/
PSMTabBarControl.m
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PSMTabBarControl.m
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//
// PSMTabBarControl.m
// PSMTabBarControl
//
// Created by John Pannell on 10/13/05.
// Copyright 2005 Positive Spin Media. All rights reserved.
//
#import "PSMTabBarControl.h"
#import "PSMTabBarCell.h"
#import "PSMOverflowPopUpButton.h"
#import "PSMRolloverButton.h"
#import "PSMTabStyle.h"
#import "PSMMetalTabStyle.h"
#import "PSMMojaveTabStyle.h"
#import "PSMUnifiedTabStyle.h"
#import "PSMYosemiteTabStyle.h"
#import "PSMTabDragAssistant.h"
@interface PSMTabBarControl (Private)
// characteristics
- (float)availableCellWidth;
- (NSRect)genericCellRect;
// constructor/destructor
- (void)initAddedProperties;
- (void)dealloc;
// accessors
- (NSEvent *)lastMouseDownEvent;
- (void)setLastMouseDownEvent:(NSEvent *)event;
// contents
- (void)addTabViewItem:(NSTabViewItem *)item;
- (void)removeTabForCell:(PSMTabBarCell *)cell;
// draw
- (void)update;
// actions
- (void)overflowMenuAction:(id)sender;
- (void)closeTabClick:(id)sender;
- (void)tabClick:(id)sender;
- (void)tabNothing:(id)sender;
- (void)frameDidChange:(NSNotification *)notification;
- (void)windowDidMove:(NSNotification *)aNotification;
- (void)windowStatusDidChange:(NSNotification *)notification;
// NSTabView delegate
- (void)tabView:(NSTabView *)tabView didSelectTabViewItem:(NSTabViewItem *)tabViewItem;
- (BOOL)tabView:(NSTabView *)tabView shouldSelectTabViewItem:(NSTabViewItem *)tabViewItem;
- (void)tabView:(NSTabView *)tabView willSelectTabViewItem:(NSTabViewItem *)tabViewItem;
- (void)tabViewDidChangeNumberOfTabViewItems:(NSTabView *)tabView;
// archiving
- (void)encodeWithCoder:(NSCoder *)aCoder;
- (id)initWithCoder:(NSCoder *)aDecoder;
// convenience
- (id)cellForPoint:(NSPoint)point cellFrame:(NSRectPointer)outFrame;
- (NSUInteger)indexOfCellAtPoint:(NSPoint)point;
- (NSUInteger)indexOfCellAtPoint:(NSPoint)point cellFrame:(NSRectPointer)outFrame;
- (PSMTabBarCell *)lastVisibleTab;
- (int)numberOfVisibleTabs;
@end
@implementation PSMTabBarControl
#pragma mark -
#pragma mark Characteristics
+ (NSBundle *)bundle;
{
static NSBundle *bundle = nil;
if (!bundle) bundle = [NSBundle bundleForClass:[PSMTabBarControl class]];
return bundle;
}
- (float)availableCellWidth
{
float width = [self frame].size.width;
width = width - [style leftMarginForTabBarControl] - [style rightMarginForTabBarControl];
return width;
}
- (NSRect)genericCellRect
{
NSRect aRect=[self frame];
aRect.origin.x = [style leftMarginForTabBarControl];
aRect.origin.y = 0.0;
aRect.size.width = [self availableCellWidth];
aRect.size.height = kPSMTabBarControlHeight;
return aRect;
}
#pragma mark -
#pragma mark Constructor/destructor
- (void)initAddedProperties
{
_cells = [[NSMutableArray alloc] initWithCapacity:10];
// default config
_allowsDragBetweenWindows = YES;
_delegateHandlingDrag = NO;
_canCloseOnlyTab = NO;
_showAddTabButton = NO;
_hideForSingleTab = NO;
_sizeCellsToFit = NO;
_isHidden = NO;
_hideIndicators = NO;
_awakenedFromNib = NO;
_cellMinWidth = 100;
_cellMaxWidth = 280;
_cellOptimumWidth = 130;
style = [[PSMMetalTabStyle alloc] init];
// the overflow button/menu
NSRect overflowButtonRect = NSMakeRect([self frame].size.width - [style rightMarginForTabBarControl] + 1, 0, [style rightMarginForTabBarControl] - 1, [self frame].size.height);
_overflowPopUpButton = [[PSMOverflowPopUpButton alloc] initWithFrame:overflowButtonRect pullsDown:YES];
if(_overflowPopUpButton){
// configure
[_overflowPopUpButton setAutoresizingMask:NSViewNotSizable|NSViewMinXMargin];
}
// new tab button
NSRect addTabButtonRect = NSMakeRect([self frame].size.width - [style rightMarginForTabBarControl] + 1, 3.0, 16.0, 16.0);
_addTabButton = [[PSMRolloverButton alloc] initWithFrame:addTabButtonRect];
if(_addTabButton){
NSImage *newButtonImage = [style addTabButtonImage];
