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Add a GLPainter class to do all the OpenGL drawing stuff

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This commit is contained in:
wmayer
2013-04-27 19:24:39 +02:00
parent adaa3716dd
commit 420d10face
10 changed files with 346 additions and 244 deletions
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177
src/Gui/View3DInventorViewer.cpp
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@@ -948,7 +948,7 @@ void View3DInventorViewer::actualRedraw(void)
vv.projectToScreen(pt, pt);
int tox = (int)(pt[0] * size[0]);
int toy = (int)((1.0f-pt[1]) * size[1]);
flag->drawLine(tox, toy);
flag->drawLine(this, tox, toy);
}
}
}
@@ -1506,181 +1506,6 @@ void View3DInventorViewer::viewSelection()
root->unref();
}
// Draw routines
void View3DInventorViewer::drawRect(int x1, int y1, int x2, int y2)
{
// Make current context
SbVec2s view = this->getGLSize();
this->glLockNormal();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, view[0], 0, view[1], -1, 1);
// Store GL state
glPushAttrib(GL_ALL_ATTRIB_BITS);
GLfloat depthrange[2];
glGetFloatv(GL_DEPTH_RANGE, depthrange);
GLdouble projectionmatrix[16];
glGetDoublev(GL_PROJECTION_MATRIX, projectionmatrix);
glDepthFunc(GL_ALWAYS);
glDepthMask(GL_TRUE);
glDepthRange(0,0);
glEnable(GL_DEPTH_TEST);
glDisable(GL_LIGHTING);
glEnable(GL_COLOR_MATERIAL);
glDisable(GL_BLEND);
glEnable(GL_COLOR_LOGIC_OP);
glLogicOp(GL_XOR);
glDrawBuffer(GL_FRONT);
glLineWidth(3.0f);
glEnable(GL_LINE_STIPPLE);
glLineStipple(2, 0x3F3F);
glColor4f(1.0, 1.0, 0.0, 0.0);
glViewport(0, 0, view[0], view[1]);
glBegin(GL_LINE_LOOP);
glVertex3i(x1, view[1]-y1, 0);
glVertex3i(x2, view[1]-y1, 0);
glVertex3i(x2, view[1]-y2, 0);
glVertex3i(x1, view[1]-y2, 0);
glEnd();
glFlush();
glDisable(GL_LINE_STIPPLE);
glDisable(GL_COLOR_LOGIC_OP);
// Reset original state
glDepthRange(depthrange[0], depthrange[1]);
glMatrixMode(GL_PROJECTION);
glLoadMatrixd(projectionmatrix);
glPopAttrib();
glPopMatrix();
// Release the context
this->glUnlockNormal();
}
void View3DInventorViewer::drawLine (int x1, int y1, int x2, int y2)
{
// Make current context
SbVec2s view = this->getGLSize();
this->glLockNormal();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, view[0], 0, view[1], -1, 1);
// Store GL state
glPushAttrib(GL_ALL_ATTRIB_BITS);
GLfloat depthrange[2];
glGetFloatv(GL_DEPTH_RANGE, depthrange);
GLdouble projectionmatrix[16];
glGetDoublev(GL_PROJECTION_MATRIX, projectionmatrix);
glDepthFunc(GL_ALWAYS);
glDepthMask(GL_TRUE);
glDepthRange(0,0);
glEnable(GL_DEPTH_TEST);
glDisable(GL_LIGHTING);
glEnable(GL_COLOR_MATERIAL);
glDisable(GL_BLEND);
glLineWidth(1.0f);
glColor4f(1.0, 1.0, 1.0, 0.0);
glViewport(0, 0, view[0], view[1]);
glEnable(GL_COLOR_LOGIC_OP);
glLogicOp(GL_XOR);
glDrawBuffer(GL_FRONT);
glBegin(GL_LINES);
glVertex3i(x1, view[1]-y1, 0);
glVertex3i(x2, view[1]-y2, 0);
glEnd();
glFlush();
glLogicOp(GL_COPY);
glDisable(GL_COLOR_LOGIC_OP);
// Reset original state
glDepthRange(depthrange[0], depthrange[1]);
glMatrixMode(GL_PROJECTION);
glLoadMatrixd(projectionmatrix);
glPopAttrib();
glPopMatrix();
// Release the context
this->glUnlockNormal();
}
void View3DInventorViewer::drawLine (int x1, int y1, int x2, int y2, GLfloat line,
GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha,
GLenum op)
{
// Make current context
SbVec2s view = this->getGLSize();
this->glLockNormal();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, view[0], 0, view[1], -1, 1);
// Store GL state
glPushAttrib(GL_ALL_ATTRIB_BITS);
GLfloat depthrange[2];
glGetFloatv(GL_DEPTH_RANGE, depthrange);
GLdouble projectionmatrix[16];
glGetDoublev(GL_PROJECTION_MATRIX, projectionmatrix);
glDepthFunc(GL_ALWAYS);
glDepthMask(GL_TRUE);
glDepthRange(0,0);
glEnable(GL_DEPTH_TEST);
glDisable(GL_LIGHTING);
glEnable(GL_COLOR_MATERIAL);
glDisable(GL_BLEND);
glLineWidth(line);
glColor4f(red, green, blue, alpha);
glViewport(0, 0, view[0], view[1]);
if (op > 0) {
glEnable(GL_COLOR_LOGIC_OP);
glLogicOp(op);
}
glDrawBuffer(GL_FRONT);
glBegin(GL_LINES);
glVertex3i(x1, view[1]-y1, 0);
glVertex3i(x2, view[1]-y2, 0);
glEnd();
glFlush();
if (op) {
glLogicOp(GL_COPY);
glDisable(GL_COLOR_LOGIC_OP);
}
// Reset original state
glDepthRange(depthrange[0], depthrange[1]);
glMatrixMode(GL_PROJECTION);
glLoadMatrixd(projectionmatrix);
glPopAttrib();
glPopMatrix();
// Release the context
this->glUnlockNormal();
}
/*!
Decide if it should be possible to start a spin animation of the
model in the viewer by releasing the mouse button while dragging.