?? transactionthread.h
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#ifndef TRANSACTIONTHREAD_H#define TRANSACTIONTHREAD_H#include <qimage.h>#include <qmutex.h>#include <qthread.h>#include <list>class Transaction{public: virtual QImage apply(const QImage &image) = 0; virtual QString messageStr() = 0;};class FlipTransaction : public Transaction{public: FlipTransaction(Qt::Orientation orient); QImage apply(const QImage &image); QString messageStr();private: Qt::Orientation orientation;};class ResizeTransaction : public Transaction{public: ResizeTransaction(const QSize &newSize); QImage apply(const QImage &image); QString messageStr();private: QSize size;};class ConvertDepthTransaction : public Transaction{public: ConvertDepthTransaction(int newDepth); QImage apply(const QImage &image); QString messageStr();private: int depth;};enum { TransactionStart = 1001, AllTransactionsDone = 1002 };class TransactionStartEvent : public QCustomEvent{public: TransactionStartEvent(); QString message;};class TransactionThread : public QThread{public: void run(); void setTargetWidget(QWidget *widget); void addTransaction(Transaction *transact); void setImage(const QImage &image); QImage image();private: QWidget *targetWidget; QMutex mutex; QImage currentImage; std::list<Transaction *> transactions;};#endif?? 快捷鍵說明
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