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	* Removed all CVS tags. * Removed 'const char *name' parameter from all QObject contructors.
		
			
				
	
	
		
			140 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			140 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
//   rdlabel.cpp
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//
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//   Multiline button labelling that is smart about spaces and the like 
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//
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//   (C) Copyright 2002,2016 Fred Gleason <fredg@paravelsystems.com>
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//
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//   This program is free software; you can redistribute it and/or modify
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//   it under the terms of the GNU Library General Public License 
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//   version 2 as published by the Free Software Foundation.
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//
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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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//
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//   You should have received a copy of the GNU General Public
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//   License along with this program; if not, write to the Free Software
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//   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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//
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#include <stdlib.h>
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#include <stdio.h>
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#include <qwidget.h>
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#include <qlabel.h>
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#include <qpainter.h>
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#include <qcolor.h>
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#include <qpalette.h>
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#include <qsize.h>
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#include <qrect.h>
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#include <qpixmap.h>
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#include <rdlabel.h>
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RDLabel::RDLabel(QWidget *parent,WFlags f)
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  : QLabel(parent,"",f)
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{
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  label_wrap=false;
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}
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RDLabel::RDLabel(const QString &text,QWidget *parent=0,WFlags f)
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  : QLabel(text,parent,"",f)
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{
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  label_wrap=false;
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  label_text=text;
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  QLabel::setText(WrapText());
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}
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RDLabel::RDLabel(QWidget *buddy,const QString &text,QWidget *parent,WFlags f)
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  : QLabel(buddy,text,parent,"",f)
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{
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  label_wrap=false;
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  label_text=text;
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  QLabel::setText(WrapText());
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}
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QString RDLabel::text() const
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{
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  return label_text;
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}
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void RDLabel::setFont(const QFont &font)
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{
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  label_font=font;
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  QLabel::setFont(font);
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  QLabel::setText(WrapText());
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}
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bool RDLabel::wordWrapEnabled() const
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{
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  return label_wrap;
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}
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void RDLabel::setWordWrapEnabled(bool state)
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{
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  label_wrap=state;
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  QLabel::setText(WrapText());
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}
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void RDLabel::setText(const QString &string)
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{
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  label_text=string;
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  QLabel::setText(WrapText());
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}
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QString RDLabel::WrapText()
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{
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  QFontMetrics fm(label_font);
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  QString str;
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  QString residue=label_text;
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  bool space_found=false;
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  int l;
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  if(label_wrap&&!label_text.isEmpty()) {
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    while(!residue.isEmpty()) {
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      space_found=false;
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      for(int i=residue.length();i>=0;i--) {
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	if((i==((int)residue.length()))||(residue.at(i).isSpace())) {
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	  if(fm.boundingRect(residue.left(i)).width()<=width()) {
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	    space_found=true;
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	    if(!str.isEmpty()) {
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	      str+="\n";
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	    }
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	    str+=residue.left(i);
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	    if(i==(int)residue.length()) {
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	      return str;
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	    }
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	    residue=residue.right(residue.length()-i-1);
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	  }
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	}
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      }
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      if(!space_found) {
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	l=residue.length();
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	for(int i=l;i>=0;i--) {
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	  if(fm.boundingRect(residue.left(i)).width()<=width()) {
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	    if(!str.isEmpty()) {
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	      str+="\n";
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	    }
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	    str+=residue.left(i);
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	    if(i==(int)residue.length()) {
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	      return str;
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	    }
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	    residue=residue.right(residue.length()-i-1);
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	  }
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	}
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      }
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    }
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  }
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  return label_text;
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}
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