if(newButtonImage)
[_addTabButton setUsualImage:newButtonImage];
newButtonImage = [style addTabButtonPressedImage];
if(newButtonImage)
[_addTabButton setAlternateImage:newButtonImage];
newButtonImage = [style addTabButtonRolloverImage];
if(newButtonImage)
[_addTabButton setRolloverImage:newButtonImage];
[_addTabButton setTitle:@""];
[_addTabButton setImagePosition:NSImageOnly];
[_addTabButton setButtonType:NSMomentaryChangeButton];
[_addTabButton setBordered:NO];
[_addTabButton setBezelStyle:NSShadowlessSquareBezelStyle];
if(_showAddTabButton){
[_addTabButton setHidden:NO];
} else {
[_addTabButton setHidden:YES];
}
[_addTabButton setNeedsDisplay:YES];
}
}
- (id)initWithFrame:(NSRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization
[self initAddedProperties];
[self registerForDraggedTypes:[NSArray arrayWithObjects: @"PSMTabBarControlItemPBType", nil]];
}
[self setTarget:self];
return self;
}
- (void)dealloc
{
[_overflowPopUpButton release];
[_cells release];
[tabView release];
[_addTabButton release];
[partnerView release];
[_lastMouseDownEvent release];
[style release];
[delegate release];
[self unregisterDraggedTypes];
[super dealloc];
}
- (void)awakeFromNib
{
// build cells from existing tab view items
NSArray *existingItems = [tabView tabViewItems];
NSEnumerator *e = [existingItems objectEnumerator];
NSTabViewItem *item;
while(item = [e nextObject]){
if(![[self representedTabViewItems] containsObject:item])
[self addTabViewItem:item];
}
// resize
[self setPostsFrameChangedNotifications:YES];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(frameDidChange:) name:NSViewFrameDidChangeNotification object:self];
// window status
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(windowStatusDidChange:) name:NSWindowDidBecomeKeyNotification object:[self window]];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(windowStatusDidChange:) name:NSWindowDidResignKeyNotification object:[self window]];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(windowDidMove:) name:NSWindowDidMoveNotification object:[self window]];
}
#pragma mark -
#pragma mark Accessors
- (NSMutableArray *)cells
{
return _cells;
}
- (NSEvent *)lastMouseDownEvent
{
return _lastMouseDownEvent;
}
- (void)setLastMouseDownEvent:(NSEvent *)event
{
[event retain];
[_lastMouseDownEvent release];
_lastMouseDownEvent = event;
}
- (id)delegate
{
return delegate;
}
- (void)setDelegate:(id)object
{
[object retain];
[delegate release];
delegate = object;
}
- (NSTabView *)tabView
{
return tabView;
}
- (void)setTabView:(NSTabView *)view
{
[view retain];
[tabView release];
tabView = view;
}
- (id<PSMTabStyle>)psmTabStyle
{
return style;
}
- (NSString *)styleName
{
return [style name];
}
- (void)setStyleNamed:(NSString *)name
{
[style release];
if([name isEqualToString:@"Unified"]){
style = [[PSMUnifiedTabStyle alloc] init];
} else if([name isEqualToString:@"Yosemite"]){
style = [[PSMYosemiteTabStyle alloc] init];
#if HAS_MOJAVE_TAB_STYLE
} else if([name isEqualToString:@"Mojave"]){
style = [[PSMMojaveTabStyle alloc] init];
#endif
} else {
style = [[PSMMetalTabStyle alloc] init];
}
// restyle add tab button
if(_addTabButton){
if ([style respondsToSelector:@selector(styleAddTabButton:)]) {
[style performSelector:@selector(styleAddTabButton:) withObject:_addTabButton];
} else {
NSImage *newButtonImage = [style addTabButtonImage];
if(newButtonImage)
[_addTabButton setUsualImage:newButtonImage];
newButtonImage = [style addTabButtonPressedImage];
if(newButtonImage)
[_addTabButton setAlternateImage:newButtonImage];
newButtonImage = [style addTabButtonRolloverImage];
if(newButtonImage)
[_addTabButton setRolloverImage:newButtonImage];
}
}
[self update];
}
- (BOOL)canCloseOnlyTab
{
return _canCloseOnlyTab;
}
- (void)setCanCloseOnlyTab:(BOOL)value
{
_canCloseOnlyTab = value;
if ([_cells count] == 1) {
[self update];
