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/*
*  Aquamarine the KDE window decorator
*
*  Copyright (c) 2006 Dennis Kasprzyk <onestone@beryl-project.org>
*  Copyright (c) 2006 Volker Krause <vkrause@kde.org>
*  Copyright (c) 2006 David Reveman <davidr@novell.com>
*
*  Uses code of:
*      KWin window manager (www.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 _WINDOW_H
#define _WINDOW_H

#include <kdecoration_p.h>

#include <qpixmap.h>
#include <qwidget.h>

#include <X11/Xlib.h>
#include <X11/extensions/Xdamage.h>


#include <beryl-decoration.h>

#include "utils.h"
#include "options.h"


class KProcess;
class KDecoration;
class QPopupMenu;

namespace Aquamarine
{
class Window:public QWidget, public KDecorationBridge {
	Q_OBJECT public:

	enum Type
	{
		Normal,
		Switcher,
		Default,
		DefaultActive
	};

	public:
		Window (QWidget *parent, WId clientId, WId frame, Type type,
			int x = 0, int y = 0, int w = 1, int h = 1);
		~Window (void);

		virtual bool isActive (void) const;
		virtual bool isCloseable (void) const;
		virtual bool isMaximizable (void) const;
		virtual MaximizeMode maximizeMode (void) const;
		virtual bool isMinimizable (void) const;
		virtual bool providesContextHelp (void) const;
		virtual int desktop (void) const;
		virtual bool isModal (void) const;
		virtual bool isShadeable (void) const;
		virtual bool isShade (void) const;
		virtual bool isSetShade (void) const;
		virtual bool keepAbove (void) const;
		virtual bool keepBelow (void) const;
		virtual bool isMovable (void) const;
		virtual bool isResizable (void) const;
		virtual NET::WindowType
			windowType (unsigned long supported_types) const;
		virtual QIconSet icon (void) const;
		virtual QString caption (void) const;
		virtual void processMousePressEvent (QMouseEvent *);
		virtual void showWindowMenu (const QRect &);
		virtual void showWindowMenu (QPoint);
		virtual void performWindowOperation (WindowOperation);
		virtual void setMask (const QRegion &, int);
		virtual bool isPreview (void) const;
		virtual QRect geometry (void) const;
		virtual QRect iconGeometry (void) const;
		virtual QRegion unobscuredRegion (const QRegion & r) const;
		virtual QWidget *workspaceWidget (void) const;
		virtual WId windowId (void) const;
		virtual void closeWindow (void);
		virtual void maximize (MaximizeMode mode);
		virtual void minimize (void);
		virtual void showContextHelp (void);
		virtual void setDesktop (int desktop);
		virtual void titlebarDblClickOperation (void);
		virtual void titlebarMouseWheelOperation (int delta);
		virtual void setShade (bool set);
		virtual void setKeepAbove (bool);
		virtual void setKeepBelow (bool);
		virtual int currentDesktop (void) const;
		virtual QWidget *initialParentWidget (void) const;
		virtual Qt::WFlags initialWFlags (void) const;
		virtual void helperShowHide (bool);
		virtual void grabXServer (bool grab);

		void handleActiveChange (void);
		void updateFrame (WId frame);
		void updateWindowGeometry (void);
		void updateCursor (QPoint pos);
		void updateSelected (WId selected);
		WId frameId (void) const
		{
			return mFrame;
		}
		KDecoration *decoration (void) const
		{
			return mDecor;
		}
		QWidget *activeChild (void) const
		{
			return mActiveChild;
		}
		void setActiveChild (QWidget * child)
		{
			mActiveChild = child;
		}
		QRegion *getShape (void)
		{
			if (mShapeSet)
			return &mShape;

			return NULL;
		}
		void getShapeInfo (bool *horz, bool *vert)
		{
			*horz = mUniqueHorzShape;
			*vert = mUniqueVertShape;
		}
		void moveWindow (QMouseEvent *qme);
		void reloadDecoration (void);
		void updateState (void);
		void updateName (void);
		void updateIcons (void);

		Drawable pixmapId (void) const
		{
			return mPixmap;
		}
		void addDamageRect (int x, int y, int w, int h)
		{
			mDamage += QRegion (x, y, w, h);
		}
		bool handleMap (void);
		bool handleConfigure (void);
		void processDamage (void);
		decor_context_t *context (void)
		{
			return &mContext;
		}
		decor_shadow_t *shadow (void)
		{
			return mShadow;
		}
		QRect clientGeometry (void);
		void showKillProcessDialog (Time timestamp);
		void hideKillProcessDialog (void);

		void updateShadow (void);

		void updateOpacity ()
		{
			mOpacity =
				readPropertyShort (mClientId, Atoms::netWmWindowOpacity, 0xffff);
		}
		void updateBrightness ()
		{
			mBrightness =
				readPropertyShort (mClientId, Atoms::netWmWindowBrightness, 0xffff);
		}
		void updateSaturation ()
		{
			mSaturation =
				readPropertyShort (mClientId, Atoms::netWmWindowSaturation, 0xffff);
		}

	private:
		enum WindowAppearance
		{
			ResetValues,
			ChangeOpacity25,
			ChangeOpacity50,
			ChangeOpacity75,
			ChangeOpacity100,
			ChangeBrightness25,
			ChangeBrightness50,
			ChangeBrightness75,
			ChangeBrightness100,
			ChangeSaturation25,
			ChangeSaturation50,
			ChangeSaturation75,
			ChangeSaturation100
		};

	private:
		void createDecoration (void);

		bool resizeDecoration (bool force = false);
		void updateProperty (void);
		void getWindowProtocols (void);
		void performMouseCommand (Aquamarine::Options::MouseCommand command,
					QMouseEvent		     *qme);
		NET::Direction positionToDirection (int pos);
		Cursor positionToCursor (QPoint pos);
		void rebindPixmap (void);


	private slots:
		void handlePopupActivated (int id);
		void handleDesktopPopupActivated (int id);
		void handlePopupAboutToShow (void);
		void handleProcessKillerExited (void);
		void handleChangeViewport (int id);
		void handleDesktopGeometryChanged ();
		void handleAppearanceChange (int id);


	private:
		Type mType;
		WId mFrame;
		WId mClientId;
		WId mSelectedId;
		QRect mGeometry;
		QString mName;
		QIconSet mIcons;
		decor_extents_t mBorder;
		KDecoration *mDecor;
		QPixmap mTexturePixmap;
		QPixmap mTexturePixmapBuffer;
		Pixmap mPixmap;
		QRegion mDamage;
		WId mDamageId;
		decor_layout_t mLayout;
		decor_context_t mContext;
		decor_shadow_t *mShadow;
		Picture mPicture;
		Picture mTexturePicture;
		Picture mDecorationPicture;
		bool mUpdateProperty;
		bool mShapeSet;
		bool mUniqueHorzShape;
		bool mUniqueVertShape;
		QRegion mShape;
		QWidget *mActiveChild;
		bool mSupportTakeFocus;
		bool mSupportContextHelp;

		QPopupMenu *mPopup;
		QPopupMenu *mAdvancedMenu;
		QPopupMenu *mDesktopMenu;
		QPopupMenu *mViewportMenu;
		QPopupMenu *mAppearanceMenu;
		QPopupMenu *mBrightnessMenu;
		QPopupMenu *mSaturationMenu;
		QPopupMenu *mOpacityMenu;

		unsigned long mState;
		bool mMapped;
		int mPendingMap;
		int mPendingConfigure;
		KProcess *mProcessKiller;

		unsigned short mOpacity;
		unsigned short mBrightness;
		unsigned short mSaturation;
	};
}

#endif