--- /dev/null
+// Copyright (C) 2006 Erik Dahlberg
+//
+// This file is part of LSystem3d.
+//
+// LSystem3D 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.
+//
+// LSystem3D 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 LSystem3D; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+
+
+#include "color.h"
+
+
+
+/**
+ * Constructor
+ * @param r red component
+ * @param g green component
+ * @param b blue component
+ */
+Color::Color(double r, double g, double b)
+{
+ setRGB(r, g, b);
+}
+
+
+
+/**
+ * Destructor
+ */
+Color::~Color()
+{
+}
+
+
+
+/**
+ * Set color
+ * @param r red component
+ * @param g green component
+ * @param b blue component
+ */
+void Color::setRGB(double r, double g, double b)
+{
+ _r = r;
+ _g = g;
+ _b = b;
+}
+
+
+
+/**
+ * Get red component
+ * @return the red component
+ */
+double Color::getR()
+{
+ return _r;
+}
+
+
+
+/**
+ * Get green component
+ * @return the green component
+ */
+double Color::getG()
+{
+ return _g;
+}
+
+
+
+/**
+ * Get blue component
+ * @return the blue component
+ */
+double Color::getB()
+{
+ return _b;
+}
--- /dev/null
+// Copyright (C) 2006 Erik Dahlberg
+//
+// This file is part of LSystem3d.
+//
+// LSystem3D 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.
+//
+// LSystem3D 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 LSystem3D; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+
+
+#ifndef COLOR_H
+#define COLOR_H
+
+
+
+/**
+ * Color in RGB format
+ */
+class Color
+{
+public:
+
+ /**
+ * Constructor
+ * @param r red component
+ * @param g green component
+ * @param b blue component
+ */
+ Color(double r, double g, double b);
+
+ /**
+ * Destructor
+ */
+ ~Color();
+
+ /**
+ * Set color
+ * @param r red component
+ * @param g green component
+ * @param b blue component
+ */
+ void setRGB(double r, double g, double b);
+
+ /**
+ * Get red component
+ * @return the red component
+ */
+ double getR();
+
+ /**
+ * Get green component
+ * @return the green component
+ */
+ double getG();
+
+ /**
+ * Get blue component
+ * @return the blue component
+ */
+ double getB();
+
+protected:
+
+ double _r, _g, _b;
+};
+
+
+
+#endif
--- /dev/null
+// Copyright (C) 2006 Erik Dahlberg
+//
+// This file is part of LSystem3d.
+//
+// LSystem3D 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.
+//
+// LSystem3D 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 LSystem3D; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+
+
+#include <map>
+#include <string>
+
+#include "fx.h"
+
+#include "gui.h"
+#include "lindenmayersystem.h"
+#include "lsystemparameters.h"
+#include "renderingsurface.h"
+
+
+
+// message map
+FXDEFMAP(GUI) GUIMap[] =
+{
+ FXMAPFUNC(SEL_COMMAND, GUI::ID_GENERATE, GUI::onGenerateButtonPressed)
+};
+
+// macro to set up class implementation
+FXIMPLEMENT(GUI, FXMainWindow, GUIMap, ARRAYNUMBER(GUIMap))
+
+
+
+/**
+ * Constructor
+ * @param application the FOX application object
+ * @param renderingSurface the rendering surface
+ * @param lsystem the Lindenmayer-system
+ */
+GUI::GUI(FXApp *application, RenderingSurface *renderingSurface, LindenmayerSystem *lsystem) : FXMainWindow(application, "LSystem3D" , NULL, NULL, DECOR_ALL, 920, 100, 0, 0)
+{
+ _lsystem = lsystem;
+ _renderingSurface = renderingSurface;
+
+
+ // create the widgets
+
+ // the main frame
+ FXVerticalFrame *mainFrame = new FXVerticalFrame(this, LAYOUT_FILL_X);
+
+ // axiom
+ FXHorizontalFrame *axiomFrame = new FXHorizontalFrame(mainFrame, LAYOUT_FILL_X);
+ new FXLabel(axiomFrame, "Axiom:");
+ _axiomTextField = new FXTextField(axiomFrame, 10, NULL, 0, LAYOUT_FILL_X);
+
+ // rules
