385 lines
13 KiB
C++
385 lines
13 KiB
C++
/*****************************************************************
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
Copyright (C) 2007 Rivo Laks <rivolaks@hot.ee>
|
|
|
|
You can Freely distribute this program under the GNU General Public
|
|
License. See the file "COPYING" for the exact licensing terms.
|
|
******************************************************************/
|
|
|
|
|
|
#include "presentwindows.h"
|
|
|
|
#include <client.h>
|
|
#include <workspace.h>
|
|
|
|
#include <kactioncollection.h>
|
|
#include <kaction.h>
|
|
#include <klocale.h>
|
|
|
|
#include <math.h>
|
|
|
|
|
|
|
|
// Note that currently effects need to be manually enabled in the EffectsHandler
|
|
// class constructor (in effects.cpp).
|
|
|
|
namespace KWinInternal
|
|
{
|
|
|
|
|
|
PresentWindowsEffect::PresentWindowsEffect()
|
|
{
|
|
mActivated = false;
|
|
mActiveness = 0.0;
|
|
|
|
KActionCollection* actionCollection = new KActionCollection( this );
|
|
KAction* a = (KAction*)actionCollection->addAction( "Expose" );
|
|
a->setText( i18n("Toggle Expose effect" ));
|
|
a->setGlobalShortcut(KShortcut(Qt::CTRL + Qt::Key_F10));
|
|
connect(a, SIGNAL(triggered(bool)), this, SLOT(toggleActive()));
|
|
}
|
|
|
|
|
|
void PresentWindowsEffect::prePaintScreen( int* mask, QRegion* region, int time )
|
|
{
|
|
// How long does it take for the effect to get it's full strength (in ms)
|
|
const float changeTime = 300;
|
|
if(mActivated)
|
|
mActiveness = qMin(1.0f, mActiveness + time/changeTime);
|
|
else if(mActiveness > 0.0f)
|
|
{
|
|
mActiveness = qMax(0.0f, mActiveness - time/changeTime);
|
|
if(mActiveness <= 0.0f)
|
|
effectTerminated();
|
|
}
|
|
|
|
// We need to mark the screen as transformed. Otherwise the whole screen
|
|
// won't be repainted, resulting in artefacts
|
|
if( mActiveness > 0.0f )
|
|
*mask |= Scene::PAINT_SCREEN_TRANSFORMED;
|
|
|
|
effects->prePaintScreen(mask, region, time);
|
|
}
|
|
|
|
void PresentWindowsEffect::prePaintWindow( EffectWindow* w, int* mask, QRegion* region, int time )
|
|
{
|
|
if( mActiveness > 0.0f && mWindowData.contains(w->window()) )
|
|
{
|
|
// This window will be transformed by the effect
|
|
*mask |= Scene::PAINT_WINDOW_TRANSFORMED;
|
|
*mask &= ~Scene::PAINT_WINDOW_DISABLED;
|
|
// If it's minimized window and effect is not fully active, then apply
|
|
// some transparency
|
|
if( mActiveness < 1.0f && static_cast< Client* >( w->window() )->isMinimized() )
|
|
*mask |= Scene::PAINT_WINDOW_TRANSLUCENT;
|
|
}
|
|
|
|
effects->prePaintWindow( w, mask, region, time );
|
|
}
|
|
|
|
void PresentWindowsEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
|
|
{
|
|
if(mActiveness > 0.0f && mWindowData.contains(w->window()))
|
|
{
|
|
// Change window's position and scale
|
|
const WindowData& windata = mWindowData[w->window()];
|
|
data.xScale = interpolate(data.xScale, windata.scale, mActiveness);
|
|
data.yScale = interpolate(data.xScale, windata.scale, mActiveness);
|
|
data.xTranslate = (int)interpolate(data.xTranslate, windata.area.left() - w->window()->x(), mActiveness);
|
|
data.yTranslate = (int)interpolate(data.yTranslate, windata.area.top() - w->window()->y(), mActiveness);
|
|
// Darken all windows except for the one under the cursor
|
|
if( !windata.area.contains(cursorPos()) )
|
|
data.brightness *= interpolate(1.0, 0.7, mActiveness);
|
|
// If it's minimized window and effect is not fully active, then apply
|
|
// some transparency
|
|
if( mActiveness < 1.0f && static_cast< Client* >( w->window() )->isMinimized() )
|
|
data.opacity *= interpolate(0.0, 1.0, mActiveness);
|
|
}
|
|
|
|
// Call the next effect.
