diff options
Diffstat (limited to 'glview.cc')
| -rw-r--r-- | glview.cc | 118 |
1 files changed, 114 insertions, 4 deletions
@@ -20,6 +20,7 @@ #include "openscad.h" +#include <QApplication> #include <QWheelEvent> #include <QMouseEvent> @@ -28,8 +29,12 @@ GLView::GLView(QWidget *parent) : QGLWidget(parent) { viewer_distance = 500; - object_rot_y = 35; + object_rot_x = 35; + object_rot_y = 0; object_rot_z = 25; + object_trans_x = 0; + object_trans_y = 0; + object_trans_z = 0; mouse_drag_active = false; last_mouse_x = 0; @@ -37,6 +42,7 @@ GLView::GLView(QWidget *parent) : QGLWidget(parent) orthomode = false; showaxis = false; + showcrosshairs = false; renderfunc = NULL; renderfunc_vp = NULL; @@ -198,9 +204,40 @@ void GLView::paintGL() glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE); glEnable(GL_COLOR_MATERIAL); - glRotated(object_rot_y, 1.0, 0.0, 0.0); + glRotated(object_rot_x, 1.0, 0.0, 0.0); + glRotated(object_rot_y, 0.0, 1.0, 0.0); glRotated(object_rot_z, 0.0, 0.0, 1.0); + if (showcrosshairs) + { + glLineWidth(3); + glColor3d(0.5, 0.0, 0.0); + glBegin(GL_LINES); + for (double xf = -1; xf <= +1; xf += 2) + for (double yf = -1; yf <= +1; yf += 2) { + double vd = viewer_distance/20; + glVertex3d(-xf*vd, -yf*vd, -vd); + glVertex3d(+xf*vd, +yf*vd, +vd); + } + glEnd(); + } + + glTranslated(object_trans_x, object_trans_y, object_trans_z); + + if (showaxis) + { + glLineWidth(1); + glColor3d(0.5, 0.5, 0.5); + glBegin(GL_LINES); + glVertex3d(-viewer_distance/10, 0, 0); + glVertex3d(+viewer_distance/10, 0, 0); + glVertex3d(0, -viewer_distance/10, 0); + glVertex3d(0, +viewer_distance/10, 0); + glVertex3d(0, 0, -viewer_distance/10); + glVertex3d(0, 0, +viewer_distance/10); + glEnd(); + } + glDepthFunc(GL_LESS); glCullFace(GL_BACK); glDisable(GL_CULL_FACE); @@ -222,7 +259,12 @@ void GLView::paintGL() -(1/w_h_ratio)*1000/10, +(1/w_h_ratio)*1000/10, -FAR_FAR_AWAY, +FAR_FAR_AWAY); gluLookAt(0.0, -1000, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glRotated(object_rot_x, 1.0, 0.0, 0.0); + glRotated(object_rot_y, 0.0, 1.0, 0.0); + glRotated(object_rot_z, 0.0, 0.0, 1.0); glLineWidth(1); glColor3d(0.0, 0.0, 1.0); @@ -257,6 +299,7 @@ void GLView::paintGL() glLoadIdentity(); glTranslated(-1, -1, 0); glScaled(2.0/viewport[2], 2.0/viewport[3], 1); + glMatrixMode(GL_MODELVIEW); glLoadIdentity(); @@ -303,6 +346,41 @@ void GLView::mousePressEvent(QMouseEvent *event) last_mouse_y = event->globalY(); grabMouse(); setFocus(); + updateGL(); +} + +static void mat_id(double *trg) +{ + for (int i = 0; i < 16; i++) + trg[i] = i%5 == 0; +} + +static void mat_mul(double *trg, const double *m1, const double *m2) +{ + double m[16]; + for (int x = 0; x < 4; x++) + for (int y = 0; y < 4; y++) + { + m[x+y*4] = 0; + for (int i = 0; i < 4; i++) + m[x+y*4] += m1[i+y*4] * m2[x+i*4]; + } + for (int i = 0; i < 16; i++) + trg[i] = m[i]; +} + +static void mat_rot(double *trg, double angle, double x, double y, double z) +{ + double s = sin(M_PI*angle/180), c = cos(M_PI*angle/180); + double cc = 1 - c; + double m[16] = { + x*x*cc+c, x*y*cc-z*s, x*z*cc+y*s, 0, + y*x*cc+z*s, y*y*cc+c, y*z*cc-x*s, 0, + x*z*cc-y*s, y*z*cc+x*s, z*z*cc+c, 0, + 0, 0, 0, 1 + }; + for (int i = 0; i < 16; i++) + trg[i] = m[i]; } void GLView::mouseMoveEvent(QMouseEvent *event) @@ -310,8 +388,39 @@ 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; + if ((event->buttons() & Qt::LeftButton) != 0) { + object_rot_x += (this_mouse_y-last_mouse_y) * 0.7; + if ((QApplication::keyboardModifiers() & Qt::ShiftModifier) != 0) + object_rot_y += (this_mouse_x-last_mouse_x) * 0.7; + else + object_rot_z += (this_mouse_x-last_mouse_x) * 0.7; + } else { + double mx = +(this_mouse_x-last_mouse_x) * viewer_distance/1000; + double my = -(this_mouse_y-last_mouse_y) * viewer_distance/1000; + double rx[16], ry[16], rz[16], tm[16]; + mat_rot(rx, -object_rot_x, 1.0, 0.0, 0.0); + mat_rot(ry, -object_rot_y, 0.0, 1.0, 0.0); + mat_rot(rz, -object_rot_z, 0.0, 0.0, 1.0); + mat_id(tm); + mat_mul(tm, rx, tm); + mat_mul(tm, ry, tm); + mat_mul(tm, rz, tm); + double vec[16] = { + 0, 0, 0, mx, + 0, 0, 0, 0, + 0, 0, 0, my, + 0, 0, 0, 1 + }; + if ((QApplication::keyboardModifiers() & Qt::ShiftModifier) != 0) { + vec[3] = 0; + vec[7] = my; + vec[11] = 0; + } + mat_mul(tm, tm, vec); + object_trans_x += tm[3]; + object_trans_y += tm[7]; + object_trans_z += tm[11]; + } updateGL(); } last_mouse_x = this_mouse_x; @@ -322,5 +431,6 @@ void GLView::mouseReleaseEvent(QMouseEvent*) { mouse_drag_active = false; releaseMouse(); + updateGL(); } |