295 lines
11 KiB
C++
295 lines
11 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 "coloredbar.h"
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#include "../rtengine/utils.h"
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ColoredBar::ColoredBar (eRTOrientation orient)
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{
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orientation = orient;
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dirty = true;
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this->x = this->y = this->w = this->h = 0;
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}
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/*
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* Redraw the bar to a Cairo::ImageSurface
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*/
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void ColoredBar::expose(Cairo::RefPtr<Cairo::ImageSurface> destSurface)
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{
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// look out if the Surface has to be redrawn
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if (!surfaceCreated() || !destSurface) {
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return;
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}
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draw();
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Gdk::Rectangle rect(x, y, w, h);
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copySurface(destSurface, &rect);
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}
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/*
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* Redraw the bar to a Gdk::Window
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*/
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void ColoredBar::expose(Glib::RefPtr<Gdk::Window> destWindow)
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{
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// look out if the Surface has to be redrawn
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if (!surfaceCreated() || !destWindow) {
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return;
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}
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draw();
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Gdk::Rectangle rect(x, y, w, h);
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copySurface(destWindow, &rect);
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}
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void ColoredBar::expose(const Cairo::RefPtr< Cairo::Context> &cr)
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{
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// look out if the Surface has to be redrawn
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if (!surfaceCreated()) {
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return;
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}
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draw();
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Gdk::Rectangle rect(x, y, w, h);
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copySurface(cr, &rect);
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}
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/*
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* Redraw the bar to a Gdk::Window
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*/
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void ColoredBar::expose(BackBuffer *backBuffer)
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{
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// look out if the Surface has to be redrawn
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if (!surfaceCreated() || !backBuffer) {
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return;
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}
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draw();
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Gdk::Rectangle rect(x, y, w, h);
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copySurface(backBuffer, &rect);
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}
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void ColoredBar::draw()
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{
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if (isDirty()) {
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Cairo::RefPtr<Cairo::Context> cr = getContext();
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// the bar has to be drawn to the Surface first
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if (!bgGradient.empty()) {
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// a gradient has been set, we use it
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cr->set_line_width(0.);
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// gradient background
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Cairo::RefPtr< Cairo::LinearGradient > bggradient;
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switch (orientation) {
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case (RTO_Left2Right):
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bggradient = Cairo::LinearGradient::create (0., 0., double(w), 0.);
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break;
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case (RTO_Right2Left):
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bggradient = Cairo::LinearGradient::create (double(w), 0., 0., 0.);
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break;
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case (RTO_Bottom2Top):
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bggradient = Cairo::LinearGradient::create (0., double(h), 0., 0.);
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break;
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case (RTO_Top2Bottom):
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default:
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bggradient = Cairo::LinearGradient::create (0., 0., 0., double(h));
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break;
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}
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for (std::vector<GradientMilestone>::iterator i = bgGradient.begin(); i != bgGradient.end(); ++i) {
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bggradient->add_color_stop_rgb (i->position, i->r, i->g, i->b);
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}
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cr->set_source (bggradient);
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cr->rectangle(0, 0, w, h);
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cr->fill();
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} else {
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// ask the ColorProvider to provide colors :) for each pixels
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if (colorProvider) {
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unsigned char *dst;
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unsigned char *surfaceData = surface->get_data();
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int surfW = getWidth();
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cr->set_antialias(Cairo::ANTIALIAS_NONE);
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cr->set_line_width(1.);
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switch (orientation) {
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case (RTO_Left2Right):
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for (int py = 0; py < h; ++py) {
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for (int px = 0; px < w; ++px) {
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double x_ = double( px);
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//double y_ = double((h-1)-py); unused
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double x01 = x_ / double(w - 1);
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double y01 = double(py) / double(h - 1);
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colorProvider->colorForValue (x01, y01, CCET_BACKGROUND, colorCallerId, this);
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rtengine::poke01_d(surfaceData, ccRed, ccGreen, ccBlue);
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}
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}
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break;
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case (RTO_Right2Left):
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for (int py = 0; py < h; ++py) {
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for (int px = 0; px < w; ++px) {
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//double x_ = double((w-1)-px); unused
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//double y_ = double((h-1)-py); unused
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double x01 = double(px) / double(w - 1);
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double y01 = double(py) / double(h - 1);