}
}
- (BOOL)allowsDragBetweenWindows
{
return _allowsDragBetweenWindows;
}
- (void)setAllowsDragBetweenWindows:(BOOL)flag
{
_allowsDragBetweenWindows = flag;
}
- (BOOL)hideForSingleTab
{
return _hideForSingleTab;
}
- (void)setHideForSingleTab:(BOOL)value
{
_hideForSingleTab = value;
[self update];
}
- (BOOL)showAddTabButton
{
return _showAddTabButton;
}
- (void)setShowAddTabButton:(BOOL)value
{
_showAddTabButton = value;
[self update];
}
- (int)cellMinWidth
{
return _cellMinWidth;
}
- (void)setCellMinWidth:(int)value
{
_cellMinWidth = value;
[self update];
}
- (int)cellMaxWidth
{
return _cellMaxWidth;
}
- (void)setCellMaxWidth:(int)value
{
_cellMaxWidth = value;
[self update];
}
- (int)cellOptimumWidth
{
return _cellOptimumWidth;
}
- (void)setCellOptimumWidth:(int)value
{
_cellOptimumWidth = value;
[self update];
}
- (BOOL)sizeCellsToFit
{
return _sizeCellsToFit;
}
- (void)setSizeCellsToFit:(BOOL)value
{
_sizeCellsToFit = value;
[self update];
}
- (PSMRolloverButton *)addTabButton
{
return _addTabButton;
}
- (PSMOverflowPopUpButton *)overflowPopUpButton
{
return _overflowPopUpButton;
}
#pragma mark -
#pragma mark Tool tips
- (void)setToolTip:(NSString *)value forTabViewItem:(NSTabViewItem *)tvi
{
int i, cellCount = [_cells count];
for (i = 0; i < cellCount; i++) {
PSMTabBarCell *cell = [_cells objectAtIndex:i];
if ([cell representedObject] == tvi)
[cell setToolTip:value];
}
[self update];
}
#pragma mark -
#pragma mark Functionality
- (void)addTabViewItem:(NSTabViewItem *)item
{
// create cell
PSMTabBarCell *cell = [[PSMTabBarCell alloc] initWithControlView:self];
[cell setRepresentedObject:item];
// bind the indicator to the represented object's status (if it exists)
[[cell indicator] setHidden:YES];
if([item identifier] != nil){
if([[item identifier] respondsToSelector:@selector(content)]){
if([[[[cell representedObject] identifier] performSelector:@selector(content)] respondsToSelector:@selector(isProcessing)]){
NSMutableDictionary *bindingOptions = [NSMutableDictionary dictionary];
[bindingOptions setObject:NSNegateBooleanTransformerName forKey:@"NSValueTransformerName"];
[[cell indicator] bind:@"animate" toObject:[item identifier] withKeyPath:@"selection.isProcessing" options:nil];
[[cell indicator] bind:@"hidden" toObject:[item identifier] withKeyPath:@"selection.isProcessing" options:bindingOptions];
[[item identifier] addObserver:self forKeyPath:@"selection.isProcessing" options:0 context:nil];
}
}
}
// bind for the existence of an icon
[cell setHasIcon:NO];
if([item identifier] != nil){
if([[item identifier] respondsToSelector:@selector(content)]){
if([[[[cell representedObject] identifier] performSelector:@selector(content)] respondsToSelector:@selector(icon)]){
NSMutableDictionary *bindingOptions = [NSMutableDictionary dictionary];
[bindingOptions setObject:NSIsNotNilTransformerName forKey:@"NSValueTransformerName"];
[cell bind:@"hasIcon" toObject:[item identifier] withKeyPath:@"selection.icon" options:bindingOptions];
[[item identifier] addObserver:self forKeyPath:@"selection.icon" options:0 context:nil];
}
}
}
// bind for the existence of a counter
[cell setCount:0];
if([item identifier] != nil){
if([[item identifier] respondsToSelector:@selector(content)]){
if([[[[cell representedObject] identifier] performSelector:@selector(content)] respondsToSelector:@selector(objectCount)]){
[cell bind:@"count" toObject:[item identifier] withKeyPath:@"selection.objectCount" options:nil];
[[item identifier] addObserver:self forKeyPath:@"selection.objectCount" options:0 context:nil];
}
}
}
// bind my string value to the label on the represented tab
[cell bind:@"title" toObject:item withKeyPath:@"label" options:nil];
// add to collection
[_cells addObject:cell];
[cell release];
if([_cells count] == [tabView numberOfTabViewItems]){
[self update]; // don't update unless all are accounted for!
