apps/size_constraints.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "apps/size_constraints.h"
   6
   7 #include <algorithm>
   8
   9 namespace apps {
  10
  11 SizeConstraints::SizeConstraints()
  12     : maximum_size_(kUnboundedSize, kUnboundedSize) {}
  13
  14 SizeConstraints::SizeConstraints(const gfx::Size& min_size,
  15                                  const gfx::Size& max_size)
  16     : minimum_size_(min_size), maximum_size_(max_size) {}
  17
  18 SizeConstraints::~SizeConstraints() {}
  19
  20 gfx::Size SizeConstraints::ClampSize(gfx::Size size) const {
  21   const gfx::Size max_size = GetMaximumSize();
  22   if (max_size.width() != kUnboundedSize)
  23     size.set_width(std::min(size.width(), GetMaximumSize().width()));
  24   if (max_size.height() != kUnboundedSize)
  25     size.set_height(std::min(size.height(), GetMaximumSize().height()));
  26   size.SetToMax(GetMinimumSize());
  27   return size;
  28 }
  29
  30 bool SizeConstraints::HasMinimumSize() const {
  31   return GetMinimumSize().width() != kUnboundedSize ||
  32          GetMinimumSize().height() != kUnboundedSize;
  33 }
  34
  35 bool SizeConstraints::HasMaximumSize() const {
  36   const gfx::Size max_size = GetMaximumSize();
  37   return max_size.width() != kUnboundedSize ||
  38          max_size.height() != kUnboundedSize;
  39 }
  40
  41 bool SizeConstraints::HasFixedSize() const {
  42   return !GetMinimumSize().IsEmpty() && GetMinimumSize() == GetMaximumSize();
  43 }
  44
  45 gfx::Size SizeConstraints::GetMinimumSize() const {
  46   return minimum_size_;
  47 }
  48
  49 gfx::Size SizeConstraints::GetMaximumSize() const {
  50   return gfx::Size(
  51       maximum_size_.width() == kUnboundedSize
  52           ? kUnboundedSize
  53           : std::max(maximum_size_.width(), minimum_size_.width()),
  54       maximum_size_.height() == kUnboundedSize
  55           ? kUnboundedSize
  56           : std::max(maximum_size_.height(), minimum_size_.height()));
  57 }
  58
  59 void SizeConstraints::set_minimum_size(const gfx::Size& min_size) {
  60   minimum_size_ = min_size;
  61 }
  62
  63 void SizeConstraints::set_maximum_size(const gfx::Size& max_size) {
  64   maximum_size_ = max_size;
  65 }
  66
  67 }  // namespace apps