KDGanttViewTaskItem.cpp

/*
   $Id$
   KDGantt - a multi-platform charting engine
*/
 
/****************************************************************************
 ** Copyright (C)  2002-2004 Klarälvdalens Datakonsult AB.  All rights reserved.
 **
 ** This file is part of the KDGantt 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 KDGantt licenses may use this file in
 ** accordance with the KDGantt 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/Public/products/ for
 **   information about KDGantt Commercial License Agreements.
 **
 ** Contact info@klaralvdalens-datakonsult.se if any conditions of this
 ** licensing are not clear to you.
 **
 ** As a special exception, permission is given to link this program
 ** with any edition of TQt, and distribute the resulting executable,
 ** without including the source code for TQt in the source distribution.
 **
 **********************************************************************/
 
 
#include "KDGanttViewTaskItem.h"
#include "KDGanttViewSubwidgets.h"
 
#include "itemAttributeDialog.h"
 
KDGanttViewTaskItem::KDGanttViewTaskItem( KDGanttView* view,
                                          const TQString& lvtext,
                                          const TQString& name ) :
    KDGanttViewItem( Task, view, lvtext, name )
{
 
  initItem();
}
 
 
KDGanttViewTaskItem::KDGanttViewTaskItem( KDGanttViewItem* parent,
                                          const TQString& lvtext,
                                          const TQString& name ) :
    KDGanttViewItem( Task, parent, lvtext, name )
{
  initItem();
}
 
 
KDGanttViewTaskItem::KDGanttViewTaskItem( KDGanttView* view,
                                                KDGanttViewItem* after,
                                                const TQString& lvtext,
                                                const TQString& name ) :
    KDGanttViewItem( Task, view, after, lvtext, name )
{
  initItem();
}
 
 
KDGanttViewTaskItem::KDGanttViewTaskItem( KDGanttViewItem* parent,
                                          KDGanttViewItem* after,
                                          const TQString& lvtext,
                                          const TQString& name ) :
    KDGanttViewItem( Task, parent, after, lvtext, name )
{
  initItem();
}
 
 
KDGanttViewTaskItem::~KDGanttViewTaskItem()
{
 
}
 
 
void KDGanttViewTaskItem::setEndTime( const TQDateTime& end )
{
  myEndTime = end;
  if ( myEndTime < startTime() )
      setStartTime( myEndTime );
  else
    updateCanvasItems();
}
 
 
void KDGanttViewTaskItem::setStartTime( const TQDateTime& start )
{
  if (! start.isValid() ) {
    tqDebug("KDGanttViewTaskItem::setStartTime():Invalid parameter-no time set");
    return;
  }
    myStartTime = start;
    if ( myStartTime > endTime() )
      setEndTime( myStartTime );
    else
      updateCanvasItems();
}
 
 
void KDGanttViewTaskItem::hideMe()
{
    startShape->hide();
    progressShape->hide();
    textCanvas->hide();
    floatStartShape->hide();
    floatEndShape->hide();
}
 
 
void KDGanttViewTaskItem::showItem(bool show, int coordY)
{
 
  //tqDebug("KDGanttViewTaskItem::showItem() %d %s ", (int) show, listViewText().latin1());
  isVisibleInGanttView = show;
  invalidateHeight () ;
  if (!show) {
    hideMe();
    return;
  }
  bool takedefaultHeight = true ; // pending: make configureable
  float prio = ((float) ( priority() - 100 )) / 100.0;
  startShape->setZ( prio );
  progressShape->setZ(startShape->z()+0.002); // less than textCanvas
  progressShape->hide();
  floatStartShape->setZ(startShape->z()+0.003); // less than textCanvas
  floatStartShape->hide();
  floatEndShape->setZ(startShape->z()+0.003); // less than textCanvas
  floatEndShape->hide();
  textCanvas->setZ( prio + 0.005 );
  if ( displaySubitemsAsGroup() && !parent() && !isOpen() ) {
    hideMe();
    return;
  }
  if ( displaySubitemsAsGroup()  && ( firstChild() || myGanttView->calendarMode() )  ) {
    hideMe();//new
    return;//new
    myStartTime = myChildStartTime();
    myEndTime = myChildEndTime();
  }
  //setExpandable(false);
  KDCanvasRectangle* temp = (KDCanvasRectangle*) startShape;
  KDCanvasRectangle* progtemp = (KDCanvasRectangle*) progressShape;
  int startX, endX, midX = 0,allY, progX=0;
   if ( coordY )
    allY = coordY;
  else
    allY = getCoordY();
  startX = myGanttView->myTimeHeader->getCoordX(myStartTime);
  endX = myGanttView->myTimeHeader->getCoordX(myEndTime);
  midX = endX;
  if (myProgress > 0) {
    progX = (endX - startX) * myProgress / 100;
  }
  int hei = height();
  if ( ! isVisible() ) {
    KDGanttViewItem * par = parent();
    while ( par != 0 && !par->isVisible() )
      par = par->parent();
    if ( par )
      hei = par->height();
  }
  if (myGanttView->myListView->itemAt( TQPoint(2, allY)))
     hei =  myGanttView->myListView->itemAt( TQPoint(2, allY))->height();
  if ( takedefaultHeight )
    hei = 16;
  if ( myStartTime == myEndTime ) {
    textCanvas->hide();
    if ( showNoInformation() ) {
      startShape->hide();
    } else {
      startShape->setZ( 1.01 );
      if (myGanttView->displayEmptyTasksAsLine() ) {
    hei = myGanttView->myTimeTable->height();
    if (hei  < myGanttView->myTimeTable->pendingHeight )
      hei = myGanttView->myTimeTable->pendingHeight;
    temp->setSize(5,  hei  );
    temp->move(startX, 0);
    temp->show();
      } else {
    temp->setSize( 1,  hei -3 );
    temp->move(startX, allY-hei/2 +2);
    temp->show();
      }
    }
    return;
  }
  if ( startX +3 >= endX )
    temp->setSize( 3,  hei-3 );
  else
    temp->setSize(endX-startX,  hei-3 );
  temp->move(startX, allY-hei/2 +2);
  temp->show();
  if (progX > 0) {
    // FIXME: For now, just use inverted color for progress
    TQColor c = temp->brush().color();
    int h, s, v;
    c.getHsv(&h, &s, &v);
    h > 359/2 ? h -= 359/2 : h += 359/2;
    c.setHsv(h, s, v);
    progtemp->setBrush(TQBrush(c));
    
