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Aufgeräumter GUI-Code. Klassen wurden in eigene 

cpp-Dateien ausgelagert. GUI.hpp wurde implementiert.
Klasseninitialisierung wurde in init.cpp ausgelagert.
This commit is contained in:
edgar 2019-11-14 15:09:43 +01:00
parent 2bd42a93db
commit 15b5d042ed
10 changed files with 247 additions and 211 deletions
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2
CMakeLists.txt
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@ -22,7 +22,7 @@ file(GLOB_RECURSE TESTS test/*.cpp)
set(LIB_PATH "${CMAKE_SOURCE_DIR}/../library")
include_directories(${LIB_PATH}/include)
add_executable(GUI ${SOURCES} ${HEADERS} main/main.cpp)
add_executable(GUI ${SOURCES} ${HEADERS} main/main.cpp src/Statusbar.cpp src/GUI_Window.cpp src/Image.cpp src/GUI.hpp src/init.cpp)
target_link_libraries(GUI ${LIB_PATH}/lib/liblibrary.a)

201
main/main.cpp
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@ -1,199 +1,10 @@
#include "GUI.hpp"
#include <iostream>
#include <Fl/Fl.H>
#include <Fl/Fl_Box.H>
#include <FL/Fl_Window.H>
#include <FL/fl_draw.H>
#include "vkvm.hpp"
#define window_height 600
#define window_width 800
//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.
*/
class Statusbar : public Fl_Box {
char *text;
public:
/** 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);
}
};
//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;
/*Function to handle the input*/
int handle(int e) {
switch (e) {
/*Mousebutton*/
case FL_PUSH:
if (Fl::event_button() == FL_LEFT_MOUSE) {
std::cout << "Mouse:left" << std::endl;
} else if (Fl::event_button() == FL_RIGHT_MOUSE) {
std::cout << "Mouse:right" << std::endl;
} else {
std::cout << "Mouse:middle" << std::endl;
}
return 1;
/*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) {
std::cout << "Mouse:left" << std::endl;
} else if (Fl::event_button() == FL_RIGHT_MOUSE) {
std::cout << "Mouse:right" << std::endl;
} else {
std::cout << "Mouse:middle" << std::endl;
}
return 1;
/*Mousemovement*/
case FL_MOVE:
x = Fl::event_x();
y = Fl::event_y();
std::cout << "Postion X:" << x << " Postion Y:" << y << std::endl;
return 1;
/*keyboardbutton*/
case FL_KEYBOARD:
button = Fl::event_button();
std::cout << "Keyboard:" << (unsigned short) button << " down"<<std::endl;
return 1;
case FL_KEYUP:
button = Fl::event_button();
std::cout << "Keyboard:" << (unsigned short) button << " up"<<std::endl;
return 1;
}
}
public:
My_Window(int x, int y, const char *l) : Fl_Window(x, y, l) {}
};
//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:
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. It reads the colors from the Shared Memory-Class*/
void change_color() {
for (int i = 0; i < h(); i++) {
for (int j = 0; j < w(); j++) {
vkvm::Color c = vkvm::getPixel(j,i);
buf[(i * w() + j) * 3 + 0] = c.getRed();
buf[(i * w() + j) * 3 + 1] = c.getGreen();
buf[(i * w() + j) * 3 + 2] = c.getBlue();
}
}
}
};
/*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_image(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) {
((Statusbar **) pointer)[0]->change_text();
Fl::repeat_timeout(1, change_status, pointer);
}
//main*************************************/
/**
* The main function initializes all needed classes and executes the functions.
/** main
* The main function executes the functions of the GUI.
*/
int main(int argc, char **argv) {
vkvm::initialize(0);
My_Window *window = new My_Window(window_width, window_height, "example");
Statusbar *status[5];
window->begin();
Image *image = new Image(0, 30, window_width, window_height - 30);
status[0] = new Statusbar(0, 0, 60, 30, "status0");
status[1] = new Statusbar(60, 0, 60, 30, "status1");
status[2] = new Statusbar(120, 0, 60, 30, "status2");
status[3] = new Statusbar(180, 0, 60, 30, "status3");
status[4] = new Statusbar(240, 0, 60, 30, "status4");
Fl::repeat_timeout(0.5, refresh_image, image);
Fl::repeat_timeout(1, change_color, image);
Fl::repeat_timeout(0.5, refresh_statusbar, status);
Fl::repeat_timeout(1, change_status, status);
window->end();
window->show(argc, argv);
return Fl::run();
GUI_init();
GUI_run();
}

39
src/GUI.hpp Normal file
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@ -0,0 +1,39 @@
#include <iostream>
#include <Fl/Fl.H>
#include <Fl/Fl_Box.H>
#include <FL/Fl_Window.H>
#include <FL/fl_draw.H>
#include "vkvm.hpp"
#ifndef GUI_GUI_HPP
#define GUI_GUI_HPP
class GUI_Window : public Fl_Window {
int x, y, button;
int handle(int e);
public:
GUI_Window(int x, int y, const char *l) : Fl_Window(x, y, l)
}
class Image : public Fl_Widget {
uchar *buf;
public:
Image(int x, int y, int w, int h);
void refresh_image(void *pointer);
void change_color(void *pointer);
void refresh_statusbar(void *pointer);
void change_status(void *pointer);
}
class Statusbar : public Fl_Box {
char *text;
public:
Statusbar (int x, int y, int w, int h, char *text);
void set_text(char *text);
void change_text();
void refresh_label();
}
void GUI_init();
void GUI_run();
#endif //GUI_GUI_HPP

