mirror of https://github.com/vitalif/openscad
139 lines
3.2 KiB
C++
139 lines
3.2 KiB
C++
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/*
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* OpenSCAD (www.openscad.at)
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* Copyright (C) 2009 Clifford Wolf <clifford@clifford.at>
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "openscad.h"
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#include <QWheelEvent>
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#include <QMouseEvent>
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#define FAR_FAR_AWAY 100000.0
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GLView::GLView(QWidget *parent) : QGLWidget(parent)
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{
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viewer_distance = 10;
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object_rot_y = 0;
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object_rot_z = 0;
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mouse_drag_active = false;
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last_mouse_x = 0;
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last_mouse_y = 0;
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renderfunc = NULL;
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renderfunc_vp = NULL;
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setMouseTracking(true);
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}
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void GLView::initializeGL()
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{
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glEnable(GL_DEPTH_TEST);
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glDepthRange(-FAR_FAR_AWAY, +FAR_FAR_AWAY);
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glClearColor(1.0, 1.0, 0.9, 0.0);
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}
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void GLView::resizeGL(int w, int h)
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{
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glViewport(0, 0, (GLint)w, (GLint)h);
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}
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void GLView::paintGL()
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{
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glFrustum(-1.0, +1.0, -1.0, +1.0, +10.0, +FAR_FAR_AWAY);
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gluLookAt(0.0, -viewer_distance, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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glRotated(object_rot_y, 1.0, 0.0, 0.0);
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glRotated(object_rot_z, 0.0, 0.0, 1.0);
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#if 0
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glColor3d(0.0, 0.0, 1.0);
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glBegin(GL_LINES);
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glVertex3d(0, 0, 0); glVertex3d(10, 0, 0);
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glVertex3d(0, 0, 0); glVertex3d(0, 10, 0);
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glVertex3d(0, 0, 0); glVertex3d(0, 0, 10);
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glEnd();
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#endif
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if (renderfunc)
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renderfunc(renderfunc_vp);
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glColor3d(1.0, 0.0, 0.0);
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for (int i=0; i<polygons.size(); i++) {
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Polygon *poly = &polygons[i];
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glBegin(GL_POLYGON);
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for (int j=0; j<poly->size(); j++) {
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const Point *p = &poly->at(j);
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glVertex3d(p->x, p->y, p->z);
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}
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glEnd();
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}
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glColor3d(0.5, 0.0, 0.0);
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for (int i=0; i<polygons.size(); i++) {
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Polygon *poly = &polygons[i];
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glBegin(GL_LINE_LOOP);
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for (int j=0; j<poly->size(); j++) {
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const Point *p = &poly->at(j);
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glVertex3d(p->x, p->y, p->z);
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}
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glEnd();
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}
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}
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void GLView::wheelEvent(QWheelEvent *event)
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{
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viewer_distance *= pow(0.9, event->delta() / 120.0);
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updateGL();
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}
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void GLView::mousePressEvent(QMouseEvent *event)
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{
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mouse_drag_active = true;
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last_mouse_x = event->globalX();
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last_mouse_y = event->globalY();
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grabMouse();
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}
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void GLView::mouseMoveEvent(QMouseEvent *event)
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{
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int this_mouse_x = event->globalX();
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int this_mouse_y = event->globalY();
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if (mouse_drag_active) {
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object_rot_y += (this_mouse_y-last_mouse_y) * 0.7;
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object_rot_z += (this_mouse_x-last_mouse_x) * 0.7;
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updateGL();
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}
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last_mouse_x = this_mouse_x;
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last_mouse_y = this_mouse_y;
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}
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void GLView::mouseReleaseEvent(QMouseEvent*)
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{
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mouse_drag_active = false;
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releaseMouse();
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}
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