kstars/kstars/infobox.cpp

   1 /***************************************************************************
   2                           infobox.cpp  -  description
   3                              -------------------
   4     begin                : Thu May 30 2002
   5     copyright            : (C) 2002 by Jason Harris
   6     email                : jharris@30doradus.org
   7  ***************************************************************************/
   8
   9 /***************************************************************************
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  ***************************************************************************/
  17
  18 #include <kdebug.h>
  19 #include <qpainter.h>
  20
  21 #include "infobox.h"
  22
  23 InfoBox::InfoBox(){
  24         setText1( "" );
  25         setText2( "" );
  26         setText3( "" );
  27         move( 0, 0 );
  28 //Initialize text dimension variables to 0
  29         FullTextWidth  = 0;
  30         FullTextHeight = 0;
  31         ShadedTextWidth  = 0;
  32         ShadedTextHeight = 0;
  33
  34         AnchorFlag = AnchorNone;
  35         Visible = true;
  36         Shaded = false;
  37 }
  38
  39 InfoBox::InfoBox( int x, int y, bool shade, QString t1, QString t2, QString t3 ) {
  40         setText1( t1 );
  41         setText2( t2 );
  42         setText3( t3 );
  43         move( x, y );
  44         Shaded = shade;
  45 //Initialize text dimension variables to 0
  46         FullTextWidth  = 0;
  47         FullTextHeight = 0;
  48         ShadedTextWidth  = 0;
  49         ShadedTextHeight = 0;
  50
  51         AnchorFlag = AnchorNone;
  52         Visible = true;
  53 }
  54
  55 InfoBox::InfoBox( QPoint pt, bool shade, QString t1, QString t2, QString t3 ) {
  56         setText1( t1 );
  57         setText2( t2 );
  58         setText3( t3 );
  59         move( pt );
  60         Shaded = shade;
  61 //Initialize text dimension variables to 0
  62         FullTextWidth  = 0;
  63         FullTextHeight = 0;
  64         ShadedTextWidth  = 0;
  65         ShadedTextHeight = 0;
  66
  67         AnchorFlag = AnchorNone;
  68         Visible = true;
  69 }
  70
  71 InfoBox::~InfoBox(){
  72 }
  73
  74 void InfoBox::setAnchorRight( const bool ar ) {
  75         if ( ar ) setAnchorFlag( anchorFlag() | AnchorRight  );
  76         else      setAnchorFlag( anchorFlag() & ~AnchorRight );
  77 }
  78
  79 void InfoBox::setAnchorBottom( const bool ab ) {
  80         if ( ab ) setAnchorFlag( anchorFlag() | AnchorBottom  );
  81         else      setAnchorFlag( anchorFlag() & ~AnchorBottom );
  82 }
  83
  84 bool InfoBox::toggleShade() {
  85         Shaded = !Shaded;
  86         updateSize();
  87
  88         emit shaded( Shaded );
  89         return Shaded;
  90 }
  91
  92 void InfoBox::updateSize() {
  93         int dh = ShadedTextHeight/2;
  94 //      kdDebug() << "Full=" << FullTextWidth + 2*padx() << "," << FullTextHeight - dh + 2*pady() << endl;
  95         if ( Shaded ) resize( ShadedTextWidth + 2*padx(), ShadedTextHeight - dh + 2*pady() );
  96         else resize( FullTextWidth + 2*padx(), FullTextHeight - dh + 2*pady() );
  97 //      kdDebug() << "Size=" << Size.width() << "," << Size.height() << endl;
  98 }
  99
 100 bool InfoBox::constrain( QRect r, bool inside ) {
 101         if ( inside ) {
 102                 //Place InfoBox within QRect r:
 103                 if ( x() < r.x() ) move( r.x(), y() );
 104                 if ( y() < r.y() ) move( x(), r.y() );
 105                 if ( x() + width() > r.right() ) move( r.right() - width(), y() );
 106                 if ( y() + height() > r.bottom() ) move( x(), r.bottom() - height() );
 107                 //The InfoBox is now within the bounds of QRect r, unless it is bigger than r.
 108                 //In that case, we cannot obey the constraint, but the current position is as
 109                 //close as we can get.  Return false in this case.
 110                 if ( width() > r.width() || height() > r.height() ) return false;
 111                 else return true;
 112         } else {
 113 //FIXME...
 114                 //Place InfoBox outside QRect r.  First, determine if InfoBox is within r:
 115 //              if ( rect().intersects( r ) ) {
 116                         //Move the InfoBox in all four directions until it no longer intersects r.
 117                         //Determine which displacement is shortest
 118                         //
 119                 return false;
 120         }
 121 }
 122
 123 void InfoBox::draw( QPainter &p, QColor BGColor, unsigned int BGMode ) {
 124         QRect r;
 125         int w,h;
 126
 127         r = p.boundingRect( x(), y(), p.window().width(), p.window().height(), Qt::AlignCenter, text1() );
 128         ShadedTextWidth  = r.width();
 129         ShadedTextHeight = r.height();
 130
 131         w = ShadedTextWidth;
 132         h = ShadedTextHeight;
 133
 134         if ( !text2().isEmpty() ) {
 135                 r = p.boundingRect( x(), y(), p.window().width(), p.window().height(), Qt::AlignCenter, text2() );
 136                 if ( r.width() > w ) w = r.width();
 137                 h += r.height();
 138         }
 139
 140         if ( !text3().isEmpty() ) {
 141                 r = p.boundingRect( x(), y(), p.window().width(), p.window().height(), Qt::AlignCenter, text3() );
 142                 if ( r.width() > w ) w = r.width();
 143                 h += r.height();
 144         }
 145
 146         FullTextWidth = w;
 147         FullTextHeight = h;
 148
 149         updateSize();
 150         constrain( QRect( 0, 0, p.window().width(), p.window().height() ) );
 151
 152 //Draw the box boundary and the text
 153         if ( BGMode==1 ) p.fillRect( x(), y(), width(), height(), QBrush( BGColor, Dense4Pattern ) );
 154         if ( BGMode==2 ) p.fillRect( x(), y(), width(), height(), QBrush( BGColor ) );
 155
 156         p.drawText( x() + padx(), y() + ShadedTextHeight/2 + pady(), text1() );
 157
 158         if ( !Shaded ) {
 159                 if ( !text2().isEmpty() ) p.drawText( x() + padx(), y() + 3*ShadedTextHeight/2 + pady(), text2() );
 160                 if ( !text3().isEmpty() ) p.drawText( x() + padx(), y() + 5*ShadedTextHeight/2 + pady(), text3() );
 161         }
 162 }
 163
 164 QRect InfoBox::rect() const {
 165         return QRect( pos(), size() );
 166 }
 167
 168 void InfoBox::move( int x, int y ) {
 169         Pos.setX( x ); Pos.setY( y ); emit moved( QPoint(x,y) );
 170 }
 171
 172 void InfoBox::move( QPoint p ) {
 173         move( p.x(), p.y() ); emit moved( QPoint( p.x(), p.y() ) );
 174 }
 175
 176 #include "infobox.moc"