+ FXHorizontalFrame *rulesFrame = new FXHorizontalFrame(mainFrame, LAYOUT_FILL_X);
+ new FXLabel(rulesFrame, "Rules:");
+ _rulesText = new FXText(rulesFrame, NULL, 0, LAYOUT_FILL_X);
+ _rulesText->setVisibleColumns(30);
+ _rulesText->setVisibleRows(10);
+
+ // angle
+ FXHorizontalFrame *angleFrame = new FXHorizontalFrame(mainFrame);
+ new FXLabel(angleFrame, "Angle:");
+ _angleRealSpinner = new FXRealSpinner(angleFrame, 5);
+
+ // iterations
+ FXHorizontalFrame *iterationsFrame = new FXHorizontalFrame(mainFrame);
+ new FXLabel(iterationsFrame, "Iterations:");
+ _iterationsSpinner = new FXSpinner(iterationsFrame, 5);
+
+ // diameter
+ FXHorizontalFrame *diameterFrame = new FXHorizontalFrame(mainFrame);
+ new FXLabel(diameterFrame, "Diameter:");
+ _diameterRealSpinner = new FXRealSpinner(diameterFrame, 5);
+ _diameterRealSpinner->setValue(0.2);
+ _diameterRealSpinner->setIncrement(0.1);
+
+ // diameter factor
+ new FXLabel(diameterFrame, "Factor:");
+ _diameterFactorRealSpinner = new FXRealSpinner(diameterFrame, 5);
+ _diameterFactorRealSpinner->setValue(0.8);
+ _diameterFactorRealSpinner->setIncrement(0.1);
+
+ // separator
+ new FXHorizontalSeparator(mainFrame, SEPARATOR_RIDGE | LAYOUT_FILL_X);
+
+ // generate
+ new FXButton(mainFrame, "&Generate", NULL, this, GUI::ID_GENERATE);
+
+
+
+ // load L-system parameters from file and sync with GUI
+
+ _lsystemParameters.load(_lsystem, "lsystem.xml");
+
+ // axiom
+ _axiomTextField->setText(_lsystem->getAxiom().c_str());
+
+ // rules
+ map<string,string> allRulesSrc = _lsystem->getRules();
+ string allRulesDst;
+ for (map<string,string>::iterator currentRule = allRulesSrc.begin();
+ currentRule != allRulesSrc.end();
+ currentRule++)
+ {
+ // one rule
+ string rule = currentRule->first + "=" + currentRule->second + '\n';
+ allRulesDst += rule.c_str();
+ }
+ _rulesText->setText(allRulesDst.c_str(), allRulesDst.size());
+
+ // angle
+ _angleRealSpinner->setValue(_lsystem->getAngle());
+
+ // iterations
+ _iterationsSpinner->setValue(_lsystem->getNumIterations());
+}
+
+
+
+/**
+ * Create and initialize the window
+ */
+void GUI::create()
+{
+ // create the window and make it appear
+ FXMainWindow::create();
+ show();
+}
+
+
+
+/**
+ * Called by the system when the "generate"-button is pressed
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+long GUI::onGenerateButtonPressed(FXObject *sender, FXSelector selector, void *data)
+{
+ // clear L-system
+ _lsystem->clear();
+
+
+ // load data from widgets into L-system
+
+ // axiom
+ _lsystem->setAxiom(_axiomTextField->getText().text());
+
+ // rules
+ string ruleSet = _rulesText->getText().text();
+ string currentRule;
+ string ruleName;
+ bool newRule = true;
+ for (int i = 0; i < ruleSet.size(); i++)
+ {
+ if (newRule)
+ {
+ // get rule name
+ ruleName = ruleSet[i];
+ i += 2;
+ newRule = false;
+ }
+
+ if (ruleSet[i] != '\n' || i == ruleSet.size() - 1)
+ {
+ // part of current rule
+ currentRule += ruleSet[i];
+ }
+
+ if (ruleSet[i] == '\n' || i == ruleSet.size() - 1)
+ {
+ // end of rule
+ _lsystem->setRule(ruleName, currentRule);
+ ruleName.clear();
+ currentRule.clear();
+ newRule = true;
+ }
+ }
+
+ // angle
+ _lsystem->setAngle(_angleRealSpinner->getValue());
+
+ // iterations
+ _lsystem->setNumIterations(_iterationsSpinner->getValue());
+
+ // diameter
+ _lsystem->setDiameter(_diameterRealSpinner->getValue());
+
+ // diameter factor
+ _lsystem->setDiameterFactor(_diameterFactorRealSpinner->getValue());
+
+
+ // generate and render L-system to screen
+ _lsystem->generate();
+ _renderingSurface->draw();
+}
--- /dev/null
+// Copyright (C) 2006 Erik Dahlberg
+//
+// This file is part of LSystem3d.
