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Diffstat (limited to 'examples/demo/qasteroids/view.cpp')
| -rw-r--r-- | examples/demo/qasteroids/view.cpp | 908 |
1 files changed, 908 insertions, 0 deletions
diff --git a/examples/demo/qasteroids/view.cpp b/examples/demo/qasteroids/view.cpp new file mode 100644 index 0000000..d6ccd5d --- /dev/null +++ b/examples/demo/qasteroids/view.cpp @@ -0,0 +1,908 @@ +/* + * KAsteroids - Copyright (c) Martin R. Jones 1997 + * + * Part of the KDE project + */ + +#include <stdlib.h> +#include <math.h> +#include <qapplication.h> +#include <qkeycode.h> +#include <qaccel.h> +#include <qmessagebox.h> + +#include "view.h" + +#define IMG_BACKGROUND "qasteroids/bg.png" + +#define REFRESH_DELAY 33 +#define SHIP_SPEED 0.3 +#define MISSILE_SPEED 10.0 +#define SHIP_STEPS 64 +#define ROTATE_RATE 2 +#define SHIELD_ON_COST 1 +#define SHIELD_HIT_COST 30 +#define BRAKE_ON_COST 4 + +#define MAX_ROCK_SPEED 2.5 +#define MAX_POWERUP_SPEED 1.5 +#define MAX_SHIP_SPEED 12 +#define MAX_BRAKES 5 +#define MAX_SHIELDS 5 +#define MAX_FIREPOWER 5 + +#define TEXT_SPEED 4 + +#define PI_X_2 6.283185307 +#ifndef M_PI +#define M_PI 3.141592654 +#endif + +static struct +{ + int id; + const char *path; + int frames; +} +kas_animations [] = +{ + { ID_ROCK_LARGE, "rock1/rock1%1.png", 32 }, + { ID_ROCK_MEDIUM, "rock2/rock2%1.png", 32 }, + { ID_ROCK_SMALL, "rock3/rock3%1.png", 32 }, + { ID_SHIP, "ship/ship%1.png", 32 }, + { ID_MISSILE, "missile/missile.png", 1 }, + { ID_BIT, "bits/bits%1.png", 16 }, + { ID_EXHAUST, "exhaust/exhaust.png", 1 }, + { ID_ENERGY_POWERUP, "powerups/energy.png", 1 }, +// { ID_TELEPORT_POWERUP, "powerups/teleport%1.png", 12 }, + { ID_BRAKE_POWERUP, "powerups/brake.png", 1 }, + { ID_SHIELD_POWERUP, "powerups/shield.png", 1 }, + { ID_SHOOT_POWERUP, "powerups/shoot.png", 1 }, + { ID_SHIELD, "shield/shield%1.png", 6 }, + { 0, 0, 0 } +}; + + + +KAsteroidsView::KAsteroidsView( QWidget *parent, const char *name ) + : QWidget( parent, name ), + field(640, 440), + view(&field,this) +{ + view.setVScrollBarMode( QScrollView::AlwaysOff ); + view.setHScrollBarMode( QScrollView::AlwaysOff ); + view.viewport()->setFocusProxy( this ); + rocks.setAutoDelete( TRUE ); + missiles.setAutoDelete( TRUE ); + bits.setAutoDelete( TRUE ); + powerups.setAutoDelete( TRUE ); + exhaust.setAutoDelete( TRUE ); + + field.setBackgroundColor( black ); + QPixmap pm( IMG_BACKGROUND ); + field.setBackgroundPixmap( pm ); + + textSprite = new QCanvasText( &field ); + QFont font( "helvetica", 18 ); + textSprite->setFont( font ); + + shield = 0; + shieldOn = FALSE; + refreshRate = REFRESH_DELAY; + + initialized = readSprites(); + + shieldTimer = new QTimer( this ); + connect( shieldTimer, SIGNAL(timeout()), this, SLOT(hideShield()) ); + mTimerId = -1; + + shipPower = MAX_POWER_LEVEL; + vitalsChanged = TRUE; + can_destroy_powerups = FALSE; + + mPaused = TRUE; + + if ( !initialized ) { + textSprite->setText( tr("Error: Cannot read sprite images") ); + textSprite->setColor( red ); + textSprite->move( (field.width()-textSprite->boundingRect().width()) / 2, + (field.height()-textSprite->boundingRect().height()) / 2 ); + textSprite->show(); + } +} + +// - - - + +KAsteroidsView::~KAsteroidsView() +{ +} + +// - - - + +void