LIB_X11)
+
+METASOURCES = AUTO
diff --git a/twin/tools/decobenchmark/Makefile.am b/twin/tools/decobenchmark/Makefile.am
new file mode 100644
index 000000000..bb3e884cd
--- /dev/null
+++ b/twin/tools/decobenchmark/Makefile.am
@@ -0,0 +1,9 @@
+noinst_PROGRAMS = decobenchmark
+
+INCLUDES = $(all_includes)
+
+decobenchmark_SOURCES = main.cpp preview.cpp
+decobenchmark_LDFLAGS = $(all_libraries)
+decobenchmark_LDADD = ../../lib/libtdecorations.la
+
+METASOURCES = AUTO
diff --git a/twin/tools/decobenchmark/main.cpp b/twin/tools/decobenchmark/main.cpp
new file mode 100644
index 000000000..59a6e6762
--- /dev/null
+++ b/twin/tools/decobenchmark/main.cpp
@@ -0,0 +1,138 @@
+/*
+ *
+ * Copyright (c) 2005 Sandro Giessl <sandro@giessl.com>
+ * Copyright (c) 2005 Luciano Montanaro <mikelima@cirulla.net>
+ *
+ *  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, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <tqtimer.h>
+
+#include <kdebug.h>
+#include <kconfig.h>
+#include <kdecoration_plugins_p.h>
+#include <kdecorationfactory.h>
+
+#include <time.h>
+#include <sys/timeb.h>
+#include <iostream>
+
+
+#include <kaboutdata.h>
+#include <kapplication.h>
+#include <kcmdlineargs.h>
+
+#include "preview.h"
+#include "main.h"
+
+static KCmdLineOptions options[] =
+{
+	{ "+decoration", "Decoration library to use, such as twin3_plastik.", 0 },
+	{ "+tests", "Which test should be executed ('all', 'tqrepaint', 'caption', 'resize', 'recreation')", 0 },
+	{ "+repetitions", "Number of test repetitions.", 0 },
+	{ 0, 0, 0 }
+};
+
+DecoBenchApplication::DecoBenchApplication(const TQString &library, Tests tests, int count) :
+		m_tests(tests),
+		m_count(count)
+{
+	KConfig twinConfig("twinrc");
+	twinConfig.setGroup("Style");
+
+	plugins = new KDecorationPreviewPlugins( &twinConfig );
+	preview = new KDecorationPreview( plugins, 0 );
+
+	if (plugins->loadPlugin(library) )
+		kdDebug() << "Decoration library " << library << " loaded..." << endl;
+	else
+		kdError() << "Error loading decoration library " << library << "!" << endl;
+
+	if (preview->recreateDecoration() )
+		kdDebug() << "Decoration created..." << endl;
+	else
+		kdError() << "Error creating decoration!" << endl;
+
+	preview->show();
+}
+
+DecoBenchApplication::~DecoBenchApplication()
+{
+	delete preview;
+	delete plugins;
+}
+
+void DecoBenchApplication::executeTest()
+{
+	clock_t stime = clock();
+	timeb astart, aend;
+	ftime(&astart);
+
+	if (m_tests == AllTests || m_tests == RepaintTest)
+		preview->performRepaintTest(m_count);
+	if (m_tests == AllTests || m_tests == CaptionTest)
+		preview->performCaptionTest(m_count);
+	if (m_tests == AllTests || m_tests == ResizeTest)
+		preview->performResizeTest(m_count);
+	if (m_tests == AllTests || m_tests == RecreationTest)
+		preview->performRecreationTest(m_count);
+
+	clock_t etime = clock();
+	ftime(&aend);
+
+	long long time_diff = (aend.time - astart.time)*1000+aend.millitm - astart.millitm;
+	kdDebug() << "Total:" << (float(time_diff)/1000) << endl;
+	quit();
+}
+
+int main(int argc, char** argv)
+{
+	TQString style = "keramik";
+	// KApplication app(argc, argv);
+	KAboutData about("decobenchmark", "DecoBenchmark", "0.1", "twin decoration performance tester...", KAboutData::License_LGPL, "(C) 2005 Sandro Giessl");
+	KCmdLineArgs::init(argc, argv, &about);
+	KCmdLineArgs::addCmdLineOptions( options );
+
+	KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
+
+	if (args->count() != 3)
+		KCmdLineArgs::usage("Wrong number of arguments!");
+
+	TQString library = TQString(args->arg(0) );
