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388 lines
11 KiB
388 lines
11 KiB
/*
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$Id: KDGanttViewTaskLinkGroup.cpp 360312 2004-11-04 10:01:39Z danders $
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KDGantt - a multi-platform charting engine
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*/
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/****************************************************************************
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** Copyright (C) 2002-2004 Klarälvdalens Datakonsult AB. All rights reserved.
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**
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** This file is part of the KDGantt library.
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**
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.
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**
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** Licensees holding valid commercial KDGantt licenses may use this file in
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** accordance with the KDGantt Commercial License Agreement provided with
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** the Software.
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**
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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**
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** See http://www.klaralvdalens-datakonsult.se/Public/products/ for
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** information about KDGantt Commercial License Agreements.
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**
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** Contact info@klaralvdalens-datakonsult.se if any conditions of this
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** licensing are not clear to you.
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**
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** As a special exception, permission is given to link this program
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** with any edition of TQt, and distribute the resulting executable,
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** without including the source code for TQt in the source distribution.
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**
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**********************************************************************/
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#include "KDGanttViewTaskLinkGroup.h"
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#include "KDGanttXMLTools.h"
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#include "KDGanttView.h"
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TQDict<KDGanttViewTaskLinkGroup> KDGanttViewTaskLinkGroup::sGroupDict;
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/*! \class KDGanttViewTaskLinkGroup KDGanttViewTaskLinkGroup.h
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A group of task links.
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This class groups a number of task links together in order to
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manipulate them uniformly.
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*/
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/*!
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Constructs an empty task link group
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*/
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KDGanttViewTaskLinkGroup::KDGanttViewTaskLinkGroup()
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{
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generateAndInsertName(TQString());
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}
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/*!
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Destructor
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Removes this task link group from the list of task link groups in the
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KDGanttView class.
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*/
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KDGanttViewTaskLinkGroup::~KDGanttViewTaskLinkGroup()
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{
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if (!myTaskLinkList.isEmpty()) {
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myTaskLinkList.first()->from().first()->myGanttView->removeTaskLinkGroup(this);
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}
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}
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/*!
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Constructs an empty task link group and records it under the name \a
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name so that it can later be found again with
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KDGanttViewTaskLinkGroup::find().
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\param name the search name of this task link group
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*/
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KDGanttViewTaskLinkGroup::KDGanttViewTaskLinkGroup( const TQString& name )
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{
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generateAndInsertName( name );
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}
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/*!
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Adds a task link LINK to this group. If the task link is already a member of
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another group, it will be removed from it.
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This function is equivalent to LINK->setGroup(this), where this is
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a pointer to this TaskLinkGroup.
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\param link a pointer to the task link to add to this task link group
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visible, and false to hide them
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\sa remove()
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*/
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void KDGanttViewTaskLinkGroup::insert (KDGanttViewTaskLink* link)
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{
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link->setGroup(this);
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}
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/*!
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Removes a task link LINK from this group.
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You may remove a tasklink LINK from its group with LINK->setGroup(0).
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\param link a pointer to the task link to remove from this task link group
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\return true if the task link was a member of this group
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\sa insert()
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*/
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bool KDGanttViewTaskLinkGroup::remove (KDGanttViewTaskLink* link)
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{
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KDGanttViewTaskLinkGroup* g = link->group();
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if ((g == this))
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link->setGroup(0);
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return (g == this);
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}
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/*!
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Specifies whether the task links of this group should be visible or not.
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\param show visible pass true to make the task links of this group
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visible, and false to hide them
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\sa isVisible()
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*/
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void KDGanttViewTaskLinkGroup::setVisible( bool show )
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{
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isvisible = show;
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TQPtrListIterator<KDGanttViewTaskLink> it(myTaskLinkList);
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for ( ; it.current(); ++it ) {
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it.current()->setVisible(show);
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}
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}
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/*!
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Returns whether the task links of this group should be visible or not.
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\return true if the task links of this group are visible
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\sa setVisible()
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*/
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bool KDGanttViewTaskLinkGroup::visible() const
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{
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return isvisible;
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}
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/*!
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Specifies whether the task links of this group should be shown
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highlighted. The user can also highlight a task link with the mouse.
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\param highlight pass true in order to highlight the task links in
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this group
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\sa highlight()
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*/
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void KDGanttViewTaskLinkGroup::setHighlight( bool highlight )
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{
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ishighlighted= highlight;
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TQPtrListIterator<KDGanttViewTaskLink> it(myTaskLinkList);
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for ( ; it.current(); ++it )
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it.current()->setHighlight(highlight );
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}
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/*!
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Returns whether all task links in this group are highlighted, either
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programmatically by setHighlight() or by the user with the
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mouse. This method is not particularly useful and is mainly provided
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for API uniformity reasons.
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\return true if all the task links in this group are highlighted
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\sa setHighlight()
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*/
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bool KDGanttViewTaskLinkGroup::highlight() const
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{
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return ishighlighted;
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}
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/*!
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Specifies the color to draw the task links in this group in.
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\param color the color to draw the task links in this group in
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\sa color()
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*/
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void KDGanttViewTaskLinkGroup::setColor( const TQColor& color )
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{
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myColor = color;
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TQPtrListIterator<KDGanttViewTaskLink> it(myTaskLinkList);
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for ( ; it.current(); ++it )
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it.current()->setColor(color);
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}
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/*!
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Returns the color in which the task links in this group are
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drawn. If task links have been assigned individual colors, the
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return value of this method is undefined. This method is not
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particularly useful and is mainly provided for API uniformity
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reasons.
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\return the color in which the task links in this group are drawn
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\sa setColor()
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*/
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TQColor KDGanttViewTaskLinkGroup::color() const
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{
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return myColor;
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}
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/*!
