mirror of
https://github.com/ElvishArtisan/rivendell.git
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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,Qt::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,Qt::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,Qt::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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