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diff --git a/kchart/kdchart/KDFrame.h b/kchart/kdchart/KDFrame.h new file mode 100644 index 00000000..bbc49155 --- /dev/null +++ b/kchart/kdchart/KDFrame.h @@ -0,0 +1,1167 @@ +/* -*- Mode: C++ -*- + KDChart - a multi-platform charting engine + */ + +/**************************************************************************** + ** Copyright (C) 2001-2003 Klarälvdalens Datakonsult AB. All rights reserved. + ** + ** This file is part of the KDChart library. + ** + ** This file may be distributed and/or modified under the terms of the + ** GNU General Public License version 2 as published by the Free Software + ** Foundation and appearing in the file LICENSE.GPL included in the + ** packaging of this file. + ** + ** Licensees holding valid commercial KDChart licenses may use this file in + ** accordance with the KDChart Commercial License Agreement provided with + ** the Software. + ** + ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE + ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + ** + ** See http://www.klaralvdalens-datakonsult.se/?page=products for + ** information about KDChart Commercial License Agreements. + ** + ** Contact info@klaralvdalens-datakonsult.se if any conditions of this + ** licensing are not clear to you. + ** + **********************************************************************/ +#ifndef __KDFRAME_H__ +#define __KDFRAME_H__ + +#include <qapplication.h> +#include <qfont.h> +#include <qcolor.h> +#include <qpixmap.h> +#include <qpen.h> +#include <qmap.h> +#include <qobject.h> +#include <qtextstream.h> +#include <qdom.h> + +#include <KDFrameProfileSection.h> + + +/** \file KDFrame.h + \brief Header of the KDFrame class providing highly configurable rectangular frame drawing. + + \ifnot v200 + This class is work in progress, at present only single line frame borders + and (scaled/streched) background pictures are available. + See KDChartParams::setSimpleFrame() to learn how to use them. + \else + A frame may consist of an (optional) border and/or an (optional) background. + The border may consist of up to four edges and/or up to four border corners. + + \note Each of the edges and each of the corners may use their own user-definable profile. + + The frame corners ( see types defined in \c CornerStyle ) are set up via setCorner() + + Some commonly used frame profiles (e.g. raised box, sunken panel) are predefined in \c SimpleFrame, see setSimpleFrame(). + To learn how to specify your frame profiles have a look at example code given with setProfile() + \endif + */ + + +/** + \brief The main class of KDFrame. + + KDFrame is made for highly configurable rectangular frame drawing. + + A frame may consist of an (optional) border and/or an (optional) background. + \ifndef v200 + This class is work in progress, at present only single line frame borders + and (scaled/streched) background pictures are available. + See KDChartParams::setSimpleFrame() to learn how to use them. + \else + The border may consist of up to four edges and/or up to four border corners. + + \note Each of the edges and each of the corners may use their own user-definable profile. + + The frame corners ( see types defined in CornerStyle ) are set up via setCorner() + + Some commonly used frame profiles (e.g. raised box, sunken panel) are predefined in SimpleFrame, see setSimpleFrame(). + To learn how to specify your frame profiles have a look at example code given with setProfile() + \endif + */ +class KDCHART_EXPORT KDFrame : public QObject +{ + Q_OBJECT + Q_ENUMS( BackPixmapMode ) + Q_ENUMS( SimpleFrame ) + Q_ENUMS( ProfileName ) + Q_ENUMS( CornerName ) + Q_ENUMS( CornerStyle ) + Q_ENUMS( KDFramePaintSteps ) + +public: + //// GENERAL + + + /** + These are ways how to display a pixmap that might + be painted into the inner area. + + \Note To have a 'tiled' background image do not use a background + pixmap but use a background <b>brush</b> holding this pixmap. + */ + enum BackPixmapMode { PixCentered, PixScaled, PixStretched }; + +public slots: + + /** + Converts the specified background pixmap mode enum to a string + representation. + + \param type the background