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147 lines
4.7 KiB
147 lines
4.7 KiB
// Copyright (C) 2003 Dominique Devriese <devriese@kde.org>
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (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, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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// 02110-1301, USA.
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#ifndef KIG_OBJECTS_OBJECT_DRAWER_H
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#define KIG_OBJECTS_OBJECT_DRAWER_H
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#include <tqcolor.h>
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#include <tqnamespace.h>
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class ObjectImp;
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class KigPainter;
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class Coordinate;
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class KigWidget;
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class Rect;
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/**
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* A class holding some information about how a certain object is
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* drawn on the window.
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*
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* An ObjectDrawer is used by an ObjectHolder to keep information
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* about how to draw an ObjectImp on the window. It is really nothing
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* more than a struct with some convenience methods. It does not have
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* any virtual methods, or have any complex semantics. It keeps
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* information like the thickness of an object, its color, and whether
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* or not it is hidden.
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*
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* \note The default width of an object depends on its type. E.g. A
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* point is by default drawn at width 5, a line at width 1.
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* Therefore, there is a special width -1, which means "the default
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* width for this object".
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*/
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class ObjectDrawer
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{
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TQColor mcolor;
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bool mshown;
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int mwidth;
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Qt::PenStyle mstyle;
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int mpointstyle;
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public:
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/**
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* Construct a new ObjectDrawer with a default color ( TQt::blue ),
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* width ( -1 ), shown state ( true ), PenStyle ( TQt::SolidLine ),
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* and pointstyle ( 0 )
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*/
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ObjectDrawer();
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ObjectDrawer( const TQColor& color, int width = -1, bool shown = true, Qt::PenStyle = Qt::SolidLine, int pointStyle = 0 );
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/**
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* Draw the object \p imp on kigpainter \p p . If \p selected is true, it is
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* drawn in red, otherwise in its normal color.
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*/
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void draw( const ObjectImp& imp, KigPainter& p, bool selected ) const;
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/**
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* returns whether the object \p imp contains coordinate \p p . This is
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* dependent on whether it is shown ( when it will never contain
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* anything ), and on its width..
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*/
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bool tqcontains( const ObjectImp& imp, const Coordinate& pt, const KigWidget& w, bool nv = false ) const;
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/**
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* returns whether the object \p imp is in the rectangle \p r . This is
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* dependent on whether it is shown and on its width..
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*/
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bool inRect( const ObjectImp& imp, const Rect& r, const KigWidget& w ) const;
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/**
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* returns whether the object this ObjectDrawer is responsible for
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* will be drawn or not..
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*/
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bool shown() const;
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/**
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* returns the color that the object will be drawn in
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*/
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TQColor color() const;
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/**
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* return the width of the object
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*/
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int width() const;
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/**
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* return PenStyle for all objects except points
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*/
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Qt::PenStyle style() const;
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/**
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* return pointStyle for points
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*/
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int pointStyle() const;
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/**
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* return pointStyle trasnformed in a string
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*/
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TQString pointStyleToString() const;
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/**
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* return style trasnformed in a string
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*/
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TQString styleToString() const;
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/**
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* returns a new ObjectDrawer that is identical to this one.. except
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* that the shown state is set to \p s ..
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*/
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ObjectDrawer* getCopyShown( bool s ) const;
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/**
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* returns a new ObjectDrawer that is identical to this one.. except
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* that the color is set to \p c ..
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*/
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ObjectDrawer* getCopyColor( const TQColor& c ) const;
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/**
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* returns a new ObjectDrawer that is identical to this one.. except
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* that the width is set to \p w ..
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*/
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ObjectDrawer* getCopyWidth( int w ) const;
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/**
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* returns a new ObjectDrawer that is identical to this one.. except
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* that the PenStyle state is set to \p s ..
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*/
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ObjectDrawer* getCopyStyle( Qt::PenStyle s ) const;
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/**
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* returns a new ObjectDrawer that is identical to this one.. except
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* that the pointStyle state is set to \p p ..
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*/
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ObjectDrawer* getCopyPointStyle( int p ) const;
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/**
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* Note that this returns a valid point style in every case, even if
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* the given \p style string is unknown. In that case it returns a
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* default value.
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*/
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static int pointStyleFromString( const TQString& style );
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/**
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* Note that this returns a valid style in every case, even if the
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* given \p style string is unknown. In that case it returns a default
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* value.
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*/
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static Qt::PenStyle styleFromString( const TQString& style );
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};
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#endif
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