}
}
- (void)removeTabForCell:(PSMTabBarCell *)cell
{
// unbind
[[cell indicator] unbind:@"animate"];
[[cell indicator] unbind:@"hidden"];
[cell unbind:@"hasIcon"];
[cell unbind:@"title"];
[cell unbind:@"count"];
// remove indicator
if([[self subviews] containsObject:[cell indicator]]){
[[cell indicator] removeFromSuperview];
}
// remove tracking
[[NSNotificationCenter defaultCenter] removeObserver:cell];
if([cell closeButtonTrackingTag] != 0){
[self removeTrackingRect:[cell closeButtonTrackingTag]];
[cell setCloseButtonTrackingTag:0];
}
if([cell cellTrackingTag] != 0){
[self removeTrackingRect:[cell cellTrackingTag]];
[cell setCellTrackingTag:0];
}
// pull from collection
[_cells removeObject:cell];
[self update];
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
// the progress indicator, label, icon, or count has changed - must redraw
[self update];
}
#pragma mark -
#pragma mark Hide/Show
- (void)hideTabBar:(BOOL)hide animate:(BOOL)animate
{
if(!_awakenedFromNib)
return;
if(_isHidden && hide)
return;
if(!_isHidden && !hide)
return;
[[self subviews] makeObjectsPerformSelector:@selector(removeFromSuperview)];
_hideIndicators = YES;
NSTimer *animationTimer;
_isHidden = hide;
_currentStep = 0;
if(!animate)
_currentStep = (int)kPSMHideAnimationSteps;
float partnerOriginalHeight, partnerOriginalY, myOriginalHeight, myOriginalY, partnerTargetHeight, partnerTargetY, myTargetHeight, myTargetY;
// current (original) values
myOriginalHeight = [self frame].size.height;
myOriginalY = [self frame].origin.y;
if(partnerView){
partnerOriginalHeight = [partnerView frame].size.height;
partnerOriginalY = [partnerView frame].origin.y;
} else {
partnerOriginalHeight = [[self window] frame].size.height;
partnerOriginalY = [[self window] frame].origin.y;
}
// target values for partner
if(partnerView){
// above or below me?
if((myOriginalY - 22) > partnerOriginalY){
// partner is below me
if(_isHidden){
// I'm shrinking
myTargetY = myOriginalY + 21;
myTargetHeight = myOriginalHeight - 21;
partnerTargetY = partnerOriginalY;
partnerTargetHeight = partnerOriginalHeight + 21;
} else {
// I'm growing
myTargetY = myOriginalY - 21;
myTargetHeight = myOriginalHeight + 21;
partnerTargetY = partnerOriginalY;
partnerTargetHeight = partnerOriginalHeight - 21;
}
} else {
// partner is above me
if(_isHidden){
// I'm shrinking
myTargetY = myOriginalY;
myTargetHeight = myOriginalHeight - 21;
partnerTargetY = partnerOriginalY - 21;
partnerTargetHeight = partnerOriginalHeight + 21;
} else {
// I'm growing
myTargetY = myOriginalY;
myTargetHeight = myOriginalHeight + 21;
partnerTargetY = partnerOriginalY + 21;
partnerTargetHeight = partnerOriginalHeight - 21;
}
}
} else {
// for window movement
if(_isHidden){
// I'm shrinking
myTargetY = myOriginalY;
myTargetHeight = myOriginalHeight - 21;
partnerTargetY = partnerOriginalY + 21;
partnerTargetHeight = partnerOriginalHeight - 21;
} else {
// I'm growing
myTargetY = myOriginalY;
myTargetHeight = myOriginalHeight + 21;
partnerTargetY = partnerOriginalY - 21;
partnerTargetHeight = partnerOriginalHeight + 21;
}
}