pixmap mode to convert + \return the string representation of the background pixmap mode enum + */ + static QString backPixmapModeToString( BackPixmapMode type ) { + switch( type ) { + case PixCentered: + return "Centered"; + case PixScaled: + return "Scaled"; + case PixStretched: + return "Stretched"; + } + + return "Stretched"; + } + + + /** + Converts the specified string to a background pixmap mode enum value. + + \param string the string to convert + \return the background pixmap mode enum value + */ + static BackPixmapMode stringToBackPixmapMode( const QString& string ) { + if( string == "Centered" ) + return PixCentered; + else if( string == "Scaled" ) + return PixScaled; + else if( string == "Stretched" ) + return PixStretched; + + return PixStretched; + } + + +public: + + + /** + These simple frames are pre-defined for your convenience + + \li \c FrameFlat a flat rectangular frame + \li \c FrameElegance a flat frame consisting of three lines + \li \c FrameBoxRaized a raised box + \li \c FrameBoxSunken a sunken box + \li \c FramePanelRaized a raised panel + \li \c FramePanelSunken a sunken panel + \li \c FrameSemicircular a raised box with round edges + + \ifnot v200 + All pre-defined frames have normal corners. + \else + All pre-defined frames have normal corners but + of course you may specify differently looking corners by + calling setCorners() (or setCorner(), resp.) after having + called setSimpleFrame() + + \sa setSimpleFrame + \endif + */ + enum SimpleFrame { FrameFlat, FrameElegance, + FrameBoxRaized, FrameBoxSunken, + FramePanelRaized, FramePanelSunken, + FrameSemicircular }; + +public slots: + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Select a pre-defined frame. + This methode is provided for convenience, the same results can be obtained by calling + addProfileSection multiple times specifying the appropriate parameters and finally + setting the corners to \c CornerNormal + + \note When using FrameElegance the midLineWidth value will be ignored since + in this special case the lineValue will indicate the <b>total width</b> of the frame. + FrameElegance frames look best when lineWidth is 16 or the multiple of 16. + + \Note To have a 'tiled' background image do not use a background + pixmap but use a background <b>brush</b> holding this pixmap. + + See setProfile for a short example using this method. + + \param frame one of the values defined for enum \c SimpleFrame + \param lineWidth for FrameFlat and FrameElegance: the complete frame width; + for frames with 2-line edges (FramePanelRaized, FramePanelSunken): the width of each of the lines; + for frames with 3-line edges (FrameBoxRaized, FrameBoxSunken, FrameSemicircular): the width of the outer and the + width of the inner line. + \param midLineWidth only used for frames with 3-line edges: the width + of the middle line. + \param pen the basic pen to be used for this frame's lines + \param background the brush to be used for the frame's background or QBrush() if the background is not to be filled by a brush + \param backPixmap if not zero points to a pixmap to be used for the background + \param backPixmapMode determines how the size pixmap is adjusted to the frame size, + see \c BackPixmapMode for the possible values. + + \sa SimpleFrame, BackPixmapMode, addProfileSection, setProfile, profile, setCorners, setCorner, cornerStyle, cornerWidth + \endif + */ + void setSimpleFrame( SimpleFrame frame, + int lineWidth, + int midLineWidth, + QPen pen, + QBrush background = QBrush(), + const QPixmap* backPixmap = 0, + BackPixmapMode backPixmapMode = PixStretched ); + +public: + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Names of the four frame edges + + \li \c ProfileTop + \li \c ProfileRight + \li \c ProfileBottom + \li \c ProfileLeft + + \sa setSimpleFrame, clearProfile, addProfileSection, setProfile, profile + \endif + */ + enum ProfileName { ProfileTop, ProfileRight, + ProfileBottom, ProfileLeft }; + +public slots: + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Add another section to one of the frames profiles. + + \note The sections will be drawn in the order in which they were added to the profile + beginning