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libs-gui/Source/NSTabView.m
Adrian Robert 409e8d2388 NSTabView fixes to bring in line w/os x behavior for display update and zero-tabs case; NSColorList capability added to read text color files, and corrected interp of arg to -initWithNameFromFile 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@20334 72102866-910b-0410-8b05-ffd578937521
2004-11-10 04:36:23 +00:00

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/** <title>NSTabView</title>
<abstract>The tabular view class</abstract>
Copyright (C) 1999,2000 Free Software Foundation, Inc.
Author: Michael Hanni <mhanni@sprintmail.com>
Date: 1999
This file is part of the GNUstep GUI Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; see the file COPYING.LIB.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "AppKit/NSColor.h"
#include "AppKit/NSFont.h"
#include "AppKit/NSGraphics.h"
#include "AppKit/NSImage.h"
#include "AppKit/NSForm.h"
#include "AppKit/NSMatrix.h"
#include "AppKit/NSWindow.h"
#include "AppKit/NSTabView.h"
#include "AppKit/NSTabViewItem.h"
#include "AppKit/PSOperators.h"
#include "GNUstepGUI/GSDrawFunctions.h"
@implementation NSTabView
- (id) initWithFrame: (NSRect)rect
{
[super initWithFrame: rect];
// setup variables
ASSIGN (_items, [NSMutableArray array]);
ASSIGN (_font, [NSFont systemFontOfSize: 0]);
_selected = nil;
return self;
}
- (void) dealloc
{
RELEASE(_items);
RELEASE(_font);
[super dealloc];
}
// tab management.
- (void) addTabViewItem: (NSTabViewItem*)tabViewItem
{
[self insertTabViewItem: tabViewItem atIndex: [_items count]];
}
- (void) insertTabViewItem: (NSTabViewItem*)tabViewItem
atIndex: (int)index
{
[tabViewItem _setTabView: self];
[_items insertObject: tabViewItem atIndex: index];
if ([_delegate respondsToSelector:
@selector(tabViewDidChangeNumberOfTabViewItems:)])
{
[_delegate tabViewDidChangeNumberOfTabViewItems: self];
}
/* TODO (Optimize) - just mark the tabs rect as needing redisplay */
[self setNeedsDisplay: YES];
}
- (void) removeTabViewItem: (NSTabViewItem*)tabViewItem
{
unsigned i = [_items indexOfObject: tabViewItem];
if (i == NSNotFound)
return;
if ([tabViewItem isEqual: _selected])
{
[[_selected view] removeFromSuperview];
_selected = nil;
}
[_items removeObjectAtIndex: i];
if ([_delegate respondsToSelector:
@selector(tabViewDidChangeNumberOfTabViewItems:)])
{
[_delegate tabViewDidChangeNumberOfTabViewItems: self];
}
/* TODO (Optimize) - just mark the tabs rect as needing redisplay unless
removed tab was selected */
[self setNeedsDisplay: YES];
}
- (int) indexOfTabViewItem: (NSTabViewItem*)tabViewItem
{
return [_items indexOfObject: tabViewItem];
}
- (int) indexOfTabViewItemWithIdentifier: (id)identifier
{
unsigned howMany = [_items count];
unsigned i;
for (i = 0; i < howMany; i++)
{
id anItem = [_items objectAtIndex: i];
if ([[anItem identifier] isEqual: identifier])
return i;
}
return NSNotFound;
}
- (int) numberOfTabViewItems
{
return [_items count];
}
- (NSTabViewItem*) tabViewItemAtIndex: (int)index
{
return [_items objectAtIndex: index];
}
- (NSArray*) tabViewItems
{
return (NSArray*)_items;
}
- (void) selectFirstTabViewItem: (id)sender
{
[self selectTabViewItemAtIndex: 0];
}
- (void) selectLastTabViewItem: (id)sender
{
[self selectTabViewItem: [_items lastObject]];
}
- (void) selectNextTabViewItem: (id)sender
{
if ((unsigned)(_selected_item + 1) < [_items count])
