Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 450 insertions, 0 deletions

diff --git a/kdeui/kurllabel.cpp b/kdeui/kurllabel.cpp
new file mode 100644
index 000000000..f45fce3a7
--- /dev/null
+++ b/kdeui/kurllabel.cpp
@@ -0,0 +1,450 @@
+/* This file is part of the KDE libraries
+   Copyright (C) 1998 Kurt Granroth <granroth@kde.org>
+   Copyright (C) 2000 Peter Putzer <putzer@kde.org>
+   Copyright (C) 2005 Jaroslaw Staniek <js@iidea.pl>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License version 2 as published by the Free Software Foundation.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include <qcolor.h>
+#include <qtimer.h>
+#include <qtooltip.h>
+#include <qpixmap.h>
+#include <qpainter.h>
+#include <qstyle.h>
+#include <qapplication.h>
+
+#include <kcursor.h>
+#include <kglobalsettings.h>
+
+#include "kurllabel.h"
+
+class KURLLabel::Private
+{
+public:
+  Private (const QString& url, KURLLabel* label)
+    : URL (url),
+      LinkColor (KGlobalSettings::linkColor()),
+      HighlightedLinkColor (Qt::red),
+      Tip(url),
+      Cursor (0L),
+      Underline (true),
+      UseTips (false),
+      Glow (true),
+      Float (false),
+      RealUnderline (true),
+      MousePressed(false),
+      WasInsideRect(false),
+      MarginAltered(false),
+      Timer (new QTimer (label))
+  {
+    connect (Timer, SIGNAL (timeout ()), label, SLOT (updateColor ()));
+  }
+
+  ~Private ()
+  {
+      delete Cursor;
+  }
+
+  QString URL;
+  QPixmap AltPixmap;
+
+  QColor LinkColor;
+  QColor HighlightedLinkColor;
+
+  QString Tip;
+  QCursor* Cursor;
+  bool Underline:1;
+  bool UseTips:1;
+  bool Glow:1;
+  bool Float:1;
+  bool RealUnderline:1;
+  bool MousePressed:1;
+  bool WasInsideRect:1;
+  bool MarginAltered:1;
+  QPixmap RealPixmap;
+
+  QTimer* Timer;
+};
+
+KURLLabel::KURLLabel (const QString& url, const QString& text,
+                        QWidget* parent, const char* name)
+  : QLabel (!text.isNull() ? text : url, parent, name),
+    d (new Private (url, this))
+{
+  setFont (font());
+  setUseCursor (true);
+  setLinkColor (d->LinkColor);
+  setFocusPolicy( QWidget::StrongFocus ); //better accessibility
+  setMouseTracking (true);
+}
+
+KURLLabel::KURLLabel (QWidget* parent, const char* name)
+  : QLabel (parent, name),
+    d (new Private (QString::null, this))
+{
+  setFont (font());
+  setUseCursor (true);
+  setLinkColor (d->LinkColor);
+  setFocusPolicy( QWidget::StrongFocus ); //better accessibility
+  setMouseTracking (true);
+}
+
+KURLLabel::~KURLLabel ()
+{
+  delete d;
+}
+
+void KURLLabel::mouseReleaseEvent (QMouseEvent* e)
+{
+  QLabel::mouseReleaseEvent (e);
+  if (!d->MousePressed)
+    return;
+  d->MousePressed = false;
+  QRect r( activeRect() );
+  if (!r.contains(e->pos()))
+    return;
+
+  setLinkColor (d->HighlightedLinkColor);
+  d->Timer->start (300);
+
+  switch (e->button())
+    {
+    case LeftButton:
+      emit leftClickedURL ();
+      emit leftClickedURL (d->URL);
+      break;
+
+    case MidButton:
+      emit middleClickedURL ();
+      emit middleClickedURL (d->URL);
+      break;
+
+    case RightButton:
+      emit rightClickedURL ();
+      emit rightClickedURL (d->URL);
+      break;
+
+    default:
+      ; // nothing
+    }
+}
+
+void KURLLabel::setFont (const QFont& f)
+{
+  QFont newFont = f;
+  newFont.setUnderline (d->Underline);
+
+  QLabel::setFont (newFont);
+}
+
+void KURLLabel::setUnderline (bool on)
