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/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 532 insertions, 0 deletions

diff --git a/kdm/kfrontend/themer/kdmitem.cpp b/kdm/kfrontend/themer/kdmitem.cpp
new file mode 100644
index 000000000..48c0d1faf
--- /dev/null
+++ b/kdm/kfrontend/themer/kdmitem.cpp
@@ -0,0 +1,532 @@
+/*
+ *  Copyright (C) 2003 by Unai Garro <ugarro@users.sourceforge.net>
+ *  Copyright (C) 2004 by Enrico Ros <rosenric@dei.unipd.it>
+ *  Copyright (C) 2004 by Stephan Kulow <coolo@kde.org>
+ *  Copyright (C) 2004 by Oswald Buddenhagen <ossi@kde.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+/*
+ * Generic Kdm Item
+ */
+
+//#define DRAW_OUTLINE 1	// for debugging only
+
+#include "kdmitem.h"
+#include "kdmlayout.h"
+
+#include <kglobal.h>
+#include <kdebug.h>
+
+#include <qframe.h>
+#include <qwidget.h>
+#include <qlayout.h>
+#include <qimage.h>
+#ifdef DRAW_OUTLINE
+# include <qpainter.h>
+#endif
+
+KdmItem::KdmItem( KdmItem *parent, const QDomNode &node, const char *name )
+    : QObject( parent, name )
+    , boxManager( 0 )
+    , fixedManager( 0 )
+    , image( 0 )
+    , myWidget( 0 )
+    , myLayoutItem( 0 )
+    , buttonParent( 0 )
+{
+	// Set default layout for every item
+	currentManager = MNone;
+	pos.x = pos.y = 0;
+	pos.width = pos.height = 1;
+	pos.xType = pos.yType = pos.wType = pos.hType = DTnone;
+	pos.anchor = "nw";
+
+	isShown = InitialHidden;
+
+	// Set defaults for derived item's properties
+	properties.incrementalPaint = false;
+	state = Snormal;
+
+	// The "toplevel" node (the screen) is really just like a fixed node
+	if (!parent || !parent->inherits( "KdmItem" )) {
+		setFixedLayout();
+		return;
+	}
+	// Read the mandatory Pos tag. Other tags such as normal, prelighted,
+	// etc.. are read under specific implementations.
+	QDomNodeList childList = node.childNodes();
+	for (uint nod = 0; nod < childList.count(); nod++) {
+		QDomNode child = childList.item( nod );
+		QDomElement el = child.toElement();
+		QString tagName = el.tagName(), attr;
+
+		if (tagName == "pos") {
+			parseAttribute( el.attribute( "x", QString::null ), pos.x, pos.xType );
+			parseAttribute( el.attribute( "y", QString::null ), pos.y, pos.yType );
+			parseAttribute( el.attribute( "width", QString::null ), pos.width, pos.wType );
+			parseAttribute( el.attribute( "height", QString::null ), pos.height, pos.hType );
+			pos.anchor = el.attribute( "anchor", "nw" );
+		}
+	}
+
+	QDomNode tnode = node;
+	id = tnode.toElement().attribute( "id", QString::number( (ulong)this, 16 ) );
+
+	// Tell 'parent' to add 'me' to its children
+	KdmItem *parentItem = static_cast<KdmItem *>( parent );
+	parentItem->addChildItem( this );
+}
+
+KdmItem::~KdmItem()
+{
+	delete boxManager;
+	delete fixedManager;
+	delete image;
+}
+
+void
+KdmItem::update()
+{
+}
+
+void
+KdmItem::needUpdate()
+{
+	emit needUpdate( area.x(), area.y(), area.width(), area.height() );
+}
+
+void
+KdmItem::show( bool force )
+{
+	if (isShown != InitialHidden && !force)
+		return;
+
+	QValueList<KdmItem *>::Iterator it;
+	for (it = m_children.begin(); it != m_children.end(); ++it)
+		(*it)->show();
+
+	isShown = Shown;
+
+	if (myWidget)
