Clifford Wolf:

	Added GUI



git-svn-id: http://svn.clifford.at/openscad/trunk@13 b57f626f-c46c-0410-a088-ec61d464b74c

1 files changed, 138 insertions, 0 deletions

diff --git a/glview.cc b/glview.cc
new file mode 100644
index 0000000..db9a303
--- /dev/null
+++ b/glview.cc
@@ -0,0 +1,138 @@
+/*
+ *  OpenSCAD (www.openscad.at)
+ *  Copyright (C) 2009  Clifford Wolf <clifford@clifford.at>
+ *
+ *  This program 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 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "openscad.h"
+
+#include <QWheelEvent>
+#include <QMouseEvent>
+
+#define FAR_FAR_AWAY 100000.0
+
+GLView::GLView(QWidget *parent) : QGLWidget(parent)
+{
+	viewer_distance = 10;
+	object_rot_y = 0;
+	object_rot_z = 0;
+
+	mouse_drag_active = false;
+	last_mouse_x = 0;
+	last_mouse_y = 0;
+
+	renderfunc = NULL;
+	renderfunc_vp = NULL;
+
+	setMouseTracking(true);
+}
+
+void GLView::initializeGL()
+{
+	glEnable(GL_DEPTH_TEST);
+	glDepthRange(-FAR_FAR_AWAY, +FAR_FAR_AWAY);
+
+	glClearColor(1.0, 1.0, 0.9, 0.0);
+}
+
+void GLView::resizeGL(int w, int h)
+{
+	glViewport(0, 0, (GLint)w, (GLint)h);
+}
+
+void GLView::paintGL()
+{
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+	glFrustum(-1.0, +1.0, -1.0, +1.0, +10.0, +FAR_FAR_AWAY);
+	gluLookAt(0.0, -viewer_distance, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0);
+
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+	glRotated(object_rot_y, 1.0, 0.0, 0.0);
+	glRotated(object_rot_z, 0.0, 0.0, 1.0);
+
+#if 0
+	glColor3d(0.0, 0.0, 1.0);
+	glBegin(GL_LINES);
+	glVertex3d(0, 0, 0); glVertex3d(10, 0, 0);
+	glVertex3d(0, 0, 0); glVertex3d(0, 10, 0);
+	glVertex3d(0, 0, 0); glVertex3d(0, 0, 10);
+	glEnd();
+#endif
+
+	if (renderfunc)
+		renderfunc(renderfunc_vp);
+
+	glColor3d(1.0, 0.0, 0.0);
+	for (int i=0; i<polygons.size(); i++) {
+		Polygon *poly = &polygons[i];
+		glBegin(GL_POLYGON);
+		for (int j=0; j<poly->size(); j++) {
+			const Point *p = &poly->at(j);
+			glVertex3d(p->x, p->y, p->z);
+		}
+		glEnd();
+	}
+
+	glColor3d(0.5, 0.0, 0.0);
+	for (int i=0; i<polygons.size(); i++) {
+		Polygon *poly = &polygons[i];
+		glBegin(GL_LINE_LOOP);
+		for (int j=0; j<poly->size(); j++) {
+			const Point *p = &poly->at(j);
+			glVertex3d(p->x, p->y, p->z);
+		}
+		glEnd();
+	}
+}
+
+void GLView::wheelEvent(QWheelEvent *event)
+{
+	viewer_distance *= pow(0.9, event->delta() / 120.0);
+	updateGL();
+}
+
+void GLView::mousePressEvent(QMouseEvent *event)
+{
+	mouse_drag_active = true;
+	last_mouse_x = event->globalX();
+	last_mouse_y = event->globalY();
+	grabMouse();
+}
+
+void GLView::mouseMoveEvent(QMouseEvent *event)
+{
+	int this_mouse_x = event->globalX();
+	int this_mouse_y = event->globalY();
+	if (mouse_drag_active) {
+		object_rot_y += (this_mouse_y-last_mouse_y) * 0.7;
+		object_rot_z += (this_mouse_x-last_mouse_x) * 0.7;
+		updateGL();
+	}
+	last_mouse_x = this_mouse_x;
+	last_mouse_y = this_mouse_y;
+}
+
+void GLView::mouseReleaseEvent(QMouseEvent*)
+{
+	mouse_drag_active = false;
+	releaseMouse();
+}
+