From 2a8b11f6d3a91df04396a67fb792791a1e5645f8 Mon Sep 17 00:00:00 2001 From: Edgar Schkrob Date: Thu, 7 Nov 2019 12:43:16 +0100 Subject: [PATCH] main.cpp comments updated --- main/main.cpp | 217 +++++++++++++++++++++++++++++++------------------- 1 file changed, 136 insertions(+), 81 deletions(-) diff --git a/main/main.cpp b/main/main.cpp index 9100a35..934eceb 100644 --- a/main/main.cpp +++ b/main/main.cpp @@ -1,8 +1,8 @@ #include #include -#include -#include +#include +#include #include #include @@ -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 \ No newline at end of file +}main \ No newline at end of file