[self selectTabViewItemAtIndex: _selected_item+1];
}
- (void) selectPreviousTabViewItem: (id)sender
{
if (_selected_item > 0)
[self selectTabViewItemAtIndex: _selected_item-1];
}
- (NSTabViewItem*) selectedTabViewItem
{
if (_selected_item == NSNotFound || [_items count] == 0)
return nil;
return [_items objectAtIndex: _selected_item];
}
- (void) selectTabViewItem: (NSTabViewItem*)tabViewItem
{
BOOL canSelect = YES;
if ([_delegate respondsToSelector:
@selector(tabView: shouldSelectTabViewItem:)])
{
canSelect = [_delegate tabView: self
shouldSelectTabViewItem: tabViewItem];
}
if (canSelect)
{
NSView *selectedView;
if (_selected != nil)
{
[_selected _setTabState: NSBackgroundTab];
/* NB: If [_selected view] is nil this does nothing, which
is fine. */
[[_selected view] removeFromSuperview];
}
_selected = tabViewItem;
if ([_delegate respondsToSelector:
@selector(tabView: willSelectTabViewItem:)])
{
[_delegate tabView: self willSelectTabViewItem: _selected];
}
_selected_item = [_items indexOfObject: _selected];
[_selected _setTabState: NSSelectedTab];
selectedView = [_selected view];
if (selectedView != nil)
{
[self addSubview: selectedView];
[selectedView setFrame: [self contentRect]];
[_window makeFirstResponder: [_selected initialFirstResponder]];
}
/* Will need to redraw tabs and content area. */
[self setNeedsDisplay: YES];
if ([_delegate respondsToSelector:
@selector(tabView: didSelectTabViewItem:)])
{
[_delegate tabView: self didSelectTabViewItem: _selected];
}
}
}
- (void) selectTabViewItemAtIndex: (int)index
{
if (index < 0 || index >= [_items count])
[self selectTabViewItem: nil];
else
[self selectTabViewItem: [_items objectAtIndex: index]];
}
- (void) selectTabViewItemWithIdentifier:(id)identifier
{
int index = [self indexOfTabViewItemWithIdentifier: identifier];
[self selectTabViewItemAtIndex: index];
}
- (void) takeSelectedTabViewItemFromSender: (id)sender
{
int index = -1;
if ([sender respondsToSelector: @selector(indexOfSelectedItem)] == YES)
{
index = [sender indexOfSelectedItem];
}
else if ([sender isKindOfClass: [NSMatrix class]] == YES)
{
int cols = [sender numberOfColumns];
int row = [sender selectedRow];
int col = [sender selectedColumn];
if (row >= 0 && col >= 0)
{
index = row * cols + col;
}
}
[self selectTabViewItemAtIndex: index];
}
- (void) setFont: (NSFont*)font
{
ASSIGN(_font, font);
}
- (NSFont*) font
{
return _font;
}
- (void) setTabViewType: (NSTabViewType)tabViewType
{
_type = tabViewType;
}
- (NSTabViewType) tabViewType
{
return _type;
}
- (void) setDrawsBackground: (BOOL)flag
{
_draws_background = flag;
}
- (BOOL) drawsBackground
{
return _draws_background;
}
- (void) setAllowsTruncatedLabels: (BOOL)allowTruncatedLabels
{
_truncated_label = allowTruncatedLabels;
}
- (BOOL) allowsTruncatedLabels
{
return _truncated_label;
}
- (void) setDelegate: (id)anObject
{
_delegate = anObject;
}
- (id) delegate
{
return _delegate;
}
// content and size
- (NSSize) minimumSize
{
return NSZeroSize;
}
- (NSRect) contentRect
{
NSRect cRect = _bounds;
if (_type == NSTopTabsBezelBorder)
{
cRect.origin.y += 1;
cRect.origin.x += 0.5;
cRect.size.width -= 2;
cRect.size.height -= 18.5;
}
if (_type == NSNoTabsBezelBorder)
{
cRect.origin.y += 1;
cRect.origin.x += 0.5;
cRect.size.width -= 2;
cRect.size.height -= 2;
}
if (_type == NSBottomTabsBezelBorder)
{
cRect.size.height -= 8;
cRect.origin.y = 8;
}
return cRect;
}
// Drawing.
