/*

 Copyright (C) 2015 Apple Inc. All Rights Reserved.

  See LICENSE.txt for this sample’s licensing information

  Abstract:

  Custom NSWindowController subclass used for managing the mail-style window. 

 */

#import "MailWindowController.h"

@interface MailWindowController ()

@property (weak) IBOutlet NSSplitView *verticalSplitView;

@property (weak) IBOutlet NSSplitView *horizontalSplitView;

@property (weak) IBOutlet NSView *dividerHandleView;

@end

#pragma mark -

@implementation MailWindowController

// -------------------------------------------------------------------------------

//  windowDidLoad

// -------------------------------------------------------------------------------

- (void)windowDidLoad

{

    (self.verticalSplitView).delegate = self;   // we want a chance to affect the vertical split view coverage

}

// -------------------------------------------------------------------------------

//  splitView:effectiveRect:effectiveRect:forDrawnRect:ofDividerAtIndex

// -------------------------------------------------------------------------------

- (NSRect)splitView:(NSSplitView *)splitView effectiveRect:(NSRect)proposedEffectiveRect forDrawnRect:(NSRect)drawnRect ofDividerAtIndex:(NSInteger)dividerIndex

{

    NSRect effectiveRect = drawnRect;

    if (splitView == self.verticalSplitView)

    {

        // don't steal as much from the scroll bar as NSSplitView normally would

        effectiveRect.origin.x -= 2.0;

        effectiveRect.size.width += 6.0;

    }

    return effectiveRect;

}

// -------------------------------------------------------------------------------

//  splitView:additionalEffectiveRectOfDividerAtIndex:dividerIndex:

// -------------------------------------------------------------------------------

- (NSRect)splitView:(NSSplitView *)splitView additionalEffectiveRectOfDividerAtIndex:(NSInteger)dividerIndex

{

    // we have a divider handle next to one of the split views in the window

    if (splitView == self.verticalSplitView)

    {

        return [self.dividerHandleView convertRect:(self.dividerHandleView).bounds toView:splitView];

    }

    else

    {

        return NSZeroRect;

    }

}

// -------------------------------------------------------------------------------

//  constrainMinCoordinate:proposedCoordinate:index

// -------------------------------------------------------------------------------

- (CGFloat)splitView:(NSSplitView *)splitView constrainMinCoordinate:(CGFloat)proposedCoordinate ofSubviewAt:(NSInteger)index

{

    CGFloat constrainedCoordinate = proposedCoordinate;

    if (splitView == self.verticalSplitView)

    {

        // the primary vertical split view is asking for a constrained size,

        // keep the right view no smaller than 120 points

        constrainedCoordinate = proposedCoordinate + 120.0;

    }

    else if (splitView == self.horizontalSplitView)

    {

        // the horizontal split view between mailboxes and activity view,

        // keep the top view at no smaller than 40 points

        constrainedCoordinate = proposedCoordinate + 40.0;

    }

    return constrainedCoordinate;

}

- (CGFloat)splitView:(NSSplitView *)splitView constrainMaxCoordinate:(CGFloat)proposedMaximumPosition ofSubviewAt:(NSInteger)dividerIndex

{

    CGFloat constrainedCoordinate = proposedMaximumPosition;

    if (splitView == self.horizontalSplitView)

    {

        // the horizontal split view between mailboxes and activity view,

        // keep the max size relative to the window size

        constrainedCoordinate = splitView.frame.size.height - 90;

    }

    return constrainedCoordinate;

}

@end