KAsteroidsView::reset() +{ + if ( !initialized ) + return; + rocks.clear(); + missiles.clear(); + bits.clear(); + powerups.clear(); + exhaust.clear(); + + shotsFired = 0; + shotsHit = 0; + + rockSpeed = 1.0; + powerupSpeed = 1.0; + mFrameNum = 0; + mPaused = FALSE; + + ship->hide(); + shield->hide(); +/* + if ( mTimerId >= 0 ) { + killTimer( mTimerId ); + mTimerId = -1; + } +*/ +} + +// - -- + +void KAsteroidsView::newGame() +{ + if ( !initialized ) + return; + if ( shieldOn ) + { + shield->hide(); + shieldOn = FALSE; + } + reset(); + if ( mTimerId < 0 ) + mTimerId = startTimer( REFRESH_DELAY ); + emit updateVitals(); +} + +// - - - + +void KAsteroidsView::endGame() +{ +} + +void KAsteroidsView::pause( bool p ) +{ + if ( !initialized ) + return; + if ( !mPaused && p ) { + if ( mTimerId >= 0 ) { + killTimer( mTimerId ); + mTimerId = -1; + } + } else if ( mPaused && !p ) + mTimerId = startTimer( REFRESH_DELAY ); + mPaused = p; +} + +// - - - + +void KAsteroidsView::newShip() +{ + if ( !initialized ) + return; + ship->move( width()/2, height()/2, 0 ); + shield->move( width()/2, height()/2, 0 ); + ship->setVelocity( 0.0, 0.0 ); + shipDx = 0; + shipDy = 0; + shipAngle = 0; + rotateL = FALSE; + rotateR = FALSE; + thrustShip = FALSE; + shootShip = FALSE; + brakeShip = FALSE; + teleportShip = FALSE; + shieldOn = TRUE; + shootDelay = 0; + shipPower = MAX_POWER_LEVEL; + rotateRate = ROTATE_RATE; + rotateSlow = 0; + + mBrakeCount = 0; + mTeleportCount = 0; + mShootCount = 0; + + ship->show(); + shield->show(); + mShieldCount = 1; // just in case the ship appears on a rock. + shieldTimer->start( 1000, TRUE ); +} + +void KAsteroidsView::setShield( bool s ) +{ + if ( !initialized ) + return; + if ( shieldTimer->isActive() && !s ) { + shieldTimer->stop(); + hideShield(); + } else { + shieldOn = s && mShieldCount; + } +} + +void KAsteroidsView::brake( bool b ) +{ + if ( !initialized ) + return; + if ( mBrakeCount ) + { + if ( brakeShip && !b ) + { + rotateL = FALSE; + rotateR = FALSE; + thrustShip = FALSE; + rotateRate = ROTATE_RATE; + } + + brakeShip = b; + } +} + +// - - - + +bool KAsteroidsView::readSprites() +{ + QString sprites_prefix = "qasteroids/sprites/"; + + int i = 0; + while ( kas_animations[i].id ) + { + QCanvasPixmapArray *anim = + new QCanvasPixmapArray( sprites_prefix + kas_animations[i].path, + kas_animations[i].frames ); + if ( !anim->isValid() ) + return FALSE; + animation.insert( kas_animations[i].id, anim ); + i++; + } + + ship = new QCanvasSprite( animation[ID_SHIP], &field ); + ship->hide(); + + shield = new KShield( animation[ID_SHIELD], &field ); + shield->hide(); + + return (ship->image(0) && shield->image(0)); +} + +// - - - + +void KAsteroidsView::addRocks( int num ) +{ + if ( !initialized ) + return; + for ( int i = 0; i < num; i++ ) + { + KRock *rock = new KRock( animation[ID_ROCK_LARGE], &field, + ID_ROCK_LARGE, randInt(2), randInt(2) ? -1 : 1 ); + double dx = (2.0 - randDouble()*4.0) * rockSpeed; + double dy = (2.0 - randDouble()*4.0) * rockSpeed; + rock->setVelocity( dx, dy ); + rock->setFrame( randInt( rock->frameCount() ) ); + if ( dx > 0 ) + { + if ( dy > 0 ) + rock->move( 5, 5, 0 ); + else + rock->move( 5, field.height() - 25, 0 ); + } + else + { + if ( dy > 0 ) + rock->move( field.width() - 