365 lines
8.8 KiB
C++
365 lines
8.8 KiB
C++
/*****************************************************************
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kwin - the KDE window manager
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Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
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******************************************************************/
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//#define QT_CLEAN_NAMESPACE
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#include "tabbox.h"
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#include "workspace.h"
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#include "client.h"
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#include <qpainter.h>
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#include <qlabel.h>
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#include <qdrawutil.h>
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#include <qstyle.h>
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#undef Bool // f**king X11
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#include <kglobal.h>
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#include <kconfig.h>
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#include <klocale.h>
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#include <qapplication.h>
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#include <qdesktopwidget.h>
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#include <qcursor.h>
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#include <kstringhandler.h>
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#include <kglobalsettings.h>
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// specify externals before namespace
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extern QPixmap* kwin_get_menu_pix_hack();
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using namespace KWinInternal;
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TabBox::TabBox( Workspace *ws, const char *name )
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: QWidget( 0, name, WStyle_Customize | WStyle_NoBorder )
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{
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no_tasks = i18n("*** No Tasks ***");
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m = DesktopMode; // init variables
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wspace = ws;
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reconfigure();
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reset();
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connect(&delayedShowTimer, SIGNAL(timeout()), this, SLOT(show()));
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}
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TabBox::~TabBox()
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{
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}
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/*!
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Sets the current mode to \a mode, either DesktopListMode or WindowsMode
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\sa mode()
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*/
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void TabBox::setMode( Mode mode )
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{
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m = mode;
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}
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/*!
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Resets the tab box to display the active client in WindowsMode, or the
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current desktop in DesktopListMode
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*/
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void TabBox::reset()
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{
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QFont f = font();
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f.setBold( TRUE );
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f.setPointSize( 14 );
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setFont( f );
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wmax = 0;
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if ( mode() == WindowsMode ) {
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client = workspace()->activeClient();
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clients.clear();
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Client* c = workspace()->nextClient( client );
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Client* stop = c;
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QFontMetrics fm( fontMetrics() );
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int cw = fm.width(no_tasks)+20;
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while ( c ) {
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if ( (options_traverse_all ||c->isOnDesktop(workspace()->currentDesktop()))
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&& (!c->isIconified() || c->mainClient() == c ) ) {
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if ( client == c )
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clients.prepend( c );
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else
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clients += c;
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cw = fm.width( c->caption() ) + 40;
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if ( cw > wmax )
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wmax = cw;
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}
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c = workspace()->nextClient( c );
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if ( c == stop )
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break;
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}
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wmax = QMAX( wmax, int(clients.count())*20 );
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}
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else { // DesktopListMode
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desk = workspace()->currentDesktop();
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}
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QRect r = KGlobalSettings::desktopGeometry(QCursor::pos());
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int w = QMIN( QMAX( wmax + 20, r.width()/3 ), r.width() );
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setGeometry( (r.width()-w)/2 + r.x(),
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r.height()/2-fontMetrics().height()*2-10 + r.y(),
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w, fontMetrics().height()*4 + 20 );
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wmax = QMIN( wmax, width() - 12 );
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}
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/*!
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Shows the next or previous item, depending on \a next
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*/
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void TabBox::nextPrev( bool next)
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{
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if ( mode() == WindowsMode ) {
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Client* firstClient = 0;
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do {
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if ( next )
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client = workspace()->nextClient(client);
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else
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client = workspace()->previousClient(client);
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if (!firstClient) {
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// When we see our first client for the second time,
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// it's time to stop.
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firstClient = client;
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}
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else if (client == firstClient) {
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// No candidates found.
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client = 0;
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break;
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}
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} while (client &&
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(( !options_traverse_all &&
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!client->isOnDesktop(workspace()->currentDesktop()) ) ||
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( client->isIconified() && client->mainClient() != client ))
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);
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if (!options_traverse_all && client
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&& !client->isOnDesktop(workspace()->currentDesktop()))
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client = 0;
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}
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else if( mode() == DesktopMode ) {
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if ( next )
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desk = workspace()->nextDesktop( desk );
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else
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desk = workspace()->previousDesktop( desk );
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}
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else { // DesktopListMode
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if ( next ) {
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desk++;
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if ( desk > workspace()->numberOfDesktops() )
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desk = 1;
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} else {
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desk--;
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if ( desk < 1 )
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desk = workspace()->numberOfDesktops();
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}
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}
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paintContents();
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}
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/*!
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Returns the currently displayed client ( only works in WindowsMode ).
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Returns 0 if no client is displayed.
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*/
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Client* TabBox::currentClient()
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{
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if ( mode() != WindowsMode )
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return 0;
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if (!workspace()->hasClient( client ))
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return 0;
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return client;
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}
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/*!
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Returns the currently displayed virtual desktop ( only works in
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DesktopListMode )
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Returns -1 if no desktop is displayed.
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*/
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int TabBox::currentDesktop()
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{
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if ( mode() == DesktopListMode || mode() == DesktopMode )
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return desk;
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else
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return -1;
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}
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/*!
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Reimplemented to raise the tab box as well
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*/
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void TabBox::showEvent( QShowEvent* )
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{
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raise();
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}
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/*!
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hide the icon box if necessary
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*/
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void TabBox::hideEvent( QHideEvent* )
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{
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}
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/*!
