TriangleTool.cpp

#include "TriangleTool.h"

void TriangleTool::onMousePressed(const sf::Vector2f& pos, sf::Mouse::Button btn) {
    if (btn == sf::Mouse::Left) {
        m_drawing = true;
        m_start = pos;
        m_current = pos;
    }
}

void TriangleTool::onMouseReleased(const sf::Vector2f& pos, sf::Mouse::Button btn) {
    if (btn == sf::Mouse::Left && m_drawing) {
        m_drawing = false;
        sf::ConvexShape tri;
        tri.setPointCount(3);
        tri.setPoint(0, { (m_start.x + pos.x) / 2.f, m_start.y });
        tri.setPoint(1, { m_start.x, pos.y });
        tri.setPoint(2, { pos.x, pos.y });
        tri.setFillColor(sf::Color(0, 0, 0, 0));
        tri.setOutlineColor(m_color);
        tri.setOutlineThickness(m_thickness);
        m_canvas->drawToCanvas(tri);
    }
}

void TriangleTool::onMouseMoved(const sf::Vector2f& pos) {
    if (m_drawing) m_current = pos;
}

void TriangleTool::drawPreview(sf::RenderWindow& win) {
    if (!m_drawing) return;
    sf::ConvexShape tri;
    tri.setPointCount(3);
    tri.setPoint(0, { (m_start.x + m_current.x) / 2.f, m_start.y });
    tri.setPoint(1, { m_start.x, m_current.y });
    tri.setPoint(2, { m_current.x, m_current.y });
    tri.setFillColor(sf::Color(0, 0, 0, 0));
    tri.setOutlineColor(m_color);
    tri.setOutlineThickness(m_thickness);
    m_canvas->drawPreview(win, tri);
}