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colorProvider->colorForValue (x01, y01, CCET_BACKGROUND, colorCallerId, this);
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rtengine::poke01_d(surfaceData, ccRed, ccGreen, ccBlue);
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}
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}
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break;
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case (RTO_Bottom2Top):
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for (int py = 0; py < h; ++py) {
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for (int px = 0; px < w; ++px) {
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//double x_ = double((w-1)-px); unused
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//double y_ = double((h-1)-py); unused
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double x01 = double(px) / double(w - 1);
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double y01 = double(py) / double(h - 1);
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colorProvider->colorForValue (y01, x01, CCET_BACKGROUND, colorCallerId, this);
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rtengine::poke01_d(surfaceData, ccRed, ccGreen, ccBlue);
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}
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}
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break;
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case (RTO_Top2Bottom):
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default:
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for (int py = 0; py < h; ++py) {
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for (int px = 0; px < w; ++px) {
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double x_ = double( px);
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double y_ = double( py);
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double x01 = x_ / double(w - 1);
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double y01 = y_ / double(h - 1);
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colorProvider->colorForValue (y01, x01, CCET_BACKGROUND, colorCallerId, this);
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rtengine::poke01_d(surfaceData, ccRed, ccGreen, ccBlue);
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}
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}
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break;
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}
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/*
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unsigned char *dst;
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unsigned char *surfaceData = surface->get_data();
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int surfW = getWidth();
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cr->set_antialias(Cairo::ANTIALIAS_NONE);
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cr->set_line_width(1.);
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switch (orientation) {
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case (RTO_Left2Right):
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for (int py=0; py<h; ++py, ++py) {
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dst = surfaceData + ((y+py)*surfW+x)*4;
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for (int px=0; px<w; ++px, ++px) {
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double x_ = double( px);
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//double y_ = double((h-1)-py); unused
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double x01 = x_ /double(w-1);
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double y01 = double(py)/double(h-1);
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colorProvider->colorForValue (x01, y01, CCET_BACKGROUND, colorCallerId, this);
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rtengine::poke01_d(surfaceData, ccRed, ccGreen, ccBlue);
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}
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}
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break;
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case (RTO_Right2Left):
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for (int py=0; py<h; ++py, ++py) {
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dst = surfaceData + ((y+py)*surfW+x)*4;
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for (int px=0; px<w; ++px, ++px) {
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//double x_ = double((w-1)-px); unused
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//double y_ = double((h-1)-py); unused
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double x01 = double(px)/double(w-1);
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double y01 = double(py)/double(h-1);
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colorProvider->colorForValue (x01, y01, CCET_BACKGROUND, colorCallerId, this);
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rtengine::poke01_d(surfaceData, ccRed, ccGreen, ccBlue);
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}
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}
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break;
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case (RTO_Bottom2Top):
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for (int py=0; py<h; ++py, ++py) {
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dst = surfaceData + ((y+py)*surfW+x)*4;
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for (int px=0; px<w; ++px, ++px) {
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//double x_ = double((w-1)-px); unused
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//double y_ = double((h-1)-py); unused
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double x01 = double(px)/double(w-1);
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double y01 = double(py)/double(h-1);
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colorProvider->colorForValue (y01, x01, CCET_BACKGROUND, colorCallerId, this);
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rtengine::poke01_d(surfaceData, ccRed, ccGreen, ccBlue);
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}
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}
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break;
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case (RTO_Top2Bottom):
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default:
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for (int py=0; py<h; ++py, ++py) {
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dst = surfaceData + ((y+py)*surfW+x)*4;
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for (int px=0; px<w; ++px, ++px) {
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double x_ = double( px);
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double y_ = double( py);
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double x01 = x_/double(w-1);
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double y01 = y_/double(h-1);
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colorProvider->colorForValue (y01, x01, CCET_BACKGROUND, colorCallerId, this);
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rtengine::poke01_d(surfaceData, ccRed, ccGreen, ccBlue);
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}
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}
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break;
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}
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*/
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}
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}
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// has it been updated or not, we assume that the Surface has been correctly set (we don't handle allocation error)
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setDirty(false);
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}
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}
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void ColoredBar::setBgGradient (const std::vector<GradientMilestone> &milestones)
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{
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bgGradient = milestones;
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setDirty(true);
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}
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void ColoredBar::clearBgGradient ()
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{
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bgGradient.clear();
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setDirty(true);
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}
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bool ColoredBar::canGetColors()
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{
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return colorProvider != NULL || bgGradient.size() > 0;
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}
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