/*

     File: HoverTableView.m 

 Abstract: Custom NSTableView to override its grid drawing behavior (via drawGridInClipRect). 

  Version: 1.1 

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 */

#import "HoverTableView.h"

#import "HoverTableRowView.h" // For the grid drawing shared code

@implementation HoverTableView

- (CGFloat)yPositionPastLastRow {

    // Only draw the grid past the last visible row

    NSInteger numberOfRows = self.numberOfRows;

    CGFloat yStart = 0;

    if (numberOfRows > 0) {

        yStart = NSMaxY([self rectOfRow:numberOfRows - 1]);

    }

    return yStart;

}

- (void)drawGridInClipRect:(NSRect)clipRect {

    // Only draw the grid past the last visible row

    CGFloat yStart = [self yPositionPastLastRow];

    // Draw the first separator one row past the last row

    yStart += self.rowHeight;

    // One thing to do is smarter clip testing to see if we actually need to draw!

    NSRect boundsToDraw = self.bounds;

    NSRect separatorRect = boundsToDraw;

    separatorRect.size.height = 1;

    while (yStart < NSMaxY(boundsToDraw)) {

        separatorRect.origin.y = yStart;

        DrawSeparatorInRect(separatorRect);

        yStart += self.rowHeight;

    }

}

- (void)setFrameSize:(NSSize)size {

    [super setFrameSize:size];

    // We need to invalidate more things when live-resizing since we fill with a gradient and stroke

    if ([self inLiveResize]) {

        CGFloat yStart = [self yPositionPastLastRow];

        if (NSHeight(self.bounds) > yStart) {

            // Redraw our horizontal grid lines

            NSRect boundsPastY = self.bounds;

            boundsPastY.size.height -= yStart;

            boundsPastY.origin.y = yStart;

            [self setNeedsDisplayInRect:boundsPastY];

        }

    }

}

@end