+		myWidget->show();
+	// XXX showing of layouts not implemented, prolly pointless anyway
+
+	needUpdate();
+}
+
+void
+KdmItem::hide( bool force )
+{
+	if (isShown == ExplicitlyHidden)
+		return;
+
+	if (isShown == InitialHidden && force) {
+		isShown = ExplicitlyHidden;
+		return;		// no need for further action
+	}
+
+	QValueList<KdmItem *>::Iterator it;
+	for (it = m_children.begin(); it != m_children.end(); ++it)
+		(*it)->hide();
+
+	isShown = force ? ExplicitlyHidden : InitialHidden;
+
+	if (myWidget)
+		myWidget->hide();
+	// XXX hiding of layouts not implemented, prolly pointless anyway
+
+	needUpdate();
+}
+
+void
+KdmItem::inheritFromButton( KdmItem *button )
+{
+	if (button)
+		buttonParent = button;
+
+	QValueList<KdmItem *>::Iterator it;
+	for (it = m_children.begin(); it != m_children.end(); ++it)
+		(*it)->inheritFromButton( button );
+}
+
+KdmItem *
+KdmItem::findNode( const QString &_id ) const
+{
+	if (id == _id)
+		return const_cast<KdmItem *>( this );
+
+	QValueList<KdmItem *>::ConstIterator it;
+	for (it = m_children.begin(); it != m_children.end(); ++it) {
+		KdmItem *t = (*it)->findNode( _id );
+		if (t)
+			return t;
+	}
+
+	return 0;
+}
+
+void
+KdmItem::setWidget( QWidget *widget )
+{
+//	delete myWidget;	-- themer->widget() owns the widgets
+
+	myWidget = widget;
+	if (isHidden())
+		myWidget->hide();
+	else
+		myWidget->show();
+
+	// Remove borders so that it blends nicely with the theme background
+	QFrame* frame = ::qt_cast<QFrame *>( widget );
+	if (frame)
+		frame->setFrameStyle( QFrame::NoFrame );
+
+	myWidget->setGeometry(area);
+
+	connect( myWidget, SIGNAL(destroyed()), SLOT(widgetGone()) );
+}
+
+void
+KdmItem::widgetGone()
+{
+	myWidget = 0;
+}
+
+void
+KdmItem::setLayoutItem( QLayoutItem *item )
+{
+	myLayoutItem = item;
+	// XXX hiding not supported - it think it's pointless here
+	if (myLayoutItem->widget())
+		connect( myLayoutItem->widget(), SIGNAL(destroyed()),
+		         SLOT(layoutItemGone()) );
+	else if (myLayoutItem->layout())
+		connect( myLayoutItem->layout(), SIGNAL(destroyed()),
+		         SLOT(layoutItemGone()) );
+}
+
+void
+KdmItem::layoutItemGone()
+{
+	myLayoutItem = 0;
+}
+
+/* This is called as a result of KdmLayout::update, and directly on the root */
+void
+KdmItem::setGeometry( const QRect &newGeometry, bool force )
+{
+	kdDebug() << " KdmItem::setGeometry " << id << newGeometry << endl;
+	// check if already 'in place'
+	if (!force && area == newGeometry)
+		return;
+
+	area = newGeometry;
+
+	if (myWidget)
+		myWidget->setGeometry( newGeometry );
+	if (myLayoutItem)
+		myLayoutItem->setGeometry( newGeometry );
+
+	// recurr to all boxed children
+	if (boxManager && !boxManager->isEmpty())
+		boxManager->update( newGeometry, force );
+
+	// recurr to all fixed children
+	if (fixedManager && !fixedManager->isEmpty())
+		fixedManager->update( newGeometry, force );
+
+	// TODO send *selective* repaint signal
+}
+
+void
+KdmItem::paint( QPainter *p, const QRect &rect )
+{
+	if (isHidden())
+		return;
+
+	if (myWidget || (myLayoutItem && myLayoutItem->widget()))
+		return;
+
+	if (area.intersects( rect )) {
+		QRect contentsRect = area.intersect( rect );
