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//
// GTMGeometryUtils.m
//
// Copyright 2006-2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import "GTMGeometryUtils.h"
/// Align rectangles
//
// Args:
// alignee - rect to be aligned
// aligner - rect to be aligned to
// alignment - alignment to be applied to alignee based on aligner
NSRect GTMAlignRectangles(NSRect alignee, NSRect aligner, GTMRectAlignment alignment) {
switch (alignment) {
case GTMRectAlignTop:
alignee.origin.x = aligner.origin.x + (NSWidth(aligner) * .5f - NSWidth(alignee) * .5f);
alignee.origin.y = aligner.origin.y + NSHeight(aligner) - NSHeight(alignee);
break;
case GTMRectAlignTopLeft:
alignee.origin.x = aligner.origin.x;
alignee.origin.y = aligner.origin.y + NSHeight(aligner) - NSHeight(alignee);
break;
case GTMRectAlignTopRight:
alignee.origin.x = aligner.origin.x + NSWidth(aligner) - NSWidth(alignee);
alignee.origin.y = aligner.origin.y + NSHeight(aligner) - NSHeight(alignee);
break;
case GTMRectAlignLeft:
alignee.origin.x = aligner.origin.x;
alignee.origin.y = aligner.origin.y + (NSHeight(aligner) * .5f - NSHeight(alignee) * .5f);
break;
case GTMRectAlignBottomLeft:
alignee.origin.x = aligner.origin.x;
alignee.origin.y = aligner.origin.y;
break;
case GTMRectAlignBottom:
alignee.origin.x = aligner.origin.x + (NSWidth(aligner) * .5f - NSWidth(alignee) * .5f);
alignee.origin.y = aligner.origin.y;
break;
case GTMRectAlignBottomRight:
alignee.origin.x = aligner.origin.x + NSWidth(aligner) - NSWidth(alignee);
alignee.origin.y = aligner.origin.y;
break;
case GTMRectAlignRight:
alignee.origin.x = aligner.origin.x + NSWidth(aligner) - NSWidth(alignee);
alignee.origin.y = aligner.origin.y + (NSHeight(aligner) * .5f - NSHeight(alignee) * .5f);
break;
default:
case GTMRectAlignCenter:
alignee.origin.x = aligner.origin.x + (NSWidth(aligner) * .5f - NSWidth(alignee) * .5f);
alignee.origin.y = aligner.origin.y + (NSHeight(aligner) * .5f - NSHeight(alignee) * .5f);
break;
}
return alignee;
}
NSRect GTMScaleRectangleToSize(NSRect scalee, NSSize size, GTMScaling scaling) {
switch (scaling) {
case GTMScaleProportionally: {
CGFloat height = NSHeight(scalee);
CGFloat width = NSWidth(scalee);
if (isnormal(height) && isnormal(width) &&
(height > size.height || width > size.width)) {
CGFloat horiz = size.width / width;
CGFloat vert = size.height / height;
CGFloat newScale = horiz < vert ? horiz : vert;
scalee = GTMNSRectScale(scalee, newScale, newScale);
}
break;
}
case GTMScaleToFit:
scalee.size = size;
break;
case GTMScaleNone:
default:
// Do nothing
break;
}
return scalee;
}
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