87 lines
1.6 KiB
C++
87 lines
1.6 KiB
C++
/*
|
|
* Rect.cpp
|
|
* Android
|
|
*
|
|
* Created on 10/14/05.
|
|
* Copyright 2005 The Android Open Source Project
|
|
*
|
|
*/
|
|
|
|
#include <ui/Rect.h>
|
|
|
|
namespace android {
|
|
|
|
inline int min(int a, int b) {
|
|
return (a<b) ? a : b;
|
|
}
|
|
|
|
inline int max(int a, int 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(int x, int y)
|
|
{
|
|
right -= left - x;
|
|
bottom -= top - y;
|
|
left = x;
|
|
top = y;
|
|
return *this;
|
|
}
|
|
|
|
Rect& Rect::offsetBy(int x, int y)
|
|
{
|
|
left += x;
|
|
top += y;
|
|
right+= x;
|
|
bottom+=y;
|
|
return *this;
|
|
}
|
|
|
|
Rect Rect::operator + (const Point& rhs) const
|
|
{
|
|
return Rect(left+rhs.x, top+rhs.y, right+rhs.x, bottom+rhs.y);
|
|
}
|
|
|
|
Rect Rect::operator - (const Point& rhs) const
|
|
{
|
|
return Rect(left-rhs.x, top-rhs.y, right-rhs.x, bottom-rhs.y);
|
|
}
|
|
|
|
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
|