+		contentsRect.moveBy( QMIN( 0, -area.x() ), QMIN( 0, -area.y() ) );
+		drawContents( p, contentsRect );
+	}
+
+#ifdef DRAW_OUTLINE
+	// Draw bounding rect for this item
+	p->setPen( Qt::white );
+	p->drawRect( area );
+#endif
+
+	if (myLayoutItem)
+		return;
+
+	// Dispatch paint events to children
+	QValueList<KdmItem *>::Iterator it;
+	for (it = m_children.begin(); it != m_children.end(); ++it)
+		(*it)->paint( p, rect );
+}
+
+KdmItem *KdmItem::currentActive = 0;
+
+void
+KdmItem::mouseEvent( int x, int y, bool pressed, bool released )
+{
+	if (buttonParent && buttonParent != this) {
+		buttonParent->mouseEvent( x, y, pressed, released );
+		return;
+	}
+
+	ItemState oldState = state;
+	if (area.contains( x, y )) {
+		if (released && oldState == Sactive) {
+			if (buttonParent)
+				emit activated( id );
+			state = Sprelight;
+			currentActive = 0;
+		} else if (pressed || currentActive == this) {
+			state = Sactive;
+			currentActive = this;
+		} else if (!currentActive)
+			state = Sprelight;
+		else
+			state = Snormal;
+	} else {
+		if (released)
+			currentActive = 0;
+		if (currentActive == this)
+			state = Sprelight;
+		else
+			state = Snormal;
+	}
+
+	if (!buttonParent) {
+		QValueList<KdmItem *>::Iterator it;
+		for (it = m_children.begin(); it != m_children.end(); ++it)
+			(*it)->mouseEvent( x, y, pressed, released );
+	}
+
+	if (oldState != state)
+		statusChanged();
+}
+
+void
+KdmItem::statusChanged()
+{
+	if (buttonParent == this) {
+		QValueList<KdmItem *>::Iterator it;
+		for (it = m_children.begin(); it != m_children.end(); ++it) {
+			(*it)->state = state;
+			(*it)->statusChanged();
+		}
+	}
+}
+
+// BEGIN protected inheritable
+
+QSize
+KdmItem::sizeHint()
+{
+	if (myWidget)
+		return myWidget->size();
+	if (myLayoutItem)
+		return myLayoutItem->sizeHint();
+	int w = pos.wType == DTpixel ? kAbs( pos.width ) : -1,
+	    h = pos.hType == DTpixel ? kAbs( pos.height ) : -1;
+	return QSize( w, h );
+}
+
+QRect
+KdmItem::placementHint( const QRect &parentRect )
+{
+	QSize hintedSize = sizeHint();
+	QSize boxHint;
+
+	int x = parentRect.left(),
+	    y = parentRect.top(),
+	    w = parentRect.width(),
+	    h = parentRect.height();
+
+	kdDebug() << "KdmItem::placementHint parentRect=" << id << parentRect << " hintedSize=" << hintedSize << endl;
+	// check if width or height are set to "box"
+	if (pos.wType == DTbox || pos.hType == DTbox) {
+		if (myLayoutItem || myWidget)
+			boxHint = hintedSize;
+		else {
+			if (!boxManager)
+				return parentRect;
+			boxHint = boxManager->sizeHint();
+		}
+		kdDebug() << " => boxHint " << boxHint << endl;
+	}
+
+	if (pos.xType == DTpixel)
+		x += pos.x;
+	else if (pos.xType == DTnpixel)
+		x = parentRect.right() - pos.x;
+	else if (pos.xType == DTpercent)
+		x += int( parentRect.width() / 100.0 * pos.x );
+
+	if (pos.yType == DTpixel)
+		y += pos.y;
+	else if (pos.yType == DTnpixel)
+		y = parentRect.bottom() - pos.y;
+	else if (pos.yType == DTpercent)
+		y += int( parentRect.height() / 100.0 * pos.y );
+
+	if (pos.wType == DTpixel)
+		w = pos.width;
+	else if (pos.wType == DTnpixel)
+		w -= pos.width;
+	else if (pos.wType == DTpercent)
+		w = int( parentRect.width() / 100.0 * pos.width );
