urho3d/Engine/Math/Rect.cpp

//
// Urho3D Engine
// Copyright (c) 2008-2011 Lasse Öörni
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

#include "Precompiled.h"
#include "Rect.h"

#include <cstdio>

const Rect Rect::FULL(-1.0f, -1.0f, 1.0f, 1.0f);
const Rect Rect::POSITIVE(0.0f, 0.0f, 1.0f, 1.0f);
const Rect Rect::ZERO(0.0f, 0.0f, 0.0f, 0.0f);

const IntRect IntRect::ZERO(0, 0, 0, 0);

String Rect::ToString() const
{
    char tempBuffer[CONVERSION_BUFFER_LENGTH];
    sprintf(tempBuffer, "%g %g %g %g", min_.x_, min_.y_, max_.x_, max_.y_);
    return String(tempBuffer);
}

String IntRect::ToString() const
{
    char tempBuffer[CONVERSION_BUFFER_LENGTH];
    sprintf(tempBuffer, "%d %d %d %d", left_, top_, right_, bottom_);
    return String(tempBuffer);
}

void Rect::Clip(const Rect& rect)
{
    if (rect.min_.x_ > min_.x_)
        min_.x_ = rect.min_.x_;
    if (rect.max_.x_ < max_.x_)
        max_.x_ = rect.max_.x_;
    if (rect.min_.y_ > min_.y_)
        min_.y_ = rect.min_.y_;
    if (rect.max_.y_ < max_.y_)
        max_.y_ = rect.max_.y_;
    
    float temp;
    if (min_.x_ > max_.x_)
    {
        temp = min_.x_;
        min_.x_ = max_.x_;
        max_.x_ = temp;
    }
    if (min_.y_ > max_.y_)
    {
        temp = min_.y_;
        min_.y_ = max_.y_;
        max_.y_ = temp;
    }
}