+	TQString t = TQString(args->arg(1) );
+	int count = TQString(args->arg(2) ).toInt();
+
+	Tests test;
+	if (t == "all")
+		test = AllTests;
+	else if (t == "tqrepaint")
+		test = RepaintTest;
+	else if (t == "caption")
+		test = CaptionTest;
+	else if (t == "resize")
+		test = ResizeTest;
+	else if (t == "recreation")
+		test = RecreationTest;
+	else
+		KCmdLineArgs::usage("Specify a valid test!");
+
+	DecoBenchApplication app(library, test, count);
+
+	TQTimer::singleShot(0, &app, TQT_SLOT(executeTest()));
+	app.exec();
+}
+#include "main.moc"
+
+// kate: space-indent off; tab-width 4;
diff --git a/twin/tools/decobenchmark/main.h b/twin/tools/decobenchmark/main.h
new file mode 100644
index 000000000..65c0c78ae
--- /dev/null
+++ b/twin/tools/decobenchmark/main.h
@@ -0,0 +1,51 @@
+/*
+ *
+ * Copyright (c) 2005 Sandro Giessl <sandro@giessl.com>
+ * Copyright (c) 2005 Luciano Montanaro <mikelima@cirulla.net>
+ *
+ *  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, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef BENCH_MAIN_H
+#define BENCH_MAIN_H
+
+enum Tests {
+	AllTests,
+	RepaintTest,
+	CaptionTest,
+	ResizeTest,
+	RecreationTest
+};
+
+class DecoBenchApplication : public KApplication
+{
+	Q_OBJECT
+public:
+	DecoBenchApplication(const TQString &library, Tests tests, int count);
+	~DecoBenchApplication();
+
+public slots:
+	void executeTest();
+
+private:
+	KDecorationPreview *preview;
+	KDecorationPlugins *plugins;
+	Tests m_tests;
+	int m_count;
+};
+
+#endif // BENCH_MAIN_H
+
+// kate: space-indent off; tab-width 4;
diff --git a/twin/tools/decobenchmark/preview.cpp b/twin/tools/decobenchmark/preview.cpp
new file mode 100644
index 000000000..ec870abe5
--- /dev/null
+++ b/twin/tools/decobenchmark/preview.cpp
@@ -0,0 +1,412 @@
+/*
+ *
+ * Copyright (c) 2003 Lubos Lunak <l.lunak@kde.org>
+ *
+ *  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, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "preview.h"
+
+#include <kdebug.h>
+
+#include <kapplication.h>
+#include <klocale.h>
+#include <kconfig.h>
+#include <kglobal.h>
+#include <tqlabel.h>
+#include <tqstyle.h>
+#include <kiconloader.h>
+
+#include <X11/Xlib.h>
+#include <X11/extensions/shape.h>
+
+#include <kdecorationfactory.h>
+#include <kdecoration_plugins_p.h>
+
+// FRAME the preview doesn't update to reflect the changes done in the kcm
+
+KDecorationPreview::KDecorationPreview( KDecorationPlugins* plugin, TQWidget* parent, const char* name )
+    :   TQWidget( parent, name ),
+    m_plugin(plugin)
+{
+    options = new KDecorationPreviewOptions;
+
+    bridge = new KDecorationPreviewBridge( this, true, "Deco Benchmark" );
+
+    deco = 0;
+
+    setFixedSize( 600, 500 );
+
+    positionPreviews();
+}
+
+KDecorationPreview::~KDecorationPreview()
+{
+    delete deco;
+    delete bridge;
+    delete options;
+}
+
+void KDecorationPreview::performRepaintTest(int n)
+{
+    kdDebug() << "start " << n << " repaints..." << endl;
+    bridge->setCaption("Deco Benchmark");
+    deco->captionChange();
+    positionPreviews(0);
+    for (int i = 0; i < n; ++i) {
+        deco->widget()->tqrepaint();
+        kapp->processEvents();
+    }
+}
+
+void KDecorationPreview::performCaptionTest(int n)
+{
+    kdDebug() << "start " << n << " caption changes..." << endl;
+    TQString caption = "Deco Benchmark %1";
+    positionPreviews(0);
+    for (int i = 0; i < n; ++i) {
+        bridge->setCaption(caption.arg(i) );
+        deco->captionChange();
+        deco->widget()->tqrepaint();
+        kapp->processEvents();
+    }
+}
+
