WidgetAttributeText.cpp

/*
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*/


#include "WidgetAttributeText.h"

#include <ctype.h>
#include <stdlib.h>
#include <string.h>

#include <fs_attr.h>
#include <parsedate.h>

#include <Alert.h>
#include <AppFileInfo.h>
#include <Catalog.h>
#include <Debug.h>
#include <Locale.h>
#include <NodeInfo.h>
#include <Path.h>
#include <TextView.h>
#include <Volume.h>
#include <VolumeRoster.h>

#include "Attributes.h"
#include "FindPanel.h"
#include "FSUndoRedo.h"
#include "FSUtils.h"
#include "Model.h"
#include "OpenWithWindow.h"
#include "MimeTypes.h"
#include "PoseView.h"
#include "SettingsViews.h"
#include "Utilities.h"
#include "ViewState.h"


#undef B_TRANSLATION_CONTEXT
#define B_TRANSLATION_CONTEXT "WidgetAttributeText"


const int32 kGenericReadBufferSize = 1024;

const char* kSizeFormats[] = {
	"%.2f %s",
	"%.1f %s",
	"%.f %s",
	"%.f%s",
	0
};


bool NameAttributeText::sSortFolderNamesFirst = false;
bool RealNameAttributeText::sSortFolderNamesFirst = false;


template <class View>
float
TruncFileSizeBase(BString* result, int64 value, const View* view, float width)
{
	// ToDo:
	// if slow, replace float divisions with shifts
	// if fast enough, try fitting more decimal places

	// TODO: reuse libshared's string_for_size

	// format file size value
	char buffer[1024];
	if (value == kUnknownSize) {
		*result = "-";
		return view->StringWidth("-");
	} else if (value < kKBSize) {
		sprintf(buffer, B_TRANSLATE("%Ld bytes"), value);
		if (view->StringWidth(buffer) > width)
			sprintf(buffer, B_TRANSLATE("%Ld B"), value);
	} else {
		const char* suffix;
		float floatValue;
		if (value >= kTBSize) {
			suffix = B_TRANSLATE("TiB");
			floatValue = (float)value / kTBSize;
		} else if (value >= kGBSize) {
			suffix = B_TRANSLATE("GiB");
			floatValue = (float)value / kGBSize;
		} else if (value >= kMBSize) {
			suffix = B_TRANSLATE("MiB");
			floatValue = (float)value / kMBSize;
		} else {
			ASSERT(value >= kKBSize);
			suffix = B_TRANSLATE("KiB");
			floatValue = (float)value / kKBSize;
		}

		for (int32 index = 0; ; index++) {
			if (!kSizeFormats[index])
				break;

			sprintf(buffer, kSizeFormats[index], floatValue, suffix);

			// strip off an insignificant zero so we don't get readings
			// such as 1.00
			char* period = 0;
			for (char* tmp = buffer; *tmp; tmp++) {
				if (*tmp == '.')
					period = tmp;
			}
			if (period && period[1] && period[2] == '0')
				// move the rest of the string over the insignificant zero
				for (char* tmp = &period[2]; *tmp; tmp++)
					*tmp = tmp[1];

			float resultWidth = view->StringWidth(buffer);
			if (resultWidth <= width) {
				*result = buffer;
				return resultWidth;
			}
		}
	}

	return TruncStringBase(result, buffer, (ssize_t)strlen(buffer), view,
		width, (uint32)B_TRUNCATE_END);
}


template <class View>
float
TruncStringBase(BString* result, const char* str, int32 length,
	const View* view, float width, uint32 truncMode = B_TRUNCATE_MIDDLE)
{
	// we are using a template version of this call to make sure
	// the right StringWidth gets picked up for BView x BPoseView
	// for max speed and flexibility

	// a standard ellipsis inserting fitting algorithm
	if (view->StringWidth(str, length) <= width)
		*result = str;
	else {
		const char* srcstr[1];
		char* results[1];

		srcstr[0] = str;
		results[0] = result->LockBuffer(length + 3);

		BFont font;
		view->GetFont(&font);

	    font.GetTruncatedStrings(srcstr, 1, truncMode, width, results);
		result->UnlockBuffer();
	}
	return view->StringWidth(result->String(), result->Length());
}


template <class View>
float
TruncTimeBase(BString* result, int64 value, const View* view, float width)
{
	float resultWidth = width + 1;

	time_t timeValue = (time_t)value;

	struct {
		BDateFormatStyle dateStyle;
		BTimeFormatStyle timeStyle;
	} formats[5] = {
		{ B_FULL_DATE_FORMAT, B_MEDIUM_TIME_FORMAT },
		{ B_LONG_DATE_FORMAT, B_MEDIUM_TIME_FORMAT },
		{ B_LONG_DATE_FORMAT, B_SHORT_TIME_FORMAT },
		{ B_MEDIUM_DATE_FORMAT, B_SHORT_TIME_FORMAT },
		{ B_SHORT_DATE_FORMAT, B_SHORT_TIME_FORMAT },
	};

	BString date;
	for (int i = 0; resultWidth > width && i < 5; ++i) {
		if (BLocale::Default()->FormatDateTime(&date, timeValue,
				formats[i].dateStyle, formats[i].timeStyle) == B_OK) {
			resultWidth = view->StringWidth(date.String(), date.Length());
		}
	}

	if (resultWidth > width
		&& BLocale::Default()->FormatDate(&date, timeValue,
			B_SHORT_DATE_FORMAT) == B_OK) {
		resultWidth = view->StringWidth(date.String(), date.Length());
	}

	if (resultWidth > width) {
		// even the shortest format string didn't do it, insert ellipsis
		resultWidth = TruncStringBase(result, date.String(),
			(ssize_t)date.Length(), view, width);
	} else
		*result = date;

	return resultWidth;
}


// #pragma mark - WidgetAttributeText base class


WidgetAttributeText*
WidgetAttributeText::NewWidgetText(const Model* model,
	const BColumn* column, const BPoseView* view)
{
	// call this to make the right WidgetAttributeText type for a
	// given column

	const char* attrName = column->AttrName();

	if (strcmp(attrName, kAttrPath) == 0)
		return new PathAttributeText(model, column);

	if (strcmp(attrName, kAttrMIMEType) == 0)
		return new KindAttributeText(model, column);

	if (strcmp(attrName, kAttrStatName) == 0)
		return new NameAttributeText(model, column);

	if (strcmp(attrName, kAttrRealName) == 0)
		return new RealNameAttributeText(model, column);

	if (strcmp(attrName, kAttrStatSize) == 0)
		return new SizeAttributeText(model, column);

	if (strcmp(attrName, kAttrStatModified) == 0)
		return new ModificationTimeAttributeText(model, column);

	if (strcmp(attrName, kAttrStatCreated) == 0)
		return new CreationTimeAttributeText(model, column);