+//
+// LSystem3D 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.
+//
+// LSystem3D 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 LSystem3D; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+
+
+#ifndef GUI_H
+#define GUI_H
+
+#include "fx.h"
+
+#include "lindenmayersystem.h"
+#include "lsystemparameters.h"
+#include "renderingsurface.h"
+
+
+
+/**
+ * The GUI window
+ */
+class GUI : public FXMainWindow
+{
+ // macro to set up class declaration
+ FXDECLARE(GUI)
+
+public:
+
+ // message ID's
+ enum
+ {
+ ID_GENERATE = FXMainWindow::ID_LAST,
+ ID_LAST
+ };
+
+ /**
+ * Constructor
+ * @param application the FOX application object
+ * @param renderingSurface the rendering surface
+ * @param lsystem the Lindenmayer-system
+ */
+ GUI(FXApp *application, RenderingSurface *renderingSurface, LindenmayerSystem *lsystem);
+
+ /**
+ * Create and initialize the window
+ */
+ void create();
+
+ /**
+ * Called by the system when the "generate"-button is pressed
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+ long onGenerateButtonPressed(FXObject *sender, FXSelector selector, void *data);
+
+protected:
+
+ /**
+ * Constructor
+ */
+ GUI() {}
+
+private:
+
+ // GUI widgets
+
+ FXTextField *_axiomTextField; // Axiom
+ FXText *_rulesText; // Rules
+ FXRealSpinner *_angleRealSpinner; // Angle
+ FXSpinner *_iterationsSpinner; // Iterations
+
+ FXRealSpinner *_diameterRealSpinner; // Diameter
+ FXRealSpinner *_diameterFactorRealSpinner; // Diameter factor //TODO: "diameter factor"?
+
+
+ LindenmayerSystem *_lsystem; // The Lindenmayer-system
+ LSystemParameters _lsystemParameters; // Saves/loads l-system parameters from file
+ RenderingSurface *_renderingSurface; // The rendering surface
+};
+
+
+
+#endif
--- /dev/null
+// Copyright (C) 2006 Erik Dahlberg
+//
+// This file is part of LSystem3d.
+//
+// LSystem3D 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.
+//
+// LSystem3D 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 LSystem3D; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+
+
+#include "fx.h"
+
+#include "gui.h"
+#include "lindenmayersystem.h"
+#include "lsystem3d.h"
+#include "model.h"
+#include "renderingsurface.h"
+
+
+
+/**
+ * Constructor
+ */
+LSystem3D::LSystem3D(int argc, char *argv[])
+{
+ // create the FOX application object
+ FXApp *application = new FXApp("LSystem3D");
+ application->init(argc, argv);
+
+ Model model;
+ LindenmayerSystem lsystem(&model);
+
+ // create the windows and run the application
+ RenderingSurface *surface = new RenderingSurface(application, &lsystem);
+ new GUI(application, surface, &lsystem);
+ application->create();
+ application->run();
+}
+
+
+
+/**
+ * Destructor
+ */
+LSystem3D::~LSystem3D()
+{
+}
--- /dev/null
+// Copyright (C) 2006 Erik Dahlberg
+//
+// This file is part of LSystem3d.