+void KDecorationPreview::performResizeTest(int n)
+{
+    kdDebug() << "start " << n << " resizes..." << endl;
+    bridge->setCaption("Deco Benchmark");
+    deco->captionChange();
+    for (int i = 0; i < n; ++i) {
+        positionPreviews(i % 200);
+        kapp->processEvents();
+    }
+}
+
+void KDecorationPreview::performRecreationTest(int n)
+{
+    kdDebug() << "start " << n << " resizes..." << endl;
+    bridge->setCaption("Deco Benchmark");
+    deco->captionChange();
+    positionPreviews(0);
+    for (int i = 0; i < n; ++i) {
+        recreateDecoration();
+        kapp->processEvents();
+    }
+}
+
+bool KDecorationPreview::recreateDecoration()
+{
+    delete deco;
+    deco = m_plugin->createDecoration(bridge);
+    deco->init();
+
+    if (!deco)
+        return false;
+
+    positionPreviews();
+    deco->widget()->show();
+
+    return true;
+}
+
+void KDecorationPreview::positionPreviews(int shrink)
+{
+    if ( !deco )
+        return;
+
+    TQSize size = TQSize(width()-2*10-shrink, height()-2*10-shrink)/*.expandedTo(deco->tqminimumSize()*/;
+
+    TQRect geometry(TQPoint(10, 10), size);
+    deco->widget()->setGeometry(geometry);
+}
+
+void KDecorationPreview::setPreviewMask( const TQRegion& reg, int mode )
+{
+    TQWidget *widget = deco->widget();
+
+    // FRAME duped from client.cpp
+    if( mode == Unsorted )
+        {
+        XShapeCombineRegion( qt_xdisplay(), widget->winId(), ShapeBounding, 0, 0,
+            reg.handle(), ShapeSet );
+        }
+    else
+        {
+        TQMemArray< TQRect > rects = reg.rects();
+        XRectangle* xrects = new XRectangle[ rects.count() ];
+        for( unsigned int i = 0;
+             i < rects.count();
+             ++i )
+            {
+            xrects[ i ].x = rects[ i ].x();
+            xrects[ i ].y = rects[ i ].y();
+            xrects[ i ].width = rects[ i ].width();
+            xrects[ i ].height = rects[ i ].height();
+            }
+        XShapeCombineRectangles( qt_xdisplay(), widget->winId(), ShapeBounding, 0, 0,
+	    xrects, rects.count(), ShapeSet, mode );
+        delete[] xrects;
+        }
+}
+
+TQRect KDecorationPreview::windowGeometry( bool active ) const
+{
+    TQWidget *widget = deco->widget();
+    return widget->geometry();
+}
+
+TQRegion KDecorationPreview::unobscuredRegion( bool active, const TQRegion& r ) const
+{
+        return r;
+}
+
+KDecorationPreviewBridge::KDecorationPreviewBridge( KDecorationPreview* p, bool a, const TQString &c )
+    :   preview( p ), active( a ), m_caption( c )
+{
+}
+
+void KDecorationPreviewBridge::setCaption(const TQString &c)
+{
+    m_caption = c;
+}
+
+TQWidget* KDecorationPreviewBridge::initialParentWidget() const
+    {
+    return preview;
+    }
+
+Qt::WFlags KDecorationPreviewBridge::initialWFlags() const
+    {
+    return 0;
+    }
+
+bool KDecorationPreviewBridge::isActive() const
+    {
+    return active;
+    }
+
+bool KDecorationPreviewBridge::isCloseable() const
+    {
+    return true;
+    }
+
+bool KDecorationPreviewBridge::isMaximizable() const
+    {
+    return true;
+    }
+
+KDecoration::MaximizeMode KDecorationPreviewBridge::maximizeMode() const
+    {
+    return KDecoration::MaximizeRestore;
+    }
+
+bool KDecorationPreviewBridge::isMinimizable() const
+    {
+    return true;
+    }
+
+bool KDecorationPreviewBridge::providesContextHelp() const
+    {
+    return true;
+    }
+
+int KDecorationPreviewBridge::desktop() const
+    {
+    return 1;
+    }
+
+bool KDecorationPreviewBridge::isModal() const
+    {
+    return false;