+	else if (pos.wType == DTbox)
+		w = boxHint.width();
+	else if (hintedSize.width() > 0)
+		w = hintedSize.width();
+	else
+		w = 0;
+
+	if (pos.hType == DTpixel)
+		h = pos.height;
+	else if (pos.hType == DTnpixel)
+		h -= pos.height;
+	else if (pos.hType == DTpercent)
+		h = int( parentRect.height() / 100.0 * pos.height );
+	else if (pos.hType == DTbox)
+		h = boxHint.height();
+	else if (hintedSize.height() > 0)
+		h = hintedSize.height();
+	else
+		h = 0;
+
+	// defaults to center
+	int dx = -w / 2, dy = -h / 2;
+
+	// anchor the rect to an edge / corner
+	if (pos.anchor.length() > 0 && pos.anchor.length() < 3) {
+		if (pos.anchor.find( 'n' ) >= 0)
+			dy = 0;
+		if (pos.anchor.find( 's' ) >= 0)
+			dy = -h;
+		if (pos.anchor.find( 'w' ) >= 0)
+			dx = 0;
+		if (pos.anchor.find( 'e' ) >= 0)
+			dx = -w;
+	}
+	// KdmItem *p = static_cast<KdmItem*>( parent() );
+	kdDebug() << "KdmItem::placementHint " << id << " x=" << x << " dx=" << dx << " w=" << w << " y=" << y << " dy=" << dy << " h=" << h << " " << parentRect << endl;
+	y += dy;
+	x += dx;
+
+	// Note: no clipping to parent because this broke many themes!
+	return QRect( x, y, w, h );
+}
+
+// END protected inheritable
+
+
+void
+KdmItem::addChildItem( KdmItem *item )
+{
+	m_children.append( item );
+	switch (currentManager) {
+	case MNone:		// fallback to the 'fixed' case
+		setFixedLayout();
+	case MFixed:
+		fixedManager->addItem( item );
+		break;
+	case MBox:
+		boxManager->addItem( item );
+		break;
+	}
+
+	// signal bounce from child to parent
+	connect( item, SIGNAL(needUpdate( int, int, int, int )), SIGNAL(needUpdate( int, int, int, int )) );
+	connect( item, SIGNAL(activated( const QString & )), SIGNAL(activated( const QString & )) );
+}
+
+void
+KdmItem::parseAttribute( const QString &s, int &val, enum DataType &dType )
+{
+	if (s.isEmpty())
+		return;
+
+	int p;
+	if (s == "box") {	// box value
+		dType = DTbox;
+		val = 0;
+	} else if ((p = s.find( '%' )) >= 0) {	// percent value
+		dType = DTpercent;
+		QString sCopy = s;
+		sCopy.remove( p, 1 );
+		sCopy.replace( ',', '.' );
+		val = (int)sCopy.toDouble();
+	} else {		// int value
+		dType = DTpixel;
+		QString sCopy = s;
+		if (sCopy.at( 0 ) == '-') {
+			sCopy.remove( 0, 1 );
+			dType = DTnpixel;
+		}
+		sCopy.replace( ',', '.' );
+		val = (int)sCopy.toDouble();
+	}
+}
+
+void
+KdmItem::parseFont( const QString &s, QFont &font )
+{
+	int splitAt = s.findRev( ' ' );
+	if (splitAt < 1)
+		return;
+	font.setFamily( s.left( splitAt ) );
+	int fontSize = s.mid( splitAt + 1 ).toInt();
+	if (fontSize > 1)
+		font.setPointSize( fontSize );
+}
+
+void
+KdmItem::parseColor( const QString &s, QColor &color )
+{
+	if (s.at( 0 ) != '#')
+		return;
+	bool ok;
+	QString sCopy = s;
+	int hexColor = sCopy.remove( 0, 1 ).toInt( &ok, 16 );
+	if (ok)
+		color.setRgb( hexColor );
+}
+
+void
+KdmItem::setBoxLayout( const QDomNode &node )
+{
+	if (!boxManager)
+		boxManager = new KdmLayoutBox( node );
+	currentManager = MBox;
+}
+
+void
+KdmItem::setFixedLayout( const QDomNode &node )
+{
+	if (!fixedManager)
+		fixedManager = new KdmLayoutFixed( node );
+	currentManager = MFixed;
+}
+
+#include "kdmitem.moc"