25, 5, 0 ); + else + rock->move( field.width() - 25, field.height() - 25, 0 ); + } + rock->show( ); + rocks.append( rock ); + } +} + +// - - - + +void KAsteroidsView::showText( const QString &text, const QColor &color, bool scroll ) +{ + if ( !initialized ) + return; + textSprite->setText( text ); + textSprite->setColor( color ); + + if ( scroll ) { + textSprite->move( (field.width()-textSprite->boundingRect().width()) / 2, + -textSprite->boundingRect().height() ); + textDy = TEXT_SPEED; + } else { + textSprite->move( (field.width()-textSprite->boundingRect().width()) / 2, + (field.height()-textSprite->boundingRect().height()) / 2 ); + textDy = 0; + } + textSprite->show(); +} + +// - - - + +void KAsteroidsView::hideText() +{ + textDy = -TEXT_SPEED; +} + +// - - - + +void KAsteroidsView::resizeEvent(QResizeEvent* event) +{ + QWidget::resizeEvent(event); + field.resize(width()-4, height()-4); + view.resize(width(),height()); +} + +// - - - + +void KAsteroidsView::timerEvent( QTimerEvent * ) +{ + field.advance(); + + QCanvasSprite *rock; + + // move rocks forward + for ( rock = rocks.first(); rock; rock = rocks.next() ) { + ((KRock *)rock)->nextFrame(); + wrapSprite( rock ); + } + + wrapSprite( ship ); + + // check for missile collision with rocks. + processMissiles(); + + // these are generated when a ship explodes + for ( KBit *bit = bits.first(); bit; bit = bits.next() ) + { + if ( bit->expired() ) + { + bits.removeRef( bit ); + } + else + { + bit->growOlder(); + bit->setFrame( ( bit->frame()+1 ) % bit->frameCount() ); + } + } + + for ( KExhaust *e = exhaust.first(); e; e = exhaust.next() ) + exhaust.removeRef( e ); + + // move / rotate ship. + // check for collision with a rock. + processShip(); + + // move powerups and check for collision with player and missiles + processPowerups(); + + if ( textSprite->isVisible() ) + { + if ( textDy < 0 && + textSprite->boundingRect().y() <= -textSprite->boundingRect().height() ) { + textSprite->hide(); + } else { + textSprite->moveBy( 0, textDy ); + } + if ( textSprite->boundingRect().y() > (field.height()-textSprite->boundingRect().height())/2 ) + textDy = 0; + } + + if ( vitalsChanged && !(mFrameNum % 10) ) { + emit updateVitals(); + vitalsChanged = FALSE; + } + + mFrameNum++; +} + +void KAsteroidsView::wrapSprite( QCanvasItem *s ) +{ + int x = int(s->x() + s->boundingRect().width() / 2); + int y = int(s->y() + s->boundingRect().height() / 2); + + if ( x > field.width() ) + s->move( s->x() - field.width(), s->y() ); + else if ( x < 0 ) + s->move( field.width() + s->x(), s->y() ); + + if ( y > field.height() ) + s->move( s->x(), s->y() - field.height() ); + else if ( y < 0 ) + s->move( s->x(), field.height() + s->y() ); +} + +// - - - + +void KAsteroidsView::rockHit( QCanvasItem *hit ) +{ + KPowerup *nPup = 0; + int rnd = int(randDouble()*30.0) % 30; + switch( rnd ) + { + case 4: + case 5: + nPup = new KPowerup( animation[ID_ENERGY_POWERUP], &field, + ID_ENERGY_POWERUP ); + break; + case 10: +// nPup = new KPowerup( animation[ID_TELEPORT_POWERUP], &field, +// ID_TELEPORT_POWERUP ); + break; + case 15: + nPup = new KPowerup( animation[ID_BRAKE_POWERUP], &field, + ID_BRAKE_POWERUP ); + break; + case 20: + nPup = new KPowerup( animation[ID_SHIELD_POWERUP], &field, + ID_SHIELD_POWERUP ); + break; + case 24: + case 25: + nPup = new KPowerup( animation[ID_SHOOT_POWERUP], &field, + ID_SHOOT_POWERUP ); + break; + } + if ( nPup ) + { + double r = 0.5 - randDouble(); + nPup->move( hit->x(), hit->y(), 0 ); + nPup->setVelocity( hit->xVelocity() + r, hit->yVelocity() + r ); + nPup->show( ); + powerups.append( nPup ); + } + + if ( hit->rtti() == ID_ROCK_LARGE || hit->rtti() == ID_ROCK_MEDIUM ) + { + // break into smaller rocks + double addx[4] = { 1.0, 1.0, -1.0, -1.0 }; + double addy[4] = { -1.0, 1.0, -1.0, 1.0 }; + + double dx = hit->xVelocity(); + double dy = hit->yVelocity(); + + double maxRockSpeed = MAX_ROCK_SPEED * rockSpeed; + if ( dx > maxRockSpeed ) + dx = maxRockSpeed; + else if ( dx < -maxRockSpeed ) + dx = -maxRockSpeed; + if ( dy > maxRockSpeed ) + dy = maxRockSpeed; + else if ( dy < -maxRockSpeed ) + dy = -maxRockSpeed; + + QCanvasSprite *nrock; + + for ( int i = 0; i < 4; i++ ) + { + double r = rockSpeed/2 - randDouble()*rockSpeed; + if ( hit->rtti() == ID_ROCK_LARGE ) + { + nrock = new KRock( animation[ID_ROCK_MEDIUM], &field, + ID_ROCK_MEDIUM, randInt(2), randInt(2) ? -1 : 1 ); + emit rockHit( 0 ); + } + else + { + nrock = new KRock( animation[ID_ROCK_SMALL], &field, + ID_ROCK_SMALL, randInt(2), randInt(2) ? -1 : 1 ); + emit rockHit( 1 ); + } + + nrock->move( hit->x(), hit->y(), 0 ); + nrock->setVelocity( dx+addx[i]*rockSpeed+r, dy+addy[i]*rockSpeed+r ); + nrock->setFrame( randInt( nrock->frameCount() ) ); + nrock->show( ); + rocks.append( nrock ); + } + } + else if ( hit->rtti() == ID_ROCK_SMALL ) + emit rockHit( 2 ); + rocks.removeRef( (QCanvasSprite *)hit ); + if ( rocks.count() == 0 ) + emit rocksRemoved(); +} + +void KAsteroidsView::reducePower( int val ) +{ + shipPower -= val; + if ( shipPower <= 0 ) + { + shipPower = 0; + thrustShip = FALSE; + if ( shieldOn ) + { + shieldOn = FALSE; + shield->hide(); + } + } + vitalsChanged = TRUE; +} + +void KAsteroidsView::addExhaust( double x, double y, double dx, + double dy, int count ) +{ + for ( int i = 0; i < count; i++ ) + { + KExhaust *e = new KExhaust( animation[ID_EXHAUST], &field ); + e->move( x + 2 - randDouble()*4, y + 2 - randDouble()*4 ); + e->setVelocity( dx, dy ); + e->show( ); + exhaust.append( e ); + } +} + +void KAsteroidsView::processMissiles() +{ + KMissile *missile; + + // if a missile has hit a rock, remove missile and break rock into smaller + // rocks or remove completely. + QPtrListIterator<KMissile> it(missiles); + + for ( ; it.current(); ++it ) + { + missile = it.current(); + missile->growOlder(); + + if ( missile->expired() ) + { + missiles.removeRef( missile ); + continue; + } + + wrapSprite( missile ); + + QCanvasItemList hits = missile->collisions( TRUE ); + QCanvasItemList::Iterator hit; + for ( hit = hits.begin(); hit != hits.end(); ++hit ) + { + if ( (*hit)->rtti() >= ID_ROCK_LARGE && + (*hit)->rtti() <= ID_ROCK_SMALL ) + { + shotsHit++; + rockHit( *hit ); + missiles.removeRef( missile ); + break; + } + } + } +} + +// - - - + +void KAsteroidsView::processShip() +{ + if ( ship->isVisible() ) + { + if ( shieldOn ) + { + shield->show(); + reducePower( SHIELD_ON_COST ); + static int sf = 0; + sf++; + + if ( sf % 2 ) + shield->setFrame( (shield->frame()+1) % shield->frameCount() ); + shield->move( ship->x() - 