- (void) drawRect: (NSRect)rect
{
NSGraphicsContext *ctxt = GSCurrentContext();
int howMany = [_items count];
int i;
NSRect previousRect;
int previousState = 0;
NSRect aRect = _bounds;
DPSgsave(ctxt);
switch (_type)
{
default:
case NSTopTabsBezelBorder:
aRect.size.height -= 16;
[GSDrawFunctions drawButton: aRect : NSZeroRect];
break;
case NSBottomTabsBezelBorder:
aRect.size.height -= 16;
aRect.origin.y += 16;
[GSDrawFunctions drawButton: aRect : rect];
aRect.origin.y -= 16;
break;
case NSNoTabsBezelBorder:
[GSDrawFunctions drawButton: aRect : rect];
break;
case NSNoTabsLineBorder:
[[NSColor controlDarkShadowColor] set];
NSFrameRect(aRect);
break;
case NSNoTabsNoBorder:
break;
}
if (!_selected && howMany > 0)
[self selectFirstTabViewItem: nil];
if (_type == NSNoTabsBezelBorder || _type == NSNoTabsLineBorder)
{
DPSgrestore(ctxt);
return;
}
if (_type == NSBottomTabsBezelBorder)
{
for (i = 0; i < howMany; i++)
{
// where da tab be at?
NSSize s;
NSRect r;
NSPoint iP;
NSTabViewItem *anItem = [_items objectAtIndex: i];
NSTabState itemState;
itemState = [anItem tabState];
s = [anItem sizeOfLabel: NO];
if (i == 0)
{
int iFlex = 0;
iP.x = aRect.origin.x;
iP.y = aRect.origin.y;
if (itemState == NSSelectedTab)
{
iP.y += 1;
[[NSImage imageNamed: @"common_TabDownSelectedLeft.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
iP.y -= 1;
iFlex = 1;
}
else if (itemState == NSBackgroundTab)
{
iP.y += 1;
[[NSImage imageNamed: @"common_TabDownUnSelectedLeft.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
iP.y -= 1;
}
else
NSLog(@"Not finished yet. Luff ya.\n");
r.origin.x = aRect.origin.x + 13;
r.origin.y = aRect.origin.y + 2;
r.size.width = s.width;
r.size.height = 15 + iFlex;
DPSsetlinewidth(ctxt,1);
DPSsetgray(ctxt, NSWhite);
DPSmoveto(ctxt, r.origin.x, r.origin.y-1);
DPSrlineto(ctxt, r.size.width, 0);
DPSstroke(ctxt);
[anItem drawLabel: NO inRect: r];
previousRect = r;
previousState = itemState;
}
else
{
int iFlex = 0;
iP.x = previousRect.origin.x + previousRect.size.width;
iP.y = aRect.origin.y;
if (itemState == NSSelectedTab)
{
iP.y += 1;
iFlex = 1;
[[NSImage imageNamed:
@"common_TabDownUnSelectedToSelectedJunction.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
iP.y -= 1;
}
else if (itemState == NSBackgroundTab)
{
if (previousState == NSSelectedTab)
{
iP.y += 1;
[[NSImage imageNamed:
@"common_TabDownSelectedToUnSelectedJunction.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
iP.y -= 1;
iFlex = -1;
}
else
{
// iP.y += 1;
[[NSImage imageNamed:
@"common_TabDownUnSelectedJunction.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
//iP.y -= 1;
iFlex = -1;
}
}
else
NSLog(@"Not finished yet. Luff ya.\n");
r.origin.x = iP.x + 13;
r.origin.y = aRect.origin.y + 2;
r.size.width = s.width;
r.size.height = 15 + iFlex; // was 15
iFlex = 0;
DPSsetlinewidth(ctxt,1);
DPSsetgray(ctxt, NSWhite);
DPSmoveto(ctxt, r.origin.x, r.origin.y - 1);
DPSrlineto(ctxt, r.size.width, 0);
DPSstroke(ctxt);
[anItem drawLabel: NO inRect: r];
previousRect = r;
previousState = itemState;
}
if (i == howMany-1)
{
iP.x += s.width + 13;
if ([anItem tabState] == NSSelectedTab)
[[NSImage imageNamed: @"common_TabDownSelectedRight.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
else if ([anItem tabState] == NSBackgroundTab)
{
// iP.y += 1;
[[NSImage imageNamed: @"common_TabDownUnSelectedRight.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
// iP.y -= 1;
}
else
NSLog(@"Not finished yet. Luff ya.\n");
}
}
}
else if (_type == NSTopTabsBezelBorder)
{
for (i = 0; i < howMany; i++)
{
// where da tab be at?
