#include "widget_imgproc_sidebar.h"
#include "ui_widget_imgproc_sidebar.h"
#include <QPalette>
#include <QPainter>
#include "app_cfg.h"

Widget_Imgproc_SideBar::Widget_Imgproc_SideBar(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Widget_Imgproc_SideBar)
   , m_curImage(NULL)
{
    ui->setupUi(this);
    ui->pbtn_ok->setEnabled(false);

    connect(ui->slider_brightness, SIGNAL(valueChanged(int)), ui->spin_brightness, SLOT(setValue(int)));
    connect(ui->slider_contrast, SIGNAL(valueChanged(int)), ui->spin_contrast, SLOT(setValue(int)));
}

Widget_Imgproc_SideBar::~Widget_Imgproc_SideBar()
{
    if (m_curImage != nullptr)
    {
        HGBase_DestroyImage(m_curImage);
    }
    delete ui;
}

void Widget_Imgproc_SideBar::setImage(HGImage image)
{
    HGBase_DestroyImage(m_curImage);
    HGBase_CloneImage(image, 0, 0, &m_curImage);
    on_pbtn_restoreDefault_clicked();
}

void Widget_Imgproc_SideBar::enableUI(bool enable)
{
    ui->pbtn_ok->setEnabled(enable);
}

void Widget_Imgproc_SideBar::paintEvent(QPaintEvent *e)
{
    (void)e;
    QPainter p(this);
    p.fillRect(0, 0, this->width(), this->height(), qRgb(240, 240, 240));
    p.setPen(QColor("gray"));
    p.drawRect(0, 0, width() -1, height() -1);
}

void Widget_Imgproc_SideBar::on_spin_brightness_valueChanged(int arg1)
{
    ui->slider_brightness->setValue(arg1);
    emit applyToImage(m_curImage, ui->spin_brightness->value(), ui->spin_contrast->value(),
                      ui->dspin_gamma->value(), ui->checkBox_enhanceText->isChecked());
}

void Widget_Imgproc_SideBar::on_spin_contrast_valueChanged(int arg1)
{
    ui->slider_contrast->setValue(arg1);
    emit applyToImage(m_curImage, ui->spin_brightness->value(), ui->spin_contrast->value(),
                      ui->dspin_gamma->value(), ui->checkBox_enhanceText->isChecked());
}

void Widget_Imgproc_SideBar::on_dspin_gamma_valueChanged(double arg1)
{
    ui->slider_gamma->setValue(static_cast<int>(arg1 * 100));
    emit applyToImage(m_curImage, ui->spin_brightness->value(), ui->spin_contrast->value(),
                      ui->dspin_gamma->value(), ui->checkBox_enhanceText->isChecked());
}

void Widget_Imgproc_SideBar::on_slider_gamma_valueChanged(int value)
{
    ui->dspin_gamma->setValue(static_cast<double>(value / 100.0));
    emit applyToImage(m_curImage, ui->spin_brightness->value(), ui->spin_contrast->value(),
                      ui->dspin_gamma->value(), ui->checkBox_enhanceText->isChecked());
}

void Widget_Imgproc_SideBar::on_pbtn_restoreDefault_clicked()
{
    ui->spin_brightness->setValue(0);
    ui->spin_contrast->setValue(0);
    ui->dspin_gamma->setValue(1.0);
    ui->checkBox_enhanceText->setChecked(false);
}

void Widget_Imgproc_SideBar::on_pbtn_ok_clicked()
{
    emit finish(true);
}

void Widget_Imgproc_SideBar::on_pbtn_cancel_clicked()
{
    on_pbtn_restoreDefault_clicked();
    emit finish(false);
}

void Widget_Imgproc_SideBar::on_checkBox_enhanceText_toggled(bool checked)
{
    emit applyToImage(m_curImage, ui->spin_brightness->value(), ui->spin_contrast->value(),
                      ui->dspin_gamma->value(), ui->checkBox_enhanceText->isChecked());
}