#ifdef OWNER_GROUP_ATTRIBUTES
	if (strcmp(attrName, kAttrStatOwner) == 0)
		return new OwnerAttributeText(model, column);

	if (strcmp(attrName, kAttrStatGroup) == 0)
		return new GroupAttributeText(model, column);
#endif
	if (strcmp(attrName, kAttrStatMode) == 0)
		return new ModeAttributeText(model, column);

	if (strcmp(attrName, kAttrOpenWithRelation) == 0)
		return new OpenWithRelationAttributeText(model, column, view);

	if (strcmp(attrName, kAttrAppVersion) == 0)
		return new AppShortVersionAttributeText(model, column);

	if (strcmp(attrName, kAttrSystemVersion) == 0)
		return new SystemShortVersionAttributeText(model, column);

	if (strcmp(attrName, kAttrOriginalPath) == 0)
		return new OriginalPathAttributeText(model, column);

	if (column->DisplayAs() != NULL) {
		if (!strncmp(column->DisplayAs(), "checkbox", 8))
			return new CheckboxAttributeText(model, column);

		if (!strncmp(column->DisplayAs(), "duration", 8))
			return new DurationAttributeText(model, column);

		if (!strncmp(column->DisplayAs(), "rating", 6))
			return new RatingAttributeText(model, column);
	}

	return new GenericAttributeText(model, column);
}


WidgetAttributeText::WidgetAttributeText(const Model* model,
	const BColumn* column)
	:
	fModel(const_cast<Model*>(model)),
	fColumn(column),
	fDirty(true),
	fValueIsDefined(false)
{
	ASSERT(fColumn);
	ASSERT(fColumn->Width() > 0);
}


WidgetAttributeText::~WidgetAttributeText()
{
}


const char*
WidgetAttributeText::FittingText(const BPoseView* view)
{
	if (fDirty || fColumn->Width() != fOldWidth || CheckSettingsChanged()
		|| !fValueIsDefined) {
		CheckViewChanged(view);
	}

	ASSERT(!fDirty);
	return fText.String();
}


bool
WidgetAttributeText::CheckViewChanged(const BPoseView* view)
{
	BString newText;
	FitValue(&newText, view);
	if (newText == fText)
		return false;

	fText = newText;
	return true;
}


bool
WidgetAttributeText::CheckSettingsChanged()
{
	return false;
}


float
WidgetAttributeText::TruncString(BString* result, const char* str,
	int32 length, const BPoseView* view, float width, uint32 truncMode)
{
	return TruncStringBase(result, str, length, view, width, truncMode);
}


float
WidgetAttributeText::TruncFileSize(BString* result, int64 value,
	const BPoseView* view, float width)
{
	return TruncFileSizeBase(result, value, view, width);
}


float
WidgetAttributeText::TruncTime(BString* result, int64 value,
	const BPoseView* view, float width)
{
	return TruncTimeBase(result, value, view, width);
}


float
WidgetAttributeText::CurrentWidth() const
{
	return fTruncatedWidth;
}


float
WidgetAttributeText::Width(const BPoseView* pose)
{
	FittingText(pose);
	return CurrentWidth();
}


void
WidgetAttributeText::SetUpEditing(BTextView*)
{
	ASSERT(fColumn->Editable());
}


bool
WidgetAttributeText::CommitEditedText(BTextView*)
{
	// can't do anything here at this point
	TRESPASS();
	return false;
}


status_t
WidgetAttributeText::AttrAsString(const Model* model, BString* result,
	const char* attrName, int32 attrType, float width, BView* view,
	int64* resultingValue)
{
	int64 value;

	status_t error = model->InitCheck();
	if (error != B_OK)
		return error;

	switch (attrType) {
		case B_TIME_TYPE:
			if (strcmp(attrName, kAttrStatModified) == 0)
				value = model->StatBuf()->st_mtime;
			else if (strcmp(attrName, kAttrStatCreated) == 0)
				value = model->StatBuf()->st_crtime;
			else {
				TRESPASS();
				// not yet supported
				return B_ERROR;
			}
			TruncTimeBase(result, value, view, width);
			if (resultingValue)
				*resultingValue = value;
			return B_OK;

		case B_STRING_TYPE:
			if (strcmp(attrName, kAttrPath) == 0) {
				BEntry entry(model->EntryRef());
				BPath path;
				BString tmp;

				if (entry.InitCheck() == B_OK
					&& entry.GetPath(&path) == B_OK) {
					tmp = path.Path();
					TruncateLeaf(&tmp);
				} else
					tmp = "-";

				if (width > 0) {
					TruncStringBase(result, tmp.String(), tmp.Length(), view,
						width);
				} else
					*result = tmp.String();

				return B_OK;
			}
			break;

		case kSizeType:
//			TruncFileSizeBase(result, model->StatBuf()->st_size, view, width);
			return B_OK;
			break;

		default:
			TRESPASS();
			// not yet supported
			return B_ERROR;

	}

	TRESPASS();
	return B_ERROR;
}


bool
WidgetAttributeText::IsEditable() const
{
	return fColumn->Editable()
		&& !BVolume(fModel->StatBuf()->st_dev).IsReadOnly();
}


void
WidgetAttributeText::SetDirty(bool value)
{
	fDirty = value;
}


// #pragma mark - StringAttributeText


StringAttributeText::StringAttributeText(const Model* model,
	const BColumn* column)
	:
	WidgetAttributeText(model, column),
	fValueDirty(true)
{
}


const char*
StringAttributeText::ValueAsText(const BPoseView* /*view*/)
{
	if (fValueDirty)
		ReadValue(&fFullValueText);

	return fFullValueText.String();
}


bool
StringAttributeText::CheckAttributeChanged()
{
	BString newString;
	ReadValue(&newString);

	if (newString == fFullValueText)
		return false;

	fFullValueText = newString;
	fDirty = true;		// have to redo fitted string
	return true;
}


void
StringAttributeText::FitValue(BString* result, const BPoseView* view)
{
	if (fValueDirty)
		ReadValue(&fFullValueText);
	fOldWidth = fColumn->Width();

	fTruncatedWidth = TruncString(result, fFullValueText.String(),
		fFullValueText.Length(), view, fOldWidth);
	fDirty = false;
}


float
StringAttributeText::PreferredWidth(const BPoseView* pose) const
{
	return pose->StringWidth(fFullValueText.String());
}


int
StringAttributeText::Compare(WidgetAttributeText& attr, BPoseView* view)
{
	StringAttributeText* compareTo
		= dynamic_cast<StringAttributeText*>(&attr);
	ASSERT(compareTo);

	if (fValueDirty)
		ReadValue(&fFullValueText);

	return NaturalCompare(fFullValueText.String(),
		compareTo->ValueAsText(view));
}


bool
StringAttributeText::CommitEditedText(BTextView* textView)
{
	ASSERT(fColumn->Editable());
	const char* text = textView->Text();

	if (fFullValueText == text) {
		// no change
		return false;
	}

	if (textView->TextLength() == 0) {
		// cannot do an empty name
		return false;
	}