NSDictionary *userInfo = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithFloat:myOriginalY], @"myOriginalY", [NSNumber numberWithFloat:partnerOriginalY], @"partnerOriginalY", [NSNumber numberWithFloat:myOriginalHeight], @"myOriginalHeight", [NSNumber numberWithFloat:partnerOriginalHeight], @"partnerOriginalHeight", [NSNumber numberWithFloat:myTargetY], @"myTargetY", [NSNumber numberWithFloat:partnerTargetY], @"partnerTargetY", [NSNumber numberWithFloat:myTargetHeight], @"myTargetHeight", [NSNumber numberWithFloat:partnerTargetHeight], @"partnerTargetHeight", nil];
animationTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0/20.0) target:self selector:@selector(animateShowHide:) userInfo:userInfo repeats:YES];
}
- (void)animateShowHide:(NSTimer *)timer
{
// moves the frame of the tab bar and window (or partner view) linearly to hide or show the tab bar
NSRect myFrame = [self frame];
float myCurrentY = ([[[timer userInfo] objectForKey:@"myOriginalY"] floatValue] + (([[[timer userInfo] objectForKey:@"myTargetY"] floatValue] - [[[timer userInfo] objectForKey:@"myOriginalY"] floatValue]) * (_currentStep/kPSMHideAnimationSteps)));
float myCurrentHeight = ([[[timer userInfo] objectForKey:@"myOriginalHeight"] floatValue] + (([[[timer userInfo] objectForKey:@"myTargetHeight"] floatValue] - [[[timer userInfo] objectForKey:@"myOriginalHeight"] floatValue]) * (_currentStep/kPSMHideAnimationSteps)));
float partnerCurrentY = ([[[timer userInfo] objectForKey:@"partnerOriginalY"] floatValue] + (([[[timer userInfo] objectForKey:@"partnerTargetY"] floatValue] - [[[timer userInfo] objectForKey:@"partnerOriginalY"] floatValue]) * (_currentStep/kPSMHideAnimationSteps)));
float partnerCurrentHeight = ([[[timer userInfo] objectForKey:@"partnerOriginalHeight"] floatValue] + (([[[timer userInfo] objectForKey:@"partnerTargetHeight"] floatValue] - [[[timer userInfo] objectForKey:@"partnerOriginalHeight"] floatValue]) * (_currentStep/kPSMHideAnimationSteps)));
NSRect myNewFrame = NSMakeRect(myFrame.origin.x, myCurrentY, myFrame.size.width, myCurrentHeight);
if(partnerView){
// resize self and view
[partnerView setFrame:NSMakeRect([partnerView frame].origin.x, partnerCurrentY, [partnerView frame].size.width, partnerCurrentHeight)];
[partnerView setNeedsDisplay:YES];
[self setFrame:myNewFrame];
} else {
// resize self and window
[[self window] setFrame:NSMakeRect([[self window] frame].origin.x, partnerCurrentY, [[self window] frame].size.width, partnerCurrentHeight) display:YES];
[self setFrame:myNewFrame];
}
// next
_currentStep++;
if(_currentStep == kPSMHideAnimationSteps + 1){
[timer invalidate];
[self viewDidEndLiveResize];
_hideIndicators = NO;
[self update];
}
[[self window] display];
}
- (id)partnerView
{
return partnerView;
}
- (void)setPartnerView:(id)view
{
[partnerView release];
[view retain];
partnerView = view;
}
#pragma mark -
#pragma mark Drawing
- (BOOL)isFlipped
{
return YES;
}
- (void)drawRect:(NSRect)rect
{
[style drawTabBar:self inRect:rect];
}
- (void)update
{
// abandon hope, all ye who enter here :-)
// this method handles all of the cell layout, and is called when something changes to require the refresh. This method is not called during drag and drop; see the PSMTabDragAssistant's calculateDragAnimationForTabBar: method, which does layout in that case.
