main.cpp comments updated
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Edgar Schkrob
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217
main/main.cpp
217
main/main.cpp
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#include <iostream>
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#include <Fl/Fl.H>
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#include <FL/Fl_Box.H>
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#include <FL/Fl_Timer.H>
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#include <Fl/Fl_Box.H>
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#include <Fl/Fl_Output.H>
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#include <FL/Fl_Window.H>
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#include <FL/fl_draw.H>
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#define window_height 600
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#define window_width 800
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/**************************************[[l***************************************/
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/* This class provides a view to copy the offscreen surface to */
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//Pixel ist ein neue Class fuer ein Pixel
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class Pixel : public Fl_Widget {
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Fl_Color color;
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//Pixel zu malen, x,y sind fuer die Postion in Window.w,h ist width und height.color ist die Farbe von Pixel
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void draw() {
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fl_draw_box(FL_FLAT_BOX, x(), y(), w(), h(), color);
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}
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//Statusbar**************************************/
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/** The class inherits a char *text from the Fl_Box. It also shows the window-resolution and the mouse-position.
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* @param text: A pointer to a char-array, that can contain a text like a status or whatever you want.
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* @parameter x: The mouse-position on the x-axis.
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* @parameter y: The mouse-position on the y-axis:
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* @parameter w: The width of a single pixel,
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* @parameter h: The height of a single pixel.
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*/
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class Statusbar: public Fl_Box {
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char *text;
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public:
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//Konstruktor
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Pixel(int x, int y, int w, int h) :
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Fl_Widget(x, y, w, h, 0) {}
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//die Farbe von Pixel einstellen
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void set_color(int RGB){
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this->color = fl_rgb_color((uchar) ((RGB & 0xff000000) >> 24), (uchar) ((RGB & 0xff0000) >> 16),
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(uchar) ((RGB & 0xff00) >> 8));
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/** The constructor of Statusbar has to get additional parameters.
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* @param x: The mouse-position on the x-axis.
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* @param y: The mouse-position on the y-axis:
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* @param w: The width of a single pixel,
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* @param h: The height of a single pixel.
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*/
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Statusbar(int x, int y, int w, int h, char *text) :
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Fl_Box(x, y, w, h,text) {
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this->text = text;
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};
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void set_text(char *text) {
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this->text = text;
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}
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//An exampel to show, how the content of the text can be changed.
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void change_text(){
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if(text=="status0")
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set_text("status1");
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else
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set_text("status0");
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}
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//This function refreshes the statusbar
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void refresh_label(){
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this->label(text);
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}
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};
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//Image**************************************/
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/** The Image-class draws the bitmap that it get from the Shared Memory.
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* @param *buf: A pointer to the bitmap, that the image-class has to draw. Three chars are needed to get the RGB-value of a pixel, so the size equals window_height * window_width * 3.
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*/
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class Image : public Fl_Widget {
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uchar *buf;
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//Function to draw a bitmap
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void draw() {
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fl_draw_image(buf, x(), y(), w(), h());
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}
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/** The constructor of the image class, get additional
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* @param x: The mouse-position on the x-axis.
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* @param y: The mouse-position on the y-axis:
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* @param w: The width of a single pixel,
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* @param h: The height of a single pixel.
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*/
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public:
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/*Constructor*/
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Image(int x, int y, int w, int h) :
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Fl_Widget(x, y, w, h, 0) {
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buf = new uchar[w * h * 3];
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/*Just an example.*/
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for (int i = 0; i < h; i++) {
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for (int j = 0; j < w; j++) {
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buf[(j + (i * w)) * 3 + 1] = 0xff;
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}
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}
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}
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/*A function to change the colors of the image-class. The colors are changing in this order: green, blue, red*/
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void change_color() {
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for (int j = 1; j < w() * h() * 3; j++) {
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if (buf[j] == 0xff) {
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buf[j] = 0;
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buf[j - 1] = 0xff;
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}
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}
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if (buf[2] == 0xff)
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buf[w() * h() * 3 - 1] = 0xff;
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}
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};
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//My_Window*************************************/
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/** The My_Windows-class generates a window, within the window it recognizes the curretn mouse-position.
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* It also recognizes if a button is pushed on the keyboard or the mouse. Furthermore the class depict the
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* content of the Image-class and provides functions to refresh it.
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* @parame x The mouse-position on the x-axis.
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* @parame y The mouse-position on the y-axis.
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* @parame button The button that was pushed last.
