src/ui/LabelEntry.cc

   1 /* Shopper
   2  * Copyright (C) 2008 David Greaves <david@dgreaves.com>
   3  *
   4  * This software is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public License
   6  * as published by the Free Software Foundation; either version 2.1 of
   7  * the License, or (at your option) any later version.
   8  *
   9  * This software is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this software; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  17  * 02110-1301 USA
  18  *
  19  */
  20 //#define DEBUG_SHOPPER 1
  21 #include "LabelEntry.h"
  22 #include "shopper.h"           // automake, i8n, gettext
  23 #include "GestureWatcher.h"
  24 #include <QWidget>
  25 #include <QLabel>
  26 #include <QString>
  27 #include <QMouseEvent>
  28 #include <QLineEdit>
  29 #include <QSizePolicy>
  30 #include <QFont>
  31
  32 namespace Shopper
  33 {
  34         // SLabel a label that emits pressed() when clicked
  35         SLabel::SLabel(QWidget * parent, Qt::WindowFlags f ) :
  36                 QLabel(parent, f)
  37         {
  38         }
  39         SLabel::SLabel( const QString & text, QWidget * parent, Qt::WindowFlags f ) :
  40                 QLabel(text, parent, f)
  41         {
  42         }
  43         void SLabel::setVisible(bool vis)
  44         {
  45                 QLabel::setVisible(vis);
  46         }
  47         void SLabel::mouseReleaseEvent ( QMouseEvent * event )
  48         {
  49                 if (event->button() == Qt::LeftButton) {
  50                         event->accept();
  51                         emit pressed();
  52                 }
  53                 event->ignore();
  54         }
  55
  56         // LabelEntry - a label that turns into a textbox when clicked
  57         LabelEntry::LabelEntry(QWidget *parent) :
  58                 QWidget(parent),
  59                 data(""),
  60                 entry(0),
  61                 layout(this)
  62         {
  63                 init();
  64         }
  65         LabelEntry::LabelEntry(const QString & value, QWidget *parent) :
  66                 QWidget(parent),
  67                 data(value),
  68                 entry(0),
  69                 layout(this)
  70         {
  71                 init();
  72         }
  73         void LabelEntry::init()
  74         {
  75                 myLabel = new SLabel(data, this);
  76                 GestureWatcher* gw = GestureWatcher::getGestureWatcher();
  77                 gw->connect(myLabel, Gesture("r l "),
  78                                    this, SLOT(label_clicked()));
  79                 gw->connect(myLabel, Gesture("l r "),
  80                                    this, SLOT(label_clicked()));
  81 //              connect(myLabel, SIGNAL(pressed()),
  82 //                              this, SLOT(label_clicked()));
  83                 layout.addWidget(myLabel);
  84                 layout.setContentsMargins(0, 0, 0, 0);
  85                 myLabel->show();
  86         }
  87         QString LabelEntry::getText()
  88         {
  89                 return data;
  90         }
  91
  92         void LabelEntry::label_clicked()
  93         {
  94                 _ENTER;
  95                 if (entry != 0) return; // events may arrive post-creation
  96                 entry = new QLineEdit(this);
  97                 entry->setSizePolicy(myLabel->sizePolicy());
  98 //              entry->set_activates_default(false);
  99 //              entry->set_width_chars(15); // FIXME
 100                 entry->setText(data);
 101                 // self-destruct on unfocus or activate
 102                 connect(entry, SIGNAL(editingFinished()),
 103                                 this, SLOT(entry_finished()));
 104
 105                 layout.removeWidget(myLabel);
 106                 myLabel->hide();
 107                 layout.addWidget(entry);
 108                 entry->show();
 109                 entry->setFocus(Qt::MouseFocusReason);
 110         }
 111         void LabelEntry::entry_finished()
 112         {
 113                 if (entry == 0) return; // events may arrive post-deletion
 114                 data=entry->text();
 115                 myLabel->setText(data);
 116                 layout.removeWidget(entry);
 117                 entry->hide();
 118                 layout.addWidget(myLabel);
 119                 myLabel->show();
 120                 entry->deleteLater();   // We can now forget about it...
 121                 entry=0;
 122                 emit changed();
 123         }
 124         void LabelEntry::setAlignment ( Qt::Alignment al )
 125         {
 126                 myLabel->setAlignment(al);
 127         }
 128         void LabelEntry::setText ( const QString & d )
 129         {
 130                 data = d;
 131         }
 132         void LabelEntry::setVisible(bool vis)
 133         {
 134                 QWidget::setVisible(vis);
 135         }
 136
 137         void LabelEntry::setFrameStyle(int i)
 138         {
 139                 myLabel->setFrameStyle(i);
 140         }
 141         void LabelEntry::setSizePolicy(QSizePolicy::Policy h, QSizePolicy::Policy v)
 142         {
 143                 QWidget::setSizePolicy(h,v);
 144                 myLabel->setSizePolicy(h,v);
 145         }
 146         void LabelEntry::setSizePolicy(QSizePolicy p)
 147         {
 148                 QWidget::setSizePolicy(p);
 149                 myLabel->setSizePolicy(p);
 150         }
 151         void LabelEntry::setFont ( const QFont & f)
 152         {
 153                 myLabel->setFont(f);
 154                 if (entry) entry->setFont(f);
 155         }
 156         QLabel* LabelEntry::label () { return myLabel; }
 157 }