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/*
* Copyright (C) 2009 The Android Open Source Project
*
* 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.
*/
#include <ui/Rect.h>
namespace android {
static inline int32_t min(int32_t a, int32_t b) {
return (a<b) ? a : b;
}
static inline int32_t max(int32_t a, int32_t b) {
return (a>b) ? a : b;
}
void Rect::makeInvalid() {
left = 0;
top = 0;
right = -1;
bottom = -1;
}
bool Rect::operator < (const Rect& rhs) const
{
if (top<rhs.top) {
return true;
} else if (top == rhs.top) {
if (left < rhs.left) {
return true;
} else if (left == rhs.left) {
if (bottom<rhs.bottom) {
return true;
} else if (bottom == rhs.bottom) {
if (right<rhs.right) {
return true;
}
}
}
}
return false;
}
Rect& Rect::offsetTo(int32_t x, int32_t y)
{
right -= left - x;
bottom -= top - y;
left = x;
top = y;
return *this;
}
Rect& Rect::offsetBy(int32_t x, int32_t y)
{
left += x;
top += y;
right+= x;
bottom+=y;
return *this;
}
const Rect Rect::operator + (const Point& rhs) const
{
const Rect result(left+rhs.x, top+rhs.y, right+rhs.x, bottom+rhs.y);
return result;
}
const Rect Rect::operator - (const Point& rhs) const
{
const Rect result(left-rhs.x, top-rhs.y, right-rhs.x, bottom-rhs.y);
return result;
}
bool Rect::intersect(const Rect& with, Rect* result) const
{
result->left = max(left, with.left);
result->top = max(top, with.top);
result->right = min(right, with.right);
result->bottom = min(bottom, with.bottom);
return !(result->isEmpty());
}
}; // namespace android
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