+    }
+
+bool KDecorationPreviewBridge::isShadeable() const
+    {
+    return true;
+    }
+
+bool KDecorationPreviewBridge::isShade() const
+    {
+    return false;
+    }
+
+bool KDecorationPreviewBridge::isSetShade() const
+    {
+    return false;
+    }
+
+bool KDecorationPreviewBridge::keepAbove() const
+    {
+    return false;
+    }
+
+bool KDecorationPreviewBridge::keepBelow() const
+    {
+    return false;
+    }
+
+bool KDecorationPreviewBridge::isMovable() const
+    {
+    return true;
+    }
+
+bool KDecorationPreviewBridge::isResizable() const
+    {
+    return true;
+    }
+
+NET::WindowType KDecorationPreviewBridge::windowType( unsigned long ) const
+    {
+    return NET::Normal;
+    }
+
+TQIconSet KDecorationPreviewBridge::icon() const
+    {
+    return SmallIconSet( "xapp" );
+    }
+
+TQString KDecorationPreviewBridge::caption() const
+{
+    return m_caption;
+}
+
+void KDecorationPreviewBridge::processMousePressEvent( TQMouseEvent* )
+    {
+    }
+
+void KDecorationPreviewBridge::showWindowMenu( const TQRect &)
+    {
+    }
+
+void KDecorationPreviewBridge::showWindowMenu( TQPoint )
+    {
+    }
+
+void KDecorationPreviewBridge::performWindowOperation( WindowOperation )
+    {
+    }
+
+void KDecorationPreviewBridge::setMask( const TQRegion& reg, int mode )
+    {
+    preview->setPreviewMask( reg, mode );
+    }
+
+bool KDecorationPreviewBridge::isPreview() const
+    {
+    return false;
+    }
+
+TQRect KDecorationPreviewBridge::geometry() const
+    {
+    return preview->windowGeometry( active );
+    }
+
+TQRect KDecorationPreviewBridge::iconGeometry() const
+    {
+    return TQRect();
+    }
+
+TQRegion KDecorationPreviewBridge::unobscuredRegion( const TQRegion& r ) const
+    {
+    return preview->unobscuredRegion( active, r );
+    }
+
+TQWidget* KDecorationPreviewBridge::workspaceWidget() const
+    {
+    return preview;
+    }
+
+WId KDecorationPreviewBridge::windowId() const
+    {
+    return 0; // no decorated window
+    }
+
+void KDecorationPreviewBridge::closeWindow()
+    {
+    }
+
+void KDecorationPreviewBridge::maximize( MaximizeMode )
+    {
+    }
+
+void KDecorationPreviewBridge::minimize()
+    {
+    }
+
+void KDecorationPreviewBridge::showContextHelp()
+    {
+    }
+
+void KDecorationPreviewBridge::setDesktop( int )
+    {
+    }
+
+void KDecorationPreviewBridge::titlebarDblClickOperation()
+    {
+    }
+
+void KDecorationPreviewBridge::setShade( bool )
+    {
+    }
+
+void KDecorationPreviewBridge::setKeepAbove( bool )
+    {
+    }
+
+void KDecorationPreviewBridge::setKeepBelow( bool )
+    {
+    }
+
+int KDecorationPreviewBridge::currentDesktop() const
+    {
+    return 1;
+    }
+
+void KDecorationPreviewBridge::helperShowHide( bool )
+    {
+    }
+
+void KDecorationPreviewBridge::grabXServer( bool )
+    {
+    }
+
+KDecorationPreviewOptions::KDecorationPreviewOptions()
+    {
+    d = new KDecorationOptionsPrivate;
+    d->defaultKWinSettings();
+    updateSettings();
+    }
+
+KDecorationPreviewOptions::~KDecorationPreviewOptions()
+    {
+    delete d;
+    }
+
+unsigned long KDecorationPreviewOptions::updateSettings()
+{
+    KConfig cfg( "twinrc", true );
+    unsigned long changed = 0;
+    changed |= d->updateKWinSettings( &cfg );
+
+    return changed;
+}
+
+bool KDecorationPreviewPlugins::provides( Requirement )
+    {
+    return false;
+    }
+
+// #include "preview.moc"
diff --git a/twin/tools/decobenchmark/preview.h b/twin/tools/decobenchmark/preview.h
new file mode 100644
index 000000000..9f2445036
