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/*
* 21/08/2004 - 19:29
*
* GraphMonkey - mono based graphing calculator
* Copyright (C) 2004 Bellabes Lounis
* nolius@users.sourceforge.net
*
* This program 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 any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
using System;
using Gtk;
using Pango;
class Ecran_Form : DrawingArea
{
Pango.Layout layout;
public string equation;
public string equation2;
public string equation3;
public float x_min;
public float x_max;
public float y_min;
public float y_max;
public float graduation;
//for color
public Gdk.GC gc_red;
public Gdk.GC gc_green;
public Gdk.GC gc_blue;
public Gdk.GC gc_a;
public Gdk.GC gc_black;
// pour la sauvegarde des resultats
public bool first_draw = true;
float[] tab_result1_x = new float[501];
float[] tab_result1_y = new float[501];
float[] tab_result2_x = new float[501];
float[] tab_result2_y = new float[501];
float[] tab_result3_x = new float[501];
float[] tab_result3_y = new float[501];
/*
static void Main ()
{
Application.Init ();
new LayoutSample ();
Application.Run ();
}
*/
public Ecran_Form (string equation1, string equation21, string equation31, float x_min1, float x_max1, float y_min1, float y_max1, float graduation1)
{
Gtk.Window win = new Gtk.Window ("Screen");
//win.Resizable = false;
//Gdk.GC gc = new Gdk.GC (win);
//Gdk.Color red_color = new Gdk.Color (0xff, 0, 0);
//gc.Foreground = red_color;
win.SetDefaultSize (501, 501);
this.ExposeEvent += OnExposed;
win.Add (this);
win.ShowAll ();
this.equation = equation1;
this.equation2 = equation21;
this.equation3 = equation31;
this.x_min = x_min1;
this.x_max = x_max1;
this.y_min = y_min1;
this.y_max = y_max1;
this.graduation = graduation1;
}
void OnExposed (object o, ExposeEventArgs args)
{
// color
gc_red = new Gdk.GC (this.GdkWindow);
gc_green = new Gdk.GC (this.GdkWindow);
gc_blue = new Gdk.GC (this.GdkWindow);
gc_a = new Gdk.GC (this.GdkWindow);
gc_black = new Gdk.GC (this.GdkWindow);
Gdk.Color red_color = new Gdk.Color (0xff, 0, 0);
Gdk.Color green_color = new Gdk.Color (0 , 0xff, 0);
Gdk.Color blue_color = new Gdk.Color (0 , 0, 0xff);
Gdk.Color black_color = new Gdk.Color (0 , 0, 0);
Gdk.Color a_color = new Gdk.Color (0xff, 0, 0xff);
Gdk.Colormap colormap = Gdk.Colormap.System;
Gdk.Color[] tab_color = new Gdk.Color[100];
tab_color[0] = red_color;
tab_color[1] = green_color;
tab_color[2] = blue_color;
tab_color[3] = a_color;
tab_color[4] = black_color;
bool[] tab_bool = new bool[100];
colormap.AllocColors(tab_color, 5, true, true, tab_bool);
gc_red.Foreground = tab_color[0];
gc_green.Foreground = tab_color[1];
gc_blue.Foreground = tab_color[2];
gc_a.Foreground = tab_color[3];
gc_black.Foreground = tab_color[4];
Gdk.Rectangle rec_screen = new Gdk.Rectangle(0, 500, 0, 500);
//Gtk.StateType a = new Gtk.StateType();
//this.Style.SetForegroundGC(a, gc_blue);
trace_axe();
if(first_draw){
trace_equation();
first_draw = false;
}
else{
trace_equation2();
}
}
void trace_axe()
{
// ecran noir
this.GdkWindow.DrawRectangle(gc_black, true, -10, -10, 520, 520);
this.GdkWindow.DrawLine(gc_blue, (int) trans_x(x_min), (int) trans_y(0f), (int) trans_x(x_max), (int) trans_y(0f));
this.GdkWindow.DrawLine(gc_blue, (int) trans_x(0f), (int) trans_y(y_min), (int) trans_x(0f), (int) trans_y(y_max));
// graduation sur x
//0 au max
for(float i2=trans_x(0f); i2<=trans_x(x_max); i2=i2+ graduation*500/(x_max - x_min) ){
this.GdkWindow.DrawLine(gc_blue, (int) i2, (int) trans_y(0f), (int) i2, (int) (trans_y(0f)-5) ); //vertical
}
//0 au min
for(float i2=trans_x(0f); i2>=trans_x(x_min); i2=i2-graduation*500/(x_max - x_min) ){