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Paints the tab box
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*/
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void TabBox::paintEvent( QPaintEvent* )
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{
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{
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QPainter p( this );
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style().drawPrimitive( QStyle::PE_Panel, &p, QRect( 0, 0, width(), height() ),
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colorGroup(), QStyle::Style_Default );
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style().drawPrimitive( QStyle::PE_Panel, &p, QRect( 4, 4, width()-8, height()-8 ),
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colorGroup(), QStyle::Style_Sunken );
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}
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paintContents();
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}
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/*!
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Paints the contents of the tab box. Used in paintEvent() and
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whenever the contents changes.
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*/
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void TabBox::paintContents()
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{
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QPixmap* menu_pix = kwin_get_menu_pix_hack();
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QPainter p( this );
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QRect r( 6, 6, width()-12, height()-32 );
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p.fillRect( r, colorGroup().brush( QColorGroup::Background ) );
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if ( mode () == WindowsMode ) {
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if ( currentClient() ) {
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int textw, maxlen = client->caption().length();
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int icon = client->icon().isNull() ? 0 : 42;
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QString s;
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do {
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s = QString();
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if (!client->isOnDesktop(workspace()->currentDesktop())){
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s.append(": ");
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}
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if (client->isIconified())
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s += QString("(")+KStringHandler::csqueeze(client->caption(), maxlen)+")";
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else
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s += KStringHandler::csqueeze(client->caption(), maxlen);
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textw = fontMetrics().width( s );
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maxlen--;
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} while (textw > r.width() - icon);
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r.setLeft( r.left() + (r.width() - textw)/2);
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if ( icon ) {
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int py = r.center().y() - 16;
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r.setLeft( r.left() + 20 );
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p.drawPixmap( r.left()-42, py, client->icon() );
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}
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p.drawText( r, AlignVCenter, s );
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}
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else {
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r.setBottom( r.bottom() + 20 );
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p.drawText( r, AlignCenter, no_tasks);
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}
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int x = (width() - clients.count() * 20 )/2;
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int y = height() - 26;
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for ( ClientList::ConstIterator it = clients.begin(); it != clients.end(); ++it) {
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if ( workspace()->hasClient( *it ) ) { // safety
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if ( !(*it)->miniIcon().isNull() )
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p.drawPixmap( x, y, (*it)->miniIcon() );
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else if ( menu_pix )
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p.drawPixmap( x, y, *menu_pix );
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p.setPen( (*it)==currentClient()?
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colorGroup().highlight():colorGroup().background() );
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p.drawRect( x-2, y-2, 20, 20 );
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p.setPen( colorGroup().foreground() );
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x += 20;
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}
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}
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} else { // DesktopMode || DesktopListMode
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p.drawText( r, AlignCenter, workspace()->desktopName(desk) );
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int x = (width() - workspace()->numberOfDesktops() * 20 )/2;
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int y = height() - 26;
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QFont f( font() );
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f.setPointSize( 12 );
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f.setBold( FALSE );
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p.setFont(f );
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// In DesktopMode, start at the current desktop
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// In DesktopListMode, start at desktop #1
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int iDesktop = (mode() == DesktopMode) ? workspace()->currentDesktop() : 1;
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for ( int i = 1; i <= workspace()->numberOfDesktops(); i++ ) {
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p.setPen( iDesktop == desk?
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colorGroup().highlight():colorGroup().background() );
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p.drawRect( x-2, y-2, 20, 20 );
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qDrawWinPanel( &p, QRect( x, y, 16, 16), colorGroup(), FALSE,
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&colorGroup().brush(QColorGroup::Base ) );
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p.setPen( colorGroup().text() );
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p.drawText( x, y, 16, 16, AlignCenter, QString::number(iDesktop) );
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x += 20;
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if( mode() == DesktopMode )
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iDesktop = workspace()->nextDesktop( iDesktop );
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else
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iDesktop++;
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}
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}
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}
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void TabBox::hide()
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{
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delayedShowTimer.stop();
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QWidget::hide();
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QApplication::syncX();
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XEvent otherEvent;
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while (XCheckTypedEvent (qt_xdisplay(), EnterNotify, &otherEvent ) )
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;
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}
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void TabBox::reconfigure()
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{
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KConfig * c(KGlobal::config());
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c->setGroup("TabBox");
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options_traverse_all = c->readNumEntry("TraverseAll", false );
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}
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/*!
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Rikkus: please document! (Matthias)
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Ok, here's the docs :)
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You call delayedShow() instead of show() directly.
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If the 'ShowDelay' setting is false, show() is simply called.
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Otherwise, we start a timer for the delay given in the settings and only
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do a show() when it times out.
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This means that you can alt-tab between windows and you don't see the
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tab box immediately. Not only does this make alt-tabbing faster, it gives
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less 'flicker' to the eyes. You don't need to see the tab box if you're
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just quickly switching between 2 or 3 windows. It seems to work quite
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nicely.
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*/
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void TabBox::delayedShow()
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{
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KConfig * c(KGlobal::config());
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c->setGroup("TabBox");
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bool delay = c->readNumEntry("ShowDelay", true);
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if (!delay) {
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show();
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return;
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}
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int delayTime = c->readNumEntry("DelayTime", 90);
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delayedShowTimer.start(delayTime, true);
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}
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#include "tabbox.moc"
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