	// cause re-truncation
	fDirty = true;

	if (!CommitEditedTextFlavor(textView))
		return false;

	// update text and width in this widget
	fFullValueText = text;

	return true;
}


// #pragma mark - ScalarAttributeText


ScalarAttributeText::ScalarAttributeText(const Model* model,
	const BColumn* column)
	:
	WidgetAttributeText(model, column),
	fValueDirty(true)
{
}


int64
ScalarAttributeText::Value()
{
	if (fValueDirty)
		fValue = ReadValue();
	return fValue;
}


bool
ScalarAttributeText::CheckAttributeChanged()
{
	int64 newValue = ReadValue();
	if (newValue == fValue)
		return false;

	fValue = newValue;
	fDirty = true;
		// have to redo fitted string
	return true;
}


float
ScalarAttributeText::PreferredWidth(const BPoseView* pose) const
{
	BString widthString;
	widthString << fValue;
	return pose->StringWidth(widthString.String());
}


int
ScalarAttributeText::Compare(WidgetAttributeText& attr, BPoseView*)
{
	ScalarAttributeText* compareTo
		= dynamic_cast<ScalarAttributeText*>(&attr);
	ASSERT(compareTo);
		// make sure we're not comparing apples and oranges

	if (fValueDirty)
		fValue = ReadValue();

	return fValue >= compareTo->Value()
		? (fValue == compareTo->Value() ? 0 : 1) : -1;
}


// #pragma mark - PathAttributeText


PathAttributeText::PathAttributeText(const Model* model, const BColumn* column)
	:
	StringAttributeText(model, column)
{
}


void
PathAttributeText::ReadValue(BString* result)
{
	// get the path
	BEntry entry(fModel->EntryRef());
	BPath path;

	if (entry.InitCheck() == B_OK && entry.GetPath(&path) == B_OK) {
		*result = path.Path();
		TruncateLeaf(result);
	} else
		*result = "-";

	fValueDirty = false;
}


// #pragma mark - OriginalPathAttributeText


OriginalPathAttributeText::OriginalPathAttributeText(const Model* model,
	const BColumn* column)
	:
	StringAttributeText(model, column)
{
}


void
OriginalPathAttributeText::ReadValue(BString* result)
{
	BEntry entry(fModel->EntryRef());
	BPath path;

	// get the original path
	if (entry.InitCheck() == B_OK && FSGetOriginalPath(&entry, &path) == B_OK)
		*result = path.Path();
	else
		*result = "-";

	fValueDirty = false;
}


// #pragma mark - KindAttributeText


KindAttributeText::KindAttributeText(const Model* model, const BColumn* column)
	:
	StringAttributeText(model, column)
{
}


void
KindAttributeText::ReadValue(BString* result)
{
	BMimeType mime;
	char desc[B_MIME_TYPE_LENGTH];

	// get the mime type
	if (mime.SetType(fModel->MimeType()) != B_OK)
		*result = B_TRANSLATE("Unknown");
	else if (mime.GetShortDescription(desc) == B_OK) {
		// get the short mime type description
		*result = desc;
	} else
		*result = fModel->MimeType();

	fValueDirty = false;
}


// #pragma mark - NameAttributeText


NameAttributeText::NameAttributeText(const Model* model,
	const BColumn* column)
	:
	StringAttributeText(model, column)
{
}


int
NameAttributeText::Compare(WidgetAttributeText& attr, BPoseView* view)
{
	NameAttributeText* compareTo = dynamic_cast<NameAttributeText*>(&attr);

	ASSERT(compareTo);

	if (fValueDirty)
		ReadValue(&fFullValueText);

	if (NameAttributeText::sSortFolderNamesFirst)
		return fModel->CompareFolderNamesFirst(attr.TargetModel());

	return NaturalCompare(fFullValueText.String(),
		compareTo->ValueAsText(view));
}


void
NameAttributeText::ReadValue(BString* result)
{
	*result = fModel->Name();

	fValueDirty = false;
}


void
NameAttributeText::FitValue(BString* result, const BPoseView* view)
{
	if (fValueDirty)
		ReadValue(&fFullValueText);
	fOldWidth = fColumn->Width();
	fTruncatedWidth = TruncString(result, fFullValueText.String(),
		fFullValueText.Length(), view, fOldWidth, B_TRUNCATE_END);
	fDirty = false;
}


void
NameAttributeText::SetUpEditing(BTextView* textView)
{
	DisallowFilenameKeys(textView);

	textView->SetMaxBytes(B_FILE_NAME_LENGTH);
	textView->SetText(fFullValueText.String(), fFullValueText.Length());
}


bool
NameAttributeText::CommitEditedTextFlavor(BTextView* textView)
{
	const char* text = textView->Text();

	BEntry entry(fModel->EntryRef());
	if (entry.InitCheck() != B_OK)
		return false;

	BDirectory	parent;
	if (entry.GetParent(&parent) != B_OK)
		return false;

	bool removeExisting = false;
	if (parent.Contains(text)) {
		BAlert* alert = new BAlert("",
			B_TRANSLATE("That name is already taken. "
			"Please type another one."),
			B_TRANSLATE("Replace other file"),
			B_TRANSLATE("OK"),
			NULL, B_WIDTH_AS_USUAL, B_WARNING_ALERT);
		alert->SetShortcut(0, 'r');
		if (alert->Go())
			return false;

		removeExisting = true;
	}

	// TODO:
	// use model-flavor specific virtuals for all of these special
	// renamings
	status_t result;
	if (fModel->IsVolume()) {
		BVolume	volume(fModel->NodeRef()->device);
		result = volume.InitCheck();
		if (result == B_OK) {
			RenameVolumeUndo undo(volume, text);

			result = volume.SetName(text);
			if (result != B_OK)
				undo.Remove();
		}
	} else {
		if (fModel->IsQuery()) {
			BModelWriteOpener opener(fModel);
			ASSERT(fModel->Node());
			MoreOptionsStruct::SetQueryTemporary(fModel->Node(), false);
		}

		RenameUndo undo(entry, text);

		result = entry.Rename(text, removeExisting);
		if (result != B_OK)
			undo.Remove();
	}

	return result == B_OK;
}


void
NameAttributeText::SetSortFolderNamesFirst(bool enabled)
{
	NameAttributeText::sSortFolderNamesFirst = enabled;
}


bool
NameAttributeText::IsEditable() const
{
	return StringAttributeText::IsEditable()
		&& !fModel->HasLocalizedName();
}


// #pragma mark - RealNameAttributeText


RealNameAttributeText::RealNameAttributeText(const Model* model,
	const BColumn* column)
	:
	StringAttributeText(model, column)
{
}


int
RealNameAttributeText::Compare(WidgetAttributeText& attr, BPoseView* view)
{
	RealNameAttributeText* compareTo
		= dynamic_cast<RealNameAttributeText*>(&attr);