// make sure all of our tabs are accounted for before updating
if ([tabView numberOfTabViewItems] != [_cells count]) {
return;
}
// hide/show? (these return if already in desired state)
if((_hideForSingleTab) && ([_cells count] <= 1)){
[self hideTabBar:YES animate:YES];
} else {
[self hideTabBar:NO animate:YES];
}
// size all cells appropriately and create tracking rects
// nuke old tracking rects
int i, cellCount = [_cells count];
for(i = 0; i < cellCount; i++){
id cell = [_cells objectAtIndex:i];
[[NSNotificationCenter defaultCenter] removeObserver:cell];
if([cell closeButtonTrackingTag] != 0){
[self removeTrackingRect:[cell closeButtonTrackingTag]];
[cell setCloseButtonTrackingTag:0];
}
if([cell cellTrackingTag] != 0){
[self removeTrackingRect:[cell cellTrackingTag]];
[cell setCellTrackingTag:0];
}
}
// nuke old tool tips
[self removeAllToolTips];
// calculate number of cells to fit in control and cell widths
float availableWidth = [self availableCellWidth];
NSMutableArray *newWidths = [NSMutableArray arrayWithCapacity:cellCount];
int numberOfVisibleCells = 1;
float totalOccupiedWidth = 0.0;
NSMenu *overflowMenu = nil;
for(i = 0; i < cellCount; i++){
PSMTabBarCell *cell = [_cells objectAtIndex:i];
float width;
// supress close button?
if (cellCount == 1 && [self canCloseOnlyTab] == NO) {
[cell setCloseButtonSuppressed:YES];
} else {
[cell setCloseButtonSuppressed:NO];
}
// Determine cell width
if(_sizeCellsToFit){
width = [cell desiredWidthOfCell];
if (width > _cellMaxWidth) {
width = _cellMaxWidth;
}
} else {
width = _cellOptimumWidth;
}
// too much?
totalOccupiedWidth += width;
if (totalOccupiedWidth >= availableWidth) {
numberOfVisibleCells = i;
if(_sizeCellsToFit){
int neededWidth = width - (totalOccupiedWidth - availableWidth);
// can I squeeze it in without violating min cell width?
int widthIfAllMin = (numberOfVisibleCells + 1) * _cellMinWidth;
if ((width + widthIfAllMin) <= availableWidth) {
// squeeze - distribute needed sacrifice among all cells
int q;
for(q = (i - 1); q >= 0; q--){
int desiredReduction = (int)neededWidth/(q+1);
if(([[newWidths objectAtIndex:q] floatValue] - desiredReduction) < _cellMinWidth){
int actualReduction = (int)[[newWidths objectAtIndex:q] floatValue] - _cellMinWidth;
[newWidths replaceObjectAtIndex:q withObject:[NSNumber numberWithFloat:_cellMinWidth]];
neededWidth -= actualReduction;
} else {
int newCellWidth = (int)[[newWidths objectAtIndex:q] floatValue] - desiredReduction;
[newWidths replaceObjectAtIndex:q withObject:[NSNumber numberWithFloat:newCellWidth]];
neededWidth -= desiredReduction;
}
}
// one cell left!
int thisWidth = width - neededWidth;
[newWidths addObject:[NSNumber numberWithFloat:thisWidth]];
numberOfVisibleCells++;
} else {
// stretch - distribute leftover room among cells
int leftoverWidth = availableWidth - totalOccupiedWidth + width;
int q;
for(q = (i - 1); q >= 0; q--){
int desiredAddition = (int)leftoverWidth/(q+1);
int newCellWidth = (int)[[newWidths objectAtIndex:q] floatValue] + desiredAddition;
[newWidths replaceObjectAtIndex:q withObject:[NSNumber numberWithFloat:newCellWidth]];
leftoverWidth -= desiredAddition;
}
}
break; // done assigning widths; remaining cells go in overflow menu
} else {
int revisedWidth = availableWidth/(i + 1);
if(revisedWidth >= _cellMinWidth){
int q;
totalOccupiedWidth = 0;
for(q = 0; q < [newWidths count]; q++){
[newWidths replaceObjectAtIndex:q withObject:[NSNumber numberWithFloat:revisedWidth]];
totalOccupiedWidth += revisedWidth;
}
// just squeezed this one in...
[newWidths addObject:[NSNumber numberWithFloat:revisedWidth]];
totalOccupiedWidth += revisedWidth;
numberOfVisibleCells++;
} else {
// couldn't fit that last one...