at the outside and ending with the inner section of the frame + + See setProfile for a short example using this method. + + \sa ProfileName, setSimpleFrame, addProfileSection, setProfile, profile + \endif + */ + void clearProfile( ProfileName name ); + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Add another section to one of the frames profiles. + + \note The sections will be drawn in the order in which they were added to the profile + beginning at the outside and ending with the inner section of the frame. + + Adding a gap between two sections can be done by specifying a <b>QPen( Qt::NoPen )</b>. + + See setProfile for a short example using this method. + + \sa ProfileName, setSimpleFrame, clearProfile, setProfile, profile + \endif + */ + void addProfileSection( ProfileName name, + int wid, + QPen pen, + KDFrameProfileSection::Direction dir = KDFrameProfileSection::DirPlain, // PENDING(blackie) possible enum problem + KDFrameProfileSection::Curvature curv = KDFrameProfileSection::CvtPlain ); + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Specify one of the frames profiles by copying another KDFrameProfile. + Use this function if a profile shall look the same as another one. + + <b>Example:</b> + + \verbatim + // instantiate a frame around an inner rectangle 50/20, 250/20 + KDFrame myFrame( 50,20, 250,120 ); + + // select a very simple rectangular frame with normal corners, black border, white background + myFrame.setSimpleFrame( KDFrame::FrameFlat, 1, 0, QPen( Qt::Black ), QBrush( Qt::White ) ); + + // make the top profile look more nice + myFrame.clearProfile( KDFrame::ProfileTop ); + myFrame.addProfileSection( KDFrame::ProfileTop, 2, QPen( Qt::Black ), + KDFrameProfileSection::DirPlain, + KDFrameProfileSection::CvtPlain ); + myFrame.addProfileSection( KDFrame::ProfileTop, 5, QPen( Qt::NoPen ), + KDFrameProfileSection::DirPlain, + KDFrameProfileSection::CvtPlain ); + myFrame.addProfileSection( KDFrame::ProfileTop, 1, QPen( Qt::Black ), + KDFrameProfileSection::DirPlain, + KDFrameProfileSection::CvtPlain ); + + // copy the top profile settings into the bottom profile + myFrame.setProfile( KDFrame::ProfileBottom, + myFrame.profile( KDFrame::ProfileTop ) ); + \endverbatim + + + \sa ProfileName, setSimpleFrame, clearProfile, addProfileSection, profile + \endif + */ + void setProfile( ProfileName name, const KDFrameProfile& profile ); + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Return one of the frames profiles. + + \sa ProfileName, setSimpleFrame, clearProfile, addProfileSection, setProfile + \endif + */ + const KDFrameProfile& profile( ProfileName name ) const; + +public: + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Names of the frame corners: + + \li \c CornerTopLeft + \li \c CornerTopRight + \li \c CornerBottomLeft + \li \c CornerBottomRight + + \sa setCorners, setCorner, setSunPos, cornerStyle, cornerWidth, sunPos + \endif + */ + enum CornerName { CornerTopLeft, + CornerTopRight, + CornerBottomLeft, + CornerBottomRight, + CornerUNKNOWN }; + +public slots: + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Converts the specified corner name enum to a string representation. + + \param type the corner name to convert + \return the string representation of the corner name enum + \endif + */ + static QString cornerNameToString( CornerName type ) { + switch( type ) { + case CornerTopLeft: + return "TopLeft"; + case CornerTopRight: + return "TopRight"; + case CornerBottomLeft: + return "BottomLeft"; + case CornerBottomRight: + return "BottomRight"; + case CornerUNKNOWN: + return "UNKNOWN"; + } + + return "UNKNOWN"; + } + + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Converts the specified string to a corner name enum value. + + \param string the string to convert + \return the corner name enum value + \endif + */ + static CornerName stringToCornerName( const QString& string ) { + if( string == "TopLeft" ) + return CornerTopLeft; + else if( string == "TopRight" ) + return CornerTopRight; + else if( string == "BottomLeft" ) + return CornerBottomLeft; + else if( string == "BottomRight" ) + return CornerBottomRight; + else if( string == "UNKNOWN" ) + return