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// Copyright (C) 2003 Dominique Devriese <devriese@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 KIG_OBJECTS_OBJECT_DRAWER_H
#define KIG_OBJECTS_OBJECT_DRAWER_H
#include <tqcolor.h>
#include <tqnamespace.h>
class ObjectImp;
class KigPainter;
class Coordinate;
class KigWidget;
class Rect;
/**
* A class holding some information about how a certain object is
* drawn on the window.
*
* An ObjectDrawer is used by an ObjectHolder to keep information
* about how to draw an ObjectImp on the window. It is really nothing
* more than a struct with some convenience methods. It does not have
* any virtual methods, or have any complex semantics. It keeps
* information like the thickness of an object, its color, and whether
* or not it is hidden.
*
* \note The default width of an object depends on its type. E.g. A
* point is by default drawn at width 5, a line at width 1.
* Therefore, there is a special width -1, which means "the default
* width for this object".
*/
class ObjectDrawer
{
TQColor mcolor;
bool mshown;
int mwidth;
TQt::PenStyle mstyle;
int mpointstyle;
public:
/**
* Construct a new ObjectDrawer with a default color ( TQt::blue ),
* width ( -1 ), shown state ( true ), PenStyle ( TQt::SolidLine ),
* and pointstyle ( 0 )
*/
ObjectDrawer();
ObjectDrawer( const TQColor& color, int width = -1, bool shown = true, TQt::PenStyle = TQt::SolidLine, int pointStyle = 0 );
/**
* Draw the object \p imp on kigpainter \p p . If \p selected is true, it is
* drawn in red, otherwise in its normal color.
*/
void draw( const ObjectImp& imp, KigPainter& p, bool selected ) const;
/**
* returns whether the object \p imp contains coordinate \p p . This is
* dependent on whether it is shown ( when it will never contain
* anything ), and on its width..
*/
bool contains( const ObjectImp& imp, const Coordinate& pt, const KigWidget& w, bool nv = false ) const;
/**
* returns whether the object \p imp is in the rectangle \p r . This is
* dependent on whether it is shown and on its width..
*/
bool inRect( const ObjectImp& imp, const Rect& r, const KigWidget& w ) const;
/**
* returns whether the object this ObjectDrawer is responsible for
* will be drawn or not..
*/
bool shown() const;
/**
* returns the color that the object will be drawn in
*/
TQColor color() const;
/**
* return the width of the object
*/
int width() const;
/**
* return PenStyle for all objects except points
*/
TQt::PenStyle style() const;
/**
* return pointStyle for points
*/
int pointStyle() const;
/**
* return pointStyle trasnformed in a string
*/
TQString pointStyleToString() const;
/**
* return style trasnformed in a string
*/
TQString styleToString() const;
/**
* returns a new ObjectDrawer that is identical to this one.. except
* that the shown state is set to \p s ..
*/
ObjectDrawer* getCopyShown( bool s ) const;
/**
* returns a new ObjectDrawer that is identical to this one.. except
* that the color is set to \p c ..
*/
ObjectDrawer* getCopyColor( const TQColor& c ) const;
/**
* returns a new ObjectDrawer that is identical to this one.. except
* that the width is set to \p w ..
*/
ObjectDrawer* getCopyWidth( int w ) const;
/**
* returns a new ObjectDrawer that is identical to this one.. except
* that the PenStyle state is set to \p s ..
*/
ObjectDrawer* getCopyStyle( TQt::PenStyle s ) const;
/**
* returns a new ObjectDrawer that is identical to this one.. except
* that the pointStyle state is set to \p p ..
*/
ObjectDrawer* getCopyPointStyle( int p ) const;
/**
* Note that this returns a valid point style in every case, even if
* the given \p style string is unknown. In that case it returns a
* default value.
*/
static int pointStyleFromString( const TQString& style );
/**
* Note that this returns a valid style in every case, even if the
* given \p style string is unknown. In that case it returns a default
* value.
*/
static TQt::PenStyle styleFromString( const TQString& style );
};
#endif
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