|
|
effects->paintWindow( w, mask, region, data );
|
|
}
|
|
|
|
void PresentWindowsEffect::postPaintScreen()
|
|
{
|
|
// If mActiveness is between 0 and 1, the effect is still in progress and the
|
|
// workspace has to be repainted during the next pass
|
|
if( mActiveness > 0.0 && mActiveness < 1.0 )
|
|
workspace()->addDamageFull(); // trigger next animation repaint
|
|
|
|
// Call the next effect.
|
|
effects->postPaintScreen();
|
|
}
|
|
|
|
void PresentWindowsEffect::windowInputMouseEvent( Window w, QEvent* e )
|
|
{
|
|
assert( w == mInput );
|
|
if( e->type() != QEvent::MouseButtonPress )
|
|
return;
|
|
|
|
// Find out which window (if any) was clicked and activate it
|
|
QPoint pos = static_cast< QMouseEvent* >( e )->pos();
|
|
for( QMap<Toplevel*, WindowData>::iterator it = mWindowData.begin();
|
|
it != mWindowData.end(); ++it )
|
|
{
|
|
if( it.value().area.contains(pos) )
|
|
{
|
|
effects->activateWindow( it.key()->effectWindow());
|
|
}
|
|
}
|
|
|
|
// Deactivate effect, no matter if any window was actually activated
|
|
setActive(false);
|
|
}
|
|
|
|
void PresentWindowsEffect::windowActivated( EffectWindow* )
|
|
{
|
|
rearrangeWindows();
|
|
}
|
|
|
|
void PresentWindowsEffect::windowClosed( EffectWindow* )
|
|
{
|
|
rearrangeWindows();
|
|
}
|
|
|
|
void PresentWindowsEffect::setActive(bool active)
|
|
{
|
|
mActivated = active;
|
|
rearrangeWindows();
|
|
if( mActivated && mActiveness == 0.0f )
|
|
effectActivated();
|
|
}
|
|
|
|
void PresentWindowsEffect::effectActivated()
|
|
{
|
|
// Create temporary input window to catch mouse events
|
|
mInput = effects->createInputWindow( this, 0, 0, displayWidth(), displayHeight(), Qt::PointingHandCursor );
|
|
// TODO: maybe also create a KAction so that ressing Esc would terminate the effect?
|
|
}
|
|
|
|
void PresentWindowsEffect::effectTerminated()
|
|
{
|
|
// Destroy the temporary input window
|
|
effects->destroyInputWindow( mInput );
|
|
}
|
|
|
|
void PresentWindowsEffect::rearrangeWindows()
|
|
{
|
|
if( !mActivated )
|
|
return;
|
|
|
|
mWindowData.clear();
|
|
|
|
const ClientList& originalclientlist = workspace()->stackingOrder();
|
|
// Filter out special windows such as panels and taskbars
|
|
ClientList clientlist;
|
|
foreach( Client* client, originalclientlist )
|
|
{
|
|
if( client->isSpecialWindow() )
|
|
continue;
|
|
// TODO: make it possible to show windows of all desktops (needs config
|
|
// option)
|
|
if( !client->effectWindow()->isOnCurrentDesktop() )
|
|
continue;
|
|
clientlist.append(client);
|
|
}
|
|
|
|
// Calculate new positions and scales for windows
|
|
calculateWindowTransformationsKompose( clientlist );
|
|
|
|
// Schedule entire desktop to be repainted
|
|
workspace()->addDamageFull();
|
|
}
|
|
|
|
void PresentWindowsEffect::calculateWindowTransformationsDumb(ClientList clientlist)
|
|
{
|
|
// Calculate number of rows/cols
|
|
int rows = clientlist.count() / 4 + 1;
|
|
int cols = clientlist.count() / rows + clientlist.count() % rows;