--- /dev/null
+++ b/twin/tools/decobenchmark/preview.h
@@ -0,0 +1,137 @@
+/*
+ *
+ * Copyright (c) 2003 Lubos Lunak <l.lunak@kde.org>
+ *
+ *  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, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KWINDECORATION_PREVIEW_H
+#define KWINDECORATION_PREVIEW_H
+
+#include <tqwidget.h>
+#include <kdecoration_p.h>
+#include <kdecoration_plugins_p.h>
+
+class TQLabel;
+
+class KDecorationPreviewBridge;
+class KDecorationPreviewOptions;
+
+class KDecorationPreview
+    : public QWidget
+    {
+    public:
+        KDecorationPreview( KDecorationPlugins* plugin, TQWidget* parent = NULL, const char* name = NULL );
+        virtual ~KDecorationPreview();
+
+        void performRepaintTest(int n);
+        void performCaptionTest(int n);
+        void performResizeTest(int n);
+        void performRecreationTest(int n);
+
+        bool recreateDecoration();
+        void setPreviewMask( const TQRegion&, int );
+        TQRegion unobscuredRegion( bool, const TQRegion& ) const;
+        TQRect windowGeometry( bool ) const;
+    private:
+        void positionPreviews(int shrink = 0);
+        KDecorationPreviewOptions* options;
+        KDecorationPreviewBridge* bridge;
+        KDecoration* deco;
+        KDecorationPlugins* m_plugin;
+    };
+
+class KDecorationPreviewBridge
+    : public KDecorationBridge
+    {
+    public:
+        KDecorationPreviewBridge( KDecorationPreview* preview, bool active, const TQString &caption );
+
+        void setCaption(const TQString &caption);
+
+    	virtual bool isActive() const;
+	virtual bool isCloseable() const;
+	virtual bool isMaximizable() const;
+	virtual MaximizeMode maximizeMode() const;
+	virtual bool isMinimizable() const;
+        virtual bool providesContextHelp() const;
+        virtual int desktop() const;
+        virtual bool isModal() const;
+        virtual bool isShadeable() const;
+        virtual bool isShade() const;
+        virtual bool isSetShade() const;
+        virtual bool keepAbove() const;
+        virtual bool keepBelow() const;
+        virtual bool isMovable() const;
+        virtual bool isResizable() const;
+        virtual NET::WindowType windowType( unsigned long supported_types ) const;
+	virtual TQIconSet icon() const;
+	virtual TQString caption() const;
+	virtual void processMousePressEvent( TQMouseEvent* );
+	virtual void showWindowMenu( const TQRect &);
+	virtual void showWindowMenu( TQPoint );
+	virtual void performWindowOperation( WindowOperation );
+        virtual void setMask( const TQRegion&, int );
+        virtual bool isPreview() const;
+        virtual TQRect geometry() const;
+        virtual TQRect iconGeometry() const;
+        virtual TQRegion unobscuredRegion( const TQRegion& r ) const;
+        virtual TQWidget* workspaceWidget() const;
+        virtual WId windowId() const;
+	virtual void closeWindow();
+	virtual void maximize( MaximizeMode mode );
+	virtual void minimize();
+        virtual void showContextHelp();
+        virtual void setDesktop( int desktop );
+        virtual void titlebarDblClickOperation();
+        virtual void setShade( bool set );
+        virtual void setKeepAbove( bool );
+        virtual void setKeepBelow( bool );
+        virtual int currentDesktop() const;
+        virtual TQWidget* initialParentWidget() const;
+        virtual Qt::WFlags initialWFlags() const;
+        virtual void helperShowHide( bool show );
+        virtual void grabXServer( bool grab );
+    private:
+        KDecorationPreview* preview;
+        bool active;
