2015-08-15 16:05:48 -05:00
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// 15 august 2015
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#import "uipriv_darwin.h"
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2016-04-30 16:14:14 -05:00
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NSLayoutConstraint *mkConstraint(id view1, NSLayoutAttribute attr1, NSLayoutRelation relation, id view2, NSLayoutAttribute attr2, CGFloat multiplier, CGFloat c, NSString *desc)
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2015-08-15 16:05:48 -05:00
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{
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NSLayoutConstraint *constraint;
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2015-08-15 16:05:48 -05:00
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2016-04-30 17:07:36 -05:00
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constraint = [NSLayoutConstraint constraintWithItem:view1
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attribute:attr1
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relatedBy:relation
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toItem:view2
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attribute:attr2
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multiplier:multiplier
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constant:c];
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// apparently only added in 10.9
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2016-04-30 17:07:36 -05:00
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if ([constraint respondsToSelector:@selector(setIdentifier:)])
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[((id) constraint) setIdentifier:desc];
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return constraint;
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2015-08-15 16:05:48 -05:00
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}
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2016-05-11 17:06:29 -05:00
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2016-05-12 19:18:22 -05:00
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// this is needed for NSSplitView to work properly; see http://stackoverflow.com/questions/34574478/how-can-i-set-the-position-of-a-nssplitview-nowadays-setpositionofdivideratind (stal in irc.freenode.net/#macdev came up with the exact combination)
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2016-05-12 19:20:39 -05:00
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// turns out it also works on NSTabView and NSBox too, possibly others!
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// and for bonus points, it even seems to fix unsatisfiable-constraint-autoresizing-mask issues with NSTabView and NSBox too!!! this is nuts
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2016-05-12 19:18:22 -05:00
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void jiggleViewLayout(NSView *view)
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{
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[view setNeedsLayout:YES];
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[view layoutSubtreeIfNeeded];
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}
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2016-05-11 17:06:29 -05:00
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static CGFloat margins(int margined)
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{
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if (!margined)
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return 0.0;
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return 20.0; // TODO named constant
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}
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void singleChildConstraintsEstablish(struct singleChildConstraints *c, NSView *contentView, NSView *childView, BOOL hugsTrailing, BOOL hugsBottom, int margined, NSString *desc)
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{
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CGFloat margin;
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margin = margins(margined);
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c->leadingConstraint = mkConstraint(contentView, NSLayoutAttributeLeading,
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NSLayoutRelationEqual,
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childView, NSLayoutAttributeLeading,
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1, -margin,
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[desc stringByAppendingString:@" leading constraint"]);
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[contentView addConstraint:c->leadingConstraint];
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[c->leadingConstraint retain];
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c->topConstraint = mkConstraint(contentView, NSLayoutAttributeTop,
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NSLayoutRelationEqual,
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childView, NSLayoutAttributeTop,
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1, -margin,
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[desc stringByAppendingString:@" top constraint"]);
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[contentView addConstraint:c->topConstraint];
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[c->topConstraint retain];
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2016-05-13 12:08:00 -05:00
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c->trailingConstraintGreater = mkConstraint(contentView, NSLayoutAttributeTrailing,
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NSLayoutRelationGreaterThanOrEqual,
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childView, NSLayoutAttributeTrailing,
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1, margin,
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[desc stringByAppendingString:@" trailing >= constraint"]);
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if (hugsTrailing)
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[c->trailingConstraintGreater setPriority:NSLayoutPriorityDefaultLow];
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[contentView addConstraint:c->trailingConstraintGreater];
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[c->trailingConstraintGreater retain];
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c->trailingConstraintEqual = mkConstraint(contentView, NSLayoutAttributeTrailing,
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NSLayoutRelationEqual,
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childView, NSLayoutAttributeTrailing,
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1, margin,
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[desc stringByAppendingString:@" trailing == constraint"]);
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if (!hugsTrailing)
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[c->trailingConstraintEqual setPriority:NSLayoutPriorityDefaultLow];
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[contentView addConstraint:c->trailingConstraintEqual];
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[c->trailingConstraintEqual retain];
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2016-05-11 17:06:29 -05:00
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2016-05-13 12:08:00 -05:00
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c->bottomConstraintGreater = mkConstraint(contentView, NSLayoutAttributeBottom,
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NSLayoutRelationGreaterThanOrEqual,
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childView, NSLayoutAttributeBottom,
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1, margin,
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[desc stringByAppendingString:@" bottom >= constraint"]);
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2016-05-11 17:06:29 -05:00
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if (hugsBottom)
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[c->bottomConstraintGreater setPriority:NSLayoutPriorityDefaultLow];
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[contentView addConstraint:c->bottomConstraintGreater];
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[c->bottomConstraintGreater retain];
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c->bottomConstraintEqual = mkConstraint(contentView, NSLayoutAttributeBottom,
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NSLayoutRelationEqual,
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childView, NSLayoutAttributeBottom,
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1, margin,
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[desc stringByAppendingString:@" bottom == constraint"]);
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if (!hugsBottom)
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[c->bottomConstraintEqual setPriority:NSLayoutPriorityDefaultLow];
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[contentView addConstraint:c->bottomConstraintEqual];
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[c->bottomConstraintEqual retain];
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2016-05-11 17:06:29 -05:00
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}
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void singleChildConstraintsRemove(struct singleChildConstraints *c, NSView *cv)
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{
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if (c->leadingConstraint != nil) {
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[cv removeConstraint:c->leadingConstraint];
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[c->leadingConstraint release];
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c->leadingConstraint = nil;
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}
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if (c->topConstraint != nil) {
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[cv removeConstraint:c->topConstraint];
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[c->topConstraint release];
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c->topConstraint = nil;
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}
