rawTherapee/rtgui/guiutils.cc
2010-01-01 11:52:33 +00:00

197 lines
7.5 KiB
C++
Executable File

/*
* 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 <http://www.gnu.org/licenses/>.
*/
#include <guiutils.h>
#include <options.h>
#include <utils.h>
bool removeIfThere (Gtk::Container* cont, Gtk::Widget* w, bool increference) {
Glib::ListHandle<Gtk::Widget*> list = cont->get_children ();
Glib::ListHandle<Gtk::Widget*>::iterator i = list.begin ();
for (; i!=list.end() && *i!=w; i++);
if (i!=list.end()) {
if (increference)
w->reference ();
cont->remove (*w);
return true;
}
else
return false;
}
void thumbInterp (const unsigned char* src, int sw, int sh, unsigned char* dst, int dw, int dh) {
if (options.thumbInterp==0)
rtengine::nearestInterp (src, sw, sh, dst, dw, dh);
else if (options.thumbInterp==1)
rtengine::bilinearInterp (src, sw, sh, dst, dw, dh);
}
Glib::ustring removeExtension (const Glib::ustring& filename) {
Glib::ustring bname = Glib::path_get_basename(filename);
int lastdot = bname.find_last_of ('.');
if (lastdot!=bname.npos)
return filename.substr (0, filename.size()-(bname.size()-lastdot));
else
return filename;
}
Glib::ustring getExtension (const Glib::ustring& filename) {
Glib::ustring bname = Glib::path_get_basename(filename);
int lastdot = bname.find_last_of ('.');
if (lastdot!=bname.npos)
return filename.substr (filename.size()-(bname.size()-lastdot)+1, filename.npos);
else
return "";
}
void drawCrop (Cairo::RefPtr<Cairo::Context> cr, int imx, int imy, int imw, int imh, int startx, int starty, double scale, const rtengine::procparams::CropParams& cparams) {
cr->set_line_width (1.0);
cr->rectangle (imx+0.5, imy+0.5, imw, imh);
cr->clip ();
double c1x = (cparams.x-startx)*scale;
double c1y = (cparams.y-starty)*scale;
double c2x = (cparams.x+cparams.w-1-startx)*scale;
double c2y = (cparams.y+cparams.h-1-starty)*scale;
cr->set_source_rgba (0, 0, 0, 2.0/3.0);
cr->rectangle (imx+0.5, imy+0.5, imw, c1y);
cr->rectangle (imx+0.5, imy+0.5+c2y, imw, imh-c2y);
cr->rectangle (imx+0.5, imy+0.5+c1y, c1x, c2y-c1y+1);
cr->rectangle (imx+0.5+c2x, imy+0.5+c1y, imw-c2x, c2y-c1y+1);
cr->fill ();
// rectangle around the cropped area and guides
if (cparams.guide!="None") {
double rectx1 = c1x + imx + 0.5;
double recty1 = c1y + imy + 0.5;
double rectx2 = c2x + imx + 0.5;
double recty2 = c2y + imy + 0.5;
cr->set_line_width (1.0);
cr->set_source_rgb (1.0, 1.0, 1.0);
cr->move_to (rectx1, recty1);
cr->line_to (rectx2, recty1);
cr->line_to (rectx2, recty2);
cr->line_to (rectx1, recty2);
cr->line_to (rectx1, recty1);
cr->stroke ();
cr->set_source_rgb (0.0, 0.0, 0.0);
std::valarray<double> ds (1);
ds[0] = 4;
cr->set_dash (ds, 0);
cr->move_to (rectx1, recty1);
cr->line_to (rectx2, recty1);
cr->line_to (rectx2, recty2);
cr->line_to (rectx1, recty2);
cr->line_to (rectx1, recty1);
cr->stroke ();
ds.resize (0);
cr->set_dash (ds, 0);
if (cparams.guide!="Rule of diagonals") {
// draw guide lines
std::vector<double> horiz_ratios;
std::vector<double> vert_ratios;
if (cparams.guide=="Rule of thirds") {
horiz_ratios.push_back (1.0/3.0);
horiz_ratios.push_back (2.0/3.0);
vert_ratios.push_back (1.0/3.0);
vert_ratios.push_back (2.0/3.0);
}
else if (cparams.guide=="Harmonic means 1") {
horiz_ratios.push_back (1.0-0.618);
vert_ratios.push_back (1.0-0.618);
}
else if (cparams.guide=="Harmonic means 2") {
horiz_ratios.push_back (0.618);
vert_ratios.push_back (1.0-0.618);
}
else if (cparams.guide=="Harmonic means 3") {
horiz_ratios.push_back (1.0-0.618);
vert_ratios.push_back (0.618);
}
else if (cparams.guide=="Harmonic means 4") {
horiz_ratios.push_back (0.618);
vert_ratios.push_back (0.618);
}
for (int i=0; i<vert_ratios.size(); i++) {
cr->set_source_rgb (1.0, 1.0, 1.0);
cr->move_to (rectx1 + (rectx2-rectx1) * vert_ratios[i], recty1);
cr->line_to (rectx1 + (rectx2-rectx1) * vert_ratios[i], recty2);
cr->move_to (rectx1, recty1 + (recty2-recty1) * horiz_ratios[i]);
cr->line_to (rectx2, recty1 + (recty2-recty1) * horiz_ratios[i]);
cr->stroke ();
cr->set_source_rgb (0.0, 0.0, 0.0);
std::valarray<double> ds (1);
ds[0] = 4;
cr->set_dash (ds, 0);
cr->move_to (rectx1 + (rectx2-rectx1) * vert_ratios[i], recty1);
cr->line_to (rectx1 + (rectx2-rectx1) * vert_ratios[i], recty2);
cr->move_to (rectx1, recty1 + (recty2-recty1) * horiz_ratios[i]);
cr->line_to (rectx2, recty1 + (recty2-recty1) * horiz_ratios[i]);
cr->stroke ();
ds.resize (0);
cr->set_dash (ds, 0);
}
}
else {
int corners_from[4][2];
int corners_to[4][2];
int mindim = MIN (rectx2-rectx1+1, recty2-recty1+1);
corners_from[0][0] = rectx1;
corners_from[0][1] = recty1;
corners_to[0][0] = rectx1 + mindim;
corners_to[0][1] = recty1 + mindim;
corners_from[1][0] = rectx1;
corners_from[1][1] = recty2;
corners_to[1][0] = rectx1 + mindim;
corners_to[1][1] = recty2 - mindim;
corners_from[2][0] = rectx2;
corners_from[2][1] = recty1;
corners_to[2][0] = rectx2 - mindim;
corners_to[2][1] = recty1 + mindim;
corners_from[3][0] = rectx2;
corners_from[3][1] = recty2;
corners_to[3][0] = rectx2 - mindim;
corners_to[3][1] = recty2 - mindim;
for (int i=0; i<4; i++) {
cr->set_source_rgb (1.0, 1.0, 1.0);
cr->move_to (corners_from[i][0], corners_from[i][1]);
cr->line_to (corners_to[i][0], corners_to[i][1]);
cr->stroke ();
cr->set_source_rgb (0.0, 0.0, 0.0);
std::valarray<double> ds (1);
ds[0] = 4;
cr->set_dash (ds, 0);
cr->move_to (corners_from[i][0], corners_from[i][1]);
cr->line_to (corners_to[i][0], corners_to[i][1]);
cr->stroke ();
ds.resize (0);
cr->set_dash (ds, 0);
}
}
}
cr->reset_clip ();
}