--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/draw.cpp Fri Mar 15 20:11:18 2013 +0200
@@ -0,0 +1,159 @@
+#include <QtGui>
+#include <QGLWidget>
+#include "common.h"
+#include "io.h"
+#include "draw.h"
+#include "bbox.h"
+
+renderer::renderer (QWidget* parent) {
+ parent = parent; // shhh, GCC
+ fRotX = fRotY = fRotZ = 0.0;
+ fZoom = 1.0;
+}
+
+void renderer::initializeGL () {
+ glLoadIdentity();
+ glMatrixMode (GL_MODELVIEW);
+ glClearColor (0.8f, 0.8f, 0.85f, 1.0f);
+ glEnable (GL_DEPTH_TEST);
+ glShadeModel (GL_SMOOTH);
+ glEnable (GL_MULTISAMPLE);
+
+ CompileObjects ();
+}
+
+void renderer::hardRefresh () {
+ CompileObjects ();
+ paintGL ();
+}
+
+void renderer::resizeGL (int w, int h) {
+ glViewport (0, 0, w, h);
+}
+
+void renderer::paintGL () {
+ glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glPushMatrix ();
+ glTranslatef (
+ (g_BBox.v0.x + g_BBox.v1.x) / -2.0,
+ (g_BBox.v0.y + g_BBox.v1.y) / -2.0,
+ (g_BBox.v0.z + g_BBox.v1.z) / -2.0
+ );
+
+ // glTranslatef (0.0f, 0.0f, -5.0f);
+ glTranslatef (0.0f, 0.0f, fZoom);
+
+ // glScalef (0.75f, 1.15f, 0.0f);
+ glRotatef (fRotX, 1.0f, 0.0f, 0.0f);
+ glRotatef (fRotY, 0.0f, 1.0f, 0.0f);
+ glRotatef (fRotZ, 0.0f, 0.0f, 1.0f);
+
+ glMatrixMode (GL_MODELVIEW);
+
+ glCallList (objlist);
+ glColor3f (0.0, 0.5, 1.0);
+ glPopMatrix ();
+}
+
+void renderer::CompileObjects () {
+ printf ("compile all objects\n");
+
+ objlist = glGenLists (1);
+ glNewList (objlist, GL_COMPILE);
+
+ if (!g_CurrentFile) {
+ printf ("renderer: no files loaded, cannot compile anything\n");
+ return;
+ }
+
+ for (ulong i = 0; i < g_CurrentFile->objects.size(); i++)
+ CompileOneObject (g_CurrentFile->objects[i]);
+
+ glEndList ();
+}
+
+#define GL_VERTEX(V) \
+ glVertex3d (V.x, V.y, V.z);
+
+void renderer::CompileOneObject (LDObject* obj) {
+ if (!obj)
+ return;
+
+ switch (obj->getType ()) {
+ case OBJ_CondLine: // For now, treat condlines like normal lines.
+ case OBJ_Line:
+ {
+ glColor3f (0.0f, 0.0f, 0.0f); // Draw all lines black for now
+ // draw lines
+ LDLine* line = static_cast<LDLine*> (obj);
+ glBegin (GL_LINES);
+ for (short i = 0; i < 2; ++i)
+ GL_VERTEX (line->vaCoords[i])
+ glEnd ();
+ }
+ break;
+
+ case OBJ_Triangle:
+ {
+ LDTriangle* tri = static_cast<LDTriangle*> (obj);
+ glColor3f (0.5f, 0.5f, 0.5f); // Draw all polygons gray for now
+ glBegin (GL_TRIANGLES);
+ for (short i = 0; i < 3; ++i)
+ GL_VERTEX (tri->vaCoords[i])
+ glEnd ();
+ }
+ break;
+
+ case OBJ_Quad:
+ {
+ LDQuad* quad = static_cast<LDQuad*> (obj);
+ glColor3f (0.5f, 0.5f, 0.5f);
+ glBegin (GL_QUADS);
+ for (short i = 0; i < 4; ++i)
+ GL_VERTEX (quad->vaCoords[i])
+ glEnd ();
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+void renderer::ClampAngle (double& fAngle) {
+ while (fAngle < 0)
+ fAngle += 360.0;
+ while (fAngle > 360.0)
+ fAngle -= 360.0;
+}
+
+void renderer::mouseMoveEvent (QMouseEvent *event) {
+ int dx = event->x () - lastPos.x ();
+ int dy = event->y () - lastPos.y ();
+
+ if (event->buttons () & Qt::LeftButton) {
+ fRotX = fRotX + (dy);
+ fRotY = fRotY + (dx);
+ ClampAngle (fRotX);
+ ClampAngle (fRotY);
+ }
+
+ if (event->buttons () & Qt::RightButton) {
+ fRotX = fRotX + (dy);
+ fRotZ = fRotZ + (dx);
+ ClampAngle (fRotX);
+ ClampAngle (fRotZ);
+ }
+
+ if (event->buttons () & Qt::MidButton) {
+ fZoom += (dy / 100.0);
+ fZoom = clamp (fZoom, 0.1, 10.0);
+ }
+
+ printf ("%.3f %.3f %.3f %.3f\n",
+ fRotX, fRotY, fRotZ, fZoom);
+ lastPos = event->pos();
+ updateGL ();
+}
\ No newline at end of file