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2016-05-13 12:08:00 -05:00
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if (c->trailingConstraintGreater != nil) {
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[cv removeConstraint:c->trailingConstraintGreater];
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[c->trailingConstraintGreater release];
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c->trailingConstraintGreater = nil;
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}
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if (c->trailingConstraintEqual != nil) {
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[cv removeConstraint:c->trailingConstraintEqual];
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[c->trailingConstraintEqual release];
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c->trailingConstraintEqual = nil;
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}
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if (c->bottomConstraintGreater != nil) {
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[cv removeConstraint:c->bottomConstraintGreater];
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[c->bottomConstraintGreater release];
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c->bottomConstraintGreater = nil;
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}
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2016-05-13 12:08:00 -05:00
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if (c->bottomConstraintEqual != nil) {
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[cv removeConstraint:c->bottomConstraintEqual];
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[c->bottomConstraintEqual release];
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c->bottomConstraintEqual = nil;
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2016-05-11 17:06:29 -05:00
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}
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}
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void singleChildConstraintsSetMargined(struct singleChildConstraints *c, int margined)
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{
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CGFloat margin;
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margin = margins(margined);
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if (c->leadingConstraint != nil)
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2016-05-12 00:49:00 -05:00
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[c->leadingConstraint setConstant:-margin];
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2016-05-11 17:06:29 -05:00
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if (c->topConstraint != nil)
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2016-05-12 00:49:00 -05:00
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[c->topConstraint setConstant:-margin];
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2016-05-13 12:08:00 -05:00
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if (c->trailingConstraintGreater != nil)
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[c->trailingConstraintGreater setConstant:margin];
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if (c->trailingConstraintEqual != nil)
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[c->trailingConstraintEqual setConstant:margin];
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if (c->bottomConstraintGreater != nil)
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[c->bottomConstraintGreater setConstant:margin];
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if (c->bottomConstraintEqual != nil)
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[c->bottomConstraintEqual setConstant:margin];
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2016-05-11 17:06:29 -05:00
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}
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2016-05-12 16:09:24 -05:00
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2016-05-12 16:23:35 -05:00
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// from http://blog.bjhomer.com/2014/08/nsscrollview-and-autolayout.html because (as pointed out there) Apple's official guide is really only for iOS
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// TODO this doesn't quite work with NSTextView; it *mostly* works
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2016-05-12 16:09:24 -05:00
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void scrollViewConstraintsEstablish(struct scrollViewConstraints *c, NSScrollView *sv, NSString *desc)
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{
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NSView *cv, *dv;
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scrollViewConstraintsRemove(c, sv);
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cv = [sv contentView];
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dv = [sv documentView];
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c->documentLeading = mkConstraint(dv, NSLayoutAttributeLeading,
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NSLayoutRelationEqual,
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cv, NSLayoutAttributeLeading,
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1, 0,
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[desc stringByAppendingString:@"document leading constraint"]);
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[sv addConstraint:c->documentLeading];
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[c->documentLeading retain];
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c->documentTop = mkConstraint(dv, NSLayoutAttributeTop,
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NSLayoutRelationEqual,
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cv, NSLayoutAttributeTop,
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1, 0,
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[desc stringByAppendingString:@"document top constraint"]);
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[sv addConstraint:c->documentTop];
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[c->documentTop retain];
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c->documentTrailing = mkConstraint(dv, NSLayoutAttributeTrailing,
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NSLayoutRelationEqual,
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cv, NSLayoutAttributeTrailing,
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1, 0,
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[desc stringByAppendingString:@"document trailing constraint"]);
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[sv addConstraint:c->documentTrailing];
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[c->documentTrailing retain];
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2016-05-12 16:23:35 -05:00
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#if 0
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c->documentBottom = mkConstraint(dv, NSLayoutAttributeBottom,
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NSLayoutRelationEqual,
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sv, NSLayoutAttributeBottom,
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1, 0,
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[desc stringByAppendingString:@"document bottom constraint"]);
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[sv addConstraint:c->documentBottom];
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[c->documentBottom retain];
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#endif
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}
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void scrollViewConstraintsRemove(struct scrollViewConstraints *c, NSScrollView *sv)
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{
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if (c->documentLeading != nil) {
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[sv removeConstraint:c->documentLeading];
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[c->documentLeading release];
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c->documentLeading = nil;
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}
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if (c->documentTop != nil) {
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[sv removeConstraint:c->documentTop];
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[c->documentTop release];
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c->documentTop = nil;
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}
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if (c->documentTrailing != nil) {
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[sv removeConstraint:c->documentTrailing];
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[c->documentTrailing release];
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c->documentTrailing = nil;
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}
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if (c->documentBottom != nil) {
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[sv removeConstraint:c->documentBottom];
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[c->documentBottom release];
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c->documentBottom = nil;
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}
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if (c->documentWidth != nil) {
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[sv removeConstraint:c->documentWidth];
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[c->documentWidth release];
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c->documentWidth = nil;
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}
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if (c->documentHeight != nil) {
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[sv removeConstraint:c->documentHeight];
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[c->documentHeight release];
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c->documentHeight = nil;
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}
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}
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