+//
+// LSystem3D 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.
+//
+// LSystem3D 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 LSystem3D; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+
+
+#ifndef LSYSTEM3D_H
+#define LSYSTEM3D_H
+
+
+
+/**
+ * The main class
+ */
+class LSystem3D
+{
+public:
+
+ /**
+ * Constructor
+ */
+ LSystem3D(int argc, char *argv[]);
+
+ /**
+ * Destructor
+ */
+ ~LSystem3D();
+};
+
+
+
+#endif
--- /dev/null
+// Copyright (C) 2006 Erik Dahlberg
+//
+// This file is part of LSystem3d.
+//
+// LSystem3D 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.
+//
+// LSystem3D 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 LSystem3D; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+
+
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+#include "fx.h"
+#include "fx3d.h"
+
+#include "renderingsurface.h"
+
+
+
+// message map
+FXDEFMAP(RenderingSurface) RenderingSurfaceMap[] =
+{
+ FXMAPFUNC(SEL_LEFTBUTTONPRESS, RenderingSurface::ID_CANVAS, RenderingSurface::onLeftMouseDown),
+ FXMAPFUNC(SEL_LEFTBUTTONRELEASE, RenderingSurface::ID_CANVAS, RenderingSurface::onLeftMouseUp),
+ FXMAPFUNC(SEL_MIDDLEBUTTONPRESS, RenderingSurface::ID_CANVAS, RenderingSurface::onMiddleMouseDown),
+ FXMAPFUNC(SEL_MIDDLEBUTTONRELEASE, RenderingSurface::ID_CANVAS, RenderingSurface::onMiddleMouseUp),
+ FXMAPFUNC(SEL_RIGHTBUTTONPRESS, RenderingSurface::ID_CANVAS, RenderingSurface::onRightMouseDown),
+ FXMAPFUNC(SEL_RIGHTBUTTONRELEASE, RenderingSurface::ID_CANVAS, RenderingSurface::onRightMouseUp),
+ FXMAPFUNC(SEL_MOTION, RenderingSurface::ID_CANVAS, RenderingSurface::onMouseMove),
+ FXMAPFUNC(SEL_PAINT, RenderingSurface::ID_CANVAS, RenderingSurface::onRepaint)
+};
+
+// macro to set up class implementation
+FXIMPLEMENT(RenderingSurface, FXMainWindow, RenderingSurfaceMap, ARRAYNUMBER(RenderingSurfaceMap))
+
+
+
+/**
+ * Constructor
+ * @param application the FOX application object
+ * @param lsystem the Lindenmayer-system
+ */
+RenderingSurface::RenderingSurface(FXApp *application, LindenmayerSystem *lsystem) : FXMainWindow(application, "LSystem3D", NULL, NULL, DECOR_ALL, 100, 100, 800, 800)
+{
+ _lsystem = lsystem;
+
+ _modelX = 0.0;
+ _modelY = 0.0;
+ _modelZ = -10.0;
+
+ _modelRotationY = 0.0;
+
+ _leftMouseDown = _rightMouseDown = _middleMouseDown = false;
+
+
+ // pixel format info
+ _visual = new FXGLVisual(getApp(), VISUAL_DOUBLEBUFFER);
+
+ // OpenGL drawing area
+ FXVerticalFrame *mainFrame = new FXVerticalFrame(this, LAYOUT_FILL_X | LAYOUT_FILL_Y);
+ _canvas = new FXGLCanvas(mainFrame, _visual, this, ID_CANVAS, LAYOUT_FILL_X | LAYOUT_FILL_Y);
+}
+
+
+
+/**
+ * Create and initialize the window
+ */
+void RenderingSurface::create()
+{
+ // create the window
+ FXMainWindow::create();
+
+ // set up OpenGL
+ _canvas->makeCurrent();
+ initOpenGL();
+
+ // make the window appear
