From b85a292ce06475d560bfa1195b63a8bfe211f22d Mon Sep 17 00:00:00 2001
From: Timothy Pearson <kb9vqf@pearsoncomputing.net>
Date: Wed, 11 Jul 2012 14:15:27 -0500
Subject: Add 0.2.7 release of qwtplot3d for future TQt3 conversion and use

---
 lib/tqwtplot3d/src/qwt3d_drawable.cpp | 140 ++++++++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 lib/tqwtplot3d/src/qwt3d_drawable.cpp

(limited to 'lib/tqwtplot3d/src/qwt3d_drawable.cpp')

diff --git a/lib/tqwtplot3d/src/qwt3d_drawable.cpp b/lib/tqwtplot3d/src/qwt3d_drawable.cpp
new file mode 100644
index 0000000..4025817
--- /dev/null
+++ b/lib/tqwtplot3d/src/qwt3d_drawable.cpp
@@ -0,0 +1,140 @@
+#include "qwt3d_drawable.h"
+
+using namespace Qwt3D;
+
+Drawable::~Drawable()
+{
+  detachAll();
+}
+
+void Drawable::saveGLState()
+{
+	glGetBooleanv(GL_LINE_SMOOTH, &ls);
+	glGetBooleanv(GL_POLYGON_SMOOTH, &pols);
+	glGetFloatv(GL_LINE_WIDTH, &lw);
+	glGetIntegerv(GL_BLEND_SRC, &blsrc);
+	glGetIntegerv(GL_BLEND_DST, &bldst);
+	glGetDoublev(GL_CURRENT_COLOR, col);
+	glGetIntegerv(GL_LINE_STIPPLE_PATTERN, &pattern);
+	glGetIntegerv(GL_LINE_STIPPLE_REPEAT, &factor);
+	glGetBooleanv(GL_LINE_STIPPLE, &sallowed);
+	glGetBooleanv(GL_TEXTURE_2D, &tex2d);
+	glGetIntegerv(GL_POLYGON_MODE, polmode);
+	glGetIntegerv(GL_MATRIX_MODE, &matrixmode);
+	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &poloffs[0]);
+	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &poloffs[1]);
+	glGetBooleanv(GL_POLYGON_OFFSET_FILL, &poloffsfill);
+}
+
+void Drawable::restoreGLState()
+{
+	Enable(GL_LINE_SMOOTH, ls);
+	Enable(GL_POLYGON_SMOOTH, pols);
+	
+	setDeviceLineWidth(lw);
+	glBlendFunc(blsrc, bldst);
+	glColor4dv(col);
+
+	glLineStipple(factor,pattern);
+	Enable(GL_LINE_STIPPLE,sallowed);
+	Enable(GL_TEXTURE_2D,tex2d);
+	glPolygonMode(polmode[0], polmode[1]);
+	glMatrixMode(matrixmode);
+	glPolygonOffset(poloffs[0], poloffs[1]);
+	setDevicePolygonOffset(poloffs[0], poloffs[1]);
+
+	Enable(GL_POLYGON_OFFSET_FILL, poloffsfill);
+}
+
+void Drawable::Enable(GLenum what, GLboolean val)
+{
+	if (val)
+		glEnable(what);
+  else
+		glDisable(what);
+}
+
+void Drawable::attach(Drawable* dr)
+{
+	if ( dlist.end() == std::find( dlist.begin(), dlist.end(), dr ) )
+		if (dr)
+		{
+			dlist.push_back(dr);
+		}
+}
+
+void Drawable::detach(Drawable* dr)
+{
+	std::list<Drawable*>::iterator it = std::find(dlist.begin(), dlist.end(), dr);
+	
+	if ( it != dlist.end() )
+	{
+		dlist.erase(it);
+	}
+}
+void Drawable::detachAll()
+{
+	dlist.clear();
+}
+
+
+//! simplified glut routine (glUnProject): windows coordinates_p --> object coordinates_p 
+/**
+	Don't rely on (use) this in display lists !
+*/
+Triple Drawable::ViewPort2World(Triple win, bool* err)
+{
+  Triple obj;
+	
+	getMatrices(modelMatrix, projMatrix, viewport);
+	int res = gluUnProject(win.x, win.y, win.z, modelMatrix, projMatrix, viewport, &obj.x, &obj.y, &obj.z);
+
+	if (err)
+		*err = (res) ? false : true;
+	return obj;
+}
+
+//! simplified glut routine (glProject): object coordinates_p --> windows coordinates_p 
+/**
+	Don't rely on (use) this in display lists !
+*/
+Triple Drawable::World2ViewPort(Triple obj,	bool* err)
+{
+  Triple win;
+	
+	getMatrices(modelMatrix, projMatrix, viewport);
+	int res = gluProject(obj.x, obj.y, obj.z, modelMatrix, projMatrix, viewport, &win.x, &win.y, &win.z);
+
+	if (err)
+		*err = (res) ? false : true;
+	return win;
+}
+
+/**
+	Don't rely on (use) this in display lists !
+*/
+Triple Drawable::relativePosition(Triple rel)
+{
+	return ViewPort2World(Triple((rel.x-viewport[0])*viewport[2],(rel.y-viewport[1])*viewport[3],rel.z));
+}
+
+void Drawable::draw()
+{
+	saveGLState();
+
+	for (std::list<Drawable*>::iterator it = dlist.begin(); it!=dlist.end(); ++it)
+	{
+		(*it)->draw();
+	}
+	restoreGLState();
+}
+
+void Drawable::setColor(double r, double g, double b, double a)
+{
+	color = RGBA(r,g,b,a);
+}	
+
+void Drawable::setColor(RGBA rgba)
+{
+	color = rgba;
+}	
-- 
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