116 lines
2.5 KiB
C++
116 lines
2.5 KiB
C++
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/*
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* Copyright 2008, Axel Dörfler, [email protected]. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef DATA_SOURCE_H
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#define DATA_SOURCE_H
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#include <InterfaceDefs.h>
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class BString;
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class SystemInfo;
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class DataSource {
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public:
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DataSource(int64 initialMin, int64 initialMax);
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DataSource();
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DataSource(const DataSource& other);
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virtual ~DataSource();
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virtual DataSource* Copy() const;
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int64 Minimum() const;
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int64 Maximum() const;
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bigtime_t RefreshInterval() const;
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virtual void SetLimits(int64 min, int64 max);
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virtual void SetRefreshInterval(bigtime_t interval);
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virtual void SetColor(rgb_color color);
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virtual int64 NextValue(SystemInfo& info);
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virtual void Print(BString& text, int64 value) const;
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virtual const char* Label() const;
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virtual const char* Unit() const;
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virtual rgb_color Color() const;
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virtual bool AdaptiveScale() const;
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static int32 CountSources();
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static const DataSource* SourceAt(int32 index);
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protected:
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int64 fMinimum;
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int64 fMaximum;
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bigtime_t fInterval;
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rgb_color fColor;
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};
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class MemoryDataSource : public DataSource {
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public:
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MemoryDataSource();
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virtual ~MemoryDataSource();
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virtual void Print(BString& text, int64 value) const;
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virtual const char* Unit() const;
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};
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class UsedMemoryDataSource : public MemoryDataSource {
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public:
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UsedMemoryDataSource();
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virtual ~UsedMemoryDataSource();
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virtual DataSource* Copy() const;
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virtual int64 NextValue(SystemInfo& info);
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virtual const char* Label() const;
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};
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class CachedMemoryDataSource : public MemoryDataSource {
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public:
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CachedMemoryDataSource();
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virtual ~CachedMemoryDataSource();
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virtual DataSource* Copy() const;
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virtual int64 NextValue(SystemInfo& info);
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virtual const char* Label() const;
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};
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class ThreadsDataSource : public DataSource {
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public:
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ThreadsDataSource();
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virtual ~ThreadsDataSource();
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virtual DataSource* Copy() const;
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virtual int64 NextValue(SystemInfo& info);
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virtual const char* Label() const;
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virtual bool AdaptiveScale() const;
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};
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class CpuUsageDataSource : public DataSource {
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public:
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CpuUsageDataSource();
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CpuUsageDataSource(const CpuUsageDataSource& other);
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virtual ~CpuUsageDataSource();
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virtual DataSource* Copy() const;
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virtual void Print(BString& text, int64 value) const;
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virtual int64 NextValue(SystemInfo& info);
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virtual const char* Label() const;
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private:
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bigtime_t fPreviousActive;
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bigtime_t fPreviousTime;
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};
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#endif // DATA_SOURCE_H
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