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kactivelabel.cpp
1 /* This file is part of the KDE libraries
2  Copyright (C) 1999 Waldo Bastian (bastian@kde.org)
3 
4  This library is free software; you can redistribute it and/or
5  modify it under the terms of the GNU Library General Public
6  License as published by the Free Software Foundation; version 2
7  of the License.
8 
9  This library is distributed in the hope that it will be useful,
10  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  Library General Public License for more details.
13 
14  You should have received a copy of the GNU Library General Public License
15  along with this library; see the file COPYING.LIB. If not, write to
16  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17  Boston, MA 02110-1301, USA.
18 */
19 
20 #include "kactivelabel.h"
21 
22 #include <tdeapplication.h>
23 #include <tqregexp.h>
24 #include <tqwhatsthis.h>
25 #include <tqsimplerichtext.h>
26 #include <kdebug.h>
27 
28 KActiveLabel::KActiveLabel(TQWidget * parent, const char * name)
29  : TQTextBrowser(parent, name)
30 {
31  init();
32 }
33 
34 KActiveLabel::KActiveLabel(const TQString &text, TQWidget * parent, const char * name)
35  : TQTextBrowser(parent, name)
36 {
37  init();
38  setText(text);
39 }
40 
41 void KActiveLabel::init()
42 {
43  setTextFormat(TQt::RichText);
44  setVScrollBarMode(TQScrollView::AlwaysOff);
45  setHScrollBarMode(TQScrollView::AlwaysOff);
46  setFrameStyle(TQFrame::NoFrame);
47  setFocusPolicy( TQWidget::TabFocus );
48  paletteChanged();
49 
50  connect(this, TQ_SIGNAL(linkClicked(const TQString &)),
51  this, TQ_SLOT(openLink(const TQString &)));
52  if (kapp)
53  {
54  connect(kapp, TQ_SIGNAL(tdedisplayPaletteChanged()),
55  this, TQ_SLOT(paletteChanged()));
56  }
57 }
58 
59 void KActiveLabel::paletteChanged()
60 {
61  TQPalette p = kapp ? kapp->palette() : palette();
62  p.setBrush(TQColorGroup::Base, p.brush(TQPalette::Active, TQColorGroup::Background));
63  p.setColor(TQColorGroup::Text, p.color(TQPalette::Active, TQColorGroup::Foreground));
64  setPalette(p);
65 }
66 
67 void KActiveLabel::openLink(const TQString & link)
68 {
69  TQRegExp whatsthis("whatsthis:/*([^/].*)");
70  if (whatsthis.exactMatch(link)) {
71  TQWhatsThis::display(whatsthis.cap(1));
72  return;
73  }
74 
75  TQStringList args;
76  args << "exec" << link;
77  kapp->tdeinitExec("kfmclient", args);
78 }
79 
80 void KActiveLabel::virtual_hook( int, void* )
81 { /*BASE::virtual_hook( id, data );*/ }
82 
83 void KActiveLabel::focusInEvent( TQFocusEvent* fe )
84 {
85  TQTextBrowser::focusInEvent(fe);
86  if(fe->reason() == TQFocusEvent::Tab || fe->reason() == TQFocusEvent::Backtab)
87  selectAll(true);
88 }
89 
90 void KActiveLabel::focusOutEvent( TQFocusEvent* fe )
91 {
92  TQTextBrowser::focusOutEvent(fe);
93  if(fe->reason() == TQFocusEvent::Tab || fe->reason() == TQFocusEvent::Backtab)
94  selectAll(false);
95 }
96 
97 void KActiveLabel::keyPressEvent( TQKeyEvent *e )
98 {
99  switch ( e->key() )
100  {
101  case Key_Down:
102  case Key_Up:
103  case Key_Left:
104  case Key_Right:
105  // jump over QTextEdit's key navigation breakage.
106  // we're not interested in keyboard navigation within the text
107  TQWidget::keyPressEvent( e );
108  break;
109  default:
110  TQTextBrowser::keyPressEvent( e );
111  }
112 }
113 
114 TQSize KActiveLabel::minimumSizeHint() const
115 {
116  TQSize ms = minimumSize();
117  if ((ms.width() > 0) && (ms.height() > 0))
118  return ms;
119 
120  int w = 400;
121  if (ms.width() > 0)
122  w = ms.width();
123 
124  TQString txt = text();
125  TQSimpleRichText rt(txt, font());
126  rt.setWidth(w - 2*frameWidth() - 10);
127  w = 10 + rt.widthUsed() + 2*frameWidth();
128  if (w < ms.width())
129  w = ms.width();
130  int h = rt.height() + 2*frameWidth();
131  if ( h < ms.height())
132  h = ms.height();
133 
134  return TQSize(w, h);
135 }
136 
137 TQSize KActiveLabel::sizeHint() const
138 {
139  return minimumSizeHint();
140 }
141 
142 #include "kactivelabel.moc"
KActiveLabel::openLink
virtual void openLink(const TQString &link)
Opens link in the default browser.
Definition: kactivelabel.cpp:67
KActiveLabel::KActiveLabel
KActiveLabel(TQWidget *parent, const char *name=0)
Constructor.
Definition: kactivelabel.cpp:28
TDEStdAccel::selectAll
const TDEShortcut & selectAll()

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