main.cpp comments updated

This commit is contained in:
Edgar Schkrob 2019-11-07 12:43:16 +01:00
parent eb0b432afa
commit 2a8b11f6d3
1 changed files with 136 additions and 81 deletions

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@ -1,8 +1,8 @@
#include <iostream>
#include <Fl/Fl.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Timer.H>
#include <Fl/Fl_Box.H>
#include <Fl/Fl_Output.H>
#include <FL/Fl_Window.H>
#include <FL/fl_draw.H>
@ -10,130 +10,185 @@
#define window_height 600
#define window_width 800
/**************************************[[l***************************************/
/* This class provides a view to copy the offscreen surface to */
//Pixel ist ein neue Class fuer ein Pixel
class Pixel : public Fl_Widget {
Fl_Color color;
//Pixel zu malen, x,y sind fuer die Postion in Window.w,h ist width und height.color ist die Farbe von Pixel
void draw() {
fl_draw_box(FL_FLAT_BOX, x(), y(), w(), h(), color);
}
//Statusbar**************************************/
/** The class inherits a char *text from the Fl_Box. It also shows the window-resolution and the mouse-position.
* @param text: A pointer to a char-array, that can contain a text like a status or whatever you want.
* @parameter x: The mouse-position on the x-axis.
* @parameter y: The mouse-position on the y-axis:
* @parameter w: The width of a single pixel,
* @parameter h: The height of a single pixel.
*/
class Statusbar: public Fl_Box {
char *text;
public:
//Konstruktor
Pixel(int x, int y, int w, int h) :
Fl_Widget(x, y, w, h, 0) {}
//die Farbe von Pixel einstellen
void set_color(int RGB){
this->color = fl_rgb_color((uchar) ((RGB & 0xff000000) >> 24), (uchar) ((RGB & 0xff0000) >> 16),
(uchar) ((RGB & 0xff00) >> 8));
/** The constructor of Statusbar has to get additional parameters.
* @param x: The mouse-position on the x-axis.
* @param y: The mouse-position on the y-axis:
* @param w: The width of a single pixel,
* @param h: The height of a single pixel.
*/
Statusbar(int x, int y, int w, int h, char *text) :
Fl_Box(x, y, w, h,text) {
this->text = text;
};
void set_text(char *text) {
this->text = text;
}
//An exampel to show, how the content of the text can be changed.
void change_text(){
if(text=="status0")
set_text("status1");
else
set_text("status0");
}
//This function refreshes the statusbar
void refresh_label(){
this->label(text);
}
};
//Image**************************************/
/** The Image-class draws the bitmap that it get from the Shared Memory.
* @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.
*/
class Image : public Fl_Widget {
uchar *buf;
//Function to draw a bitmap
void draw() {
fl_draw_image(buf, x(), y(), w(), h());
}
/** The constructor of the image class, get additional
* @param x: The mouse-position on the x-axis.
* @param y: The mouse-position on the y-axis:
* @param w: The width of a single pixel,
* @param h: The height of a single pixel.
*/
public:
/*Constructor*/
Image(int x, int y, int w, int h) :
Fl_Widget(x, y, w, h, 0) {
buf = new uchar[w * h * 3];
/*Just an example.*/
for (int i = 0; i < h; i++) {
for (int j = 0; j < w; j++) {
buf[(j + (i * w)) * 3 + 1] = 0xff;
}
}
}
/*A function to change the colors of the image-class. The colors are changing in this order: green, blue, red*/
void change_color() {
for (int j = 1; j < w() * h() * 3; j++) {
if (buf[j] == 0xff) {
buf[j] = 0;
buf[j - 1] = 0xff;
}
}
if (buf[2] == 0xff)
buf[w() * h() * 3 - 1] = 0xff;
}
};
//My_Window*************************************/
/** The My_Windows-class generates a window, within the window it recognizes the curretn mouse-position.
* It also recognizes if a button is pushed on the keyboard or the mouse. Furthermore the class depict the
* content of the Image-class and provides functions to refresh it.
* @parame x The mouse-position on the x-axis.
* @parame y The mouse-position on the y-axis.
* @parame button The button that was pushed last.