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Specifies the highlight color to draw the task links in this group in.
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\param color the highlight color to draw the task links in this group in
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\sa color()
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*/
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void KDGanttViewTaskLinkGroup::setHighlightColor( const TQColor& color )
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{
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myColorHL = color;
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TQPtrListIterator<KDGanttViewTaskLink> it(myTaskLinkList);
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for ( ; it.current(); ++it )
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it.current()->setHighlightColor(color);
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}
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/*!
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Returns the highlight color in which the task links in this group are
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drawn. If task links have been assigned individual highlight colors,
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the return value of this method is undefined. This method is not
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particularly useful and is mainly provided for API uniformity reasons.
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\return the highlight color in which the task links in this group
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are drawn
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\sa setColor()
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*/
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TQColor KDGanttViewTaskLinkGroup::highlightColor() const
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{
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return myColorHL;
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}
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/*!
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Adds a task link LINK to this group. If the task link is already a member of
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another group, it will not be removed from it.
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\param a pointer to the task link to add to this task link group
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visible, and false to hide them
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\sa removeItem()
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*/
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void KDGanttViewTaskLinkGroup::insertItem (KDGanttViewTaskLink* link)
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{
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myTaskLinkList.append (link);
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}
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/*!
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Removes a task link LINK from this group.
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\param a pointer to the task link to remove from this task link group
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\sa insertItem()
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*/
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void KDGanttViewTaskLinkGroup::removeItem (KDGanttViewTaskLink* link)
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{
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myTaskLinkList.remove(link);
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}
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/*!
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Returns the task link group with the specified name.
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\param name the name to search for
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\return the task link group with the specified name; 0 if no group
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with that name exists
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*/
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KDGanttViewTaskLinkGroup* KDGanttViewTaskLinkGroup::find( const TQString& name )
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{
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if (name.isEmpty()) // avoid error msg from TQDict
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return 0;
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return sGroupDict.find( name );
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}
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/*!
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Creates a DOM node that describes this task link group.
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\param doc the DOM document to which the node belongs
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\param parentElement the element into which to insert this node
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*/
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void KDGanttViewTaskLinkGroup::createNode( TQDomDocument& doc,
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TQDomElement& parentElement )
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{
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TQDomElement taskLinkGroupElement = doc.createElement( "TaskLink" );
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parentElement.appendChild( taskLinkGroupElement );
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KDGanttXML::createBoolNode( doc, taskLinkGroupElement, "Highlight",
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highlight() );
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KDGanttXML::createColorNode( doc, taskLinkGroupElement, "Color", color() );
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KDGanttXML::createColorNode( doc, taskLinkGroupElement, "HighlightColor",
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highlightColor() );
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KDGanttXML::createBoolNode( doc, taskLinkGroupElement, "Visible",
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visible() );
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KDGanttXML::createStringNode( doc, taskLinkGroupElement, "Name", _name );
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}
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/*!
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Creates a KDGanttViewTaskLinkGroup according to the specification in a DOM
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element.
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\param element the DOM element from which to read the specification
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\return the newly created task link group
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*/
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KDGanttViewTaskLinkGroup* KDGanttViewTaskLinkGroup::createFromDomElement( TQDomElement& element )
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{
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TQDomNode node = element.firstChild();
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bool highlight = false, visible = false;
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TQColor color, highlightColor;
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TQString name;
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while( !node.isNull() ) {
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TQDomElement element = node.toElement();
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if( !element.isNull() ) { // was really an element
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TQString tagName = element.tagName();
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if( tagName == "Highlight" ) {
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bool value;
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if( KDGanttXML::readBoolNode( element, value ) )
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highlight = value;
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} else if( tagName == "Visible" ) {
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bool value;
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if( KDGanttXML::readBoolNode( element, value ) )
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visible = value;
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} else if( tagName == "Color" ) {
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TQColor value;
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if( KDGanttXML::readColorNode( element, value ) )
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color = value;
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} else if( tagName == "HighlightColor" ) {
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TQColor value;
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if( KDGanttXML::readColorNode( element, value ) )
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highlightColor = value;
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} else if( tagName == "Name" ) {
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TQString value;
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if( KDGanttXML::readStringNode( element, value ) )
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name = value;
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} else {
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tqDebug( "Unrecognized tag name: %s", tagName.latin1() );
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Q_ASSERT( false );
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}
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}
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node = node.nextSibling();
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}
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KDGanttViewTaskLinkGroup* tlg;
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if( !name.isEmpty() )
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tlg = new KDGanttViewTaskLinkGroup( name );
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else
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tlg = new KDGanttViewTaskLinkGroup();
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tlg->setHighlight( highlight );
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tlg->setVisible( visible );
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tlg->setHighlightColor( highlightColor );
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tlg->setColor( color );
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return tlg;
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}
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/*!
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Generates a unique name if necessary and inserts it into the group
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dictionary.
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*/
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void KDGanttViewTaskLinkGroup::generateAndInsertName( const TQString& name )
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{
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// First check if we already had a name. This can be the case if
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// the item was reconstructed from an XML file.
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if( !_name.isEmpty() )
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// We had a name, remove it
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sGroupDict.remove( _name );
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TQString newName;
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if ( name.isEmpty() || sGroupDict.find( name ) ) {
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// create unique name
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newName.sprintf( "%p", (void* )this );
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while( sGroupDict.find( newName ) ) {
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newName += "_0";
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}
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} else {
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newName = name;
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}
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sGroupDict.insert( newName, this );
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_name = newName;
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//tqDebug("KDGanttViewTaskLinkGroup::generateAndInsertName: inserted '%s'",newName.latin1());
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}
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