|
|
// Get rect which we can use on current desktop. This excludes e.g. panels
|
|
QRect placementRect = workspace()->clientArea( PlacementArea, QPoint( 0, 0 ), 0 );
|
|
// Size of one cell
|
|
int cellwidth = placementRect.width() / cols;
|
|
int cellheight = placementRect.height() / rows;
|
|
kDebug() << k_funcinfo << "Got " << clientlist.count() << " clients, using " << rows << "x" << cols << " grid" << endl;
|
|
|
|
// Calculate position and scale factor for each window
|
|
int i = 0;
|
|
foreach( Client* client, clientlist )
|
|
{
|
|
|
|
// Row/Col of this window
|
|
int r = i / cols;
|
|
int c = i % cols;
|
|
mWindowData[client].scale = qMin(cellwidth / (float)client->width(), cellheight / (float)client->height());
|
|
mWindowData[client].area.setLeft(placementRect.left() + cellwidth * c);
|
|
mWindowData[client].area.setTop(placementRect.top() + cellheight * r);
|
|
mWindowData[client].area.setWidth((int)(client->width() * mWindowData[client].scale));
|
|
mWindowData[client].area.setHeight((int)(client->height() * mWindowData[client].scale));
|
|
|
|
kDebug() << k_funcinfo << "Window '" << client->caption() << "' gets moved to (" <<
|
|
mWindowData[client].area.left() << "; " << mWindowData[client].area.right() <<
|
|
"), scale: " << mWindowData[client].scale << endl;
|
|
i++;
|
|
}
|
|
}
|
|
|
|
float PresentWindowsEffect::clientAspectRatio(Client* c)
|
|
{
|
|
return c->width() / (float)c->height();
|
|
}
|
|
|
|
int PresentWindowsEffect::clientWidthForHeight(Client* c, int h)
|
|
{
|
|
return (int)((h / (float)c->height()) * c->width());
|
|
}
|
|
|
|
int PresentWindowsEffect::clientHeightForWidth(Client* c, int w)
|
|
{
|
|
return (int)((w / (float)c->width()) * c->height());
|
|
}
|
|
|
|
void PresentWindowsEffect::calculateWindowTransformationsKompose(ClientList clientlist)
|
|
{
|
|
// Get rect which we can use on current desktop. This excludes e.g. panels
|
|
QRect availRect = workspace()->clientArea( PlacementArea, QPoint( 0, 0 ), 0 );
|
|
|
|
// Following code is taken from Kompose 0.5.4, src/komposelayout.cpp
|
|
|
|
int spacing = 10;
|
|
int rows, columns;
|
|
float parentRatio = availRect.width() / (float)availRect.height();
|
|
// Use more columns than rows when parent's width > parent's height
|
|
if ( parentRatio > 1 )
|
|
{
|
|
columns = (int)ceil( sqrt(clientlist.count()) );
|
|
rows = (int)ceil( (double)clientlist.count() / (double)columns );
|
|
}
|
|
else
|
|
{
|
|
rows = (int)ceil( sqrt(clientlist.count()) );
|
|
columns = (int)ceil( (double)clientlist.count() / (double)rows );
|
|
}
|
|
kDebug() << k_funcinfo << "Using " << rows << " rows & " << columns << " columns for " << clientlist.count() << " clients" << endl;
|
|
|
|
// Calculate width & height
|
|
int w = (availRect.width() - (columns+1) * spacing ) / columns;
|
|
int h = (availRect.height() - (rows+1) * spacing ) / rows;
|
|
|
|
ClientList::iterator it( clientlist.begin() );
|
|
QList<QRect> geometryRects;
|
|
QList<int> maxRowHeights;
|
|
// Process rows