	ASSERT(compareTo);

	if (fValueDirty)
		ReadValue(&fFullValueText);

	if (RealNameAttributeText::sSortFolderNamesFirst)
		return fModel->CompareFolderNamesFirst(attr.TargetModel());

	return NaturalCompare(fFullValueText.String(),
		compareTo->ValueAsText(view));
}


void
RealNameAttributeText::ReadValue(BString* result)
{
	*result = fModel->EntryRef()->name;

	fValueDirty = false;
}


void
RealNameAttributeText::FitValue(BString* result, const BPoseView* view)
{
	if (fValueDirty)
		ReadValue(&fFullValueText);
	fOldWidth = fColumn->Width();
	fTruncatedWidth = TruncString(result, fFullValueText.String(),
		fFullValueText.Length(), view, fOldWidth, B_TRUNCATE_END);
	fDirty = false;
}


void
RealNameAttributeText::SetUpEditing(BTextView* textView)
{
	DisallowFilenameKeys(textView);

	textView->SetMaxBytes(B_FILE_NAME_LENGTH);
	textView->SetText(fFullValueText.String(), fFullValueText.Length());
}


bool
RealNameAttributeText::CommitEditedTextFlavor(BTextView* textView)
{
	const char* text = textView->Text();

	BEntry entry(fModel->EntryRef());
	if (entry.InitCheck() != B_OK)
		return false;

	BDirectory	parent;
	if (entry.GetParent(&parent) != B_OK)
		return false;

	bool removeExisting = false;
	if (parent.Contains(text)) {
		BAlert* alert = new BAlert("",
			B_TRANSLATE("That name is already taken. "
			"Please type another one."),
			B_TRANSLATE("Replace other file"),
			B_TRANSLATE("OK"),
			NULL, B_WIDTH_AS_USUAL, B_WARNING_ALERT);

		alert->SetShortcut(0, 'r');

		if (alert->Go())
			return false;

		removeExisting = true;
	}

	// TODO:
	// use model-flavor specific virtuals for all of these special
	// renamings
	status_t result;
	if (fModel->IsVolume()) {
		BVolume	volume(fModel->NodeRef()->device);
		result = volume.InitCheck();
		if (result == B_OK) {
			RenameVolumeUndo undo(volume, text);

			result = volume.SetName(text);
			if (result != B_OK)
				undo.Remove();
		}
	} else {
		if (fModel->IsQuery()) {
			BModelWriteOpener opener(fModel);
			ASSERT(fModel->Node());
			MoreOptionsStruct::SetQueryTemporary(fModel->Node(), false);
		}

		RenameUndo undo(entry, text);

		result = entry.Rename(text, removeExisting);
		if (result != B_OK)
			undo.Remove();
	}

	return result == B_OK;
}


void
RealNameAttributeText::SetSortFolderNamesFirst(bool enabled)
{
	RealNameAttributeText::sSortFolderNamesFirst = enabled;
}


// #pragma mark - owner/group


#ifdef OWNER_GROUP_ATTRIBUTES
OwnerAttributeText::OwnerAttributeText(const Model* model,
	const BColumn* column)
	:
	StringAttributeText(model, column)
{
}


void
OwnerAttributeText::ReadValue(BString* result)
{
	uid_t nodeOwner = fModel->StatBuf()->st_uid;
	BString user;

	if (nodeOwner == 0) {
		if (getenv("USER") != NULL)
			user << getenv("USER");
		else
			user << "root";
	} else
		user << nodeOwner;
	*result = user.String();

	fValueDirty = false;
}


GroupAttributeText::GroupAttributeText(const Model* model,
	const BColumn* column)
	:
	StringAttributeText(model, column)
{
}


void
GroupAttributeText::ReadValue(BString* result)
{
	gid_t nodeGroup = fModel->StatBuf()->st_gid;
	BString group;

	if (nodeGroup == 0) {
		if (getenv("GROUP") != NULL)
			group << getenv("GROUP");
		else
			group << "0";
	} else
		group << nodeGroup;
	*result = group.String();

	fValueDirty = false;
}
#endif  // OWNER_GROUP_ATTRIBUTES


//	#pragma mark - ModeAttributeText


ModeAttributeText::ModeAttributeText(const Model* model,
	const BColumn* column)
	:
	StringAttributeText(model, column)
{
}


void
ModeAttributeText::ReadValue(BString* result)
{
	mode_t mode = fModel->StatBuf()->st_mode;
	mode_t baseMask = 00400;
	char buffer[11];

	char* scanner = buffer;

	if (S_ISDIR(mode))
		*scanner++ = 'd';
	else if (S_ISLNK(mode))
		*scanner++ = 'l';
	else if (S_ISBLK(mode))
		*scanner++ = 'b';
	else if (S_ISCHR(mode))
		*scanner++ = 'c';
	else
		*scanner++ = '-';

	for (int32 index = 0; index < 9; index++) {
		*scanner++ = (mode & baseMask) ? "rwx"[index % 3] : '-';
		baseMask >>= 1;
	}

	*scanner = 0;
	*result = buffer;

	fValueDirty = false;
}


//	#pragma mark - SizeAttributeText


SizeAttributeText::SizeAttributeText(const Model* model,
	const BColumn* column)
	:
	ScalarAttributeText(model, column)
{
}


int64
SizeAttributeText::ReadValue()
{
	fValueDirty = false;
	// get the size

	if (fModel->IsVolume()) {
		BVolume volume(fModel->NodeRef()->device);

		return volume.Capacity();
	}

	if (fModel->IsDirectory() || fModel->IsQuery()
		|| fModel->IsQueryTemplate() || fModel->IsSymLink()
		|| fModel->IsVirtualDirectory())
		return kUnknownSize;

	fValueIsDefined = true;

	return fModel->StatBuf()->st_size;
}


void
SizeAttributeText::FitValue(BString* result, const BPoseView* view)
{
	if (fValueDirty)
		fValue = ReadValue();
	fOldWidth = fColumn->Width();
	fTruncatedWidth = TruncFileSize(result, fValue, view, fOldWidth);
	fDirty = false;
}


float
SizeAttributeText::PreferredWidth(const BPoseView* pose) const
{
	if (fValueIsDefined) {
		BString widthString;
		TruncFileSize(&widthString, fValue, pose, 100000);
		return pose->StringWidth(widthString.String());
	}
	return pose->StringWidth("-");
}


// #pragma mark - TimeAttributeText


TimeAttributeText::TimeAttributeText(const Model* model,
	const BColumn* column)
	:
	ScalarAttributeText(model, column)
{
}


float
TimeAttributeText::PreferredWidth(const BPoseView* pose) const
{
	BString widthString;
	TruncTimeBase(&widthString, fValue, pose, 100000);
	return pose->StringWidth(widthString.String());
}


void
TimeAttributeText::FitValue(BString* result, const BPoseView* view)
{
	if (fValueDirty)
		fValue = ReadValue();
	fOldWidth = fColumn->Width();
	fTruncatedWidth = TruncTime(result, fValue, view, fOldWidth);
	fDirty = false;
}


bool
TimeAttributeText::CheckSettingsChanged(void)
{
	// TODO : check against the actual locale settings
	return false;
}


