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