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*/
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class My_Window : public Fl_Window {
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int x, y, button;
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int (*color_map)[window_width][window_height];
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Pixel* pixels[window_width][window_height];
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int c=0xff000000;
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//die Inputs von Maus und Tastatur behandln
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/*Function to handle the input*/
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int handle(int e) {
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switch (e) {
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//Druck vom Maus behandln
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/*Mousebutton*/
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case FL_PUSH:
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if(Fl::event_button()==FL_LEFT_MOUSE){
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if (Fl::event_button() == FL_LEFT_MOUSE) {
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std::cout << "Mouse:left" << std::endl;
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}else if(Fl::event_button()==FL_RIGHT_MOUSE){
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} else if (Fl::event_button() == FL_RIGHT_MOUSE) {
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std::cout << "Mouse:right" << std::endl;
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}else{
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} else {
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std::cout << "Mouse:middle" << std::endl;
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}
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return 1;
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//Druck und Bewegung vom Maus behandln
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/*Mousebutton and movement*/
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case FL_DRAG:
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x = Fl::event_x();
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y = Fl::event_y();
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std::cout << "Postion X:" << x << " Postion Y:" << y << std::endl;
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if(Fl::event_button()==FL_LEFT_MOUSE){
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if (Fl::event_button() == FL_LEFT_MOUSE) {
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std::cout << "Mouse:left" << std::endl;
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}else if(Fl::event_button()==FL_RIGHT_MOUSE){
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} else if (Fl::event_button() == FL_RIGHT_MOUSE) {
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std::cout << "Mouse:right" << std::endl;
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}else{
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} else {
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std::cout << "Mouse:middle" << std::endl;
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}
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return 1;
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//Bewegung vom Maus behandln
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/*Mousemovement*/
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case FL_MOVE:
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x = Fl::event_x();
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y = Fl::event_y();
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std::cout << "Postion X:" << x << " Postion Y:" << y << std::endl;
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return 1;
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//Druck von der Tastator behandln
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/*keyboardbutton*/
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case FL_KEYBOARD:
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button = Fl::event_button();
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std::cout << "Keyboard:" << (unsigned short) button << std::endl;
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return 1;
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// case FL_:
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}
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}
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public:
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//Konstruktor
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My_Window(int x, int y, const char *l, int (*color_map)[window_width][window_height]) : Fl_Window(x, y, l) {
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this->color_map = color_map;
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for (int i = 0; i < window_width; i++) {
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for (int j = 0; j < window_height; j++) {
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pixels[i][j]=new Pixel(i,j,1,1);
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}
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}
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}
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//Window akualisieren, refresh
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int draw_bild() {
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for (int i = 0; i < window_width; i++) {
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for (int j = 0; j < window_height; j++) {
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pixels[i][j]->set_color((*color_map)[i][j]);
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pixels[i][j]->redraw();
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}
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}
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}
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/*Constructor*/
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My_Window(int x, int y, const char *l) : Fl_Window(x, y, l) {}
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};
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//draw_bild() wird regelmaessig anrufen
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void refresh(void* pointer){
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((My_Window*)pointer)->draw_bild();
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Fl::repeat_timeout(0.5, refresh,pointer);
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}
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//die Farbe von Pixels regekmaessig aendern
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void change_color(void* pointer){
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int (*color_map)[window_width][window_height];
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color_map = (typeof(color_map))(pointer);
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for (int i = 0; i < 100; i++) {
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for (int j = 0; j < 100; j++) {
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(*color_map)[i][j] ^= 0xffff0000;
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}
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}
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Fl::repeat_timeout(1, change_color,pointer);
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/*Functions to refresh the image.*/
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void refresh_image(void *pointer) {
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((Image *) pointer)->redraw();
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Fl::repeat_timeout(0.5, refresh_image, pointer);//nach 0.5 sec refresh_bild(pointer) anrufen. Here pointer ist wie ein Parameter
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}
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void change_color(void *pointer) {
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((Image *) pointer)->change_color();
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Fl::repeat_timeout(1, change_color, pointer);
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}
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void refresh_statusbar(void *pointer) {
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((Statusbar **) pointer)[0]->refresh_label();
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Fl::repeat_timeout(0.5, refresh_statusbar, pointer);
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}
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void change_status(void *pointer) {
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((Status_Leiste **) pointer)[0]->change_text();
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Fl::repeat_timeout(1, change_status, pointer);
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}
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//main*************************************/
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/**
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* The main function initializes all needed classes and executes the functions.
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*/
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int main(int argc, char **argv) {
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int color_map[window_width][window_height];
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for (int i = 0; i < 100; i++) {
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for (int j = 0; j < 100; j++) {
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color_map[i][j] = 0xff000000;
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}
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}
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My_Window *window = new My_Window(window_width, window_height, "example", &color_map);
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My_Window *window = new My_Window(window_width, window_height, "example");
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Status_Leiste *status[5];
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window->begin();
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Fl::repeat_timeout(0.5, refresh,window);//refresh anrufen nach 0.5 sec
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Fl::repeat_timeout(1,change_color, &color_map);// change_color anrufen nach 1 sec
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Bild *bild = new Bild(0, 30, window_width, window_height - 30);
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status[0] = new Status_Leiste(0, 0, 60, 30, "status0");
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status[1] = new Status_Leiste(60, 0, 60, 30, "status1");
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status[2] = new Status_Leiste(120, 0, 60, 30, "status2");
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status[3] = new Status_Leiste(180, 0, 60, 30, "status3");
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status[4] = new Status_Leiste(240, 0, 60, 30, "status4");
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Fl::repeat_timeout(0.5, refresh_bild, bild);
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Fl::repeat_timeout(1, change_color, bild);
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Fl::repeat_timeout(0.5, refresh_status_leiste, status);
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Fl::repeat_timeout(1, change_status, status);
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window->end();
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window->show(argc, argv);
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return Fl::run();
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} // main
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}main
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