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authorGeir Vattekar <geir.vattekar@trolltech.com>2009-06-29 12:40:17 (GMT)
committerGeir Vattekar <geir.vattekar@trolltech.com>2009-06-29 13:00:59 (GMT)
commit98c8e465a62b47051d35f998a3cdea54dfede3ad (patch)
tree76cfddaad1803900e5e00cabac73f3d74acef9aa /examples
parent9dd82fcebc50ca802e9e24a50283152e1dc35508 (diff)
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Doc: Documented the Move Blocks example.
Reviewed-by: Andreas Aardal Hanssen
Diffstat (limited to 'examples')
-rw-r--r--examples/animation/moveblocks/main.cpp36
1 files changed, 32 insertions, 4 deletions
diff --git a/examples/animation/moveblocks/main.cpp b/examples/animation/moveblocks/main.cpp
index 4843a89..c43e841 100644
--- a/examples/animation/moveblocks/main.cpp
+++ b/examples/animation/moveblocks/main.cpp
@@ -42,6 +42,7 @@
#include <QtCore>
#include <QtGui>
+//![15]
class StateSwitchEvent: public QEvent
{
public:
@@ -63,8 +64,9 @@ public:
private:
int m_rand;
};
+//![15]
-
+//![16]
class QGraphicsRectWidget : public QGraphicsWidget
{
public:
@@ -74,6 +76,7 @@ public:
painter->fillRect(rect(), Qt::blue);
}
};
+//![16]
class StateSwitchTransition: public QAbstractTransition
{
@@ -85,11 +88,13 @@ public:
}
protected:
+//![14]
virtual bool eventTest(QEvent *event)
{
return (event->type() == QEvent::Type(StateSwitchEvent::StateSwitchType))
&& (static_cast<StateSwitchEvent *>(event)->rand() == m_rand);
}
+//![14]
virtual void onTransition(QEvent *) {}
@@ -97,6 +102,7 @@ private:
int m_rand;
};
+//![10]
class StateSwitcher : public QState
{
Q_OBJECT
@@ -105,7 +111,9 @@ public:
: QState(machine->rootState()), m_machine(machine),
m_stateCount(0), m_lastIndex(0)
{ }
+//![10]
+//![11]
virtual void onEntry(QEvent *)
{
int n;
@@ -115,14 +123,16 @@ public:
m_machine->postEvent(new StateSwitchEvent(n));
}
virtual void onExit(QEvent *) {}
+//![11]
+//![12]
void addState(QState *state, QAbstractAnimation *animation) {
StateSwitchTransition *trans = new StateSwitchTransition(++m_stateCount);
trans->setTargetState(state);
addTransition(trans);
trans->addAnimation(animation);
}
-
+//![12]
private:
QStateMachine *m_machine;
@@ -130,6 +140,7 @@ private:
int m_lastIndex;
};
+//![13]
QState *createGeometryState(QObject *w1, const QRect &rect1,
QObject *w2, const QRect &rect2,
QObject *w3, const QRect &rect3,
@@ -145,6 +156,7 @@ QState *createGeometryState(QObject *w1, const QRect &rect1,
return result;
}
+//![13]
int main(int argc, char **argv)
{
@@ -165,6 +177,7 @@ int main(int argc, char **argv)
button3->setObjectName("button3");
button4->setObjectName("button4");
#else
+//![1]
QGraphicsRectWidget *button1 = new QGraphicsRectWidget;
QGraphicsRectWidget *button2 = new QGraphicsRectWidget;
QGraphicsRectWidget *button3 = new QGraphicsRectWidget;
@@ -178,13 +191,14 @@ int main(int argc, char **argv)
scene.addItem(button2);
scene.addItem(button3);
scene.addItem(button4);
-
+//![1]
QGraphicsView window(&scene);
window.setFrameStyle(0);
window.setAlignment(Qt::AlignLeft | Qt::AlignTop);
window.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
window.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
#endif
+//![2]
QStateMachine machine;
QState *group = new QState();
@@ -193,7 +207,9 @@ int main(int argc, char **argv)
timer.setInterval(1250);
timer.setSingleShot(true);
QObject::connect(group, SIGNAL(entered()), &timer, SLOT(start()));
+//![2]
+//![3]
QState *state1;
QState *state2;
QState *state3;
@@ -207,6 +223,7 @@ int main(int argc, char **argv)
button3, QRect(200, 0, 50, 50),
button4, QRect(250, 0, 50, 50),
group);
+//![3]
state2 = createGeometryState(button1, QRect(250, 100, 50, 50),
button2, QRect(250, 150, 50, 50),
button3, QRect(250, 200, 50, 50),
@@ -232,13 +249,16 @@ int main(int argc, char **argv)
button3, QRect(50, 200, 50, 50),
button4, QRect(200, 200, 50, 50),
group);
+//![4]
state7 = createGeometryState(button1, QRect(0, 0, 50, 50),
button2, QRect(250, 0, 50, 50),
button3, QRect(0, 250, 50, 50),
button4, QRect(250, 250, 50, 50),
group);
group->setInitialState(state1);
+//![4]
+//![5]
QParallelAnimationGroup animationGroup;
QSequentialAnimationGroup *subGroup;
@@ -246,13 +266,16 @@ int main(int argc, char **argv)
anim->setDuration(1000);
anim->setEasingCurve(QEasingCurve::OutElastic);
animationGroup.addAnimation(anim);
+//![5]
+//![6]
subGroup = new QSequentialAnimationGroup(&animationGroup);
subGroup->addPause(100);
anim = new QPropertyAnimation(button3, "geometry");
anim->setDuration(1000);
anim->setEasingCurve(QEasingCurve::OutElastic);
subGroup->addAnimation(anim);
+//![6]
subGroup = new QSequentialAnimationGroup(&animationGroup);
subGroup->addPause(150);
@@ -268,21 +291,26 @@ int main(int argc, char **argv)
anim->setEasingCurve(QEasingCurve::OutElastic);
subGroup->addAnimation(anim);
+//![7]
StateSwitcher *stateSwitcher = new StateSwitcher(&machine);
stateSwitcher->setObjectName("stateSwitcher");
group->addTransition(&timer, SIGNAL(timeout()), stateSwitcher);
stateSwitcher->addState(state1, &animationGroup);
stateSwitcher->addState(state2, &animationGroup);
+//![7]
stateSwitcher->addState(state3, &animationGroup);
stateSwitcher->addState(state4, &animationGroup);
stateSwitcher->addState(state5, &animationGroup);
stateSwitcher->addState(state6, &animationGroup);
+//![8]
stateSwitcher->addState(state7, &animationGroup);
+//![8]
+//![9]
machine.addState(group);
machine.setInitialState(group);
machine.start();
-
+//![9]
window.resize(300, 300);
window.show();