diff options
Diffstat (limited to 'src/sq_glwidget_helpers.cpp')
| -rw-r--r-- | src/sq_glwidget_helpers.cpp | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/src/sq_glwidget_helpers.cpp b/src/sq_glwidget_helpers.cpp new file mode 100644 index 0000000..0dd96c0 --- /dev/null +++ b/src/sq_glwidget_helpers.cpp @@ -0,0 +1,264 @@ +/*************************************************************************** + sq_glwidget_helpers.cpp - description + ------------------- + begin : ðÎÄ îÏÑ 7 2005 + copyright : (C) 2005 by Baryshev Dmitry + email : ksquirrel.iv@gmail.com + ***************************************************************************/ + +/*************************************************************************** + * * + * This program 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 2 of the License, or * + * (at your option) any later version. * + * * + ***************************************************************************/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <tqwmatrix.h> +#include <tqrect.h> +#include <tqpoint.h> +#include <tqpointarray.h> + +#include <algorithm> +#include <cstdlib> + +#include <tdetoolbar.h> + +#include <ksquirrel-libs/fmt_defs.h> + +#ifdef SQ_HAVE_KEXIF +#include <libkexif/kexifdata.h> +#endif + +#include "sq_glwidget_helpers.h" + +SQ_ToolButtonPopup::SQ_ToolButtonPopup(const TQPixmap &pix, const TQString &textLabel, TDEToolBar *parent) + : TDEToolBarButton(pix, -1, parent, 0, textLabel) +{ + setFixedWidth(SQ_ToolButton::fixedWidth()); +} + +SQ_ToolButtonPopup::~SQ_ToolButtonPopup() +{} + +SQ_ToolButton::SQ_ToolButton(const TQIconSet &iconSet, const TQString &textLabel, + TQObject *receiver, const char *slot, TDEToolBar *parent, const char *name) + : TQToolButton(iconSet, textLabel, TQString(), receiver, slot, parent, name) +{ + setFixedWidth(SQ_ToolButton::fixedWidth()); +} + +SQ_ToolButton::~SQ_ToolButton() +{} + +int SQ_GLHelpers::roundAngle(int curangle) +{ + int sign = (curangle < 0 ? -1 : 1); + curangle = std::abs(curangle); + + if((curangle > 0 && curangle < 45) || (curangle >= 315 && curangle < 360)) + curangle = 0; + else if(curangle >= 45 && curangle < 135) + curangle = 90; + else if(curangle >= 135 && curangle < 225) + curangle = 180; + else if(curangle >= 225 && curangle < 315) + curangle = 270; + + curangle *= sign; + + return curangle; +} + +void SQ_GLHelpers::subRotation(TQWMatrix &wm, int curangle, int orient) +{ + curangle = SQ_GLHelpers::roundAngle(curangle); + +#ifdef SQ_HAVE_KEXIF + switch(orient) + { + case KExifData::ROT_180: curangle -= 180; break; + case KExifData::ROT_90_HFLIP: + case KExifData::ROT_90: + case KExifData::ROT_90_VFLIP: curangle -= 90; break; + case KExifData::ROT_270: curangle -= 270; break; + + default: ; + } +#endif + + switch(curangle) + { + case -180: + case 180: wm.rotate(180); break; + + case -270: + case 90: wm.rotate(90); break; + + case -90: + case 270: wm.rotate(270); break; + + default: ; + } +} + +bool SQ_GLHelpers::normalizeSelection(int &sx, int &sy, int &sw, int &sh, int w, int h, const TQWMatrix &matr, int curangle, int orient) +{ + TQWMatrix wm = matr; + + SQ_GLHelpers::subRotation(wm, curangle, orient); + + if(!wm.isIdentity()) + { + int ax = -w/2 + sx; + int ay = h/2 - sy; + + TQPointArray pa(4), pb; + + pa.setPoint(0, ax, ay-sh); + pa.setPoint(1, ax+sw, ay-sh); + pa.setPoint(2, ax+sw, ay); + pa.setPoint(3, ax, ay); + + pb = wm.map(pa); + + int fx, fy, fx2, fy2; + fx = std::min(std::min(pb.point(0).x(), pb.point(1).x()), std::min(pb.point(2).x(), pb.point(3).x())); + fy = std::max(std::max(pb.point(0).y(), pb.point(1).y()), std::max(pb.point(2).y(), pb.point(3).y())); + + fx2 = std::max(std::max(pb.point(0).x(), pb.point(1).x()), std::max(pb.point(2).x(), pb.point(3).x())); + fy2 = std::min(std::min(pb.point(0).y(), pb.point(1).y()), std::min(pb.point(2).y(), pb.point(3).y())); + + sx = fx; + sy = fy; + sw = fx2 - fx; + sh = fy - fy2; + + sx += w/2; + sy = h/2-sy; + } + + if(sx > w || sy > h || sx + sw < 0 || sy + sh < 0) + return false; + + if(sx < 0) { sw = sw+sx; sx = 0; } + if(sy < 0) { sh = sh+sy; sy = 0; } + + if(sx + sw > w) sw = w - sx; + if(sy + sh > h) sh = h - sy; + + return (sw && sh); +} + +void SQ_GLHelpers::scanLine0(RGBA *data, RGBA *scan, int rw, int w, int h, int y, int flip) +{ + if(flip == 1) + { + data = data + rw*y + w-1; + + for(int i = 0;i < w;i++) + { + *scan = *data; + + scan++; + data--; + } + } + else if(flip == 2) + { + data = data + rw*(h-1-y); + + for(int i = 0;i < w;i++) + { + *scan = *data; + + scan++; + data++; + } + } + else + memcpy(scan, data + rw*y, w * sizeof(RGBA)); +} + +void SQ_GLHelpers::scanLine90(RGBA *data, RGBA *scan, int rw, int w, int h, int y, int flip) +{ + if(flip == 2) + { + data = data + y; + + for(int i = 0;i < h;i++) + { + *scan = *data; + + scan++; + data += rw; + } + } + else + { + data = flip == 1 ? (data + rw*(h-1) + w-y-1) : (data + rw*(h-1) + y); + + for(int i = 0;i < h;i++) + { + *scan = *data; + + scan++; + data -= rw; + } + } +} + +void SQ_GLHelpers::scanLine180(RGBA *data, RGBA *scan, int rw, int w, int h, int y, int flip) +{ + if(flip == 1) + { + data = data + rw*(h-1-y); + + memcpy(scan, data, w * sizeof(RGBA)); + } + else + { + data = flip == 2 ? (data + rw*y + w-1) : (data + rw*(h-1-y) + w-1); + + for(int i = 0;i < w;i++) + { + *scan = *data; + + scan++; + data--; + } + } +} + +void SQ_GLHelpers::scanLine270(RGBA *data, RGBA *scan, int rw, int w, int h, int y, int flip) +{ + if(flip == 2) + { + data = data + rw*(h-1) + w-y-1; + + for(int i = 0;i < h;i++) + { + *scan = *data; + + scan++; + data -= rw; + } + } + else + { + data = flip == 1 ? (data + y) : (data + w-y-1); + + for(int i = 0;i < h;i++) + { + *scan = *data; + + scan++; + data += rw; + } + } +} |