this.GdkWindow.DrawLine(gc_blue, (int) i2, (int) trans_y(0f), (int) i2, (int) (trans_y(0f)-5) ); //vertical
}
// graduation sur y
//0 au max
for(float i2=trans_y(0f); i2<=trans_y(y_min); i2=i2+graduation*500/(y_max - y_min) ){
this.GdkWindow.DrawLine(gc_blue, (int) trans_x(0f), (int) i2, (int) (trans_x(0f)+5), (int) i2); //vertical
}
//0 au max
for(float i2=trans_y(0f); i2>=trans_y(y_max); i2=i2-graduation*500/(y_max - y_min) ){
this.GdkWindow.DrawLine(gc_blue, (int) trans_x(0f), (int) i2, (int) (trans_x(0f)+5),(int) i2); //vertical
}
}
void trace_equation()
{
Gdk.GC gc_eq;
for(int i_eq=0; i_eq <3; i_eq++){
operation op = new operation(equation);
gc_eq = gc_red;
if(i_eq==1){
op = new operation(equation2);
gc_eq = gc_a;
}
else if(i_eq==2){
op = new operation(equation3);
gc_eq = gc_green;
}
op.corrige();
//op.decouper();
try{
//operation op = new operation(equation);
//float res=op.calculer(1);
float xc_1 = x_min;
float yc_1 = op.calculer(x_min);
float xc_2;
float yc_2;
float pitch=(x_max-x_min)/500;
float x_1;
float y_1;
float x_2;
float y_2;
// sauvegarde des rsultats
int i_save = 0;
if(i_eq ==0){
tab_result1_x[i_save] = trans_x(xc_1);
tab_result1_y[i_save] = trans_y(yc_1);
}
else if(i_eq ==1){
tab_result2_x[i_save] = trans_x(xc_1);
tab_result2_y[i_save] = trans_y(yc_1);
}
else if(i_eq ==2){
tab_result3_x[i_save] = trans_x(xc_1);
tab_result3_y[i_save] = trans_y(yc_1);
}
for(float i_graph=x_min; i_graph<=x_max; i_graph=i_graph+pitch){
xc_2 = xc_1+pitch;
yc_2 = op.calculer(xc_2);
// transformation dans mon repere
x_1 = trans_x(xc_1);
y_1 = trans_y(yc_1);
x_2 = trans_x(xc_2);
y_2 = trans_y(yc_2);
// sauvegarde des rsultats
i_save++;
if(i_eq ==0){
tab_result1_x[i_save] = x_2;
tab_result1_y[i_save] = y_2;
}
else if(i_eq ==1){
tab_result2_x[i_save] = x_2;
tab_result2_y[i_save] = y_2;
}
else if(i_eq ==2){
tab_result3_x[i_save] = x_2;
tab_result3_y[i_save] = y_2;
}
double yc_1_verif = (double) yc_1;
double yc_2_verif = (double) yc_2;
if(!Double.IsNaN(yc_1_verif) && !Double.IsNaN(yc_2_verif)){
if((yc_1>y_min && yc_1<y_max) || (yc_2>y_min && yc_2<y_max)){
this.GdkWindow.DrawLine(gc_eq, (int) x_1, (int) y_1, (int) x_2, (int) y_2);
}
}
// on passe au point suivant
xc_1=xc_2;
yc_1=yc_2;
}
}
catch(Exception ex)
{
}
}
}
void trace_equation2()
{
for(int i =0; i<500; i++){
double yc_1_verif = (double) tab_result1_y[i];
double yc_2_verif = (double) tab_result1_y[i+1];
if(!Double.IsNaN(yc_1_verif) && !Double.IsNaN(yc_2_verif)){
if((yc_1_verif>0 && yc_1_verif<500) || (yc_2_verif>0 && yc_2_verif<500)){
this.GdkWindow.DrawLine(gc_red, (int) tab_result1_x[i], (int) tab_result1_y[i], (int) tab_result1_x[i+1], (int) tab_result1_y[i+1]);
}
}
}
for(int i =0; i<500; i++){
double yc_1_verif = (double) tab_result2_y[i];
double yc_2_verif = (double) tab_result2_y[i+1];
if(!Double.IsNaN(yc_1_verif) && !Double.IsNaN(yc_2_verif)){
if((yc_1_verif>0 && yc_1_verif<500) || (yc_2_verif>0 && yc_2_verif<500)){
this.GdkWindow.DrawLine(gc_a, (int) tab_result2_x[i], (int) tab_result2_y[i], (int) tab_result2_x[i+1], (int) tab_result2_y[i+1]);
}
}
}
for(int i =0; i<500; i++){
double yc_1_verif = (double) tab_result3_y[i];
double yc_2_verif = (double) tab_result3_y[i+1];
if(!Double.IsNaN(yc_1_verif) && !Double.IsNaN(yc_2_verif)){
if((yc_1_verif>0 && yc_1_verif<500) || (yc_2_verif>0 && yc_2_verif<500)){
this.GdkWindow.DrawLine(gc_green, (int) tab_result3_x[i], (int) tab_result3_y[i], (int) tab_result3_x[i+1], (int) tab_result3_y[i+1]);
}
}
}
}
// pour la transformation sur x
float trans_x(float x){
return (500/(x_max - x_min) * (x - x_min) );
}
// pour la transformation sur y
float trans_y(float y){
return ( -500/(y_max - y_min) * (y - y_max) );
}
}
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