Split out more of the uiGrid logic. Rewrote the edge constraints to use a topological map of views. Added dummy views for empty cells.
This commit is contained in:
Pietro Gagliardi
parent
ebf4bce245
commit
77f4c2f309
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@ -0,0 +1,47 @@
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// now put all the views in the same row and column together
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for (x = 0; x < xcount; x++) {
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[set removeAllObjects];
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for (y = 0; y < ycount; y++)
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[set addObject:[NSNumber numberWithInt:gg[y][x]]];
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first = YES;
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for (number in set) {
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if ([number intValue] == -1)
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continue;
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gc = (gridChild *) [self->children objectAtIndex:[number intValue]];
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if (first) {
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firstView = [gc view];
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first = NO;
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continue;
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}
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c = mkConstraint([gc view], NSLayoutAttributeLeading,
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NSLayoutRelationEqual,
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firstView, NSLayoutAttributeLeading,
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1, 0,
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@"uiGrid column left edge constraint");
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[self addConstraint:c];
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[self->edges addObject:c];
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}
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}
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for (y = 0; y < ycount; y++) {
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[set removeAllObjects];
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for (x = 0; x < xcount; x++)
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[set addObject:[NSNumber numberWithInt:gg[y][x]]];
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first = YES;
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for (number in set) {
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if ([number intValue] == -1)
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continue;
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gc = (gridChild *) [self->children objectAtIndex:[number intValue]];
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if (first) {
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firstView = [gc view];
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first = NO;
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continue;
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}
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c = mkConstraint([gc view], NSLayoutAttributeTop,
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NSLayoutRelationEqual,
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firstView, NSLayoutAttributeTop,
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1, 0,
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@"uiGrid row top edge constraint");
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[self addConstraint:c];
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[self->edges addObject:c];
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}
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}
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@ -0,0 +1,66 @@
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NSView **colviews, **rowviews;
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// now go through every row and column and extract SOME view from that row and column for the inner constraints
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// if it turns out that a row or column is totally empty, duplicate the one to the left (this has the effect of collapsing empty rows)
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// note that the edges cannot be empty because we built a smallest fitting rectangle way back in step 1
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colviews = (NSView **) uiAlloc(xcount * sizeof (NSView *), "NSView *[]");
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for (x = 0; x < xcount; x++) {
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for (y = 0; y < ycount; y++)
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if (gg[y][x] != -1) {
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gc = (gridChild *) [self->children objectAtIndex:gg[y][x]];
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colviews[x] = [gc view];
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break;
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}
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if (colviews[x] == nil)
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colviews[x] = colviews[x - 1];
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}
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rowviews = (NSView **) uiAlloc(ycount * sizeof (NSView *), "NSView *[]");
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for (y = 0; y < ycount; y++) {
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for (x = 0; x < xcount; x++)
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if (gg[y][x] != -1) {
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gc = (gridChild *) [self->children objectAtIndex:gg[y][x]];
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rowviews[y] = [gc view];
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break;
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}
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if (rowviews[y] == nil)
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rowviews[y] = rowviews[y - 1];
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}
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// now string all the views together
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for (gc in self->children) {
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if (gc.left != xmin) {
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c = mkConstraint([gc view], NSLayoutAttributeLeading,
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NSLayoutRelationEqual,
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colviews[(gc.left - 1) - xmin], NSLayoutAttributeTrailing,
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1, padding,
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@"uiGrid leading constraint");
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[self addConstraint:c];
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[self->inBetweens addObject:c];
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}
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if (gc.top != ymin) {
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c = mkConstraint([gc view], NSLayoutAttributeTop,
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NSLayoutRelationEqual,
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rowviews[(gc.top - 1) - ymin], NSLayoutAttributeBottom,
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1, padding,
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@"uiGrid top constraint");
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[self addConstraint:c];
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[self->inBetweens addObject:c];
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}
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if ((gc.left + gc.xspan) != xmax) {
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c = mkConstraint([gc view], NSLayoutAttributeTrailing,
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NSLayoutRelationEqual,
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colviews[(gc.left + gc.xspan) - xmin], NSLayoutAttributeLeading,
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1, -padding,
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@"uiGrid trailing constraint");
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[self addConstraint:c];
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[self->inBetweens addObject:c];
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}
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if ((gc.top + gc.yspan) != ymax) {
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c = mkConstraint([gc view], NSLayoutAttributeBottom,
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NSLayoutRelationEqual,
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rowviews[(gc.top + gc.yspan) - ymin], NSLayoutAttributeTop,
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1, -padding,
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@"uiGrid bottom constraint");
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[self addConstraint:c];
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[self->inBetweens addObject:c];
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}
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}
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212
darwin/grid.m
212
darwin/grid.m
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@ -30,6 +30,8 @@
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NSMutableArray *edges;
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NSMutableArray *inBetweens;
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NSMutableArray *emptyCellViews;
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}
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- (id)initWithG:(uiGrid *)gg;
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- (void)onDestroy;
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@ -73,6 +75,8 @@ struct uiGrid {
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self->edges = [NSMutableArray new];
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self->inBetweens = [NSMutableArray new];
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self->emptyCellViews = [NSMutableArray new];
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}
