backend/CScaleBox.cpp - devOpt - ArtemNech/simpleOpenGL

backend/CScaleBox.cpp
118 строк3 KB
Artem Nechitaylenko
initial
16 май 2026, 12:48
16 май 2026, 12:480d3ac6c
//
// Created by artem on 1/9/25.
//

#include "CScaleBox.h"
#include "CGraphicPainter.h"
#include <QFontMetrics>
#include <QApplication>
#include "CColorTheme.h"
#include <QImage>
#include <QPainter>

CScaleBox::CScaleBox(CPainter *painter)
{
    m_painter = painter;
    m_size    = m_painter->size().toSizeF();

    m_dsb = new QDoubleSpinBox(painter);

    connect(m_dsb, &QDoubleSpinBox::editingFinished, this, &CScaleBox::hide_dsb);

    m_dsb->setMinimum(0.2);
    m_dsb->setMaximum(1000.0f);
    //m_dsb->setVisible(false);
    m_dsb->hide();

    update_position();
}

CScaleBox::~CScaleBox()
{
    delete m_dsb;
}

void CScaleBox::doubleClicked()
{
    m_dsb->setValue(m_scale);
    m_dsb->move(m_position.toPoint());
    m_dsb->selectAll();
    //m_dsb->setVisible(true);
    m_dsb->show();
    m_dsb->setFocus();
}

void CScaleBox::resized(int w, int h)
{
    m_ogl_size = {(double )w, (double)h };
    update_position();
}

void CScaleBox::set_value(const float &value)
{
    m_scale = value * 100.0f;
    update_data();
}

QRectF *CScaleBox::rect()
{
    return &m_rect;
}

QImage *CScaleBox::image()
{
    return &m_image;
}

void CScaleBox::update_position()
{
    update_data();
}

void CScaleBox::update_data()
{
    m_scale = round(m_scale * 1000.0f) / 1000.0f;

    char buff[20];
    sprintf(buff, "%.1f%%", m_scale);
    std::string str = buff;



    QFont font = QApplication::font();
    QFontMetrics fm(font);
    m_size = fm.size(Qt::TextSingleLine, str.c_str());

    m_size.setHeight(m_size.height() + 2);
    m_size.setWidth(m_size.width() + 2);

    m_rect = QRectF(m_ogl_size.width() - difference_ - m_size.width(),
                    m_ogl_size.height() - m_size.height(),
                    m_size.width(),
                    m_size.height());
    m_position = m_rect.topLeft();
    CColorTheme color_theme;
    ngraph::NColor tmp = color_theme.base_colors()->background_color.darker(130);
    QColor bkg = QColor(tmp.red(), tmp.green(), tmp.blue(), tmp.alpha());
    m_image = QImage(m_rect.size().toSize(), QImage::Format_ARGB32);
    m_image.fill(bkg);
    QPainter painter(&m_image);
    tmp = color_theme.base_colors()->grid_colors.highlight.lighter(200);
    painter.setPen({tmp.red(), tmp.green(), tmp.blue(), tmp.alpha()});
    painter.drawRect(0.0,0.0,m_rect.width()-1, m_rect.height()-1);
    painter.drawText(1, m_rect.height() - 5, str.c_str());
    painter.end();
}

float CScaleBox::get_value() const
{
    return m_scale / 100.0f;
}

void CScaleBox::hide_dsb()
{
    m_scale = m_dsb->value();
    m_dsb->hide();
    update_data();
    emit scale_changed_by_user(m_scale / 100.0f);
}