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#import "TabSelectionCell.h"
#define TAB_IMAGE_WIDTH 14.0
#define TAB_IMAGE_HEIGHT 17.0
#define HALF_TAB_WIDTH 7.0
@implementation TabSelectionCell
/* Methods overridden from superclass */
- initTextCell:(const char *)aString
{
/* Do the superclass' initTextCell: method */
[super initTextCell:aString];
/* Finish the initializing process */
[self finishInitializing];
return self;
}
- awake
{
/* Do the superclass' awake method */
[super awake];
/* Finish the initializing process */
[self finishInitializing];
return self;
}
- setFont:fontObj
{
/* Do the superclass' init method */
[super setFont:fontObj];
/* Grab the font information for the contents of the cell */
NXTextFontInfo(fontObj,&ascender,&descender,&lineHeight);
return self;
}
- drawInside:(const NXRect *)cellFrame inView:controlView
{
NXPoint leftImageOrigin,rightImageOrigin;
NXRect textFrame,lowerBezelFrame;
id controlCellList = [controlView cellList];
int ourIndex = [controlCellList indexOf:self];
/* If there are no contents */
if (!contents)
{
/* Exit here! */
return self;
}
/* Set the drawing to be totally opaque */
PSsetalpha(1.0);
/* Set up the lowerBezelFrame that will be used for drawing the bezel at
our bottom */
NXSetRect(&lowerBezelFrame,
cellFrame->origin.x + HALF_TAB_WIDTH,
NX_MAXY(cellFrame) - 1.0,
cellFrame->size.width,
1.0);
/* Set textFrame to cellFrame */
textFrame = *cellFrame;
/* Set up the leftImageOrigin */
leftImageOrigin.x = NX_X(cellFrame);
leftImageOrigin.y = NX_MAXY(cellFrame);
/* If ourIndex is 0 (we are the first cell) */
if (ourIndex == 0)
{
/* If we are selected */
if ([self isSelected])
{
/* Composite tabBeginSelectedImage to leftImageOrigin */
[tabBeginSelectedImage composite:NX_SOVER
toPoint:&leftImageOrigin];
}
else
{
/* Otherwise, composite tabBeginImage to leftImageOrigin */
[tabBeginImage composite:NX_SOVER toPoint:&leftImageOrigin];
/* Subtract a HALF_TAB_WIDTH from lowerBezelFrame's x */
lowerBezelFrame.origin.x -= HALF_TAB_WIDTH;
}
/* Add a TAB_IMAGE_WIDTH to textFrame's x */
textFrame.origin.x += TAB_IMAGE_WIDTH;
/* Subtract a TAB_IMAGE_WIDTH plus HALF_TAB_WIDTH minus 1.0 from
textFrame's width */
textFrame.size.width -= TAB_IMAGE_WIDTH + HALF_TAB_WIDTH - 1.0;
}
else
{
/* Subtract a HALF_TAB_WIDTH from leftImageOrigin's x */
leftImageOrigin.x -= HALF_TAB_WIDTH;
/* If the cell to left of us is selected */
if ([[controlCellList objectAt:ourIndex-1] isSelected])
{
/* Composite tabBeginImage to leftImageOrigin */
[tabBeginImage composite:NX_SOVER toPoint:&leftImageOrigin];
/* Composite tabEndSelectedImage to leftImageOrigin */
[tabEndSelectedImage composite:NX_SOVER toPoint:&leftImageOrigin];
}
else if ([self isSelected])
{
/* Otherwise, if we are selected */
/* Composite tabEndImage to leftImageOrigin */
[tabEndImage composite:NX_SOVER toPoint:&leftImageOrigin];
/* Composite tabBeginSelectedImage to leftImageOrigin */
[tabBeginSelectedImage composite:NX_SOVER
toPoint:&leftImageOrigin];
}
else
{
/* Composite tabBeginImage to leftImageOrigin */
[tabBeginImage composite:NX_SOVER toPoint:&leftImageOrigin];
