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// -------------------------------------------------------------------------------------
// BooleanFormatter.h
// This software is without warranty of any kind. Use at your own risk.
// -------------------------------------------------------------------------------------
#import <objc/objc.h>
#import <appkit/appkit.h>
#import <mach/mach.h>
#import <dbkit/dbkit.h>
#import "BoolFormatter.h"
// -------------------------------------------------------------------------------------
// NXRect abbreviations
#define X origin.x
#define Y origin.y
#define W size.width
#define H size.height
// -------------------------------------------------------------------------------------
// drawCell image flags
#define hideIMAGEMASK 1
#define hideAltIMAGEMASK 2
#define hideIMAGE ([drawCell tag] & hideIMAGEMASK)
#define hideAltIMAGE ([drawCell tag] & hideAltIMAGEMASK)
#define setHideIMAGE(X) [drawCell setTag:(hideAltIMAGE | ((X)? 0 : hideIMAGEMASK))];
#define setHideAltIMAGE(X) [drawCell setTag:(hideIMAGE | ((X)? 0 : hideAltIMAGEMASK))];
// -------------------------------------------------------------------------------------
@implementation BoolFormatter
// -------------------------------------------------------------------------------------
// initialization
/* init */
- init
{
/* init */
[super init];
selectionMode = NX_HIGHLIGHTMODE;
newValue = [[DBValue allocFromZone:[self zone]] init];
/* drawing cell */
drawCell = [[ButtonCell allocFromZone:[self zone]] initIconCell:""];
[drawCell setBordered:NO];
[drawCell setIconPosition:NX_ICONONLY];
[drawCell setType:NX_TOGGLE];
[drawCell setIcon:"NXswitch"];
[drawCell setAltIcon:"NXswitchH"];
[drawCell setTag:0];
return self;
}
/* free */
- free
{
[newValue free];
[drawCell free];
return[super free];
}
// -------------------------------------------------------------------------------------
// set attributes
/* set mode */
- setMode:(int)newMode
{
selectionMode = newMode;
return self;
}
/* return mode */
- (int)mode
{
return selectionMode;
}
// -------------------------------------------------------------------------------------
// images
/* set unselected image */
- setImage:anImage
{
setHideIMAGE(anImage);
return [drawCell setImage:anImage];
}
/* return unselected image */
- image
{
return hideIMAGE? (id)nil : [drawCell image];
}
/* set unselected image */
- setIcon:(const char*)anIcon
{
setHideIMAGE(anIcon && *anIcon);
return [drawCell setIcon:anIcon];
}
/* return unselected image */
- (const char*)icon
{
return hideIMAGE? (char*)nil : [drawCell icon];
}
/* set selected image */
- setAltImage:anImage
{
setHideAltIMAGE(anImage);
return [drawCell setAltImage:anImage];
}
/* return selected image */
- altImage
{
return hideAltIMAGE? (id)nil : [drawCell altImage];
}
/* set unselected image */
- setAltIcon:(const char*)anIcon
{
setHideAltIMAGE(anIcon && *anIcon);
return [drawCell setAltIcon:anIcon];
}
/* return unselected image */
- (const char*)altIcon
{
return hideAltIMAGE? (char*)nil : [drawCell altIcon];
}
// -------------------------------------------------------------------------------------
// drawing
/* draw DBTableView field cell */
- drawFieldAt:(u_int)row :(u_int)col inside:(NXRect*)frame inView:view
withAttributes:(id <DBTableVectors>)ra :(id <DBTableVectors>)ca
usePositions:(BOOL)ur :(BOOL)uc;
{
BOOL boolState;
/* cache value and set state */
[self getValueAt:row:col withAttributes:ra:ca usePositions:ur:uc];
boolState = ([value isNull] || (*[value stringValue] == 'N'))? NO : YES;
[drawCell setState:boolState];
/* draw image (if there is an image to draw) */
if (!((boolState && hideAltIMAGE) || (!boolState && hideIMAGE))) {
[drawCell setAlignment:[(([ra formatter]==self)?ra:ca) contentAlignment]];
[drawCell drawInside:frame inView:[NXApp focusView]];