NSSize s;
NSRect r;
NSPoint iP;
NSTabViewItem *anItem = [_items objectAtIndex: i];
NSTabState itemState;
itemState = [anItem tabState];
s = [anItem sizeOfLabel: NO];
if (i == 0)
{
iP.x = aRect.origin.x;
iP.y = aRect.size.height;
if (itemState == NSSelectedTab)
{
iP.y -= 1;
[[NSImage imageNamed: @"common_TabSelectedLeft.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
}
else if (itemState == NSBackgroundTab)
[[NSImage imageNamed: @"common_TabUnSelectedLeft.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
else
NSLog(@"Not finished yet. Luff ya.\n");
r.origin.x = aRect.origin.x + 13;
r.origin.y = aRect.size.height;
r.size.width = s.width;
r.size.height = 15;
DPSsetlinewidth(ctxt,1);
DPSsetgray(ctxt, NSWhite);
DPSmoveto(ctxt, r.origin.x, r.origin.y+16);
DPSrlineto(ctxt, r.size.width, 0);
DPSstroke(ctxt);
[anItem drawLabel: NO inRect: r];
previousRect = r;
previousState = itemState;
}
else
{
iP.x = previousRect.origin.x + previousRect.size.width;
iP.y = aRect.size.height;
if (itemState == NSSelectedTab)
{
iP.y -= 1;
[[NSImage imageNamed:
@"common_TabUnSelectToSelectedJunction.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
}
else if (itemState == NSBackgroundTab)
{
if (previousState == NSSelectedTab)
{
iP.y -= 1;
[[NSImage imageNamed:
@"common_TabSelectedToUnSelectedJunction.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
iP.y += 1;
}
else
{
[[NSImage imageNamed:
@"common_TabUnSelectedJunction.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
}
}
else
NSLog(@"Not finished yet. Luff ya.\n");
r.origin.x = iP.x + 13;
r.origin.y = aRect.size.height;
r.size.width = s.width;
r.size.height = 15;
DPSsetlinewidth(ctxt,1);
DPSsetgray(ctxt, NSWhite);
DPSmoveto(ctxt, r.origin.x, r.origin.y+16);
DPSrlineto(ctxt, r.size.width, 0);
DPSstroke(ctxt);
[anItem drawLabel: NO inRect: r];
previousRect = r;
previousState = itemState;
}
if (i == howMany-1)
{
iP.x += s.width + 13;
if ([anItem tabState] == NSSelectedTab)
[[NSImage imageNamed: @"common_TabSelectedRight.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
else if ([anItem tabState] == NSBackgroundTab)
[[NSImage imageNamed: @"common_TabUnSelectedRight.tiff"]
compositeToPoint: iP operation: NSCompositeSourceOver];
else
NSLog(@"Not finished yet. Luff ya.\n");
}
}
}
DPSgrestore(ctxt);
}
- (BOOL) isOpaque
{
return NO;
}
// Event handling.
