haiku.git

/*******************************************************************************
/
/	File:			ColumnTypes.h
/
/   Description:    Experimental classes that implement particular column/field
/					data types for use in BColumnListView.
/
/	Copyright 2000+, Be Incorporated, All Rights Reserved
/
*******************************************************************************/


#ifndef _COLUMN_TYPES_H
#define _COLUMN_TYPES_H


#include "ColumnListView.h"

#include <String.h>
#include <Font.h>
#include <Bitmap.h>


//=====================================================================
// Common base-class: a column that draws a standard title at its top.

class BTitledColumn : public BColumn
{
public:
						BTitledColumn(const char* title, float width, float minWidth,
							float maxWidth, alignment align = B_ALIGN_LEFT);
	virtual void		DrawTitle(BRect rect, BView* parent);
	virtual void		GetColumnName(BString* into) const;

			void		DrawString(const char*, BView*, BRect);
			void		SetTitle(const char* title);
			void		Title(BString* forTitle) const;
							// sets the BString arg to be the title
			float		FontHeight() const;

	virtual float		GetPreferredWidth(BField* field, BView* parent) const;

private:
			float		fFontHeight;
			BString		fTitle;
};


//=====================================================================
// Field and column classes for strings.

class BStringField : public BField
{
public:
								BStringField(const char* string);

			void				SetString(const char* string);
			const char*			String() const;
			void				SetClippedString(const char* string);
			bool				HasClippedString() const;
			const char*			ClippedString();
			void				SetWidth(float);
			float				Width();

private:
			float				fWidth;
			BString				fString;
			BString				fClippedString;
};


//--------------------------------------------------------------------

class BStringColumn : public BTitledColumn
{
public:
								BStringColumn(const char* title, float width,
									float minWidth, float maxWidth, uint32 truncate,
									alignment align = B_ALIGN_LEFT);
	virtual	void				DrawField(BField* field, BRect rect, BView* parent);
	virtual	int					CompareFields(BField* field1, BField* field2);
	virtual	float				GetPreferredWidth(BField* field, BView* parent) const;
	virtual	bool				AcceptsField(const BField* field) const;

private:
			uint32				fTruncate;
};


//=====================================================================
// Field and column classes for dates.

class BDateField : public BField
{
public:
								BDateField(time_t* t);
			void				SetWidth(float);
			float				Width();
			void				SetClippedString(const char*);
			const char*			ClippedString();
			time_t				Seconds();
			time_t				UnixTime();

private:
	struct	tm					fTime;
			time_t				fUnixTime;
			time_t				fSeconds;
			BString				fClippedString;
			float				fWidth;
};


//--------------------------------------------------------------------

class BDateColumn : public BTitledColumn
{
public:
								BDateColumn(const char* title, float width,
									float minWidth, float maxWidth,
									alignment align = B_ALIGN_LEFT);
	virtual	void				DrawField(BField* field, BRect rect, BView* parent);
	virtual	int					CompareFields(BField* field1, BField* field2);

private:
			BString				fTitle;
};


//=====================================================================
// Field and column classes for numeric sizes.

class BSizeField : public BField
{
public:
								BSizeField(off_t size);
			void				SetSize(off_t);
			off_t				Size();

private:
			off_t				fSize;
};


//--------------------------------------------------------------------

class BSizeColumn : public BTitledColumn
{
public:
								BSizeColumn(const char* title, float width,
									float minWidth, float maxWidth,
									alignment align = B_ALIGN_LEFT);
	virtual	void				DrawField(BField* field, BRect rect, BView* parent);
	virtual	int					CompareFields(BField* field1, BField* field2);
};


//=====================================================================
// Field and column classes for integers.

class BIntegerField : public BField
{
public:
								BIntegerField(int32 number);
			void				SetValue(int32);
			int32				Value();

private:
			int32				fInteger;
};


//--------------------------------------------------------------------

class BIntegerColumn : public BTitledColumn
{
public:
								BIntegerColumn(const char* title, float width,
									float minWidth, float maxWidth,
									alignment align = B_ALIGN_LEFT);
	virtual	void				DrawField(BField* field, BRect rect, BView* parent);
	virtual	int					CompareFields(BField* field1, BField* field2);
};


//=====================================================================
// Field and column classes for bitmaps

class BBitmapField : public BField
{
public:
								BBitmapField(BBitmap* bitmap);
	const	BBitmap*			Bitmap();
			void				SetBitmap(BBitmap* bitmap);

private:
			BBitmap*			fBitmap;
};


//--------------------------------------------------------------------

class BBitmapColumn : public BTitledColumn
{
public:
								BBitmapColumn(const char* title, float width,
									float minWidth, float maxWidth,
									alignment align = B_ALIGN_LEFT);
	virtual	void				DrawField(BField* field, BRect rect, BView* parent);
	virtual	int					CompareFields(BField* field1, BField* field2);
	virtual	bool				AcceptsField(const BField* field) const;
};


//=====================================================================
// Column to display BIntegerField objects as a graph.

class GraphColumn : public BIntegerColumn
{
public:
								GraphColumn(const char* name, float width,
									float minWidth, float maxWidth,
									alignment align = B_ALIGN_LEFT);
	virtual	void				DrawField(BField* field, BRect rect, BView* parent);
};


#endif	// _COLUMN_TYPES_H