//	#pragma mark - CreationTimeAttributeText


CreationTimeAttributeText::CreationTimeAttributeText(const Model* model,
	const BColumn* column)
	:
	TimeAttributeText(model, column)
{
}


int64
CreationTimeAttributeText::ReadValue()
{
	fValueDirty = false;
	fValueIsDefined = true;
	return fModel->StatBuf()->st_crtime;
}


//	#pragma mark - ModificationTimeAttributeText


ModificationTimeAttributeText::ModificationTimeAttributeText(
	const Model* model, const BColumn* column)
	:
	TimeAttributeText(model, column)
{
}


int64
ModificationTimeAttributeText::ReadValue()
{
	fValueDirty = false;
	fValueIsDefined = true;
	return fModel->StatBuf()->st_mtime;
}


//	#pragma mark - GenericAttributeText


GenericAttributeText::GenericAttributeText(const Model* model,
	const BColumn* column)
	:
	StringAttributeText(model, column)
{
}


bool
GenericAttributeText::CheckAttributeChanged()
{
	GenericValueStruct tmpValue = fValue;
	BString tmpString(fFullValueText);
	ReadValue(&fFullValueText);

	// fDirty could already be true, in that case we mustn't set it to
	// false, even if the attribute text hasn't changed
	bool changed = fValue.int64t != tmpValue.int64t
		|| tmpString != fFullValueText;
	if (changed)
		fDirty = true;

	return fDirty;
}


float
GenericAttributeText::PreferredWidth(const BPoseView* pose) const
{
	return pose->StringWidth(fFullValueText.String());
}


void
GenericAttributeText::ReadValue(BString* result)
{
	BModelOpener opener(const_cast<Model*>(fModel));

	ssize_t length = 0;
	fFullValueText = "-";
	fValue.int64t = 0;
	fValueIsDefined = false;
	fValueDirty = false;

	if (!fModel->Node())
		return;

	switch (fColumn->AttrType()) {
		case B_STRING_TYPE:
		{
			char buffer[kGenericReadBufferSize];
			length = fModel->Node()->ReadAttr(fColumn->AttrName(),
				fColumn->AttrType(), 0, buffer, kGenericReadBufferSize - 1);

			if (length > 0) {
				buffer[length] = '\0';
				// make sure the buffer is null-terminated even if we
				// didn't read the whole attribute in or it wasn't to
				// begin with

				*result = buffer;
				fValueIsDefined = true;
			}
			break;
		}

		case B_SSIZE_T_TYPE:
		case B_TIME_TYPE:
		case B_OFF_T_TYPE:
		case B_FLOAT_TYPE:
		case B_BOOL_TYPE:
		case B_CHAR_TYPE:
		case B_INT8_TYPE:
		case B_INT16_TYPE:
		case B_INT32_TYPE:
		case B_INT64_TYPE:
		case B_UINT8_TYPE:
		case B_UINT16_TYPE:
		case B_UINT32_TYPE:
		case B_UINT64_TYPE:
		case B_DOUBLE_TYPE:
		{
			// read in the numerical bit representation and attach it
			// with a type, depending on the bytes that could be read
			attr_info info;
			GenericValueStruct tmp;
			if (fModel->Node()->GetAttrInfo(fColumn->AttrName(), &info)
					== B_OK) {
				if (info.size && info.size <= (off_t)sizeof(int64)) {
					length = fModel->Node()->ReadAttr(fColumn->AttrName(),
						fColumn->AttrType(), 0, &tmp, (size_t)info.size);
				}

				// We used tmp as a block of memory, now set the
				// correct fValue:

				if (length == info.size) {
					if (fColumn->AttrType() == B_FLOAT_TYPE
						|| fColumn->AttrType() == B_DOUBLE_TYPE) {
						// filter out special float/double types
						switch (info.size) {
							case sizeof(float):
								fValueIsDefined = true;
								fValue.floatt = tmp.floatt;
								break;

							case sizeof(double):
								fValueIsDefined = true;
								fValue.doublet = tmp.doublet;
								break;

							default:
								TRESPASS();
								break;
						}
					} else {
						// handle the standard data types
						switch (info.size) {
							case sizeof(char):
								// Takes care of bool too.
								fValueIsDefined = true;
								fValue.int8t = tmp.int8t;
								break;

							case sizeof(int16):
								fValueIsDefined = true;
								fValue.int16t = tmp.int16t;
								break;

							case sizeof(int32):
								// Takes care of time_t too.
								fValueIsDefined = true;
								fValue.int32t = tmp.int32t;
								break;

							case sizeof(int64):
								// Takes care of off_t too.
								fValueIsDefined = true;
								fValue.int64t = tmp.int64t;
								break;

							default:
								TRESPASS();
								break;
						}
					}
				}
			}
			break;
		}
	}
}


void
GenericAttributeText::FitValue(BString* result, const BPoseView* view)
{
	if (fValueDirty)
		ReadValue(&fFullValueText);

	fOldWidth = fColumn->Width();

	if (!fValueIsDefined) {
		*result = "-";
		fTruncatedWidth = TruncString(result, fFullValueText.String(),
			fFullValueText.Length(), view, fOldWidth);
		fDirty = false;
		return;
	}

	char buffer[256];

	switch (fColumn->AttrType()) {
		case B_SIZE_T_TYPE:
			TruncFileSizeBase(result, fValue.int32t, view, fOldWidth);
			return;

		case B_SSIZE_T_TYPE:
			if (fValue.int32t > 0) {
				TruncFileSizeBase(result, fValue.int32t, view, fOldWidth);
				return;
			}
			sprintf(buffer, "%s", strerror(fValue.int32t));
			fFullValueText = buffer;
			break;

		case B_STRING_TYPE:
			fTruncatedWidth = TruncString(result, fFullValueText.String(),
				fFullValueText.Length(), view, fOldWidth);
			fDirty = false;
			return;

		case B_OFF_T_TYPE:
			// As a side effect update the fFullValueText to the string
			// representation of value
			TruncFileSize(&fFullValueText, fValue.off_tt, view, 100000);
			fTruncatedWidth = TruncFileSize(result, fValue.off_tt, view,
				fOldWidth);
			fDirty = false;
			return;

		case B_TIME_TYPE:
			// As a side effect update the fFullValueText to the string
			// representation of value
			TruncTime(&fFullValueText, fValue.time_tt, view, 100000);
			fTruncatedWidth = TruncTime(result, fValue.time_tt, view,
				fOldWidth);
			fDirty = false;
			return;