/* Composite tabEndImage to leftImageOrigin */
[tabEndImage composite:NX_SOVER toPoint:&leftImageOrigin];
/* Subtract a HALF_TAB_WIDTH from lowerBezelFrame's x */
lowerBezelFrame.origin.x -= TAB_IMAGE_WIDTH;
/* Add 1.0 to lowerBezelFrame's width */
lowerBezelFrame.size.width += 1.0;
}
/* Add a HALF_TAB_WIDTH to textFrame's x */
textFrame.origin.x += HALF_TAB_WIDTH;
/* Subtract a TAB_IMAGE_WIDTH minus 1.0 from textFrame's width */
textFrame.size.width -= TAB_IMAGE_WIDTH - 1.0;
}
/* If ourIndex is less than controlCellList's count minus 1 (we are not
the last cell) */
if (ourIndex < [controlCellList count]-1)
{
/* Draw the cell to the right of us */
[controlView drawCell:[controlCellList objectAt:ourIndex+1]];
}
else
{
/* Set up the rightImageOrigin */
rightImageOrigin.x = NX_X(cellFrame) + NX_WIDTH(cellFrame)
- TAB_IMAGE_WIDTH;
rightImageOrigin.y = NX_Y(cellFrame) + NX_HEIGHT(cellFrame);
/* If we are selected */
if ([self isSelected])
{
/* Composite tabEndSelectedImage to rightImageOrigin */
[tabEndSelectedImage composite:NX_SOVER
toPoint:&rightImageOrigin];
}
else
{
/* Composite tabEndImage to rightImageOrigin */
[tabEndImage composite:NX_SOVER toPoint:&rightImageOrigin];
}
/* Subtract a TAB_IMAGE_WIDTH from textFrame's width */
textFrame.size.width -= HALF_TAB_WIDTH;
/* Add a HALF_TAB_WIDTH to lowerBezelFrame's width */
lowerBezelFrame.size.width += HALF_TAB_WIDTH;
}
/* Erase the cell */
/* If we are selected */
if ([self isSelected])
{
/* Set our drawing color to NX_LTGRAY */
PSsetgray(NX_LTGRAY);
}
else
{
PSsetgray(.5);
}
/* Fill in textFrame */
NXRectFill(&textFrame);
/* Now draw the upper bezel */
/* Set our drawing color to NX_LTGRAY */
PSsetgray(NX_LTGRAY);
/* Set textFrame's height to 1.0 */
textFrame.size.height = 1.0;
/* Fill in textFrame */
NXRectFill(&textFrame);
/* Now draw the text */
/* Set our drawing color to NX_BLACK */
PSsetgray(NX_BLACK);
/* Draw the cell's contents */
PSmoveto(NX_X(&textFrame),NX_Y(&textFrame)+lineHeight-descender+2.0);
PSshow(contents);
/* If we are not selected */
if (![self isSelected])
{
/* Draw the lower bezel */
/* Set our drawing color to NX_WHITE */
PSsetgray(NX_WHITE);
/* Fill in lowerBezelFrame */
NXRectFill(&lowerBezelFrame);
}
return self;
}
/* Other instance methods */
- finishInitializing
{
/* Get the "tabBegin" image */
if (!tabBeginImage)
{
tabBeginImage = [NXImage findImageNamed:"TabBegin"];
}
/* Get the "tabEnd" image */
if (!tabEndImage)
{
tabEndImage = [NXImage findImageNamed:"TabEnd"];
}
/* Get the "tabBeginSelected" image */
if (!tabBeginSelectedImage)
{
tabBeginSelectedImage = [NXImage findImageNamed:"TabBeginSelected"];
}
/* Get the "tabEndSelected" image */
if (!tabEndSelectedImage)
{
tabEndSelectedImage = [NXImage findImageNamed:"TabEndSelected"];
}
/* All text displayed will be in Helvetica, 12 point */
[self setFont:[Font newFont:"Helvetica" size:12.0]];
return self;
}
- (BOOL)isSelected
{
/* Return YES if either one of these flags are on */
return (cFlags1.state || cFlags1.highlighted);
}
@endThese are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.