diff options
Diffstat (limited to 'demos/embedded/raycasting/raycasting.cpp')
-rw-r--r-- | demos/embedded/raycasting/raycasting.cpp | 86 |
1 files changed, 82 insertions, 4 deletions
diff --git a/demos/embedded/raycasting/raycasting.cpp b/demos/embedded/raycasting/raycasting.cpp index 3836dc1..ba91281 100644 --- a/demos/embedded/raycasting/raycasting.cpp +++ b/demos/embedded/raycasting/raycasting.cpp @@ -71,7 +71,8 @@ public: , angle(0.5) , playerPos(1.5, 1.5) , angleDelta(0) - , moveDelta(0) { + , moveDelta(0) + , touchDevice(false) { // http://www.areyep.com/RIPandMCS-TextureLibrary.html textureImg.load(":/textures.png"); @@ -83,6 +84,7 @@ public: watch.start(); ticker.start(25, this); setAttribute(Qt::WA_OpaquePaintEvent, true); + setMouseTracking(false); } void updatePlayer() { @@ -114,10 +116,12 @@ public: void render() { // setup the screen surface - if (buffer.size() != size()) - buffer = QImage(size(), QImage::Format_ARGB32); + if (buffer.size() != bufferSize) + buffer = QImage(bufferSize, QImage::Format_ARGB32); int bufw = buffer.width(); int bufh = buffer.height(); + if (bufw <= 0 || bufh <= 0) + return; // we intentionally cheat here, to avoid detach const uchar *ptr = buffer.bits(); @@ -241,11 +245,36 @@ public: *pixel2 = qRgb(96, 96, 96); } - update(); + update(QRect(QPoint(0, 0), bufferSize)); } protected: + void resizeEvent(QResizeEvent*) { +#if defined(Q_OS_SYMBIAN) + // FIXME: use HAL + if (width() > 480 || height() > 480) + touchDevice = true; +#else + touchDevice = false; +#endif + if (touchDevice) { + if (width() < height()) { + trackPad = QRect(0, height() / 2, width(), height() / 2); + centerPad = QPoint(width() / 2, height() * 3 / 4); + bufferSize = QSize(width(), height() / 2); + } else { + trackPad = QRect(width() / 2, 0, width() / 2, height()); + centerPad = QPoint(width() * 3 / 4, height() / 2); + bufferSize = QSize(width() / 2, height()); + } + } else { + trackPad = QRect(); + bufferSize = size(); + } + update(); + } + void timerEvent(QTimerEvent*) { updatePlayer(); render(); @@ -255,7 +284,33 @@ protected: void paintEvent(QPaintEvent *event) { QPainter p(this); p.setCompositionMode(QPainter::CompositionMode_Source); + + if (touchDevice && event->rect().intersects(trackPad)) { + p.fillRect(trackPad, Qt::white); + p.setPen(QPen(QColor(224, 224, 224), 6)); + int rad = qMin(trackPad.width(), trackPad.height()) * 0.3; + p.drawEllipse(centerPad, rad, rad); + + p.setPen(Qt::NoPen); + p.setBrush(Qt::gray); + + QPolygon poly; + poly << QPoint(-30, 0); + poly << QPoint(0, -40); + poly << QPoint(30, 0); + + p.translate(centerPad); + for (int i = 0; i < 4; ++i) { + p.rotate(90); + p.translate(0, 20 - rad); + p.drawPolygon(poly); + p.translate(0, rad - 20); + } + p.resetTransform(); + } + p.drawImage(event->rect(), buffer, event->rect()); + p.end(); } void keyPressEvent(QKeyEvent *event) { @@ -282,6 +337,25 @@ protected: moveDelta = (moveDelta < 0) ? 0 : moveDelta; } + void mousePressEvent(QMouseEvent *event) { + qreal dx = centerPad.x() - event->pos().x(); + qreal dy = centerPad.y() - event->pos().y(); + angleDelta = dx * 2 * M_PI / width(); + moveDelta = dy * 10 / height(); + } + + void mouseMoveEvent(QMouseEvent *event) { + qreal dx = centerPad.x() - event->pos().x(); + qreal dy = centerPad.y() - event->pos().y(); + angleDelta = dx * 2 * M_PI / width(); + moveDelta = dy * 10 / height(); + } + + void mouseReleaseEvent(QMouseEvent*) { + angleDelta = 0; + moveDelta = 0; + } + private: QTime watch; QBasicTimer ticker; @@ -292,6 +366,10 @@ private: qreal moveDelta; QImage textureImg; int textureCount; + bool touchDevice; + QRect trackPad; + QPoint centerPad; + QSize bufferSize; }; int main(int argc, char **argv) |