		case B_BOOL_TYPE:
			// For now use true/false, would be nice to be able to set
			// the value text

 			sprintf(buffer, "%s", fValue.boolt ? "true" : "false");
			fFullValueText = buffer;
			break;

		case B_CHAR_TYPE:
			// Make sure no non-printable characters are displayed:
			if (!isprint(fValue.uint8t)) {
				*result = "-";
				fTruncatedWidth = TruncString(result, fFullValueText.String(),
					fFullValueText.Length(), view, fOldWidth);
				fDirty = false;
				return;
			}

			sprintf(buffer, "%c", fValue.uint8t);
			fFullValueText = buffer;
			break;

		case B_INT8_TYPE:
			sprintf(buffer, "%d", fValue.int8t);
			fFullValueText = buffer;
			break;

		case B_UINT8_TYPE:
			sprintf(buffer, "%d", fValue.uint8t);
			fFullValueText = buffer;
			break;

		case B_INT16_TYPE:
			sprintf(buffer, "%d", fValue.int16t);
			fFullValueText = buffer;
			break;

		case B_UINT16_TYPE:
			sprintf(buffer, "%d", fValue.uint16t);
			fFullValueText = buffer;
			break;

		case B_INT32_TYPE:
			sprintf(buffer, "%" B_PRId32, fValue.int32t);
			fFullValueText = buffer;
			break;

		case B_UINT32_TYPE:
			sprintf(buffer, "%" B_PRId32, fValue.uint32t);
			fFullValueText = buffer;
			break;

		case B_INT64_TYPE:
			sprintf(buffer, "%" B_PRId64, fValue.int64t);
			fFullValueText = buffer;
			break;

		case B_UINT64_TYPE:
			sprintf(buffer, "%" B_PRId64, fValue.uint64t);
			fFullValueText = buffer;
			break;

		case B_FLOAT_TYPE:
			snprintf(buffer, sizeof(buffer), "%g", fValue.floatt);
			fFullValueText = buffer;
			break;

		case B_DOUBLE_TYPE:
			snprintf(buffer, sizeof(buffer), "%g", fValue.doublet);
			fFullValueText = buffer;
			break;

		default:
			*result = "-";
			fTruncatedWidth = TruncString(result, fFullValueText.String(),
				fFullValueText.Length(), view, fOldWidth);
			fDirty = false;
			return;
	}
	fTruncatedWidth = TruncString(result, buffer, (ssize_t)strlen(buffer), view,
		fOldWidth);
	fDirty = false;
}


const char*
GenericAttributeText::ValueAsText(const BPoseView* view)
{
	// TODO: redesign this - this is to make sure the value is valid
	bool oldDirty = fDirty;
	BString result;
	FitValue(&result, view);
	fDirty = oldDirty;

	return fFullValueText.String();
}


int
GenericAttributeText::Compare(WidgetAttributeText& attr, BPoseView*)
{
	GenericAttributeText* compareTo
		= dynamic_cast<GenericAttributeText*>(&attr);
	ASSERT(compareTo);

	if (fValueDirty)
		ReadValue(&fFullValueText);
	if (compareTo->fValueDirty)
		compareTo->ReadValue(&compareTo->fFullValueText);

	// sort undefined values last, regardless of the other value
	if (!fValueIsDefined)
		return compareTo->fValueIsDefined ? 1 : 0;

	if (!compareTo->fValueIsDefined)
		return -1;

	switch (fColumn->AttrType()) {
		case B_STRING_TYPE:
			return fFullValueText.ICompare(compareTo->fFullValueText);

		case B_CHAR_TYPE:
		{
			char vStr[2] = { static_cast<char>(fValue.uint8t), 0 };
			char cStr[2] = { static_cast<char>(compareTo->fValue.uint8t), 0};

			BString valueStr(vStr);
			BString compareToStr(cStr);

			return valueStr.ICompare(compareToStr);
		}

		case B_FLOAT_TYPE:
			return fValue.floatt >= compareTo->fValue.floatt ?
				(fValue.floatt == compareTo->fValue.floatt ? 0 : 1) : -1;

		case B_DOUBLE_TYPE:
			return fValue.doublet >= compareTo->fValue.doublet ?
				(fValue.doublet == compareTo->fValue.doublet ? 0 : 1) : -1;

		case B_BOOL_TYPE:
			return fValue.boolt >= compareTo->fValue.boolt ?
				(fValue.boolt == compareTo->fValue.boolt ? 0 : 1) : -1;

		case B_UINT8_TYPE:
			return fValue.uint8t >= compareTo->fValue.uint8t ?
				(fValue.uint8t == compareTo->fValue.uint8t ? 0 : 1) : -1;

		case B_INT8_TYPE:
			return fValue.int8t >= compareTo->fValue.int8t ?
					(fValue.int8t == compareTo->fValue.int8t ? 0 : 1) : -1;

		case B_UINT16_TYPE:
			return fValue.uint16t >= compareTo->fValue.uint16t ?
				(fValue.uint16t == compareTo->fValue.uint16t ? 0 : 1) : -1;

		case B_INT16_TYPE:
			return fValue.int16t >= compareTo->fValue.int16t ?
				(fValue.int16t == compareTo->fValue.int16t ? 0 : 1) : -1;

		case B_UINT32_TYPE:
			return fValue.uint32t >= compareTo->fValue.uint32t ?
				(fValue.uint32t == compareTo->fValue.uint32t ? 0 : 1) : -1;

		case B_TIME_TYPE:
			// time_t typedef'd to a long, i.e. a int32
		case B_INT32_TYPE:
			return fValue.int32t >= compareTo->fValue.int32t ?
				(fValue.int32t == compareTo->fValue.int32t ? 0 : 1) : -1;

		case B_OFF_T_TYPE:
			// off_t typedef'd to a long long, i.e. a int64
		case B_INT64_TYPE:
			return fValue.int64t >= compareTo->fValue.int64t ?
				(fValue.int64t == compareTo->fValue.int64t ? 0 : 1) : -1;

		case B_UINT64_TYPE:
		default:
			return fValue.uint64t >= compareTo->fValue.uint64t ?
				(fValue.uint64t == compareTo->fValue.uint64t ? 0 : 1) : -1;
	}

	return 0;
}


bool
GenericAttributeText::CommitEditedText(BTextView* textView)
{
	ASSERT(fColumn->Editable());
	const char* text = textView->Text();

	if (fFullValueText == text)
		// no change
		return false;

	if (!CommitEditedTextFlavor(textView))
		return false;