*/
class My_Window : public Fl_Window {
int x, y, button;
int (*color_map)[window_width][window_height];
Pixel* pixels[window_width][window_height];
int c=0xff000000;
//die Inputs von Maus und Tastatur behandln
/*Function to handle the input*/
int handle(int e) {
switch (e) {
//Druck vom Maus behandln
/*Mousebutton*/
case FL_PUSH:
if(Fl::event_button()==FL_LEFT_MOUSE){
if (Fl::event_button() == FL_LEFT_MOUSE) {
std::cout << "Mouse:left" << std::endl;
}else if(Fl::event_button()==FL_RIGHT_MOUSE){
} else if (Fl::event_button() == FL_RIGHT_MOUSE) {
std::cout << "Mouse:right" << std::endl;
}else{
} else {
std::cout << "Mouse:middle" << std::endl;
}
return 1;
//Druck und Bewegung vom Maus behandln
/*Mousebutton and movement*/
case FL_DRAG:
x = Fl::event_x();
y = Fl::event_y();
std::cout << "Postion X:" << x << " Postion Y:" << y << std::endl;
if(Fl::event_button()==FL_LEFT_MOUSE){
if (Fl::event_button() == FL_LEFT_MOUSE) {
std::cout << "Mouse:left" << std::endl;
}else if(Fl::event_button()==FL_RIGHT_MOUSE){
} else if (Fl::event_button() == FL_RIGHT_MOUSE) {
std::cout << "Mouse:right" << std::endl;
}else{
} else {
std::cout << "Mouse:middle" << std::endl;
}
return 1;
//Bewegung vom Maus behandln
/*Mousemovement*/
case FL_MOVE:
x = Fl::event_x();
y = Fl::event_y();
std::cout << "Postion X:" << x << " Postion Y:" << y << std::endl;
return 1;
//Druck von der Tastator behandln
/*keyboardbutton*/
case FL_KEYBOARD:
button = Fl::event_button();
std::cout << "Keyboard:" << (unsigned short) button << std::endl;
return 1;
// case FL_:
}
}
public:
//Konstruktor
My_Window(int x, int y, const char *l, int (*color_map)[window_width][window_height]) : Fl_Window(x, y, l) {
this->color_map = color_map;
for (int i = 0; i < window_width; i++) {
for (int j = 0; j < window_height; j++) {
pixels[i][j]=new Pixel(i,j,1,1);
}
}
}
//Window akualisieren, refresh
int draw_bild() {
for (int i = 0; i < window_width; i++) {
for (int j = 0; j < window_height; j++) {
pixels[i][j]->set_color((*color_map)[i][j]);
pixels[i][j]->redraw();
}
}
}
/*Constructor*/
My_Window(int x, int y, const char *l) : Fl_Window(x, y, l) {}
};
//draw_bild() wird regelmaessig anrufen
void refresh(void* pointer){
((My_Window*)pointer)->draw_bild();
Fl::repeat_timeout(0.5, refresh,pointer);
}
//die Farbe von Pixels regekmaessig aendern
void change_color(void* pointer){
int (*color_map)[window_width][window_height];
color_map = (typeof(color_map))(pointer);
for (int i = 0; i < 100; i++) {
for (int j = 0; j < 100; j++) {
(*color_map)[i][j] ^= 0xffff0000;
}
}
Fl::repeat_timeout(1, change_color,pointer);
/*Functions to refresh the image.*/
void refresh_image(void *pointer) {
((Image *) pointer)->redraw();
Fl::repeat_timeout(0.5, refresh_image, pointer);//nach 0.5 sec refresh_bild(pointer) anrufen. Here pointer ist wie ein Parameter
}
void change_color(void *pointer) {
((Image *) pointer)->change_color();
Fl::repeat_timeout(1, change_color, pointer);
}
void refresh_statusbar(void *pointer) {
((Statusbar **) pointer)[0]->refresh_label();
Fl::repeat_timeout(0.5, refresh_statusbar, pointer);
}
void change_status(void *pointer) {
((Status_Leiste **) pointer)[0]->change_text();
Fl::repeat_timeout(1, change_status, pointer);
}
//main*************************************/
/**
* The main function initializes all needed classes and executes the functions.
*/
int main(int argc, char **argv) {
int color_map[window_width][window_height];
for (int i = 0; i < 100; i++) {
for (int j = 0; j < 100; j++) {
color_map[i][j] = 0xff000000;
}
}
My_Window *window = new My_Window(window_width, window_height, "example", &color_map);
My_Window *window = new My_Window(window_width, window_height, "example");
Status_Leiste *status[5];
window->begin();
Fl::repeat_timeout(0.5, refresh,window);//refresh anrufen nach 0.5 sec
Fl::repeat_timeout(1,change_color, &color_map);// change_color anrufen nach 1 sec
Bild *bild = new Bild(0, 30, window_width, window_height - 30);
status[0] = new Status_Leiste(0, 0, 60, 30, "status0");
status[1] = new Status_Leiste(60, 0, 60, 30, "status1");
status[2] = new Status_Leiste(120, 0, 60, 30, "status2");
status[3] = new Status_Leiste(180, 0, 60, 30, "status3");
status[4] = new Status_Leiste(240, 0, 60, 30, "status4");
Fl::repeat_timeout(0.5, refresh_bild, bild);
Fl::repeat_timeout(1, change_color, bild);
Fl::repeat_timeout(0.5, refresh_status_leiste, status);
Fl::repeat_timeout(1, change_status, status);
window->end();
window->show(argc, argv);
return Fl::run();
} // main
}main