+        TQString m_caption;
+    };
+
+class KDecorationPreviewOptions
+    : public KDecorationOptions
+    {
+    public:
+        KDecorationPreviewOptions();
+        virtual ~KDecorationPreviewOptions();
+        virtual unsigned long updateSettings();
+
+    private:
+    };
+
+class KDecorationPreviewPlugins
+    : public KDecorationPlugins
+    {
+    public:
+        KDecorationPreviewPlugins( KConfig* cfg );
+        virtual bool provides( Requirement );
+    };
+
+inline KDecorationPreviewPlugins::KDecorationPreviewPlugins( KConfig* cfg )
+    : KDecorationPlugins( cfg )
+    {
+    }
+
+#endif
diff --git a/twin/tools/test_gravity.cpp b/twin/tools/test_gravity.cpp
new file mode 100644
index 000000000..618023b5f
--- /dev/null
+++ b/twin/tools/test_gravity.cpp
@@ -0,0 +1,99 @@
+// tests for window gravity
+
+#include <iostream>
+#include <stdlib.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+using namespace std;
+
+const int gravities[ 10 ] =
+    {
+    NorthWestGravity, 
+    NorthGravity,  
+    NorthEastGravity,
+    WestGravity,      
+    CenterGravity, 
+    EastGravity,
+    SouthWestGravity,
+    SouthGravity,
+    SouthEastGravity,
+    StaticGravity
+    };
+    
+const char* const gravity_names[ 10 ] =
+    {
+    "NW", "N", "NE", "W", "C", "E", "SW", "S", "SE", "ST"
+    };
+    
+Display* dpy = NULL;
+
+int get_gravity( const char* name )
+    {
+    for( int i = 0;
+         i < 10;
+         ++i )
+        if( strcmp( name, gravity_names[ i ] ) == 0 )
+            return gravities[ i ];
+    cerr << "Wrong gravity name" << endl;
+    exit( 1 );
+    }
+
+void test( const char* gravity )
+    {
+    XSetWindowAttributes attrs;
+    XSizeHints hints;
+    hints.flags = USPosition | PWinGravity;
+    hints.win_gravity = get_gravity( gravity );
+    Window w = XCreateWindow( dpy, DefaultRootWindow( dpy ), 100, 100, 200, 100, 0, CopyFromParent, CopyFromParent,
+        CopyFromParent, 0, &attrs );
+    XSetWMNormalHints( dpy, w, &hints );
+    XSelectInput( dpy, w, StructureNotifyMask | ButtonPressMask );
+    XMapWindow( dpy, w );
+    for(;;)
+        {
+        XEvent ev;
+        XNextEvent( dpy, &ev );
+        if( ev.type == ConfigureNotify )
+            {
+            cout << "CONFIGURENOTIFY:" << ev.xany.send_event << ":" << ev.xconfigure.x << ":" << ev.xconfigure.y
+                << ":" << ev.xconfigure.width << ":" << ev.xconfigure.height << endl;
+            Window root, child;
+            int x, x_local, y, y_local;
+            unsigned int width, height, border, depth;
+            XGetGeometry( dpy, w, &root, &x_local, &y_local, &width, &height, &border, &depth );
+            XTranslateCoordinates( dpy, w, root, 0, 0, &x, &y, &child );
+            cout << "GEOMETRY:" << x << ":" << y << ":" << width << ":" << height << ":(" << x_local << ":" << y_local << ")" << endl;
+            }
+        else if( ev.type == ButtonPress )
+            {
+            if( ev.xbutton.button == Button1 ) // move
+                {
+                cout << "MOVE" << endl;
+                XMoveWindow( dpy, w, 100, 100 );
+                }
+            else if( ev.xbutton.button == Button2 ) // resize
+                {
+                cout << "RESIZE" << endl;
+                XResizeWindow( dpy, w, 200, 100 );
+                }
+            else if( ev.xbutton.button == Button3 ) // move and resize
+                {
+                cout << "MOVERESIZE" << endl;
+                XMoveResizeWindow( dpy, w, 100, 100, 200, 100 );
+                }