CornerUNKNOWN; + + return CornerUNKNOWN; + } + +public: + + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Look of the frame corners: + + \li \c CornerNormal a square angle corner. + \li \c CornerRound a quarter of a circle. + \li \c CornerOblique corner cut-off by 45 degrees. + + \sa setCorners, setCorner, cornerStyle, cornerWidth + \endif + */ + enum CornerStyle { CornerNormal, + CornerRound, + CornerOblique }; + +public slots: + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Converts the specified corner style enum to a string representation. + + \param type the corner style enum to convert + \return the string representation of the corner style enum + \endif + */ + static QString cornerStyleToString( CornerStyle type ) { + switch( type ) { + case CornerNormal: + return "Normal"; + case CornerRound: + return "Round"; + case CornerOblique: + return "Oblique"; + } + + return "Normal"; + } + + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Converts the specified string to a corner stylye enum value. + + \param string the string to convert + \return the corner style enum value + \endif + */ + static CornerStyle stringToCornerStyle( const QString& string ) { + if( string == "Normal" ) + return CornerNormal; + else if( string == "Round" ) + return CornerRound; + else if( string == "Oblique" ) + return CornerOblique; + + return CornerNormal; + } + + +public: + +// MOC_SKIP_BEGIN + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Helper class storing settings for one corner of the frame. + + To set/retrieve information stored in this class please use + the appropriate methods of the KDFrame class. + + \sa setCorners, setCorner, cornerStyle, cornerWidth, cornerProfile, CornerName, CornerStyle + \endif + */ + class KDCHART_EXPORT KDFrameCorner + { + friend class KDFrame; + public: + KDFrameCorner( CornerStyle style = CornerNormal, + int width = 0, + KDFrameProfile* const profile = 0 ) + : _style( style ), + _width( width ) + { + if( profile ) + _profile = *profile; + else + _profile.clear(); + } + /** + Destructor. Only defined to have it virtual. + */ + virtual ~KDFrameCorner(); + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Creates a DOM element node that represents a frame corner for use + in a DOM document. + + \param document the DOM document to which the node will belong + \param parent the parent node to which the new node will be appended + \param elementName the name of the new node + \param corner the corner to be represented + \endif + */ + static void createFrameCornerNode( QDomDocument& document, + QDomNode& parent, + const QString& elementName, + const KDFrameCorner& corner ); + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Reads data from a DOM element node that represents a frame + corner and fills a KDFrameCorner object with the data. + + \param element the DOM element to read from + \param corner the frame corner object to read the data into + \endif + */ + static bool readFrameCornerNode( const QDomElement& element, + KDFrameCorner& corner ); + + protected: + void setAll( CornerStyle style, + int width, + KDFrameProfile* const profile = 0 ) + { + _style = style; + _width = width; + if( profile ) + _profile = *profile; + else + _profile.clear(); + } + CornerStyle style() const + { + return _style; + } + int width() const + { + return _width; + } + const KDFrameProfile& profile() const + { + return _profile; + } + private: + CornerStyle _style; + int _width; + KDFrameProfile _profile; + }; + +// MOC_SKIP_END + +public slots: + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Specify the look and the width and (optionally) the profile + of one of the frame corners. + + \sa setCorners, cornerStyle, cornerWidth, cornerWidth, CornerName, CornerStyle + \endif + */ + void setCorner( CornerName name, + CornerStyle style, + int width, + KDFrameProfile* const profile = 0 ) + { + switch( name ) { + case CornerTopLeft: _cornerTL.setAll( style, width, profile ); + break; + case CornerTopRight: _cornerTR.setAll( style, width, profile ); + break; + case CornerBottomLeft: _cornerBL.setAll( style, width, profile ); + break; + case CornerBottomRight: _cornerBR.setAll( style, width, profile ); + break; + case CornerUNKNOWN: + break; + } + } + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Specify the look and the width and (optionally) the profile + of all of the frame corners. + + \sa setCorner, cornerStyle, cornerWidth, CornerName, CornerStyle + \endif + */ + void setCorners( CornerStyle style, + int width, + KDFrameProfile* const profile = 0 ) + { + _cornerTL.setAll( style, width, profile ); + _cornerTR.setAll( style, width, profile ); + _cornerBL.setAll( style, width, profile ); + _cornerBR.setAll( style, width, profile ); + } + + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Returns the look of one of the frame corners. + + \sa setCorners, cornerWidth, CornerName, CornerStyle + \endif + */ + CornerStyle cornerStyle( CornerName name ) const + { + switch( name ) { + case CornerTopLeft: return _cornerTL.style(); + case CornerTopRight: return _cornerTR.style(); + case CornerBottomLeft: return _cornerBL.style(); + case CornerBottomRight: return _cornerBR.style(); + case CornerUNKNOWN: + default: return CornerNormal; + } + } + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Returns the width of one of the frame corners. + + \sa setCorners, cornerStyle, CornerName, CornerStyle + \endif + */ + int cornerWidth( CornerName name ) const + { + switch( name ) { + case CornerTopLeft: return _cornerTL.width(); + case CornerTopRight: return _cornerTR.width(); + case CornerBottomLeft: return _cornerBL.width(); + case CornerBottomRight: return _cornerBR.width(); + case CornerUNKNOWN: + default: return 0; + } + } + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Returns the profile of one of the frame corners. + + \sa setCorners, cornerStyle, CornerName, CornerStyle + \endif + */ + const KDFrameProfile& cornerProfile( CornerName name ) const + { + switch( name ) { + case CornerUNKNOWN: + case CornerTopLeft: return _cornerTL.profile(); + case CornerTopRight: return _cornerTR.profile(); + case CornerBottomLeft: return _cornerBL.profile(); + case CornerBottomRight: return _cornerBR.profile(); + default: return _cornerTL.profile(); + } + } + + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Specifies the position of the sun, normally this is the upper left corner. + + \sa sunPos + \endif + */ + void setSunPos( CornerName sunPos ) + { + _sunPos = sunPos; + } + + /** + \ifnot v200 + \deprecated Feature scheduled for future release, at present not implemented. + \else + Returns the position of the sun. + + \sa setSunPos + \endif + */ + CornerName sunPos() const + { + return _sunPos; + } + + + /** + Specifies the brush to be used to fill the inner area of this frame, + calling this methode without passing in a parameter re-sets the background brush + to \c QBrush( \cQt::NoBrush \c). + + \Note To have a 'tiled' background image just use a brush + holding this pixmap - for other ways to show background + images please use setBackPixmap. + + \sa setBackPixmap, background + */ + void setBackground( QBrush background = QBrush( Qt::NoBrush ) ) + { + _background = background; + } + + /** + Specifies a pixmap to be used to fill the inner area of this frame, + calling this methode without passing in a parameter removes the background pixmap. + + \Note To have a 'tiled' background image do not use setBackPixmap + but use setBackground specifying a brush holding the pixmap. + + \sa setBackground, background + */ + void setBackPixmap( const QPixmap* backPixmap = 0, + BackPixmapMode backPixmapMode = PixStretched ) + { + _backPixmap = backPixmap ? *backPixmap : QPixmap(); + _backPixmapMode = backPixmapMode; + } + + /** + Returns the brush that is used to fill the inner area of this frame, + or a QBrush( \cNoBrush \c) if no background is to be drawn. + + \param backPixmap receives the pixmap used for drawing the background or + a null pixmap, test this by calling backPixmap.isNull() + + \Note If a 'tiled' background image is shown the respective pixmap + may be found by calling the <b>brush's</b> pixmap() function. + + \sa setBackground, setBackPixmap + */ + const QBrush& background( const QPixmap*& backPixmap, + BackPixmapMode& backPixmapMode ) const + { + backPixmap = &_backPixmap; + backPixmapMode = _backPixmapMode; + return _background; + } + + + /** + Specifies the position and the size of area that is surrounded by the frame. + + \note The rectangle applies to the <b>inner</b> area of the frame. + The Frame is drawn around this area: touching it but not covering it. + The outer size of the frame and the position of its outer left corner + depends from the frame profile width(s). + + \sa innerRect, setCorners, setSimpleFrame, setProfile + */ + void setInnerRect( QRect innerRect ) + { + _innerRect = innerRect; + } + + /** + Returns the position and the size of the frame. + + \note The rectangle returns to the <b>inner</b> area of the frame. + The Frame is drawn around this area: touching it but not covering it. + The outer size of the frame and the position of its outer left corner + depends from the frame profile width. + + \sa setInnerRect, setProfile + */ + QRect innerRect() const + { + return _innerRect; + } + + + /** + Paint methode drawing the background (if any) of the frame. + + \note Under normal circumstances you will <b>never</b> have to + call this methode since it is called internally by paint() if you + start it with \c PaintBackground (or with \c PaintAll, resp.) for the \c steps parameter. + */ + virtual void paintBackground( QPainter& painter, const QRect& innerRect ) const; + /** + Paint methode drawing the edges (if any) of the frame. + + \note Under normal circumstances you will <b>never</b> have to + call this methode since it is called internally by paint() if you + start it with \c PaintEdges (or with \c PaintAll, \c PaintBorder, resp.) for the \c steps parameter. + */ + virtual void paintEdges( QPainter& painter, const QRect& innerRect ) const; + /** + Paint methode drawing the corners (if any) of the frame. + + \note Under normal circumstances you will <b>never</b> have to + call this methode since it is called internally by paint() if you + start it with \c PaintCorners (or with \c PaintAll, \c PaintBorder, resp.) for the \c steps parameter. + */ + virtual void paintCorners( QPainter& painter, const QRect& innerRect ) const; + + +public: + /** + The different steps taken to paint the frame: + first paint the background then the edges then the corners. + By choosing \c PaintAll all the parts of the frame will be drawn. + + \li \c PaintBackground -- first paints the brush, then paints the pixmap if any + \li \c PaintEdges + \li \c PaintCorners + \li \c PaintBorder -- paint the edges and the corners but not the background + \li \c PaintAll + + \sa paint + */ + enum KDFramePaintSteps { PaintBackground, PaintEdges, PaintCorners, PaintBorder, PaintAll }; + +public slots: + + /** + Paint methode actually drawing the frame. + + This method must be called from inside the \c paint() methode of your widget. + + In order not to override the inner contents of the frame you normally would + first call <b>paint( painter, PaintBackground );</b> then do all the inside + drawing and finally call <b>paint( painter, PaintBorder );</b>. In case the + inner contents <b>are</b> allowed to (partially) override the frame border + you could do the following: First call <b>paint( painter, PaintBackground );</b> + immediately followed by <b>paint( painter, PaintEdges );</b> then do all your + inside work and finally draw <b>paint( painter, PaintCorners );</b>. + + \param painter The QPainter to be used for drawing. + \param steps The part of the frame to be drawn, use KDFrame::PaintAll to draw the entire frame and the background, + use KDFrame::PaintBackground to draw only the background, use KDFrame::PaintEdges to draw just the edges, + use KDFrame::PaintCorners to draw only the corners. + \param innerRect The area inside the frame. Use this parameter to temporarily override the \c innerRect set by + the constructor of KDFrame or by setInnerRect(). This approach can be usefull if you want to draw several + frames that differ only regarding to their position and size but share the same edges/corners/background settings. + In this case you could decide to instantiate only one KDFrame set up the desired settings and just call + its paint() methode several time - giving it the appropriate innerRect for