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return self;
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}
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@ -85,6 +89,8 @@ struct uiGrid {
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[self->edges release];
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[self->inBetweens release];
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[self->emptyCellViews release];
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for (gc in self->children) {
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uiControlSetParent(gc.c, NULL);
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uiDarwinControlSetSuperview(uiDarwinControl(gc.c), nil);
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@ -95,6 +101,8 @@ struct uiGrid {
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- (void)removeOurConstraints
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{
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NSView *v;
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if ([self->edges count] != 0) {
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[self removeConstraints:self->edges];
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[self->edges removeAllObjects];
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@ -103,6 +111,10 @@ struct uiGrid {
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[self removeConstraints:self->inBetweens];
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[self->inBetweens removeAllObjects];
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}
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for (v in self->emptyCellViews)
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[v removeFromSuperview];
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[self->emptyCellViews removeAllObjects];
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}
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- (void)syncEnableStates:(int)enabled
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@ -129,13 +141,10 @@ struct uiGrid {
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intmax_t xcount, ycount;
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BOOL first;
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int **gg;
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NSView ***gv;
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intmax_t x, y;
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int i;
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NSMutableSet *set;
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NSNumber *number;
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NSLayoutConstraint *c;
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NSView **colviews, **rowviews;
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NSView *firstView;
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[self removeOurConstraints];
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if ([self->children count] == 0)
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@ -179,194 +188,67 @@ struct uiGrid {
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gg[y - ymin][x - xmin] = i;
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}
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// now build a topological map of the grid's views gv[y][x]
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// for any empty cell, create a dummy view
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gv = (NSView ***) uiAlloc(ycount * sizeof (NSView **), "NSView *[][]");
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for (y = 0; y < ycount; y++) {
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gv[y] = (NSView **) uiAlloc(xcount * sizeof (NSView *), "NSView *[]");
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for (x = 0; x < xcount; x++)
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if (gg[y][x] == -1) {
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gv[y][x] = [[NSView alloc] initWithFrame:NSZeroRect];
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[self addSubview:gv[y][x]];
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[self->emptyCellViews addObject:gv[y][x]];
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} else {
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gc = (gridChild *) [self->children objectAtIndex:gg[y][x]];
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gv[y][x] = [gc view];
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}
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}
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// now establish all the edge constraints
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// leading edge
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set = [NSMutableSet new];
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for (y = 0; y < ycount; y++)
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[set addObject:[NSNumber numberWithInt:gg[y][0]]];
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for (number in set)
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if ([number intValue] != -1) {
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gc = (gridChild *) [self->children objectAtIndex:[number intValue]];
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// leading and trailing edges
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for (y = 0; y < ycount; y++) {
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c = mkConstraint(self, NSLayoutAttributeLeading,
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NSLayoutRelationEqual,
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[gc view], NSLayoutAttributeLeading,
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gv[y][0], NSLayoutAttributeLeading,
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1, 0,
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@"uiGrid leading edge constraint");
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[self addConstraint:c];
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[self->edges addObject:c];
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}
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// top
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[set removeAllObjects];
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for (x = 0; x < xcount; x++)
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[set addObject:[NSNumber numberWithInt:gg[0][x]]];
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for (number in set)
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if ([number intValue] != -1) {
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gc = (gridChild *) [self->children objectAtIndex:[number intValue]];
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c = mkConstraint(self, NSLayoutAttributeTop,
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NSLayoutRelationEqual,
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[gc view], NSLayoutAttributeTop,
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1, 0,
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@"uiGrid top edge constraint");
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[self addConstraint:c];
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[self->edges addObject:c];
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}
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// trailing edge
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[set removeAllObjects];
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for (y = 0; y < ycount; y++)
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[set addObject:[NSNumber numberWithInt:gg[y][xcount - 1]]];
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for (number in set)
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if ([number intValue] != -1) {
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gc = (gridChild *) [self->children objectAtIndex:[number intValue]];
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c = mkConstraint(self, NSLayoutAttributeTrailing,
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NSLayoutRelationEqual,
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[gc view], NSLayoutAttributeTrailing,
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gv[y][xcount - 1], NSLayoutAttributeTrailing,
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1, 0,
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@"uiGrid trailing edge constraint");
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[self addConstraint:c];
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[self->edges addObject:c];
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}
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// bottom
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[set removeAllObjects];
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for (x = 0; x < xcount; x++)
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[set addObject:[NSNumber numberWithInt:gg[ycount - 1][x]]];
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for (number in set)
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if ([number intValue] != -1) {
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gc = (gridChild *) [self->children objectAtIndex:[number intValue]];
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// top and bottom edges
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for (x = 0; x < xcount; x++) {
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c = mkConstraint(self, NSLayoutAttributeTop,
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NSLayoutRelationEqual,
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gv[0][x], NSLayoutAttributeTop,
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1, 0,
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@"uiGrid top edge constraint");
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[self addConstraint:c];
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[self->edges addObject:c];
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c = mkConstraint(self, NSLayoutAttributeBottom,
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NSLayoutRelationEqual,
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[gc view], NSLayoutAttributeBottom,
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gv[ycount - 1][x], NSLayoutAttributeBottom,
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1, 0,
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@"uiGrid bottom edge constraint");