+            }
+        }
+    }
+
+int main( int argc, char* argv[] )
+    {
+    dpy = XOpenDisplay( NULL );
+    if( argc != 2 )
+        {
+        cerr << "specify gravity" << endl;
+        exit( 1 );
+        }
+    test( argv[ 1 ] );
+    XCloseDisplay( dpy );
+    }
diff --git a/twin/tools/xreply/Makefile b/twin/tools/xreply/Makefile
new file mode 100644
index 000000000..af06929d5
--- /dev/null
+++ b/twin/tools/xreply/Makefile
@@ -0,0 +1,2 @@
+all:
+	gcc -O2 -Wall -shared -fPIC -o libxreply.so xreply.c
diff --git a/twin/tools/xreply/xreply.c b/twin/tools/xreply/xreply.c
new file mode 100644
index 000000000..ecdf6ebc3
--- /dev/null
+++ b/twin/tools/xreply/xreply.c
@@ -0,0 +1,197 @@
+/*
+
+ LD_PRELOAD library that gives statistic on number of roundtrips in an application.
+
+ $XREPLY_BACKTRACE defines whether and how backtraces will be printed for every
+ roundtrip. If not set, only total number of roundtrips is printed after the process
+ exits. If set to a number, backtrace for every roundtrip will be printed, and the
+ backtraces will be as deep as the given number. If set to C<number> (e.g. C10),
+ the backtraces will be "compressed" - every backtrace will be printed only once
+ after the process exits, together with number of times it occured.
+
+*/
+
+#define _GNU_SOURCE
+#include <dlfcn.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <execinfo.h>
+#include <assert.h>
+#include <X11/Xlibint.h>
+
+/* Since these symbols are weak, the apps can provide their own, and therefore
+   e.g. temporarily suspend counting of roundtrips. At least theoretically,
+   I haven't really tried it.
+*/
+__attribute((weak)) long ___xreply_reply_count = 0;
+__attribute((weak)) int ___xreply_reply_enabled = 1;
+
+#define MAX_BACKTRACES 1024
+
+extern long ___xreply_reply_count;
+extern int ___xreply_reply_enabled;
+
+typedef Status (*xreply_ptr_t)(Display*,xReply*,int,Bool);
+
+static xreply_ptr_t xreply_ptr = NULL;
+static int xreply_backtrace_set = 0;
+static int xreply_backtrace_type = 0;
+
+struct xreply_struct
+    {
+    char* key;
+    char* text;
+    int count;
+    };
+static struct xreply_struct backtraces[ MAX_BACKTRACES ];
+static int backtraces_size = 0;
+
+static int xreply_compare( const void* left, const void* right )
+    {
+    int left_count = ((struct xreply_struct*)left)->count;
+    int right_count = ((struct xreply_struct*)right)->count;
+    return right_count - left_count;
+    }
+
+static void xreply_print(void)
+    {
+    char tmp[ 1024 ];
+    int fd;
+    fd = open( "/proc/self/cmdline", O_RDONLY );
+    if( fd >= 0 )
+        {
+        read( fd, tmp, 1024 );
+        tmp[ 1023 ] = '\0';
+        close( fd );
+        }
+    fprintf( stderr, "XREPLY (%d : %s): %ld\n", getpid(), tmp, ___xreply_reply_count );
+    if( xreply_backtrace_type < 0 )
+        {
+        int i;
+        qsort( backtraces, backtraces_size, sizeof( struct xreply_struct ), xreply_compare );
+        for( i = 0;
+             i < backtraces_size;
+             ++i )
+            fprintf( stderr, "%d:%s\n\n", backtraces[ i ].count, backtraces[ i ].text );
+        }
+    }
+
+static void xreply_backtrace()
+    {
+    void* trace[256];
+    int n = backtrace(trace, 256);
+    char** strings = backtrace_symbols (trace, n);
+
+    if( xreply_backtrace_type > 0 )
+        {
+        fprintf( stderr, "%ld [\n", ___xreply_reply_count );
+        if( n > xreply_backtrace_type )
+            n = xreply_backtrace_type;
+        int i;
+        for( i = 0;
+             i < n;
+             ++i )