break;
}
}
} else {
numberOfVisibleCells = cellCount;
[newWidths addObject:[NSNumber numberWithFloat:width]];
}
}
// Set up cells with frames and rects
NSRect cellRect = [self genericCellRect];
for(i = 0; i < cellCount; i++){
PSMTabBarCell *cell = [_cells objectAtIndex:i];
NSTabViewItem *tvi = [cell representedObject];
int tabState = 0;
if (i < numberOfVisibleCells) {
// set cell frame
cellRect.size.width = [[newWidths objectAtIndex:i] floatValue];
[cell setFrame:cellRect];
NSTrackingRectTag tag;
// close button tracking rect
if ([cell hasCloseButton]) {
tag = [self addTrackingRect:[cell closeButtonRectForFrame:cellRect] owner:cell userData:nil assumeInside:NO];
[cell setCloseButtonTrackingTag:tag];
}
// entire tab tracking rect
tag = [self addTrackingRect:cellRect owner:cell userData:nil assumeInside:NO];
[cell setCellTrackingTag:tag];
[cell setEnabled:YES];
// add tool tip
NSString *tt = [cell toolTip];
if (tt && [tt length] > 0)
[self addToolTipRect:cellRect owner:tt userData:NULL];
// selected? set tab states...
if([tvi isEqualTo:[tabView selectedTabViewItem]]){
[cell setState:NSOnState];
tabState |= PSMTab_SelectedMask;
// previous cell
if(i > 0){
[[_cells objectAtIndex:i-1] setTabState:([(PSMTabBarCell *)[_cells objectAtIndex:i-1] tabState] | PSMTab_RightIsSelectedMask)];
}
// next cell - see below
} else {
[cell setState:NSOffState];
// see if prev cell was selected
if(i > 0){
if([[_cells objectAtIndex:i-1] state] == NSOnState){
tabState |= PSMTab_LeftIsSelectedMask;
}
}
}
// more tab states
if(cellCount == 1){
tabState |= PSMTab_PositionLeftMask | PSMTab_PositionRightMask | PSMTab_PositionSingleMask;
} else if(i == 0){
tabState |= PSMTab_PositionLeftMask;
} else if(i-1 == cellCount){
tabState |= PSMTab_PositionRightMask;
}
[cell setTabState:tabState];
[cell setIsInOverflowMenu:NO];
// indicator
if(![[cell indicator] isHidden] && !_hideIndicators){
[[cell indicator] setFrame:[cell indicatorRectForFrame:cellRect]];
if(![[self subviews] containsObject:[cell indicator]]){
[self addSubview:[cell indicator]];
[[cell indicator] startAnimation:self];
}
}
// next...
cellRect.origin.x += [[newWidths objectAtIndex:i] floatValue];
} else {
// set up menu items
NSMenuItem *menuItem;
if(overflowMenu == nil){
overflowMenu = [[[NSMenu alloc] initWithTitle:@"TITLE"] autorelease];
[overflowMenu insertItemWithTitle:@"FIRST" action:nil keyEquivalent:@"" atIndex:0]; // Because the overflowPupUpButton is a pull down menu
}
menuItem = [[[NSMenuItem alloc] initWithTitle:[[cell attributedStringValue] string] action:@selector(overflowMenuAction:) keyEquivalent:@""] autorelease];
[menuItem setTarget:self];
[menuItem setRepresentedObject:tvi];
[cell setIsInOverflowMenu:YES];
[[cell indicator] removeFromSuperview];
if ([tvi isEqualTo:[tabView selectedTabViewItem]])
[menuItem setState:NSOnState];
if([cell hasIcon])
[menuItem setImage:[[[tvi identifier] content] icon]];
if([cell count] > 0)
[menuItem setTitle:[[menuItem title] stringByAppendingFormat:@" (%d)",[cell count]]];
[overflowMenu addItem:menuItem];
}
}
// Overflow menu
cellRect.origin.y = 0;
cellRect.size.height = kPSMTabBarControlHeight;
cellRect.size.width = [style rightMarginForTabBarControl];
if (overflowMenu) {
cellRect.origin.x = [self frame].size.width - [style rightMarginForTabBarControl] + 1;
if(![[self subviews] containsObject:_overflowPopUpButton]){
[self addSubview:_overflowPopUpButton];
}
[_overflowPopUpButton setFrame:cellRect];
[_overflowPopUpButton setMenu:overflowMenu];
if ([_overflowPopUpButton isHidden]) [_overflowPopUpButton setHidden:NO];
} else {
if (![_overflowPopUpButton isHidden]) [_overflowPopUpButton setHidden:YES];
}
// add tab button
if(!overflowMenu && _showAddTabButton){
if(![[self subviews] containsObject:_addTabButton])
[self addSubview:_addTabButton];
if([_addTabButton isHidden] && _showAddTabButton)
[_addTabButton setHidden:NO];
cellRect.size = [_addTabButton frame].size;
cellRect.origin.y = MARGIN_Y;
cellRect.origin.x += 2;
[_addTabButton setImage:[style addTabButtonImage]];
[_addTabButton setFrame:cellRect];
[_addTabButton setNeedsDisplay:YES];
} else {
[_addTabButton setHidden:YES];
[_addTabButton setNeedsDisplay:YES];
}
[self setNeedsDisplay:YES];
}
#pragma mark -
#pragma mark Mouse Tracking
- (BOOL)mouseDownCanMoveWindow
{
return NO;
}
- (BOOL)acceptsFirstMouse:(NSEvent *)theEvent
{
return YES;
}
- (void)mouseDown:(NSEvent *)theEvent
{
// keep for dragging
[self setLastMouseDownEvent:theEvent];
// what cell?
