87 lines
1.6 KiB
C++
87 lines
1.6 KiB
C++
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/*
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* Rect.cpp
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* Android
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*
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* Created on 10/14/05.
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* Copyright 2005 The Android Open Source Project
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*
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*/
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#include <ui/Rect.h>
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namespace android {
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inline int min(int a, int b) {
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return (a<b) ? a : b;
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}
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inline int max(int a, int b) {
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return (a>b) ? a : b;
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}
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void Rect::makeInvalid() {
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left = 0;
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top = 0;
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right = -1;
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bottom = -1;
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}
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bool Rect::operator < (const Rect& rhs) const
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{
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if (top<rhs.top) {
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return true;
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} else if (top == rhs.top) {
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if (left < rhs.left) {
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return true;
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} else if (left == rhs.left) {
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if (bottom<rhs.bottom) {
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return true;
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} else if (bottom == rhs.bottom) {
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if (right<rhs.right) {
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return true;
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}
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}
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}
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}
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return false;
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}
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Rect& Rect::offsetTo(int x, int y)
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{
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right -= left - x;
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bottom -= top - y;
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left = x;
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top = y;
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return *this;
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}
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Rect& Rect::offsetBy(int x, int y)
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{
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left += x;
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top += y;
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right+= x;
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bottom+=y;
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return *this;
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}
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Rect Rect::operator + (const Point& rhs) const
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{
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return Rect(left+rhs.x, top+rhs.y, right+rhs.x, bottom+rhs.y);
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}
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Rect Rect::operator - (const Point& rhs) const
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{
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return Rect(left-rhs.x, top-rhs.y, right-rhs.x, bottom-rhs.y);
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}
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bool Rect::intersect(const Rect& with, Rect* result) const
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{
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result->left = max(left, with.left);
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result->top = max(top, with.top);
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result->right = min(right, with.right);
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result->bottom = min(bottom, with.bottom);
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return !(result->isEmpty());
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}
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}; // namespace android
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