+            fprintf( stderr, "%d: %s\n", i, strings[ i ] );
+        fprintf( stderr, "]\n" );
+        }
+    else
+        {
+        char stack[ 256 * 20 ];
+        int pos = 0;
+        int i;
+        stack[ 0 ] = '\0';
+        if( n > -xreply_backtrace_type )
+            n = -xreply_backtrace_type;
+        for( i = 0;
+             i < n;
+             ++i )
+            {
+            const char* start = strrchr( strings[ i ], '[' );
+            if( start == NULL )
+                assert( !"No [ in address." );
+            long addr;
+            if( sscanf( start + 1, "0x%lx", &addr ) != 1 )
+                assert( !"Failed to parse address." );
+            if( sizeof( void* ) == 4 )
+                {
+                sprintf( stack + pos, "0x%8lx", addr );
+                pos += 10;
+                }
+            else if( sizeof( void* ) == 8 )
+                {
+                sprintf( stack + pos, "0x%16lx", addr );
+                pos += 18;
+                }
+            else
+                assert( !"Unknown sizeof( void* )." );
+            }
+        for( i = 0;
+             i < backtraces_size;
+             ++i )
+            if( strcmp( backtraces[ i ].key, stack ) == 0 )
+                {
+                ++backtraces[ i ].count;
+                break;
+                }
+        if( i == backtraces_size )
+            {
+            int stack_text_size = 10;
+            char* stack_text;
+            char* stack_text_pos;
+            for( i = 0;
+                 i < n;
+                 ++i )
+                stack_text_size += strlen( strings[ i ] ) + 5;
+            stack_text = stack_text_pos = malloc( stack_text_size );
+            for( i = 0;
+                 i < n;
+                 ++i )
+                {
+                stack_text_pos = stpcpy( stack_text_pos, "\n" );
+                stack_text_pos = stpcpy( stack_text_pos, strings[ i ] );
+                }
+            backtraces[ backtraces_size ].key = strdup( stack );
+            backtraces[ backtraces_size ].text = stack_text;
+            backtraces[ backtraces_size ].count = 1;
+            ++backtraces_size;
+            if( backtraces_size >= MAX_BACKTRACES )
+                assert( !"MAX_BACKTRACES reached." );
+            }
+        }
+    free (strings);
+    }
+
+Status
+_XReply (dpy, rep, extra, discard)
+    register Display *dpy;
+    register xReply *rep;
+    int extra;		/* number of 32-bit words expected after the reply */
+    Bool discard;	/* should I discard data following "extra" words? */
+    {
+    if( ___xreply_reply_enabled )
+        ++___xreply_reply_count;
+    if( xreply_backtrace_set == 0 )
+        {
+        if( getenv( "XREPLY_BACKTRACE" ) != NULL )
+            { // C<number> - compress backtraces, saved as negative value in xreply_backtrace_type
+            if( getenv( "XREPLY_BACKTRACE" )[ 0 ] == 'C' )
+                xreply_backtrace_type = -atoi( getenv( "XREPLY_BACKTRACE" ) + 1 );
+            else // <number> - print the backtrace every time
+                xreply_backtrace_type = atoi( getenv( "XREPLY_BACKTRACE" ));
+            }
+        else
+            xreply_backtrace_type = 0;
+        }
+    if( xreply_backtrace_type != 0 )
+        xreply_backtrace();
+    if( xreply_ptr == NULL )
+        {
+        xreply_ptr = (xreply_ptr_t)dlsym( RTLD_NEXT, "_XReply" );
+        if( xreply_ptr == NULL )
+            assert( !"dlsym() failed." );
+        atexit( xreply_print );
+        }
+    return xreply_ptr( dpy, rep, extra, discard );
+    }