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/**
*
* This file is part of Tulip (www.tulip-software.org)
*
* Authors: David Auber and the Tulip development Team
* from LaBRI, University of Bordeaux
*
* Tulip is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* Tulip 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.
*
*/
#include "PixelOrientedMediator.h"
namespace pocore {
PixelOrientedMediator::PixelOrientedMediator(LayoutFunction *layout, ColorFunction *color)
: layout(layout), color(color), trans1(new FishEyesScreen()), trans2(new UniformDeformationScreen()),
zoomBak(1), translationXBak(0), translationYBak(0), fishEyeRadiusBak(0),
centerItem((unsigned int) (-1)) {
zoom = 1.0;
totalMove[0] = 0;
totalMove[1] = 0;
totalFishMove[0] = 0;
totalFishMove[1] = 0;
fishTranslation[0] = 0;
fishTranslation[1] = 0;
}
PixelOrientedMediator::~PixelOrientedMediator() {}
Vec2f PixelOrientedMediator::screenToScene(const pocore::Vec2i &p) {
Vec2f q;
q[0] = double(p[0]) - double(imageSize[0] / 2.);
q[1] = double(p[1]) - double(imageSize[1] / 2.);
return trans2->unproject(trans1->unproject(q));
}
Vec2i PixelOrientedMediator::sceneToScreen(const pocore::Vec2i &p) {
Vec2f q;
q[0] = double(p[0]);
q[1] = double(p[1]);
Vec2f res1 = trans1->project(trans2->project(q));
res1[0] += imageSize[0] / 2.0;
res1[1] += imageSize[1] / 2.0;
Vec2i result;
result[0] = (int) rint(res1[0]);
result[1] = (int) rint(res1[1]);
return result;
}
void PixelOrientedMediator::changeZoom(int i) {
if (i < 50) {
zoom = double(i) / 50.;
trans2->setZoom(double(i) / 50.);
}
else {
zoom = double(i) - 49.;
trans2->setZoom(double(i) - 49.);
}
}
void PixelOrientedMediator::backupScreenFunctionsParameters() {
zoomBak = trans2->getZoom();
trans2->getTranslation(translationXBak, translationYBak);
fishEyeRadiusBak = trans1->getRadius();
}
void PixelOrientedMediator::setScreenFunctionsParameters(double zoom, double translationX, double translationY, double fishEyeRadius) {
trans2->setZoom(zoom);
trans2->setTranslation(translationX, translationY);
trans1->setRadius(fishEyeRadius);
}
void PixelOrientedMediator::restoreScreenFunctionsParameters() {
trans2->setZoom(zoomBak);
trans2->setTranslation(translationXBak, translationYBak);
trans1->setRadius(fishEyeRadiusBak);
}
void PixelOrientedMediator::setLastMousePosition(const int x, const int y) {
int yScreen = imageSize[1] - y;
lastMousePosition[0] = x;
lastMousePosition[1] = yScreen;
}
void PixelOrientedMediator::updateFishEyePosition(const int x, const int y, DimensionBase *data) {
int yScreen = imageSize[1] - y;
if (lastMousePosition[0] == x && lastMousePosition[1] == yScreen) {
totalFishMove[0] = 0;
totalFishMove[1] = 0;
fishTranslation[0] = 0;
fishTranslation[1] = 0;
Vec2i point;
point[0] = x;
point[1] = y;
Vec2f pos = screenToScene(point);
point[0] = (int) rint(pos[0]);
point[1] = (int) rint(pos[1]);
centerItem = data->getItemIdAtRank(layout->unproject(point));
fishCenter = trans2->project(pos);
trans1->setCenter(fishCenter[0], fishCenter[1]);
}
else {
totalMove[0] += (int) ((lastMousePosition[0] - x) / zoom);
totalMove[1] -= (int) ((lastMousePosition[1] - yScreen) / zoom);
totalFishMove[0] += lastMousePosition[0] - x;
totalFishMove[1] += lastMousePosition[1] - yScreen;
}
}
void PixelOrientedMediator::translateFishEye(const int x, const int y) {
int yScreen = imageSize[1] - y;
// trans2->setTranslation((totalMove[0] + (lastMousePosition[0] - x) / zoom),
// (totalMove[1] - (lastMousePosition[1] - yScreen) / zoom));
fishTranslation[0] = -((totalFishMove[0] + lastMousePosition[0] - x));
fishTranslation[1] = ((totalFishMove[1] + lastMousePosition[1] - yScreen));
trans1->setCenter(fishCenter[0] - ((totalFishMove[0] + lastMousePosition[0] - x)), fishCenter[1] + ((totalFishMove[1] + lastMousePosition[1] - yScreen)));
}
unsigned int PixelOrientedMediator::getRankForPixelPos(Vec2i pos) {
Vec2f fPos = screenToScene(pos);
Vec2i fPosI;
fPosI[0] = (int) rint(fPos[0]);
fPosI[1] = (int) rint(fPos[1]);
return layout->unproject(fPosI);
}
RGBA PixelOrientedMediator::getColorForPixelAtPos(Vec2i pos, DimensionBase *data, bool withFishEye) {
RGBA backgroundColor;
backgroundColor.fill(255);
Vec2f fPos = screenToScene(pos);
Vec2i fPosI;
fPosI[0] = (int) rint(fPos[0]);
fPosI[1] = (int) rint(fPos[1]);
unsigned int rank = layout->unproject(fPosI);
if (rank < data->numberOfItems()) {
RGBA curColor = color->getColor(data->getItemValueAtRank(rank), data->getItemIdAtRank(rank));
if (withFishEye) {
Vec2f fPosIf;
fPosIf[0] = fPosI[0];
fPosIf[1] = fPosI[1];
Vec2f delta = fPos - fPosIf;
double dist = delta.norm();
Vec2f tmp;
tmp[0] = pos[0] - double(imageSize[0]) / 2. - fishTranslation[0];
tmp[1] = pos[1] - double(imageSize[0]) / 2. - fishTranslation[1];
if ((fishCenter - tmp).norm() < 70.) {
for (unsigned int i = 0; i < 3; ++i) {
double a = -double(curColor[i]);
double b = curColor[i];
curColor[i] = (unsigned char) (a * dist * dist + b);
}
}
}
return curColor;
}
else {
return backgroundColor;
}
}
Vec2i PixelOrientedMediator::getPixelPosForRank(const unsigned int rank) {
return sceneToScreen(layout->project(rank));
}
}
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