	// update text and width in this widget
	fFullValueText = text;
	// cause re-truncation
	fDirty = true;
	fValueDirty = true;

	return true;
}


void
GenericAttributeText::SetUpEditing(BTextView* textView)
{
	textView->SetMaxBytes(kGenericReadBufferSize - 1);
	textView->SetText(fFullValueText.String(), fFullValueText.Length());
}


bool
GenericAttributeText::CommitEditedTextFlavor(BTextView* textView)
{
	BNode node(fModel->EntryRef());

	if (node.InitCheck() != B_OK)
		return false;

	uint32 type = fColumn->AttrType();

	if (type != B_STRING_TYPE
		&& type != B_UINT64_TYPE
		&& type != B_UINT32_TYPE
		&& type != B_UINT16_TYPE
		&& type != B_UINT8_TYPE
		&& type != B_INT64_TYPE
		&& type != B_INT32_TYPE
		&& type != B_INT16_TYPE
		&& type != B_INT8_TYPE
		&& type != B_OFF_T_TYPE
		&& type != B_TIME_TYPE
		&& type != B_FLOAT_TYPE
		&& type != B_DOUBLE_TYPE
		&& type != B_CHAR_TYPE
		&& type != B_BOOL_TYPE) {
		BAlert* alert = new BAlert("",
			B_TRANSLATE("Sorry, you cannot edit that attribute."),
			B_TRANSLATE("Cancel"),
			0, 0, B_WIDTH_AS_USUAL, B_STOP_ALERT);
		alert->SetFlags(alert->Flags() | B_CLOSE_ON_ESCAPE);
		alert->Go();
		return false;
	}

	const char* columnName = fColumn->AttrName();
	ssize_t size = 0;

	switch (type) {
		case B_STRING_TYPE:
			size = fModel->WriteAttr(columnName, type, 0, textView->Text(),
				(size_t)(textView->TextLength() + 1));
			break;

		case B_BOOL_TYPE:
		{
			bool value = strncasecmp(textView->Text(), "0", 1) != 0
				&& strncasecmp(textView->Text(), "off", 2) != 0
				&& strncasecmp(textView->Text(), "no", 3) != 0
				&& strncasecmp(textView->Text(), "false", 4) != 0
				&& strlen(textView->Text()) != 0;

			size = fModel->WriteAttr(columnName, type, 0, &value, sizeof(bool));
			break;
		}

		case B_CHAR_TYPE:
		{
			char ch;
			sscanf(textView->Text(), "%c", &ch);
			//Check if we read the start of a multi-byte glyph:
			if (!isprint(ch)) {
				BAlert* alert = new BAlert("",
					B_TRANSLATE("Sorry, the 'Character' "
					"attribute cannot store a multi-byte glyph."),
					B_TRANSLATE("Cancel"),
					0, 0, B_WIDTH_AS_USUAL, B_STOP_ALERT);
				alert->SetFlags(alert->Flags() | B_CLOSE_ON_ESCAPE);
				alert->Go();
				return false;
			}

			size = fModel->WriteAttr(columnName, type, 0, &ch, sizeof(char));
			break;
		}

		case B_FLOAT_TYPE:
		{
			float floatVal;

			if (sscanf(textView->Text(), "%f", &floatVal) == 1) {
				fValueIsDefined = true;
				fValue.floatt = floatVal;
				size = fModel->WriteAttr(columnName, type, 0, &floatVal,
					sizeof(float));
			} else {
				// If the value was already defined, it's on disk.
				// Otherwise not.
				return fValueIsDefined;
			}
			break;
		}

		case B_DOUBLE_TYPE:
		{
			double doubleVal;

			if (sscanf(textView->Text(), "%lf", &doubleVal) == 1) {
				fValueIsDefined = true;
				fValue.doublet = doubleVal;
				size = fModel->WriteAttr(columnName, type, 0, &doubleVal,
					sizeof(double));
			} else {
				// If the value was already defined, it's on disk.
				// Otherwise not.
				return fValueIsDefined;
			}
			break;
		}

		case B_TIME_TYPE:
		case B_OFF_T_TYPE:
		case B_UINT64_TYPE:
		case B_UINT32_TYPE:
		case B_UINT16_TYPE:
		case B_UINT8_TYPE:
		case B_INT64_TYPE:
		case B_INT32_TYPE:
		case B_INT16_TYPE:
		case B_INT8_TYPE:
		{
			GenericValueStruct tmp;
			size_t scalarSize = 0;

			switch (type) {
				case B_TIME_TYPE:
					tmp.time_tt = parsedate(textView->Text(), time(0));
					scalarSize = sizeof(time_t);
					break;

				// do some size independent conversion on builtin types
				case B_OFF_T_TYPE:
					tmp.off_tt = StringToScalar(textView->Text());
					scalarSize = sizeof(off_t);
					break;

				case B_UINT64_TYPE:
				case B_INT64_TYPE:
					tmp.int64t = StringToScalar(textView->Text());
					scalarSize = sizeof(int64);
					break;

				case B_UINT32_TYPE:
				case B_INT32_TYPE:
					tmp.int32t = (int32)StringToScalar(textView->Text());
					scalarSize = sizeof(int32);
					break;

				case B_UINT16_TYPE:
				case B_INT16_TYPE:
					tmp.int16t = (int16)StringToScalar(textView->Text());
					scalarSize = sizeof(int16);
					break;

				case B_UINT8_TYPE:
				case B_INT8_TYPE:
					tmp.int8t = (int8)StringToScalar(textView->Text());
					scalarSize = sizeof(int8);
					break;

				default:
					TRESPASS();
			}

			size = fModel->WriteAttr(columnName, type, 0, &tmp, scalarSize);
			break;
		}
	}

	if (size < 0) {
		BAlert* alert = new BAlert("",
			B_TRANSLATE("There was an error writing the attribute."),
			B_TRANSLATE("Cancel"),
			0, 0, B_WIDTH_AS_USUAL, B_WARNING_ALERT);
		alert->SetFlags(alert->Flags() | B_CLOSE_ON_ESCAPE);
		alert->Go();

		fValueIsDefined = false;
		return false;
	}

	fValueIsDefined = true;
	return true;
}


// #pragma mark - DurationAttributeText (display as: duration)


DurationAttributeText::DurationAttributeText(const Model* model,
	const BColumn* column)
	:
	GenericAttributeText(model, column)
{
}


// TODO: support editing!