- (NSTabViewItem*) tabViewItemAtPoint: (NSPoint)point
{
int howMany = [_items count];
int i;
point = [self convertPoint: point fromView: nil];
for (i = 0; i < howMany; i++)
{
NSTabViewItem *anItem = [_items objectAtIndex: i];
if(NSPointInRect(point,[anItem _tabRect]))
return anItem;
}
return nil;
}
- (void) mouseDown: (NSEvent *)theEvent
{
NSPoint location = [theEvent locationInWindow];
NSTabViewItem *anItem = [self tabViewItemAtPoint: location];
if (anItem != nil && ![anItem isEqual: _selected])
{
[self selectTabViewItem: anItem];
}
}
- (NSControlSize) controlSize
{
// FIXME
return NSRegularControlSize;
}
/**
* Not implemented.
*/
- (void) setControlSize: (NSControlSize)controlSize
{
// FIXME
}
- (NSControlTint) controlTint
{
// FIXME
return NSDefaultControlTint;
}
/**
* Not implemented.
*/
- (void) setControlTint: (NSControlTint)controlTint
{
// FIXME
}
// Coding.
- (void) encodeWithCoder: (NSCoder*)aCoder
{
[super encodeWithCoder: aCoder];
[aCoder encodeObject: _items];
[aCoder encodeObject: _font];
[aCoder encodeValueOfObjCType: @encode(NSTabViewType) at: &_type];
[aCoder encodeValueOfObjCType: @encode(BOOL) at: &_draws_background];
[aCoder encodeValueOfObjCType: @encode(BOOL) at: &_truncated_label];
[aCoder encodeConditionalObject: _delegate];
[aCoder encodeValueOfObjCType: "i" at: &_selected_item];
}
- (id) initWithCoder: (NSCoder*)aDecoder
{
self = [super initWithCoder: aDecoder];
if ([aDecoder allowsKeyedCoding])
{
if ([aDecoder containsValueForKey: @"NSAllowTruncatedLabels"])
{
[self setAllowsTruncatedLabels: [aDecoder decodeBoolForKey:
@"NSAllowTruncatedLabels"]];
}
if ([aDecoder containsValueForKey: @"NSDrawsBackground"])
{
[self setDrawsBackground: [aDecoder decodeBoolForKey:
@"NSDrawsBackground"]];
}
if ([aDecoder containsValueForKey: @"NSFont"])
{
[self setFont: [aDecoder decodeObjectForKey: @"NSFont"]];
}
if ([aDecoder containsValueForKey: @"NSTabViewItems"])
{
NSArray *items = [aDecoder decodeObjectForKey: @"NSTabViewItems"];
NSEnumerator *enumerator = [items objectEnumerator];
NSTabViewItem *item;
while ((item = [enumerator nextObject]) != nil)
{
[self addTabViewItem: item];
}
}
if ([aDecoder containsValueForKey: @"NSSelectedTabViewItem"])
{
[self selectTabViewItem: [aDecoder decodeObjectForKey:
@"NSSelectedTabViewItem"]];
}
if ([aDecoder containsValueForKey: @"NSTvFlags"])
{
//int flags = [aDecoder decodeObjectForKey: @"NSTvFlags"]];
}
}
else
{
[aDecoder decodeValueOfObjCType: @encode(id) at: &_items];
[aDecoder decodeValueOfObjCType: @encode(id) at: &_font];
[aDecoder decodeValueOfObjCType: @encode(NSTabViewType) at: &_type];
[aDecoder decodeValueOfObjCType: @encode(BOOL) at: &_draws_background];
[aDecoder decodeValueOfObjCType: @encode(BOOL) at: &_truncated_label];
_delegate = [aDecoder decodeObject];
[aDecoder decodeValueOfObjCType: "i" at: &_selected_item];
_selected = [_items objectAtIndex: _selected_item];
}
return self;
}
@end
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