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[self addConstraint:c];
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[self->edges addObject:c];
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}
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// now put all the views in the same row and column together
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for (x = 0; x < xcount; x++) {
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[set removeAllObjects];
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for (y = 0; y < ycount; y++)
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[set addObject:[NSNumber numberWithInt:gg[y][x]]];
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first = YES;
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for (number in set) {
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if ([number intValue] == -1)
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continue;
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gc = (gridChild *) [self->children objectAtIndex:[number intValue]];
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if (first) {
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firstView = [gc view];
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first = NO;
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continue;
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}
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c = mkConstraint([gc view], NSLayoutAttributeLeading,
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NSLayoutRelationEqual,
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firstView, NSLayoutAttributeLeading,
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1, 0,
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@"uiGrid column left edge constraint");
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[self addConstraint:c];
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[self->edges addObject:c];
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}
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}
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for (y = 0; y < ycount; y++) {
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[set removeAllObjects];
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for (x = 0; x < xcount; x++)
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[set addObject:[NSNumber numberWithInt:gg[y][x]]];
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first = YES;
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for (number in set) {
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if ([number intValue] == -1)
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continue;
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gc = (gridChild *) [self->children objectAtIndex:[number intValue]];
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if (first) {
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firstView = [gc view];
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first = NO;
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continue;
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}
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c = mkConstraint([gc view], NSLayoutAttributeTop,
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NSLayoutRelationEqual,
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firstView, NSLayoutAttributeTop,
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1, 0,
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@"uiGrid row top edge constraint");
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[self addConstraint:c];
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[self->edges addObject:c];
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}
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}
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// TODO
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return;
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// now go through every row and column and extract SOME view from that row and column for the inner constraints
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// if it turns out that a row or column is totally empty, duplicate the one to the left (this has the effect of collapsing empty rows)
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// note that the edges cannot be empty because we built a smallest fitting rectangle way back in step 1
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colviews = (NSView **) uiAlloc(xcount * sizeof (NSView *), "NSView *[]");
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for (x = 0; x < xcount; x++) {
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for (y = 0; y < ycount; y++)
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if (gg[y][x] != -1) {
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gc = (gridChild *) [self->children objectAtIndex:gg[y][x]];
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colviews[x] = [gc view];
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break;
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}
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if (colviews[x] == nil)
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colviews[x] = colviews[x - 1];
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}
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rowviews = (NSView **) uiAlloc(ycount * sizeof (NSView *), "NSView *[]");
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for (y = 0; y < ycount; y++) {
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for (x = 0; x < xcount; x++)
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if (gg[y][x] != -1) {
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gc = (gridChild *) [self->children objectAtIndex:gg[y][x]];
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rowviews[y] = [gc view];
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break;
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}
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if (rowviews[y] == nil)
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rowviews[y] = rowviews[y - 1];
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}
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// now string all the views together
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for (gc in self->children) {
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if (gc.left != xmin) {
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c = mkConstraint([gc view], NSLayoutAttributeLeading,
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NSLayoutRelationEqual,
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colviews[(gc.left - 1) - xmin], NSLayoutAttributeTrailing,
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1, padding,
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@"uiGrid leading constraint");
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[self addConstraint:c];
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[self->inBetweens addObject:c];
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}
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if (gc.top != ymin) {
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c = mkConstraint([gc view], NSLayoutAttributeTop,
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NSLayoutRelationEqual,
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rowviews[(gc.top - 1) - ymin], NSLayoutAttributeBottom,
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1, padding,
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@"uiGrid top constraint");
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[self addConstraint:c];
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[self->inBetweens addObject:c];
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}
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if ((gc.left + gc.xspan) != xmax) {
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c = mkConstraint([gc view], NSLayoutAttributeTrailing,
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NSLayoutRelationEqual,
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colviews[(gc.left + gc.xspan) - xmin], NSLayoutAttributeLeading,
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1, -padding,
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@"uiGrid trailing constraint");
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[self addConstraint:c];
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[self->inBetweens addObject:c];
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}
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if ((gc.top + gc.yspan) != ymax) {
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c = mkConstraint([gc view], NSLayoutAttributeBottom,
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NSLayoutRelationEqual,
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rowviews[(gc.top + gc.yspan) - ymin], NSLayoutAttributeTop,
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1, -padding,
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@"uiGrid bottom constraint");
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[self addConstraint:c];
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[self->inBetweens addObject:c];
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}
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}
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// TODO make all expanding rows/columns the same height/width
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// and finally clean up
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uiFree(colviews);
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uiFree(rowviews);
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[set release];
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for (y = 0; y < ycount; y++)
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for (y = 0; y < ycount; y++) {
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uiFree(gg[y]);
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uiFree(gv[y]);
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}
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uiFree(gg);
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uiFree(gv);
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}
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- (void)append:(gridChild *)gc
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