+ show();
+}
+
+
+
+/**
+ * Initialize OpenGL
+ */
+void RenderingSurface::initOpenGL()
+{
+ // projection matrix
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ gluPerspective(65, 1, 1, 500);
+
+ // modelview matrix
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+
+ // global ambient light
+ GLfloat ambientLight[] = {0.7, 0.7, 0.7, 1.0};
+ glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambientLight);
+
+ // diffuse light
+ GLfloat lightPosition[] = {150.0, 150.0, 0.0, 0.0};
+ GLfloat whiteLight[] = {1.0, 1.0, 1.0, 1.0};
+ glLightfv(GL_LIGHT0, GL_DIFFUSE, whiteLight);
+ glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
+
+
+ glEnable(GL_COLOR_MATERIAL);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glEnable(GL_DEPTH_TEST);
+}
+
+
+
+/**
+ * Force an update of the rendering surface
+ */
+void RenderingSurface::draw()
+{
+ _canvas->update();
+}
+
+
+
+/**
+ * Called by the system when the left mouse button is pressed
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+long RenderingSurface::onLeftMouseDown(FXObject *sender, FXSelector selector, void *data)
+{
+ _leftMouseDown = true;
+}
+
+
+
+/**
+ * Called by the system when the left mouse button is released
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+long RenderingSurface::onLeftMouseUp(FXObject *sender, FXSelector selector, void *data)
+{
+ _leftMouseDown = false;
+}
+
+
+
+/**
+ * Called by the system when the middle mouse button is pressed
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+long RenderingSurface::onMiddleMouseDown(FXObject *sender, FXSelector selector, void *data)
+{
+ _middleMouseDown = true;
+}
+
+
+
+/**
+ * Called by the system when the middle mouse button is released
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+long RenderingSurface::onMiddleMouseUp(FXObject *sender, FXSelector selector, void *data)
+{
+ _middleMouseDown = false;
+}
+
+
+
+/**
+ * Called by the system when the right mouse button is pressed
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+long RenderingSurface::onRightMouseDown(FXObject *sender, FXSelector selector, void *data)
+{
+ _rightMouseDown = true;
+}
+
+
+
+/**
+ * Called by the system when the right mouse button is released
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+long RenderingSurface::onRightMouseUp(FXObject *sender, FXSelector selector, void *data)
+{
+ _rightMouseDown = false;
+}
+
+
+
+/**
+ * Called by the system when the mouse is moved
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+long RenderingSurface::onMouseMove(FXObject *sender, FXSelector selector, void *data)
+{
+ // check status of the mouse buttons and move model
+
+ // left mouse button
+ if (_leftMouseDown)
+ {
+ // move in z-plane
+
+ FXEvent *event = (FXEvent*)data;
+
+ // TODO: "gluPerspective(65, 1, 1, 500)" -> "translateFactor = 610.0 / (-_modelZ)", ugly...
