simple-draw/main/main.cpp

#include <iostream>
#include "internal.hpp"
#include "vkvm.hpp"
#include "../src/DrawRender.hpp"
#include <unistd.h>

/**
 * @author: Shaohua Tong
 * @since: v0.0.1
 * draw circle, square, rectangle and mouse drawing
 */
void outPutPixel(int windowHeight, int windowWidth, vkvm::Color brushColor);

int main() {
    vkvm::initialize(0);

    vkvm::Color penColor(250,102,0);
    int penWidth = 5;
    DrawRender drawRender(vkvm::getWidth(), vkvm::getHeight(), vkvm::getBackgroundColor(), penColor, penWidth);

    vkvm::registerEvent(vkvm::EventType::MouseMove, [&drawRender]() {
        vkvm::Coordinates mousePosition = vkvm::getMousePosition();
        mousePosition.y = mousePosition.y - 30;
        drawRender.setMousePostion(mousePosition);

        drawRender.graphicsUpdate(CURSOR);
        vkvm::callEvent(vkvm::EventType::Redraw);

        if(drawRender.getMouseDown()) {
            if (drawRender.getTurnOnBrush()) {
                drawRender.graphicsUpdate(BRUSH);
                vkvm::callEvent(vkvm::EventType::Redraw);
            }

            if((drawRender.getKeyCode()) == vkvm::KeyCode::C) {
                drawRender.graphicsUpdate(CIRCLE);
                vkvm::callEvent(vkvm::EventType::Redraw);
            }

            else if((drawRender.getKeyCode()) == vkvm::KeyCode::R) {
                drawRender.graphicsUpdate(RECTANGLE);
                vkvm::callEvent(vkvm::EventType::Redraw);
            }
        }
    });

    vkvm::registerEvent(vkvm::EventType::MouseLeftDown, [&drawRender]() {
        drawRender.setFinish(false);

        if(!drawRender.getMouseDown()) {
            drawRender.setMouseDown(true);

            vkvm::Coordinates mousePosition = vkvm::getMousePosition();
            mousePosition.y = mousePosition.y - 30;
            drawRender.setMouseLeftDownPostion(mousePosition);
        }

        if((!drawRender.getTurnOnBrush()) && ((drawRender.getKeyCode() - 65536) == vkvm::KeyCode::B)) {
            drawRender.setTurnOnBrush(true);
        }
    });

    vkvm::registerEvent(vkvm::EventType::MouseLeftUp, [&drawRender]() {
        drawRender.setFinish(true);

        vkvm::Coordinates mousePosition = vkvm::getMousePosition();
        mousePosition.y = mousePosition.y - 30;
        drawRender.setMousePostion(mousePosition);

        if(((drawRender.getKeyCode()) == vkvm::KeyCode::C) && drawRender.getPainting()) {
            drawRender.graphicsUpdate(CIRCLE);
            vkvm::callEvent(vkvm::EventType::Redraw);
        }

        else if(((drawRender.getKeyCode()) == vkvm::KeyCode::R) && drawRender.getPainting()) {
            drawRender.graphicsUpdate(RECTANGLE);
            vkvm::callEvent(vkvm::EventType::Redraw);
        }

        drawRender.setTurnOnBrush(false);
        drawRender.setMouseDown(false);
        drawRender.setPainting(false);


    });

    vkvm::registerEvent(vkvm::EventType::KeyDown, [&drawRender]() {
        drawRender.setKeyCode(vkvm::getLastPressedKey());

        if((drawRender.getKeyCode()) == vkvm::KeyCode::D) {
            drawRender.clear();
            vkvm::callEvent(vkvm::EventType::Redraw);
        }

        else if((drawRender.getKeyCode()) == vkvm::KeyCode::Q) {
            drawRender.graphicsUpdate(SHAPE);
            vkvm::callEvent(vkvm::EventType::Redraw);
        }
    });

    vkvm::registerEvent(vkvm::EventType::KeyUp, [&drawRender]() {
        drawRender.setKeyCode(vkvm::getLastPressedKey());

        if((drawRender.getKeyCode()) == vkvm::KeyCode::D) {
            drawRender.clear();
            vkvm::callEvent(vkvm::EventType::Redraw);
        }
    });

    while(1){
        sleep(5);
    }

    return 0;
}

/***************************read pixel in shared memory and test output in console******************************************/
void outPutPixel(int windowHeight, int windowWidth, vkvm::Color penColor) {
    for(int y = 0; y < windowHeight; y++) {
        for(int x = 0; x < windowWidth; x++) {
            if(vkvm::getPixel(x, y).getRed() == penColor.getRed()) {
                std::cout << "*";
            } else {
                std::cout << " ";
            }
        }
        std::cout << "\n";
    }
}