    progtemp->setSize(progX, hei-3);
    progtemp->move(temp->x(), temp->y());
    progtemp->show();
  }
  if (myFloatStartTime.isValid()) {
    KDCanvasRectangle* floatStartTemp = (KDCanvasRectangle*) floatStartShape;
    int floatStartX = myGanttView->myTimeHeader->getCoordX(myFloatStartTime);
    // FIXME: Configurable colors
    TQBrush b(temp->brush().color(), Dense4Pattern);
    floatStartTemp->setBrush(b);
    floatStartTemp->setPen(TQPen(gray));
    if (floatStartX < startX) {
        floatStartTemp->setSize(startX - floatStartX, temp->size().height()/2);
        floatStartTemp->move(floatStartX, temp->y() + temp->size().height()/4);
    } else {
        floatStartTemp->setSize(floatStartX - startX, temp->size().height()/2);
        floatStartTemp->move(startX, temp->y() + temp->size().height()/4);
    }
    floatStartTemp->show();    
  }
  if (myFloatEndTime.isValid()) {
    KDCanvasRectangle* floatEndTemp = (KDCanvasRectangle*) floatEndShape;
    int floatEndX = myGanttView->myTimeHeader->getCoordX(myFloatEndTime);
    // FIXME: Configurable colors
    TQBrush b(temp->brush().color(), Dense4Pattern);
    floatEndTemp->setBrush(b);
    floatEndTemp->setPen(TQPen(gray));
    int ex = startX + temp->size().width();
    if (floatEndX > ex) {
        floatEndTemp->setSize(floatEndX - ex, temp->size().height()/2);
        floatEndTemp->move(ex, temp->y() + temp->size().height()/4);
    } else {
        floatEndTemp->setSize(ex - floatEndX, temp->size().height()/2);
        floatEndTemp->move(floatEndX, temp->y() + temp->size().height()/4);
    }
    floatEndTemp->show();    
  }
  
  int wid = endX-startX - 4;
  if ( !displaySubitemsAsGroup() && !myGanttView->calendarMode()) {
    moveTextCanvas(endX,allY);
    textCanvas->show();
  } else {
    if ( textCanvasText.isEmpty()  || wid < 5)
      textCanvas->hide();
    else {
      textCanvas->move(startX+3, allY-textCanvas->boundingRect().height()/2);
      TQString temp = textCanvasText;
      textCanvas->setText(temp);
      int len =  temp.length();
      while ( textCanvas->boundingRect().width() > wid ) {
    temp.truncate(--len);
    textCanvas->setText(temp);
      }
      if ( temp.isEmpty())
    textCanvas->hide();
      else {
    textCanvas->show();
      }
    }
  }
}
 
 
void KDGanttViewTaskItem::initItem()
{
  isVisibleInGanttView = false;
 
  if ( myGanttView->calendarMode() && parent() ) {
    setVisible( false );
    parent()->setVisible( true );
  } else
    showItem(true);
  //tqDebug("initItem  %s %s", listViewText().latin1(),startShape->brush().color().name().latin1() );
  myGanttView->myTimeTable->updateMyContent();
  setDragEnabled( myGanttView->dragEnabled() );
  setDropEnabled( myGanttView->dropEnabled() );
}