}
return self;
}
// -------------------------------------------------------------------------------------
// event monitoring
/* grab mouse-down to check for toggle value */
- mouseDown:(NXEvent*)e at:(int)row:(int)col inside:(NXRect*)frame inView:(View*)view
withAttributes:(id <DBTableVectors>)ra:(id <DBTableVectors>)ca
usePositions:(BOOL)ur:(BOOL)uc
{
id lv, vw;
/* ignore if not a double click */
if (e->data.mouse.click < 2) return (id)nil;
if (selectionMode == NX_RADIOMODE) { // radio mode (not fully tested)
int ndx;
/* clear all other row values */
[newValue setStringValue:"NO"];
for (ndx = 0; ndx < [dataSource rowCount]; ndx++) {
if (ndx == row) continue;
[self getValueAt:ndx:col withAttributes:ra:ca usePositions:ur:uc];
if ((*[value stringValue] != 'N') &&
(![self setValueAt:ndx:col withAttributes:ra:ca usePositions:ur:uc]))
return (id)nil;
}
/* get requested row value and re-set it to true */
[self getValueAt:row:col withAttributes:ra:ca usePositions:ur:uc];
if ([value isNull] || (*[value stringValue] == 'N')) {
[newValue setStringValue:"YES"];
[self setValueAt:row:col withAttributes:ra:ca usePositions:ur:uc];
}
} else { // list mode
/* toggle value */
[self getValueAt:row:col withAttributes:ra:ca usePositions:ur:uc];
if ([value isNull] || (*[value stringValue] == 'N')) [newValue setStringValue:"YES"];
else [newValue setStringValue:"NO"];
[self setValueAt:row:col withAttributes:ra:ca usePositions:ur:uc];
}
/* redraw field (just tell DBTableView, if possible) */
for (lv = (id)nil, vw = view; vw && (lv != vw); lv = vw, vw = [vw superview]) {
if ([vw isKindOf:[DBTableView class]]) {
u_int r = ur? row : (u_int)[ra identifier];
[vw rowsChangedFrom:r to:r];
return self;
}
}
/* slow redraw */
[self drawFieldAt:row:col inside:frame inView:view
withAttributes:ra:ca usePositions:ur:uc];
[view display];
[[view window] flushWindow];
return self;
}
// -------------------------------------------------------------------------------------
// changing values
/* set field value */
- setValueAt:(int)row :(int)col
withAttributes:(id <DBTableVectors>)ra :(id <DBTableVectors>)ca
usePositions:(BOOL)ur :(BOOL)uc
{
u_int c = uc? col : (u_int)[ca identifier];
u_int r = ur? row : (u_int)[ra identifier];
/* rows only */
if (ur && !uc) {
if ([delegate respondsTo:@selector(formatterWillChangeValueFor:at:to:sender:)] &&
![delegate formatterWillChangeValueFor:(id)c at:r to:newValue sender:self])
return (id)nil;
[dataSource setValueFor:(id)c at:r from:newValue];
if ([delegate respondsTo:@selector(formatterDidChangeValueFor:at:to:sender:)])
[delegate formatterDidChangeValueFor:(id)c at:r to:newValue sender:self];
return self;
}
/* columns only */
if (!ur && uc) {
if ([delegate respondsTo:@selector(formatterWillChangeValueFor:at:to:sender:)] &&
![delegate formatterWillChangeValueFor:(id)r at:c to:newValue sender:self])
return (id)nil;
[dataSource setValueFor:(id)r at:c from:newValue];
if ([delegate respondsTo:@selector(formatterDidChangeValueFor:at:to:sender:)])
[delegate formatterDidChangeValueFor:(id)r at:c to:newValue sender:self];
return self;
}
/* default */
if (![delegate formatterWillChangeValueFor:(id)r:(id)c to:newValue sender:self])
return (id)nil;
[dataSource setValueFor:(id)r:(id)c from:newValue];
if ([delegate respondsTo:@selector(formatterDidChangeValueFor::to:sender:)])
[delegate formatterDidChangeValueFor:(id)r:(id)c to:newValue sender:self];
return self;
}
// -------------------------------------------------------------------------------------
// archiving
/* archive object to stream */
- write:(NXTypedStream*) stream
{
[super write:stream];
return self;
}
/* read object from stream */
- read:(NXTypedStream*) stream
{
[super read:stream];
return self;
}
@end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.