9, ship->y() - 9 ); + + QCanvasItemList hits = shield->collisions( TRUE ); + QCanvasItemList::Iterator it; + for ( it = hits.begin(); it != hits.end(); ++it ) + { + if ( (*it)->rtti() >= ID_ROCK_LARGE && + (*it)->rtti() <= ID_ROCK_SMALL ) + { + int factor; + switch ( (*it)->rtti() ) + { + case ID_ROCK_LARGE: + factor = 3; + break; + + case ID_ROCK_MEDIUM: + factor = 2; + break; + + default: + factor = 1; + } + + if ( factor > mShieldCount ) + { + // shield not strong enough + shieldOn = FALSE; + break; + } + rockHit( *it ); + // the more shields we have the less costly + reducePower( factor * (SHIELD_HIT_COST - mShieldCount*2) ); + } + } + } + + if ( !shieldOn ) + { + shield->hide(); + QCanvasItemList hits = ship->collisions( TRUE ); + QCanvasItemList::Iterator it; + for ( it = hits.begin(); it != hits.end(); ++it ) + { + if ( (*it)->rtti() >= ID_ROCK_LARGE && + (*it)->rtti() <= ID_ROCK_SMALL ) + { + KBit *bit; + for ( int i = 0; i < 12; i++ ) + { + bit = new KBit( animation[ID_BIT], &field ); + bit->move( ship->x() + 5 - randDouble() * 10, + ship->y() + 5 - randDouble() * 10, + randInt(bit->frameCount()) ); + bit->setVelocity( 1-randDouble()*2, + 1-randDouble()*2 ); + bit->setDeath( 60 + randInt(60) ); + bit->show( ); + bits.append( bit ); + } + ship->hide(); + shield->hide(); + emit shipKilled(); + break; + } + } + } + + + if ( rotateSlow ) + rotateSlow--; + + if ( rotateL ) + { + shipAngle -= rotateSlow ? 1 : rotateRate; + if ( shipAngle < 0 ) + shipAngle += SHIP_STEPS; + } + + if ( rotateR ) + { + shipAngle += rotateSlow ? 1 : rotateRate; + if ( shipAngle >= SHIP_STEPS ) + shipAngle -= SHIP_STEPS; + } + + double angle = shipAngle * PI_X_2 / SHIP_STEPS; + double cosangle = cos( angle ); + double sinangle = sin( angle ); + + if ( brakeShip ) + { + thrustShip = FALSE; + rotateL = FALSE; + rotateR = FALSE; + rotateRate = ROTATE_RATE; + if ( fabs(shipDx) < 2.5 && fabs(shipDy) < 2.5 ) + { + shipDx = 0.0; + shipDy = 0.0; + ship->setVelocity( shipDx, shipDy ); + brakeShip = FALSE; + } + else + { + double motionAngle = atan2( -shipDy, -shipDx ); + if ( angle > M_PI ) + angle -= PI_X_2; + double angleDiff = angle - motionAngle; + if ( angleDiff > M_PI ) + angleDiff = PI_X_2 - angleDiff; + else if ( angleDiff < -M_PI ) + angleDiff = PI_X_2 + angleDiff; + double fdiff = fabs( angleDiff ); + if ( fdiff > 0.08 ) + { + if ( angleDiff > 0 ) + rotateL = TRUE; + else if ( angleDiff < 0 ) + rotateR = TRUE; + if ( fdiff > 0.6 ) + rotateRate = mBrakeCount + 1; + else if ( fdiff > 0.4 ) + rotateRate = 2; + else + rotateRate = 1; + + if ( rotateRate > 5 ) + rotateRate = 5; + } + else if ( fabs(shipDx) > 1 || fabs(shipDy) > 1 ) + { + thrustShip = TRUE; + // we'll make braking a bit faster + shipDx += cosangle/6 * (mBrakeCount - 1); + shipDy += sinangle/6 * (mBrakeCount - 1); + reducePower( BRAKE_ON_COST ); + addExhaust( ship->x() + 20 - cosangle*22, + ship->y() + 20 - sinangle*22, + shipDx-cosangle, shipDy-sinangle, + mBrakeCount+1 ); + } + } + } + + if ( thrustShip ) + { + // The ship has a terminal velocity, but trying to go faster + // still uses fuel (can go faster diagonally - don't care). + double thrustx = cosangle/4; + double thrusty = sinangle/4; + if ( fabs(shipDx + thrustx) < MAX_SHIP_SPEED ) + shipDx += thrustx; + if ( fabs(shipDy + thrusty) < MAX_SHIP_SPEED ) + shipDy += thrusty; + ship->setVelocity( shipDx, shipDy ); + reducePower( 1 ); + addExhaust( ship->x() + 20 - cosangle*20, + ship->y() + 20 - sinangle*20, + shipDx-cosangle, shipDy-sinangle, 3 ); + } + + ship->setFrame( shipAngle >> 1 ); + + if ( shootShip ) + { + if ( !shootDelay && (int)missiles.count() < mShootCount + 2 ) + { + KMissile *missile = new KMissile( animation[ID_MISSILE], &field ); + missile->move( 21+ship->x()+cosangle*21, + 21+ship->y()+sinangle*21, 0 ); + missile->setVelocity( shipDx + cosangle*MISSILE_SPEED, + shipDy + sinangle*MISSILE_SPEED ); + missile->show( ); + missiles.append( missile ); + shotsFired++; + reducePower( 1 ); + + shootDelay = 5; + } + + if ( shootDelay ) + shootDelay--; + } + + if ( teleportShip ) + { + int ra = rand() % 10; + if( ra == 0 ) + ra += rand() % 20; + int xra = ra * 60 + ( (rand() % 20) * (rand() % 20) ); + int yra = ra * 50 - ( (rand() % 20) * (rand() % 20) ); + ship->move( xra, yra ); + } + + vitalsChanged = TRUE; + } +} + +// - - - + +void KAsteroidsView::processPowerups() +{ + if ( !powerups.isEmpty() ) + { + // if player gets the powerup remove it from the screen, if option + // "Can destroy powerups" is enabled and a missile hits the powerup + // destroy it + + KPowerup *pup; + QPtrListIterator<KPowerup> it( powerups ); + + for( ; it.current(); ++it ) + { + pup = it.current(); + pup->growOlder(); + + if( pup->expired() ) + { + powerups.removeRef( pup ); + continue; + } + + wrapSprite( pup ); + + QCanvasItemList hits = pup->collisions( TRUE ); + QCanvasItemList::Iterator it; + for ( it = hits.begin(); it != hits.end(); ++it ) + { + if ( (*it) == ship ) + { + switch( pup->rtti() ) + { + case ID_ENERGY_POWERUP: + shipPower += 150; + if ( shipPower > MAX_POWER_LEVEL ) + shipPower = MAX_POWER_LEVEL; + break; + case ID_TELEPORT_POWERUP: + mTeleportCount++; + break; + case ID_BRAKE_POWERUP: + if ( mBrakeCount < MAX_BRAKES ) + mBrakeCount++; + break; + case ID_SHIELD_POWERUP: + if ( mShieldCount < MAX_SHIELDS ) + mShieldCount++; + break; + case ID_SHOOT_POWERUP: + if ( mShootCount < MAX_FIREPOWER ) + mShootCount++; + break; + } + + powerups.removeRef( pup ); + vitalsChanged = TRUE; + } + else if ( (*it) == shield ) + { + powerups.removeRef( pup ); + } + else if ( (*it)->rtti() == ID_MISSILE ) + { + if ( can_destroy_powerups ) + { + powerups.removeRef( pup ); + } + } + } + } + } // -- if( powerups.isEmpty() ) +} + +// - - - + +void KAsteroidsView::hideShield() +{ + shield->hide(); + mShieldCount = 0; + shieldOn = FALSE; +} + +double KAsteroidsView::randDouble() +{ + int v = rand(); + return (double)v / (double)RAND_MAX; +} + +int KAsteroidsView::randInt( int range ) +{ + return rand() % range; +} + +void KAsteroidsView::showEvent( QShowEvent *e ) +{ +#if defined( QT_LICENSE_PROFESSIONAL ) + static bool wasThere = FALSE; + + if ( !wasThere ) { + wasThere = TRUE; + QMessageBox::information( this, tr("QCanvas demo"), + tr("This game has been implemented using the QCanvas class.\n" + "The QCanvas class is not part of the Professional Edition. Please \n" + "contact Trolltech if you want to upgrade to the Enterprise Edition.") ); + } +#endif + + QWidget::showEvent( e ); +} |