63
src/GUI_Window.cpp Normal file
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@ -0,0 +1,63 @@
#include "GUI.hpp"
/** GUI_Window
* The GUI_Window-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.
* @param x The mouse-position on the x-axis.
* @param y The mouse-position on the y-axis.
* @param button The button that was pushed last.
*/
class GUI_Window : public Fl_Window {
int x, y, button;
/*Function to handle the input*/
int handle(int e) {
switch (e) {
/*Mousebutton*/
case FL_PUSH:
if (Fl::event_button() == FL_LEFT_MOUSE) {
std::cout << "Mouse:left" << std::endl;
} else if (Fl::event_button() == FL_RIGHT_MOUSE) {
std::cout << "Mouse:right" << std::endl;
} else {
std::cout << "Mouse:middle" << std::endl;
}
return 1;
/*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) {
std::cout << "Mouse:left" << std::endl;
} else if (Fl::event_button() == FL_RIGHT_MOUSE) {
std::cout << "Mouse:right" << std::endl;
} else {
std::cout << "Mouse:middle" << std::endl;
}
return 1;
/*Mousemovement*/
case FL_MOVE:
x = Fl::event_x();
y = Fl::event_y();
std::cout << "Postion X:" << x << " Postion Y:" << y << std::endl;
return 1;
/*keyboardbutton*/
case FL_KEYBOARD:
button = Fl::event_button();
std::cout << "Keyboard:" << (unsigned short) button << " down"<<std::endl;
return 1;
case FL_KEYUP:
button = Fl::event_button();
std::cout << "Keyboard:" << (unsigned short) button << " up"<<std::endl;
return 1;
}
}
public:
GUI_Window(int x, int y, const char *l) : Fl_Window(x, y, l) {}
};

66
src/Image.cpp Normal file
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@ -0,0 +1,66 @@
#include "GUI.hpp"
/** 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:
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. It reads the colors from the Shared Memory-Class*/
void change_color() {
for (int i = 0; i < h(); i++) {
for (int j = 0; j < w(); j++) {
vkvm::Color c = vkvm::getPixel(j,i);
buf[(i * w() + j) * 3 + 0] = c.getRed();
buf[(i * w() + j) * 3 + 1] = c.getGreen();
buf[(i * w() + j) * 3 + 2] = c.getBlue();
}
}
}
};
/*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_image(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) {
((Statusbar **) pointer)[0]->change_text();
Fl::repeat_timeout(1, change_status, pointer);
}

35
src/Statusbar.cpp Normal file
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@ -0,0 +1,35 @@
#include "GUI.hpp"
/** 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.
*/
class Statusbar : public Fl_Box {
char *text;
public:
/** 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);
}
};

5
src/demo.cpp
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@ -1,5 +0,0 @@
#include "demo.h"
int test() {
return 42;
}

8
src/demo.h
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@ -1,8 +0,0 @@
#ifndef SHARED_MEMORY_DEMO_H
#define SHARED_MEMORY_DEMO_H
int test();
#endif //SHARED_MEMORY_DEMO_H

35
src/init.cpp Normal file
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@ -0,0 +1,35 @@
#include "GUI.hpp"
#define window_height 600
#define window_width 800
/** GUI_init
* The GUI_init-function initializes all needed classes for the GUI.
*/
void GUI_init() {
vkvm::initialize(0);
My_Window *window = new My_Window(window_width, window_height, "example");
Statusbar *status[5];
Image *image = new Image(0, 30, window_width, window_height - 30);
//Dummy-Values TBD
status[0] = new Statusbar(0, 0, 60, 30, "status0");
status[1] = new Statusbar(60, 0, 60, 30, "status1");
status[2] = new Statusbar(120, 0, 60, 30, "status2");
status[3] = new Statusbar(180, 0, 60, 30, "status3");
status[4] = new Statusbar(240, 0, 60, 30, "status4");
}
/** GUI_run
* The GUI_run-function starts all functions needed for the GUI.
*/
void GUI_run() {
window->begin();
Fl::repeat_timeout(0.5, refresh_image, image);
Fl::repeat_timeout(1, change_color, image);
Fl::repeat_timeout(0.5, refresh_statusbar, status);
Fl::repeat_timeout(1, change_status, status);
window->end();
window->show(argc, argv);
return Fl::run();
}

4
test/test_demo.cpp → test/test_GUI.cpp
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@ -1,6 +1,6 @@
#include <catch2/catch.hpp>
#include "../src/demo.h"
#include "../src/GUI.hpp"
TEST_CASE("Demo test") {
TEST_CASE("GUI Test") {
REQUIRE(test() == 42);
}