rawTherapee/rtengine/imagedimensions.cc

122 lines
2.7 KiB
C++

/*
* This file is part of RawTherapee.
*
* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
*
* RawTherapee is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* RawTherapee is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with RawTherapee. If not, see <https://www.gnu.org/licenses/>.
*/
#include "imagedimensions.h"
#include "rtengine.h"
PreviewProps::PreviewProps(int _x, int _y, int _width, int _height, int _skip) :
x(_x),
y(_y),
width(_width),
height(_height),
skip(_skip)
{
}
int PreviewProps::getX() const
{
return x;
}
int PreviewProps::getY() const
{
return y;
}
int PreviewProps::getWidth() const
{
return width;
}
int PreviewProps::getHeight() const
{
return height;
}
int PreviewProps::getSkip() const
{
return skip;
}
void PreviewProps::set (int x, int y, int w, int h, int skip) {
this->x = x;
this->y = y;
this->width = w;
this->height = h;
this->skip = skip;
}
ImageDimensions::ImageDimensions() :
width(-1),
height(-1)
{
}
void ImageDimensions::transform(const PreviewProps& pp, int tran, int& sx1, int& sy1, int& sx2, int& sy2) const
{
int sw = width;
int sh = height;
if ((tran & TR_ROT) == TR_R90 || (tran & TR_ROT) == TR_R270) {
std::swap(sw, sh);
}
int ppx = pp.getX();
int ppy = pp.getY();
if (tran & TR_HFLIP) {
ppx = sw - pp.getX() - pp.getWidth();
}
if (tran & TR_VFLIP) {
ppy = sh - pp.getY() - pp.getHeight();
}
sx1 = ppx;
sy1 = ppy;
sx2 = ppx + pp.getWidth();
sy2 = ppy + pp.getHeight();
if ((tran & TR_ROT) == TR_R180) {
sx1 = width - ppx - pp.getWidth();
sy1 = height - ppy - pp.getHeight();
sx2 = sx1 + pp.getWidth();
sy2 = sy1 + pp.getHeight();
} else if ((tran & TR_ROT) == TR_R90) {
sx1 = ppy;
sy1 = height - ppx - pp.getWidth();
sx2 = sx1 + pp.getHeight();
sy2 = sy1 + pp.getWidth();
} else if ((tran & TR_ROT) == TR_R270) {
sx1 = width - ppy - pp.getHeight();
sy1 = ppx;
sx2 = sx1 + pp.getHeight();
sy2 = sy1 + pp.getWidth();
}
if (sx1 < 0) {
sx1 = 0;
}
if (sy1 < 0) {
sy1 = 0;
}
}