--- a/QTfrontend/bgwidget.cpp Sat Mar 06 10:54:24 2010 +0000
+++ b/QTfrontend/bgwidget.cpp Sat Mar 06 10:59:20 2010 +0000
@@ -20,9 +20,9 @@
SpritePosition::SpritePosition(QWidget * parent, int sh)
{
- wParent = parent;
- iSpriteHeight = sh;
- reset();
+ wParent = parent;
+ iSpriteHeight = sh;
+ reset();
}
SpritePosition::~SpritePosition()
@@ -31,110 +31,110 @@
void SpritePosition::move()
{
- fX += fXMov;
- fY += fYMov;
- iAngle += 4;
- if (iAngle >= 360) iAngle = 0;
- if (fY > wParent->height()) reset();
+ fX += fXMov;
+ fY += fYMov;
+ iAngle += 4;
+ if (iAngle >= 360) iAngle = 0;
+ if (fY > wParent->height()) reset();
}
void SpritePosition::reset()
{
- fY = -1 * iSpriteHeight;
- fX = (qrand() % ((int)(wParent->width() * 1.5))) - wParent->width()/2;
- fYMov = ((qrand() % 400)+300) / 100.0f;
- fXMov = fYMov * 0.5f;
- iAngle = qrand() % 360;
+ fY = -1 * iSpriteHeight;
+ fX = (qrand() % ((int)(wParent->width() * 1.5))) - wParent->width()/2;
+ fYMov = ((qrand() % 400)+300) / 100.0f;
+ fXMov = fYMov * 0.5f;
+ iAngle = qrand() % 360;
}
QPoint SpritePosition::pos()
{
- return QPoint((int)fX,(int)fY);
+ return QPoint((int)fX,(int)fY);
}
int SpritePosition::getAngle()
{
- return iAngle;
+ return iAngle;
}
void SpritePosition::init()
{
- fY = qrand() % (wParent->height() + 1);
- fX = qrand() % (wParent->width() + 1);
+ fY = qrand() % (wParent->height() + 1);
+ fX = qrand() % (wParent->width() + 1);
}
BGWidget::BGWidget(QWidget * parent) : QWidget(parent)
{
setAttribute(Qt::WA_NoSystemBackground, true);
- sprite.load(":/res/Star.png");
+ sprite.load(":/res/Star.png");
- setAutoFillBackground(false);
+ setAutoFillBackground(false);
- for (int i = 0; i < SPRITE_MAX; i++) spritePositions[i] = new SpritePosition(this, sprite.height());
+ for (int i = 0; i < SPRITE_MAX; i++) spritePositions[i] = new SpritePosition(this, sprite.height());
- for (int i = 0; i < 360; i++)
- {
- rotatedSprites[i] = new QImage(sprite.width(), sprite.height(), QImage::Format_ARGB32);
- rotatedSprites[i]->fill(0);
+ for (int i = 0; i < 360; i++)
+ {
+ rotatedSprites[i] = new QImage(sprite.width(), sprite.height(), QImage::Format_ARGB32);
+ rotatedSprites[i]->fill(0);
- QPoint translate(sprite.width()/2, sprite.height()/2);
+ QPoint translate(sprite.width()/2, sprite.height()/2);
- QPainter p;
- p.begin(rotatedSprites[i]);
- // p.setRenderHint(QPainter::Antialiasing);
- p.setRenderHint(QPainter::SmoothPixmapTransform);
- p.translate(translate.x(), translate.y());
- p.rotate(i);
- p.translate(-1*translate.x(), -1*translate.y());
- p.drawImage(0, 0, sprite);
- }
+ QPainter p;
+ p.begin(rotatedSprites[i]);
+ // p.setRenderHint(QPainter::Antialiasing);
+ p.setRenderHint(QPainter::SmoothPixmapTransform);
+ p.translate(translate.x(), translate.y());
+ p.rotate(i);
+ p.translate(-1*translate.x(), -1*translate.y());
+ p.drawImage(0, 0, sprite);
+ }
- timerAnimation = new QTimer();
- connect(timerAnimation, SIGNAL(timeout()), this, SLOT(animate()));
- timerAnimation->setInterval(ANIMATION_INTERVAL);
+ timerAnimation = new QTimer();
+ connect(timerAnimation, SIGNAL(timeout()), this, SLOT(animate()));
+ timerAnimation->setInterval(ANIMATION_INTERVAL);
}
BGWidget::~BGWidget()
{
- for (int i = 0; i < SPRITE_MAX; i++) delete spritePositions[i];
- for (int i = 0; i < 360; i++) delete rotatedSprites[i];
- delete timerAnimation;
+ for (int i = 0; i < SPRITE_MAX; i++) delete spritePositions[i];
+ for (int i = 0; i < 360; i++) delete rotatedSprites[i];
+ delete timerAnimation;
}
void BGWidget::paintEvent(QPaintEvent *event)
{
- QPainter p;
- p.begin(this);
- //p.setRenderHint(QPainter::Antialiasing);
- for (int i = 0; i < SPRITE_MAX; i++)
- {
- QPoint point = spritePositions[i]->pos();
- p.drawImage(point.x(), point.y(), *rotatedSprites[spritePositions[i]->getAngle()]);
- }
- p.end();
+ QPainter p;
+ p.begin(this);
+ //p.setRenderHint(QPainter::Antialiasing);
+ for (int i = 0; i < SPRITE_MAX; i++)
+ {
+ QPoint point = spritePositions[i]->pos();
+ p.drawImage(point.x(), point.y(), *rotatedSprites[spritePositions[i]->getAngle()]);
+ }
+ p.end();
}
void BGWidget::animate()
{
- for (int i = 0; i < SPRITE_MAX; i++)
- {
+ for (int i = 0; i < SPRITE_MAX; i++)
+ {
// bottom edge of star *seems* clipped, but in fact, if I switch to just plain old repaint()/update() it is still clipped - artifact of transform? As for 5, is arbitrary number. 4 was noticeably clipping, 5 seemed same as update() - I assume extra room is due to rotation and value really should be calculated proportional to width/height
update(spritePositions[i]->pos().x(),spritePositions[i]->pos().y(), sprite.width()+5, sprite.height()+5);
- spritePositions[i]->move();
- }
+ spritePositions[i]->move();
+ }
}
void BGWidget::startAnimation()
{
- timerAnimation->start();
+ timerAnimation->start();
}
void BGWidget::stopAnimation()
{
- timerAnimation->stop();
+ timerAnimation->stop();
}
void BGWidget::init()
{
- for (int i = 0; i < SPRITE_MAX; i++) spritePositions[i]->init();
+ for (int i = 0; i < SPRITE_MAX; i++) spritePositions[i]->init();
}