+{
+  d->Underline = on;
+
+  setFont (font());
+}
+
+void KURLLabel::updateColor ()
+{
+  d->Timer->stop();
+
+  QRect r( activeRect() );
+  if (!(d->Glow || d->Float) || !r.contains (mapFromGlobal(QCursor::pos())))
+    setLinkColor (d->LinkColor);
+}
+
+void KURLLabel::setLinkColor (const QColor& col)
+{
+  QPalette p = palette();
+  p.setColor (QColorGroup::Foreground, col);
+  setPalette (p);
+
+  update();
+}
+
+void KURLLabel::setURL (const QString& url)
+{
+  if ( d->Tip == d->URL ) { // update the tip as well
+    d->Tip = url;
+    setUseTips( d->UseTips );
+  }
+
+  d->URL = url;
+}
+
+const QString& KURLLabel::url () const
+{
+  return d->URL;
+}
+
+void KURLLabel::unsetCursor ()
+{
+	delete d->Cursor;
+	d->Cursor = 0;
+}
+
+void KURLLabel::setCursor ( const QCursor& cursor )
+{
+	delete d->Cursor;
+	d->Cursor = new QCursor( cursor );
+}
+
+void KURLLabel::setUseCursor (bool on, QCursor* cursor)
+{
+  if (on)
+    {
+      if (cursor)
+        KURLLabel::setCursor (*cursor);
+      else
+        KURLLabel::setCursor (KCursor::handCursor());
+    }
+  else
+    KURLLabel::unsetCursor ();
+}
+
+bool KURLLabel::useCursor () const
+{
+  return d->Cursor;
+}
+
+void KURLLabel::setUseTips (bool on)
+{
+  d->UseTips = on;
+
+  if (on) {
+    QToolTip::add (this, activeRect(), d->Tip);
+  } else
+    QToolTip::remove (this);
+}
+
+void KURLLabel::setTipText (const QString& tip)
+{
+  d->Tip = tip;
+
+  setUseTips (d->UseTips);
+}
+
+bool KURLLabel::useTips () const
+{
+  return d->UseTips;
+}
+
+const QString& KURLLabel::tipText () const
+{
+  return d->Tip;
+}
+
+void KURLLabel::setHighlightedColor (const QColor& highcolor)
+{
+  d->LinkColor = highcolor;
+
+  if (!d->Timer->isActive())
+    setLinkColor (highcolor);
+}
+
+void KURLLabel::setHighlightedColor (const QString& highcolor)
+{
+  setHighlightedColor (QColor (highcolor));
+}
+
+void KURLLabel::setSelectedColor (const QColor& selcolor)
+{
+  d->HighlightedLinkColor = selcolor;
+
+  if (d->Timer->isActive())
+    setLinkColor (selcolor);
+}
+
+void KURLLabel::setSelectedColor (const QString& selcolor)
+{
+  setSelectedColor (QColor (selcolor));
+}
+
+void KURLLabel::setGlow (bool glow)
+{
+  d->Glow = glow;
+}
+
+void KURLLabel::setFloat (bool do_float)
+{
+  d->Float = do_float;
+}
+
+bool KURLLabel::isGlowEnabled () const
+{
+  return d->Glow;
+}
+
+bool KURLLabel::isFloatEnabled () const
+{
+  return d->Float;
+}
+
+void KURLLabel::setAltPixmap (const QPixmap& altPix)
+{
+  d->AltPixmap = altPix;
+}
+
+const QPixmap* KURLLabel::altPixmap () const
+{
+  return &d->AltPixmap;
+}
+
+void KURLLabel::enterEvent (QEvent* e)
+{
+  QLabel::enterEvent (e);
+
+  QRect r( activeRect() );
+  if (!r.contains( static_cast<QMouseEvent*>(e)->pos() ))
+    return;
+
+  if (!d->AltPixmap.isNull() && pixmap())
+    {
+      d->RealPixmap = *pixmap();
+      setPixmap (d->AltPixmap);
+    }
+
+  if (d->Glow || d->Float)
+    {
+      d->Timer->stop();
+
+      setLinkColor (d->HighlightedLinkColor);
+
+      d->RealUnderline = d->Underline;
+
+      if (d->Float)
+        setUnderline (true);
+    }
+
+  emit enteredURL ();
+  emit enteredURL (d->URL);
+}
+
+void KURLLabel::leaveEvent (QEvent* e)
+{
+  QLabel::leaveEvent (e);
+
+  if (!d->AltPixmap.isNull() && pixmap())
+    setPixmap (d->RealPixmap);
+
+  if ((d->Glow || d->Float) && !d->Timer->isActive())
+    setLinkColor (d->LinkColor);
+
