浣跨敤Qt妗嗘灦涓殑QGraphicsScene锛屾偍闇€瑕佹寜鐓т互涓嬫楠よ繘琛屾搷浣滐細

1. 鍒涘缓涓€涓猀GraphicsScene瀵硅薄锛?/li>

QGraphicsScene scene;

2. 灏嗗満鏅笌QGraphicsView锛堟垨鍏朵粬QGraphicsScene鐨勮鍥剧被锛夊叧鑱旇捣鏉ワ紝浠ヤ究鑳藉鏄剧ず鍦烘櫙涓殑鍥惧舰椤癸細

QGraphicsView view(&scene);

3. 鍒涘缓鍥惧舰椤癸紙QGraphicsItem锛夊苟灏嗗叾娣诲姞鍒板満鏅腑锛?/li>

QGraphicsItem *item = new QGraphicsRectItem(0, 0, 100, 100);  // 鍒涘缓涓€涓煩褰㈠浘褰㈤」
scene.addItem(item);  // 灏嗗浘褰㈤」娣诲姞鍒板満鏅腑

4. 鍙互閫氳繃璁剧疆鍦烘櫙鐨勫睘鎬ф潵鏇存敼鍦烘櫙鐨勮涓哄拰澶栬锛屼緥濡傝缃満鏅殑鑳屾櫙棰滆壊锛?/li>

scene.setBackgroundBrush(Qt::gray);

5. 濡傛灉闇€瑕佸鐞嗗満鏅腑鐨勪簨浠讹紝渚嬪榧犳爣鐐瑰嚮銆佺Щ鍔ㄧ瓑锛屽彲浠ラ€氳繃閲嶅啓鍦烘櫙鐨勭浉鍏充簨浠跺鐞嗗嚱鏁版潵瀹炵幇锛?/li>

void MyScene::mousePressEvent(QGraphicsSceneMouseEvent *event) {
// 澶勭悊榧犳爣鐐瑰嚮浜嬩欢
}

6. 鏈€鍚庯紝灏嗗満鏅樉绀哄湪搴旂敤绋嬪簭鐨勪富绐楀彛涓細

QMainWindow window;
window.setCentralWidget(&view);
window.show();

浠ヤ笂鏄娇鐢≦GraphicsScene鐨勫熀鏈楠わ紝鎮ㄥ彲浠ユ牴鎹疄闄呴渶姹傝繘琛屾洿澶氱殑鎿嶄綔鍜屽畾鍒躲€?/p>