+++ /dev/null
-#include "seaview.h"
-
-#include <cmath>
-
-#include <GL/glut.h>
-
-SeaView::SeaView(double distance, double azimuth, double altitude) :
- m_distance{distance},
- m_azimuth{azimuth},
- m_altitude{altitude}
-{
-}
-
-void SeaView::onMouseEvent(int button, int state, int x, int y)
-{
- if (button == 3 && state == 0) {
- m_distance += m_distance*DISTANCE_MULTIPLIER;
- glutPostRedisplay();
- }
- else if (button == 4 && state == 0) {
- m_distance -= m_distance*DISTANCE_MULTIPLIER;
- glutPostRedisplay();
- }
- else if (button == 0 && state == 0) {
- m_mouseDownPos[0] = x;
- m_mouseDownPos[1] = y;
- m_mouseDownAzimuth = m_azimuth;
- m_mouseDownAltitude = m_altitude;
- }
-}
-
-void SeaView::onMouseMove(int x, int y)
-{
- m_altitude =
- fmod(m_mouseDownAltitude +
- (double)((y - m_mouseDownPos[1]) *
- 2*M_PI / glutGet(GLUT_WINDOW_HEIGHT)),
- (double)(2*M_PI));
-
- m_azimuth =
- fmod(m_mouseDownAzimuth +
- (double)((x - m_mouseDownPos[0]) *
- 2*M_PI / glutGet(GLUT_WINDOW_WIDTH)),
- (double)(2*M_PI));
-
- glutPostRedisplay();
-}
-
-void SeaView::setupView() const
-{
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- const double eyePos[3] =
- {m_distance * cos(m_altitude) * sin(m_azimuth),
- m_distance * cos(m_altitude) * cos(m_azimuth),
- m_distance * sin(m_altitude)};
-
- gluLookAt(eyePos[0], eyePos[1], eyePos[2],
- 0, 0, 0,
- 0, 0, 1);
-}