|
|
for ( int i=0; i<rows; ++i )
|
|
{
|
|
int xOffsetFromLastCol = 0;
|
|
int maxHeightInRow = 0;
|
|
// Process columns
|
|
for ( int j=0; j<columns; ++j )
|
|
{
|
|
Client *client;
|
|
|
|
// Check for end of List
|
|
if ( it == clientlist.end() )
|
|
break;
|
|
client = *it;
|
|
|
|
// Calculate width and height of widget
|
|
float ratio = clientAspectRatio(client);
|
|
|
|
int widgetw = 100;
|
|
int widgeth = 100;
|
|
int usableW = w;
|
|
int usableH = h;
|
|
|
|
// use width of two boxes if there is no right neighbour
|
|
if (client == clientlist.last() && j != columns-1)
|
|
{
|
|
usableW = 2*w;
|
|
}
|
|
++it; // We need access to the neighbour in the following
|
|
// expand if right neighbour has ratio < 1
|
|
if (j != columns-1 && it != clientlist.end() && clientAspectRatio(*it) < 1)
|
|
{
|
|
int addW = w - clientWidthForHeight(*it, h);
|
|
if ( addW > 0 )
|
|
{
|
|
usableW = w + addW;
|
|
}
|
|
}
|
|
|
|
if ( ratio == -1 )
|
|
{
|
|
widgetw = w;
|
|
widgeth = h;
|
|
}
|
|
else
|
|
{
|
|
double widthForHeight = clientWidthForHeight(client, usableH);
|
|
double heightForWidth = clientHeightForWidth(client, usableW);
|
|
if ( (ratio >= 1.0 && heightForWidth <= usableH) ||
|
|
(ratio < 1.0 && widthForHeight > usableW) )
|
|
{
|
|
widgetw = usableW;
|
|
widgeth = (int)heightForWidth;
|
|
}
|
|
else if ( (ratio < 1.0 && widthForHeight <= usableW) ||
|
|
(ratio >= 1.0 && heightForWidth > usableH) )
|
|
{
|
|
widgeth = usableH;
|
|
widgetw = (int)widthForHeight;
|
|
}
|
|
}
|
|
|
|
// Set the Widget's size
|
|
|
|
int alignmentXoffset = 0;
|
|
int alignmentYoffset = 0;
|
|
if ( i==0 && h > widgeth )
|
|
alignmentYoffset = h - widgeth;
|
|
if ( j==0 && w > widgetw )
|
|
alignmentXoffset = w - widgetw;
|
|
QRect geom( availRect.x() + j * (w + spacing) + spacing + alignmentXoffset + xOffsetFromLastCol,
|
|
availRect.y() + i * (h + spacing) + spacing + alignmentYoffset,
|
|
widgetw, widgeth );
|
|
geometryRects.append(geom);
|
|
|
|
// Set the x offset for the next column
|
|
if (alignmentXoffset==0)
|
|
xOffsetFromLastCol += widgetw-w;
|
|
if (maxHeightInRow < widgeth)
|
|
maxHeightInRow = widgeth;
|
|
}
|
|
maxRowHeights.append(maxHeightInRow);
|
|
}
|
|
|
|
int topOffset = 0;
|
|
for( int i = 0; i < rows; i++ )
|
|
{
|
|
for( int j = 0; j < columns; j++ )
|
|
{
|
|
int pos = i*columns + j;
|
|
if(pos >= clientlist.count())
|
|
break;
|
|
|
|
Client* client = clientlist[pos];
|
|
QRect geom = geometryRects[pos];
|
|
geom.setY( geom.y() + topOffset );
|
|
mWindowData[client].area = geom;
|
|
mWindowData[client].scale = geom.width() / (float)client->width();
|
|
|
|
kDebug() << k_funcinfo << "Window '" << client->caption() << "' gets moved to (" <<
|
|
mWindowData[client].area.left() << "; " << mWindowData[client].area.right() <<
|
|
"), scale: " << mWindowData[client].scale << endl;
|
|
}
|
|
if ( maxRowHeights[i]-h > 0 )
|
|
topOffset += maxRowHeights[i]-h;
|
|
}
|
|
}
|
|
|
|
|
|
} // namespace
|
|
#include "presentwindows.moc"
|
|
|