each frame. This would result in + less memory usage since you could use that single KDFrame object as kind of a shared ressource. + */ + virtual void paint( QPainter* painter, + KDFramePaintSteps steps = PaintAll, + QRect innerRect = QRect(0,0,0,0) ) const; + + + /** + Remove all settings and specify no border, no edges, no background. + */ + void clearAll() + { + _background = QBrush(); + _backPixmap = QPixmap(); + _backPixmapMode = PixStretched; + _shadowWidth = 0; + _sunPos = CornerTopLeft; + _innerRect = QRect( 0,0, 0,0 ); + _topProfile.clear(); + _rightProfile.clear(); + _bottomProfile.clear(); + _leftProfile.clear(); + _cornerTL.setAll( CornerNormal, 0, 0 ); + _cornerTR.setAll( CornerNormal, 0, 0 ); + _cornerBL.setAll( CornerNormal, 0, 0 ); + _cornerBR.setAll( CornerNormal, 0, 0 ); + } + +public: + + /** + Default Constructor. Defines default values. + + The constructor does *not* have a \c parent parameter since drawing + of the frame is not done transparently but by (one or more) explicit + calls of the frames paint() methode. See explanation given there + to learn about the why and how of this... + + \note The rectangle applies to the <b>inner</b> area of the frame. + The Frame is drawn around this area: touching it but not covering it. + The outer size of the frame and the position of its outer left corner + depends from the frame profile width. + + \Note To have a 'tiled' background image do not specify a backPixmap + but use a background <b>brush</b> holding this pixmap. + + \sa rect, setInnerRect, setProfile + */ + KDFrame( QRect innerRect = QRect(0,0,0,0), + SimpleFrame frame = FrameFlat, + int lineWidth = 1, + int midLineWidth = 0, + QPen pen = QPen(), // solid black line with 0 width + QBrush background = QBrush(), // no brush + const QPixmap* backPixmap = 0, // no pixmap + BackPixmapMode backPixmapMode = PixStretched, + int shadowWidth = 0, + CornerName sunPos = CornerTopLeft ) + { + _profileSections.setAutoDelete( true ); + _innerRect = innerRect; + setSimpleFrame( frame, + lineWidth, + midLineWidth, + pen, + background, + backPixmap, + backPixmapMode ); + _shadowWidth = shadowWidth; + _sunPos = sunPos; + } + + +/* + Constructor. Set up a frame by copying settings of another frame. + + The constructor does *not* have a \c parent parameter since drawing + of the frame is not done transparently but by (one or more) explicit + calls of the frames paint() methode. See explanation given there + to learn about the why and how of this... + + \note The rectangle applies to the <b>inner</b> area of the frame. + The Frame is drawn around this area: touching it but not covering it. + The outer size of the frame and the position of its outer left corner + depends from the frame profile width. + + \sa rect, setInnerRect, setProfile + + KDFrame( QRect innerRect, + const KDFrame& R, + CornerName sunPos = CornerUNKNOWN ) + { + deepCopy( *this, R ); + if( innerRect.isValid() ) + _innerRect = innerRect; + if( CornerUNKNOWN != sunPos ) + _sunPos = sunPos; + + _profileSections.setAutoDelete( true ); + } +*/ +private: + KDFrame( const KDFrame& ) : QObject(0) {} + KDFrame& operator=( const KDFrame& ){return *this;} + + + +public: + /** + Destructor. Only defined to have it virtual. + */ + virtual ~KDFrame(); + + /* + Kopierroutine, aufgerufen im Copy-C'tor und im Zuweisungs-Operator + */ + static void deepCopy( KDFrame& D, const KDFrame& R ) + { + D._shadowWidth = R._shadowWidth; + D._sunPos = R._sunPos; + D._background = R._background; + D._backPixmap = R._backPixmap; + D._backPixmapMode = R._backPixmapMode; + D._innerRect = R._innerRect; + D._topProfile = R._topProfile; + D._rightProfile = R._rightProfile; + D._bottomProfile = R._bottomProfile; + D._leftProfile = R._leftProfile; + D._cornerTL = R._cornerTL; + D._cornerTR = R._cornerTR; + D._cornerBL = R._cornerBL; + D._cornerBR = R._cornerBR; + D._profileSections= R._profileSections; + D._profileSections.setAutoDelete( true ); + R.setProfileSectionsAutoDelete( false ); + } + + friend QTextStream& operator<<( QTextStream& s, const KDFrame& p ); + friend QTextStream& operator>>( QTextStream& s, KDFrame& p ); + + /** + Creates a DOM element node that represents