+ double translateFactor = 610.0 / (-_modelZ);
+
+ _modelX += (event->win_x - event->last_x) / translateFactor;
+ _modelY += -(event->win_y - event->last_y) / translateFactor;
+
+ _canvas->update();
+ }
+
+ // middle mouse button
+ if (_middleMouseDown)
+ {
+ // zoom in/out
+
+ FXEvent *event = (FXEvent*)data;
+
+ _modelZ += -(event->win_y - event->last_y) / 10.0;
+
+ // stop zooming at -1.0
+ if (_modelZ >= -1.0)
+ {
+ _modelZ = -1.0;
+ }
+
+ _canvas->update();
+ }
+
+ // right mouse button
+ if (_rightMouseDown)
+ {
+ // rotate around y-axis
+
+ FXEvent *event = (FXEvent*)data;
+
+ _modelRotationY = ((int)_modelRotationY + event->win_x - event->last_x) % 360;
+
+ _canvas->update();
+ }
+}
+
+
+
+/**
+ * Called by the system when the rendering surface needs a repaint
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+long RenderingSurface::onRepaint(FXObject *sender, FXSelector selector, void *data)
+{
+ glMatrixMode (GL_MODELVIEW);
+ glLoadIdentity();
+
+
+ // clear scene
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ // position and orientation of model
+ glTranslatef(_modelX, _modelY, _modelZ);
+ glRotatef(_modelRotationY, 0.0, 1.0, 0.0);
+
+ // render model
+ _lsystem->getModel()->draw();
+
+
+ // make it appear
+ _canvas->swapBuffers();
+}
--- /dev/null
+// Copyright (C) 2006 Erik Dahlberg
+//
+// This file is part of LSystem3d.
+//
+// LSystem3D 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.
+//
+// LSystem3D 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 LSystem3D; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+
+
+#ifndef RENDERINGSURFACE_H
+#define RENDERINGSURFACE_H
+
+#include "fx.h"
+#include "fx3d.h"
+
+#include "lindenmayersystem.h"
+
+
+
+/**
+ * The OpenGL rendering surface
+ */
+class RenderingSurface : public FXMainWindow
+{
+ // macro to set up class declaration
+ FXDECLARE(RenderingSurface)
+
+public:
+
+ // message ID's
+ enum
+ {
+ ID_CANVAS = FXMainWindow::ID_LAST,
+ ID_LAST
+ };
+
+ /**
+ * Constructor
+ * @param application the FOX application object
+ * @param lsystem the Lindenmayer-system
+ */
+ RenderingSurface(FXApp *application, LindenmayerSystem *lsystem);
+
+ /**
+ * Create and initialize the window
+ */
+ void create();
+
+ /**
+ * Initialize OpenGL
+ */
+ void initOpenGL();
+
+ /**
+ * Force an update of the rendering surface
+ */
+ void draw();
+
+ /**
+ * Called by the system when the left mouse button is pressed
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+ long onLeftMouseDown(FXObject *sender, FXSelector selector, void *data);
+
+ /**
+ * Called by the system when the left mouse button is released
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+ long onLeftMouseUp(FXObject *sender, FXSelector selector, void *data);
+
+ /**
+ * Called by the system when the middle mouse button is pressed
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+ long onMiddleMouseDown(FXObject *sender, FXSelector selector, void *data);
+
+ /**
+ * Called by the system when the middle mouse button is released
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+ long onMiddleMouseUp(FXObject *sender, FXSelector selector, void *data);
+
+ /**
+ * Called by the system when the right mouse button is pressed
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+ long onRightMouseDown(FXObject *sender, FXSelector selector, void *data);
+
+ /**
+ * Called by the system when the right mouse button is released
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+ long onRightMouseUp(FXObject *sender, FXSelector selector, void *data);
+
+ /**
+ * Called by the system when the mouse is moved
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+ long onMouseMove(FXObject *sender, FXSelector selector, void *data);
+
+ /**
+ * Called by the system when the rendering surface needs a repaint
+ * @param sender the sender object
+ * @param selector message type and id
+ * @param data event related data
+ * @return
+ */
+ long onRepaint(FXObject *sender, FXSelector selector, void *data);
+
+protected:
+
+ /**
+ * Constructor
+ */
+ RenderingSurface() {}
+
+private:
+
+ FXGLVisual *_visual; // Pixel format info
+ FXGLCanvas *_canvas; // OpenGL-capable drawing area
+
+ LindenmayerSystem *_lsystem; // The Lindenmayer System
+
+ // Model position
+ double _modelX,
+ _modelY,
+ _modelZ;
+
+ // Model rotation
+ double _modelRotationY;
+
+ // Mouse button status
+ bool _leftMouseDown,
+ _middleMouseDown,
+ _rightMouseDown;
+};
+
+
+
+#endif
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