bulletindicator.cpp
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#include "bulletindicator.h"
BulletIndicator::BulletIndicator(QWidget *parent) : QWidget(parent)
{
max = 1;
cur = 0;
bulletPixmap.load(":/images/symbol/step_bullet.png");
currentBulletPixmap.load(":/images/symbol/selected_step_bullet.png");
padding = qMin(bulletPixmap.width(), currentBulletPixmap.width());
QRect defaultGeometry;
defaultGeometry.setSize(bulletPixmap.size());
QLabel *bullet;
bullet = new QLabel(this);
bullet->setPixmap(currentBulletPixmap);
bullet->setGeometry(defaultGeometry);
bullets.append(bullet);
bullet = new QLabel(this);
bullet->setPixmap(bulletPixmap);
bullet->setGeometry(defaultGeometry);
bullets.append(bullet);
updatePosition();
}
void BulletIndicator::setBulletPixmap(QPixmap &pixmap)
{
bulletPixmap = pixmap;
for (int i = 0; i <= max; i++)
if (i != cur)
bullets.at(i)->setPixmap(pixmap);
padding = qMin(pixmap.width(), padding);
updatePosition();
}
void BulletIndicator::setCurrentBulletPixmap(QPixmap &pixmap)
{
currentBulletPixmap = pixmap;
bullets.at(cur)->setPixmap(pixmap);
padding = qMin(pixmap.width(), padding);
updatePosition();
}
void BulletIndicator::setCurrentIndex(int index)
{
if (index == cur || index < 0 || index > max)
return;
bullets.at(cur)->setPixmap(bulletPixmap);
bullets.at(index)->setPixmap(currentBulletPixmap);
cur = index;
updatePosition();
}
void BulletIndicator::setMaximum(int maximum)
{
if (maximum == max || maximum < 1)
return;
if (bullets.size() <= maximum)
{
QRect defaultGeometry;
defaultGeometry.setSize(bulletPixmap.size());
for (int i = bullets.size(); i <= maximum; i++)
{
QLabel *l = new QLabel(this);
l->setPixmap(bulletPixmap);
l->setGeometry(defaultGeometry);
bullets.append(l);
}
}
if (maximum > max)
{
for (int i = max + 1; i <= maximum; i++)
{
QLabel *l = bullets.at(i);
if (l->isHidden())
l->show();
}
}
else if (maximum < max)
{
for (int i = maximum + 1; i <= max; i++)
{
QLabel *l = bullets.at(i);
if (l->isVisible())
l->hide();
}
}
max = maximum;
if (maximum < cur)
setCurrentIndex(maximum);
else
updatePosition();
}
void BulletIndicator::resizeEvent(QResizeEvent *event)
{
QWidget::resizeEvent(event);
updatePosition();
}
void BulletIndicator::updatePosition()
{
int bulletWidth = bulletPixmap.width();
int bulletHeight = bulletPixmap.height();
int currentBulletWidth = currentBulletPixmap.width();
int currentBulletHeight = currentBulletPixmap.height();
int x = (width() - ((bulletWidth + padding) * max + currentBulletWidth)) / 2;
int bulletY = (height() - bulletHeight) / 2;
int currentBulletY = (height() - currentBulletHeight) / 2;
for (int i = 0; i <= max; i++)
{
if (i == cur)
{
bullets.at(i)->setGeometry(x, currentBulletY, currentBulletWidth, currentBulletHeight);
x += currentBulletWidth + padding;
}
else
{
bullets.at(i)->setGeometry(x, bulletY, bulletWidth, bulletHeight);
x += bulletWidth + padding;
}
}
}