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-rw-r--r--apt-pkg/contrib/progress.h87
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diff --git a/apt-pkg/contrib/progress.h b/apt-pkg/contrib/progress.h
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+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+/* ######################################################################
+
+ OpProgress - Operation Progress
+
+ This class allows lengthy operations to communicate their progress
+ to the GUI. The progress model is simple and is not designed to handle
+ the complex case of the multi-activity acquire class.
+
+ The model is based on the concept of an overall operation consisting
+ of a series of small sub operations. Each sub operation has it's own
+ completion status and the overall operation has it's completion status.
+ The units of the two are not mixed and are completely independent.
+
+ The UI is expected to subclass this to provide the visuals to the user.
+
+ ##################################################################### */
+ /*}}}*/
+#ifndef PKGLIB_PROGRESS_H
+#define PKGLIB_PROGRESS_H
+
+#include <apt-pkg/macros.h>
+#include <string>
+#include <sys/time.h>
+
+
+class Configuration;
+class APT_PUBLIC OpProgress
+{
+ friend class OpTextProgress;
+ unsigned long long Current;
+ unsigned long long Total;
+ unsigned long long Size;
+ unsigned long long SubTotal;
+ float LastPercent;
+
+ // Change reduction code
+ struct timeval LastTime;
+ std::string LastOp;
+ std::string LastSubOp;
+
+ protected:
+
+ std::string Op;
+ std::string SubOp;
+ float Percent;
+
+ bool MajorChange;
+
+ bool CheckChange(float Interval = 0.7);
+ virtual void Update() {};
+
+ public:
+
+ void Progress(unsigned long long Current);
+ void SubProgress(unsigned long long SubTotal, const std::string &Op = "", float const Percent = -1);
+ void OverallProgress(unsigned long long Current,unsigned long long Total,
+ unsigned long long Size,const std::string &Op);
+ virtual void Done() {};
+
+ OpProgress();
+ virtual ~OpProgress() {};
+};
+
+class APT_PUBLIC OpTextProgress : public OpProgress
+{
+ protected:
+
+ std::string OldOp;
+ bool NoUpdate;
+ bool NoDisplay;
+ unsigned long LastLen;
+ virtual void Update() APT_OVERRIDE;
+ void Write(const char *S);
+
+ public:
+
+ virtual void Done() APT_OVERRIDE;
+
+ explicit OpTextProgress(bool NoUpdate = false) : NoUpdate(NoUpdate),
+ NoDisplay(false), LastLen(0) {};
+ explicit OpTextProgress(Configuration &Config);
+ virtual ~OpTextProgress() {Done();};
+};
+
+#endif