kactivelabel.cpp
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00020 #include "kactivelabel.h"
00021
00022 #include <kapplication.h>
00023 #include <qregexp.h>
00024 #include <qwhatsthis.h>
00025 #include <qsimplerichtext.h>
00026
00027
00028 KActiveLabel::KActiveLabel(QWidget * parent, const char * name)
00029 : QTextBrowser(parent, name)
00030 {
00031 init();
00032 }
00033
00034 KActiveLabel::KActiveLabel(const QString &text, QWidget * parent, const char * name)
00035 : QTextBrowser(parent, name)
00036 {
00037 init();
00038 setText(text);
00039 }
00040
00041 void KActiveLabel::init()
00042 {
00043 setTextFormat(Qt::RichText);
00044 setVScrollBarMode(QScrollView::AlwaysOff);
00045 setHScrollBarMode(QScrollView::AlwaysOff);
00046 setFrameStyle(QFrame::NoFrame);
00047 paletteChanged();
00048
00049 connect(this, SIGNAL(linkClicked(const QString &)),
00050 this, SLOT(openLink(const QString &)));
00051 if (kapp)
00052 {
00053 connect(kapp, SIGNAL(kdisplayPaletteChanged()),
00054 this, SLOT(paletteChanged()));
00055 }
00056 }
00057
00058 void KActiveLabel::paletteChanged()
00059 {
00060 QPalette p = kapp ? kapp->palette() : palette();
00061 p.setBrush(QColorGroup::Base, p.brush(QPalette::Normal, QColorGroup::Background));
00062 p.setColor(QColorGroup::Text, p.color(QPalette::Normal, QColorGroup::Foreground));
00063 setPalette(p);
00064 }
00065
00066 void KActiveLabel::openLink(const QString & link)
00067 {
00068 QRegExp whatsthis("whatsthis:/*([^/].*)");
00069 if (whatsthis.exactMatch(link)) {
00070 QWhatsThis::display(whatsthis.cap(1));
00071 return;
00072 }
00073
00074 QStringList args;
00075 args << "exec" << link;
00076 kapp->kdeinitExec("kfmclient", args);
00077 }
00078
00079 void KActiveLabel::virtual_hook( int, void* )
00080 { }
00081
00082 void KActiveLabel::focusInEvent( QFocusEvent* fe )
00083 {
00084 QTextBrowser::focusInEvent(fe);
00085 if(fe->reason() == QFocusEvent::Tab || fe->reason() == QFocusEvent::Backtab)
00086 selectAll(true);
00087 }
00088
00089 void KActiveLabel::focusOutEvent( QFocusEvent* fe )
00090 {
00091 QTextBrowser::focusOutEvent(fe);
00092 if(fe->reason() == QFocusEvent::Tab || fe->reason() == QFocusEvent::Backtab)
00093 selectAll(false);
00094 }
00095
00096 QSize KActiveLabel::minimumSizeHint() const
00097 {
00098 QSize ms = minimumSize();
00099 if ((ms.width() > 0) && (ms.height() > 0))
00100 return ms;
00101
00102 int w = 400;
00103 if (ms.width() > 0)
00104 w = ms.width();
00105
00106 QString txt = text();
00107 QSimpleRichText rt(txt, font());
00108 rt.setWidth(w - 2*frameWidth() - 10);
00109 w = 10 + rt.widthUsed() + 2*frameWidth();
00110 if (w < ms.width())
00111 w = ms.width();
00112 int h = rt.height() + 2*frameWidth();
00113 if ( h < ms.height())
00114 h = ms.height();
00115
00116 return QSize(w, h);
00117 }
00118
00119 QSize KActiveLabel::sizeHint() const
00120 {
00121 return minimumSizeHint();
00122 }
00123
00124 #include "kactivelabel.moc"
This file is part of the documentation for kdeui Library Version 3.3.0.
Documentation copyright © 1996-2004 the KDE developers.
Generated on Thu Sep 23 17:11:52 2004 by
doxygen 1.3.8-20040913 written by
Dimitri van Heesch, © 1997-2003