+  setUnderline (d->RealUnderline);
+
+  emit leftURL ();
+  emit leftURL (d->URL);
+}
+
+bool KURLLabel::event (QEvent *e)
+{
+  if (e && e->type() == QEvent::ParentPaletteChange)
+  {
+    // use parentWidget() unless you are a toplevel widget, then try qAapp
+    QPalette p = parentWidget() ? parentWidget()->palette() : qApp->palette();
+    p.setBrush(QColorGroup::Base, p.brush(QPalette::Normal, QColorGroup::Background));
+    p.setColor(QColorGroup::Foreground, palette().active().foreground());
+    setPalette(p);
+    d->LinkColor = KGlobalSettings::linkColor();
+    setLinkColor(d->LinkColor);
+    return true;
+  }
+  else if (e->type() == QEvent::Paint) {
+    const bool result = QLabel::event(e);
+    if (result && hasFocus()) {
+        QPainter p(this);
+        QRect r( activeRect() );
+        style().drawPrimitive( QStyle::PE_FocusRect, &p, r, colorGroup() );
+    }
+    return result;
+  }
+  else if (e->type() == QEvent::KeyPress) {
+    QKeyEvent* ke = static_cast<QKeyEvent*>(e);
+    if (ke->key() == Qt::Key_Enter || ke->key() == Qt::Key_Return) {
+      setLinkColor (d->HighlightedLinkColor);
+      d->Timer->start (300);
+      emit leftClickedURL ();
+      emit leftClickedURL (d->URL);
+      ke->accept();
+      return true;
+    }
+  }
+  else if (e->type() == QEvent::MouseButtonPress) {
+    QRect r( activeRect() );
+    d->MousePressed = r.contains(static_cast<QMouseEvent*>(e)->pos());
+  }
+  else if (e->type() == QEvent::MouseMove) {
+    if (d->Cursor) {
+      QRect r( activeRect() );
+      bool inside = r.contains(static_cast<QMouseEvent*>(e)->pos());
+      if (d->WasInsideRect != inside) {
+        if (inside)
+          QLabel::setCursor(*d->Cursor);
+        else
+          QLabel::unsetCursor();
+        d->WasInsideRect = inside;
+      }
+    }
+  }
+  return QLabel::event(e);
+}
+
+QRect KURLLabel::activeRect() const
+{
+  QRect r( contentsRect() );
+  if (text().isEmpty() || (!d->MarginAltered && sizePolicy() == QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed)))
+      return r; //fixed size is sometimes used with pixmap
+  int hAlign = QApplication::horizontalAlignment( alignment() );
+  int indentX = (hAlign && indent()>0) ? indent() : 0;
+  QFontMetrics fm(font());
+  r.setWidth( QMIN(fm.width(text()), r.width()));
+  if ( hAlign & AlignLeft )
+      r.moveLeft(r.left() + indentX);
+  if ( hAlign & AlignCenter )
+      r.moveLeft((contentsRect().width()-r.width())/2+margin());
+  if ( hAlign & AlignRight )
+      r.moveLeft(contentsRect().width()-r.width()-indentX+margin());
+  int add = QMIN(3, margin());
+  r = QRect(r.left()-add, r.top()-add, r.width()+2*add, r.height()+2*add);
+  return r;
+}
+
+void KURLLabel::setMargin( int margin )
+{
+  QLabel::setMargin(margin);
+  d->MarginAltered = true;
+}
+
+void KURLLabel::setFocusPolicy( FocusPolicy policy )
+{
+  QLabel::setFocusPolicy(policy);
+  if (!d->MarginAltered) {
+      QLabel::setMargin(policy == NoFocus ? 0 : 3); //better default : better look when focused
+  }
+}
+
+void KURLLabel::setSizePolicy ( QSizePolicy policy )
+{
+  QLabel::setSizePolicy(policy);
+  if (!d->MarginAltered && policy.horData()==QSizePolicy::Fixed && policy.verData()==QSizePolicy::Fixed) {
+      QLabel::setMargin(0); //better default : better look when fixed size
+  }
+}
+
+void KURLLabel::virtual_hook( int, void* )
+{ /*BASE::virtual_hook( id, data );*/ }
+
+#include "kurllabel.moc"