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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"
float GTMGetMainDisplayHeight(void) {
float height = 0;
NSArray *screens = [NSScreen screens];
// We may have a headless machine without any screens. In this case we
// return 0.
if ([screens count] > 0) {
height = NSHeight([(NSScreen*)[screens objectAtIndex: 0] frame]);
}
return height;
}
// Rect conversion routines.
HIRect GTMGlobalNSRectToHIRect(NSRect inRect) {
HIRect theRect;
theRect.origin = GTMGlobalNSPointToHIPoint(inRect.origin);
theRect.origin.y -= inRect.size.height;
theRect.size = CGSizeMake(inRect.size.width, inRect.size.height);
return theRect;
}
HIRect GTMRectToHIRect(Rect inRect) {
HIRect theRect;
theRect.origin = CGPointMake(inRect.left,inRect.top);
theRect.size = CGSizeMake(inRect.right - inRect.left, inRect.bottom - inRect.top);
return theRect;
}
NSRect GTMGlobalHIRectToNSRect(HIRect inRect) {
NSRect theRect;
theRect.origin = GTMGlobalHIPointToNSPoint(inRect.origin);
theRect.origin.y -= inRect.size.height;
theRect.size = NSMakeSize(inRect.size.width, inRect.size.height);
return theRect;
}
Rect GTMHIRectToRect(HIRect inRect) {
Rect theRect;
theRect.left = inRect.origin.x;
theRect.right = ceilf(inRect.origin.x + inRect.size.width);
theRect.top = inRect.origin.y;
theRect.bottom = ceilf(inRect.origin.y + inRect.size.height);
return theRect;
}
/// 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, NSImageAlignment alignment) {
switch (alignment) {
case NSImageAlignTop:
alignee.origin.x = aligner.origin.x + (NSWidth(aligner) * .5f - NSWidth(alignee) * .5f);
alignee.origin.y = aligner.origin.y + NSHeight(aligner) - NSHeight(alignee);
break;
case NSImageAlignTopLeft:
alignee.origin.x = aligner.origin.x;
alignee.origin.y = aligner.origin.y + NSHeight(aligner) - NSHeight(alignee);
break;
case NSImageAlignTopRight:
alignee.origin.x = aligner.origin.x + NSWidth(aligner) - NSWidth(alignee);
alignee.origin.y = aligner.origin.y + NSHeight(aligner) - NSHeight(alignee);
break;
case NSImageAlignLeft:
alignee.origin.x = aligner.origin.x;
alignee.origin.y = aligner.origin.y + (NSHeight(aligner) * .5f - NSHeight(alignee) * .5f);
break;
case NSImageAlignBottomLeft:
alignee.origin.x = aligner.origin.x;
alignee.origin.y = aligner.origin.y;
break;
case NSImageAlignBottom:
alignee.origin.x = aligner.origin.x + (NSWidth(aligner) * .5f - NSWidth(alignee) * .5f);
alignee.origin.y = aligner.origin.y;
break;
case NSImageAlignBottomRight:
alignee.origin.x = aligner.origin.x + NSWidth(aligner) - NSWidth(alignee);
alignee.origin.y = aligner.origin.y;
break;
case NSImageAlignRight:
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 NSImageAlignCenter:
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, NSImageScaling scaling) {
switch (scaling) {
case NSScaleProportionally: {
float height = NSHeight(scalee);
float width = NSWidth(scalee);
if (isnormal(height) && isnormal(width) &&
(height > size.height || width > size.width)) {
float horiz = size.width / width;
float vert = size.height / height;
float newScale = horiz < vert ? horiz : vert;
scalee = GTMNSRectScale(scalee, newScale, newScale);
}
break;
}
case NSScaleToFit:
scalee.size = size;
break;
case NSScaleNone:
default:
// Do nothing
break;
}
return scalee;
}
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