NSPoint mousePt = [self convertPoint:[theEvent locationInWindow] fromView:nil];
NSRect cellFrame;
PSMTabBarCell *cell = [self cellForPoint:mousePt cellFrame:&cellFrame];
if(cell){
#if 0
NSRect iconRect = [cell closeButtonRectForFrame:cellFrame];
if(NSMouseInRect(mousePt, iconRect,[self isFlipped])){
[cell setCloseButtonPressed:YES];
} else {
[cell setCloseButtonPressed:NO];
}
[self setNeedsDisplay:YES];
#else
// HACK! Let the tabs react on the mouse down instead of mouse up
NSRect iconRect = [cell closeButtonRectForFrame:cellFrame];
if((NSMouseInRect(mousePt, iconRect,[self isFlipped]))){
//[self performSelector:@selector(closeTabClick:) withObject:cell];
[self closeTabClick:cell];
} else if(NSMouseInRect(mousePt, cellFrame,[self isFlipped])){
//[self performSelector:@selector(tabClick:) withObject:cell];
[self tabClick:cell];
} else {
//[self performSelector:@selector(tabNothing:) withObject:cell];
[self tabNothing:cell];
}
#endif
}
}
- (void)mouseDragged:(NSEvent *)theEvent
{
if([self lastMouseDownEvent] == nil){
return;
}
if ([_cells count] < 2) {
return;
}
NSRect cellFrame;
NSPoint trackingStartPoint = [self convertPoint:[[self lastMouseDownEvent] locationInWindow] fromView:nil];
PSMTabBarCell *cell = [self cellForPoint:trackingStartPoint cellFrame:&cellFrame];
if (!cell)
return;
NSPoint currentPoint = [self convertPoint:[theEvent locationInWindow] fromView:nil];
float dx = fabs(currentPoint.x - trackingStartPoint.x);
float dy = fabs(currentPoint.y - trackingStartPoint.y);
float distance = sqrt(dx * dx + dy * dy);
if (distance < 10)
return;
if(![[PSMTabDragAssistant sharedDragAssistant] isDragging]) {
[[PSMTabDragAssistant sharedDragAssistant] startDraggingCell:cell fromTabBar:self withMouseDownEvent:[self lastMouseDownEvent]];
}
}
- (void)mouseUp:(NSEvent *)theEvent
{
#if 0 // HACK! Tabs react on mouse down instead of mouse up
// what cell?
NSPoint mousePt = [self convertPoint:[theEvent locationInWindow] fromView:nil];
NSRect cellFrame, mouseDownCellFrame;
PSMTabBarCell *cell = [self cellForPoint:mousePt cellFrame:&cellFrame];
PSMTabBarCell *mouseDownCell = [self cellForPoint:[self convertPoint:[[self lastMouseDownEvent] locationInWindow] fromView:nil] cellFrame:&mouseDownCellFrame];
if(cell){
NSRect iconRect = [mouseDownCell closeButtonRectForFrame:mouseDownCellFrame];
if((NSMouseInRect(mousePt, iconRect,[self isFlipped])) && [mouseDownCell closeButtonPressed]){
[self performSelector:@selector(closeTabClick:) withObject:cell];
} else if(NSMouseInRect(mousePt, mouseDownCellFrame,[self isFlipped])){
[mouseDownCell setCloseButtonPressed:NO];
[self performSelector:@selector(tabClick:) withObject:cell];
} else {
[mouseDownCell setCloseButtonPressed:NO];
[self performSelector:@selector(tabNothing:) withObject:cell];
}
}
#endif
}
#pragma mark -
#pragma mark Drag and Drop