void
DurationAttributeText::FitValue(BString* result, const BPoseView* view)
{
	if (fValueDirty)
		ReadValue(&fFullValueText);

	fOldWidth = fColumn->Width();
	fDirty = false;

	if (!fValueIsDefined) {
		*result = "-";
		fTruncatedWidth = TruncString(result, fFullValueText.String(),
			fFullValueText.Length(), view, fOldWidth);
		return;
	}

	int64 time = 0;

	switch (fColumn->AttrType()) {
		case B_TIME_TYPE:
			time = fValue.time_tt * 1000000LL;
			break;

		case B_INT8_TYPE:
			time = fValue.int8t * 1000000LL;
			break;

		case B_INT16_TYPE:
			time = fValue.int16t * 1000000LL;
			break;

		case B_INT32_TYPE:
			time = fValue.int32t * 1000000LL;
			break;

		case B_INT64_TYPE:
			time = fValue.int64t;
			break;
	}

	// TODO: ignores micro seconds for now
	int32 seconds = time / 1000000LL;

	bool negative = seconds < 0;
	if (negative)
		seconds = -seconds;

	int32 hours = seconds / 3600;
	seconds -= hours * 3600;
	int32 minutes = seconds / 60;
	seconds = seconds % 60;

	char buffer[256];
	if (hours > 0) {
		snprintf(buffer, sizeof(buffer), "%s%" B_PRId32 ":%02" B_PRId32 ":%02"
			B_PRId32, negative ? "-" : "", hours, minutes, seconds);
	} else {
		snprintf(buffer, sizeof(buffer), "%s%" B_PRId32 ":%02" B_PRId32,
			negative ? "-" : "", minutes, seconds);
	}

	fFullValueText = buffer;

	fTruncatedWidth = TruncString(result, fFullValueText.String(),
		fFullValueText.Length(), view, fOldWidth);
}


// #pragma mark - CheckboxAttributeText (display as: checkbox)


CheckboxAttributeText::CheckboxAttributeText(const Model* model,
	const BColumn* column)
	:
	GenericAttributeText(model, column),
	fOnChar("✖"),
	fOffChar("-")
{
	// TODO: better have common data in the column object!
	if (const char* separator = strchr(column->DisplayAs(), ':')) {
		BString chars(separator + 1);
		int32 length;
		const char* c = chars.CharAt(0, &length);
		fOnChar.SetTo(c, length);
		if (c[length]) {
			c = chars.CharAt(1, &length);
			fOffChar.SetTo(c, length);
		}
	}
}


void
CheckboxAttributeText::SetUpEditing(BTextView* view)
{
	// TODO: support editing for real!
	BString result;
	GenericAttributeText::FitValue(&result, NULL);
	GenericAttributeText::SetUpEditing(view);
}


void
CheckboxAttributeText::FitValue(BString* result, const BPoseView* view)
{
	if (fValueDirty)
		ReadValue(&fFullValueText);

	fOldWidth = fColumn->Width();
	fDirty = false;

	if (!fValueIsDefined) {
		*result = fOffChar;
		fTruncatedWidth = TruncString(result, fFullValueText.String(),
			fFullValueText.Length(), view, fOldWidth);
		return;
	}

	bool checked = false;

	switch (fColumn->AttrType()) {
		case B_BOOL_TYPE:
			checked = fValue.boolt;
			break;

		case B_INT8_TYPE:
		case B_UINT8_TYPE:
			checked = fValue.int8t != 0;
			break;

		case B_INT16_TYPE:
		case B_UINT16_TYPE:
			checked = fValue.int16t != 0;
			break;

		case B_INT32_TYPE:
		case B_UINT32_TYPE:
			checked = fValue.int32t != 0;
			break;
	}

	fFullValueText = checked ? fOnChar : fOffChar;

	fTruncatedWidth = TruncString(result, fFullValueText.String(),
		fFullValueText.Length(), view, fOldWidth);
}


// #pragma mark - RatingAttributeText (display as: rating)


RatingAttributeText::RatingAttributeText(const Model* model,
	const BColumn* column)
	:
	GenericAttributeText(model, column),
	fCount(5),
	fMax(10)
{
	// TODO: support different star counts/max via specifier
}


void
RatingAttributeText::SetUpEditing(BTextView* view)
{
	// TODO: support editing for real!
	BString result;
	GenericAttributeText::FitValue(&result, NULL);
	GenericAttributeText::SetUpEditing(view);
}


void
RatingAttributeText::FitValue(BString* result, const BPoseView* view)
{
	if (fValueDirty)
		ReadValue(&fFullValueText);

	fOldWidth = fColumn->Width();
	fDirty = false;

	int64 rating = 0;

	if (fValueIsDefined) {
		switch (fColumn->AttrType()) {
			case B_INT8_TYPE:
				rating = fValue.int8t;
				break;

			case B_INT16_TYPE:
				rating = fValue.int16t;
				break;

			case B_INT32_TYPE:
				rating = fValue.int32t;
				break;
		}
	}

	if (rating > fMax)
		rating = fMax;
	if (rating < 0)
		rating = 0;

	int32 steps = fMax / fCount;
	fFullValueText = "";

	for (int32 i = 0; i < fCount; i++) {
		if (rating > i * steps)
			fFullValueText += "★";
		else
			fFullValueText += "☆";
	}

	fTruncatedWidth = TruncString(result, fFullValueText.String(),
		fFullValueText.Length(), view, fOldWidth);
}


// #pragma mark - OpenWithRelationAttributeText


OpenWithRelationAttributeText::OpenWithRelationAttributeText(const Model* model,
	const BColumn* column, const BPoseView* view)
	:
	ScalarAttributeText(model, column),
	fPoseView(view)
{
}


int64
OpenWithRelationAttributeText::ReadValue()
{
	fValueDirty = false;

	const OpenWithPoseView* view
		= dynamic_cast<const OpenWithPoseView*>(fPoseView);
	if (view != NULL) {
		fValue = view->OpenWithRelation(fModel);
		fValueIsDefined = true;
	}

	return fValue;
}


float
OpenWithRelationAttributeText::PreferredWidth(const BPoseView* pose) const
{
	BString widthString;
	TruncString(&widthString, fRelationText.String(), fRelationText.Length(),
		pose, 500, B_TRUNCATE_END);
	return pose->StringWidth(widthString.String());
}


void
OpenWithRelationAttributeText::FitValue(BString* result, const BPoseView* view)
{
	if (fValueDirty)
		ReadValue();

	ASSERT(view == fPoseView);
	const OpenWithPoseView* launchWithView
		= dynamic_cast<const OpenWithPoseView*>(view);

	if (launchWithView)
		launchWithView->OpenWithRelationDescription(fModel, &fRelationText);

	fOldWidth = fColumn->Width();
	fTruncatedWidth = TruncString(result, fRelationText.String(),
		fRelationText.Length(), view, fOldWidth, B_TRUNCATE_END);
	fDirty = false;
}


// #pragma mark - VersionAttributeText


VersionAttributeText::VersionAttributeText(const Model* model,
	const BColumn* column, bool app)
	:
	StringAttributeText(model, column),
	fAppVersion(app)
{
}


void
VersionAttributeText::ReadValue(BString* result)
{
	fValueDirty = false;

	BModelOpener opener(fModel);
	BFile* file = dynamic_cast<BFile*>(fModel->Node());
	if (file) {
		BAppFileInfo info(file);
		version_info version;
		if (info.InitCheck() == B_OK
			&& info.GetVersionInfo(&version, fAppVersion
					? B_APP_VERSION_KIND : B_SYSTEM_VERSION_KIND) == B_OK) {
			*result = version.short_info;
			return;
		}
	}
	*result = "-";
}