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/* STSwapBoxManager.m
created by Robert Vasvari - July 1994
This class is an abstract superclass that is
supposed to make it easier to add or modify
multi screen preferences panels.
The steps to take to add a new swapBox:
1: make a new box in IB that contains the matrices,
textfields etc, and fit it into the mid-section
of the panel. At runtime the subviews of the panel
will be parsed. All boxes that have a title in the form:
"screen box %d" will be hooked up to the popup cell with
tag %d.
2: set the necessary pointers to the box and its contents.
3: subclass the following methods:
- loadDataFor:(int)boxTag;
- dataChanged:sender;
- set:sender;
Hopefully it will just work...
*/
#import "STSwapBoxManager.h"
#import "STAppController.h"
#import "STUtil.h"
@implementation STSwapBoxManager
- init
{ [super init];
currentBoxTag=0;
needsDisplay=YES;
return self;
}
- awakeFromNib
{
int t, i=0, count=0;
id view=nil, cell=nil, matrix=[[mainPopup target] itemList];
id list;
char *p;
maxIndex= -1;
list=[[panel contentView] subviews];
count=[list count];
if(!list) return self;
for(i=0;i<count;i++)
{ p=NULL;
t=0;
view=[list objectAt:i];
if([view isKindOf:[Box class]])
{ if(!(p=(char *)[view title])) continue;
if(strncmp(p,"screen box ",11)) continue;
sscanf(p,"screen box %d",&t);
if(!(cell=[matrix findCellWithTag:t]))
{ printf(
"bad boxtag in SwapBoxManager setupBoxes:%d\n",t);
continue;
}
[cell setTarget:self];
[cell setAction:@selector(changeBox:)];
boxes[t]=view;
[view setTitlePosition:NX_NOTITLE];
if(t>maxIndex) maxIndex=t;
t++;
}
}
i=0;
while(boxes[i])
{ [boxes[i++] removeFromSuperview];
}
return self;
}
- setNeedsDisplay:(BOOL)flag
{ needsDisplay=flag;
return self;
}
- (BOOL)needsDisplay
{ return needsDisplay;
}
- (int)currentBoxTag
{ return currentBoxTag;
}
- loadDataFor:(int)boxTag
{
/* general purpose method to display a box specified by the tag
in the preferences panel
*/
/* here should be a switch statement to load in all
data for a particular screen
*/
return self;
}
- dataChanged:sender
{
/* this method figures out if there is any change in the currently
selected box and enables/disables the set/revert buttons */
/* here should be a switch statement to figure out
for a particular screen if there was a change
*/
return self;
}
- textDidGetKeys:textObj isEmpty:(BOOL)flag
{ [self dataChanged:self];
return self;
}
- set:sender
{
/* here should be a switch statement to
save all the changes
*/
return self;
}
- changeBox:sender
{
if([panel isDocEdited])
{ switch(NXRunAlertPanel("Alert",
"Recent changes that haven't been saved will be lost!",
"Save Changes","Close Anyway","Cancel"))
{ case NX_ALERTDEFAULT: [self set:setButton]; break;
case NX_ALERTALTERNATE: break;
case NX_ALERTOTHER: return nil;
default: return nil;
}
}
[panel disableFlushWindow];
[self getPanelWithScreen:[[sender selectedCell] tag]];
[panel reenableFlushWindow];
[panel flushWindow];
return self;
}
- getPanelWithScreen:(int)index
{
[[[mainPopup target] itemList] selectCellWithTag:index];
[mainPopup setTitle:
[[[[mainPopup target] itemList] selectedCell] title]];
[self displayBox:index];
[revertButton setEnabled:NO];
[setButton setEnabled:NO];
[panel setDocEdited:NO];
[panel display];
[panel makeKeyAndOrderFront:nil];
return self;
}
- displayBox:(int)boxTag
{
if(!boxes[boxTag])
{ fprintf(stderr,"displayBox: bad boxTag:%d\n",boxTag);
return self;
}
/* remove the old box */
if([boxes[currentBoxTag] superview])
[boxes[currentBoxTag] removeFromSuperview];
currentBoxTag=boxTag;
/* add the new box :
if the noSelectionBox variable is set, and there is no currentDoc,
use it
*/
if(noSelectionBox)
{ if([[NXApp delegate] currentDoc])
{ if([noSelectionBox superview])
[noSelectionBox removeFromSuperview];
if(![boxes[currentBoxTag] superview])
[[panel contentView] addSubview:boxes[currentBoxTag]];
}
else
{ if(![noSelectionBox superview])
[[panel contentView] addSubview:noSelectionBox];
}
}
else
{ if(![boxes[currentBoxTag] superview])
[[panel contentView] addSubview:boxes[currentBoxTag]];
}
[self loadDataFor:boxTag];
return self;
}
- revert:sender
{
[panel disableDisplay];
[panel disableFlushWindow];
[self loadDataFor:[[[[mainPopup target] itemList] selectedCell] tag]];
if([revertButton isEnabled]) [revertButton setEnabled:NO];
if([setButton isEnabled]) [setButton setEnabled:NO];
[panel setDocEdited:NO];
[panel reenableDisplay];
[panel display];
[panel reenableFlushWindow];
[panel flushWindow];
return self;
}
- windowWillClose:sender
{ if([panel isDocEdited])
{ switch(NXRunAlertPanel("Alert",
"Recent changes that haven't been saved will be lost!",
"Save Changes","Close Anyway","Cancel"))
{ case NX_ALERTDEFAULT: [self set:setButton]; break;
case NX_ALERTALTERNATE: break;
case NX_ALERTOTHER: return nil;
default: return nil;
}
}
return self;
}
- windowDidUpdate:sender
{
//printf("in Inspector windowDidUpdate\n");
if([panel isVisible]) [self displayBox:currentBoxTag];
return self;
}
- free
{ [[mainPopup target] free]; //a window
[panel free];
return [super free];
}
@end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.