a frame for use + in a DOM document. + + \param document the DOM document to which the node will belong + \param parent the parent node to which the new node will be appended + \param elementName the name of the new node + \param frame the frame to be represented + */ + static void createFrameNode( QDomDocument& document, QDomNode& parent, + const QString& elementName, + const KDFrame& frame ); + + /** + Creates a DOM element node that represents a frame profile for use + in a DOM document. + + \param document the DOM document to which the node will belong + \param parent the parent node to which the new node will be appended + \param elementName the name of the new node + \param profile the profile to be represented + */ + static void createFrameProfileNode( QDomDocument& document, + QDomNode& parent, + const QString& elementName, + KDFrameProfile profile ); + + /** + Reads data from a DOM element node that represents a frame + object and fills a KDFrame object with the data. + + \param element the DOM element to read from + \param frame the frame object to read the data into + */ + static bool readFrameNode( const QDomElement& element, + KDFrame& frame ); + + /** + Reads data from a DOM element node that represents a frame + profile and fills a KDFrameProfile object with the data. + + \param element the DOM element to read from + \param profile the frame profile object to read the data into + */ + static bool readFrameProfileNode( const QDomElement& element, + KDFrameProfile& profile ); + +signals: + /** + This signal is emitted when any of the frame parameters has changed. + */ + void changed(); + +private: + void setProfileSectionsAutoDelete( bool on ) const + { + ((KDFrame*)this)->_profileSections.setAutoDelete( on ); + } + + /** + Stores the width of the shadow. + */ + int _shadowWidth; + + /** + Stores the position of the sun. + */ + CornerName _sunPos; + + /** + Stores the brush to be used to fill the inner area. + */ + QBrush _background; + + /** + Stores the pixmap to be painted into the inner area. + */ + QPixmap _backPixmap; + + /** + Stores the way how to display the pixmap that is + to be painted into the inner area. + */ + BackPixmapMode _backPixmapMode; + + /** + Stores the position and size of the frame. + */ + QRect _innerRect; + + /** + Stores all currently used profile settings for a controlled deletion. + + \note The other pointer lists (like _topProfile or _rightProfile) + do NOT delete the objects that belong to their pointers, + but all sections will be deleted via this extra _profileSections list: + this allows for using the same KDFrameProfileSection* to be used + by several lists - typically done for simple frames where all 4 sides + are composed the same way. + */ + KDFrameProfile _profileSections; + + /** + Stores the profile settings for the top side of the frame. + */ + KDFrameProfile _topProfile; + /** + Stores the profile settings for the right side of the frame. + */ + KDFrameProfile _rightProfile; + /** + Stores the profile settings for the bottom side of the frame. + */ + KDFrameProfile _bottomProfile; + /** + Stores the profile settings for the left side of the frame. + */ + KDFrameProfile _leftProfile; + + /** + Stores the settings for the top left corner of the frame. + */ + KDFrameCorner _cornerTL; + /** + Stores the settings for the top right corner of the frame. + */ + KDFrameCorner _cornerTR; + /** + Stores the settings for the bottom left corner of the frame. + */ + KDFrameCorner _cornerBL; + /** + Stores the settings for the bottom right corner of the frame. + */ + KDFrameCorner _cornerBR; +}; + + +/** + Writes the KDFrame object p as an XML document to the text stream s. + + \param s the text stream to write to + \param p the KDFrame object to write + \return the text stream after the write operation + */ +QTextStream& operator<<( QTextStream& s, const KDFrame& p ); + + +/** + Reads the an XML document from the text stream s into the + KDFrame object p + + \param s the text stream to read from + \param p the KDFrame object to read into + \return the text stream after the read operation + */ +QTextStream& operator>>( QTextStream& s, KDFrame& p ); + + +#endif |